CN109631641A - A kind of gravity assisted heat pipe - Google Patents
A kind of gravity assisted heat pipe Download PDFInfo
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- CN109631641A CN109631641A CN201910086118.3A CN201910086118A CN109631641A CN 109631641 A CN109631641 A CN 109631641A CN 201910086118 A CN201910086118 A CN 201910086118A CN 109631641 A CN109631641 A CN 109631641A
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- heating element
- heating
- evaporation part
- heat pipe
- tube
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- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Resistance Heating (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention provides a kind of gravity assisted heat pipes, including evaporation part, condensation part, the liquid absorbs heat in evaporation part and evaporates, into condensation part heat release, evaporation part is then returned to by gravity, the evaporation part includes electric heating element, the electric heating element sets up multiple in the side that heating tube extends, heating element is set in electric heating element, and along vertical direction, the spacing between electric heating element is increasing.The present invention devises the gravity assisted heat pipe of Novel structure, is distributed by the spacing of the heating element of reasonable Arrangement saved electric-heating heat-tube, improves heat exchange efficiency.
Description
Technical field
The present invention relates to a kind of gravity assisted heat pipes, more particularly, to a kind of electrically heated gravity assisted heat pipe.
Background technique
Hot pipe technique is George Ge Luofo of U.S. Los Alamos (Los Alamos) National Laboratory in 1963
One kind of (George Grover) invention is known as the heat transfer element of " heat pipe ", it takes full advantage of heat-conduction principle and phase transformation is situated between
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.
The industries such as aerospace, military project were widely used in front of hot pipe technique, since being introduced into radiator manufacturing, so that
People change the mentality of designing of traditional heat sinks, get rid of the list for obtaining more preferable heat dissipation effect by high air quantity motor merely
One radiating mode makes radiator obtain satisfied heat transfer effect using hot pipe technique, opens heat dissipation industry new world.At present
Heat pipe is widely used in various heat exchange equipments, including nuclear power field, such as the UTILIZATION OF VESIDUAL HEAT IN of nuclear power etc..
Heat pipe can use a variety of heat pipes, including solar energy, fume afterheat or other thermal energy in the prior art, can also
To use electric energy.But in the case where using electric energy, be generally employed alone in evaporation part and electric heating element is simply set, but
It is that electrical heating efficiency is lower in such cases, the prior art does not take specific structure or corrective measure to further increase
Heating efficiency.
In view of the above-mentioned problems, the present invention is improved on the basis of invention in front, a kind of new gravity heat is provided
Pipe, to solve the problems, such as that the existing heating efficiency in the case where gravity assisted heat pipe heating is low.Heating is arranged in the present invention in pipe
Heating element is improved and is changed so that fluid is sufficiently heated in heating tube by the way that the variation of distance of heating element is arranged
Thermal effect.
Summary of the invention
The object of the present invention is to provide a kind of gravity assisted heat pipes of Novel structure, pass through this kind of structure gravity assisted heat pipe, Neng Goushi
The low problem of existing heating efficiency in the case where existing gravity assisted heat pipe heating.
To achieve the goals above, technical scheme is as follows:
A kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorb heat in evaporation part and evaporate, into condensation part heat release, so
Evaporation part is returned to by gravity afterwards, the evaporation part includes electric heating element, which is characterized in that the electric heating element is heating
The side that pipe extends sets up multiple, heating element is arranged in electric heating element, along vertical direction, between electric heating element
Spacing is increasing.
Preferably, capillary structure is arranged in inside heat pipe.
Preferably, liquid is, ammonia fluid, methanol, acetone or heptane.
A kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorb heat in evaporation part and evaporate, puts into condensation part
Heat, then returns to evaporation part by gravity, and the evaporation part includes heating element, which is characterized in that the heating element is perpendicular
Histogram upwardly extends, and the heating element includes shell and the intracorporal main element of shell, the main element be diamond shape through-hole and
Octagon through-hole composition, the side length of the diamond shape through-hole are equal to the side length of octagon through-hole, and four of the diamond shape through-hole
While be respectively four different octagon through-holes while, the mutual unconnected side of four of octagon through-hole is four respectively
The side of different diamond shape through-holes；The electric heating element is arranged in diamond shape through-hole.
Preferably, the heating element is resistance heater.
Preferably, resistance heater fills entire regular quadrangle channel.
A kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorb heat in evaporation part and evaporate, puts into condensation part
Then heat returns to evaporation part by gravity, the evaporation part includes electric heating element, and the electric heating element is in the vertical direction
It is arranged multiple, along vertical direction, the heating power for the heating element arranged in different electric heating elements gradually increases.
A kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorb heat in evaporation part and evaporate, puts into condensation part
Then heat returns to evaporation part by gravity, heating tube is arranged in the evaporation part, and the heating tube includes tube body and is arranged in tube body
Interior heating element, the heating tube are vertical direction setting, and fluid channel is arranged on the heating tube tube body, guarantees evaporation part
Fluid be able to enter heating tube and heated；The heating element includes electric heater, and electric heater heats in heating element
Outer fluid；It is characterized in that, the heating element be set to along vertical direction it is multiple, fluid channel be arranged adjacent
On the tube body being spaced between two heating elements.
A kind of gravity assisted heat pipe, including evaporation part, condensation part, riser portions and falling portion, the liquid absorb heat in evaporation part and steam
Hair, enters condensation part heat release by riser portions, then returns to evaporation part by falling portion, the evaporation part includes electric heating portion
Part, which is characterized in that the heating element set up in the side that heating tube extends it is multiple, along heating tube fluid flowing
The side length in direction, regular quadrangle is smaller and smaller.
The present invention has the advantage that
Compared with prior art, of the invention to have the advantage that
1) present invention devises the rule at (direction i.e. from bottom to top) along vertical direction interval of heating element in heating tube
Distribution, can further improve heating efficiency.
2) present invention devises a kind of gravity assisted heat pipe of the heating element of Novel structure, and in the heating element of gravity assisted heat pipe
Interior setting heating element can be realized by such structure and quickly provide hot fluid, and the gravity assisted heat pipe has heating fast
Speed, uniformity of temperature profile, safe and reliable function, improve heating efficiency.
3) present invention passes through heating element (side i.e. from bottom to top along vertical direction in heating tube in setting heating tube
To) heating power variation, further improve homogeneous heating degree and heating efficiency.
4) present invention devises heating element heating power different in heating tube along the variation in heating tube length direction,
The security performance and heating properties of device can be further increased.
5) present invention passes through numerical simulation and many experiments, it is determined that the optimal ratio of the electrical heating power of different layers is closed
System, further improves homogeneous heating degree and heating efficiency, and also the design for the heating tube of such structure provides one most preferably
Reference frame.
6) present invention passes through numerical simulation and many experiments, it is determined that the iptimum relationship of each size of heating element, into
One step improves homogeneous heating degree and heating efficiency.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of gravity assisted heat pipe of the present invention；.
Fig. 2 is gravity assisted heat pipe preferred structure schematic diagram of the present invention.
Fig. 3 is heating tube (heating element) Structure of cross section schematic diagram.
Fig. 4 is heating element Section A-A schematic diagram in Fig. 3 heating tube.
Fig. 5 is heating tube longitudinal direction section schematic diagram.
Fig. 6 is that Fig. 1 improves structural schematic diagram.
In figure: the evaporation part 1-；The condensation part 2-；3- heating tube；4- power supply；5- shell；The gap 6-；
7- heating element；71- regular quadrangle；72- octagon；The side 73-；8- aperture；9- electric heater.
Specific embodiment
Fig. 1-5 illustrates a kind of gravity assisted heat pipe.As shown in Figure 1, the gravity assisted heat pipe includes evaporation part 1, condensation part 2, institute
It states liquid and absorbs heat in evaporation part 1 and evaporate, into 2 heat release of condensation part, evaporation part 1, the evaporation part packet are then returned to by gravity
Electric heating element 7 is included, the heating tube 3 is arranged in evaporation part, and the heating tube 3 is that vertical direction is arranged (perpendicular to evaporation
The bottom plane in portion 1 is arranged), heating tube 3 includes tube body and is arranged in the intracorporal heating element 7 of pipe, and the heating element 7 is adding
Extend on 3 vertical direction of heat pipe.
Preferably, the cross section of the heating tube 3 is regular quadrangle.
Preferably, the heating element is resistance heater.
Preferably, insulating layer is arranged outside heating tube 3.
Preferably, capillary structure is arranged in heat pipe.By the way that capillary structure is arranged, liquid is promoted to enter evaporation part as early as possible.
Preferably, liquid is, ammonium hydroxide, methanol, acetone or heptane.
Preferably, insecticide liquid is arranged in cabinet, such as smoke and wash the medical fluid used in condensation part insertion cabinet.For
Heating is smoked to wash the medical fluid used.
