CN109405589A - A kind of spherical heat exchanger that two-tube-pass independently exchanges heat - Google Patents
A kind of spherical heat exchanger that two-tube-pass independently exchanges heat Download PDFInfo
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- CN109405589A CN109405589A CN201811455407.8A CN201811455407A CN109405589A CN 109405589 A CN109405589 A CN 109405589A CN 201811455407 A CN201811455407 A CN 201811455407A CN 109405589 A CN109405589 A CN 109405589A
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- 239000012774 insulation material Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 description 25
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 11
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- 238000005516 engineering process Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
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- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
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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
- 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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
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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
- 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
- F28D7/02—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 being helically coiled
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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
- 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
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses the spherical heat exchangers that a kind of two-tube-pass independently exchanges heat, including spherical shell, spiral heat exchange tube and straight heat exchanger tube, the upper/lower terminal of shell is respectively equipped with directly-heated stream input port and directly-heated stream delivery outlet, and the both ends of straight heat exchanger tube are connect with directly-heated stream input port and direct current thermal output mouth respectively；The upper end of shell is equipped with cold flow delivery outlet and spiral hot-fluid input port, and the lower end of shell is equipped with cold flow input port and spiral hot-fluid delivery outlet；The spiral heat exchange tube is socketed on straight heat exchanger tube, and the both ends of the spiral heat exchange tube are connect with spiral hot-fluid input port and spiral hot-fluid delivery outlet respectively；The cold flow delivery outlet and cold flow input port are communicated with the inner cavity of shell；The inner cavity of the shell sets spiral deflector, and the cold flow input port is connected to cold flow delivery outlet by the inner cavity of shell.The present invention can extend cold fluid and hot fluid heat-exchange time, and cold fluid and hot fluid adverse current improves heat exchange efficiency.
Description
Technical field
The present invention relates to heat exchanger technologies, and in particular to a kind of spherical heat exchanger that two-tube-pass independently exchanges heat.
Background technique
Heat exchanger is the equipment that the partial heat of hot fluid is passed to cold fluid, also known as heat exchanger.Wall-type heat exchange
Device is to guarantee system stable operation, technological temperature in industrial production and pressure drop is reasonable, pass of energy saving and recovery waste heat, waste heat
Button apparatus, and metal consumption, in terms of all occupy biggish specific gravity, be widely used in heating, it is cooling, kill
Bacterium, evaporation, condensation, heating power are added etc..
Between current novel dividing wall type high-performance heat exchanger is improved on the basis of tradition heat exchange by heat transfer enhancement technology
The heat exchange efficiency of wall type heat exchanger reduces the energy loss in heat transfer process.In terms of heat transfer enhancement technology, new and effective partition
Formula heat exchanger will achieve the purpose that within the unit time, the heat of unit heat transfer area transmitting increases as far as possible.And strengthen at present
There are three the approach of heat transfer is main: improving heat transfer coefficient, expand unit heat transfer area, increase heat transfer temperature difference.
New and effective dividing wall type heat exchanger improves the specific means of heat exchange efficiency are as follows: changes the pipe of traditional dividing wall type heat exchanger
The structure of journey and shell side, increases the turbulence effects of fluid, to reduce boundary layer thickness, or the formation and increasing in interference boundary layer
Big unit heat exchange area.For shell-and-tube heat exchanger, the augmentation of heat transfer of tube side is usually to be processed to obtain various knots to light pipe
The special pipe of structure, such as spirally corrugated tube, cross grooved pipe, bellows, low thread finned tube, spiral flat tube, porous surface tube, needle wing
Insertion piece etc. in pipe, pipe.The augmentation of heat transfer of shell side is by designing baffle plate of different shapes, as segmental baffle, tower connect formula
Helical baffles, continuous helical deflecting plate etc..But the shell-side flow path that segmental baffle is formed flows fluid in Z-shaped, fluid
The direction of motion and speed all changing, and there are very big flow dead zones.The spiral camber of bridging type helical baffles
There are serious triangle leakage current areas, so that the flowing of shell-side fluid deviates from spiral flow, the heat transfer property of shell side are caused to decline.
