CN2423547Y

CN2423547Y - Solar electric water heater with abnormal-shaped metal heat collecting pipe

Info

Publication number: CN2423547Y
Application number: CN00203832U
Authority: CN
Inventors: 谢绍浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-18
Filing date: 2000-02-18
Publication date: 2001-03-14
Anticipated expiration: 2010-02-18

Abstract

The utility model relates to a solar electric water heater with a special metal heat collecting pipe, which belongs to a household electric appliance. The utility model changes a heat collector from a traditional cylindrical glass pipe of which the interlayer is pumped out into a corrosion resistant special pipe made of aluminium alloy, wherein both sides of a cylindrical pipe of the special pipe are respectively provided with a wing, an outer layer of the special pipe is coated by black color and the special pipe is arranged in the casing. The front side of the special pipe is covered with glass and is reinforced into a whole for heat preservation in order to increase the heat collecting area and raise the heat collecting efficiency. Simultaneously, the utility model is provided with an electric heating pipe for heating when needed and is also provided with indicators for the water level and the water temperature. The utility model has convenient use.

Description

Profiled metal thermal-collecting tube solar electric water heater

The utility model belongs to the solar electric water heater of household electrical appliance.

Listing now as the solar water heater of shower two kinds of charged heating and not charged heating are arranged, but cylindrical glass tube water storage, thermal-arrest that their heat collector great majority adopt interlayer to find time, superconducting pipe being placed in the glass tube of also having absorbed heat and transferring heat energy, there is the shortcoming that glassware is frangible and collector area is less in this kind mode, and they generally all do not have the indication of temperature and water level.

The purpose of this utility model: provide a kind of adopt strengthen collector area, improve collecting efficiency, non-damageable and have a profiled metal thermal-collecting tube solar electric water heater of temperature, water level indication.

The purpose of this utility model is to realize like this, the cylindrical glass tube that heat collector is found time by traditional interlayer, change the corrosion resistant aluminum alloy special pipe of the cylindrical tube two side band wings into, outer black coated is placed in the shell, front cover upper glass and integrated reinforcing, with heat collector two ends sealing insulation, improve collecting efficiency to increase collector area, heat collector converts solar energy to heat energy rises water temperature, the water of heat collector is communicated with the water of water storage tank and forms Natural Circulation, place electric heating tube in the middle of the water tank bottom, water inlet pipe and water outlet pipe, overflow pipe and water level, cooling-water temperature sensor etc., carry out electrical heating when needed, and water level arranged, the water temperature indication, water temperature is controlled when carrying out electrical heating.

Owing to adopt such scheme, the utility model is bigger than the solar electric water heater collector area of existing listing, collecting efficiency is high, and is sturdy and durable, and it is easy to use to be provided with various indications.

Below in conjunction with drawings and Examples, the utility model is further specified.

Fig. 1 is the utility model structure connection diagram, and middle heat collector shifts out.

Fig. 2 is the axis projection figure of the utility model heat collector.

Fig. 3 is the utility model electrical schematic diagram.

Among the figure in 1. water storage tanks, 2. water low sensors, 3. water water-bed sensor 15. overflow pipes of level sensor 4. water high position sensor 5. shell of water storage tanks 6. water storage tank inner bags 7. heat-insulation layers, 8. cooling-water temperature sensors, 9. electric heating tubes, 10. water power assemblies, 11. shelves, 12. profiled metal thermal-collecting tubes, 13. heat collectors 14. 16. water inlet pipe and water outlet pipes 17. bundle conductors 18. control indication boxes 19. buzzers 20. running water valves 21. about water valve 22. spray water valves 23. spray throwers 24. glass 25. heat collector shells 26. power transformers 27. full-bridge rectifiers.

After connecting the water source, open water valve (20) and water valve (21) from the beginning up and down, closing spray water valve (22) cold water enters from the direction of arrow and flows through up and down water valve (21) water inlet pipe and water outlet pipe (16) and inject in the water storage tank inner bag (6), and flow in each heat collector (13), after water level surpasses water high position sensor (4), water valve (20) water then will overflow from overflow pipe (15) as not closing from the beginning.

