CN201706711U - Heat exchange water tank between air energy main machine and solar energy water tank - Google Patents

Abstract

The utility model discloses a vertical type coil heat exchange water tank used between an air energy water heater main machine and a solar water heater water storage tank, particularly, a water outlet on the top end of the heat exchanger water tank aims at a water outlet of the center of the bottom portion of the cylindrical side surface of a solar energy water tank through vertically arranging the heat exchange water tank on the lower surface of the center of a water tank of a household type solar energy water heater, which are communicated by vertical water pipes, the lower end of the side surface of the vertical type coil heat exchange water tank is provided with one or more water inlets, the water inlets are connected with feed water pipes, and are connected with water outlets on the bottom portion of the solar energy water tank in one or more paths, energy is exchanged through using the temperature, pressure and proportion difference between water in the vertical heat exchange water tank and a solar energy water storage tank to naturally cycle, heat energy produced by an air energy water heater is effectively transported to the solar energy water heater water storage tank to heat, the mounting is simple, the cost is lower, and the heat exchange efficiency is increased.

Description

Heat-exchanging water tank between a kind of air energy main frame and the solar water container

Technical field: the utility model relates to a kind of vertical heat-exchanging water tank of column type that is used between domestic air energy water heater main frame and the solar water heater water tank, particularly this heat-exchanging water tank vertically be installed in solar water heater water tank below, and water pipe is communicated with this heat-exchanging water tank with solar water container, under situation without water circulating pump, by Natural Circulation, air-source water heater is discharged in the water tank that heat in the heat exchanger water tank is delivered to solar water heater effectively water is heated.

Background technology: at present, domestic air can the water heater main frame and solar water heater water tank between the mode of heat-shift have three kinds: the one, direct heating promptly directly is placed on the heat exchange coil of air-source water heater in the storage tank of solar water heater water is directly heated; The 2nd, the forced circulation heating, promptly the water circulating air can heat the water forced circulation in the solar water heater storage water tank by water pump operation by the water heater main frame; The 3rd, the horizontal coiled-tube heat-exchanging water tank is installed between family expenses air-source water heater main frame and solar water heater water tank, the horizontal tank shape coil pipe heat-exchanging water tank that is parallel to solar water container and is communicated with the solar water container inner bag promptly is installed below solar water heater water tank, temperature difference Natural Circulation by water heats the water in the solar water heater storage water tank, there is following deficiency in these three kinds of mode of heatings: the one, if adopt direct-fired mode, having accelerated heat exchange coil because of the high-temperature-hot-water of solar water heater generation is corroded, the speed of fouling, reduce the heat exchange efficiency of pocket energy water heater, shortened machine life; The 2nd, if adopt the forced circulation heating, rising of complete machine cost and fault are increased because of having increased water pump; The 3rd, if adopt a jar type horizontal coiled-tube heat-exchanging water tank natural circulation heating, because of water moves very slow in the axial horizontal direction of inner bag, the spiral heat exchange coil that heated water does not obtain the varying level position continues heating, so it is slower that the coolant-temperature gage of unit volume rises, the temperature difference of peak level and lowest water level is also little, so the efficient of heating is not high.

Summary of the invention: for overcoming the deficiencies in the prior art, the utility model provides a kind of vertical heat-exchanging water tank of column type that is used for heat-shift between domestic air energy water heater main frame and the solar water heater water tank.The vertical heat-exchanging water tank of described column type is placed under the center of solar water heater water tank vertically, it has inner bag, outer courage and in, heat-insulation layer between the outer courage, heat exchange coil is arranged in inner bag, be provided with water pipe head in the perforate of the top of heat-exchanging water tank inner bag, this joint is communicated with by water pipe and solar water heater storage water tank, perforate is provided with water pipe head on the side of heat-exchanging water tank inner bag bottom end vicinity, this joint is communicated with by water pipe and solar water heater storage water tank, perforate is provided with the refrigerant joint of two connection heat exchange coils on the face of cylinder of heat-exchanging water tank inner bag, this joint can be communicated with by the water heater main frame by refrigerant pipe and domestic air, when family expenses air-source water heater main frame moves, water in the heat-exchanging water tank inner bag moves upward rapidly after being heated by heat exchange coil, heated water is heated by the vertical heat exchange coil that is installed in the heat-exchanging water tank inner bag from bottom to up successively gradually, thereby accelerated the movement velocity of water in the heat-exchanging water tank inner bag, strengthened the temperature difference of water, improved the speed that water circulates between heat-exchanging water tank and solar water container, not only improve heat exchange efficiency, and reduced the degree of coil pipe fouling.

