CN106091434A - A kind of hot water storage tank of finned length change - Google Patents
A kind of hot water storage tank of finned length change Download PDFInfo
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- CN106091434A CN106091434A CN201610461812.5A CN201610461812A CN106091434A CN 106091434 A CN106091434 A CN 106091434A CN 201610461812 A CN201610461812 A CN 201610461812A CN 106091434 A CN106091434 A CN 106091434A
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- hot water
- sloping portion
- tube
- prominent point
- fin
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
- F28D7/0025—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
- F28D7/0033—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes the conduits for one medium or the conduits for both media being bent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/124—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being formed of pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S2010/751—Special fins
- F24S2010/752—Special fins extending obliquely
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S2080/03—Arrangements for heat transfer optimization
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Dispersion Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a kind of solar heat-preservation water tank, including heat collector, hot water storage tank and radiating tube, radiating tube is arranged in hot water storage tank, and the hot water of described heat collector heating, through radiating tube, transfers heat to hot water storage tank by radiating tube；Described radiating tube is plate-fin radiating tube, described plate-fin radiating tube includes flat tube and the fin being arranged in flat tube, described fin includes the sloping portion favouring tube wall, by the prominent point of impact style processing on sloping portion, described prominent point is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion, along the flow direction of fluid, arranging multiple prominent point on sloping portion, described prominent point extends to the not homonymy of sloping portion.The present invention is extended to not homonymy by prominent point, it is possible to achieve higher heat exchange efficiency, reduces flow resistance, saves the energy further.
Description
Technical field
The invention belongs to field of solar energy, particularly relate to the solar energy system of a kind of accumulation of heat.
Background technology
Along with the high speed development of modern social economy, the mankind are increasing to the demand of the energy.But coal, oil, sky
So the traditional energy storage level such as gas constantly reduce, the most in short supply, cause rising steadily of price, conventional fossil fuel causes simultaneously
Problem of environmental pollution the most serious, these development that the most significantly limit society and the raising of human life quality.The energy
Problem has become as one of distinct issues of contemporary world.Thus seek the new energy, the most free of contamination cleaning energy
Source has become the focus of present people research.
Solar energy is a kind of inexhaustible clean energy resource, and stock number is huge, and earth surface is received every year
Solar radiant energy total amount be 1 × 1018KW h, for more than 10,000 times of world's year consumption gross energy.Countries in the world are the most too
The utilization of sun energy is as important one of new energy development, and the Chinese government the most clearly proposes to amass at Report on the Work of the Government
Pole development new forms of energy, wherein the utilization of solar energy is especially in occupation of prominent position.Arrive tellurian yet with solar radiation
Energy density little (about one kilowatt every square metre), and be again discontinuous, this brings certain being stranded to large-scale exploitation
Difficult.Therefore, in order to extensively utilize solar energy, not only to solve technical problem, and must be able to economically with conventional energy
Source is competed mutually.
Generally, the water of heat collector heating needs to pass to other fluids by the way of heat exchange, or carries out
Storage.But the water circulation system of solar thermal collection system is a system closed, recirculated water circulating-heating, but in circulation
Water cycle process can produce some on-condensible gases, additionally, in the case of sometimes sunray is strong, the water meeting in heat collector
Form soda pop hot water, in the case of therefore the water in heating carries out heat exchange, because there is on-condensible gas or because forming soda pop
Hot water, thus cause the reduction of the coefficient of heat transfer so that solar energy cannot make full use of.
For the problems referred to above, the invention provides a kind of new solar heat-preservation system, thus solve solar water with
Its fluid carries out the problem that the coefficient of heat transfer in the case of heat exchange is low.
Summary of the invention
The invention provides a kind of new solar energy system, thus solve the technical problem above occurred.
To achieve these goals, technical scheme is as follows:
A kind of solar energy system, including heat collector, hot water storage tank and radiating tube, radiating tube is arranged in hot water storage tank, described collection
The hot water of hot device heating, through radiating tube, transfers heat to hot water storage tank by radiating tube；It is characterized in that, described heat radiation
Pipe is multiple radiating tubes of series connection.
