The solar energy central hot-water heating system
Technical field
The utility model relates to solar water heating equipment, specially refers to a kind of solar energy central hot water supply system.
Background technology
Solar energy is a kind of Natural re generation energy of cleaning, and is inexhaustible, is the energy that everyone can both share.Current, human utilization to solar energy makes remarkable progress, and particularly in the solar water heater field, uses very universal.At present, the core component of domestic solar water heater is glass-vacuum tube, and technology is quite ripe, and three senior executives that wherein have " high temperature resistant, anti-high and cold, efficient absorption " have realized that especially super absorption, heat waste are few, the effect of quick heating, as long as illumination is arranged, subzero 30 ℃ of hot water that do as usual out.Yet, glass-vacuum tube can only be worked under normal pressure, hydraulic pressure is slightly arranged, will make the glass-vacuum tube explosion, thereby the scope of application is restricted, can not in the central hot water supply system, use, can only be to be installed on the roof by each family to use, so that taken by one by one solar water heater on the roof of residential building, be repugnant to the eye.
Chinese patent application numbers 2012103624031 discloses a kind of pressure-bearing type solar heat collector of the applicant, working pressure reaches more than the 4MPa, be enough to bear the pressure of tap water pipe network, and efficient absorption solar energy production hot water, the thermal-arrest copper pipe of pressure-bearing type solar heat collector places transparent vacuum environment, water is in the thermal-arrest copper pipe, through solar radiation, solar thermal energy is delivered in the interior water of pipe, water temperature raises, and density reduces, and hot water moves upward, cold water is replenished in the thermal-arrest copper pipe by the interface of bottom, carries out circulating-heating.As the firing equipment of pressure-bearing type solar heat collector as the building central hot-water heating system, enlarged the scope that solar energy utilizes, the consumption of minimizing coal resources and minimizing are to the pollution of environment.
The utility model content
The purpose of this utility model provides a kind of central hot-water system that can bear tap water pipe network pressure and concentrate the absorption solar energy; being adapted at restaurant, office building and residential building uses; for the user supplies the domestic hot-water; the scope of utilizing to enlarge solar energy; the consumption of minimizing coal resources and minimizing are preserved the ecological environment to the pollution of environment.
A kind of solar energy central hot-water heating system of the present utility model, mainly by the solar thermal collector array, main hot-water cylinder (8), secondary hot-water cylinder (30) and utilidor form, wherein, the solar thermal collector array passes through string by many pressure-bearing type solar heat collectors (15), parallel way combines, pressure-bearing type solar heat collector (15) is by top connection (15-2), transparent glass tube (15-3), thermal-arrest copper pipe (15-5) and lower contact (15-6) consist of, the interior space of transparent glass tube (15-3) consists of vacuum chamber (15-4), thermal-arrest copper pipe (15-5) is arranged in the vacuum chamber (15-4), the interior empty formation heat collector cavity of thermal-arrest copper pipe (15-5), the outer surface of thermal-arrest copper pipe (15-5) scribbles the spectral selection absorbing coating, be used for absorbing solar radiant energy, the upper end of transparent glass tube (15-3) is connected to top connection (15-2), the lower end of transparent glass tube (15-3) is connected to lower contact (15-6), top connection (15-2) has hot water circuit outlet (15-1) to pick out, lower contact (15-6) has circulation water inlet (15-7) access, circulation water inlet (15-7) is communicated to the heat collector cavity in the thermal-arrest copper pipe (15-5), and the heat collector cavity in the thermal-arrest copper pipe (15-5) is communicated to hot water circuit outlet (15-1); Main hot-water cylinder (8) is by can body a, hot water outlet a(4), hot water circuit entrance a(6), circulating outlet a(7) and running water inlet a(9) consist of, hot water outlet a(4) at the top of can body a, hot