Formation of the present utility model: by the inner bag of vertical air energy heat-exchanging water tank, outer courage, heat exchange coil, the polyurethane thermal insulation layer, water inlet, delivery port, the refrigerant joint, connect compositions such as water pipe and coolant connecting tube, at vertical air can be heat exchange coil 19 in the inner bag 15 of heat-exchanging water tank 21, the air inlet 24 of heat exchange coil 19 is connected the gas outlet of main frame 1 by refrigerant pipe 27, the outlet 23 of heat exchange coil 19 is connected the import of main frame 1 by refrigerant pipe 26, interlayer between inner bag 15 and the outer courage 16 is a polyurethane thermal insulation layer 17, the water inlet 18 of vertical heat-exchanging water tank 21 is connected with 11 with the water tank bottom delivery port 9 of solar water heater with 25 by water pipe 14 respectively with 22, the top delivery port 13 of vertical heat-exchanging water tank 21 is connected with the water tank bottom center water inlet 10 of solar water heater by water pipe 12, in the inner bag 4 of solar water heater, water 7 is housed, in the inner bag 15 of vertical heat-exchanging water tank 21, water 20 is housed, by water pipe 12,14 and 25 are communicated with water 7 and the water in the vertical heat-exchanging water tank 21 20 in the solar water heater water tank.

Compared with the prior art, the beneficial effects of the utility model: the one, reduced that heat exchange coil is corroded, the degree of fouling, improve efficient, prolonged the life-span.Because the height of water is lower than the height of water in the solar storage water tank in the vertical air energy heat-exchanging water tank, so the high-temperature-hot-water in the solar storage water tank can not enter in the air energy coil heat exchanger, air energy heat exchange coil is corroded, the degree of fouling thereby reduced, and has improved efficient, has prolonged the life-span; The 2nd, simplified the manufacturing process of solar storage water tank, reduced production cost.With at present in solar storage water tank the production technology of built-in heat exchange coil compare, the utility model makes that with the refrigerant interface manufacturing process of solar water container is the same with production regular solar water tank because of heat exchange coil is not set in solar water container, not only simple, and reduced cost; The 3rd, accelerated the Natural Circulation speed of water, improved heat exchange efficiency.Compare with the horizontal tank shape coil pipe heat-exchanging water tank that level is installed, heat-exchanging water tank of the present utility model is because of vertically being installed in below the solar water container, its top and bottom water-head are much bigger more than the water-head of the horizontal heat-exchanging water tank of level on the one hand, then the temperature difference of top and bottom is big, on the other hand when the water in the vertical heat-exchanging water tank is heated by coil pipe, water will flow through the vertical whole spiral heat exchange coil that is distributed in the inner bag from bottom to up, water is heated gradually, water temperature upwards increases progressively gradually, the temperature difference increases, flow velocity increases, and has accelerated circulation, thereby has improved heat exchange efficiency.

Description of drawings: 1. domestic airs energy water heater main frame, 2. solar water container water inlet, 3. steam vent among the figure, 4. solar water container inner bag, 5. outer courage, 6. polyurethane thermal insulation layer of solar water container, 7. water, 8. solar water container delivery port, 9. solar water container bottom delivery port, 10. solar water container bottom centre water inlet, 11. solar water container bottom delivery port, 12. water pipes, 13. vertical heat-exchanging water tank top delivery ports, 14. water pipe, 15. vertical heat-exchanging water tank changes inner bag, 16. vertical heat-exchanging water tanks change outer courage, 17. polyurethane thermal insulation layers, 18. vertical heat-exchanging water tank bottom water inlet, 19. heat exchange coil, 20 water, 21. vertical heat-exchanging water tanks, 22. vertical heat-exchanging water tank bottom water inlet, 23. refrigerant exit, 24. refrigerant imports, 25. water pipes, 26. coolant connecting tube, 27. coolant connecting tubes.

