Water heater can be divided into quick formula, positive displacement and storage-type three classes on structure.Fast the water heating process of formula water heater is carried out with flowing of water, can be fast and heat supply water continuously, and the heat transfer efficiency height, its shortcoming is the heat supply water yield and water temperature instability, and bigger to the water heater power requirement.Displacement type water heater is equivalent to an arcola, its advantage is that the heat accumulation water yield is big, can be simultaneously to a plurality of taps (drenching fluffy) hot-water supply, shortcoming is that cost is higher, volume space big, that take kitchen or toilet is bigger, is applicable to that not too common residential building uses.Storage-type electric water heater is except existing the bigger shortcoming in the space that takies kitchen or toilet with displacement type water heater is same, and also having a shortcoming is exactly can not realize multiple spot heat supply water simultaneously to an EXIT POINT heat supply water, uses very inconvenient.
At the existing product above shortcomings, the purpose of this utility model is to provide a kind of split type water heater, it is with storage tank and heater split design, utilize natural temperature differential gravity circulation theory, continuous heat cycles by cold water in hot water and the storage tank in up, the descending water pipe realization heater makes the interior water heating of storage tank and keeps constant temperature.
Technical solutions of the utility model are as follows:
This split type water heater is made up of heater, heat preservation storage water tank and electric controller three parts, heater and heat preservation storage water tank split design, be communicated with up, descending water pipe between them, the hot water outlet pipe is connected on the heat preservation storage water tank, and cold water inlet links to each other with storage tank, heater or uplink and downlink water pipe.
Electric controller comprises power supply, timing circuit, temperature control circuit, excessive low water level protection circuit and sound light alarming circuit; timing circuit links to each other with heater with temperature control circuit; the level sensor of excessive low water level protection circuit is installed in the heat preservation storage water tank, and sound light alarming circuit connects the water level protection circuit.Heater can be common electric heater or gas heater.
The course of work of this water heater is: by running water pipe to the water heater moisturizing, with heater water is heated, and realize in the heater that by up, descending water pipe the natural temperature differential gravity of cold water circulates in the hot water and storage tank, thereby by continuous heating with circulate, make the cold water in the storage tank become hot water, and keep constant temperature by temperature control circuit.
The advantage of this water heater is:
1. adopt and divide body structure, storage tank that can volume is bigger peace hangs over the ceiling in room or external wall of house etc. and locates, heater and electric controller are located at the position of user's handled easily, alleviate water heater taking greatly to the indoor useful space, the volume of storage tank can be done to enough big (more than 80 liters) like this, fully satisfies user's water needs; And maintenance is also convenient.
2. the uplink and downlink water pipe is set dexterously, has utilized hot water or cold water's the interior water of natural temperature differential gravity circulation theory heating storage tank, do not need other make-up water pump, simple in structure, feasible.
3. be suitable for various energy resources modes such as electricity, natural gas, liquefied gas, coal gas, can be widely used in the bath hot water supply of residential building, hairdressers' room, dormitory.
Below in conjunction with drawings and Examples the utility model is described further:
Embodiment: as shown in Figure 1, split type water heater is made up of heat preservation storage water tank 1, heater 2 and electric controller 3.Heat preservation storage water tank 1 is common enclosed heat preservation hot water tank, and heater 2 is the common electrical water heater.Adopt rising main 4 and descending water pipe 5 to be communicated with between heat preservation storage water tank 1 and the heater 2, cold water inlet 6 links to each other with heater 2 with descending water pipe 5, and hot water outlet pipe 7 directly is connected on the heat preservation storage water tank 1, on the hot water outlet pipe 7 and establish a plurality of taps 8.Establish air bleeding valve 9 on the heat preservation storage water tank 1.
The structure of electric controller as shown in Figure 2; provide power supply to timing circuit, excessive low water level protection circuit and electric heater respectively by power supply; the sensor of excessive low water level protection circuit is located in the heat preservation storage water tank; to receive water level signal; and realization excessive low water level protection; the excessive low water level protection circuit is also established and is shown and acoustic-optic alarm, so that report to the police temperature-control circuit control electric heater during the lack of water position.Each circuit of this electric controller is integrated on the circuit board, assembles with the heater one.