water circuit entrance a(6) at the 1/2 following position of can body a, circulating outlet a(7) at hot water circuit entrance a(6) the next and be in the 1/3 following position of can body a, running water inlet a(9) at circulating outlet a(7) the next and be in the bottom of can body a; Secondary hot-water cylinder (30) is by can body b, hot water outlet b(34), hot water circuit entrance b(26), circulating outlet b(23) and running water inlet b(29) formation, hot water outlet b(34) at the top of can body b, hot water circuit entrance b(26) at the 1/2 following position of can body b, circulating outlet b(23) at hot water circuit entrance b(26) the next and be in the 1/3 following position of can body b, running water inlet b(29) at circulating outlet b(23) the next and be in the bottom of can body b.The solar thermal collector array, connect by utilidor between main hot-water cylinder (8) and the secondary hot-water cylinder (30), connected mode is: the output of solar thermal collector array is connected to utilidor a(14) entrance, utilidor a(14) outlet is connected respectively to valve g(31) entrance and valve h(32) entrance, valve g(31) outlet is connected to the hot water circuit entrance b(26 of secondary hot-water cylinder (30)), valve h(32) outlet is connected to utilidor f(38) entrance, utilidor f(38) outlet is connected to the hot water circuit entrance a(6 of main hot-water cylinder (8)), the circulating outlet a(7 of main hot-water cylinder (8)) be connected to utilidor b(16) entrance, utilidor b(16) outlet is connected to the input of solar thermal collector array, the circulating outlet b(23 of secondary hot-water cylinder (30)) and link utilidor b(16) on; The hot water outlet b(34 of secondary hot-water cylinder (30)) by valve j(35), heat-exchanger pump (37) and utilidor f(38) be connected to the hot water circuit entrance a(6 of main hot-water cylinder (8)); The hot water outlet a(4 of main hot-water cylinder (8)) be connected to valve a(3) entrance, valve a(3) outlet be connected to the entrance of hot water supply pipe (1), the outlet of hot water supply pipe (1) is connected to subscriber terminal equipment; The running water inlet a(9 of main hot-water cylinder (8)) and the running water inlet b(29 of secondary hot-water cylinder (30)) be connected to tap water pipe network.
In the utility model, described many pressure-bearing type solar heat collectors (15) are ten above pressure-bearing type solar heat collectors (15); Described series and parallel mode comprises: carry out the mode of connecting again after parallel connection, the parallel connection after series, parallel, the series connection again; When adopting series system to be combined into the solar thermal collector array, the hot water circuit outlet (15-1) of the pressure-bearing type solar heat collector of top layer (15) consists of the output of solar thermal collector array, and the circulation water inlet (15-7) of the pressure-bearing type solar heat collector of bottom (15) consists of the input of solar thermal collector array; When adopting parallel way to be combined into the solar thermal collector array, the hot water circuit of many pressure-bearing type solar heat collectors (15) outlet (15-1) also connects the output of rear formation solar thermal collector array, and the circulation water inlet (15-7) of many pressure-bearing type solar heat collectors (15) also connects the input of rear formation solar thermal collector array.
In the utility model, the heat-preservation cotton of aluminosilicate material is installed on the outer wall of main hot-water cylinder (8), blowdown outlet a(12 is arranged at the bottom of main hot-water cylinder (8)) pick out blowdown outlet a(12) be connected to blowoff valve a(13) and entrance, blowoff valve a(13) outlet be connected to blow-off line; The heat-preservation cotton of aluminosilicate material is installed on the outer wall of secondary hot-water cylinder (30), blowdown outlet b(25 is arranged at the bottom of secondary hot-water cylinder (30)) pick out, blowdown outlet b(25) be connected to blowoff valve b(24) entrance, blowoff valve b(24) outlet be connected to blow-off line; Automatic exhaust steam valve a(2 is arranged at the top at main hot-water cylinder (8)), at the top of secondary hot-water cylinder (30) automatic exhaust steam valve b(36 is arranged); Thermometer a(5 is arranged at the top at main hot-water cylinder (8)), on the top of secondary hot-water cylinder (30) thermometer b(33 is arranged).
