CN109520351A - A kind of enhanced heat exchange condenser pipe network type heat exchanger and preparation method thereof - Google Patents
A kind of enhanced heat exchange condenser pipe network type heat exchanger and preparation method thereof Download PDFInfo
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- CN109520351A CN109520351A CN201811427245.7A CN201811427245A CN109520351A CN 109520351 A CN109520351 A CN 109520351A CN 201811427245 A CN201811427245 A CN 201811427245A CN 109520351 A CN109520351 A CN 109520351A
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- heat exchanger
- network type
- condenser pipe
- heat exchange
- pipe network
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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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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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 a kind of enhanced heat exchange condenser pipe network type heat exchanger of out-tubular condensing apparatus field and preparation method thereof, the heat exchanger intersects the hollow network type channel design of connection using condenser pipe, and the condenser pipe caliber is less than 3mm.The present invention increases the heat exchange area of working substance steam and heat exchanger by the design of condenser pipe network structure, capillary pressure is realized simultaneously by way of reducing condenser pipe caliber and pula support-Rayleigh instability effect plays the effect that local coagulation surface thickness of liquid film is thinned, significantly enhance heat exchanger condensation heat transfer effect, the present invention greatly reduces the difficulty of processing and processing cost of heat exchanger simultaneously, overcoming existing heat exchanger can not bend, and transport and assemble the defect of flexibility difference.
Description
Technical field
The present invention relates to out-tubular condensing apparatus field more particularly to a kind of enhanced heat exchange condenser pipe network type heat exchanger and its
Preparation method.
Background technique
Out-tubular condensing equipment is widely used in high energy consumption industrial circle, is that one kind installs heat exchanger in closing shell,
The equipment for condensing working substance steam by heat exchange.It is connected with cryogenic liquid in heat exchanger tube, manages outer high temperature refrigerant steam and exists
The condensation of heat exchanger tube surface, heat transfer are taken away to the interior coolant liquid of pipe and by circulation.Condenser pipe used in existing heat exchanger according to
Surface texture can be divided into one-dimensional surface light pipe, two-dimensional surface ribbed pipe and three-dimensional surface ribbed pipe, and the diameter of condenser pipe is generally big
In 6mm.
Heat exchange area and thickness of liquid film distribution are to influence two main causes of heat transfer effect.In out-tubular condensing equipment,
A kind of common heat exchanger structure is parallel hollow tube bundle array, and in the biggish situation of caliber, film condensation falls off by weight
Advocate to lead, the influence of surface tension exchange thermal energy power can be ignored, therefore heat transfer effect is poor.Middle period the 1940s with
It has been come that, two-dimentional ribbed pipe is promoted rapidly in refrigeration industry, and since the seventies, ribbed pipe technology is further developed, and three-dimensional ribbed pipe obtains
Promote and apply, ribbed pipe structure can not only increase heat exchange area, but also can use surface tension be partially formed in fin it is thin
Liquid film, significant enhanced heat exchange, but ribbed pipe is detained because intensive rib structure will cause tube bottom lime set, forms flooding area, leads to office
Portion's exchange capability of heat is deteriorated, at the same ribbed pipe grade it is densely arranged surface texture process is complicated, higher cost, Er Qiewu
Method bending storage, transport and assembly flexibility are poor.
With the reduction of condenser pipe caliber, especially when caliber is less than 3mm, in addition to gravity, surface tension edge
Axially additional capillary pressure will cause liquid film in the uneven distribution of condenser pipe axial direction to condenser pipe, and when caliber is smaller, liquid
Film can coat the condenser pipe of entire horizontal direction, and the unstability of gas-liquid interface will cause thin liquid film and locally gather, and form drop,
This effect is referred to as pula support-Rayleigh unstability.Capillary pressure and pula support-Rayleigh unstability bring thickness of liquid film
Uneven distribution can significant Augmentation of condensation heat transfer ability.
Therefore, those skilled in the art is dedicated to developing a kind of enhanced heat exchange condenser pipe network type heat exchanger, by cold
The network structure of solidifying pipe increases the heat exchange area of working substance steam and heat exchanger, and effective use capillary pressure and pula Tuo-are auspicious
The thickness of liquid film that local coagulation surface is thinned in sharp unstability reduces simultaneously to significantly increase heat exchanger condensation heat transfer ability
The difficulty of processing and processing cost of heat exchanger.
Summary of the invention
In view of the above drawbacks of the prior art, the technical problem to be solved by the present invention is to how to increase working substance steam with
The heat exchange area of heat exchanger is thinned the thickness of liquid film on local coagulation surface to enhance condensation heat transfer effect, while realizing heat exchange
The reduction of device difficulty of processing and processing cost overcomes existing heat exchanger that can not bend, and transports and assemble the defect of flexibility difference.