As preferably, described radiating tube is plate-fin radiating tube, and described plate-fin radiating tube includes flat tube and is arranged on flat
Fin in pipe, described flat tube includes that tube wall parallel to each other, described fin are arranged between tube wall, and described fin includes tilting
In the sloping portion of tube wall, by the prominent point of impact style processing on sloping portion, so that the fluid of sloping portion both sides leads to
Cross the hole connection that on sloping portion, impact style is formed；Described prominent point stretches out along hot water flow direction from sloping portion.
As preferably, described prominent point is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion, no
The average length L of the same prominent point in plate wing radiating tube is different, and L is the summit distance to midpoint, base of isosceles triangle.
As preferably, along the flow direction of hot water, L constantly increases.
As preferably, along the flow direction of hot water, the amplitude that L increases is increasing.
As preferably, described fin includes horizontal component, described horizontal component and tube walls parallel and is attached to one with tube wall
Rising, described sloping portion is connected with horizontal component；Described prominent point is isosceles triangle, and the base of described isosceles triangle is arranged on
On sloping portion, the distance of adjacent tube wall is H, a length of h on isosceles triangle base, and the distance of adjacent sloping portion is
W, the drift angle of isosceles triangle is b, and the angle of the bearing of trend of described prominent point and the flow direction of hot water is a, sloping portion with
The angle of the acute angle between tube wall is c, meets equation below:
C6*h/H=c1*Ln (L*sin (a)/(w*sin (c))+c2,
sin(b/2)=c3+c4*sin(a)-c5*(sin(a))2,
Wherein Ln is logarithmic function, and c1, c2, c3, c4, c5 are coefficients,
0.24 < c1 < 0.25,0.68 < c2 < 0.70,0.87 < c3 < 0.88,0.68 < c4 < 0.70,1.14 < c5 < 1.15,
7.0<c6<7.5；
19 ° < a < 71 °, 55 ° <b < 165 °, 90 ° < c < 70 °；
10mm < w < 15mm, 6mm < H < 14mm；
0.19<L*sin(a)/w<0.41, 0.29<7*h/H<0.47；
H be with the relative face of adjacent tube wall between distance, W is along tube wall direction with the relative face of adjacent sloping portion
On distance, L is the summit distance to midpoint, base of isosceles triangle.
As preferably, c1=0.245, c2=0.694,
C3=0.873, c4=0.691, c5=1.1454, c6=7.11.
As preferably, the bearing of trend of described prominent point is a with the angle of the flow direction of hot water, and same rake sets up separately
Putting multiple prominent point, along the flow direction of hot water, described angle a is increasing.
As preferably, same sloping portion arranges multiple prominent point, and multiple prominent points are staggered from sloping portion two epitaxial lateral overgrowth
Stretch.
As preferably, a length of L that described prominent point extends, same sloping portion arranges multiple prominent point, along hot water
Flow direction, described length L is more and more less.
As preferably, described prominent point is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion, makees
For preferably, base is identical with the angle of inclination of sloping portion, and the drift angle of described isosceles triangle is b, and same rake sets up separately
Putting multiple prominent point, along the flow direction of hot water, described drift angle b is increasing.
As preferably, described prominent point is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion, makees
For preferably, base is identical with the angle of inclination of sloping portion, and the base of described isosceles triangle is S1, and same rake sets up separately
Putting multiple prominent point, along the flow direction of hot water, described S1 is more and more less.
Compared with prior art, plate type heat exchanger and the heat exchange tube wall thereof of the present invention has the advantage that
1) the described radiating tube of the present invention is the multiple of parallel connection, by arranging the radiating tube of multiple parallel connection, can increase heat exchange
Area, strengthens the heat storage capacity of solar energy system.