And continuous helical deflecting plate then makes shell-side fluid flow through spiral camber in the form of continuous turbulent flow, improves the heat transfer system of shell side
Number, reduces kinetic equation loss, while continuous helical deflecting plate is a kind of full support construction, reduces dividing wall type heat exchanger because stream causes
Vibration leads to the risk of failure.To satisfy the use demand, have increasing need for that there are higher heat exchange efficiency and turbulence effects at present
Heat exchanger, while being also required to the heat exchanger suitable for various working environments.
Summary of the invention
The purpose of the invention is to overcome above the shortcomings of the prior art, provides a kind of two-tube-pass and independently exchange heat
Spherical heat exchanger.The spherical heat exchanger that this two-tube-pass independently exchanges heat improves turbulivity, extends cold fluid and hot fluid heat-exchange time, strengthens
Heat transfer.
The purpose of the present invention is realized by the following technical solution: the spherical heat exchanger that this two-tube-pass independently exchanges heat, including
Spherical shell, spiral heat exchange tube and straight heat exchanger tube, the upper/lower terminal of the shell are respectively equipped with directly-heated stream input port and directly-heated
Delivery outlet is flowed, the both ends of the straight heat exchanger tube are connect with directly-heated stream input port and directly-heated stream delivery outlet respectively；The shell it is upper
End is equipped with cold flow delivery outlet and spiral hot-fluid input port, and the cold flow delivery outlet and spiral hot-fluid input port are located at direct current
The two sides of heat input mouth, the lower end of the shell are equipped with cold flow input port and spiral hot-fluid delivery outlet, and the cold flow input port
The two sides of directly-heated stream delivery outlet are located at spiral hot-fluid delivery outlet；The spiral heat exchange tube is socketed on straight heat exchanger tube, and institute
The both ends for stating spiral heat exchange tube are connect with spiral hot-fluid input port and spiral hot-fluid delivery outlet respectively；The cold flow delivery outlet and cold
Stream input port is communicated with the inner cavity of shell；The inner cavity of the shell sets spiral deflector, and the cold flow input port and cold flow are defeated
Outlet is connected to by the inner cavity of shell.
Preferably, the screw diameter size of the spiral heat exchange tube gradually becomes smaller from the middle part of spiral heat exchange tube to both ends.
Preferably, the spiral heat exchange tube has a plurality of, and each spiral heat exchange tube is arranged in parallel, and adjacent two spirals are changed
There is spacing between heat pipe.
Preferably, the pipe diameter size of the spiral heat exchange tube gradually becomes smaller from the middle part of spiral heat exchange tube to both ends.
Preferably, stream part is thanksed for your hospitality in insertion in the straight heat exchanger tube.
Preferably, the spoiler is any one in twisted strip, spiral winding, flight and static mixer.
Preferably, the straight heat exchanger tube has a plurality of, and each straight heat exchanger tube of item is arranged in parallel, and adjacent two straight heat exchanger tubes it
Between have spacing.
Preferably, the shell is the double-deck steel structure, and between two layers of steel in the shell filled with high temperature resistant every
Hot material.
Preferably, the shell includes upper half-shell and housing lower half, and the upper half-shell and housing lower half pass through clip
Component is fixedly connected.
Preferably, the width size of the spiral deflector gradually becomes smaller from the middle part of spiral deflector to both ends, described
There is gap, the size of this gap is 0.2mm~0.5mm between the outer rim of spiral deflector and the inner wall of shell.
The present invention has the advantage that compared with the existing technology
1, extend cold fluid and hot fluid heat-exchange time, cold fluid and hot fluid adverse current improves heat exchange efficiency.It is exchanged heat in the present invention using spiral
Pipe and straight heat exchanger tube constitute tube side, and wherein spiral heat exchange tube can extend hot fluid in the time of tube side, while in the inner cavity of shell
Continuous spiral deflector is set, and to start the shell side of spiral in shell, the shell side of this spiral extends cold fluid in shell side
Time, while the hot fluid in the cold fluid and tube side in shell side flows in opposite directions, therefore can greatly improve cold and hot
Heat exchange efficiency between fluid.Meanwhile the pipe that the inner cavity of shell and the shell side and spiral heat exchange tube of spiral stream guidance pipe composition are constituted
The turbulivity of fluid can be improved in journey, further increases heat exchange efficiency.
