Indoor swimming pool construction

Your company must have at least 6,543.8 billion yuan of assets, and your private account must have at least 2,000 W of available funds. The details are as follows: the structure and heating part are completed by domestic design units, and the process design and equipment supply are contracted by domestic agents; It is divided into civil engineering, installation and decoration. The following problems are easy to occur: 1. Ventilation problems Indoor swimming pools need to be heated except in summer. When water is heated, it will continuously produce steam. Poor ventilation will form condensed water, which will make the indoor temperature too high; In summer, the solar radiation through the glass roof will make the room stuffy. The above two situations will give people a sense of depression, and the indoor with poor ventilation will have a musty smell. For example, there is no ventilation facilities in the swimming pool, and the air conditioning supply cannot meet the ventilation requirements, resulting in serious condensation on the glass roof, which is like rain in serious cases. Metal mesh paint is discolored and partially rusted; Wood decoration is damp, deformed and rotted; The plastic coating on the aluminum ceiling began to peel off, and it was covered with mildew spots at ordinary times. The ideal way is: 1. Set up mechanical exhaust device, but the fan should be low noise, the air volume should not be too large, and it can be considered to be turned on frequently during operation. 2. Air supply with air conditioner: The air conditioner of the swimming pool should be set separately to avoid affecting other areas, and the air conditioner should mainly send fresh air. 3. The temperature of pool water should not exceed 30℃, and hot air conditioning should be used to increase indoor warmth in winter; In addition, because swimmers usually concentrate in the afternoon and evening, there is no need for continuous heating. Second, there are many pipes in swimming pools, so we should treat them differently. At present, there are two kinds of ideal pipelines. One is thin-walled copper pipe, which is reliable in welding, and the inner wall of water quality stable pipe is not easy to scale, but the cost is high; The other is UPVC pipe, which is light in weight and convenient in construction. The disadvantage is that the interface is not temperature-resistant, and the heating system should have a reliable temperature control device. If the circulating filtration system with high water pressure uses copper pipes, the rest use UPVC pipes. If the swimming pool is on the floor, it is safer to use metal pipes. UPVC pipe must have reliable support; Otherwise, it will shake when it is pressed. Third, decorative materials Due to the high indoor humidity in the swimming pool, all kinds of decorative materials should be carefully selected. Light marble or glazed tiles should be used for walls, and no paint or coating should be used. Non-slip floor tiles should be used on the ground, and granite should not be used; The ceiling should be made of aluminum plate or aluminum-plastic plate to avoid wooden materials. The design of roof grid should consider two points: first, the grid should be convenient for future anti-corrosion treatment, and stainless steel grid can be used for high-end swimming pools; Second, the grid glass should be able to be cleaned, especially the buildings along the expressway. Large areas of glass are very easy to accumulate dust. Stainless steel products should be used for the underwater parts and the entrances and exits of ladders; Plastic grille is commonly used in overflow ditch cover plate, but it is difficult to clean. Fourth, the bottom of the pool is dirty. Because the bottom slope and circulating suction are very limited, it is very obvious to deposit dirt for more than three days. There are many ways to clean the bottom of the pool: if you move it to the suction port with a brush, this method is simple, but the effect is not good, because the brush will disturb the sediment; Siphon or pumping is also used to clean sewage. This method needs to push the suction tray in the pool, which is inconvenient to operate and has a large water loss in the pool. It is ideal to use circulation system and sewage suction head to realize sewage suction at the bottom of the pool. The advantages of this method are that the existing system is used and there are few additional equipment; Secondly, the suction device, hose and push rod are all plastic products, so the operation is very light; In addition, the sewage at the bottom of the pool is effectively intercepted in the sand pool, with good effect; However, the following points should be paid attention to when designing: 1. The sewage suction port should be set at the upper part of the pool wall for easy connection. 2. Suction ports should be evenly distributed and should not be too much; Otherwise, the suction is insufficient; Generally, the indoor pool should meet the requirements of two suction devices working at the same time, and four suction ports can be arranged diagonally. 3. The sewage suction loop and the pipeline before the pump of the main circulation system should be set separately and can be controlled independently, and the main drainage pipe can be closed when the sewage is sucked; Otherwise, the suction is insufficient. 4. The hose should be soft; Otherwise, it is very difficult to move in the pool, and a soft diameter of 50mm is enough. Five, water injection, emptying the side wall of the swimming pool, the bottom plate is generally decorated with blue bricks. The joints of these tiles will scale over time, which is difficult to remove and needs to be emptied regularly. There is a time problem of emptying and adding water. The following points should be noted: 1. Water supply should be sufficient, and water supply pipes should be laid separately. When combined with other systems, it should be considered that other systems will not be cut off because of adding water to the swimming pool. 2. Ventilation should be rapid: the ventilation pipe should rotate as little as possible. The water in the swimming pool should flow directly into the sewer and then be reused. 6. Water quality: 1. Urban tap water can't meet the water quality standard of swimming pool and needs further treatment. Practice shows that alum treatment is not ideal. First, it takes a long time to precipitate. Second, there are many sediments; The effect of refined aluminum sulfate is much better. 2. Need to inject a certain proportion of new water every day; Otherwise, even if chemicals such as copper sulfate are often added, the water will still turn green after a period of time, and the pond wall will breed moss. 3. The flooded swimming pool is better, the water level is controlled by the balance tank, and a part of surface water often overflows. Because the water surface contains a small amount of oil, a black belt will be formed at the top of the pool wall along the periphery of the water surface in a non-submerged swimming pool. 4. Disinfectant should adopt mature and simple process. 5. The water treatment circulation system should ensure a certain flow; Otherwise, the treatment effect is poor, and the dead angle is easy to appear in the pool, which will also affect the heating speed. 6. All-water type all-water type VII. The sand cylinder at the entrance of the sand cylinder is made of carbon steel, cast iron, glass fiber reinforced plastic and other different materials. Also pay attention to the selection: 1. The operation of the multi-way valve should be simple. Generally, the working state can be changed by pressing the handle to rotate 180 degrees. 2. The multi-way valve should be sealed reliably, that is, there can be no leakage under normal working conditions, and the imported products also have quality differences. 3. Pressure gauges are installed at the inlet and outlet to grasp the backwashing opportunity. 4. The upper part of the sand cylinder should have manhole and Gaza. 5. Valves should be added to facilitate the maintenance of water inlet and outlet pipelines. 6. The sandbox does not need to be considered for standby. 7. The backwashing pressure of sand cylinder must be ensured. Eight, the heating indoor entertainment pool capacity will not be very large, and it can generally be maintained at around 25℃ in an air-conditioned environment, so the heating capacity does not need to be too large, just use a fast heat exchanger. IX. Others 1. Before laying decorative materials in the swimming pool, embedded parts such as water inlet, water outlet and swimming pool lights. The pool should be installed in place, and then filled with water for pressure test, so that the pool structure is watertight; Otherwise, once leakage is found after completion, it will be very difficult to deal with it. 2. The pool lamp is generally at 1/2 of the height of the pool wall; The quality of pool lamp should be reliable; It is feasible to replace the pool lamp only after the water is drained. 3. There are many pipes around the exterior wall of the swimming pool, which are generally located in the lower ceiling after renovation. When designing, it should be considered to leave a maintenance passage and a certain space height in the ceiling. 4. The overflow pipe of the balance water tank should not be connected with the backwashing discharge pipe. 5. Coagulant should be added to the water pump suction pipe. 6. The cooperation between overflow port and pipeline should be reasonable; Otherwise the overflow will be accompanied by a scream. 7. Layout of the deep end of the swimming pool near the machine room.