Before construction, the technicians must be familiar with the drawings and relevant data carefully, and understand the technological process, working medium, pressure, temperature and other technical parameters as well as the materials, models and specifications of the materials and accessories used. The construction personnel must be fully familiar with the construction procedures, construction methods, quality standards, operating procedures and safety technical requirements, and strictly implement them during construction. Main materials used for making galvanized air duct, Haikou Acetylene pipe It shall comply with the current national product standards and the enterprise standards of the manufacturer, and shall have the factory certificate and other relevant material certificates. All material accessories must be rechecked with the design and current national product standards, and shall have the factory certificate, material quality assurance and other relevant material certificates. Combined flange air duct is also called thin-walled steel plate flange air duct. It is an air duct connected by non profile steel and made of galvanized steel plate. Its connection form can be directly pressed by strips or steel plates or the air duct and flange can be integrally formed. This kind of air duct has advanced manufacturing technology, accurate blanking, low material consumption, stable product quality, many varieties, smooth contour lines, and air leakage rate far lower than the national standard, which is conducive to the production of ventilation ducts to be industrialized, large-scale, standardized and automated. It is a scientific and technological achievement project that has been vigorously promoted in China in recent years as one of the non blue air duct processes. The National Grand Theater project is to use this new process air duct. Common plate flange air duct 1 Fabrication of composite flange air duct Common mechanical equipment for fabrication of composite flange air duct include: rectangular air duct full-automatic production line, plasma automatic cutting machine, flange strip forming machine, hook code forming machine, conjoined flange forming machine, etc. The combined flange air duct is based on the air duct size given in the drawing, Acetylene pipe Where can I find it? Fully automatic production line is used to produce coiled material with a common width of 1250mm, and the plate thickness is 0.5~1.2mm. When the large side of the air duct is less than or equal to 2m, the air duct is formed into TDC1 flange, and the standard pipe length is 1170mm; When the large side of the fabricated air duct is less than or equal to 2.5m, the air duct is formed into TDC2 flange, and the standard pipe length is 1250mm; When the large side of the fabricated air duct is more than 2.5m, the air duct is formed into an angle steel flange, and the standard pipe length is 1230mm

Comprehensive evaluation of world conveyor belt high quality Acetylene pipe The development level and the application practice of large industrial and mining enterprises in China, in the future, the technology and market development of conveyor belt vulcanizers in China will show the following eight characteristics: more intelligent: Canada Xiaoai Group has recently launched a new X-PAD conveyor belt vulcanizer control system, which uses full touch color screen control, and one operating system can implement real-time monitoring on multiple pairs of vulcanizer heating plates, And it can conduct remote monitoring through WIFI. This system will greatly improve the intelligent control degree of conveyor belt vulcanizer, and undoubtedly represents an important trend in the future development of conveyor belt vulcanizer technology. Higher cost performance: With the improvement of refined management of industrial and mining enterprises, the extensive "stupid and bulky" equipment can no longer adapt to modern production, and the provision of "customized combination" system solutions will become an inevitable choice for future conveyor belt vulcanizer suppliers - conveyor belt vulcanizer is a "tool type" equipment, Suppliers or design units can assist industrial and mining enterprises to comprehensively analyze the belt width, lap length and other use conditions of the conveyor system, and customize the overall solution of the conveyor belt vulcanizer that can be applied to multiple belt joints and maintenance at the same time. So as to effectively reduce procurement costs. More security: in terms of security measures, Acetylene pipe Where can I find it? As the leader in the conveyor belt vulcanizing machine industry, Xiao Ai segmented vulcanizing machine can be used as a model: (1) its beam system adopts aviation grade aluminum profile, zhuanliE design, and has a safety window. When it is used, it penetrates the safety bar, and is equipped with a safety pin protection system; (2) International certified cables such as American UL are used to fully ensure the safety and reliability of use. (3) The recently launched new UBR vulcanizing machine pioneered the use of new materials to replace the bolt structure with a strong rope system, and designed a related structure between the new beams, which used the safety protection measures of the vulcanizing machine pressurization system to the extreme.

