The utility model content
For addressing the above problem, the purpose of this utility model provides the anticorrosion anti-overheated press-bearing water tank of a kind of solar water heater, adopt external open indirect heat exchange mode, this kind cisten mechanism is reasonable in design, manufactures easily, greatly broken through the restriction of production and processing level, and the water tank cost is relatively low, and is safe and reliable, corrosion resistant, heat-resisting, long-term operation performance is stable, the cost performance height.
For achieving the above object, the utility model is by the following technical solutions:
The anticorrosion anti-overheated press-bearing water tank of a kind of solar water heater, comprise heat exchange jacket, enamel inner container and shell, shell is provided with water inlet pipe and outlet pipe, water inlet pipe and outlet pipe are communicated with enamel inner container, the two ends of shell are separately installed with a left side, right aling cap, it is characterized in that: be furnished with heat exchange jacket on the outer wall of enamel inner container, heat exchange jacket is made by corrosion resistant plate, the internal face of heat exchange jacket is an arc surface, the internal face of heat exchange jacket fits tightly together by the outside wall surface of thermal conductivity good interface material and enamel inner container, the outside wall surface of heat exchange jacket has the installing hole of the vacuum heat collection pipe that is used to peg graft, installing hole is communicated with the inner chamber of heat exchange jacket, has inlet on the heat exchange jacket, overfall, steam drain; The position of overfall is higher than inlet, and the position of steam drain is higher than overfall.
Described heat exchange jacket is fan-shaped, and the arc angle of inner wall surface thereof less than 360 degree, is filled with insulation material in the periphery of enamel inner container and heat exchange jacket greater than 15 degree.
Described heat exchange jacket is a cylindrical shape, and the arc angle of inner wall surface thereof is 360 degree, is filled with insulation material in the periphery of heat exchange jacket.
Described boundary material has compressibility, is compressed between heat exchange jacket and the enamel inner container, and boundary material is covered with the heat exchange jacket internal face.
Described enamel inner container is made up of base material and enamel layer, and base material is made by low-carbon steel material, and enamel layer is laid on the inwall of enamel inner container.
Described heat exchange jacket with the relative position of enamel inner container is: the symmetrical center line of heat exchange jacket sector crosssection overlaps with the horizontal center line of enamel inner container circular section.
The relative position of described heat exchange jacket and enamel inner container is: the angular range of the horizontal center line of the symmetrical center line of heat exchange jacket sector crosssection and enamel inner container circular section is greater than 0 degree, less than 90 degree.
The utility model has following advantage:
Heat exchange jacket is to be made by stainless steel material, fits on the enamel inner container.The heat exchange jacket transfer working medium in heat does not directly contact with the enamel inner container internal hot-water, and because its open operation, inside does not have pressure, high temperature can not occur, therefore is difficult to be corroded.At present, existing enamel technology maturation is reliable, and this press-bearing water tank adopts enamel inner container, stable performance, and corrosion resistance is strong.Heat exchange jacket and enamel inner container are realized fitting tightly by boundary material compressible and that have a high-efficiency heat conduction performance, and its production technology is simple, and is easy to make.Because heat exchange mode is open indirect type, heat-transfer working medium dependence Natural Circulation flows and carries out the heat transmission, when water temperature is higher in the water tank, to engender heat build-up in the heat exchange jacket, heat-transfer working medium self temperature is quickened to raise and vaporization occurs, the heat-transfer working medium of vaporization attitude emits by gland steam exhauster again, and the result is that water tank superheating phenomenon can not occur.This product can be made into solar energy close-coupled bearing hot water device, and under the situation of environmental condition and collector area unanimity, its hot property surpasses other class solar energy close-coupled bearing hot water device.Well anticorrosion prevented that hot property was guaranteed the water heater life-span, the cost performance height.
The specific embodiment
Number in the figure
1 shell, 2 enamel inner containers, 3 water inlet pipes, 4 outlet pipes
5 left sealing caps, 6 right aling caps, 7 heat exchange jackets, 8 end faces
11 right sides, 10 left sides, 9 bottom surfaces, 12 internal faces
13 outside wall surface, 14 installing holes, 15 inlets, 16 overfalls
17 steam drains, 18 boundary materials, 19 insulation materials, 20 circular holes
21 feed tubes, 22 overflow pipes, 23 gland steam exhausters
Embodiment one
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the utility model is the anticorrosion anti-overheated press-bearing water tank of a kind of solar water heater, comprise shell 1, enamel inner container 2, shell 1 is provided with water inlet pipe 3 and outlet pipe 4, water inlet pipe 3 and outlet pipe 4 are communicated with enamel inner container 2, and the left and right two ends of shell 1 are separately installed with left and right capping 5,6.Can mend cold water to enamel inner container 2 by water inlet pipe 3.
Be furnished with heat exchange jacket 7 on the outer wall of enamel inner container 2, please refer to Fig. 5, in the present embodiment, heat exchange jacket 7 is fan-shaped, and the arc angle Ang1 of its inner face is greater than 15 degree, less than 360 degree.
Please refer to Fig. 8, Fig. 9, the end face 8 of heat exchange jacket 7, bottom surface 9, left side 10, right side 11, internal face 12, outside wall surface 13 are all made by corrosion resistant plate, internal face 12 is an arc surface, internal face 12 fits together by boundary material 18 and enamel inner container 2, boundary material 18 can be the heat conduction film, one end of the outside wall surface 13 of heat exchange jacket 7 has the installing hole 14 that a socket connects solar vacuum heat-collecting pipe, and installing hole 14 is communicated with the inner chamber of heat exchange jacket 7.