2, it is in charge of heat exchange, the dual function with spiral heat exchange tube and straight heat exchanger tube.Spiral heat exchange tube and straight in the present invention
Heat exchanger tube tube side is independent, and when use environment is a kind of hot fluid, due to the difference of the time of heat exchange, different temperatures can be obtained
Same fluid.When use environment is two different hot fluids, cold fluid can exchange heat with it simultaneously, and the benefit of cold fluid can be improved
With the use of rate and reduction various heat exchange device, simplify industrial design.
3, heat transfer coefficient, good effect of heat exchange are improved, and there is self certain scale removal ability.Due to being inserted into straight heat exchanger tube
There are spoiler and spiral heat exchange tube all the flowing of fluid can be made to form secondary circulation, along with the caliber and spiral of spiral heat exchange tube
Diameter is all made of gradual manner, obtains it compared with high turbulence compared under low reynolds number, reduces the thickness in boundary layer, improve
Heat transfer coefficient and enhance heat transfer effect.And since tube side and shell side all have compared with high turbulence, it is easy to be rushed after making its dirt
It brushes off, quite convenient for maintenance.
4, uniform force, anti-pressure ability is strong, can be used for high temperature and pressure occasion, while unit bodies specific surface area is maximum.With it is general
Lead to cylindric heat exchanger to compare, under conditions of same diameter, spherical heat exchanger internal stress is minimum, and uniform force, carrying
The ability of fluid is twice than cylindrical heat exchanger, therefore spherical outer cover of heat exchanger thickness only needs the one of common cylinder needle recuperator
Half.Under same volume and uniform pressure, the surface area of spherical heat exchanger is minimum, therefore required steel area is small.It is changed using spherical shape
The consumption of steel can be greatly reduced in hot device, generally save 30%~45%, in addition, spherical heat exchanger occupied area is small, basis
Engineering is small, can save land area.
5, can any angle, any space is placed, applied widely.Ordinary heat exchanger generally has certain length-width ratio,
Also there is its particular support, when use requires have the spatial position for meeting its size and occupied area, this limitation upper to a certain degree
Its scope of application.In contrast, it since sphere itself and the design of heat exchanger inside and outside all have high symmetry, does not need yet
Particular support, needed for it being made to meet certain use occasions with Arbitrary Rotation, or even can also be in the space for leaving ground
It works normally, there is the extremely wide scope of application.
6, the thermal expansion stress restrained is small.There is certain free segment at the tube bank both ends of spiral heat exchange tube and straight heat exchanger tube,
Thermal expansion stress can be not present with self-expansion, therefore when the temperature difference of two kinds of fluids of heat exchange is larger.
7, the thermal loss by shell is reduced, manufacturing cost is saved.The shell of spherical heat exchanger is the double-deck steel knot
Structure, central filler high-temperature resistant thermal insulating material.Compared with the heat-insulating method vacuumized, filling adiabatic method is more economical, is conducive to
Reduce the manufacturing cost of the spherical heat exchanger of helical pipe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the spherical heat exchanger that two-tube-pass of the invention independently exchanges heat.
Fig. 2 is the cross-sectional view for the spherical heat exchanger that two-tube-pass of the invention independently exchanges heat.
Fig. 3 is the structural schematic diagram of spiral heat exchange tube of the invention.
Fig. 4 is the structural schematic diagram of straight heat exchanger tube of the invention.
Fig. 5 is the structural schematic diagram of spiral deflector of the invention.
Fig. 6 is the structural schematic diagram of upper half-shell of the invention.
Fig. 7 is the structural schematic diagram of housing lower half of the invention.
Fig. 8 is the structural schematic diagram of straight tube fixed plate of the invention.
Fig. 9 is the structural schematic diagram of helix tube fixed plate of the invention.
Figure 10 is the perspective view of the straight heat exchanger tube of embodiment 1.
Figure 11 is the perspective view of the straight heat exchanger tube of embodiment 2.
Figure 12 is the perspective view of the straight heat exchanger tube of embodiment 3.
Figure 13 is the structural schematic diagram of hoop component of the invention.