2) the plate wing fin of the prominent point of punching press is applied to solar heat-preservation system by the present invention, solves containing fixed gas
The problem that the heat exchange efficiency of body is low, has greatly saved the energy, has overcome the problem that solar heat-exchange system effectiveness is low, it will be apparent that
Improve heat exchange efficiency.
3) laminar sublayer can on the one hand be destroyed, on the other hand compared with " punching " fin, not because of punching loss heat-transfer surface
Long-pending, and " sharp " and " hole " can disturbance fluid on differing heights respectively, strengthen different thermal resistance links；
4) aperture that punching press " prominent point " is formed, by the impact of " prominent point " downstream pressure field, can realize the pressure of fin media of both sides
Power and mass exchange, damage the stability of viscous sublayer and liquid film, enhanced heat exchange；
5) for the hot water containing on-condensible gas, it is possible to realize expanding gas-liquid interface and gas phase boundary with cold by " prominent point "
But the contact area of wall strengthen disturbance；
6) by substantial amounts of experiment, it is determined that the physical dimension of optimal plate-fin radiating tube；
7) distance by the adjacent tube wall of design is H, a length of h on isosceles triangle base, adjacent sloping portion away from
From for w, the drift angle of isosceles triangle is b, and the bearing of trend of described prominent point is the parameters such as a with the angle of the flow direction of hot water
Along the change of fluid flow direction, improve heat exchange efficiency or reduce fluid pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of solar heat-preservation system of the present invention；
Fig. 2 is the improved structure schematic diagram of solar heat-preservation system of the present invention；
Fig. 3 is the improved structure schematic diagram of solar heat-preservation system of the present invention；
Fig. 4 is one cross section structural representation of plate-fin radiating tube of the present invention；
Fig. 5 is the schematic diagram that the present invention arranges prominent point structures slope part planar；
Fig. 6 is another schematic diagram that the present invention arranges prominent point structures slope part planar；
Fig. 7 is the triangle prominent point structural representation of the present invention；
Fig. 8 is the tangent plane structural representation in triangle of the present invention prominent point runner；
The structural representation that the prominent point of Fig. 9 present invention extends to sloping portion both sides；
Figure 10 is one cross section structural representation of plate-fin radiating tube of the present invention.
Reference is as follows:
1 plate wing fin, 2 fluid passages, 3 tube walls, 4 sloping portions, 5 horizontal components, 6 prominent points, 7 fins, 8 heat collectors, 9 circulations
Pump, 10 hot water storage tanks, 11 seal members.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
Herein, without specified otherwise, relating to formula, "/" represents that division, "×", " * " represent multiplication.
As it is shown in figure 1, a kind of solar heat-preservation system, including heat collector 8, hot water storage tank 10 and radiating tube 1, radiating tube 1
Being arranged in hot water storage tank 10, the hot water of described heat collector 8 heating, through radiating tube 1, transfers heat to store by radiating tube 1
Water in boiler 10, the hot water circuit after heat exchange returns to heat in heat collector 8.Preferably it is recycled to collection by circulating pump 9
In hot device 8.
Fig. 2 illustrates the embodiment of the improvement of Fig. 1.As in figure 2 it is shown, described radiating tube is the multiple of parallel connection.By setting
Put the radiating tube of multiple parallel connection, heat exchange area can be increased.
Fig. 3 illustrates the embodiment of the improvement of Fig. 1.As it is shown on figure 3, described radiating tube is the multiple of series connection.By setting
Put the radiating tube of multiple series connection, heat exchange area can be increased.
As shown in Figure 4, described radiating tube is plate-fin radiating tube, and described radiating tube includes flat tube and is arranged on flat tube
In fin 7, described flat tube includes tube wall 3 parallel to each other, between described adjacent tube wall 3 formed fluid passage 2, described
Between adjacent tube wall 3, fin 7 is set.Described fin 7 includes the sloping portion 4 tilted with tube wall 3, and described sloping portion is mutual
Parallel.By the prominent point 6 of impact style processing on sloping portion 4, so that the fluid of sloping portion 4 both sides passes through sloping portion
The hole formed by impact style on 4 is connected；Described prominent sharp 6 stretch out from sloping portion 4.
