For the purification of air conditioning in the ventilation pipe to withstand the wind pressure than ordinary air-conditioning increased exponentially, so we can not fail to attach importance.

    First, the review of China's large-scale air-conditioning industry is the development of large-scale development from the last century, the mid-seventies began, "clean air conditioning, at the time for most people is a new topic, we attach great importance, of course, in engineering applications , Air duct also attaches great importance to; for the cleanliness of the pipeline itself, air tightness to mention very high, because the purification of air conditioning in the ventilation pipe to bear the wind pressure than ordinary air conditioning doubled, so we can not ignore; Cleanliness, operating power and noise, etc. At that time, due to the underdevelopment of the base material, so the choice of materials (such as air pressure, air flow, air flow and so on), the air flow of the pipe, the cleanliness of the pipeline directly affect the entire purification system, (At that time, most of the general air-conditioning production of black steel pipe.) As the master of the enthusiasm of workers, a strong sense of responsibility, technology is also a high-level , Their production of pipes, such as seams, flanges and other parts of the connection to do a good air tightness, the protective layer is also done very rules.

    Unfortunately, the air conditioning ventilation pipe, still today still use steel and zinc steel seams production, angle flange connection, and the quality of the pipeline can not be guaranteed sometimes, as some of the survey report pointed out : If the seams do not deal with the seam, the air leakage of more than 50%, the most air leakage also 13%, which is running a great waste, but in the actual project, how many construction units seriously To deal with this seam it?

    Second, the quality of how to ensure the quality of the pipeline can not be guaranteed examples, but also gave us a question: in the general view that scientific and technological progress today, why the more serious quality problems will exist? This requires us to this The problem has to be analyzed in a way. The progress of this technology is mainly manifested in the progress of materials, the progress of machines, equipment and tools. In the machinery, equipment, tools, progress, with simple tools by pure manual labor skills may not have progressed, and the economy for the purpose of the workers may not enhance their sense of responsibility; with such an analysis, we are not difficult to judge, the quality Most of the problems in the absence of advanced machinery and equipment, advanced technology assurance, and the manual-based company. This means that in order to obtain high-performance and stable quality assurance, it must be from the pipeline production mechanization, mold of the start, we must proceed from the standardization process, to try to stay away from pure manual for the operation.

   Third, the progress of the material - the scientific and technological achievements should be reflected in the pipeline: the progress of materials is an important aspect of scientific and technological progress. Material progress also directly affects the progress of the way of operation, but also directly affect the stability of product quality. This air-conditioning for our ventilation pipe, it should follow this rule. I mentioned in front: from the cold air-conditioning industry, the initial shock to the present nearly three decades, and clean air conditioning with ventilation pipes are basically stuck in the original raw materials on the basis of technology, which can not be regarded as a regret. In the production of steel and zinc steel ducts, large companies use the mechanized production is no longer a problem (the seam of the seam is another matter), but the insulation process is so cumbersome, the installation of workers so tired, and the quality is not easy To ensure that the status quo is still not resolved.

  In recent years, the emergence of a new insulation materials, rubber and plastic materials to reduce the labor intensity of workers can still not be able to get rid of its backward mode of work, Moreover, this material is currently more expensive, can not be widely used. Over the past few years.In general air conditioning, fiberglass duct, FRP duct and the import of some composite duct has been applied, it should be said that the emergence of composite duct in the ventilation pipe industry is an improvement. Of course, these types of materials in the form, nature and processing technology are not suitable for purification engineering requirements .Therefore, in the purification project did not make the earthquake, but in any case, the composite material in the air duct industry is a progress, Is a kind of earthquake, composite material is a worldwide trend, it can be said that industrial progress is inevitable! Therefore, clean air conditioning ventilation ducts should also use composite materials.

    Fourth, the composite material duct has the following advantages: composite materials and accessories will be used to solve the traditional problems of the duct:

    1, insulation Q-pass In the traditional duct construction, the insulation process is the most difficult, but also the most boring, so the quality of insulation is also the most difficult to guarantee, because it is directly affected by the emotional workers, sense of responsibility and technical proficiency The impact of complex ventilation duct surface and the insulation layer is a bonding pressure formed, so the pipe is made, do not need to do insulation. This easily solves this insulation problem, and, due to the removal of insulation process, saving a lot of man-hours, thereby greatly reducing the cost of labor in the pipeline cost.