Preferably, the multiple heating elements 7 of setting in heating tube 3, (from lower past in the short transverse along heating tube 3
On), the spacing between heating element 7 is bigger.If the distance apart from 3 bottom end of heating tube is H, the spacing between adjacent heating element
For S, S=Q1(H), i.e. S is using distance H as the function of variable, and S ' is the first order derivative of S, meets following require:
S’>0;
Main cause is dry caused by avoiding upper steam heating too fast.Heating power by the way that lower part is arranged adds greater than top
Thermal power reheats the fluid on top so that fluid is sufficiently heated in lower part in uphill process, on the one hand can guarantee to add
The full and uniform mixing of heat, caused by being on the other hand also avoided that the fluid for heating excessive caused top because of top first evaporates
Heat dry-out.Therefore the distance between the adjacent heating element for needing to be arranged is shorter and shorter.
It is found through experiments that, by above-mentioned setting, can both keep the whole uniform of heating to the full extent, while can
To improve heating effect.
Further preferably, in the short transverse along heating tube 3, the increasing width of the distance between adjacent heating element
Degree is continuously increased.That is S " is the second derivative of S, meets following require:
S”>0;
Be found through experiments that, by so set, can further keep heating it is whole uniformly, while heating effect can be improved
Fruit.It should be noted that above-mentioned rule is the rule that applicant obtains with numerical simulation through a large number of experiments, it is not ability
The common knowledge or conventional means in domain.
Preferably, the heating element 7 is that diamond shape through-hole 71 and octagon through-hole 72 form, the diamond shape through-hole
Side length is equal to the side length of octagon through-hole, and four sides 73 of the diamond shape through-hole 71 are that four different octagons are logical respectively
The side in hole 72, four of octagon through-hole 72 apart from one another by while 73 be respectively four different diamond shape through-holes 71 while；Water chestnut
Electric heater 9 is set in shape through-hole 71.Four angles of diamond shape through-hole are all 90 degree, i.e., this diamond shape is regular quadrangle.
By the gravity assisted heat pipe of the new-type heating structure of setting, which is evenly distributed on electric heater more the present invention
Around a octagon channel, fluid is entered in octagon channel and is uniformly heated by electric heater, is led to
Such structure is crossed, can be can be realized by a device and steam is quickly provided, and the gravity assisted heat pipe is rapid with heating, temperature
Degree be evenly distributed, safe and reliable function, improve heating efficiency.
Preferably, multiple heating elements are set in heating tube 3, and in the short transverse along heating tube 3, different heating portion
The heating power for the electric heater arranged in each regular quadrangle of part is gradually reduced.If the distance apart from 3 bottom end of heating tube is
H, the interior electric heater capacity arranged of each regular quadrangle of adjacent heating element is W, S=Q3(H), i.e. W is with distance H for change
The function of amount, W ' are the first order derivatives of W, meet following require:
W’<0;
Main cause is dry caused by avoiding upper steam heating too fast.Heating power by the way that lower part is arranged adds greater than top
Thermal power reheats the fluid on top so that fluid is sufficiently heated in lower part in uphill process, on the one hand can guarantee to add
The full and uniform mixing of heat, caused by being on the other hand also avoided that the fluid for heating excessive caused top because of top first evaporates
Heat dry-out.Therefore the distance between the adjacent heating element for needing to be arranged is shorter and shorter.
It is found through experiments that, by above-mentioned setting, can both keep the whole uniform of heating to the full extent, while can
To improve heating effect.
Further preferably, it in the short transverse along heating tube 3, is arranged in each regular quadrangle of adjacent heating element
The amplitude that electric heater capacity becomes smaller is continuously increased.That is W " is the second derivative of S, meets following require:
W">0；
Be found through experiments that, by so set, can further keep heating it is whole uniformly, while heating effect can be improved
Fruit.It should be noted that above-mentioned rule is the rule that applicant obtains with numerical simulation through a large number of experiments, it is not ability
The common knowledge or conventional means in domain.
Preferably, fluid channel 8 is arranged in 3 lower part of heating tube, guarantees that the fluid of heat pipe evaporation part is able to enter and add
Heat pipe 3 is heated；The setting of heating element 7 is mentioned on 8 top of fluid channel by being heated in heating tube and outside pipe
High heating efficiency.
When being worked, heating tube 3 is arranged in evaporation part 1, and the fluid in evaporation part 1 passes through the fluid channel on tube body
8 enter heating tube 3, and then fluid is in octagon through-hole, by the 7 regular quadrangle through-hole of heating element in heating tube 3
Electric heater heated, while the fluid of the outside of heating tube 3 is heated also by heating tube.Inside and outside heating tube
While heat, improve heating efficiency.
Preferably, regular quadrangle through-hole is closed up and down, fluid be cannot be introduced into.
Preferably, the tube body of heating tube is exactly the outside wall surface of heating element.Preferably, heating tube is with heating element
It is integrated.
