Existing electric heater adopts the accumulation of heat of single inner bag more or is hot mode, and the use that these single heating modes are electric heater has brought inconvenience.The power of heat-accumulation type hot hydrophone is less, needs the long period heating just can reach preset temperature, for satisfying a large amount of needs that use hot water, often increases the volume of water heater.The inconvenience that causes the heat-accumulation type hot hydrophone to install on the one hand, on the other hand, in long-time water utilizing process, because thermal power is little, the temperature decrease speed is fast, needs to stop using, and just can reach instructions for use after the wait of long period.And instant electric water heater's power is big, generally surpasses 6KW, and circuit load is excessive, needs the electricity consumption industrial siding, is not suitable for the average family power utilization environment.
For overcoming above deficiency, CN2319747Y discloses a kind of electric heater of post bake, adopts the structure of two groups of heaters, and one group is the water storage electric heater, is arranged on the bottom of inner bag, is used for preheating the water of inner bag to uniform temperature; Another group is quick electric heater, is arranged on the top or the outlet pipe top of inner bag, can carry out post bake to the hot water that is in keeping warm mode in the inner bag.The electric heater of this structure alleviated to a certain extent the water storage volume size and heat time heating time length contradiction, yet because two groups of heaters are arranged among the same inner bag, as required, two heaters are by turns to water heating all in the inner bag, still there is the slow problem of water outlet water temperature rising in spread heat.
Summary of the invention:
For overcoming the deficiencies in the prior art, the invention provides a kind of electric water heater with dual inner containers of separate type heating, primary heater heats the water body of different inner bags respectively with secondary heater, satisfies the needs of long-time hot-water supply.
The present invention is achieved in that
A kind of electric water heater with dual inner containers of separate type heating, comprise upper inner-liner, bottom inner container, primary heater, secondary heater, temperature control tube, water inlet pipe and outlet pipe, it is characterized in that primary heater is arranged at upper inner-liner inside, primary heater is around the upper end of outlet pipe, secondary heater is arranged at bottom inner container inside, is provided with communicating pipe between upper inner-liner and the bottom inner container.
For water heater of the present invention is worked better, but water heater of the present invention also is provided with the induction heat coolant-temperature gage, the temperature control tube of control primary heater and secondary heater connecting and disconnecting of the circuit, and temperature control tube is installed on the inside of bottom inner container.
Described temperature control tube also can be installed on upper inner-liner inside.
Further, described temperature control tube is two, is equipped with respectively in the upper and lower inner bag to control the temperature control tube of heater circuit separately.
Primary heater has the double action that preheats and heat immediately, and secondary heater works the effect of preheating, and works independently by two heaters of circuit control.
The experimental result of water heater of the present invention shows, separate type electric water heater with dual inner containers for 30～50L, 20 ℃ of inflow temperatures, the 4L/min flow, under the condition of 40 ℃ of constant temperature, continuous effluent is more than 20 minutes, and leaving water temperature is reduced to 38 ℃ and ended, and required preheating time and temperature are as shown in the table respectively:
||Preheating time (min)
||Preheat temperature (℃)
||Primary heater power (KW)
Above result shows that water heater of the present invention can satisfy hot water demand's amount in half an hour.
And under equal conditions, for traditional 1500W heat accumulating type 100L water heater, need preheat 250 minutes time rises to 75 ℃ with water temperature, and leaving water temperature is only reduced to 38 ℃ from 40 ℃ of constant temperature, can only keep 17.6 minutes, and show that the big capacity electric heater of traditional 100L could satisfy hot water demand's amount above 4 hours accumulation of heat.
Obviously, electric heater of the present invention has the incomparable advantage of conventional water heaters.Compare with traditional heat-accumulation type hot hydrophone, can reduce volume and use material, avoided the excessive defective of traditional immediately heating water heater power simultaneously again.When water heater of the present invention was in the accumulation of heat state, two heaters can preheat the cold water in the last bottom inner container; When electric heater was in the hot water output state, primary heater can heat rapidly immediately to the hot water of exporting, and reached to shorten heat time heating time, increased the effect of hot water output quantity.Two courages also play the transfiguration effect, adapt to summer with the hot water amount when little, and only courage is gone up in heating, and volume dwindles half, play that heating is faster, the effect of energy saving.
The specific embodiment
Embodiment 1: a kind of electric water heater with dual inner containers of separate type heating, comprise upper inner-liner 3, bottom inner container 9, primary heater 2, secondary heater 5, temperature control tube 6, water inlet pipe 7 and outlet pipe 8, primary heater 2 is arranged at upper inner-liner 3 inside, primary heater 2 is around the upper end of outlet pipe 8, secondary heater 5 is arranged at bottom inner container 9 inside, be provided with communicating pipe 1,4 between upper inner-liner 3 and the bottom inner container 9, temperature control tube 6 is installed on the inside of bottom inner container 9, the break-make of temperature control tube 6 control control primary heaters 2 and secondary heater 5 circuit.
Embodiment 2: temperature control tube 6 is installed on the inside of upper inner-liner 3.
Embodiment 3: temperature control tube 61 is installed on the inside of upper inner-liner 3, the connecting and disconnecting of the circuit of control primary heater 2, and temperature control tube 6 is installed on the inside of bottom inner container 9, the break-make of control secondary heater 5 circuit.