Water tank floor type bottomless vacuum tube solar water heater

Abstract

The invention discloses a water tank floor type bottomless vacuum tube solar water heater, which can be widely applied to household and solar heating engineering, and comprises a bottomless vacuum tube heat collector and a floor type insulation water tank; through natural circulation or forced circulation, the solar energy absorbed by the bottomless vacuum tube can be introduced into the insulation water tank. A water tank floor type water heater comprises an indirect natural circulation water heater, a direct natural circulation water heater, an indirect forced circulation water-heating tank and a direct forced circulation water heater, which can be suitable for different users and occasions. The water tank floor type bottomless vacuum tube solar water heater has the advantages that: the volume of the single water tank and the thermal-arrest area are large, the application range is wide, and low-temperature safe heating can be conducted by the heat collector; the water heater is anti-freezing, and water temperature can be adjusted; indirect circulation thermal collecting is not power-consuming; the insulation water tank is communicated with a hot water output pipe, and the volume of the water tank of the water heater and the thermal-arrest area can be multiplied; thereby, a water heating system of which the thermal-arrest area is in any scales within thousands of square meters and the cycling power collecting is not power-consuming can be formed.

Description

technical field [0001] The invention is a floor-standing water tank indirect / direct natural circulation / forced circulation general-purpose liquid pipe vacuum pipe water heater and hot water system in the field of solar heat collection that can be widely used in households and solar hot water projects. Background technique [0002] At present, the main problems of solar water heaters and hot water systems are: [0003] 1. Whether it is an all-glass vacuum tube water heater, a heat pipe vacuum tube water heater, or a U-tube vacuum tube water heater, the heat collecting tubes used are all glass vacuum tubes with an upper end opening and a lower end blind hole. The heat absorbed by the vacuum tube can only be from the open end of the vacuum tube on the upper part of the collector. It is derived that the bottom of the water heater tank must be higher than the opening end of the vacuum tube to collect heat in natural circulation. The water tank of the conjoined and split natural c...

AI Technical Summary

Problems solved by technology

[0003] 1. Whether it is an all-glass vacuum tube water heater, a heat pipe vacuum tube water heater, or a U-tube vacuum tube water heater, the heat collecting tubes used are all glass vacuum tubes with an upper end opening and a lower end blind hole. The heat absorbed by the vacuum tube can only be from the open end of the vacuum tube on the upper part of the collector. It is derived that the bottom of the water heater tank must be higher than the opening end of the vacuum tube to collect heat in natural circulation. The water tank of the conjoined and split natural circulation water heaters is higher than the collector. Because the position of the split water tank is too high, there is no practicality and comprehensive advantages, so Except for split wall-mounted water heaters in the market, almost all domestic water heaters are one-piece slope water heaters. However, the volume and heat collection area of ​​one-piece water heaters are limited by the length and diameter of the water tank and vacuum tubes, so they cannot be enlarged, and there are many difficult problems. problems, unable to meet the various water and safe water requirements of users

[0004] 2. The water heater and hot water system composed of all-glass vacuum tubes, the hot water in the vacuum tubes accounts for about 25% of the water tank volume cannot be used, the vacuum tubes are easy to freeze and crack, and the water heater and hot water system cannot operate due to the rupture of the vacuum tubes; it is composed of heat pipes and vacuum tubes For water heaters and hot water systems, the heat loss of heat pipes is large, the efficiency is low, the service life is short, and the price is extremely high; for water heaters composed of U-shaped tubes and vacuum tubes, the length of the U-shaped tube is about twice the length of the vacuum tube, and the diameter of the U-shaped tube is very small. , large resistance along the way, weak power for natural circulation, high power consumption for forced circulation, low overall thermal efficiency, and high cost;

[0005] 3. Various types of water heaters use electric heating rods to heat the water in the water tank, and there are serious hidden dangers such as scale formation on the electric heating rods, dry burning, short life, and electric leakage;

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