Preferably, groove is arranged in 3 inner wall of heating tube, the outside wall surface of the heating element 7 is arranged in groove.It is logical
Cross the fastness for being arranged such and can be further improved heating element installation.
Preferably, heating tube 3 is welded for multi-segment structure, heating element 7 is arranged in the junction of multi-segment structure.Pass through
So set, easy to process, saving cost can be made.
Preferably, the heating element 7 is resistance heater.
Preferably, resistance heater 7 fills entire regular quadrangle channel.It can guarantee heating element by being arranged such
It is contacted with the wall surface in regular quadrangle channel, further increases heating efficiency.
Preferably, the center of the centre distance heating element 7 of diamond shape through-hole is remoter, then unit on heating tube extending direction
The heating power of the resistance heater of length is bigger.For example, the heating power of first layer is less than the heating function of the second layer in Fig. 3
Rate, but the heating power of the second layer is also different, particularly the heating power of four apex angles is greater than the heating power of non-apex angle.
By simulating and testing discovery vertically, distance center is remoter, then because the area that is related to of heating is bigger, it is therefore desirable to it is more plus
Thermal power, especially in outermost layer, because also to heat the liquid outside heating tube, it is therefore desirable to heating tube extending direction on
The heating power of unit length is bigger.The present invention passes through heating function of the heating element apart from heating element center in setting heating tube
The variation of rate further improves homogeneous heating degree and heating efficiency.
Preferably, the center of the centre distance heating element 7 of diamond shape through-hole is remoter, then unit on heating tube extending direction
The amplitude that the heating power of the resistance heater of length is increasing constantly increases.The variation of above-mentioned heating amplitude is also to pass through
It crosses a large amount of numerical simulation and experiment obtains, not the common knowledge of this field.It, can be further by the variation of above-mentioned amplitude
Improve heating efficiency and homogeneous heating degree.
Preferably, the heating element 7 is octagon center heating element, octagon through-hole is located at heating element
Center.As shown in Figure 3.
Further preferably, 7 center of heating element is octagon channel, and the regular quadrangle channel is around heating
The double-layer structure of component, outermost layer are octagon channel, the side length for the octagon through-hole that the side length of the outer tube is 8 times.
By a large amount of numerical simulation with experiment it is known that the different ability of the heating power requirement of different layers heating element
Reaching uniformly heated purpose, regular quadrangle side length is longer, then since it is desired that the volume of heating is bigger, exterior space is also bigger,
The heating power ratio of the ectonexine then needed is bigger；And the length of heating element is longer on heating tube extending direction, then because
Bigger for the heating surface (area) (HS in whole length, the distribution of heating is more uniform, therefore the heating power ratio of caused ectonexine
It is required that smaller.Therefore the heating power and its side length of the invention by a large amount of vertical simulation and experiment for each layer, height
A large amount of research has been carried out, has obtained optimal heating power relationship.And for the structure of above-mentioned Fig. 3, outermost layer adds
The ratio of the heating power of thermal power and innermost layer is to meet following require:
Preferably, the heating power of each heating element of the first layer is P1, each heating element of the second layer adds
Thermal power is P2, and the heating element length is K1, and the side length in regular quadrangle channel is K2, then meets following requirement:
P2/P1=a-b*LN(K1/K2)；Wherein a, b are parameter, 3.25 < a < 3.30,0.92 <b < 0.93；
1.3<P2/P1<1.8；5.0< K1/K2<8.5；
The first layer of single heating tube and total heating power of the second layer are M, 1500W < M < 3500W.
Preferably, a=3.28, b=0.923.
Preferably, 1.5 < P2/P1 < 1.7；7.0< K1/K2<7.5；
120<B2<280mm；
8<K2<30mm；
First layer and the second layer are internal layer and outer layer respectively.
Preferably, a is gradually reduced as K1/K2 increases, b is gradually increased.By be arranged such can further such that
Homogeneous heating improves heating efficiency.
Preferably, the middle position of evaporation part 1 is arranged in the heating tube 3.By so set, guaranteeing that hot fluid adds
The uniformity of heat.
Preferably, the cross-sectional area side length of the tube body of the heating tube 3 is the 0.01- of the cross-sectional area of evaporation part 1
0.15 times.Further preferably 0.11-0.13 times.
Preferably, fluid channel 8 is strip slot.
Preferably, fluid channel 8 is aperture.As shown in Figure 5.It should be noted that be only schematic diagram in Fig. 5, though
Only shown in right Fig. 51 of setting perhaps a rows of openings be actually not limited solely to one or a row, can be in phase
It is arranged on upper and lower position between adjacent electrically heated rod 9 multiple or multiple rows of.
