CN201014782Y

CN201014782Y - Solar energy horizontal water tank all-weather water heater

Info

Publication number: CN201014782Y
Application number: CN 200720104414
Authority: CN
Inventors: 罗宪安
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-13
Filing date: 2007-02-13
Publication date: 2008-01-30
Anticipated expiration: 2017-02-13

Abstract

An all-weather solar water heater with a horizontal water tank, which is a highly efficient hot water system where the water tank of the water heater is horizontally positioned and detachable. The heat-insulating water tank is concealed under the heat-collecting plate, with an extreme low center of gravity, guaranteeing both safety and beautiful exterior appearance of buildings. The utility model functions as long as with solar energy in all weathers, and as an example, with 1h of sunshine on cloudy days, the utility model can produce certain amount of hot water heated up to 55 degrees centigrade by the 1h of sunshine, giving the water heater greatly improved practicality. Besides, the utility model can solve the major problems with vacuum pipe and plate natural cycle water heater that are of a high center of gravity, insecure, spoil the beautiful exterior appearance of buildings and cannot reach a preset temperature in bad weathers. Being a result of principle innovation, the all-weather solar water heater with a horizontal water tank can be more widely be applied various building, in particular to slope roof buildings.

Description

The round-the-clock water heater of the horizontal water tank of solar energy

Affiliated technical field

The utility model relates to a kind of solar energy constant temperature and discharges water, the photovoltaic water pump forced circulation, and the round-the-clock water heater of lower water box of the auxiliary heating of electrothermal tube utilizes the moisturizing of water level valve control solar water heater, especially utilizes outer hydraulic pressure to realize constant temperature delivery water.When water tank is full, stop automatically supplying water, utilize solar-energy photo-voltaic cell that the energy of recirculation is provided afterwards, improve water temperature.The water tank low level is placed, and hot water does not mix up during use, and hot water 100% obtains utilizing, and rainy weather utilizes the auxiliary heating of electrical heating, realizes round-the-clock water heater function.

Background technology

At present, known solar water heater is mainly the natural cycle system of elevated tank (vertical), does not have the breakthrough of essence decades, comprises that vacuum tube water heater still continues to use its principle and layout structure.Its simple in structure but volume bulkiness of natural cycle system water heater.The trouble that particularly high-order vertical water tank brings: 1, water tank location is at the highest point of system, and center of gravity is too high, is absolutely unsafe, and water tank can not hang down to be put or separate; 2, influence building is attractive in appearance; 3, take bigger roof area; 4, hot water use to need cold water mend into, blending appears, rate of thermal water utilization is low; 5 and the heat collector operating temperature＞60 ℃ high-temperature region, fouling is serious, system service life is short; The restriction that above drawback is serious the natural circulation solar energy hydrophone architecturally use widely various.

Summary of the invention:

The round-the-clock water heater of the horizontal water tank of the solar energy that the utility model provides, its advantage is: 1, the water tank minimum center of gravity place of the system that is placed on that crouches, extremely safe, water tank is low to be put and can separate with heat collector; 2, system and building perfect adaptation, 3, take less roof area; 4, hot water use do not need cold water mend into, do not have blending; Rate of thermal water utilization 100%; 5, the system works temperature low≤55 ℃ do not have fouling, prolong service life; Above performance makes the round-the-clock water heater of the horizontal water tank of solar energy be able in various architectural application widely.

This solar water heater system still only utilizes solar energy not need extra civil power to realize control under the situation that function is greatly improved, and meets the environmental protection and energy saving principle.

Technical scheme:

