RU2324121C1 - Water heating plant - Google Patents

Abstract

FIELD: heating system; solar water heating plant.

SUBSTANCE: method involves water heating equipment, inserted reservoir that contains solar energy absorbing float, made in form of a crater with a return tube, oriented in the direction of the reservoir bottom, tap connected to the return pipe by a rubber horse. The return pipe is made obtrusive into the crater. The crater walls are flapped, and this enables the wall cavity, on the upper part below submersion level, to communicate with the space outside the wall, while the return pipe communicates with the space outside its internal wall.

EFFECT: rising temperature and water heating speed by solar energy.

1 dwg

Description

The invention relates to the field of water heating plants using solar heat, and can be used in a warm period of time to produce heated water in the absence of other sources of energy except the sun.

A device for heating water with solar energy, containing a container with a drain tap, absorber of solar energy. (The first step from the shadows. Technology and science No. 1, 1981, p. 7). The disadvantage of this device is its high complexity, material consumption and, in addition, it takes considerable time to obtain heated water in it.

The closest in its technical essence is a water heating installation, including a tank, inside which a solar energy absorber is installed on the floats, made in the form of a funnel directed by a drain pipe to the bottom of the tank, a drain valve connected by a hose to a drain pipe (Zaychikov I.Yu., Zaichikova I.N., Kuslyaykin N.A. Solar water heater.Inform. Leaflet of the Mordovian Central Scientific Research Institute No. 47-004-02), 2002.

The disadvantage of this technical solution is that the water that replaces the warm, heated water drained through the tap has a low temperature and, falling into the funnel, falls into its lower part, without having time to heat up, where it comes from. In addition, intense convective heat transfer occurs through the wall of the forming funnel, since the material from which it is made requires good heat transfer. This causes loss of stored heat.

The technical result of the present invention is to increase the temperature and rate of heating of water with solar energy due to the isolation of the absorber of solar energy from layers of water below its loading level.

The technical result is achieved in that in a water heating installation including a tank, inside which a solar energy absorber is installed on the floats, made in the form of a funnel with a drain pipe directed towards the bottom of the tank, a tap connected by a hose to a drain pipe, the drain pipe is made protruding into the funnel , the wall of the forming funnel is hollow, while the cavity of the wall in its upper part, below the level of immersion, communicates with the space located behind the outer wall, and at the drain pipes The ki communicates with the space behind its inner wall.

The drawing shows a diagram of a water heater

The water heating installation consists of a tank 1, in which a solar energy absorber 3 is mounted on the floats 2, made in the form of a funnel 4 with a drain pipe 5, the upper edge of which extends into the funnel 4, and the lower edge is directed towards the bottom 6 of the tank 1 and connected via a hose 7 with a crane 8. The wall 9 of the forming funnel 4 is hollow and forms a cavity 10, which in the upper part, below the immersion level of the solar energy absorber 3, is communicated, for example, through openings 11 with a space located outside the outer wall 12, and in the lower part, at the drain pipe 5, it communicates with openings 13 with the space behind its inner wall 14.

Water heater works as follows.

In the warm season, solar radiation heats a solar energy absorber 3, installed in the upper layer of water located in tank 1, which, in turn, gives off heat to a limited amount of water and heats it to a temperature of 30 to 80 ° C (depending on outside air temperature and cloudiness). To eliminate the heat loss of the water heated by the solar energy absorber 3, the cavity 10 in the forming funnel is filled with a thin layer of water into the lower layers of the water in the reservoir 1, which prevents rapid heat transfer. As the consumption of water when opening the tap 8, its intake begins from its upper layers, where it has the highest temperature. Water is drawn through the drain pipe 5. As the water level in the funnel 4 of the solar energy absorber 3 decreases, water with a lower temperature comes from the tank 1. This water flows through the hole 11 of the outer wall 12 and, passing through the cavity 10, of what has a thin layer, increases its temperature due to contact with the inner wall 14 of the solar energy absorber 3 and enters through the hole 13 in this wall 14 directly to the solar energy absorber 3. The incoming water in communication so that the drain pipe 5 protrudes into the funnel 4, does not immediately fall into it, but only as it heats up and moves to the upper layers. As the water in the tank 1 decreases or fluctuates, the connection of the drain pipe 5 with a hose 7 allows the solar water heater to be in working condition with almost any amount of water in the tank.

Claims (1)

A water heater, including a tank, inside which a solar energy absorber is installed on the floats, made in the form of a funnel with a drain pipe directed towards the bottom of the tank, a tap connected by a hose to a drain pipe, characterized in that the drain pipe is made protruding inwardly into the funnel, the wall of the generatrix the funnel is hollow, while the cavity of the wall, in its upper part, below the level of immersion, communicates with the space located outside the outer wall, and at the drain pipe it communicates with of the space for its inner wall.