What is the best direction to install a solar water heater? What happens to the winter and summer di

Installation and management of solar water heaters.

First, the installation method.

1. The installation position of the collector. There should be no buildings and trees blocking sunlight where the collector is installed; It should not be installed on the tuyere to reduce convective heat loss; It should also not be installed in a site with a large amount of smoke and dust.

2. The installation orientation of the collector. Stationary collectors should be installed due south. If there is a requirement to be east or west in use, or if the terrain cannot meet the requirements of facing due south, the direction of the collector can be deflected to the east or west, but the deflection angle shall not exceed 15 degrees.

3. The installation height of the water tank. For natural circulation water heater systems, the water tank is required to be a certain distance higher than the collector because the size of the thermosiphon head is proportional to the density of the water and the difference between the tank and the collector.

4. Installation of circulating pipelines. The highest point of the upper circulation pipe shall not exceed the height at its interface with the water tank, so as to avoid the termination of the circulation due to air blockage. The installation of the rest of the pipelines should be based on the principle of shortening the distance and reducing the resistance, and taking into account the neatness and beauty.

5. The setting of the exhaust pipe. An exhaust pipe must be set at the top of the water tank, on the one hand, for the upper water emptying and lower water intake, and on the other hand, it is convenient for the gas discharged by the water during the heating process to be discharged from the top. The height difference between the exhaust pipe mouth and the top of the water heater tank should be less than 25 cm, otherwise the water tank will be easily damaged.

2. Management and maintenance.

1. Remove dust frequently and keep the transparent cover clean and transparent.

2. The absorption coating of the heat absorber plate has a great impact on the efficiency of the collector, and it should be repaired in time if it falls off.

3. It is best to brush the protective paint of the collector every one or two years to prevent the wood board from rotting or the iron plate from rusting.

4. Ensure the good sealing of the collector shell to prevent rain or dust from entering the collector.

5. The iron heat absorbing plate, water tank and pipeline need to be flushed regularly to prevent the deposition of rust and dirt from blocking the pipeline.

6. Replenish water in time to prevent stuffiness. In the case of flat plate water heater systems, the collector in the sweltering sun can damage the heat-absorbing coating, glass, sealing material, and protective layer due to the high temperature of the heat-absorbing plate. For vacuum tube solar water heater systems, the temperature of the vacuum tube wall under the sweltering sun is too high and it will explode when it is cold.

7. In winter, when the water heater system cannot be used normally, the water should be drained to prevent freezing and cracking. It is best to cover the collector with a layer of opaque material and avoid the sun.

15 degrees due south and west is the best angle, and the solar inclination angle is 45 degrees, but the angle of sunlight in winter is small, and some manufacturers take an inclination angle of 48 degrees in order to make the winter effect better

Upstairs said quite reasonable, the inclination angle of solar energy is related to latitude, is not fixed, the angle between the south and the ground is about 38 degrees, and the north is between 42-50 degrees.

The installation direction of solar water heaters is generally southeast, because the southeast direction is abundant. At the same time, it is also adjusted according to the zone. If a solar water heater wants to be hot, it must ensure that it has sufficient sunshine, with an elevation angle of 45-51° in the north and 5-10° in the south-west, because the afternoon sun is the most abundant.

If the installation is carried out on the roof, it is necessary to choose the direction due south, and it is necessary to ensure that there are no large trees or buildings within 120° of the water heater directly in front of it.

When installing pipelines, it is also necessary to consider the problem of heat preservation, and at the same time, the temperature should be controlled at a certain value.

The main engine of the water heater is installed on the roof of our house or in the high places on the roof, so the problem of water heater fixing is also very critical, and it must be strictly operated during installation. After choosing the direction, you should also go and check it carefully every once in a while...

The south side is generally a place where the sun's rays are relatively sufficient, so when installing, make sure that the orientation is correct to ensure that the sunshine is sufficient.

The installation of the water heater must be stable and firm, and it should be stopped when it is particularly cold, and the relevant device should be frozen and damaged, and the water in the water heater should be cleaned. Most of the tanks of solar water heaters are non-pressurized.

If it is only used in summer, it must be used again after shading the collector for one hour, the tilt angle should be the local latitude minus 10 degrees, the first time the water or the water tank is waterless for more than 15 minutes, otherwise the high temperature of up to 270 degrees will be generated due to the lack of water, and the cold water flow should be adjusted appropriately until the temperature, and the valve should be opened less when the water is on, and it is best to put on the water at night or before sunrise in the morning.

In areas with colder winters. For solar water heaters without auxiliary heating devices, the inclination angle should be the local latitude plus 10 degrees. Wind resistance mainly depends on its installation and fixation, the overflow and exhaust ports on the top of the tank must not be blocked, and the vacuum glass tube will burst due to sudden cold.

If the tap water pressure is too high, prevent the pipe from freezing and cracking.

Pay attention to the sprinkler head should not be towards the human body, it can resist the invasion of strong winds, and when you really need to put on water during the day, the water temperature of the solar water heater can reach 70 degrees, and then open the hot water valve to adjust, and you can't use water during the day. Open the chiller valve first to avoid bursting the water tank due to too late to drain the water, and install the solar water heater facing due south to be operated by professionals to avoid freezing.

The installation of solar water heaters should be operated by professionals, and the installation orientation should be due south, and its inclination angle should be equal to the local latitude. If used only in summer, the angle of inclination should be local latitude minus 10 degrees; For winter use, the inclination angle should be the local latitude plus 10 degrees. Wind resistance mainly depends on its installation and fixation, so the installation of the water heater must be stable and strong to resist the invasion of high winds.