Described flat tube can be that integration manufactures, as shown in Figure 10, it is also possible to is by upper and lower tube wall and to be arranged on
Seal member split composition between tube wall up and down, described seal member 11 is arranged on the left and right sides of Fig. 4.
Because sloping portion 4 is parallel to each other, between the most adjacent sloping portion 4 with tube wall up and down, constitute parallel four limits
Shape passage.
By arranging prominent point 6, have the advantage that
1) on the one hand can destroy laminar sublayer, not lose heat exchange area, and " sharp " and " hole " can be respectively different high
Disturbance fluid on degree, enhanced heat exchange；
2) punching press is dashed forward the aperture of pointed one-tenth, by the impact of prominent point downstream pressure field, can realize fin media of both sides pressure and
Mass exchange, damages the stability of viscous sublayer and liquid film, enhanced heat exchange.
3) for the hot water containing on-condensible gas or biphase hot water, it is possible to by " prominent point " realize expanding gas-liquid interface with
And the contact area of gas phase boundary and cooling wall strengthen disturbance.
Above-mentioned measure is taked, it is possible to greatly improve the heat exchange efficiency of hot water in plate-fin radiating tube.With normally
Hot water heat exchange is compared, it is possible to increase the heat exchange efficiency of 15-25%.
As preferably, the angle that the flow direction of described prominent sharp 6 and hot water is formed is acute angle.
As preferably, as shown in Figure 4, described fin 7 is apsacline fin, and described fin 7 includes horizontal component 5 and inclines
Tiltedly part 4, described horizontal component 5 is parallel with tube wall 3 and sticks together with tube wall 3, described sloping portion 4 and horizontal component 5
Connect.
In Fig. 5, the flow direction of hot water is from left to right.But the simply explanation hot water of left and right herein is along the flowing of prominent point
Direction, is not offered as actual certain left and right flowing.
As shown in Figure 8, the described prominent bearing of trend of sharp 6 is a with the angle of the flow direction of hot water, as it is shown in figure 5, along
The flow direction of hot water, same sloping portion 4 arranges multiple prominent sharp 6, and along the flow direction of hot water, described angle a is more
Come the biggest.
Be found through experiments, by becoming larger of angle a, identical with angle a compared with, it is possible to achieve higher change
The thermal efficiency, it is possible to about improve the heat exchange efficiency of about 10%.
As preferably, the described prominent sharp 6 a length of L extended, along the flow direction of hot water, same sloping portion 4 sets
Putting multiple prominent sharp 6, along the flow direction of hot water, described length L is increasing.Be found through experiments, by length L by
Gradual change is big, identical with length L compared with, it is possible to achieve higher heat exchange efficiency, it is possible to about improve the heat exchange effect of about 9%
Rate.
As preferably, along the flow direction of hot water, the amplitude that length L becomes big is more and more less.It is found through experiments, length
The amplitude that the change of L is big is more and more less, it is ensured that in the case of heat exchange efficiency, reduce flow resistance further, it is possible to about drop
The flow resistance of low about 5%.
As preferably, described prominent sharp 6 is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion 4,
As preferably, base is identical with the angle of inclination of sloping portion, and the drift angle of described isosceles triangle is b, along the flowing of hot water
Direction, same sloping portion 4 arranges multiple prominent sharp 6, along the flow direction of hot water, keeps constant situation in base length
Under, described prominent pinnacle angle b is more and more less.It is found through experiments, by tapering into of prominent pinnacle angle b, phase complete with drift angle b
Compared with, it is possible to achieve higher heat exchange efficiency, it is possible to about improve the heat exchange efficiency of about 8%.