In the utility model, the running water inlet a(9 of main hot-water cylinder (8)) by valve b(10) be connected to tap water pipe network, the running water inlet b(29 of secondary hot-water cylinder (30)) by valve f(27) be connected to tap water pipe network; Circulating outlet a(7 at main hot-water cylinder (8)) and utilidor b(16) between utilidor c(17 is arranged) and valve c(18), utilidor c(17) and valve c(18) be connected in series; Circulating outlet b(23 at secondary hot-water cylinder (30)) and utilidor b(16) between utilidor e(22 is arranged) and valve e(21), utilidor e(22) and valve e(21) be connected in series.
In the utility model, described subscriber terminal equipment comprises shower faucet, Tap for bathtub, washbowl is leading, kitchen sink is leading.
Above-mentioned utility model is used as the building central hot-water heating system, the thermal-arrest copper pipe diameter of pressure-bearing type solar heat collector (15) is 25mm, wall thickness is 2mm, the working pressure of heat collector reaches more than the 4MPa, be enough to bear the pressure of tap water pipe network, the outer surface of thermal-arrest copper pipe scribbles and comprises cupric oxide, black nickel, black chromium, black zinc, the spectral selective absorbing coating of black copper material, be used for the efficient absorption solar radiant energy, the energy of solar radiation passes to the water in the thermal-arrest copper pipe, after water heats up, density diminishes and ascending motion, output by the solar thermal collector array is discharged heat collector, enter into the master by utilidor again, in the secondary hot-water cylinder, main, cold water in the secondary hot-water cylinder is by the circulating outlet output of can body bottom, input by utilidor and solar thermal collector array enters in the thermal-arrest copper pipe, in the situation that solar irradiation is arranged, the water in the thermal-arrest copper pipe constantly is heated, form circulating water flow, make the master, water heating in the secondary hot-water cylinder.The utility model arranges the master in system, the purpose of secondary hot-water cylinder is can either control the leaving water temperature of hot water between 55 ℃~60 ℃, to prevent that personnel from scalding, can give full play to again the efficient of pressure-bearing type solar heat collector, produce sufficient hot water and satisfy instructions for use, hot water in the main hot-water cylinder directly offers the user and uses, sunny when daytime, when the water in the main hot-water cylinder is heated to 60 ℃, valve-off h(32), stop the circulating-heating to main hot-water cylinder, at this moment, during work, the solar thermal collector array continues circulating-heating to secondary hot-water cylinder, with thermal energy storage in secondary hot-water cylinder, when making main hot-water cylinder not have hot water when there not being solar irradiation, valve-off h(32), open valve j and start heat-exchanger pump, the hot water in the secondary hot-water cylinder is exchanged in the main hot-water cylinder for the user.During implementation, use electric contact thermometer on the main hot-water cylinder, valve h(32) and valve j(35) use motor-driven valve, to realize automatic control.In the utility model, decide with site environment the installation site of solar thermal collector array, can be installed on the exterior wall of Chaoyang, on the ground or the roof.
In the above-mentioned utility model, the capacity of secondary hot-water cylinder is greater than more than 3 times of main hot-water cylinder capacity, and the quantity of pressure-bearing type solar heat collector (15) and the capacity of major and minor hot-water cylinder design with reference to the heating efficiency of solar thermal collector (15) the movable population in conjunction with these building building.
The beneficial effects of the utility model are: provide a kind of and can bear tap water pipe network pressure and concentrate the central hot-water system that absorbs solar energy; utilize solar energy centralized production hot water; offering the user uses; being adapted at restaurant, office building and residential building uses; the scope of utilizing to enlarge solar energy; the consumption of minimizing coal resources and minimizing are preserved the ecological environment to the pollution of environment.
Description of drawings
Accompanying drawing is a kind of solar energy central hot-water heating system figure of the present utility model.