The specific embodiment: as shown in the figure, the vertical heat-exchanging water tank 21 of vertical placement on the mounting plane below the solar water heater water tank center, make vertical heat-exchanging water tank top delivery port 13 aim at solar water container bottom centre water inlet 10, air energy main frame 1 is installed near vertical heat-exchanging water tank 21, in the inner bag 15 of vertical heat-exchanging water tank 21, be heat exchange coil 19, interlayer between inner bag 15 and the outer courage 16 is a polyurethane thermal insulation layer 17, top delivery port 13 outside the upper base installation of inner bag 15 is stretched out outside the courage 16, inner bag 15 by the side of going to the bottom on install stretch out outside water inlet 18 and 22 outside the courage 16, on the side of inner bag 15, refrigerant import 24 and the refrigerant exit 23 that stretches out outside the outer courage 16 is installed respectively down, by inner bag 15, outer courage 16, polyurethane thermal insulation layer 17, heat exchange coil 19, water inlet 18 and 22, delivery port 13 and refrigerant import 24 and refrigerant exit 23, form vertical coil pipe heat-exchanging water tank 21, the two ends of heat exchange coil 19 link to each other with refrigerant exit 23 with refrigerant import 24 respectively, the two ends of coolant connecting tube 26 link to each other with the import of refrigerant exit 23 with air energy main frame 1 respectively, the two ends of coolant connecting tube 27 link to each other with the outlet of refrigerant import 24 with air energy main frame 1 respectively, water pipe 12 1 ends link to each other with the top delivery port 13 of vertical heat-exchanging water tank 21, the other end links to each other with solar water container bottom centre water inlet 10, water pipe 14 1 ends link to each other with the water inlet 18 of vertical heat-exchanging water tank 21, the other end links to each other with solar water container bottom delivery port 9, water pipe 25 1 ends link to each other with the water inlet 22 of vertical heat-exchanging water tank 21, and the other end links to each other with solar water container bottom delivery port 11.

Operation principle: when the water temperature in the solar water container is lower than setting value (as 35 ℃), then air can must electric startup begin to heat by main frame 1, the high-pressure outlet output HTHP Working medium gas of main frame 1 enters heat exchange coil 19 after refrigerant pipe 27 and refrigerant import 24, heat exchange coil 19 is with the water 20 in the vertical heat-exchanging water tank 21 of heat transferred, the temperature of water 20 is risen gradually and move rapidly to the top by the bottom of inner bag 15, when the top end water temperature of inner bag 15 greater than solar water container in during the temperature of water 7, its density is less than the density of water in the solar water container 7, the top hot water of inner bag 15 will rise in the solar water container through water pipe 12, and the water of lower temperature is heated through the bottom that water pipe 14 and 25 will drop to the inner bag 15 of vertical heat-exchanging water tank 21 in the solar water container, heat in the water 20 is delivered among the water 7 gradually, such process moves in circles, and constantly the water in the solar water container 7 is heated to the temperature that needs.

After heat exchange coil 19 heat exchange, outlet 23 output cryogenic high pressure working medium by coil pipe 19, this working medium is in coolant connecting tube 26 enters main frame 1, after expansion valve expansion step-down, enter evaporimeter, heat flashes to the low-temp low-pressure Working medium gas rapidly in the absorption air, and this low-temp low-pressure Working medium gas is got back to compressor by the compressor return air pipe, is compressed into high temperature and high pressure gas output once more, such process moves in circles, and produces hot water thereby constantly produce heat.

Claims (1)

1. One kind be used for domestic air can the water heater main frame and domestic solar water heater's water tank between the vertical coil pipe heat-exchanging water tank of heat-shift, it is characterized in that this vertical coil pipe heat-exchanging water tank is installed in below the solar water heater water tank center vertically, be provided with water swivel in the top perforate of vertical heat exchanger water tank, this water swivel is connected on the water swivel of domestic solar water heater's water tank bottom center by the water pipe of vertical, be provided with one or more water swivel at vertical heat-exchanging water tank by perforate on the side of bottom, all water swivels are communicated with the storage tank of solar water heater by water pipe, and this heat-exchanging water tank is one and has inner bag, in outer courage reaches, interlayer fills the polyurethane thermal insulation layer and the column type vertical disc heat exchange of heat pipe of heat exchange coil and refrigerant joint is installed in inner bag between the outer courage.

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