As preferably, along the flow direction of hot water, the amplitude that drift angle b diminishes is more and more less.It is found through experiments, drift angle
The amplitude that b diminishes is more and more less, it is ensured that in the case of heat exchange efficiency, reduces flow resistance further, it is possible to about reduce
The flow resistance of about 4%.
As preferably, described prominent sharp 6 is isosceles triangle, and the base of described isosceles triangle is arranged on sloping portion,
As preferably, base is identical with the angle of inclination of sloping portion, and a length of h in base of described isosceles triangle, along hot water
Flow direction, same sloping portion 4 arranges multiple prominent sharp 6, and along the flow direction of hot water, same sloping portion 4 is arranged
Multiple prominent points, in the case of drift angle holding is constant, along the flow direction of hot water, described h is increasing.Sent out by experiment
Existing, becoming larger by h, identical with h compared with, it is possible to achieve higher heat exchange efficiency, it is possible to about improve about 7%
Heat exchange efficiency.
As preferably, along the flow direction of hot water, the amplitude that h becomes big is more and more less.Being found through experiments, h becomes big
Amplitude is more and more less, it is ensured that in the case of heat exchange efficiency, reduces flow resistance further, it is possible to about reduce about 5%
Flow resistance.
As preferably, along the flow direction of fluid, same sloping portion arranges multiple rows of prominent sharp 6, as it can be seen in figures 5 and 6, often
Distance between the prominent point of row is S2, and along the flow direction of hot water, described S2 is increasing.Why it is arranged such, mainly
Purpose is big by the change of S2, it is achieved in the case of ensureing heat exchange efficiency, reduce flow resistance further.Sent out by experiment
Existing, flow resistance reduces about 10%.
Described S2 is that the base of the prominent point with adjacent row is as computed range.
As preferably, as shown in Figure 6, multiple rows of prominent sharp 6 is shifted structure.In Fig. 6, hot water is to flow from top to bottom.But herein
Up and down simply explanation hot water along the flow direction of prominent point, be not offered as reality and flow the most up and down.
Finding in an experiment, the distance of adjacent tube wall 3 can not be excessive, crosses conference and causes the reduction of heat exchange efficiency, too small meeting
Cause flow resistance excessive, in like manner, for the base length of isosceles triangle, drift angle, prominent point, fin sloping portion distance with
The angle of fluid flow direction all can not be excessive or too small, the excessive or too small reduction that all can cause heat exchange efficiency or flowing
The change of resistance is big, therefore at the distance of adjacent tube wall 3, the base length of isosceles triangle, drift angle, prominent point, fin sloping portion
And meet an optimized size relationship between the angle of fluid flow direction.
Therefore, the present invention is thousands of the numerical simulations by multiple various sizes of heat exchangers and test data,
Meet in the case of industrial requirements pressure-bearing (below 10MPa), in the case of realizing maximum heat exchange amount, the optimal heat exchange summed up
The dimensionally-optimised relation of tube wall.
The distance of adjacent tube wall is H, a length of h on isosceles triangle base, and the distance of adjacent sloping portion is w,
The angle of the acute angle between sloping portion and tube wall is c, meets equation below:
C6*h/H=c1*Ln (L*sin (a)/(w*sin (c))+c2,
sin(b/2)=c3+c4*sin(a)-c5*(sin(a))2,
Wherein Ln is logarithmic function, and c1, c2, c3, c4, c5 are coefficients,
0.24 < c1 < 0.25,0.68 < c2 < 0.70,0.87 < c3 < 0.88,0.68 < c4 < 0.70,1.14 < c5 < 1.15,
7.0<c6<7.5；
19 ° < a < 71 °, 55 ° <b < 165 °, 90 ° < c < 70 °；
10mm < w < 15mm, 6mm < H < 14mm；
0.19<L*sin(a)/w<0.41, 0.29<7*h/H<0.47；
H be with the relative face of adjacent tube wall between distance, W is along tube wall direction with the relative face of adjacent sloping portion
On distance, L is the summit distance to midpoint, base of isosceles triangle.
