People buy in daily life high quality Oil resistant hose Take it home for installation. It is obviously installed very well, but the spiral air duct will become loose for a long time, which gives most users a headache. So what is the problem with spiral air duct reinforcement? This is of course necessary. The following manufacturer of galvanized spiral air duct will give you a detailed introduction. 1. Reinforcement measures shall be taken for circular pipes (excluding spiral pipes) with a diameter greater than or equal to 80 mm, a section length greater than 1250 mm or a total area greater than 4 ㎡; 2. The side length of rectangular air duct is more than 630 mm, the length of pipeline insulation side is more than 800 mm, the section length is more than 1250 mm, or the plane area of one side of low pressure pipeline is more than 1.2 m2, and that of medium and high pressure pipeline is more than 1.0 m2, so reinforcement measures should be taken; 3. For reinforcement of irregular oval pipes, the reinforcement method of rectangular pipes shall be referred to. The spiral air duct manufacturer Hongyuansheng Electromechanical also has something to say: the reinforcement of galvanized air duct non-metallic air duct should also meet the following requirements: when the diameter or side length of the rigid PVC pipe is greater than 500 mm, the connection between the pipe and the flange should be equipped with stiffening plates, and the spacing should not be greater than 450 mm. The reinforcement of organic and inorganic FRP pipes shall be made of the same materials with the same anti-corrosion performance as the pipes themselves. Oil resistant hose company The manufacture of rectangular pipe elbows shall generally adopt concentric arc elbows with the curvature radius of the length inside and outside the plane. When other forms of elbow are used, and the plane length is more than 500 mm, the elbow deflector shall be set.
The reason why welded air duct has become the favorite of the market, Guizhou Oil resistant hose Compared with the air duct made of traditional materials, it has obvious advantages in technology, energy conservation, environmental protection and economy. This product has been inspected, tested and proved by the National Building Materials Testing Center, the National Fire Building Materials Quality Supervision and Inspection Center, the National Air Conditioning Equipment Quality Supervision and Inspection Center, the National Non ferrous Metal Quality Supervision and Inspection Center and other relevant authorities, In addition, no smoke is generated in the fire, and the smoke density is only 4, which is 10 to 20 times that of other organic foam materials. In modern buildings, central air conditioning is very common, and ventilation ducts are an important part of the central air conditioning system. According to statistics, China's annual demand is about 100 million square meters, reaching 20 billion yuan. Among all kinds of air ducts, welded air ducts stand out for their unique excellent performance and cost performance, and are becoming the new favorite in the central air-conditioning market. The manufacturing of welded air ducts is highly automated and the production speed is very fast. Ordinary air ducts can produce 20~40 meters per minute. Due to the low price of the raw material galvanized strip steel compared with the whole galvanized steel sheet, and its factory production and specification standardization, the cost is lower than that of rectangular air ducts; In addition, the total cost is low due to the less demand for supports and hangers and the less installation work. Since the four corners of rectangular air duct are prone to turbulence, Oil resistant hose company The effective flow area is reduced. The technology of welded air duct is very close to the international level; In terms of supporting services, more and more enterprises like this company provide high standard services. If there are any suggestions, we hope to see more and more enterprises with a sense of mission for the development of the industry.
We all know Oil resistant hose company The noise pollution in industrial production is very serious, and noise pollution is also an important factor affecting workers' enthusiasm for production. Ball mills were once a major source of noise in mining equipment. In order to reduce the noise generated by ball mills, protect the physical and mental health of workers, improve workers' enthusiasm for production, and create greater profits for the company, Through the efforts and research of domestic and foreign industry experts, the ball mill liner has been transformed. Through repeated tests and comparison, it is found that the noise generated by the rubber liner and the manganese steel liner of the ball mill is far less than the manganese steel liner when the technical parameters are up to standard. According to the data provided by the noise monitoring station and the concentrator, We analyzed the noise intensity and the economic benefits: the domestic ND2 precision sound level meter and octave filter were used for detection, and the sound level meter was calibrated by the provincial sound level meter measurement and verification station; There is no sound insulation room in the ball mill workshop. The monitoring points are arranged according to the position of the ball mill and the flow of workers to observe the mechanical operation, 2m away from the sound source. One monitoring point is respectively set on the left and right of the east and west of the workshop and in the middle of the two ball mills. The measurement method is in accordance with the Noise Detection Specification for Industrial Enterprises. As the noise in the workshop is continuous and steady, sound level A is used as the evaluation basis. The rubber lining plate is manufactured by Hainan Rubber Lining Plate Factory according to the ball mill shell structure and the original manganese steel lining plate specification (1.4mx0.74mX0.07m). Guizhou Oil resistant hose First, take out the manganese steel lining plate in the ball mill barrel, and then install the rubber lining plate in the barrel in turn (front and back). Each ball mill is installed with 48 pieces. First, use the pressure strip to compress, and then use the screws to fix the rubber lining plate on the ball mill barrel, so as to prevent falling off when rotating. The noise intensity of the ball mill workshop with manganese steel liner is 94-103dB (A), while the noise intensity of the ball mill workshop with rubber liner is 87-92dB (A), and the noise reduction difference is 7-11dB (A). The rubber liner has good noise reduction effect.