Among the figure: 1. hot water supply pipe, 2. automatic exhaust steam valve a, 3. valve a, 4. hot water outlet a, 5. thermometer a, 6. hot water circuit entrance a, 7. circulating outlet a, 8. main hot-water cylinder, 9. running water inlet a, 10. valve b, 11. tap water pipe networks, 12. blowdowns outlet a, 13. blowoff valve a, 14. utilidor a, 15. pressure-bearing type solar heat collectors, 16. utilidor b, 17. utilidor c, 18. valve c, 21. valve e, 22. utilidor e, 23. circulating outlet b, 24. blowoff valve b, 25. blowdowns outlet b, 26. hot water circuit entrance b, 27. valve f, 28. tap water pipe networks, 29. running water inlet b, 30. secondary hot-water cylinder, 31. valve g, 32. valve h, 33. thermometer b, 34. hot water outlet b, 35. valve j, 36. automatic exhaust steam valve b, 37. heat-exchanger pumps, 38. utilidor f; 15-1. the outlet of the hot water circuit of heat collector, the top connection of 15-2. heat collector, the transparent glass tube of 15-3. heat collector, the vacuum chamber of 15-4. heat collector, the thermal-arrest copper pipe of 15-5. heat collector, the lower contact of 15-6. heat collector, the circulation water inlet of 15-7. heat collector.
The specific embodiment
Among the embodiment shown in the drawings, the solar energy central hot-water heating system is mainly by the solar thermal collector array, main hot-water cylinder (8), secondary hot-water cylinder (30) and utilidor form, wherein, the solar thermal collector array is combined with parallel way by 180 pressure-bearing type solar heat collectors (15), pressure-bearing type solar heat collector (15) is by top connection (15-2), transparent glass tube (15-3), thermal-arrest copper pipe (15-5) and lower contact (15-6) consist of, the interior space of transparent glass tube (15-3) consists of vacuum chamber (15-4), thermal-arrest copper pipe (15-5) is arranged in the vacuum chamber (15-4), the interior empty formation heat collector cavity of thermal-arrest copper pipe (15-5), the outer surface of thermal-arrest copper pipe (15-5) scribbles the spectral selection absorbing coating, be used for absorbing solar radiant energy, the upper end of transparent glass tube (15-3) is connected to top connection (15-2), the lower end of transparent glass tube (15-3) is connected to lower contact (15-6), top connection (15-2) has hot water circuit outlet (15-1) to pick out, lower contact (15-6) has circulation water inlet (15-7) access, circulation water inlet (15-7) is communicated to the heat collector cavity in the thermal-arrest copper pipe (15-5), heat collector cavity in the thermal-arrest copper pipe (15-5) is communicated to hot water circuit outlet (15-1), the hot water circuit of 180 pressure-bearing type solar heat collectors (15) outlet (15-1) also connects the output of rear formation solar thermal collector array, and the circulation water inlet (15-7) of 180 pressure-bearing type solar heat collectors (15) also connects the input of rear formation solar thermal collector array; Main hot-water cylinder (8) is by can body a, hot water outlet a(4), hot water circuit entrance a(6), circulating outlet a(7), running water inlet a(9) and blowdown outlet a(12) consist of, hot water outlet a(4) at the top of can body a, hot water circuit entrance a(6) at the 1/2 following position of can body a, circulating outlet a(7) at hot water circuit entrance a(6) the next and be in the 1/3 following position of can body a, running water inlet a(9) at circulating outlet a(7) the next and be in the bottom of can body a, blowdown outlet a(12) in the bottom of can body a, automatic exhaust steam valve a(2 is arranged at the top at main hot-water cylinder (8)), thermometer a(5 is arranged at the top at main hot-water cylinder (8)), the heat-preservation cotton of aluminosilicate material is installed at the outer wall of main hot-water cylinder (8); Secondary hot-water cylinder (30) is by can body b, hot water outlet b(34), hot water circuit entrance b(26), circulating outlet b(23), running water inlet b(29) and blowdown outlet b(25) consist of, hot water outlet b(34) at the top of can body b, hot water circuit entrance b(26) at the 1/2 following position of can body b, circulating outlet b(23) at hot water circuit entrance b(26) the next and be in the 1/3 following position of can body b, running water inlet b(29) at circulating outlet b(23) the next and be in the bottom of can body b, blowdown outlet b(25) in the bottom of can body