As preferably, c1=0.245, c2=0.694,
C3=0.873, c4=0.691, c5=1.1454, c6=7.11.
As preferably, 85 ° < c < 80 °.
As preferably, along with the increase of angle c, c6 is more and more less.
By the optimal geometric scale of " the prominent point " that go out of above-mentioned formula, heat exchange efficiency can be improved, simultaneously can be real
The most only to viscous sublayer or comprise liquid film and to the strengthening comprising gas phase boundary different scale internal thermal resistance, it is to avoid measure
Degree, causes unnecessary drag losses.
As preferably, the base of the adjacent prominent point of described same row the most on one wire, the prominent point that same row is adjacent
Distance is S1, described 3.5 × h < S1 < 5 × h, wherein S1 be the base with the prominent point of adjacent two isosceles triangles midpoint away from
From.
As preferably, the base of the isosceles triangle of the prominent point of adjacent row is parallel to each other, and the summit of isosceles triangle is on earth
The distance at midpoint, limit is L, and distance S2 of adjacent row is 4.2*L < S2 < 7.2*L.It is preferably S2=5.3*L
During the base difference of the isosceles triangle of adjacent row, the weighted mean on two bases are taked to calculate.
As preferably, the angle of the isosceles triangle of same row is identical with base.I.e. shape is identical, for equal
Shape.
For formula above, for the prominent point that front and rear row size is different, the most still it is suitable for.
For the concrete dimensional parameters do not mentioned, it is designed according to normal heat exchanger.
As preferably, as it is shown in figure 9, arrange multiple prominent sharp 6 on sloping portion, described prominent point is to the not homonymy of sloping portion
Extend
As preferably, same sloping portion arranges multiple rows of prominent point, and the prominent point of at least one row point prominent with other rows is to sloping portion
Extend side different.
As preferably, the adjacent prominent point of often row extends to the not homonymy of sloping portion.
By being arranged such, so that fluid replaces heat exchanging tampering in the passage of sloping portion both sides, carry further
High heat exchange efficiency.Compared with in the same side, it is possible to increase about 8%.
As preferably, cascaded structure as shown in Figure 3, the average length L of the different prominent points in plate wing radiating tube 1 is not
With.Along the flow direction of hot water, average length L constantly increases.Experiment finds, by being arranged such, can improve about
The heat exchange efficiency of 10%.
Average length L is the weighted mean of all prominent point length.
Along the flow direction of hot water, the amplitude that average length L increases is increasing.Experiment finds, by being arranged such,
The heat exchange efficiency of about 12% can be improved.
As preferably, the highest length L is 1.2-1.3 times of minimum length L.
As preferably, outside described radiating tube, fin is set.
As preferably, along the flow direction of hot water, outside fin height constantly increases, and the amplitude that height increases more is come
The biggest.By increasing fin height, thus increase the heat exchange area of fin.Experiment finds, by being arranged such, with fin height
Identical compare, the heat exchange efficiency of about 5% can be improved.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any art technology
Personnel, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should
When being as the criterion with claim limited range.
Claims (5)
1. a solar heat-preservation water tank, including radiating tube, described radiating tube is arranged in hot water storage tank, and solar thermal collector adds
The hot water of heat, through radiating tube, transfers heat to hot water storage tank by radiating tube；Described radiating tube is plate-fin radiating tube.
2. hot water storage tank as claimed in claim 1, it is characterised in that described plate-fin radiating tube includes flat tube and is arranged on flat
Fin in pipe, described flat tube includes that tube wall parallel to each other, described fin are arranged between tube wall, and described fin includes tilting
In the sloping portion of tube wall, by the prominent point of impact style processing on sloping portion, so that the fluid of sloping portion both sides leads to
Cross the hole connection that on sloping portion, impact style is formed；Described prominent point stretches out along hot water flow direction from sloping portion；
The a length of L that described prominent point extends, along the flow direction of hot water, same sloping portion arranges multiple prominent point, along hot water
Flow direction, described length L is increasing.