Wherein, 1 is shell, and 2 be spiral heat exchange tube, and 3 be straight heat exchanger tube, and 4 be directly-heated stream input port, and 5 export for directly-heated stream
Mouthful, 6 be cold flow delivery outlet, and 7 be cold flow input port, and 8 be spiral hot-fluid input port, and 9 be spiral hot-fluid delivery outlet, and 10 lead for spiral
Flowing plate, 11 be spoiler, and 12 be hoop component, and 13 be snap ring, and 14 be bolt, and 15 be straight tube fixed plate, and 16 fix for helix tube
Plate, 17 be upper half-shell, and 18 be housing lower half.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1
The spherical heat exchanger that two-tube-pass as shown in Figures 1 to 5 independently exchanges heat, including spherical shell, spiral heat exchange tube
With straight heat exchanger tube, the upper/lower terminal of the shell is respectively equipped with directly-heated stream input port and directly-heated stream delivery outlet, the straight heat exchanger tube
Both ends connect respectively with directly-heated stream input port and directly-heated stream delivery outlet；The upper end of the shell is equipped with cold flow delivery outlet and spiral
Hot-fluid input port, and the cold flow delivery outlet and spiral hot-fluid input port are located at the two sides of direct current heat input mouth, the shell
The lower end of body is equipped with cold flow input port and spiral hot-fluid delivery outlet, and the cold flow input port and spiral hot-fluid delivery outlet distinguish position
In the two sides of directly-heated stream delivery outlet；The spiral heat exchange tube is socketed on straight heat exchanger tube, and the both ends difference of the spiral heat exchange tube
It is connect with spiral hot-fluid input port and spiral hot-fluid delivery outlet；The cold flow delivery outlet and cold flow input port with the inner cavity of shell
It communicates；The inner cavity of the shell sets spiral deflector, and the cold flow input port is connected to cold flow delivery outlet by the inner cavity of shell.
Specifically, directly changing heat exchanger tube constitutes straight tube journey, and spiral heat exchange tube constitutes spiral tube side, i.e., the spherical heat exchanger in the present embodiment
It is exchanged heat using two-tube-pass, and mutually indepedent between straight tube journey and spiral tube side.And the shell in the spherical heat exchanger in the present embodiment
Inner cavity and spiral deflector of the journey by shell, spiral deflector are continuous plate, the then shell side constituted also helical form.Therefore this reality
The spherical heat exchanger applied in example has the tube side of spiral and the shell side of spiral, and the turbulivity of fluid can be improved, and extends fluid in shell
The middle time of journey improves heat exchange efficiency, enhanced heat transfer effect.For the stability for guaranteeing straight heat exchanger tube and spiral heat exchange tube installation,
As shown in Fig. 2,4 and Fig. 8, straight tube fixed plate, the both ends of straight heat exchanger tube are equipped in directly-heated stream input port and directly-heated stream delivery outlet
It is fixedly connected respectively with corresponding straight tube fixed plate.As shown in Figure 3 and Figure 9, it is inputted in spiral hot-fluid delivery outlet and spiral hot-fluid
Mouth is equipped with helix tube fixed plate, and the both ends of spiral heat exchange tube are connected with corresponding helix tube fixed plate respectively.
The screw diameter size of the spiral heat exchange tube gradually becomes smaller from the middle part of spiral heat exchange tube to both ends.The spiral
The pipe diameter size of heat exchanger tube gradually becomes smaller from the middle part of spiral heat exchange tube to both ends.The screw diameter and caliber of spiral heat exchange tube are equal
Heat exchange efficiency is further improved so as to further extend time of the hot fluid in spiral tube side using grading structure.
The spiral heat exchange tube have it is a plurality of, each spiral heat exchange tube is arranged in parallel, and adjacent two spiral heat exchange tubes it
Between have spacing.The straight heat exchanger tube have it is a plurality of, each straight heat exchanger tube of item is arranged in parallel, and has between adjacent two straight heat exchanger tubes
There is spacing.The straight heat exchanger tube of a plurality of spiral heat exchange tube and the more item does not contact with each other, makes in corresponding spiral heat exchange tube and straight
Hot fluid in heat exchanger tube is independent of each other, to guarantee the heat exchange efficiency in the cold flow in tube side in hot fluid and shell side.
Stream part is thanksed for your hospitality in insertion in the straight heat exchanger tube.The spoiler is twisted strip, spiral winding, flight and static mixing
Any one in device.As shown in Figure 10, spoiler uses spiral winding in the present embodiment.This structure can be such that hot fluid is directly changing
It is generated in heat pipe and rotates and cause secondary circulation, to also have the function of scale removal while augmentation of heat transfer.
The shell is the double-deck steel structure, and high temperature resistant heat insulation material is filled between two layers of steel in the shell.
