What is the basic structure of a solar water heater?

Introduction What is the basic structure of a solar water heater? Solar water heaters are composed of vacuum collector tubes, insulated stainless steel water tanks, brackets, connecting pipes, etc. 1. The vacuum collector tube collector is

What is the basic structure of a solar water heater?

Solar water heaters are composed of vacuum collector tubes, insulated stainless steel water tanks, brackets, connecting pipes, etc.

1. Vacuum collector tube

The collector is the heat collecting element of the system. Its function is equivalent to the electric heating tube of the electric water heater. Unlike electric water heaters and gas water heaters, solar collectors use radiant heat from the sun, so the heating time can only be when the sun is shining. “All-glass solar collector vacuum tubes are currently popular in the Chinese market. The structure is divided into outer tube, inner tube, selective absorption coating, getter, stainless steel clip, vacuum sandwich and other parts.

2. Insulated water tank

An insulated water tank is a container for storing water'Hot water. Since solar water heaters can only work during the day and people usually use hot water at night, the hot water produced by the collector during the day must be stored in an insulated water tank. The volume is the total amount of hot water used each night.

3. Bracket

The solar water heater bracket is the supporting member of the solar water tank and an important part of the solar water heater.

4. Connecting pipes

The pipes that carry hot water from the collector to the insulated water tank and carry cold water from the insulated water tank to the Collectors are connected to the pipes to that the entire system forms a closed loop.

Is it reasonable not to install brackets on the thermal conductive plates of solar water heaters

Solar water heaters are generally installedled by manufacturers or professionals. at the same time, understand the impact of solar water heater installation technology on dry. It is very necessary to operate it yourself or supervise the installer.

1. Assemble the stand. Assemble the front bracket first, use bolts to connect the horizontal frame and the mullion frame of the front bracket, then install the tailstock on the mullion connection hole of the front bracket, then assemble the bracket rear if there is one. middle frame, add a middle frame at this time, and it should be on the same plane as the left and right frames respectively and touch the ground at three points at the same time, then use connecting rods to connect the front and rear supports , and connect the barrel bracket and the front and rear brackets with bolts, and finally put on the iron shoes. After assembly, make sure the rear support mullions are perpendiculars on the ground.

2. Install the water tank and suction hose. First place the water tank on the assembled bracket and bucket bracket, connect the water tank and bucket bracket with bolts, and tighten the connection nuts between the bracket and the bracket bucket so that the distance between the two ends of the water tank and the left and right ends of the bracket are equal, and the center line of the vacuum tube is equal to. Make the plane of the front bracket parallel, then place the silicone seal ring into the flange hole of the inner body and lay it flat on the upper end of the vacuum tube, apply water to the upper end of the vacuum tube, push it into the inner body with even force, then gently pull it down and into the tail. stock, firmly against the inner rubber pad on the annular surface of the tailstock, and fin Tighten the nuts on the connecting bolts, then push the dust ring up to stick to the vacuum tube hole. At this point, the solar water heater host is assembled.

3. Host repair. After the main unit is assembled, place the steel cables or large steel bars on the left and right frames of the front bracket and the left and right U-shaped rings of the barrel bracket, tighten them with nuts, and stretch the four connected steel cables or steel bars to the four corners of the water heater. Select a suitable location on the parapet or other places, drill holes for the expansion hooks, and securely connect the steel cable or steel bar to the corresponding expansion. hooks with U-shaped rings. If there is no suitable location, you can pour reinforced concrete blocks to fix it. If you install a solar water heater on a pointed roof, the sikilling is a little more complicated. You must create a specific support, choose a solid and suitable one. attachment method and location, and add padding to the ridge where the wire cable is pulled to avoid hitting or crushing the roof ridge.

4. Common sense installation. Solar water heaters must be installed and transported with care. The main body of the water heater should face the sun, without any obstructions on the left and right sides, front and top. The exhaust port on the upper part of the water tank should not be blocked to avoid water swelling or deflation. tank due to poor exhaust; the outer pipeline should be as short as possible, preferably made of aluminum plastic. Composite pipes or PVC reinforced pipes, exterior pipes and exhaust overflow pipes in winter must first be covered with tuyal rubber-plastic insulation materials, then insulated with thicker polystyrene materials to prevent water freezing, which could cause the hot and cold water to flow up and down or even swell the water storage tank . If the pipeline does not pass through the flue and exit the building, the pipeline should be fixed on the side wall of the building to ensure safety and aesthetics. When connecting the pipe fittings to the water heater faucet, use a wrench or pipe wrench. To tighten the faucet before connecting other pipe fittings.

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Unreasonable.

Be exposed to wind, sun and rain. From a safety perspective, strong winds are likely to present safety risks, so they need to be secured. There are many ways to repair it, such as pulling metal cables, drilling expansion screws, welding brackets, etc.

The working principle of solar water heater: sunlight passes through the first glass layer of the heat-absorbing tube and shines on the black heat-absorbing layer of the second glass layer, absorbing the heat from solar energy. It is vacuum insulated, so heat transfer will be significantly reduced (radiation heat transfer still exists, but there is no thermal conduction or thermal convection). , causing the water in the glass tube to heat up. The water becomes lighter and enters the insulated water storage bucket along the surheating face of the glass tube. The relatively low temperature water in the bucket enters the glass tube along the backlight surface of the glass tube. glass tube for refilling. This continuous cycle keeps the water in the insulated water storage bucket, thus obtaining hot water. Purpose.

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