3. hot water storage tank as claimed in claim 2, it is characterised in that along the flow direction of hot water, length L becomes big amplitude
More and more less.
4. hot water storage tank as claimed in claim 1 or 2, it is characterised in that described fin includes horizontal component, described horizontal part
Dividing with tube walls parallel and stick together with tube wall, described sloping portion is connected with horizontal component；Described prominent point is isoceles triangle
Shape, the base of described isosceles triangle is arranged on sloping portion, and the distance of adjacent tube wall is H, isosceles triangle base
A length of h, the distance of adjacent sloping portion is w, and the drift angle of isosceles triangle is b, the bearing of trend of described prominent point and hot water
The angle of flow direction be a, the angle of the acute angle between sloping portion and tube wall is c, meets equation below:
C6*h/H=c1*Ln (L*sin (a)/(w*sin (c))+c2,
sin(b/2)=c3+c4*sin(a)-c5*(sin(a))2,
Wherein Ln is logarithmic function, and c1, c2, c3, c4, c5 are coefficients,
0.24 < c1 < 0.25,0.68 < c2 < 0.70,0.87 < c3 < 0.88,0.68 < c4 < 0.70,1.14 < c5 < 1.15,
7.0<c6<7.5；
19 ° < a < 71 °, 55 ° <b < 165 °, 90 ° < c < 70 °；
10mm < w < 15mm, 6mm < H < 14mm；
0.19<L*sin(a)/w<0.41, 0.29<7*h/H<0.47；
H be with the relative face of adjacent tube wall between distance, W is along tube wall direction with the relative face of adjacent sloping portion
On distance, L is the summit distance to midpoint, base of isosceles triangle.
5. a solar water heater, including the hot water storage tank of one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461812.5A CN106091434B (en) | 2015-10-29 | 2015-10-29 | A kind of hot water storage tank of finned length variation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610461812.5A CN106091434B (en) | 2015-10-29 | 2015-10-29 | A kind of hot water storage tank of finned length variation |
| CN201510723274.8A CN105202779B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system of radiating tube arranged in series |
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| CN201510723274.8A Division CN105202779B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system of radiating tube arranged in series |
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| CN106091434B CN106091434B (en) | 2018-05-25 |
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| CN201610461813.XA Active CN106123373B (en) | 2015-10-29 | 2015-10-29 | The hot water storage tank that a kind of fin extends to different directions |
| CN201610462074.6A Active CN106091432B (en) | 2015-10-29 | 2015-10-29 | A kind of solar energy system of inner fin of heat dissipation pipe apex angle variation |
| CN201610275903.XA Expired - Fee Related CN105928226B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system |
| CN201610461814.4A Active CN106091435B (en) | 2015-10-29 | 2015-10-29 | A kind of hot water storage tank of spacing of fin variation |
| CN201510723274.8A Expired - Fee Related CN105202779B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system of radiating tube arranged in series |
| CN201610462075.0A Active CN106091433B (en) | 2015-10-29 | 2015-10-29 | A kind of solar energy system |
| CN201610461812.5A Active CN106091434B (en) | 2015-10-29 | 2015-10-29 | A kind of hot water storage tank of finned length variation |
| CN201610461799.3A Active CN106091410B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation water tank |
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| CN201610461813.XA Active CN106123373B (en) | 2015-10-29 | 2015-10-29 | The hot water storage tank that a kind of fin extends to different directions |
| CN201610462074.6A Active CN106091432B (en) | 2015-10-29 | 2015-10-29 | A kind of solar energy system of inner fin of heat dissipation pipe apex angle variation |
