Plastic push
The importance of building energy efficiency has been widely known. Save energy is to reduce the loss of energy is invalid, improve energy efficiency, so that the limited energy fully to the service of humanity's production and life.
Then, sliding sash and casement window compared to what is the difference? We will agree to say that push-pull ventilation area is small, poor air tightness.
The ventilation area, the window dimensions to determine, the ventilation area determined by the size of the open sash, while the horizontal and vertical sliding sash window sash dip in the window frames must be done within a horizontal or vertical movement, to complete the switching process, sash moving within the window frame stroke, always less than the window frame width or height of 1 / 2 sliding window is fully open state, are bound to half is turned off, the ventilation area is never more than 50%, which is push-pull structure of the decision. Of course, if a multi-slide profile, ventilated area would be greater than 50%, but will never reach 100% of ventilation, so this problem is not the study necessary.
On air tightness, because push-pull fans in the open and closed, box and fan of the relative motion of both wheels rolling again tops and profiles of rubbing, friction, the greater the gap Seal for instructions more closely sealed The more closely the opening and closing casement greater force, to ensure operation force, would have to reduce the sealing tightness, also bound to lead to decreased air tightness is not conducive to energy conservation. Characterization of gas-tight doors and windows and from units of measurement indicators to analyze air tightness of the good or bad, that is, the amount of air infiltration volume, based on per meter length of the door gap, the volume of air per hour infiltration defined. Measuring the air permeability of doors and windows, is the standard temperature and standard pressure conditions inside and outside, with air flow meter measured the window the whole door frames within an hour of air infiltration volume, divided by the door frames overlap window box fan The total length of the gap is the tightness of the door frames windows index.
The existing plastic push-pull, in particular residential building in the sliding window, the hole widths are 1200-1800 mm, hole height 1400-1500 mm, made of double-fan push-pull, whether fan or opening left open the right fan, the total There a is turned off, the total length of lapped joints box fan = height × 3 + width × 2. Since there is always one is turned off, why not put it into fixed it? If you made a push and pull a fixed, can reduce 42% of the total length of gaps, then it can make windows and doors of air infiltration losses from 23.1% to 13.4%, and can save materials and working hours, lower costs, and improving economic efficiency and social benefits.
Plastic sliding window in order to improve the structure, improving energy levels, the following three design options for discussion, or choice, this temporary structure called a fixed sliding sash windows.
Option One: Room outside the window fixed windows, interior side of the sliding window, hanging yarn fan mounted outdoors.
The main features of the window: First, improve the energy level of 9.7%. A box fan by reducing 42% of the total length of gaps, that is, the windows of air infiltration losses from 23.1% to 13.4%, not only reduces energy loss and improve the room environment. Second, to improve the water tightness. Push-pull fan corresponding with the roots can slide through the drainage hole drilling and milling level, no need for drainage cavity, not only the drainage hole processing technology is simple, and no matter what the size of the drainage hole does not reduce air tightness; in the window frames and vertical club directly on the inlay of glass, not only a good air tightness and window frames to prevent the rain into the inside of this opportunity. Third, the screens do not use yarn fan daughter card installed in the outside room window frames, window screen frame distortion, surrounded by close to the window frame on a very tight, and avoid switching push-pull fan must switch yarn fan, the mosquitoes into the room opportunities. Fourth, the glass bead fixed fan must be installed outside the room, although not easy future maintenance and replacement of glass, but benefits the watertight and decorative. Fifth, to save materials and reduce costs. If the fixed sliding window profiles used in the weight per meter and the current push-pull exactly the same, then the window sash profiles can save 50%, minus the increase in transom windows profiles, profiles can save sash 1 / 3. To 1000 mm × 1000 mm dual fan push-pull, for example, if the per meter length of the profiles calculated by 0.9 kg, 1.8 kg material savings, as a general profile market prices, can save more than 20 yuan, and then save the two pulleys, window cost per square meter, about 25 yuan equivalent to about 10% of the current selling price. Sixth, this structure can be made of two push-pull fan in the middle, pushed to the sides, the room will appear more spacious and bright.
Option Two: Push-pull fan on the outside room, a fixed indoor side of the fan, fan inside the flat yarn open.
The main window features: First, improve the air tightness and water tight program and a similar program. Second, in the interior side of glass bead for easy future maintenance and replacement glass. Third, push-pull fan to be mounted with a dark handle with bolt, the installation process is too much trouble. Fourth, when the switch push-pull fan, you must first open the fan inside the flat open yarn, mosquitoes can take advantage of the house.
Option Three: the chamber window frame above the slide have a lateral wing, the wing inlay fixed fan of glass and screens, sliding fan inside the side, glass bead also indoors.
The main features of the window: First, to improve the air tightness and water tightness of the results with a similar program. Second, the glass bead in the room, easy to install, also in line with practice. Third, because the outside window frame profiles room above the indoor side of the slide flange, so it should be opened through the drainage hole bigger so as to avoid water overflow into the interior. However, no matter how much drainage hole open, it will not reduce the air tightness.
Program 1 and program the feasibility of the three programs is stronger than the second, but the sliding window of three programs to improve energy-saving effect is the same.
A window on the door frames both fixed there are push and pull, push-pull fan location determined by the designer. However, users can also use their own needs free exchange about the direction of push-pull fans.
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