Figure 1
Solar water heating system, from the windows at the same time the water supply for domestic hot water and two water. Its characteristics are in greenhouse will be transformed into multiple greenhouse, and install windows in buildings outside the walls of the bottom, the collector and a water tank placed in the greenhouse, and hot water tanks, or in indoor or balcony, and used the hose and Collector connectivity. So collectors in the water was too hot sun drying, through convection, hot water tanks in the water heating and automatically through pipelines to the water, such as restrooms.
Different functions of the hot water needs
Hot water for each family can be divided into two categories: - is the low-temperature hot water, mainly used for bathing, laundry, and so on. Another - is the boiling water or hot water temperature, water can also be referred to the kitchen, for direct drinking, cooking, and so on. Low-temperature hot water on water quality, water temperature requirements are not high, the water temperature to about 40 ℃, such as water tanks available cheap Du Lvxin monolithic. This hot water costs are lower, but the requirements of larger capacity water tanks to be 80 to 150 kilograms.
High-temperature hot water or boiled water to the higher water quality, drinking water must meet health standards, such as water tanks must be expensive stainless steel or aluminum alloy material. The water temperature requirements are also higher, need to boil or Shaodao Qi Bashi degrees Celsius (sunlight is not strong). This is obviously higher cost of hot water, but not requirements, a three homes every day about 10 kilograms enough, five homes daily 10 grams of thousands have been sufficient, or ordinary household small bucket a bucket of water. Request from the health point of view, the kitchen should include water used for washing dishes Xicai, such as low-temperature hot water, then boiled or high-temperature hot water can be used against the cold water on a low-temperature hot water use, can also be a low-temperature hot water tanks burning.
The system is based on the actual needs of the design and manufacturing, and its notable feature is the solar hot water system Kaishui Qi and were separated from the manufacture and use, this can reduce costs, but also to meet actual needs.
A hot water system
Windows of a special greenhouse solar water heating system is the basic structure of multiple greenhouse and organic integration of the windows. Multiple greenhouse installed in buildings outside the windows, the bottom of the windows on the walls, then solar collectors and water tanks placed in a greenhouse, and hot water tanks are placed on the balcony or indoor, concrete structure see Figure 1, Figure 2 .
First, the system map the side profiles, multiple greenhouse first hard materials (angle) into skeleton, from the smooth multi-storey transparent sheet or films (1) a (each layer of air between the two, it said Multiple greenhouse), and insulation materials from the bottom (2), the top surface (3), back (4) and the two sides are linked in the skeleton, constitute a closed multiple greenhouse, a trapezoidal side. Back (4) for the vertical plane, and window frames (5) the bottom of the second half of the walls or windows (6) in close contact with the outer surface and firmly fixed with screws.
Greenhouse with multiple connectivity within the balcony, in Figure 1, the greenhouse will be back (4) the windows removed and the back (4) the board also removed, leaving only four weeks under the border and window frames (5) link. In this way, indoor or balcony of the air with each other greenhouse in the air convection, but the greenhouse and indoor air with outdoor air are not in circulation. This generally applies to the balcony windows, because the bottom of the wall (6) than the short, the ground (26) only high 0.5 m ~ 0.6m, the walls can be fixed.
Multiple greenhouse can not connected with the interior, the back (4) close to the bottom of the wall (6) and indoor air and greenhouse air separated from each other can not convection, and the greenhouse and indoor air with outdoor air are not still in circulation. This generally applies to offices and homes in a balcony window, because the bottom of the wall (6) high from the ground (13th) about 1.2 m high.
Will be solar collectors (7), (14) tilted placed in review its multi-room, see Figure 1. Face up to its plans (from the balcony of the window to see the face) in Figure 2: two (or more) collectors (14) through the hose (12) (through the walls or windows) and the indoor hot water tanks (9) connected, and the other two (or more) collectors (7) and a water tank (8) directly connected.
The device works as follows: sunlight through the multi-storey transparent sheet or films (1) exposure to the collector (7) and the collector (14) on which the water and heating, hot water again through these soft seal Tube (12) and hot water tanks (9) in cold water convection cycle, cold water heating. Experiments have proved that the device can - in four seasons will be open water tanks (8) in cold water boil.
While solar hot water systems and water systems were separated from the manufacture and use, but also in the location and the installation of water use, see Figure 2. Storage capacity of 80 to 150 kilograms of the hot water tank insulation (9) installed in the indoor or balcony on the pay ceiling windows in the corner (this can have a greater downstream pressure), with its connectivity through the pipeline next to a wall inside Room to the restrooms, and other water, and water pipes connected. Just reasonable control switch, can automatically shed hot water, cold water can be automatically Guanru water tanks (9), water, Sheung Shui is extremely convenient. Despite the larger system, but water tanks (9), various water pipes, switches, etc. only the use of low-temperature-resistant around 40 ℃ of cheap materials and manufacturing technology, the cost is very low, about 300 to 400 yuan / sets.
The capacity of a smaller water tank (8), installed in the greenhouse, and the collector directly connected as one. Collector (7) also connected with the bottom of the water hose (15), see Figure 1, can shed water or high-temperature hot water, Guanru home Baowen Ping said that the use of the kitchen, etc.. It will also have pipelines and water pipes connected, the same switch to automatically open a Guanru cold water. Namely, water, Sheung Shui is still very convenient. Although the water tank (8), water pipes, switches and so on to use high-temperature resistant to 100 ℃ and in accordance with standards of health drink, the more expensive materials and manufacturing technology, but small in scale, every family needs only 10 grams of water has been found Enough, so costs are still relatively low, about 200 to 300 yuan / sets.
Superior quality protection
The device family throughout the year for the use of cheap solar water, hot water and found a complete solution. And the combination of greenhouse buildings to use solar energy, solar energy is combined with the construction of a new way. The use of location from balconies or windows to the roof, the use of the family is a major change. And the vacuum tube is a comprehensive, outlined the advantages of the device.
At the same time can produce water and hot water and two water vacuum tube solar water heaters can only be a water-hot water, than the middle of the device is a lack of water features.
Vacuum tube total cost of less than 50 percent of the greenhouse environment is extremely dry, stable and free from snow storms, such as the impact of any external factors, so the collector material, strength, manufacturing processes, such as the various demands can be substantial Reduce the available flat-plate collector, but only by a simple thin insulating layer. In this way, collector costs only 100 yuan / square meters, the entire solar hot water system (water capacity 80 kg to 150 kg) of the total cost of only about 300 to 400 yuan, less than the same capacity of the vacuum tube solar water heaters ( Corresponding cost of 800 to 1,000 yuan) of 50 percent.
Installation, routine maintenance, repair all this can be simple at home on the balcony windows, professional workers install the devices as simple as installing curtains, routine maintenance (for example, wipe the top of the greenhouse, the dust) equivalent to wiping the windows. And the vacuum tube solar water heaters, please professionals required to complete the roof.
Long life because of the greenhouse, dry, stable environment, would not be affected by wind, rain, snow, moisture, hail, and other outside factors, not material damage, so long service life than the vacuum tube. This device of non-glass collector, and there is no bombing of the problem, you can put hot water even after boiling water, immediately on the cold water. And then also very high thermal efficiency, because the collector and the environment will be all the heat to low temperature of the new cold water on the back. The glass vacuum tube bombing of the more easily.
The external environment does not affect residential areas throughout the building the appearance of multiple households according to uniform standards for greenhouse can reach out the window, and will look very handsome decorative residential areas without affecting the external environment. In contrast, vacuum tube solar water heaters were installed on the roof of the external environment may affect the aesthetic.