Solar water heaters have energy-saving, environmental advantages, has broad application prospects. However, because the rainy days of solar water heater can not supply hot water, will affect use. In order to ensure all-weather hot water supply, photovoltaic solar hot water supply complementary system will be shipped and Health.
Problems and the reasons for
Photoelectric complement the current water supply system in the form of an overall-and separated the two. Integral is currently on the market sales of photoelectric complementary solar water heaters. Separated by the solar water heater and an indoor series combination of electric water heaters. Photoelectric complementarity in the use of hot water supply system in which many potential safety problems.
。 Charged As the use of ground water heater caused by users of electric shock accident occurred frequently, The reason is: the installation of electric water heaters building grounding system is not good, or even lack of, such as the renovation to the wrong line, the aging lines, private Rafah Wires, using low-grade switch socket, with water when the grounding line, these may lead to earth charged to electric shock caused the accident.
。 Was not installed because the water heater firmly fixed firmly and do not fall off, the user Zacheng seriously injured when the accident occurred. Installation of the reason is not firmly fixed expansion bolts connecting with the wall is not solid, or is the wall itself of low intensity, can not be fixed expansion bolts.
Kurashiki lines open tomorrow because of the risk factors more and more for solar water heaters installed after the households in the solar water heaters, water pipes and wires that are located in the wall, that is exactly the suspension on the outside wall. This is installed there the following questions: pipe insulation effect poor, freezing winter easy to plug pipes, or even Donglie pipeline, to the neighbors after the melting of indoor water seepage; wind and rain by wire, e-aging leakage, because no reliable fixed measures , Easily aroused live off the wind-landing caused others to electric shock.
Security system design focus
Residential housing is to provide people, living space and function of the building. Residential development in the commercialization of today, refined decoration of residential as finished products sold to tenants, will be the development trend of domestic goods. 。 Residential system functions in the design phase should be coordinated for the same design and layout, especially the design of physical security and safety aspects of the use of gas interface, interface and electronics equipment installation interface. Domestic water supply system at the design stage should choose a system. The option of using photoelectric complementary hot water supply system, should be on the installation, wiring and other issues of security systems design.
Photoelectric complementary Mode
Residential architecture from the perspective of life and equipment, energy saving, the economic perspective, and so integrated, that separated photoelectric complementary pattern than the overall style of the following aspects of the advantages:
As a result of reducing the length of cable will be installed directly on the water heater in the bathroom or kitchen, cable and electric water heaters directly connected with solar water heaters do not connect, and the overall photoelectric complementary solar water heaters compared with the outstanding short cable Advantages.
Heat loss on the general line of solar water heaters are installed on the roof. When the rainy days need hot-water heater, the overall photoelectric complementary solar water heaters heat water on the roof after the return of indoor use, will increase the pipeline along the heat loss is not conducive to building energy conservation. The top-water solar water heaters, water pressure hours, heating the hot water because not enough water pressure and can not be used. A waste of energy and heat loss. 。 Separated for optoelectronic complementary hot water system, the above problems are not there.
Equipment long life as a whole photoelectric complementary solar water heater is electric heating and water heaters, solar collectors into one of the assembly mode, is the water heater as solar energy storage tank of a solar water heater. As we all know, a device composed of components, the more equipment the greater the probability of failure. Some of the water heater in the device is a consumable, the service life of only one year, therefore, photoelectric complementary solar water heaters than the life of ordinary solar water heater short. The use of electric water heaters + solar water heaters in series of complementary patterns, long life and easy maintenance.
The use of high-reliability of the overall Optical complementary solar water heater system as a whole pipeline is a "bottleneck", when a frozen pipe blocking Donglie-style, will lead to the failure of hot water system. Separated by photoelectric complementary water heaters, water heaters and solar energy group in the series of hot water supply system, the two devices is not only independent but also complementary. When an equipment failure, other equipment can work independently, it is not only complementary, is a backup. The reliability of the system of higher than the overall.
The installation of equipment
A solar water heater installation
Should consider the installation of fixed firmly and structural safety precautions, mine roof and drainage, and other factors.
Fixed in the top layer of roofing and waterproofing layer to prevent damage caused roof leakage.
Specifically: in the roof directly on pouring concrete Pier, Pier embedded on the expansion bolts. Pier location: Pier should be done in the wall of the structure above. Spaces in the pouring directly on the floor (easy to overloading, caused deformation floor, leakage). Pier based on the size of the local wind load checking the size of the wind determined. In order to increase stability, to more than the pouring of the style Pier. Pier for discharge in the hole, and ensure smooth flow of roof drainage.
Mine safety measures
Installed on the roof of solar water heaters, are generally more than the height of the roof parapet, the original design of the mine roof of solar water heater system is invalid. After the installation of solar water heaters in the building, measures should be considered mine.
。 The reunification of the design stage to consider the installation of solar energy in construction, design reunification should be considered fixed, mine and other measures.
Second, the installation of electric water heaters
The installation of electric water heaters to the installation location choices, fixed, cable and socket, leakproof, design, and so on.
Installation location: the installation of electric water heaters for the general location of bathrooms. To the beautiful bathrooms, electric water heaters are usually installed in the ceiling, but this approach will make Loukong ceiling, ventilation visualization. Confined Spaces installed in the ceiling inside.
Fixed: the water heater should be fixed on the wall or on the floor. When fixed in the load-bearing wall, can be directly embedded bolt or a direct expansion bolt when in 120 fixed on the thick brick wall, they should adopt concrete walls embedded block the way embedded bolt when the bathroom wall for the other Cut off the wall, the floor should be to choose a fixed, embedded in the floor, bolts, or embedded pieces of iron, and then bolt welding on the Iron.
Cables, and leak-proof electrical socket design: the design of new residential distribution is generally considered the use of electric water heaters or air-conditioning the electricity load. Cabling design, consider ground, all three holes sockets are reliable ground and land connectivity. Use leak-proof socket outlet in the bathroom of the location of installed electric water heaters, three holes for socket.
To prevent the tenants will, together with ground and water pipes, causing the entire floor, metal pipe leakage occurred in the bathroom, bathroom, kitchen, such as installing an electric water heater in a room, and so do potential connection system to prevent leakage.
Third, the installation of pipelines
Solar water heater and water heater installation of the pipeline is complementary photoelectric hot water system an important component 51. Including the choice of pipeline material, the laying of pipes, pipe insulation three areas.
Pipeline material options: the use of solar water heaters pipeline proposed the option of using the aluminum-plastic composites. It is not appropriate to use the hose, PP-R pipe, because these pipe deformation, not fixed.
The laying of pipelines: the wall should be dedicated to do well for the pipeline or pipelines solar water heater from top to bottom with the laying of water pipes. Cave of the wells or pipelines to set aside a fixed channel card fixed pipeline.
Pipe insulation: hot water from the roof into the room, to go through a certain distance, the longer the pipeline along the greater the heat loss. So pipe insulation measures must be taken. The use of dark caves deposited the pipeline, should be wrapped in a layer of pipe insulation materials above. The pipeline used for the installation of wells, pipelines hole in the insulation packing materials, such as perlite, and so on.
Solar water heaters can best supporting pipeline used by manufacturers supporting reunification of supply. Pipe insulation pipeline directly into manufacturing, increased flexibility and adaptability of the installation, installation of insulation to reduce the workload at the scene.