Courage splitting solar energy-saving cistern in the enamel courage
Technical field
The utility model relates to a kind of water tank technology, especially relates to courage splitting solar energy-saving cistern in a kind of enamel courage.
Background technology
Along with popularizing of solar water heater, the user is more and more higher to the functional requirement of water heater.The separated type solar water heater hot-water case of prior art, its structure generally all is to adopt the single water tank of straight wall type of stainless steel or carbon steel inwall to make, the boiler of this structure, its heat exchange function performance has been subjected to the restriction of structure, do not reach desirable state, in the winter of cold, often influenced the normal use of water heater.In addition, because the boiler inner bag adopts the stainless steel material manufacturing, not only increased the production cost of water heater, working life is also undesirable.
The utility model content
The technical problems to be solved in the utility model provides courage splitting solar energy-saving cistern in a kind of enamel courage that can effectively improve the heat exchange effect.
Technical problem to be solved in the utility model is achieved by the following technical solution: it comprises shell, heat-insulation layer, inner water tank, between shell and inner water tank, be provided with heat-insulation layer, inner water tank is provided with water inlet, delivery port, be provided with the heat exchange inner bag in the inside of inner water tank, the heat exchange inner bag is provided with circulation water inlet, circulating outlet.
Described inner water tank is provided with the auxiliary heating tube of electricity.
Described inner water tank and heat exchange inner bag all be provided with the enamel coating structure with water engaging surface.
The said structure that the utility model adopts has increased the heat exchange inner bag in inner water tank, possessed heat exchange function preferably.In addition, cabinet body is carried out enamel coating with general steel plate and is handled on all and water engaging surface, substituted stainless steel, has not only reduced the service life that material cost has also prolonged inner bag.
Description of drawings
Accompanying drawing is depicted as structural representation of the present utility model
The specific embodiment
By accompanying drawing as can be known, the courage splitting solar energy-saving cistern comprises shell 9, heat-insulation layer 5, inner water tank 1 in this enamel courage, between shell 9 and inner water tank 1, be provided with heat-insulation layer 5, inner water tank 1 is provided with water inlet 3, delivery port 4, be provided with heat exchange inner bag 6 in the inside of inner water tank 1, heat exchange inner bag 6 is provided with circulation water inlet 7, circulating outlet 8.Consider factors such as continuous overcast and rainy solar energy utilization can be affected, can also be provided with the auxiliary heating tube 2 of electricity by described inner water tank 1, satisfy the demand that the user has hot water to use at any time.In addition, inner water tank 1 and heat exchange inner bag 6 all be provided with the enamel coating structure with water engaging surface, utilize high temperature resistant, the corrosion resistant characteristics of enamel coating, thereby prolong the working life of inner bag.When operate as normal, the medium in the solar thermal collector is delivered to the heat exchange inner bag by flowing with heat, by the heat exchange wall of inner container heat is passed to the water of inner water tank again, thereby reaches the purpose that adds hot water.