Filth-clearing type solar water heater

Abstract

The invention relates to a decontamination solar water heater capable of effectively exhausting scales in a collector pipe and fully utilizing water in the collector pipe, comprising a support, wherein, the collector pipe and a water tank are arranged on the support and sealedly connected with each other; an exhaust pipe is connected to the upper wall of the water tank; a blowdown water inlet and outlet opening is arranged on the intermediate tank wall of the water tank; a decontamination device is sealedly arranged inside the blowdown water inlet and outlet opening and comprises a communicating pipe and a blowdown water inlet and outlet pipe which are communicated with each other; the blowdown water inlet and outlet pipe is positioned on the central part of the communicating pipe and passes through the blowdown water inlet and outlet opening to the outside of the tank wall of the water tank; branch pipes are communicated on the communicating pipe; the lower ends of the branch pipes are sealedly provided with siphon pipes; the branch pipes are distributed on both sides of the blowdown water inlet and outlet pipe; and the lower ends of the siphon pipes are extended to the bottom of the collector pipe.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a dirt-cleaning and scale-discharging solar water heater. Background technique [0002] Now, vacuum tube solar water heaters have been widely used. This kind of product can effectively use the energy of the sun to turn cold water into hot water during use, and no additional energy consumption is required. Meet the requirements of the World Environmental Protection Organization. However, as the service life of the vacuum tube solar water heater increases, dirt will gradually accumulate in the heat collecting tubes, which will affect the heat collecting effect and water quality. When cleaning, the heat collecting tubes have to be removed one by one, which is not only time-consuming and labor-intensive, but also often causes water leakage. , and damage to the vacuum collector tube, etc. Thus, a solar water heater vacuum tube cleaning device came into being, but the biggest disadvantage of t...

AI Technical Summary

Problems solved by technology

However, as the service life of the vacuum tube solar water heater increases, dirt will gradually accumulate in the heat collecting tubes, which will affect the heat collecting effect and water quality. When cleaning, the heat collecting tubes have to be removed one by one, which is not only time-consuming and labor-intensive, but also often causes water leakage. , and damage to the vacuum collector tube, etc.

Thus, a solar water heater vacuum tube cleaning device came into being, but the biggest disadvantage of the existing solar water heater vacuum tube cleaning device is that the sewage inlet and outlet pipes are located on the side of the solar water tank, and the closer the siphon is to the sewage inlet and outlet, the stronger the suction, and the farther the suction is, the stronger the suction will be. Weak, when the water in the first heat collecting tube close to the sewage inlet and outlet is sucked dry, the water level of the last tube is still in the middle, the dirt cannot be effectively discharged, and the hot water in the tube cannot be fully utilized

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