Preferably, the hole shape can be circle or rectangular.
Preferably, 50% or less 1 fluid position of evaporation part is arranged in the aperture.By so set, can guarantee to flow
Body can be timely internally heated into heating tube 3, while also avoid aperture setting is excessively high steam is caused to overflow from aperture,
It avoids pressure in entire evaporation part excessive, while the fluid of eminence also being avoided to enter in heating tube, the steam generated is caused to take
The fluid of band point is too many.
Preferably, the conducting wire of connection electric heater 9 is entered by fluid channel.
Preferably, the conducting wire of connection electric heater 9, which passes through 3 bottom of heating tube, enters heating tube 3.
Preferably, groove is arranged in 3 inner wall of heating tube, the outside wall surface of the heating element 7 is arranged in groove.It is logical
Cross the fastness for being arranged such and can be further improved heating element installation.
Preferably, the heating element 7 be set to along vertical direction it is multiple, two neighboring heating element 7 it
Between fluid channel is set on the tube body that is spaced.The vertical direction that the present invention devises the heating element in heating tube is spaced apart,
And fluid channel is set in the heating tube at interval, it is ensured that the fluid at different location timely enters heating tube and added
Heat can further improve heating efficiency.
Preferably, that is, heating tube short transverse, the caliber of heating tube 3 are continuous along direction vertically from the bottom up
Become larger.Main cause is as follows: 1) passing through the caliber of increase heating tube 3, it is possible to reduce the resistance of steam flows upward, so that heating
The steam evaporated in pipe 3 is constantly moved towards the increased direction of caliber, to further steam be promoted to rise.2) because with
The continuous flowing of fluid, liquid constantly evaporate in heating tube 3, so that steam volume is increasing, pressure is also got over
Come bigger, therefore meets the variation of ever-increasing steam volume and pressure by increasing caliber, so that pressing on the whole
Power is evenly distributed.
Preferably, direction from the bottom up along vertical direction, constantly increased amplitude is more next for the caliber of heating tube 3
It is bigger.The amplitude variation of above-mentioned caliber is that the applicant obtains with numerical simulation through a large number of experiments as a result, by above-mentioned
Setting, further steam can be promoted to flow, it is integrally uniform to reach pressure.
Preferably, the multiple heating elements of setting in heating tube 3, along heating tube short transverse, different heating component
The side length of diamond shape is smaller and smaller.Distance apart from 3 entrance of heating tube is H, and the side length of diamond shape is C, C=Q2(H), C ' is the primary of C
Derivative meets following require:
C'<0；
Main cause is then to manufacture more difficult because diamond shape side length is smaller, but the uniformity integrally heated is better.Because more arriving
Top, it should the whole homogeneous heating for keeping fluid avoids partially dryouting caused by heating is uneven, and more arrives top,
Because steam also will will reinforce the uniformity of steam outlet and heating by exporting away.It, can be with by above-mentioned setting
Cost is saved, and reaches best homogeneous heating and steam output efficiency, while avoiding dryouting.
Further preferably, along heating tube short transverse, the smaller and smaller amplitude of the side length of the diamond shape of different heating component
It is continuous to increase.C " is the second derivative of C, meets following require:
C”>0。
Preferably, the distance between adjacent heating element remains unchanged.
Be found through experiments that, by so set, can further keep heating it is whole uniformly, while can be improved plus
Thermal effect.It should be noted that above-mentioned rule is the rule that applicant obtains with numerical simulation through a large number of experiments, it is not
The common knowledge or conventional means of this field.
Preferably, center of the diamond shape through hole center apart from heating element is remoter, then on vertical direction unit length electricity
The heating power for hindering heater is bigger.
Because by experiment and numerical simulation it is known that outward, then the volume for needing to heat is bigger, especially most
Outside needs the fluid in the fluid and heating tube of heated periphery.The present invention is added by electric heater distance in setting heating tube
The variation of the heating power at thermal part center further improves homogeneous heating degree and heating efficiency.
Preferably, center of the diamond shape through-hole apart from heating element is remoter, then the resistance of unit length adds on vertical direction
The amplitude that the heating power of hot device is increasing constantly increases.By so rule setting, homogeneous heating is further improved
Degree and heating efficiency.
Preferably, along short transverse (i.e. direction from the bottom up, appear below along short transverse, if do not had
Specified otherwise all refers to direction from the bottom up), the aperture is set as multiple rows of.
It is multiple rows of by being arranged, it is ensured that different height and position influent stream bodies avoids independent position influent stream body, causes
That heats is uneven, while the fluid avoided enter into is evaporated, and causes to dry up in heating tube.
