CN102650468A

CN102650468A - Spherical solar water heater

Info

Publication number: CN102650468A
Application number: CN2011100470094A
Authority: CN
Inventors: 刘新广
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-28
Filing date: 2011-02-28
Publication date: 2012-08-29

Abstract

A spherical solar water heater comprises an inner shell and an outer shell, wherein both the inner shell and the outer shell are spherical or ellipsoid; the inner shell is made of a photic material or a heat conducting material; the outer shell is made of a photic material; a heat-insulating block is connected to the inner lower bottom of the outer shell; the inner shell is arranged in the outer shell and is connected with the heat-insulating block; an interval between the outer shell and the inner shell is called as a heat collecting cavity; the outer shell is fixed on a bottom plate; an air escape valve is made of a heat-insulating material; the lower end of the air escape valve penetrates the tops of the outer and the inner shells in sequence and is in sealed connection with the tops; due to the adoption of the air escape valve, air can only flow from the bottom up but not flow from the top down; when the heat collecting cavity is not vacuumized, a plurality of transversal through holes are punched in the section, between the air escape valve and the heat collecting cavity, of a pipe; when the heat collecting cavity is vacuumized, the punching of the through holes is avoided; an electric heater with a temperature control function is fixed in the inner shell; and a reflection board is arranged on the side, back to the sun, of the outer conical shell. The conical solar water heater has the advantages that explosion accidents are avoided; the cost is low; the service life is long; and the performance-price ratio is very high.

Description

The spherical solar water heater

Technical field

The present invention relates to solar utilization technique, particularly a kind of spherical solar water heater.

Background technology

Existing vacuum tube collector formula solar water heater, basic structure are the heat conduction end connection attemperaters at vacuum tube collector arranged side by side, and this water heater is mainly because of its vacuum tube collector structure and complex process cost height; And vacuum tube collector often bursts accident and takes place, and fears that hail attacks, so the life-span is not long.Moreover the vacuum tube collector of this type solar water heater and attemperater be fixedly mounted on roof or balcony with shelf, and it is big to take up space, and it is serious to go for a drive.In a word, this type spherical solar water heater cost performance is low.

Summary of the invention

The present invention designs a kind of spherical solar water heater, overcomes the defective of prior solar water heater, and is simple in structure, compact, the life-span is long, cost is low, cost performance is high.

The present invention realizes through following technical proposals.

Show like Fig. 1.Inner casing 3, shell 5 are spherical shell or ellipsoid shelly; Inner casing 3 usefulness light transmissive materials or Heat Conduction Material are made, if when making with Heat Conduction Material, being coated with existing high solar absorptance at its outer surface has the selective coating material of low radiance again or paint dark color (blackish green, be coated with coating such as dark, indigo plant); Shell 5 usefulness light transmissive materials are made; Lower bottom part connects heat insulation 2 in shell 5, and inner casing 3 places in the shell 5 and with heat insulation 2 and connects, and shell 5 leaves inner casing 3 one at interval, claims that this is spaced apart heat collector cavity; Shell 5 is fixed in base plate 1.

Air escape valve 6 is used the heat-insulation and heat-preservation material, the lower end of air escape valve 6 pass successively shell 5 top, inner casing 3 the top and with they sealed attachment, 6 of air escape valves let air run out of from bottom to top, do not allow air run from top to bottom into; If said heat collector cavity is not evacuated, then air escape valve 6 is on that section pipe between the heat collector cavity and beats some cross through hole, if heat collector cavity vacuumizes, does not then beat said through hole.

Pipe 8 penetrate successively base plate 1, shell 5, inner casing 3 and with they sealed attachment; Connect three-position valve door 9 in pipe 8 lower ends; Three-position valve door 9 have open the position for No. one, open the position for No. two, off-position (this time; Open the position for No. one and open the position for No. two and all be in closed condition), open the external cold water input in position No. one of three-position valve door 9, open the external hot water in position and export for No. two of three-position valve door 9.

Overflow pipe 4 penetrate successively base plate 1, shell 5, inner casing 3 and with they sealed attachment, connect valve 11 in its lower end.

The electric heater 7 of band temperature control function is fixed in the inner casing 3, and lead 10 is the power transmission line of electric heater 7, and lead 10 passes from inner casing 3, shell 5, base plate 1.

Back of the body sun one side at shell 5 is provided with reflector 12.Certainly, if receive under condition restriction or the inappropriate situation reflector 12 not to be set.

