CN103335417A - Vacuum tube pressure-bearing water heater without hot water storage tank - Google Patents

Abstract

The invention relates to a solar water heater, in particular to a vacuum tube pressure-bearing water heater without a hot water storage tank. The vacuum tube pressure-bearing water heater without the hot water storage tank comprises a plurality of solar vacuum tubes, a water inlet pipe, a plurality of heat exchange tubes, a water outlet pipe, a heat-preservation layer and phase change heat storage devices, wherein each phase change heat storage device is plated with a heat absorbing film layer, each solar vacuum tube is a transparent vacuum tube without a cladding layer, each phase change heat storage device is installed in one solar vacuum tube, each heat exchange tube is installed inside one phase change heat storage device, an inlet of each heat exchange tube is connected with the water inlet pipe, an outlet of each heat exchanger tube is connected with the water outlet pipe, and the heat-preservation layer wraps one end of each solar vacuum tube, one end of each phase change heat storage device, the water inlet pipe, the water outlet pipe, the connection portions between the water inlet pipe and the heat exchange tubes, and the connections portions between the water outlet pipe and the heat exchange tubes. The vacuum tube pressure-bearing water heater without the hot water storage tank has the advantages of being simple in design, convenient to install, and easy to produce. In addition, the vacuum tube pressure-bearing water heater without the hot water storage tank further has the advantages that cladding film arranged on the surface of each phase change heat storage device can be more beneficial to absorbing solar energy.

Description

No heat storage water tank vacuum tube bearing hot water device

Technical field

The present invention relates to a kind of solar water heater, particularly relate to a kind of no heat storage water tank vacuum tube bearing hot water device.

Background technology

A kind of solar water heater of prior art comprises heat collector, attemperater, connecting pipe and support, attemperater is contained in the top at support, be connected with vacuum tube, heat collector is contained in the front side at support, vacuum tube in the heat collector tilts to be inserted between the holder box and attemperater of the preceding side lower part of support, connecting pipe is contained in heat collector and attemperater, utilize hot water rising cold water to descend, hot water is transported to attemperater from heat collector, cold water is transported to heat collector from attemperater, the shortcoming of this solar energy is to contain attemperater, makes that the water heater volume is big, installs inconvenient, be difficult for and the building perfect adaptation, installation difficulty such as windproof and lightning protection are big, are subjected to weather or seasonal effect big, the heat supply instability.

Another kind of prior art is that Chinese patent application 200710156133.8 disclosures " Instant heating type solar water heater " comprise solar energy heat collection pipe and component holder, several solar energy heat collection pipes are arranged on the component holder, the mid-SU shape of disjunctor pipe tandem arrangement spare, solar energy heat collection pipe is inserted in the U-shaped mouth of SU shape tandem arrangement, inner flow tube in the solar energy heat collection pipe is inserted in the S shape passage of SU shape tandem arrangement spare, SU shape tandem arrangement spare is end to end, first SU shape tandem arrangement spare head end is near the water interface, and last SU shape tandem arrangement spare tail end picks out the water interface.This instant heating solar water heater does not need attemperater, and is easy for installation, but accumulates thermal energy differential, is not suitable for night, overcast and rainy use, and solar energy utilization ratio is low.

Also having a kind of prior art is that Chinese patent ZL 200620054881.6 discloses " phase-changing energy-storing solar water heater ", comprise the vacuum tube and the water storage barrel that are contained on support, water storage barrel is that outer bucket constitutes by upper shield fixed cover unification body, heat-insulation layer is arranged between the inner barrel and outer barrel, interior bucket is connected with vacuum tube, be contained in accumulation of energy heat exchange inner bag in the interior bucket, the accumulation of energy heat transferring medium has been arranged in this inner bag.This solar water heater adopts phase-change material to carry out accumulation of heat, and heat storage capacity is strong, the solar energy utilization ratio height, and heat supply is stable, but this solar energy still comprises water storage barrel, and volume is big, and the installation site is restricted, installs also very inconveniently, can not apply well.

Summary of the invention

In order to address the above problem, the present invention proposes a kind of no heat storage water tank vacuum tube bearing hot water device, need not heat storage water tank, do not take indoor (balcony) space, easy for installation, heat accumulating is in vacuum tube, better heat preservation, the solar energy utilization ratio height, heat supply is stable.

In order to achieve the above object, the present invention proposes following technical scheme:

No heat storage water tank vacuum tube bearing hot water device, it comprises several solar energy vacuum tubes, water inlet pipe, several heat exchanger tubes, outlet pipe, heat-insulation layer and phase change heat accumulator, described phase change heat accumulator outside is coated with the heat absorption rete; Described solar vacuum tube is the transparent vacuum pipe of no coating; Phase change heat accumulator is contained in solar energy vacuum tube; Heat exchanger tube is contained in phase change heat accumulator, and the import of heat exchanger tube connects water inlet pipe, and the heat exchanger tube outlet connects outlet pipe; Described heat-insulation layer is wrapped in solar energy vacuum tube and phase change heat accumulator one end outside, water inlet pipe and outlet pipe outside and water inlet pipe and outlet pipe and heat exchanger tube junction.

Described solar energy vacuum tube comprises outer glass pipe and inner glass tube, described outer glass pipe and the sealing of inner glass tube homogeneous end, other end opening, inner glass tube and outer glass pipe are nested in the same way, form a vacuum chamber at openend inner glass tube and outer glass pipe welding, described outer glass pipe and inner glass tube all are " U " OK.

Described heat exchange tube device is in phase change heat accumulator, and heat exchanger tube is " U " type.