Preferably, the distribution density of the aperture is smaller and smaller along short transverse.The density of aperture distribution is increasingly
It is small, that is, mean the fewer and fewer of aperture distribution, the area of aperture is also just smaller and smaller.
By a large amount of numerical simulation and its experimental studies have found that, by setting aperture distribution density it is smaller and smaller, mainly
The reason is that guaranteeing that most of fluid is heated in lower part, become constantly there is fluid to enter heating tube in steam uphill process in fluid
3, continuous heating.If lower inflow body is few, lower flow fast vaporizing may cause, cause pressure in heating tube 3 excessive,
Cause the fluid on top also because pressure considerations cannot be introduced into heating tube.Reduce the dry of heating tube, while improving heating
Efficiency.
Further preferably, along short transverse, the amplitude that the distribution density of the aperture is smaller and smaller constantly increases.
By largely testing and numerical simulation is by the variation of above-mentioned aperture distribution density to further increase
Heating efficiency improves the output efficiency of steam, while can reduce dry in heating tube.
Preferably, the area of single aperture is smaller and smaller along short transverse.Further preferably, along short transverse,
The amplitude that the area of single aperture is smaller and smaller constantly increases.Specific reason referring to aperture distribution density variation.
Preferably, the sum of area of every rows of openings is smaller and smaller along short transverse.Preferably, along height
Direction is spent, the smaller and smaller amplitude of the sum of area of every rows of openings is continuously increased.Specific reason is referring to aperture distribution density
Variation.
Preferably, the spacing between every rows of openings is increasing along short transverse.Preferably, along height
Direction is spent, the increasing amplitude of the spacing between every rows of openings is continuously increased.Specific reason is referring to aperture distribution density
Variation.
Preferably, the heating power of the unit length of electrically heated rod 9 is constantly reduced along short transverse.By setting
The heating power for setting electrically heated rod 9 is constantly reduced, and guarantees that the fluid of lower part quickly heats, then hot fluid passes through free convection
Top is arrived, the fluid outside the fluid on top and the heating tube 3 of its underpart rapidly enters, and can further increase heating effect
Rate.By largely testing and numerical simulation is by the variation of above-mentioned heating tube heating power can further increase 10%
The heating efficiency of left and right saves heating time.
Preferably, the amplitude of the continuous reduction of the heating power of the unit length of electrically heated rod 9 is not along short transverse
Disconnected increase.
By largely testing and numerical simulation, by the variation of above-mentioned 9 heating power amplitude of electrically heated rod, Neng Goujin
One step improves 5% heating efficiency, further saves heating time.
Preferably, the same electrically heated rod 9 in the same heating element divides for multistage, it is different along short transverse
The heating power of the unit length of section is different.Wherein along short transverse, the heating power of the unit length of different sections is continuous
It reduces.Further preferably, reduced amplitude constantly increases.
Preferably, every section of length is identical.
Preferably, the heating power of every section of unit length is identical.
Specific reason is as above.
It is segmented by setting, it can be further such that being simple to manufacture conveniently.
It is learnt by analyzing and testing, the spacing between vertical direction heating element cannot be excessive, causes if excessive
The effect of steam generation is bad, while can not be too small, causes to be easy to dryout in heating tube if too small, similarly, the side of diamond shape
Length can not be too large or too small, excessive to cause heating uneven, too small to cause regular quadrangle and octagon distribution overstocked, causes
Flow resistance increases and processing cost increases.Therefore the present invention through a large number of experiments, is preferentially meeting steam quantity of steam
In the case of, so that being optimal of resistance, has arranged the optimal relationship of parameters.
Preferably, the distance between adjacent heating element is S1, the side length of regular quadrangle is K2, and heating element is positive four
Side tee section, the side length in heating element regular quadrangle section are B2, meet following require:
S1/B2=a-b* (10*K2/B2)；
Wherein a, b are parameters, wherein 0.735 < a < 0.740,2.67 <b < 2.68；
180<B2<360mm；
12<K2<45mm；
45<S1<170mm。
Further preferably, a=0.734, b=2.675;
Further preferably, with the increase of K2/B2, a is increasing, and b is smaller and smaller.
Preferably, the side length K2 of diamond shape through-hole is the average value of side length and outer side length in diamond shape through-hole, heating element is just
The side length B2 of quadrangular section is the average value of side length and outer side length in heating element regular quadrangle section.
The distance between adjacent heating element is that S1 is with the distance in the opposite face of adjacent heating element.Such as right part heating
The left side of component and the distance between the right side of left part heating element.