To achieve the above object, the present invention provides a kind of enhanced heat exchange condenser pipe network type heat exchangers, which is characterized in that
The heat exchanger intersects the hollow network type channel design of connection using condenser pipe, and the condenser pipe caliber is less than 3mm.
Further, the condenser pipe is one-dimensional surface light pipe.
Further, the condenser pipe cross-section of pipeline is round or rectangle.
Further, the bent curling of the heat exchanger.
The present invention also proposes a kind of preparation method of enhanced heat exchange condenser pipe network type heat exchanger, which is characterized in that described
Method the following steps are included:
Step 1 establishes network type channel solid model using software, and prints network type channel solid model；
Step 2, the pipe in the resulting network type channel solid model surface attachment material of step 1, as condensation managed network
Wall；
Step 3 eliminates the resulting network type channel solid model of step 1, leaves the condensation managed network formed in step 2
Tube wall, constitute have hollow network type channel design condenser pipe network type heat exchanger.
Further, the network type channel solid model in the step 1 is obtained using method for printing screen.
Further, the network type channel solid model in the step 1 is obtained using 3D printing method.
Further, the tube wall of the condensation managed network is prepared in the step 2 using electroplating forming method.
Further, the tube wall of the condensation managed network is prepared in the step 2 using film blowing.
Further, in the step 3 by the method for sintering or chemolysis by network type channel solid model
It eliminates.
Technical effect
A kind of enhanced heat exchange condenser pipe network type heat exchanger proposed by the invention at least has following technical effect:
(1) reduce condenser pipe caliber and intersect the hollow network type channel design of connection using condenser pipe, realize same
Under cooling working medium flow, working substance steam and heat exchanger obtain bigger heat exchange area, and exchange capability of heat is improved；
(2) reducing condenser pipe caliber keeps effect of surface tension during condensation heat transfer even more important, and surface tension is drawn
The capillary pressure and pula support-Rayleigh instability effect along condenser pipe axial direction of hair can help reducer in regional area
Film thickness, to improve condensation heat transfer ability；
(3) finished surface structure is not needed, the difficulty of processing and processing cost of heat exchanger are substantially reduced；
(4) bending curling to a certain extent can be achieved, compared to traditional condenser pipe, have more in transport, fit on
Flexibility.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the enhanced heat exchange condenser pipe network type heat exchanger of a preferred embodiment of the invention；
Fig. 2 is the flow process chart of the enhanced heat exchange condenser pipe network type heat exchanger of a preferred embodiment of the invention.
Wherein, 1- step 1,2- step 2,3- step 3.
Specific embodiment
Multiple preferred embodiments of the invention are introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
As shown in Figure 1, being the structure of the enhanced heat exchange condenser pipe network type heat exchanger of a preferred embodiment of the invention
Schematic diagram, enhanced heat exchange condenser pipe network type heat exchanger intersect the hollow network type channel design of connection, this reality using condenser pipe
It applies condenser pipe in example and uses one-dimensional surface light pipe, relative to the ribbed pipe that will condense the pipe surface processing densely arranged structure of grade
Speech, condenser pipe greatly reduce the difficulty of processing and processing cost of heat exchanger using one-dimensional surface light pipe；Heat exchanger uses caliber
Condenser pipe less than 3mm, on the one hand, greatly strengthen effect of surface tension during condensation heat transfer, surface tension is along cold
Axially additional capillary pressure will cause uneven distribution of the film condensation in condenser pipe axial direction to solidifying pipe, on the other hand, when cold
When solidifying pipe caliber is less than 3mm, film condensation can coat the condenser pipe of entire horizontal direction, due to pula support-Rayleigh unstability
Effect, thin liquid film locally are gathered to form drop, will also result in the uneven distribution of film condensation, the uneven distribution of film condensation
Significantly enhance the condensation heat transfer function of heat exchanger；Condenser pipe can be processed as cross section as round, rectangle or other geometry
Shape, in the present embodiment, advantageous cross sections are the condenser pipe of rectangle；Heat exchanger intersects the hollow network of connection using condenser pipe
Formula channel design realizes under same cooling working medium flow, and working substance steam and heat exchanger obtain bigger heat exchange area, thus
Significantly increase the condensation heat transfer function of heat exchanger；Simultaneously because enhanced heat exchange condenser pipe network type heat exchanger proposed by the invention
Has the characteristics that the big major diameter of small diameter tube, heat exchanger bent curling to a certain extent has more in transport and assembling process
More flexibilities.
