CN2473543Y

CN2473543Y - Change-over device for solar water heater

Info

Publication number: CN2473543Y
Application number: CN01217673U
Authority: CN
Inventors: 臧宝华
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-26
Filing date: 2001-02-26
Publication date: 2002-01-23
Anticipated expiration: 2011-02-26

Abstract

A transfer device for a solar water heater mainly comprises two three-way magnetic valves, a pump, three thermocouples and a control panel. The two three-way magnetic valves are separately connected to a cold water pipe and a hot water pipe of an electric water heater and are connected to a cold water pipe and a hot water pipe, a cold water source and a hot water outlet of the solar water heater, and the pump are connected between the cold water pipes of the two heaters, and the three thermocouples are arranged inside water tanks of the two heaters and inside an insulating layer of the cold water pipe and the hot water pipe of the solar water heater, and the three-way magnetic valve, the pump and the thermocouple are all connected to the control panel. The transfer device is suitable for the combination of present solar water heater and common electric water heater, and can realize the effects of immediate heating of using water and boiled water, stable water temperature, reducing energy consumption, convenient use and operation and antifreezing.

Description

The conversion equipment of solar water heater

The utility model relates to a kind of conversion equipment of solar water heater.

In order to save conventional energy resource, the conservation of nature environment is advanced in living standard, and people attach great importance to development and utilization solar energy, and is wherein outstanding with solar water heater.Solar water heater of the prior art, its water tank mostly are unpressurized greatly, adopt the method for falling into water water intaking, and this has just caused solar water heater in use to have following shortcoming:

One, wastes water: because adopt non-press-bearing water tank, so, water tank normally is installed in higher positions such as roof, to form water-head, the method water intaking realizes falling into water, like this, from water tank to delivery port is to be connected by longer pipe, and after stopping water at every turn, the water in this pipe be " stagnant water " and as time passes gradually cooling become cool, when water once more, after must bleeding off this a part of cold water earlier, could use, so very waste water, and use also inconvenience, the effect that can not accomplish " boiling water instant heating ".

Two, temperature is unstable: because adopt the method for falling into water water intaking, so, hot water or cold water's source pressure difference, the pressure of hot water is from the formation water-head of water tank to delivery port, and the pressure of cold water is then from the city tap-water pressure of supply water, when the pressure of cold water changes, the pressure of hot water can't change thereupon, it is inconsistent to cause the two pressure to change, so be prone to the phenomenon of " sometimes hot and sometimes cold ", comfort is poor.

Three, not antifreeze: because be to connect by longer pipe from water tank to delivery port, water in this pipe after stopping water, be " stagnant water " and as time passes gradually cooling become cool, if in the north cold winter, very easily occurring freezes makes the phenomenon of water pipe explosion, influences service life.

Four, electrical heating inconvenience: overcast and rainy in order to prevent, the solar water heater hot water temperature is low excessively, usually in water tank, dispose electric heating tube, but this mode of heating causes each heating all whole box water all must be heated, if only need a small amount of water, also be so, so it is non-adjustable to add the hot water amount, use dumbly, power consumption is big.

Five, go up the water troublesome poeration: because adopt non-press-bearing water tank, so, after the water in water tank is used up, needing hand switch, last water can't realize automatically going up water, troublesome poeration.

Six, solar water heater must be higher than the use point, and reaches certain height, the record activity that restriction is arranged.

The purpose of this utility model is to provide a kind of conversion equipment of solar water heater, it is applicable to cooperating between existing solar water heater and the common electrical water heater, realize using water wisely, water temperature stability, minimizing energy consumption, convenient use operate, antifreeze, effect such as increase the service life.

To achieve these goals, solution of the present utility model is:

The conversion equipment of solar water heater, mainly by two three-way magnetic valves, pump, three thermocouples and control panel are formed, wherein, two three-way magnetic valves are connected on the cold of electric heater respectively, on the hot-water line, and cold with solar water heater respectively, hot-water line communicates, pump is connected between the cold water pipe of solar water heater and electric heater, three thermocouples be located at respectively in the water tank of solar water heater and electric heater and and solar water heater and electric heater between link cold, in the heat-insulation layer of hot-water line, three-way magnetic valve, pump, thermocouple all be connected with control panel and by control.

After adopting said structure, the utility model is applicable to cooperating between existing solar water heater and the common electrical water heater.When water, enter the switch that the periodic duty state can cut off control panel midway for preventing water, this moment, two three-way magnetic valves neitherly communicated with the hot and cold water pipe of solar water heater, and institute's water is directed to electric heater.After stopping water, the switch of closed amputation control panel, this moment, the utility model was in normal operating conditions or periodic duty state, when recording hot water temperature in the solar water heater, thermocouple is higher than cold to a certain predetermined value and solar water heater of hot water temperature in the electric heater, when coolant-temperature gage is lower than a certain antifreeze predetermined value in the hot-water line heat-insulation layer, enter the periodic duty state, at this moment, two three-way magnetic valves of control panel control make the cold of solar water heater and electric heater, hot-water line communicates, solar water heater and electric heater all disconnect with water source and hot water tap, the work of pump trigger is replaced the water in the electric heater to solar water heater.After time-delay finished, pump quit work, and two triple valves switch to normal operating conditions, that is, the hot and cold water pipe of electric heater communicates and do not communicate with solar water heater and hot water pipe with water source and hot water tap respectively.