Preferably, with the increase of B2, K2 is also continuously increased.But with the increase of B2, the ever-increasing amplitude of K2
It is smaller and smaller.This rule variation is obtained by a large amount of numerical simulation and experiment, and the variation of above-mentioned rule, Neng Goujin are passed through
One step improves heat transfer effect, reduces noise.
Preferably, with the increase of B2, S1 constantly reduces.But with the increase of B2, the ever-reduced amplitude of S1 is got over
Come smaller.This rule variation is obtained by a large amount of numerical simulation and experiment, can be into one by the variation of above-mentioned rule
Step improves heat transfer effect, reduces noise.
Preferably, the side length in heating element regular quadrangle section is equal to the side length of the inner wall of evaporation tube.
Heating element height H is preferably 100-500mm, is further selected as 200-300mm.
For parameters such as other parameters, such as tube wall, shell wall thickness according to normal standard setting.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being defined by the scope defined by the claims..
Claims (9)
1. a kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorbs heat in evaporation part and evaporates, into condensation part heat release,
Then evaporation part is returned to by gravity, the evaporation part includes electric heating element, which is characterized in that the electric heating element is adding
The side that heat pipe extends sets up multiple, heating element is arranged in electric heating element, along vertical direction, between electric heating element
Spacing it is increasing.
2. gravity assisted heat pipe as described in claim 1, which is characterized in that capillary structure is arranged in inside heat pipe.
3. gravity assisted heat pipe as described in claim 1, which is characterized in that liquid is, ammonia fluid, methanol, acetone or heptane.
4. a kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorbs heat in evaporation part and evaporates, into condensation part heat release,
Then evaporation part is returned to by gravity, the evaporation part includes heating element, which is characterized in that the heating element is in vertical side
It upwardly extends, the heating element includes shell and the intracorporal main element of shell, and the main element is diamond shape through-hole and positive eight
Side shape through-hole composition, the side length of the diamond shape through-hole are equal to the side length of octagon through-hole, four sides point of the diamond shape through-hole
It is not the side of four different octagon through-holes, the mutual unconnected side of four of octagon through-hole is four differences respectively
Diamond shape through-hole side；The electric heating element is arranged in diamond shape through-hole.
5. gravity assisted heat pipe as claimed in claim 4, which is characterized in that the heating element is resistance heater.
6. gravity assisted heat pipe as claimed in claim 4, which is characterized in that resistance heater fills entire regular quadrangle channel.
7. a kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorbs heat in evaporation part and evaporates, into condensation part heat release,
Then evaporation part is returned to by gravity, the evaporation part includes electric heating element, which is characterized in that the electric heating element is perpendicular
Histogram sets up multiple, and along vertical direction, the heating power for the heating element arranged in different electric heating elements gradually increases
Add.
8. a kind of gravity assisted heat pipe, including evaporation part, condensation part, the liquid absorbs heat in evaporation part and evaporates, into condensation part heat release,
Then evaporation part is returned to by gravity, heating tube is arranged in the evaporation part, and the heating tube includes tube body and is arranged in tube body
Heating element, the heating tube is vertical direction setting, and fluid channel is arranged on the heating tube tube body, guarantees evaporation part
Fluid is able to enter heating tube and is heated；The heating element includes electric heater, and electric heater heats inside and outside heating element
Fluid；It is characterized in that, the heating element be set to along vertical direction it is multiple, fluid channel be arranged adjacent two
On the tube body being spaced between a heating element.