Haikou Acetylene pipe 1. The manufacturing quality shall be guaranteed according to the national standards of Oxygen Hose (GB/T2550-91) and Acetylene Hose (GB/T2551-91) respectively, and the hose shall have sufficient compressive strength and flame retardant characteristics. According to the national standard, the oxygen hose is red, the working pressure vessel is 1.5MPa, the inner diameter of the hose is 8mm, and the outer diameter is 18mm; 2. Care must be taken when storing and using the hose to keep it clean and free from damage. For example, avoid exposure to sunlight, rain and snow, and prevent contact with substances such as acid, alkali, oil and other organic solvents that can damage the hose. The storage temperature shall be - 15 ℃~40 ℃, and the distance from the personnel shall not be less than 1m; 3. When using a new hose, the talcum powder on the inner wall of the hose must be blown out first to prevent the channel of the welding torch from being blocked. Avoid external extrusion and mechanical damage during use, and do not fold the pipe body. 4. If the oxygen hose catches fire, stop the air supply first, and then deal with the fire hose, but do not bend the hose. The cylinder valve must be closed when the cylinder is not in use or after work. 5. The hose with bulge, crack or air leakage shall not be used, and the air leakage hose shall not be used after being stuck with adhesive tape. Acetylene pipe Where can I find it? When connecting the two ends of the hose with tools, clamp or wire shall be used to fasten, and the intermediate joint shall be fastened with a gas pipe connector.

What are the process requirements for making welded air ducts? Both ends of the expansion joint are welded to the outer wall of the air duct. high quality Acetylene pipe When the fan coil unit is equipped with two air outlets, the double-layer shutter with regulating valve should be selected. Usually only small installation space is required. Without increasing any pressure drop, a circular pipe with a diameter of 200mm in the same installation space can replace 250 × 150mm rectangular pipe. Features: The iron sheet is prone to chemical reaction in various environments, causing corrosion and rust. However, zinc hardly changes in dry air. The thermal insulation and fire resistance performance indicators of the welded air duct system shall meet the requirements of Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering (GB50243) and Technical Specification for Ventilation Ducts (JGJ141) respectively. In the ventilation system: supply fresh air and exhaust gas, exhaust harmful gas outdoors, and send outdoor fresh air indoors. This technology is widely used in various process pipelines, oil and gas pipelines in oil fields and other cleaning projects. Especially for pipeline cleaning of long-distance fluid transportation, it has advantages that cannot be replaced by other technologies. When the air leakage rate exceeds the requirements of the design and acceptance specifications, the leakage can be detected by listening, touching, observing, water or smoke, and the air leakage position can be found and marked; After repair, retest until qualified. Safety seal ring leak proof system. The exquisite spiral pressing rib technology enables the spiral air duct to have good strength under pressure, Acetylene pipe Where can I find it? With the addition of spiral ribs, the thickness of the seam is four times that of the pipe body. The rigidity of the pipe is very large, which shows the advantages of firmness. It can withstand large pressure loads without damaging deformation. The thickness of materials can be reduced by 15%, reducing costs.

What is stainless steel spiral duct? Acetylene pipe Where can I find it? The products are mainly used to connect the air flow between two places and play the role of ventilation. There are three types of galvanized spiral air ducts, stainless steel spiral air ducts and composite spiral air ducts. Here we mainly talk about the stainless steel spiral air duct, and briefly analyze the reason why it is widely used in villas. The so-called stainless steel air duct is strictly a kind of air duct processing technology, also known as spiral seamed thin-walled tube. The best quality is the thin-walled tube with spiral seamed made of metal strips. Because the applied material is metal, it is also called spiral seamed metal tube. It was first used in the military industry of western countries, such as ships, ship ventilation, air conditioning systems, and later used in trains Subway, mine and other civil facilities. By 2000, according to statistics, 95.6% of office buildings, shopping malls and subways in the United States had applied spiral air ducts. In civil residential buildings, 72.5% of central air conditioners use spiral air ducts. Since the mid-1990s, China has introduced this technology into the shipbuilding industry. With the rapid development of China's economy, the use of central air conditioners has increased year by year, and the quality of auxiliary products for exhaust and air supply has been continuously improved. Spiral air ducts have been widely used in some villas. (1) Product standardization: The production of spiral round air duct fittings (pipe fittings and joints) has been highly automated, systematic, and has industrialized quality control. It is well known that the wind resistance of circular duct is much smaller than that of rectangular duct. (2) Easy to install. The installation of spiral air duct significantly reduces the connection points between pipes and minimizes the leakage at the joint of pipe fittings. The typical spiral air duct is 3~6m long, while the typical rectangular air duct is only 1~1.5m long; The connection of two spiral air ducts requires only one pipe connector, while the connection of traditional rectangular air ducts often requires a completely independent double flange system. (3) Usually only small installation space is required: the same high quality Acetylene pipe The circular pipe with a diameter of 200mm in the installation space can replace 250 × 150mm rectangular pipe. On the premise of not increasing additional installation space, several parallel circular pipes can replace flat rectangular pipes.