And the improvement solar water heater that is equipped with behind the utility model and the electric heater is compared with existing solar water heater, promptly has following effect:

One, using water wisely: because the water during water is directed to electric heater, so, during water, re-use after needn't bleeding off a part of cold water earlier, accomplished " boiling water instant heating ", so but using water wisely, and use also and make things convenient for.

Two, water temperature stability: the water during because of water is directed to electric heater, so hot water or cold water's source pressure is identical, so the exhausted phenomenon of not having " sometimes hot and sometimes cold ", comfort is good.

Three, antifreeze: because when temperature in the hot and cold water pipe heat-insulating layer of solar water heater is lower than a certain antifreeze predetermined value, control panel can be replaced the water in the electric heater to solar water heater by control pump, produce circulation, so, prevented winter in north cold, the phenomenon that makes the water pipe explosion of freezing " stagnant water " in the hot and cold water pipe of solar water heater takes place, and has prolonged service life.

Four, electrical heating is convenient: because be higher than hot water temperature in the electric heater extremely during a certain predetermined value as the hot water temperature in the solar water heater, control panel can be replaced the water in the electric heater to solar water heater by control pump, like this, water in the electric heater always is in the highest water temperature or the highest approaching water temperature of whole system, and when solar water heater is adopted the heating of heat deficiency needs, each heating all need only get final product the whole heating of the warm water in the electric heater, so, it is few to add the hot water amount, basis water temperature height, power consumption is little.

Five, upward water is easy to operate: the water during because of water is directed to electric heater, so, in each water, just go up water automatically, realized automatically going up water, easy to operate.

Six, solar water heater can arbitrarily be arranged in the position that is higher than, equals, is lower than with water spot, and is convenient, flexible.

Below in conjunction with accompanying drawing and preferred embodiment, the utility model is further described.

Fig. 1 is the utility model embodiment one structural representation;

Fig. 2 is that A-A of Fig. 1 is to sectional view;

Fig. 3 is the utility model embodiment two structural representations.

Please refer to shown in Figure 1ly, be the utility model embodiment one, be installed between commercially available solar water heater T and the commercially available pressure-bearing electric heater D, commercially available solar water heater T is improved.

This conversion equipment mainly by two three-way magnetic valves 1, pump 2, three thermocouples 3 and control panel 4 water source imports with and electric heater outlet 6 form.Wherein, two three-way magnetic valves 1 are connected on the cold of electric heater D respectively, hot-water line D1, on the D2, and cold with solar water heater T respectively, hot-water line T1, T2, water source import 5, electric heater outlet 6 communicates, pump 3 is connected on solar water heater T, between cold water pipe T1 and the respective electrical magnet valve, three thermocouples 3 are located at the water tank T3 of solar water heater T and electric heater D respectively, among the D3 and solar water heater T cold, hot-water line T1, in the T2 heat-insulation layer, cooperate shown in Figure 2, solar water heater T's is cold, hot-water line T1, T2 and thermocouple 3 and lead thereof are coated togather by heat-insulation layer, three-way magnetic valve 1, pump 2, thermocouple 3 all be connected with control panel 4 and by control.

The switch of manual closing control panel 4, this moment, the utility model was in operate as normal or periodic duty state, when recording hot water temperature among the solar water heater T water tank T3, thermocouple 3 is higher than hot water temperature among the electric heater D water tank D3 to a certain predetermined value (as 5 ℃) and solar water heater T's is cold, hot-water line T1, when temperature is lower than a certain antifreeze predetermined value (as 5 ℃) in the T2 heat-insulation layer, thermocouple 3 reaches control panel 1 with this information, make the cold water pipe T1 of solar water heater T and electric heater D by two three-way magnetic valves 1 of control panel 1 control, D1 communicates, water source import 5 and T1, D1 cuts off, hot-water line T2, D2 communicates, electric heater outlet 6 and T2, D2 cuts off, pump 2 trigger work, water among the electric heater D water tank D3 is replaced to solar water heater T water tank T3, finish to delaying time, pump 2 quits work, and magnetic valve resets., this moment, two three-way magnetic valves 1 neitherly communicated with hot and cold water pipe T1, the T2 of solar water heater T, and used hydraulic pressure equals cold water source hydraulic pressure, and used hot water comes from the water tank D3 of electric heater D.

Please refer to shown in Figure 3ly again, be the utility model embodiment two, be with the utility model and solar water heater T, pressure-bearing electric heater D one-body molded be an entire product, the convenient purchase, its concrete structure is identical with last embodiment, so do not give unnecessary details.

Claims

1, the conversion equipment of solar water heater, it is characterized in that: mainly by two three-way magnetic valves, pump, three thermocouples and control panel are formed, wherein, two three-way magnetic valves are connected on the cold of electric heater respectively, on the hot-water line, and cold with solar water heater respectively, hot-water line, cold water source and hot water outlet communicate, pump is connected between the cold water pipe three-way magnetic valve of solar water heater and electric heater, three thermocouples are located in the water tank of solar water heater and electric heater respectively and solar water heater cold, in the hot-water line heat-insulation layer, three-way magnetic valve, pump, thermocouple all be connected with control panel and by control.