9. a kind of gravity assisted heat pipe, including evaporation part, condensation part, riser portions and falling portion, the liquid absorbs heat in evaporation part and evaporates,
Entering condensation part heat release by riser portions, evaporation part is then returned to by falling portion, the evaporation part includes electric heating element,
Be characterized in that, the heating element set up in the side that heating tube extends it is multiple, along heating tube fluid flow direction,
The side length of regular quadrangle is smaller and smaller.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245515.7A CN111486730B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with fluid channels arranged at intervals |
| CN201910086118.3A CN109631641B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe for heating fumigation-washing liquid medicine |
| CN201911245753.8A CN110906772B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable spacing |
| CN201911245514.2A CN110906771B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable heating power |
| CN201911245516.1A CN111486731B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable side length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910086118.3A CN109631641B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe for heating fumigation-washing liquid medicine |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911245516.1A Division CN111486731B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable side length |
| CN201911245514.2A Division CN110906771B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable heating power |
| CN201911245753.8A Division CN110906772B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable spacing |
| CN201911245515.7A Division CN111486730B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with fluid channels arranged at intervals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109631641A true CN109631641A (en) | 2019-04-16 |
| CN109631641B CN109631641B (en) | 2020-06-05 |
Family
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Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910086118.3A Active CN109631641B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe for heating fumigation-washing liquid medicine |
| CN201911245514.2A Active CN110906771B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable heating power |
| CN201911245515.7A Active CN111486730B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with fluid channels arranged at intervals |
| CN201911245753.8A Active CN110906772B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable spacing |
| CN201911245516.1A Active CN111486731B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable side length |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911245514.2A Active CN110906771B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable heating power |
| CN201911245515.7A Active CN111486730B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with fluid channels arranged at intervals |
| CN201911245753.8A Active CN110906772B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable spacing |
| CN201911245516.1A Active CN111486731B (en) | 2019-01-29 | 2019-01-29 | Gravity heat pipe with variable side length |
Country Status (1)
| Country | Link |
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| CN (5) | CN109631641B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628836A (en) * | 2017-02-23 | 2017-05-10 | 重庆江东机械有限责任公司 | Insulated conveying system, insulated method thereof and application |
| CN114440676A (en) * | 2020-11-05 | 2022-05-06 | 中北大学 | Multi-triangular-wall velocity field drainage gravity heat pipe |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776370B (en) * | 2020-11-03 | 2022-12-16 | 山东交通学院 | Curved arc wall drainage loop heat pipe |
| CN113776371B (en) * | 2020-11-03 | 2022-12-16 | 山东交通学院 | Linear wall guide loop heat pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448662A (en) * | 2002-03-29 | 2003-10-15 | 陈烈涛 | Flue duct heat pipe evaporator and separated heat pipe system therefor |
| KR20070113753A (en) * | 2006-05-26 | 2007-11-29 | (주)히트로닉스 | Vinegar power saving triple structure heat-pipe heating system |
| EP2388534A2 (en) * | 2010-05-21 | 2011-11-23 | Yang Shun-Chi | Energy-saving water boiler |
| CN103363571A (en) * | 2013-08-08 | 2013-10-23 | 邹平伟瑞制冷材料有限公司 | Superconductive heat pipe electric heater |
| CN105277025A (en) * | 2014-06-27 | 2016-01-27 | 程长青 | Hollow heat pipe radiator |
| CN107664446A (en) * | 2016-07-29 | 2018-02-06 | 赵炜 | A kind of heat pipe of intelligent temperature control |
| CN108150986A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fuse salt phase-transition heat-storage electric boiler |
-
2019
- 2019-01-29 CN CN201910086118.3A patent/CN109631641B/en active Active
- 2019-01-29 CN CN201911245514.2A patent/CN110906771B/en active Active
- 2019-01-29 CN CN201911245515.7A patent/CN111486730B/en active Active
- 2019-01-29 CN CN201911245753.8A patent/CN110906772B/en active Active
- 2019-01-29 CN CN201911245516.1A patent/CN111486731B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448662A (en) * | 2002-03-29 | 2003-10-15 | 陈烈涛 | Flue duct heat pipe evaporator and separated heat pipe system therefor |
| KR20070113753A (en) * | 2006-05-26 | 2007-11-29 | (주)히트로닉스 | Vinegar power saving triple structure heat-pipe heating system |
| EP2388534A2 (en) * | 2010-05-21 | 2011-11-23 | Yang Shun-Chi | Energy-saving water boiler |
| CN103363571A (en) * | 2013-08-08 | 2013-10-23 | 邹平伟瑞制冷材料有限公司 | Superconductive heat pipe electric heater |
| CN105277025A (en) * | 2014-06-27 | 2016-01-27 | 程长青 | Hollow heat pipe radiator |
| CN107664446A (en) * | 2016-07-29 | 2018-02-06 | 赵炜 | A kind of heat pipe of intelligent temperature control |
| CN108150986A (en) * | 2017-12-27 | 2018-06-12 | 东南大学 | A kind of fuse salt phase-transition heat-storage electric boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628836A (en) * | 2017-02-23 | 2017-05-10 | 重庆江东机械有限责任公司 | Insulated conveying system, insulated method thereof and application |
| CN114440676A (en) * | 2020-11-05 | 2022-05-06 | 中北大学 | Multi-triangular-wall velocity field drainage gravity heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110906772A (en) | 2020-03-24 |
| CN111486730A (en) | 2020-08-04 |
| CN111486730B (en) | 2021-03-19 |
| CN109631641B (en) | 2020-06-05 |
| CN110906772B (en) | 2021-02-09 |
| CN110906771A (en) | 2020-03-24 |
| CN111486731A (en) | 2020-08-04 |
| CN110906771B (en) | 2021-06-01 |
| CN111486731B (en) | 2021-03-23 |
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