The technical scheme that its technical problem that solves the utility model adopts is: utilize solar energy to make hot water and control automatically fully.Utilize water level valve control to open and close water inlet.Water level valve in case thermal-arrest plate water is full, is promptly closed into water in the floating cup of water level valve floats by an end of flow controller connection thermal-arrest plate upper header.Under the effect of solar energy, thermal-arrest plate water temperature rises, when reach (55 ℃=T0) during thermostat design temperature (being not limited thereto temperature), thermostat is opened automatically, the thermal water utilization gravity current is gone into water tank, water level in the water level valve descends, floating cup falls when dropping to the bottom, water level valve is opened automatically, and cold water is extruded hot water by the lower collector pipe that filling pipe enters heat collector, because the bore of thermostat and flow controller differs greatly, the hot water that is extruded enters water tank in a large number, wherein minimum part enters the water level valve cavity, and the floating device of floating cup rises when water level valve cavity water level rises to the high position, and water level valve is closed into water automatically; If thermostat is also in opening, but water inlet is closed, water again in the water level valve cavity is back to upper header by flow controller, and the interior water level of water level valve this moment descends once more, when dropping to the bottom, water level valve is opened again automatically, cold water continues hot water to extrude by the lower collector pipe that filling pipe enters heat collector again, goes round and begins again, and 55 ℃ of hot water are all extruded in plate, cold water arrives thermostat, and thermostat touches cold water and cuts out automatically.This moment, cold water can only enter water level valve by flow controller, and water level rises in the valve, and when water level rose to the high position, water level valve was closed into water automatically as preceding chat, and water level is temporarily stable.Solar thermal collector is got back to original state; So constantly work under the effect of solar energy, the hot water of the constant temperature that obtains enters water tank and stores for future use.When using hot water, do not have cold water mend into, just do not have the blending phenomenon certainly, utilize so hot water can obtain 100%.The realization of above function has also brought another benefit: be exactly in all weather, as long as solar energy is arranged with regard to getable 55 ℃ hot water, what are only relevant with weather quality (solar radiation power) for the quantity of decision hot water.Overcome natural cycle system, bad weather just can only obtain one disclose can't take a shower as＜40 ℃ water.

The existence of water level valve has guaranteed that water can not overflow in the water tank, and the water tank blast pipe must be higher than water level valve certainly.Although put but pressure-bearing not so water tank is low; In native system, during the water inlet of thermal-arrest plate certain hydraulic pressure (being exactly the pressure of running water) is arranged, owing to the existence of water level valve, solved the difficult problem of the necessary pressure-bearing of common constant temperature delivery water thermal-arrest plate.Principle is to utilize one to rush down that to press the hole be that flow controller is connected with water level valve, when water level valve is opened into water, cold water one is extruded hot water towards the moisturizing of thermal-arrest plate, one side presses the hole that water is injected (pressure release effect) in the water level valve cavity by rushing down, and makes water level valve slowly float and close into water (heat collector is pressure-bearing not) for floating glass; After the floating cup of water level valve falls, start water intaking valve and carry out moisturizing again.The moisturizing at so continuous intermittence arrives thermostat up to cold water, and thermostat touches cold water and cuts out automatically.Water in this moment ball-cock assembly cavity can not flow out, and water level is temporarily stable, and the hydraulic pressure of formation only is than thermal-arrest plate hight a bit (20～30 centimetres), has realized system's constant temperature delivery water but thermal-arrest plate pressure-bearing not at this point.In native system, no matter how outer hydraulic pressure changes the work that can not influence system.

In case water tank hot water is mended full, its temperature is inevitable in time constantly descends.Utilize this moment solar-energy photo-voltaic cell and controller to realize that by sensor and water pump the water in the water tank circulates once more: water pump is extracted the water of low level in the water tank out, enters the heat collector heating, and a high position that returns water tank realizes the circulation heat temperature raising; Wherein the design temperature of sensor (T1) must be more than or equal to the unlatching temperature (T0) of thermostat.As long as T1 〉=T0, forced circulation is heated once more and is carried out with regard to beginning automatically.Solved when not making water the problem that the water tank coolant-temperature gage constantly descends.

Native system utilizes electrothermal tube can realize auxiliary heating, electrothermal tube is placed in the cavity of heat collector lower collector pipe and heats, hot water floats to upper header, when water temperature reaches the unlatching temperature of thermostat, thermostat is opened by water level valve hot water is clamp-oned water tank, its operation principle is the same with the solar energy acting, just the different in kind of the energy.

Beneficial effect:

The beneficial effects of the utility model are, will rely on the constant temperature delivery water system of city's electric control to develop in the system without city's electric control, have realized that passive (without civil power) utilizes solar energy to make hot water and forced circulation heating fully; Compare with the Natural Circulation water heater: its advantage is 1, water tank location is put and can be separated in that lowest part extremely safe, the water tank of system is low; But 2, system and building perfect adaptation; 3, take less roof area; 4, hot water use do not need cold water mend into, do not have blending, rate of thermal water utilization 100%; 5, the system works temperature low≤55 ℃ do not have fouling, prolong service life; The realization of the various new functions of this patent has overcome the various drawbacks of Natural Circulation water heater comprehensively, makes that the round-the-clock water heater of the horizontal water tank of solar energy can be various architectural being more widely used.