On sunny days, the water temperature of the solar water heater can reach 70 degrees, and the hot and cold water must be adjusted when bathing. Open the cold water valve first, adjust the cold water flow appropriately, and then open the hot water valve to adjust until the temperature and flow meet the requirements. Be careful not to face the nozzle towards the human body to avoid burns.

Most of the water tanks of solar water heaters are non-pressurized structures, and the overflow and exhaust ports at the top of the water tank must not be blocked, otherwise the water tank will be broken due to excessive water pressure in the water tank. If the tap water pressure is too high, the valve should be opened less when the water is filled to avoid bursting the water tank due to the lack of time to drain the water.

In the case of a sunny day, when the water is used for the first time or the water tank is without water for more than 15 minutes, the water cannot be used during the day, otherwise the high temperature of up to 270 degrees will be generated due to the lack of water and air drying, and the vacuum glass tube will burst due to the sudden cold. It is best to use the water in the evening or before sunrise in the morning, and when you do need to do it during the day, you should cover the collector for an hour. In areas where the winter is colder, prevent pipes from freezing and cracking.

Solar water heaters without auxiliary heating devices should be deactivated when it is particularly cold, and the water in the water heater should be cleaned to avoid freezing and freezing the relevant devices.

The installation angle of the solar water heater mainly refers to the installation angle of the collector, and the direction of the collector is due south, which can be changed within 10° east or west of the due south direction to ensure that there is no sunlight and increase the sunshine time. When installing, you can first use a compass to find the position due south and mark it.

When choosing the inclination angle for installation, if it is used all year round, the inclination angle can be equal to the local latitude; If used in summer, the inclination angle is the local latitude minus 10°; If it is used in winter, the local latitude angle can be considered plus 10°, and the requirements for the inclination angle of solar water heater installation are not static.

Solar water heater by fully absorbing the sun's energy, the sun's light energy into heat energy to heat the water temperature, for the selection of solar water heater installation location, you must choose a sunny and fixed place, it is best not to be blocked by any buildings and trees in winter, generally choose balconies, roofs, roofs and other idle places.

1. Generally speaking, the square array of solar panels faces due south, and the square array can be understood as the surface of the solar panels.

2. When the angle between the vertical plane of the solar panel square and the south direction is 0 degrees, the power generation of the solar panel is the largest, and the peak time of solar radiation energy is after noon, about 12 o'clock to 1 o'clock at noon. This means that between 12 and 1 p.m., when the sun hits the surface of the solar energy at 90 degrees vertical, it is the peak time for power generation. If you deviate the solar panels to the east or west by 30 degrees due south at this optimal azimuth angle, the power generation of the solar panels will be reduced by 10% to 20% accordingly, so the azimuth angle of the solar panels is very important, and if you deviate from the azimuth angle, the power generation of the solar panels will be reduced.

We all want this angle to be the best angle of inclination when the power generation is at its highest in the year, and the power generation will vary from region to region and season to season.

1. The area of the water heater is limited, and the sunlight and the ground plane are angled, so in order to maximize the irradiated area, the solar water heater adopts the oblique installation method;

2. The solar water heater is a glass tube product, which is most afraid of hailstorms, and generally hail falls along the direction of the earth's gravity--- that is, perpendicular to the ground, and the water heater installed at an angle can reduce the attack area, and at the same time, it has the effect of reducing the force on the vertical impact.

If it is placed vertically, the area required to be placed is relatively large, and there is a water tank to store water, which is also designed for the sake of aesthetics and the fact that the area is too large.

Because of the large inclination angle and large heating area, the main heat of the solar water heater is sunshine. Therefore, the flatter the collector plate is placed, the larger the area that can be heated.

About 10 degrees more than the local latitude.

In the meantime, I wish you a prosperous and Happy New Year.

The sun's rays are obliquely rayed to the earth, and the solar vacuum tube is placed diagonally to form a direct connection with the sun, and the area of the light that absorbs the solar energy is larger and heats up faster.

Through the principle of heat rise and cold drop of water body, the automatic separation of cold and hot water body is solved.

1. Make the sunlight shine perpendicular to the energy-absorbing plane as much as possible.

2. Take the summer solstice at 12 o'clock as the sun is in the sky, the sunlight at this time does not perpendicate to the ground, the farther away from the equator, the greater the inclination, to make the energy-absorbing plane perpendicular to the sunlight (because the size of the solar energy is proportional to the unit area), and the horizontal plane to form an inclination angle to absorb more solar energy;

3. Geometric principle, the normal of the general energy-absorbing surface (perpendicular to the energy-absorbing surface) can coincide with the sun's rays at 12 o'clock at noon, and the fog influence from the virtual to the morning is best at 13 o'clock in the south.

Because the sun's rays are obliquely shining down from the south, the inclination of the solar water heater is to collect more sunlight and convert it into heat, so that the water can be hot again.

Funny, what you see is the most ordinary water heater, and the main reason why it has an inclination angle is because only if you ask for advice, the hot water can run up, and the cold water can run down, so that the circulation can heat the water in the tank. The ideal consultation is plus or minus 5 degrees from the latitude of the day, because the direct angle of solar energy at 12 o'clock at noon is the same as the latitude of the day, which can ensure that the solar light is absorbed as much as possible at noon when the sun is at its strongest.