Specifically, high temperature resistant heat insulation material thermal coefficient is 0.5~0.8W/ (m2K), specifically microporous calcium silicate etc. can be selected porous
One of the fiber-based materials such as type heat-insulating material, rock wool or expanded perlite equigranular heat-insulating material.The double-deck steel structure
And high temperature resistant heat insulation material, it can make shell that there is good heat insulation effect, avoid heat losses, and save manufacturing cost.
The shell includes upper half-shell and housing lower half, and the upper half-shell and housing lower half are fixed by hoop component
Connection.As shown in Fig. 2, Fig. 6 and Fig. 7, after upper half-shell and housing lower half are to connecting, pair between upper half-shell and housing lower half
The place of connecing is locked by hoop component.As shown in figure 13, and hoop component is made of snap ring and bolt.This structure is simple, side
Just it installs.
The width size of the spiral deflector gradually becomes smaller from the middle part of spiral deflector to both ends.The spiral stream guidance
There is gap, the size of this gap is 0.2mm between the outer rim of plate and the inner wall of shell.This spiral deflector also uses gradual change
Structure, then the compatible degree of spiral deflector and shell is higher, so that cold fluid is flowed along continuous spiral deflector, forms spiral shell
Shape fluid is revolved, turbulivity is further increased, improves heat exchange efficiency.
Specifically, the parameter that each component uses in spherical heat exchanger is as follows in the present embodiment:
The specific work process for the spherator that this twin flue independently exchanges heat is as follows:
Hot fluid is inputted from spiral hot-fluid input port and straight tube hot-fluid input port respectively, and hot fluid is in spiral heat exchange tube and directly
The flowing of heat exchanger tube is mutually indepedent, does not interfere with each other.Meanwhile cold fluid is inputted from cold flow input port, in continuous spiral deflector
Guide functions under the shell side that constitutes in shell and spiral deflector helically line flows, cold fluid and hot fluid flow direction phase
Instead, i.e., cold fluid and hot fluid forms adverse current.Hot fluid passes through respective heat exchanger tube (spiral heat exchange tube or straight heat exchanger tube) tube wall and cold flow
The exchange of body progress heat.Hot fluid after heat exchange is discharged from spiral hot-fluid delivery outlet and straight tube hot-fluid delivery outlet respectively, cold
Fluid is then discharged from cold flow delivery outlet.
The process of heat exchange is carried out in above-mentioned hot fluid and cold fluid, it is resistance to due to being used between spherical shell double-layer stainless steel
High temperature thermal insulation material filling, effectively reduces unnecessary thermal loss in heat exchanging process.Spiral shell of the hot fluid in variable diameters
When revolving heat exchange pipeline flowing, due to the effect of centrifugal force, the secondary circulation perpendicular to main flow direction can be generated, strengthen pipe inner edge
The disturbance of interlayer generates turbulence effects；In the flowing of straight tube heat exchange pipeline, since insert draws fluid generation rotation in straight tube
Secondary Flow is played, radial mixing, augmentation of heat transfer are promoted.Helically line flows cold fluid simultaneously, promotes fluid stagnant on heat transfer interface
The turbulivity of fluid layer.The above process makes fluid improve flow velocity, and deadband eliminating avoids sediment from generating.Due to spiral heat exchange tube
It is mutually indepedent with straight heat exchanger tube, and heat transfer process and heat transfer effect difference, when the hot fluid of input is same type, in spiral
Pipe hot-fluid delivery outlet and straight tube hot-fluid delivery outlet respectively obtain the hot fluid of different temperatures；When inputting different hot fluids, two
Kind hot fluid exchanges heat simultaneously and does not have an impact mutually.Therefore, different heat exchange can be used according to different needs in the industry
Mode.This heat transfer process reduces thermal loss 55% compared with traditional heat transfer process, extends 2 times of heat-exchange time, improves heat transfer system
5 times of number, while 2 times of voltage endurance capability are improved, the consumption 35% of steel is reduced, space 50% is saved.
Embodiment 2
The spherator that this twin flue independently exchanges heat is in addition to following technical characteristic with embodiment 1: insertion in the straight heat exchanger tube
There is spoiler.As shown in figure 11, the spoiler is flight.Flight and spiral winding have same effect, and equally may be used
So that hot fluid is generated secondary circulation in straight heat exchanger tube, improves heat exchange efficiency.