Air duct mainly refers to the ventilation duct of the central air-conditioning system, which is often ignored, but it is an important part of the air-conditioning system. Guizhou Oil resistant hose What are the regulations for welding air ducts? Gongfa HVAC is a manufacturer dedicated to the production of air ducts, which has been recognized and supported by the majority of users for many years. 1、 The welding regulations of carbon steel plate air duct are as follows: 1. The carbon steel plate air duct should be welded by DC welder. Introduction to welding air duct If AC welding machine is used for welding, a vibrator must be added to reduce excitation and stabilize the arc. When welding steel plates, the arc is unstable, which can lead to deterioration of weld quality. 2. Before welding, remove the dirt, oil stain and rust at the welding port; When spot welding or continuous welding is used, the oxide shall also be removed. The butt joint shall be kept with the minimum gap, and the overlap at the manual spot welding location shall be removed in time. After welding, the electrode slag and residual welding wire in the weld and its surrounding area shall be removed in time. 2、 The welding regulations of stainless steel air duct are as follows: 1. Before welding the air duct, remove the grease and dirt in the weld area to prevent pores and sand holes in the weld. Cleaning can be carried out with gasoline, acetone, etc. When welding stainless steel plates by electric arc welding, the surfaces on both sides of the weld should be coated with white ash, Guizhou Oil resistant hose To avoid welding slag splashes adhering to the surface of the plate. 2. After welding, attention shall be paid to removing the slag at the weld, brushing the metal luster with a copper wire brush, pickling with 10% nitric acid solution, and then cleaning with hot water.
Common for ventilation duct high quality Oil resistant hose What should be paid attention to during processing: the galvanized air duct shall not be connected with s-shaped, c-shaped right angle and vertical angle plugs. Clasp type air duct shall not be used for Grade 1 to 5 clean air. The rivet spacing of air duct shall be less than 100 mm. When the air purification level is 1-5, the rivet spacing of air duct shall be less than 65 mm. Before processing the galvanized air duct, use cleaning solution to remove the oil stain and dust on the surface of the plate. The cleaning solution shall be a neutral detergent, which will not damage the board surface, and will not produce dust after drying, so it will not be harmful to human health. Clean the vent pipe with cleaning solution after fabrication. After cleaning, the electric board shall be sealed in time after the white silk cloth cleaning inspection meets the requirements. The inner wall of color coated steel pipe shall be smooth, and the coating shall not be damaged during steel plate processing. The damaged parts shall be coated with epoxy resin. The galvanized air duct seamed joints, riveted joints and flange flanged corner joints shall be sealed with sealant or other sealing measures according to the design and cleaning level requirements. The sealing materials shall be isobutyl rubber, chloroprene rubber, modified silica gel, etc. The sealing surface of the air duct plate joint shall be located at the positive pressure side of the air duct wall. The production site of galvanized air duct shall be relatively closed, and the production site shall be paved with soft materials that are not easy to produce dust. The galvanized air duct shall have fewer longitudinal joints, glass fiber reinforced plastic ventilation pipes, and no transverse joints. Oil resistant hose company The processing of connecting bolts, nuts, washers and rivets shall be galvanized or other anti-corrosion measures, and blind rivets shall not be used.
Industrial pollution is a signal of environmental protection. These industrial pollution must be environmentally friendly. These equipment and machinery, insulation air valve pollution sources and discharge routes must be applied to the pipeline. Guizhou Oil resistant hose It is just one of the rare ventilation ducts. Let's take a look at the precautions of stainless steel pipe welding process. Stainless steel welded air duct is called welding nano, which is a kind of welding nano. Since the thickness of the pipe is 0.8-5.0mm, welding is rare in the market (the thickness of the seamless pipe formed in the steel plant is 5-30mm), which is different. It can be said that it is a thin wall welding nano. As the thickness of welded pipe, the thickness of welded pipe may not be required to be the same as that of seamless welding, but only to meet the national standard of ventilation pipe, and at the same time meet the requirements of full pressure and air volume in the ventilation system. In the application environment, the thickness of stainless steel welded air duct pipes can be customized according to the requirements of the enterprise factory (the demander) to adapt to the processing of welded pipes. In short, as long as the above requirements are met, the cost of the enterprise will be lower. As long as the enterprise factory knows that it needs more air volume to customize and sell the fan, and then press the full pressure and air volume of the fan, the welding size of the stainless steel pipe can be determined. Because of the small wind resistance of round air ducts, ordinary air ducts are rarely used to connect environmental protection equipment. even if high quality Oil resistant hose The air outlet of the equipment is square or round (also called square turn). Circles, heaven and earth, cylindrical dampers and circular places are connected to fans and air ducts. In this case, the circular pipe is very good for installation.