    2. Air tightness of the traditional steel pipe is to seize the mouth molding, pipe ends riveted angle flanges, pipe leakage, generally occurs in these three parts - the intersection line - plate and the flange of the Department, the flange And the flange. Composite duct of these joints than the steel duct is much better, of course, much better air tightness, which is completely changed the processing technology. Composite duct pipe is to bind the main bonding, adhesive instead of seams seam seam, and the bonding material in the joints of a wide interface, and for the flexible combination of steel plate seams seam material contact Surface is relatively narrow, relatively speaking for the rigid joint, (of course there are plastic deformation components.) Therefore, the degree of air tightness can be imagined. Composite duct with slot-type closed flange (to be described in detail), making the end of the composite air duct more secure.

    3. Vibration problems Pipeline vibration, according to their own reasons, mainly due to the rigidity of the pipe caused by zinc steel pipe in the cutting, the process of seizing, and sometimes there will be "meat and less meat" phenomenon, look from the pipe surface , The surface uneven, or concave into a piece, or highlight a piece in the system is running, especially in the fan is turned on, will have the sound of Gu Guolong lungs, like drums, the sound system muffler is not good Elimination, the main group is the galvanized steel sheet is not good rigidity and cutting processing size is not accurate. Composite materials can solve this problem, the fundamental reason is that the composite material is rigid, in the cutting, bonding process does not appear in the material or pipe surface concave, protruding phenomenon, which eliminates the internal causes of the earthquake. Composite materials also have advantages in shock absorption, because the ventilation surface of the pipe and the insulation layer is a one-time bond pressure formed, and insulation materials are generally flexible, it will have a vibration of the ventilation surface to play the shock absorption, Absorption of the role. The use of composite materials makes it possible to mechanically form the ductwork, which will greatly improve the overall quality of the duct.

    4, the status of composite duct to start using composite duct Currently Tsuen this there are two: fiberglass duct and insulation with glass fiber reinforced plastic duct (Bolui steel itself is not a composite material).

There are two kinds of imported air ducts.One is the United States of glass fiber duct, one is the Italian polyurethane composite duct, the composite surface of the wind food are aluminum foil, their common is a good degree of voltage Strength is not good, due to various reasons, these ducts, in the actual clean engineering is relatively rare.

    Six, the emerging double-sided color composite duct Now we can introduce a compound for the purification of air duct - double color composite duct as the name implies. Double-sided color composite duct is the surface of the two color steel Aluminum composite panels produced by the air duct, the middle composite insulation material can be flame-retardant polystyrene, can be polyurethane board, it can be glass fiber. This composite duct has the following characteristics:

    1, although the board is the first time in the production of ducts, but the production of this material has been quite common.Process has been quite mature, the quality is guaranteed, adequate supply, there is room for selection of parity;

    2, the composite plate of good rigidity, and the surface strength is the strength of the steel plate, due to the characteristics of the composite plate in the production of large diameter ducts, or for high-pressure air cooling systems, Generally do not need to do special reinforcement ribs protection, which makes the whole duct network clean and neat; the same time, the production and installation of air duct work, time-saving materials, so that the relative cost reduction;

    3, the production of air duct, the surface is smooth, and does not produce dust, do not stick dust, especially for clean engineering. Surface of the steel-plastic layer, the corrosion resistance, corrosion resistance is much better than steel zinc steel, Due to good weather resistance, high temperature and humidity in the environment, and even in the open-air installation is also much better than other pipelines, by the sub-surface smooth and beautiful, giving a sense of luxury, it is particularly suitable for the occasion of the pipeline installation:

    4, the production of composite ducts need to be mechanized, which makes the accuracy of pipe size and related quality assurance, so that the same size of the pipe interchangeability. Production efficiency. This means that the total price of the duct . Labor cost ratio will be greatly reduced, the construction side of the investment in the wind will be more affordable:

    5, color composite duct will be accompanied by PVC closed groove flanges, so that the combination of pipe and flange more closely, the flange connection surface with a ring seal structure groove, which placed a flexible strip, so that pipe and The air tightness of the pipe connection is ensured;

    6, PYC slot closed flange connection for the card connection, construction is simple, fast, labor-saving, saving installation space, especially for small space occasions to install;

    7, PVC flange use, not only to achieve the mechanization of flange production, process standardization, and completely solve the pipeline in the "cold bridge" problem.

    8, double-sided color composite plate can also serve as the valve box, matched with PVC flange, to solve the problem of re-insulation of the original refractory valve, so that the entire pipeline system, all color plate.