Table of Contents
- 1 How do you create an intake well?
- 2 What is an intake in a water supply system?
- 3 What is the intake structure in water treatment project?
- 4 What is an intake chamber?
- 5 What is the design discharge for intake structures?
- 6 What is the difference between a dry and a wet intake structure?
- 7 What is the purpose of water intake structure?
- 8 What structures are required for an offshore water intake facility?
How do you create an intake well?
An intake should be designed and constructed on the basis of the following points: (i) Sufficient factor of safety should be taken so that intake work can resist external forces caused by heavy waves and currents, impact of floating and submerged bodies and ice pressures etc.
What are the intake structure?
An intake structure is a transition through which flow is diverted from a source, such as a river, reservoir or the ocean, into a conduit, which may be a canal or a pipe.
What is an intake in a water supply system?
Intakes are the structures used for admitting water from the surface sources (i.e., river, reservoir or lake) and conveying it further to the treatment plant. Its main purpose is to provide calm and still water conditions, so that comparatively purer water may be collected from the source.
What are the key requirements of intake structures?
– The intake structure must not narrow the cross-section of flow of the channel; otherwise, at peak discharges, the bottom erosion in the area of the intake structure in the river bed would be increased, which in turn results in a change of the water level.
What is the intake structure in water treatment project?
Intake structures are used for collecting water from the surface sources such as river, lake, and reservoir and conveying it further to the water treatment plant. These structures are masonry or concrete structures and provides relatively clean water, free from pollution, sand and objectionable floating material.
Why are intake structures required?
The basic function of the intake structure is to help in safely withdrawing water from the source over predetermined pool levels and then to discharge this water into the withdrawal conduit (normally called intake conduit), through which it flows up to water treatment plant.
What is an intake chamber?
The intake chamber is often referred to as a pump sump. It is a collecting chamber situated directly upstream of a centrifugal pump, through which the fluid handled, usually water, flows towards the pump.
What is the function of intake structure?
What is the design discharge for intake structures?
14. What is the design discharge for intake structures? Explanation: Intake structures and the pipe mains that carry water from intake structures to treatment plant are designed for maximum daily demand. 15.
What is the intake structure in water treatment projects?
What is the difference between a dry and a wet intake structure?
The essential difference between a dry intake and wet intake is that in a wet intake the water enters from the entry ports in to the intake and then it enters in to the conduit pipe through separate gate controlled openings whereas in a dry intake water is directly drawn in to the withdrawal pipe through the gate entry …
What is the purpose of intake water?
The main purpose of an intake is to ensure a constant water supply that can be adjusted to suit local conditions.
What is the purpose of water intake structure?
The water intake structure is used to get water from the reservoir and deliver it through a special channel called penstock to the hydroturbines. Water intake is usually equipped with a gate system used for water flow control and maintenance purposes.
What is an irrigation canal intake structure?
Canal Intake Structures. In some cases, source of water supply to a small town may be an irrigation canal passing nearer or through the town. Then it will be constructed. Generally it consists of masonry or concrete intake chamber of rectangular shape, admitting water through a coarse screen.
What structures are required for an offshore water intake facility?
The offshore intake structure will need to be connected to the onshore facilities by a tunnel, pipeline or culvert to transfer the water to the remaining intake facilities located onshore. The structures required will include: offshore velocity cap intake including coarse screens; pipeline (or tunnel or culvert) to connect to onshore facilities;
Which type of intake is used for collecting water from lakes?
(d) Canal Intake. For obtaining water from lakes mostly submersible intakes are used. Fig. 7.1 shows a typical submersible type of intake used for collecting water from the lakes. These intakes are constructed in the bed of the lake below the slow water level so as to draw water in dry season also.