Fountain in the room. Drawing, description

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Fountain in the room. Children's Science Lab

Children's Science Lab

In winter, it's nice to remember how you sat in the park by the fountain on a hot summer day and enjoyed its coolness and murmur.

But even now, despite the fact that frosts are cracking, the fountain, albeit small, can be launched. Where? Yes, at home. In addition to aesthetic pleasure, there is also a practical benefit in it. Now the fountain will improve the humidity regime in your room, which will have a beneficial effect on your well-being.

To make a fountain, you will need an air compressor, which is used to supply air to the aquarium, bowl-shaped vessels, preferably transparent, a piece of hose, preferably also transparent, an empty plastic or metal bottle or jar for the receiver (Fig. 1). No more than a glass of water is required; Of course, it will have to be topped up from time to time.

In order for air to be discharged from the receiver periodically, we offer two valve options: choose the one that is easier for you to do.

Fountain in the room
Rice. 1. The device of the fountain-geyser: 1 - cover with a hole; 2 - bowl; 3 - support; 4 - hemisphere; 5 - stand; 6 - ball; 7 - crane; 8 - air collector (receiver); 9 - hose; 10 - compressor

In one embodiment, the ball (Fig. 1) seals the air supply tube into a bowl with a lid. Its weight is calculated - when the pressure in the air collector increases, the ball must open the tube, reset and close it again. In order for the ball to accurately hit the tube hole, it is placed in a hemisphere made from the cut neck of a Hershey polymer bottle. The lid, through which air escapes along with water splashes, should be slightly concave or curved (to drain water) and fit tightly to the bowl. If it is convex, a small hole is made in it to drain the liquid. The air hose can also be passed through a hole in the lid, which, for stability and to avoid distortion, rests on the bottom of the bowl with the help of supports.

The receiver can be made from a polymer vial or vial by drilling a hole in the bottom and inserting a small tube into it. The joint must be carefully sealed. We advise you to put laboratory taps on the tubes coming out of the receiver on both sides or use clamps, for example, clothespins, fixing them directly on the hose. Install the receiver above the water level.

In the second version of the valve (Fig. 2), a tube with a socket at the end is fed through the cover. A hose from the compressor is connected to the tube, and a ball of any lightweight material, say, foam, is placed under the socket. They fix it with two elastic bands or put a conical mesh on the socket, and the ball is placed under it. When the pressure in the receiver rises, the ball will release air, and then float up and close the hole.

Fountain in the room
Rice. 2. Check valve option: 1 - cover with a hole; 2 - hose; 3 - tube; 4 - gum; 5 - ball

Perhaps you will come up with your own version of the valve, for example, using a spring. But in any case, pay attention that the bowl is wide enough, and its sides rise above the lid by at least 30 mm. Then the spray will not scatter to the sides.

Author: Yu.Borisov

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