The beneficial effects of using low dams instead of high dams in the construction of hydroelectric power plants are: less engineering volume, fewer submerged areas, less resettlement difficulties, a period of short construction and low cost;
Uses for the construction of hydroelectric power stations The adverse effects of using a low dam instead of a high dam are: small storage capacity, low capacity to regulate floods, low electricity production and low guarantee of efficient electricity production time.
The beneficial effects of using high dams in the construction of hydroelectric power plants are: large storage capacity, strong ability to regulate floods, high energy production and guarantee rate high time efficient electricity production;
p>The disadvantages of using gr damsande height in hydropower plant construction The impact is: large project volume, large submerged area, difficult resettlement, long construction period, high cost, difficult design, great threat to downstream and high geological requirements at the level of the dam site.
Detailed information:
Precautions for the construction of a hydroelectric power station:
1. Generally, water should be routed from the top and not from the ground. Cold and hot water outlets must be horizontal. Generally, the left side is hot and the right side is cold. Pipes must be laid horizontally and straight. . The orientation of the development must be safe and reasonable. The position of the clamp and the slope of the pipe must comply with the requirements of the specifications. All types of valves must be installed in correct positions and level pto facilitate their use and maintenance.
2. The water inlet must be equipped with an interior main valve. Before installation, water pipes and connection accessories should be checked for damage, blisters, cracks, etc.
3. The water meter should be installed in a convenient place for reading. The distance between the water meter and the wall valves should be appropriate and should be convenient for use and maintenance.
4. If you are installing a water softener, water purifier, kitchen appliance, etc. in the kitchen, you should consider leaving the water supply and drainage locations as well as the electrical supply location in advance.
5. The left and right positions of the shower mixer are correct and installed in the middle of the bathtub (determine the size of the bathtub first. The height is 150-200mm above the middle of the bathtubD). bathtub. The outlet of the massage bathtub is reserved depending on the model. The distance between the holes of the mixer is generally kept at 150 mm (for built-in installation) and 100 mm (for surface installation). The location of the water outlet of the connecting rod shower should be determined according to the height of the room and the situation. personal needs of the owner.
6. Try to place the water inlet and outlet of the toilet in a place where the view can be blocked by the toilet. For one-piece toilets, the location of the water outlet must be determined according to the model. Generally, it should be left 200mm to the left of the center of the toilet drain outlet.
7. Electric water heaters generally must be attached to load-bearing walls. In special circumstances, fixed brackets should be used to fix them on non-load-bearing walls, and there should be enough of them. spacee on the top floor for fixed supports. The editor recommends setting them in advance. Contact the water heater manufacturer to determine the location of the water heater outlet.
8. When installing the water inlet and outlet of the water heater, the water inlet valve and air inlet valve should be considered and installed in the corresponding positions.
9. When installing kitchen and bathroom pipes, the size of the pipes as they exit the wall should take into account the final size after sticking the wall tiles, that is, the thickness wall tiles should be considered in advance.
10. When designing water pipes, the installation location of the washing machine faucet and the arrangement of the drain should be considered. Also pay attention to whether the location of the power outlet is appropriate. When placing a drum washing machinein a kitchen cabinet, be sure to determine the size of the washing machine and kitchen cabinets so that the water supply and drain locations are properly reserved.