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Solar water tank with vacuum tubes

A solar water tank and vacuum tube technology, applied in the field of solar energy, can solve the problems of PP material deformation, inner tank corrosion, shortened service life, etc., and achieve the effects of long service life, long heat preservation time and simple production

Inactive Publication Date: 2010-10-06
颜景民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal insulation water tank of solar water heater is usually composed of shell, thermal insulation layer and inner tank. The inner tank is usually made of stainless steel plate. When the stainless steel plate is processed into a solar water tank, the surface protective layer will be destroyed. Due to long-term contact with water, stainless steel There will be a chemical reaction between the plate and the aqueous solution, oxygen in the water, etc., which will cause the inner tank to corrode, cause water leakage, and shorten the service life; and the stainless steel plate inner tank is also prone to scale and the heating effect is not obvious
Although there are also liners made of PP material at present, the temperature at the top of the vacuum tube can reach a high temperature of more than 200°C at the junction of the vacuum tube and the PP material liner when there is no water in the solar liner, and the temperature of the PP material is above 170°C It will soften until it melts. There is only a 5 mm thick waterproof silicone ring between the PP material liner and the vacuum tube, and the temperature drop does not exceed 20°C. In this way, the solar vacuum tube has exceeded 170°C when it is air-dried, and the PP material is easy to partially deform. Lead to water leakage in the inner tank and shorten the life of the solar water heater

Method used

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  • Solar water tank with vacuum tubes
  • Solar water tank with vacuum tubes
  • Solar water tank with vacuum tubes

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1, a vacuum tube solar water tank, including an inner tank 3, an outer shell, an insulation layer between the inner tank and the outer shell, a water inlet pipe, an outlet pipe and an exhaust pipe. The inner tank 3 is provided with a vacuum tube installation hole 4, The inner tank 3 is made of PP material, and there is an annular metal cooling ring 5 which is thermally bonded with the inner tank wall around the vacuum tube installation hole 4 of the inner tank 3 . Both the inner peripheral edge 2 and the outer peripheral edge 1 of the annular metal cooling ring 5 have folded edges facing one direction, and the height of the inner peripheral folded edge is greater than the height of the outer peripheral folded edge.

[0013] During manufacture, the PP material liner 3 with the reserved vacuum tube installation hole 4 is processed by blow molding, and the ring-shaped metal cooling ring 5 is stamped and formed by stainless steel plates. Then use the special heat...

Embodiment 2

[0014] Embodiment 2, a vacuum tube solar water tank, comprising an inner tank 3, an outer shell, an insulation layer between the inner tank and the outer shell, a water inlet pipe, an outlet pipe and an exhaust pipe, and the inner tank 3 is provided with a vacuum tube installation hole 4, The inner tank 3 is made of PP material, and there is an annular metal cooling ring 5 which is thermally bonded with the inner tank wall around the vacuum tube installation hole 4 of the inner tank 3 . Both the inner peripheral edge 2 and the outer peripheral edge 1 of the annular metal cooling ring 5 have folded edges facing one direction, and the height of the inner peripheral folded edge is greater than the height of the outer peripheral folded edge.

[0015] During production, the inner tank 3 is welded by extruding PP material, the vacuum tube mounting hole 4 on the inner tank is drilled by a rotary drilling device, and the annular metal cooling ring 5 is punched and formed by an aluminum...

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Abstract

The invention discloses a solar water tank with vacuum tubes, which comprises a liner, a shell, an insulating layer positioned between the liner and the shell, a water inlet pipe, a water outlet pipe and a vent pipe; the liner is evenly provided with vacuum tube mounting holes; the liner is made of plastics; annular metal radiating rings in heat seal with the wall of the liner are arranged on theperipheries of the vacuum tube mounting holes of the liner; the edge of the inner circumference and the edge of the outer circumference of each annular metal radiating ring are provided with flanges toward the same direction; and the height of the flange of the inner circumference is greater than that of the outer circumference. The solar water tank has the advantages that: because the liner is made of a PP material, the liner has the advantages of acid resistance, alkali resistance, corrosion resistance, high strength, low cost, no heat conduction, no scale formation, long heat preservation time, long service life and the like; and because the annular metal radiating rings are in heat seal on sealing ports of the vacuum tube mounting holes of the liner made of the PP material, the problemof water leakage caused by the deformation of the liner made of the PP material due to high temperature generated when the solar water tank is empty is solved, the phenomenon that the liner made of stainless steel is deformed under the action of atmospheric pressure because an air inlet port is not smooth is avoided, and the solar water tank has simple manufacture, low cost and long service life.

Description

technical field [0001] The invention relates to the field of solar energy, in particular to a vacuum tube solar water tank. Background technique [0002] Along with the continuous development of my country's economy, the utilization of solar energy is very popular, especially the solar water heater that is widely used at present has brought great convenience to people especially. The thermal insulation water tank of solar water heater is usually composed of shell, thermal insulation layer and inner tank. The inner tank is usually made of stainless steel plate. When the stainless steel plate is processed into a solar water tank, the surface protective layer will be destroyed. Due to long-term contact with water, stainless steel The steel plate and the aqueous solution, the oxygen in the water, etc. will have a chemical reaction, which will cause the inner tank to corrode, cause water leakage, and shorten the service life; and the stainless steel plate inner tank is also prone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/46
CPCY02E10/40
Inventor 颜景民
Owner 颜景民