When solar radiation arrives each heat collector (13), because its surface is the black coated, it is close to 100% with sunlight and is converted to heat energy, and conduct to the water in the pipe through the corrosion resistant aluminum alloy pipe and to make water temperature rising, water temperature rising back water density diminishes and rises to the water storage tank inner bag (6) that is communicated with it, cold water but constantly replenishes and flow in the heat collector simultaneously, forms Natural Circulation.In order to increase daylighting area, heat collector is made profiled metal thermal-collecting tube (12), promptly two sides are stretched out two wings outside circular aluminum pipe, the sunlight that receives on two wings becomes thermal energy conduction earlier and conducts feedwater again to pipe, outside profiled metal thermal-collecting tube (12), put shell (25) front cover upper glass (24) and integrated reinforcing in order to improve the thermal efficiency, simultaneously heat collector shell two ends are sealed, do not allow the mobile heat energy that reduces on the thermal-collecting tube of air from air, run off, profiled metal thermal-collecting tube (12) one ends sealing water storage, other end cylindrical part is long to be inserted in the water storage tank inner bag (6).Water temperature in the water storage tank (1) constantly rises under solar radiation, wraps heat-insulation layer (7) and water storage tank shell (5) with insulation outside water storage tank inner bag (6).In order to make water Natural Circulation normally, need water storage tank (1) is placed on the shelf (11), the height of shelf should make heat collector (13) to horizontal plane shape in an angle, the size of angle during with use residing latitude relevant, latitude high angle more is big more, generally gets about 30 °～40 ° to get final product.

Arrived the winter of severe cold or run into sleety weather, when the irradiation of sunlight can not make water temperature reach serviceability temperature, then can connect the power supply electricity consumption and do auxiliary heating.Toggle switch K ₂With controllable silicon VT ₁The control utmost point is connected, and when water temperature was lower than design temperature, cooling-water temperature sensor (8) sun value was bigger, BG ₁Turn-on relay J ₁Adhesive makes K ₁Connect luminous tube D ₂Bright, make VT ₁Conducting electric heating tube (9) energising heating, after water temperature rose to design temperature, cooling-water temperature sensor (8) resistance diminished and makes BG ₁By J ₁Discharge K ₁Disconnect VT ₁By electric heating tube (9) outage stopping heating, luminous tube D ₃The bright keeping warm mode that enters.Cooling-water temperature sensor (8) is made up of temp .-sensitive diodes and shell.Potentiometer W ₃Be provided with the knob of band temperature scale outward, slowly rotate and just made D ₂The indicated temperature in luminous position is the temperature of water in the water storage tank, and promptly it has played the temperature indicative function.The indication of water level is achieved in that has placed 4 level sensors in water storage tank, water-bed sensor (14) floods forever in water, when water level is raised to water low sensors (2), connects K switch ₃, these two sensors make BG because of there is the water conducting centre ₂Conducting luminous tube D ₆Bright, when in like manner water level is raised to level sensor in the water (3) again, BG ₂, BG ₃All conductings, luminous tube D ₆, D ₇Bright, water level continues to rise, when flooding water high position sensor (4), and BG ₂, BG ₃, BG ₄All conductings, luminous tube D ₆, D ₇, D ₈All bright, buzzer (19) warning of sounding simultaneously should be closed from the beginning water valve (20) immediately in order to avoid overflow.For obtaining required power supply, adopt a small power supply transformer (26) and full-bridge rectifier (27), luminous tube D behind the connection power supply ₄Promptly bright.Can be when not needing the water level indication with K switch ₃Turn off.At sunshine when abundant, can be with K switch ₂Turn off K ₂And K ₃Uncorrelated.All electric elements all are placed in the control indication case (18) and link to each other with bundle conductor (17), and with electric heating tube (9) cooling-water temperature sensor (8), water inlet pipe and water outlet pipe (16), overflow pipe (15), each level sensor is formed a water power assembly (10), is easy for installation and maintenance.Each level sensor all is sheet metals.D ₁, D ₅Be Zener diode.

When carrying out shower, only need open spray water valve (22) and up and down water valve (21) get final product.Close up and down water valve (21) to regulate water temperature as higher water valve (20) and the part of can partly opening from the beginning of water temperature.

Claims

1. profiled metal thermal-collecting tube solar electric water heater, it is characterized in that: heat collector is the corrosion resistant aluminum alloy special pipe of the cylindrical tube two side band wings, outer black coated, be placed in the shell, front cover upper glass and integrated reinforcing, heat collector shell two ends are sealed, insulation, to increase collector area, improve collecting efficiency, heat collector converts solar energy to heat energy makes the water temperature rising form Natural Circulation, place electric heating tube at water tank bottom simultaneously, water inlet pipe and water outlet pipe, overflow pipe and water level, cooling-water temperature sensor, carry out electrical heating when needed and water level is arranged, the water temperature indication, it is by water storage tank (1), electric heating tube (9), heat collector (13), cooling-water temperature sensor (8), level sensor (2), (3), (4), (14) form.

2. profiled metal thermal-collecting tube solar electric water heater according to claim 1 is characterized in that: heat collector (13) is by profiled metal thermal-collecting tube (12) glass (24) heat collector shell (25) integrated composition.