When using said spherical solar water heater, open valve 11 earlier, again cold water is inserted No. of three-position valve door 9 and open the position, operation three-position valve door is opened the position 9 to No. one, and cold water gets into inner casing 3.When water level reached the upper end (among the figure shown in the dotted line) of overflow pipe 4 and flows out through valves 11 from overflow pipe 4 is dirty, valve-off 11 immediately.If inner casing 3 usefulness light transmissive materials are made, sunlight sees through shell 5, inner casing 3 successively, directly heats the water in the inner casing 3; If inner casing 3 usefulness Heat Conduction Materials are made, sunlight sees through shell 5 back heating inner casings 3 successively, and inner casing 3 adds hot water again.All the time according to date or on the date of severe cold, but opening electric heater 7, said spherical solar water heater just uses as water heater, but also opening electric heater 7 can prevent that said spherical solar water heater is by spalling.When using hot water, operation three-position valve door is opened the position for 9 to No. two and is promptly flowed out.

Reflector 12 can arrive shell 5 with the sunlight reflected of the positive side of shell 5 back ofs the body, increases solar energy utilization ratio.

When water in the inner casing 3 is heated and when expanding, can the air of inner casing 3 inner tops be released air escape valve 6.If said heat collector cavity is not evacuated, then heat collector cavity is heated and the air that expands, will run out of many through air escape valve 6 (usefulness be in beaten on that section pipe between the heat collector cavity some cross through hole); If said heat collector cavity vacuumizes, air escape valve 6 usefulness are in does not get through the hole on that section pipe between the heat collector cavity.Certainly, heat collector cavity vacuumizes, and said spherical solar water heater heat insulating ability is fine, and heat collector cavity does not vacuumize, and runs out of many air owing to be heated, and said spherical solar water heater warmer also has heat insulating ability preferably.Take out and do not vacuumize, definite according to using geography, weather, environment and user to accept the wish of price.

The effect that the present invention is useful:

1, because said spherical solar water heater is simple and compact for structure, materials are economized, and volume little (when not establishing reflector) need not expensive vacuum tube collector, and good manufacturability need not be installed shelf, so cost is low, easy care.

2, because said spherical solar water heater main body is spherical; Spherical its opposing atmospheric pressure (when vacuumizing) that makes far has affluence, makes its wind resistance, rain, hail ability strong, does not have vacuum tube collector and its its specific structure; There is not the problem of bursting, so the life-span is long.

3, said spherical solar water heater main body is spherical; Can gather sunlight greater than 180 ° of scopes (as reflector time scope be 360 °); And the solar water heater lighting scope of existing non-tracks sunlight formula is about 160 °; Therefore said spherical solar water heater is higher than the solar water heater utilization rate of existing non-tracks sunlight formula, although collecting efficiency possibly be lower than vacuum tube collector under the situation not vacuumizing, the thermal-arrest benefit is not low.And the solar water heater of tracks sunlight formula, the daylighting scope is 360 °, but the cost increase is many, and power consumption, reliability reduces.So said in a word spherical solar water heater has significantly high cost performance than prior solar water heater.

4, owing to above advantage, said spherical solar water heater.Have a extensive future, be prone to promote.

Description of drawings

Fig. 1 is a structural representation of the present invention.

The specific embodiment

Embodiment:

Claims

1. spherical solar water heater, it is characterized in that: inner casing (3), shell (5) are spherical shell or ellipsoid shelly; Inner casing (3) is made with light transmissive material or Heat Conduction Material, if when making with Heat Conduction Material, being coated with existing high solar absorptance at its outer surface has the selective coating material of low radiance again or paint dark color; Shell (5) is made with light transmissive material; Lower bottom part connects heat insulation (2) in shell (5), and inner casing (3) places in the shell (5) and with heat insulation (2) and connects, and shell (5) leaves inner casing (3) at interval, claims that this is spaced apart heat collector cavity; Shell (5) is fixed in base plate (1);

Air escape valve (6) is used the heat-insulation and heat-preservation material, the lower end of air escape valve (6) pass successively the top of shell (5), inner casing (3) the top and with they sealed attachment, air escape valve (6) only lets air run out of from bottom to top, do not allow air run from top to bottom into; If said heat collector cavity is not evacuated, then air escape valve (6) is on that section pipe between the heat collector cavity and beats some cross through hole, if heat collector cavity vacuumizes, does not then beat said through hole;

Pipe (8) penetrate successively base plate (1), shell (5), inner casing (3) and with they sealed attachment; Connect three-position valve door (9) in pipe (8) lower end; Three-position valve door (9) has to be left the position for No. one, opens position, off-position for No. two, when off-position, opens the position for No. one and all is in closed condition with opening for No. two; The external cold water input in position is left in No. of three-position valve door (9), opens the external hot water output in position No. two of three-position valve door (9);

Overflow pipe (4) penetrate successively base plate (1), shell (5), inner casing (3) and with they sealed attachment, connect valve (11) in its lower end;

The electric heater (7) of band temperature control function is fixed in the inner casing (3), and lead (10) is the power transmission line of electric heater (7), and lead (10) passes from inner casing (3), shell (5), base plate (1);

Back of the body sun one side at shell (5) is provided with reflector (12).