The water tank of Teat pump boiler
Technical field: the utility model relates to a kind of water tank of Teat pump boiler.
Background technology: in the prior art, the coil pipe of heat-pump water-heater water tank inner bag outer surface is that the cross section is circular copper pipe mostly, and the coil pipe of this structure and the contact area of inner water tank are little, and heat-transfer effect is undesirable, and the price of copper product is comparatively expensive, makes the material cost of product be difficult to descend.In order to overcome these defectives, we develop the water tank of Teat pump boiler.
Summary of the invention: technical problem to be solved in the utility model is that a kind of good heat-transfer will be provided, the water tank of the Teat pump boiler that price is comparatively cheap.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises coil pipe and inner water tank, coil pipe is wrapped in the outer surface of inner water tank, coil pipe is the tubular body that the cross section is D shape, and the vertical plane of coil pipe is close to the outer surface of inner water tank, and coil pipe is made by aluminum alloy materials.
Be coated with heat-conducting silicone grease between described coil pipe and the inner water tank.
It also comprises tank shell and heat-insulation layer, and heat-insulation layer is arranged between inner water tank and the tank shell.
Described coil pipe is fixedlyed connected with inner water tank by connecting plate.
Described coil pipe circle and the spacing between the circle in the inner water tank bottom is little, and be big in the coil pipe circle and the spacing between the circle on inner water tank top.
Spacing between described coil pipe circle and circle staged from bottom to top increases progressively.
Spacing between described coil pipe circle and the circle smoothly increases progressively from bottom to top.
The utility model is compared the beneficial effect that is produced with background technology:
1, because the utility model adopts the coil pipe of D tee section, and coil pipe is made by aluminium alloy, effectively increased the contact area of coil pipe and inner water tank, heat with refrigerant in the coil pipe is transmitted in the water of inner water tank better, simultaneously, adopt aluminum alloy materials Alloy instead of Copper material can significantly reduce material cost.
Description of drawings: Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure enlarged diagram of coil pipe and inner water tank junction;
Fig. 3 is the three-dimensional structure diagram that coil pipe combines with inner water tank;
Fig. 4 is the second example structure schematic diagram of coil pipe.
The specific embodiment: referring to Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises coil pipe 1, inner water tank 2, tank shell 3 and heat-insulation layer 4, coil pipe 1 and inner water tank 2 are arranged in the tank shell 3, and heat-insulation layer 4 is arranged between inner water tank 2 and the tank shell 3.Coil pipe 1 is made by aluminum alloy materials, and is wrapped in the outer surface of inner water tank 2, and fixes by connecting plate 6 and inner water tank 2.Coil pipe 1 is the tubular body of D shape for the cross section, and the vertical plane 11 of coil pipe 1 is close to the outer surface of inner water tank 2, for improving the heat transmitting between coil pipe 1 and the inner water tank 2, is coated with heat-conducting silicone grease 5 between coil pipe 1 and the inner water tank 2.
Owing to influenced by density, there is the physical phenomenon of hot and cold water layering in water in the inner water tank, hot water is on inner water tank top, cold water is in the inner water tank bottom, be the water in the heating water tank inner bag more targetedly, coil pipe 1 circle and the spacing between the circle in inner water tank 2 bottoms are little, and be big in coil pipe 1 circle and the spacing between the circle on inner water tank 2 tops.Coil pipe 1 circle and spacing between enclosing can be that as shown in Figure 3 staged from bottom to top increases progressively (ignoring because of dodging the gap that parts produce), also can be smoothly increasing progressively from bottom to top as shown in Figure 4.