First, the project only consider the summer air-conditioning design, set up two screw chillers in the basement refrigerator room, each cooling capacity 440kW, power 91kw, chilled water flow 75.6m3 / h, cooling water flow: 90m3 / h. York design company selected products (unit DDC interface). Construction owners choose Daikin unit for the single screw machine. Another due to a control room and related supporting requirements 24 hours a day, another set of small air-cooled unit, the cooling capacity of 51KW, the unit placed on the ground floor for the control room and related supporting housing Provide 8 hours of work outside the cold.
Chilled water circulating pump with a prepared, flow 93.5m3 / h, power 11kw, head 28mH2O. Cooling water circulating pump with a prepared, the product model to determine the professional water supply and drainage.
Two circular cooling towers are installed on the roof, each handling 105m3 / h of water
Second, the air conditioning system The first floor conference room with a low speed variable air volume return air system, in different seasons according to indoor and outdoor air enthalpy difference control of the new air volume. The other side of the conference room on both sides of the wall to set the low-noise axial fan, excluding hot air above the meeting room.
Basement management room, ground floor control room and related supporting rooms, offices, bedrooms, small meeting rooms and other rooms with fresh air plus fan coil air conditioning system. Ceiling-mounted fresh air units set at all levels, the fresh air is treated until the enthalpy state of the air supply, indoor air-conditioning load borne by the fan coil.
Three, air-conditioning water system Air conditioning water system is a dual-control system for a variable pump variable flow: through the supply and return pipes between the pressure-setting bypass valve and the end device to set electric two-way valve to achieve quantitative cold side, load side variable flow.
Chilled water A total of A, B two stand pipe, led by the shaft to the various layers of fan coil or air handler, chilled water using two control system. Cold water temperature is 7 ℃ / 12 ℃, by the high expansion tank constant pressure replenishment.
Fourth, the mechanical ventilation system Each bedroom bathroom set exhaust fan (installed inside the ceiling), through the shaft row to the outdoors, public toilets set the exhaust fan will be dirty air discharged outdoors. Equipment room, warehouse, garage set mechanical exhaust, naturally into the wind.
7 air-conditioning controlled air-conditioning using DDC control system, designed and installed by a professional self-control company. Water system is set for the backwater differential pressure control, cold flow control and unit number and equipment operation control.
Fifth, the design experience Because the design of the construction drawings of the open office is not parted, so only reserve the total cooling capacity and determine the layers of new fan air volume, only in the decoration phase according to the decoration requirements and meet the cooling capacity premise The layout of the fan coil, water pipes, fresh air duct, tuyere and so on. The type of outlet is set as a slit outlet or a square diffuser according to the decoration needs. Therefore, if the decoration involved early, you can avoid a large number of changes to the construction drawings and decoration with less than satisfactory results appear.
In addition to controlling the wind speed of the wind pipe, the wind pipe is also equipped with a composite duct. In the air-conditioned room, the unit is muffled, and a low-noise cabinet type air conditioning unit is selected. Plenum silencer are used.
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
Judge good or bad
1. Look at the hue and surface roughness of the edge banding strip. The color of the surface of a good edge banding strip is also very important. Whether the color is close to the customized product and is gorgeous. If the surface is very rough and there are pull marks, the quality is definitely not much better. This is the surface quality of the edge banding strip. It has nothing to do with the quality of the inner material of the edge banding, mainly the production process of the edge banding factory and the production technical skills of the employees. A good edge banding strip is: the surface must be smooth, no blistering or seldom bubbling, no drawing or few drawing, moderate gloss, not too shiny or too matte (unless there are special requirements).
2. Check the flatness of the surface and bottom of the edge banding and whether the thickness is uniform, otherwise it will cause the joint between the edge band and the board, the glue line is too eye-catching or the gap between the board and the edge band is too large, which will affect the overall beauty. Details determine success or failure, and often a small detail problem may bring an embarrassing situation where the overall effect is not good.
3. Whether the edge trimming is whitish, whether the surface of the bent edge strip is severely whitish, and whether the ground color of the trimming strip is close to the surface color of the board in question. PVC Edge Banding strips are mainly made of PVC and Calcium Carbonate plus additives. If the calcium carbonate content is too high, whitening of the edge banding and bending will occur, which proves that the quality of such products is not good.
4. Whether the strength is okay and whether there is elasticity. High strength means good wear resistance, and the corresponding quality is better. Too high strength also means increased processing difficulty. Low elasticity means low wear resistance and low aging resistance. In addition, according to actual production needs, manual trimming is generally required, and soft spots can be made appropriately, and the automatic edge banding machine can make hard points appropriately.
5. Whether the adhesive is applied evenly and whether it is easy to fall off during use.
6. Smell whether the PVC edge banding strips taste or not. Products produced with good quality raw materials generally have a small taste. If the taste is too large, it means that the quality of the raw materials used in production is relatively poor.
PVC Edge Banding For Cabinet,Pvc Edge Banding,Banding For Cabinet,T Shape Pvc Edge Banding For Kitchen Cabinet
Henan Shunbang Chemical Industry CO.,Ltd , https://www.pvcresinchem.com