Have inlet 15, overfall 16, steam drain 17 on the end face of heat exchange jacket 7, the position of overfall 16 is higher than inlet 15, the position of steam drain 17 is higher than overfall 16, and inlet 15, overfall 16, steam drain 17 can be arranged on the left side 10, also can be arranged on the right side 11.
Be separately installed with feed tube 21, overflow pipe 22, gland steam exhauster 23 on inlet 15, overfall 16, the steam drain 17, feed tube 21, overflow pipe 22, gland steam exhauster 23 are stretched out by the left sealing cap 5 or the right aling cap 6 of its place end face correspondence, also can stretch out from shell 1 bottom or rear portion.
The periphery of enamel inner container 2 and heat exchange jacket 7 is filled with insulation material 19.
Please refer to Figure 10, Figure 11, the relative position of heat exchange jacket 7 and enamel inner container 2 is determined by the symmetrical center line L1 of heat exchange jacket 7 sector crosssections and the included angle A ng2 of the horizontal center line L2 of enamel inner container 2 circular sections, less than 90 degree, promptly the angle of Ang2 is the 0-90 degree to this included angle A ng2 greater than 0 degree.
Heat exchange jacket 7 and the relative position of enamel inner container 2 also can be that the symmetrical center line L1 of heat exchange jacket 7 sector crosssections overlaps with the horizontal center line L2 of enamel inner container 2 circular sections.Be that L1 and L2 angle are 0 degree.
The side-lower that heat exchange jacket 7 can be positioned at enamel inner container 2 as shown in figure 10, also can be the side top as shown in figure 11, be good with side-lower.
Please refer to Fig. 5, in preferred embodiments, the arc angle Ang1 optimum range of heat exchange jacket 7 inner faces is that 120 degree are to 150 degree.
Please refer to Figure 10, Figure 11, the best relative position of heat exchange jacket 7 and enamel inner container 2 is that the included angle A ng2 of symmetrical center line L1 and the horizontal center line L2 of enamel inner container 2 circular sections of heat exchange jacket sector crosssection 15 spends to 30 and spends, this position can effectively promote to make the annular flow state when water in the enamel inner container 2 is heated, and improves heat exchange rate.
Heat exchange jacket 7 and enamel inner container 2 are realized fitting tightly by boundary material 18 compressible and that have a high-efficiency heat conduction performance.Boundary material 18 plays the effect that is connected two walls, and boundary material 18 can be the heat conduction film, and boundary material 18 is the cloth shape, and compliance is good, has high compressibility, elasticity, flexibility, and has good pyroconductivity.The application of boundary material, make between heat exchange jacket 7 internal faces and enamel inner container 2 outside wall surface the slit can not occur, thereby make heat exchange jacket 7 internal faces and fitting tightly of enamel inner container 2 outside wall surface become possibility, simplified technology, reduced production cost, the manufacturing is more prone to.
Please refer to Fig. 2, Fig. 3, Fig. 4, position corresponding with installing hole 14 on the shell 1 is provided with circular hole 20.During use, solar vacuum heat-collecting pipe is plugged on the installing hole 14 of outside wall surface 13 of heat exchange jacket 7, injects heat-transfer working medium from inlet 15 in heat exchange jacket 7, when the liquid level of heat-transfer working medium rises to the height of overfall 16, stops filling.After the filling, heat-transfer working medium in the heat exchange jacket 7 enters solar vacuum heat-collecting pipe inside under the gravity effect, when solar radiation is to solar vacuum heat-collecting pipe, the heat-transfer working medium temperature raises, heat-transfer working medium in the vacuum tube and heat exchange jacket 7 transfer working medium in heat produce density contrast, cause the heat-transfer working medium of heat under the effect of buoyancy lift, to be raised in the heat exchange jacket 7, constantly heat water in the enamel inner container 2 by boundary material 18 again.During water, running water heads into from water inlet pipe 3, and the hot water in the enamel inner container 2 is ejected from outlet pipe 4.
Heat exchange jacket 7 is to open indirect type with the heat exchange mode of enamel inner container 2, heat-transfer working medium can Natural Circulation flow, when water temperature is higher in the water tank, to engender heat build-up in the heat exchange jacket 7, the heat-transfer working medium temperature is quickened to raise and vaporization occurs, the heat-transfer working medium of vaporization attitude emits by steam drain 17 again, and like this, enamel inner container 2 superheating phenomenon can not occur.Thereby guarantee the safety of whole press-bearing water tank, make water heater stable operation reliably and with long-term.
Embodiment two:
Please refer to Figure 12, heat exchange jacket 7 can be a cylindrical shape, and promptly the arc angle of its inner face is 360 degree.Be filled with insulation material 19 in the periphery of heat exchange jacket 7, boundary material 18 can be the heat conduction film, and boundary material 18 has compressibility, is compressed between heat exchange jacket 7 and the enamel inner container 2, and boundary material 18 is covered with the internal face of heat exchange jacket 7.Enamel inner container 2 is made up of base material and enamel layer, and base material is made by low-carbon steel material, and enamel layer is laid on the inwall of enamel inner container 2.