| CN201610275903.XA Expired - Fee Related CN105928226B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system |
| CN201610461814.4A Active CN106091435B (en) | 2015-10-29 | 2015-10-29 | A kind of hot water storage tank of spacing of fin variation |
| CN201510723274.8A Expired - Fee Related CN105202779B (en) | 2015-10-29 | 2015-10-29 | A kind of solar heat-preservation system of radiating tube arranged in series |
| CN201610462075.0A Active CN106091433B (en) | 2015-10-29 | 2015-10-29 | A kind of solar energy system |
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| CN110631266B (en) * | 2018-07-07 | 2020-08-18 | 威海文海节能科技有限公司 | Solar water heater with variable distance between condensing end stabilizing devices |
| CN110806024B (en) * | 2018-08-05 | 2020-08-28 | 伟迈云科技股份有限公司 | Trough type solar heat collector system with size of stabilizing device |
| CN110430720B (en) * | 2019-07-09 | 2020-11-06 | 北京空间飞行器总体设计部 | Gravity heat pipe radiator suitable for outdoor base station |
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| CN2419817Y (en) * | 2000-04-07 | 2001-02-21 | 李江波 | Sun light greenhouse temperature riser |
| CN104075464A (en) * | 2014-07-17 | 2014-10-01 | 杭州金培科技有限公司 | Solar heat collector system with heat storage function |
| CN204460146U (en) * | 2015-01-20 | 2015-07-08 | 李泽明 | A kind of solar heat-preservation steam raising plant |
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| US20070012430A1 (en) * | 2005-07-18 | 2007-01-18 | Duke Brian E | Heat exchangers with corrugated heat exchange elements of improved strength |
| CN101182977A (en) * | 2007-12-11 | 2008-05-21 | 华南理工大学 | Inner chiasma spiral exterior three-dimensional diamond-type rib double-side intensify heat transfer pipe |
| CN101363694A (en) * | 2008-08-21 | 2009-02-11 | 西安石油大学 | Shell-pipe head exchanger by double helix flowing of fluid medium in or out of heat exchange tube |
| CN101532798B (en) * | 2009-03-31 | 2011-12-28 | 华北电力大学 | Reinforced heat transfer element of truncated cylindrical surface wing type vortex generator |
| CN101968332A (en) * | 2010-09-20 | 2011-02-09 | 北京华夏壹泰科技有限公司 | EHT (Extra High Tension) self-cleaning energy-saving environment-friendly device and manufacture method thereof |
| CN103673715A (en) * | 2013-12-19 | 2014-03-26 | 宁夏三新热超导技术有限公司 | Reinforced heat transferring element |
| CN204142069U (en) * | 2014-10-08 | 2015-02-04 | 贵州晟泰铝业有限公司 | A kind of aluminum heat radiating flat tube |
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2015
- 2015-10-29 CN CN201610461813.XA patent/CN106123373B/en active Active
- 2015-10-29 CN CN201610462074.6A patent/CN106091432B/en active Active
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- 2015-10-29 CN CN201610461814.4A patent/CN106091435B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419817Y (en) * | 2000-04-07 | 2001-02-21 | 李江波 | Sun light greenhouse temperature riser |
| CN104075464A (en) * | 2014-07-17 | 2014-10-01 | 杭州金培科技有限公司 | Solar heat collector system with heat storage function |
| CN204460146U (en) * | 2015-01-20 | 2015-07-08 | 李泽明 | A kind of solar heat-preservation steam raising plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106123373B (en) | 2018-05-25 |
| CN106091432A (en) | 2016-11-09 |
| CN105928226B (en) | 2017-03-15 |
| CN106091410A (en) | 2016-11-09 |
| CN105202779A (en) | 2015-12-30 |
| CN106091410B (en) | 2018-03-20 |
| CN106091433A (en) | 2016-11-09 |
| CN106091432B (en) | 2018-06-26 |
| CN105202779B (en) | 2016-06-08 |
| CN106091435B (en) | 2018-05-25 |
| CN105928226A (en) | 2016-09-07 |
| CN106123373A (en) | 2016-11-16 |
| CN106091435A (en) | 2016-11-09 |
| CN106091434B (en) | 2018-05-25 |
| CN106091433B (en) | 2018-06-15 |
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