Described heat exchanger tube is copper pipe.

Described phase change heat accumulator outermost tube pipeline material adopts stainless-steel pipe.

Described phase change heat accumulator the inside phase change heat storage material is inorganic salts energy storage phase-change material.

Described heat absorption rete is the magnetron sputtering rete.

Advantage of the present invention is simplicity of design, and is easy for installation, is convenient to produce, and the phase change heat accumulator surface coating more is conducive to absorb heat energy.

Description of drawings

Fig. 1 is schematic diagram of the present invention.

Fig. 2 is partial schematic diagram of the present invention.

The specific embodiment

For the present invention is further described, introduce below in conjunction with Figure of description:

With reference to accompanyingdrawing 1 and Fig. 2, no heat storage water tank vacuum tube bearing hot water device, it comprises several solarenergy vacuum tubes 1, water inlet pipe 2, severalheat exchanger tubes 3,outlet pipe 4, heat-insulation layer 5 and phasechange heat accumulator 6, described phasechange heat accumulator 6 outsides are coated withheat absorption rete 7; The transparent vacuum pipe that describedsolar vacuum tube 1 is no coating; Phasechange heat accumulator 6 is contained in solarenergy vacuum tube 1;Heat exchanger tube 3 is contained in phasechange heat accumulator 6, and the import ofheat exchanger tube 3 connects water inlet pipe 2, andheat exchanger tube 3 outlets connectoutlet pipe 4; Described heat-insulation layer 5 is wrapped in solarenergy vacuum tube 1 and phasechange heat accumulator 6 one end outsides, water inlet pipe 2 andoutlet pipe 4 outsides and water inlet pipe 2 andoutlet pipe 4 andheat exchanger tube 3 junctions.

With reference to accompanying drawing 2, described solarenergy vacuum tube 1 comprises outer glass pipe 1-1 and inner glass tube 1-2, described outer glass pipe 1-1 and the sealing of inner glass tube 1-2 homogeneous end, other end opening, inner glass tube 1-2 and outer glass pipe 1-1 are nested in the same way, form a vacuum chamber at openend inner glass tube 1-2 and outer glass pipe 1-1 welding, described outer glass pipe 1-1 and inner glass tube 1-2 all are " U " OK.

Describedheat exchanger tube 3 is installed in the phase change heat accumulator, andheat exchanger tube 3 is " U " type.

Describedheat exchanger tube 3 is copper pipes.

Described phasechange heat accumulator 6 outermost tube pipeline materials adopt stainless-steel pipe.

Described phasechange heat accumulator 6 the inside phase change heat storage materials are inorganic salts energy storage phase-change materials.

Describedheat absorption rete 7 is magnetron sputtering retes.

With reference to accompanyingdrawing 1, operation principle is that solar energy passes through phasechange heat accumulator 6surface coatings 7 absorption conversion heat energy, and thermal energy transfer is given phasechange heat accumulator 6 the inside inorganic salts heat accumulatings, stores.Open when water andmix water valve 8, running water enters in theheat exchanger tube 3 by water inlet pipe 2, and phasechange heat accumulator 6 discharges heat energy, and the water in theheat exchanger tube 3 is heated, and is used for bathing.During bathing, when reaching design temperature, auxiliary equipment 9 does not start, and does not reach design temperature as temperature, starts auxiliary equipment 9, is heated to design temperature.Auxiliary equipment 9 is electric heating, combustion gas, immediately heating water heater.

Claims (7)

1. do not have heat storage water tank vacuum tube bearing hot water device, it comprises several solar energy vacuum tubes, water inlet pipe, several heat exchanger tubes, outlet pipe, heat-insulation layer and phase change heat accumulator, it is characterized in that described phase change heat accumulator outside is coated with the heat absorption rete; Described solar vacuum tube is the transparent vacuum pipe of no coating; Phase change heat accumulator is contained in solar energy vacuum tube; Heat exchanger tube is contained in phase change heat accumulator, and the import of heat exchanger tube connects water inlet pipe, and the heat exchanger tube outlet connects outlet pipe; Described heat-insulation layer is wrapped in solar energy vacuum tube and phase change heat accumulator one end outside, water inlet pipe and outlet pipe outside and water inlet pipe and outlet pipe and heat exchanger tube junction.

2. no heat storage water tank vacuum tube bearing hot water device according to claim 1, it is characterized in that described solar energy vacuum tube comprises outer glass pipe and inner glass tube, described outer glass pipe and the sealing of inner glass tube homogeneous end, other end opening, inner glass tube and outer glass pipe are nested in the same way, form a vacuum chamber at openend inner glass tube and outer glass pipe welding, described outer glass pipe and inner glass tube all are " U " OK.

3. no heat storage water tank vacuum tube bearing hot water device according to claim 1 it is characterized in that described heat exchange tube device in phase change heat accumulator, and heat exchanger tube is " U " type.

4. no heat storage water tank vacuum tube bearing hot water device according to claim 1 is characterized in that described heat exchanger tube is copper pipe.

5. no heat storage water tank vacuum tube bearing hot water device according to claim 1 is characterized in that described phase change heat accumulator outermost tube pipeline material adopts stainless-steel pipe.

6. no heat storage water tank vacuum tube bearing hot water device according to claim 1 is characterized in that described phase change heat accumulator the inside phase change heat storage material is inorganic salts energy storage phase-change material.

7. according to the described no heat storage water tank vacuum tube bearing hot water device of claim 1, it is characterized in that described heat absorption rete is the magnetron sputtering rete.

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