b, automatic exhaust steam valve b(36 is arranged at the top at secondary hot-water cylinder (30)), thermometer b(33 is arranged at the top at secondary hot-water cylinder (30)), the heat-preservation cotton of aluminosilicate material is installed at the outer wall of secondary hot-water cylinder (30).The solar thermal collector array, connected mode between main hot-water cylinder (8) and the secondary hot-water cylinder (30) is: the output of solar thermal collector array is connected to utilidor a(14) entrance, utilidor a(14) outlet is connected respectively to valve g(31) entrance, valve h(32) entrance, valve g(31) outlet is connected to the hot water circuit entrance b(26 of secondary hot-water cylinder (30)), valve h(32) outlet is connected to utilidor f(38) entrance, utilidor f(38) outlet is connected to the hot water circuit entrance a(6 of main hot-water cylinder (8)), the circulating outlet a(7 of main hot-water cylinder (8)) by utilidor c(17) and valve c(18) be connected to utilidor b(16) entrance, utilidor b(16) outlet is connected to the input of solar thermal collector array, the circulating outlet b(23 of secondary hot-water cylinder (30)) by utilidor e(22) and valve e(21) be connected to utilidor b(16) on; The hot water outlet b(34 of secondary hot-water cylinder (30)) by valve j(35), heat-exchanger pump (37) and utilidor f(38) be connected to the hot water circuit entrance a(6 of main hot-water cylinder (8)); The hot water outlet a(4 of main hot-water cylinder (8)) be connected to valve a(3) entrance, valve a(3) outlet be connected to the entrance of hot water supply pipe (1), the outlet of hot water supply pipe (1) is connected to subscriber terminal equipment; The running water inlet a(9 of main hot-water cylinder (8)) by valve b(10) be connected to tap water pipe network, the running water inlet b(29 of secondary hot-water cylinder (30)) by valve f(27) be connected to tap water pipe network, the blowdown of main hot-water cylinder (8) outlet a(12) be connected to blowoff valve a(13) entrance, blowoff valve a(13) outlet be connected to blow-off line; The blowdown outlet b(25 of secondary hot-water cylinder (30)) be connected to blowoff valve b(24) entrance, blowoff valve b(24) outlet be connected to blow-off line.
The present embodiment is used as restaurant's central hot-water system, the thermal-arrest copper pipe diameter of pressure-bearing type solar heat collector (15) is 25mm, wall thickness is 2mm, the working pressure of heat collector reaches more than the 4MPa, the outer surface of thermal-arrest copper pipe scribbles and comprises cupric oxide, black nickel, black chromium, black zinc, the spectral selective absorbing coating of black copper material, be used for the efficient absorption solar radiant energy, the energy of solar radiation passes to the water in the thermal-arrest copper pipe, after water heats up, density diminishes and ascending motion, output by the solar thermal collector array is discharged heat collector, enter into the master by utilidor again, in the secondary hot-water cylinder, main, cold water in the secondary hot-water cylinder is by the circulating outlet output of can body bottom, input by utilidor and solar thermal collector array enters in the thermal-arrest copper pipe, in the situation that solar irradiation is arranged, water in the thermal-arrest copper pipe constantly is heated, and forms circulating water flow, makes the master, water heating in the secondary hot-water cylinder.In the present embodiment, hot water in the main hot-water cylinder directly offers the passenger that stays at an inn and uses, secondary hot-water cylinder is as energy storage device, the capacity of secondary hot-water cylinder is greater than 5 times of main hot-water cylinder capacity, when the hot water in the daytime sunny main hot-water cylinder reaches 60 ℃, valve-off h(32), stop the circulating-heating to main hot-water cylinder, when the hot water temperature in night master's hot-water cylinder crosses when low, valve-off h(32), open valve j and start heat-exchanger pump, the hot water in the secondary hot-water cylinder is exchanged in the main hot-water cylinder for the user.In the present embodiment, the solar thermal collector array is installed on the wall face of top layer Chaoyang; The thermometer a(5 of (8) on the main hot-water cylinder) use electric contact thermometer, valve h(32) and valve j(35) use motor-driven valve, to realize automatic control.