Embodiment 3
The spherator that this twin flue independently exchanges heat is in addition to following technical characteristic with embodiment 1: insertion in the straight heat exchanger tube
There is spoiler.As shown in figure 12, the spoiler is static mixer.Static mixer and spiral winding have same effect
Fruit can equally make hot fluid generate secondary circulation in straight heat exchanger tube, improve heat exchange efficiency.
Above-mentioned specific embodiment is the preferred embodiment of the present invention, can not be limited the invention, and others are appointed
The change or other equivalent substitute modes what is made without departing from technical solution of the present invention, are included in protection of the invention
Within the scope of.
Claims (10)
1. the spherical heat exchanger that a kind of two-tube-pass independently exchanges heat, it is characterised in that: including spherical shell, spiral heat exchange tube and straight
Heat exchanger tube, the upper/lower terminal of the shell are respectively equipped with directly-heated stream input port and directly-heated stream delivery outlet, and the two of the straight heat exchanger tube
End is connect with directly-heated stream input port and directly-heated stream delivery outlet respectively；The upper end of the shell is equipped with cold flow delivery outlet and spiral hot-fluid
Input port, and the cold flow delivery outlet and spiral hot-fluid input port are located at the two sides of direct current heat input mouth, the shell
Lower end is equipped with cold flow input port and spiral hot-fluid delivery outlet, and the cold flow input port and spiral hot-fluid delivery outlet are located at directly
The two sides of hot-fluid delivery outlet；The spiral heat exchange tube is socketed on straight heat exchanger tube, and the both ends of the spiral heat exchange tube respectively with spiral shell
Rotation hot-fluid input port is connected with spiral hot-fluid delivery outlet；The cold flow delivery outlet and cold flow input port with the inner cavity phase of shell
It is logical；The inner cavity of the shell sets spiral deflector, and the cold flow input port is connected to cold flow delivery outlet by the inner cavity of shell.
2. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the spiral heat exchange tube
Screw diameter size gradually become smaller from the middle part of spiral heat exchange tube to both ends.
3. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the spiral heat exchange tube
With a plurality of, each spiral heat exchange tube is arranged in parallel, and has spacing between adjacent two spiral heat exchange tubes.
4. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the spiral heat exchange tube
Pipe diameter size gradually become smaller from the middle part of spiral heat exchange tube to both ends.
5. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: in the straight heat exchanger tube
Inserted with spoiler.
6. the spherical heat exchanger that two-tube-pass according to claim 5 independently exchanges heat, it is characterised in that: the spoiler is to turn round
Any one in band, spiral winding, flight and static mixer.
7. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the straight heat exchanger tube tool
Have a plurality of, each straight heat exchanger tube of item is arranged in parallel, and has spacing between adjacent two straight heat exchanger tubes.
8. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the shell is bilayer
Steel structure, and high temperature resistant heat insulation material is filled between two layers of steel in the shell.
9. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the shell includes upper
Half shell and housing lower half, the upper half-shell are fixedly connected with housing lower half by hoop component.
10. the spherical heat exchanger that two-tube-pass according to claim 1 independently exchanges heat, it is characterised in that: the spiral stream guidance
The width size of plate gradually becomes smaller from the middle part of spiral deflector to both ends；And the spiral deflector outer rim and shell it is interior
There is gap, the size of this gap is 0.2mm~0.5mm between wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN110057084A (en) * | 2019-03-26 | 2019-07-26 | 淮南市知产创新技术研究有限公司 | A kind of multiple branch heat exchange device for air and heat change method |
| CN111779550A (en) * | 2020-06-19 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Regulating device for supercritical carbon dioxide turbine |
| CN113432454A (en) * | 2021-07-14 | 2021-09-24 | 哈尔滨锅炉厂有限责任公司 | Non-circular cross-section double-tube-pass spiral heat exchanger tube bundle structure |
| CN114353556A (en) * | 2021-12-31 | 2022-04-15 | 无锡市张华医药设备有限公司 | Large-scale strip-wound spiral micro-channel heat exchanger and brazing process thereof |
| CN114636326A (en) * | 2022-03-10 | 2022-06-17 | 南京理工大学 | Novel efficient heat exchanger imitating wheel type |
| CN114705063A (en) * | 2022-03-29 | 2022-07-05 | 张家港氢云新能源研究院有限公司 | High-efficient heat transfer vaporizer |
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