Description of drawings:

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

Fig. 1 is a systematic schematic diagram of the present utility model

Fig. 2 is topology layout figure of the present utility model

1. hot-water lines among the figure, 2. thermostat, 3. sensor, 4. upper header, 5. heat collector, 6. photovoltaic cell controller, 7. water pump control line, 8. flow controller, 9. water level valve 10. advances cold water pipe, 11. water tank blast pipes, 12. the benefit cold water pipe, 13. water tanks, 14. hot water flotation hoses, 15. the hot-water outlet pipe, 16. check valves, No. 17.2 circulation pipes, 18. water pump, 19. lower collector pipe, 20. electrothermal tubes.

The specific embodiment

In Fig. 1, the upper header (4) in the heat collector (5) is connected with thermostat (2), and it is logical to connect with water tank (13) by hot-water line (1), and the other end of upper header (4) is connected with water level valve (9) by flow controller (8).Water level valve (9) connects lower collector pipe (19), water pump (18) by mending cold water pipe (12), reaches blowoff valve.Water tank (13) lower end and vertical linking to each other of check valve (16), check valve (16) is closed when guaranteeing outside having hydraulic pressure, and in hydraulic pressure (water level valve (9) is closed) time, do not open outside having.The vertical installation of check valve (16) is communicated with lower collector pipe (19) by water pump (18) with No. 2 circulation pipes (17), and during hydraulic pressure, opening automatically provides water circulation path 2 times outside nothing.Hot-water line (15) is communicated with hot water flotation hose (14), no matter the equal hot water of an exportable high position of water level height in the water tank when guaranteeing water.Water tank blast pipe (11) is communicated with the top of water tank (13), gets rid of the water tank pressure inside, and its outlet should be higher than water level valve (9).Electrothermal tube (20) inserts in the lower collector pipe (19).Sensor (3) is placed in an end of upper header (4), the temperature of induction heat collector (5), and T1＞T0 (55 ℃) is wherein satisfied in the startup by photovoltaic cell controller (6) decision water pump (18) and stopping;

In Fig. 2, the following arrangement water tank (3) of heat collector (5), the upper header (4) of heat collector (5) is communicated with water level valve (9) by flow controller (8), has guaranteed that the air that heat collector (5) occurs under any state all can pass through the pore eliminating of water level valve (9) upper end, air-resistance phenomenon can not occur.The existence of check valve (16), when having guaranteed moisturizing, water level valve is in off state, and cold water can only enter lower collector pipe (19), and can not enter water tank (13).In a single day water tank is filled, and check valve (16) is promptly opened automatically, for the water pump circulation provides the peripheral passage.Under the effect of water pump (18), the water in the water tank (13) is forced to suck and enters heat collector (5) and heat, has realized the heat exchange circulation.

The operation principle of the thermostat that relates in the system (10) and automobile joint pest device are just the same, and other parts also belong to principles well-known just not to be given unnecessary details.

Claims

1. round-the-clock water heater of the horizontal water tank of solar energy, the following arrangement water tank (3) of heat collector (5), it is characterized in that: an end of upper header (4) is connected with water level valve (9) by flow controller (8), the other end of upper header (4) connects T0=55 ℃ thermostat (2), thermostat (2) other end connects water tank (13) by hot-water line (1), water tank (13) lower end and vertical linking to each other of check valve (16), water level valve (9) connects lower collector pipe (19), water pump (18) by mending cold water pipe (12).

2. the round-the-clock water heater of the horizontal water tank of solar energy according to claim 1 is characterized in that: water tank blast pipe (11) outlet is higher than water level valve (9), and electrothermal tube (20) inserts in the lower collector pipe (19).

3. the round-the-clock water heater of the horizontal water tank of solar energy according to claim 1 is characterized in that: the sensor of temperature=T1 (3) is placed in an end of upper header (4), and photovoltaic cell controller (6) temperature of settling in the upper end of heat collector (5) is provided with T1＞T0.