Enhanced heat exchange condenser pipe network type heat exchanger proposed by the invention is mounted on to the closing shell of out-tubular condensing device
In vivo, cooling water is passed through in condensation managed network, high temperature refrigerant steam is coagulated in the outer surface of heat exchanger condensation managed network
Film condensation is formed, heat is released to the surface of condensation managed network, the cooling water circulated by way of condensation heat transfer
Heat can be taken away.The surface tension of condensation managed network can cause film condensation thickness cold along the capillary pressure of condenser pipe axial direction
Uneven distribution in solidifying pipe axial direction, pula support-Rayleigh instability effect, which may also aid in, is thinned horizontal condenser pipe regional area
Film condensation thickness, to significantly increase the condensation heat transfer ability of heat exchanger.
As shown in Fig. 2, being the processing of the enhanced heat exchange condenser pipe network type heat exchanger of a preferred embodiment of the invention
Flow chart, specifically includes the following steps:
Step 1 is established network type channel solid model using software, and prints network type channel by 3D printing technique
Solid model, in the present embodiment, the preferred process for photocuring of 3D printing technique；
Step 2, using electroplating forming method, the network type channel solid model surface that 3D printing obtains is plated into homogeneous metal
Thin layer, as the tube wall of condensation managed network, in the present embodiment, the network type channel solid model for preferably obtaining 3D printing is made
For cathode, coated metal carries out electroplating operations as anode, and aluminium or copper can be used in coated metal, in the present embodiment, coating gold
Belong to preferred aluminium；
Step 3 is eliminated by the network type channel solid model that sintering method obtains 3D printing, leaves shape in step 2
At condensation managed network tube wall, constitute have hollow network type channel design condenser pipe network type heat exchanger.
In step 1, network type channel solid model can also be printed using method for printing screen, in step 2, also
In step 3, chemical dissolution method can also be used step 1 using the tube wall of film blowing preparation condensation managed network
The network type channel solid model of middle acquisition is eliminated.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of enhanced heat exchange condenser pipe network type heat exchanger, which is characterized in that the heat exchanger intersects connection using condenser pipe
Hollow network type channel design, the condenser pipe caliber be less than 3mm.
2. enhanced heat exchange condenser pipe network type heat exchanger as described in claim 1, which is characterized in that the condenser pipe is one-dimensional
Surface light pipe.
3. enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 2, which is characterized in that the condensation pipeline is horizontal
Section is round or rectangle.
4. enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 3, which is characterized in that the heat exchanger is bent
Curling.
5. a kind of preparation method of the enhanced heat exchange condenser pipe network type heat exchanger as described in claim 1-4 is any, feature
It is, the described method comprises the following steps:
Step 1 establishes network type channel solid model using software, and prints network type channel solid model；
Step 2, the tube wall in the resulting network type channel solid model surface attachment material of step 1, as condensation managed network；
Step 3 eliminates the resulting network type channel solid model of step 1, leaves the pipe of the condensation managed network formed in step 2
Wall constitutes the condenser pipe network type heat exchanger with hollow network type channel design.
6. the preparation method of enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 5, which is characterized in that the step
Network type channel solid model in rapid 1 is obtained using method for printing screen.
7. the preparation method of enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 5, which is characterized in that the step
Network type channel solid model in rapid 1 is obtained using 3D printing method.
8. the preparation method of enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 5, which is characterized in that the step
The tube wall of the condensation managed network is prepared in rapid 2 using electroplating forming method.
9. the preparation method of enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 5, which is characterized in that the step
The tube wall of the condensation managed network is prepared in rapid 2 using film blowing.
10. the preparation method of enhanced heat exchange condenser pipe network type heat exchanger as claimed in claim 5, which is characterized in that described
Network type channel solid model is eliminated by the method for sintering or chemolysis in step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427245.7A CN109520351A (en) | 2018-11-27 | 2018-11-27 | A kind of enhanced heat exchange condenser pipe network type heat exchanger and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811427245.7A CN109520351A (en) | 2018-11-27 | 2018-11-27 | A kind of enhanced heat exchange condenser pipe network type heat exchanger and preparation method thereof |
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| CN109520351A true CN109520351A (en) | 2019-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425602A (en) * | 2019-07-31 | 2019-11-08 | 安徽冠东科技有限公司 | A kind of multi-drop residual heat recovery type pot and stove |
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| CN106710416A (en) * | 2015-07-30 | 2017-05-24 | 上海微创医疗器械（集团）有限公司 | Vessel model, making method thereof, and device for making vessel model |
| JP6166860B2 (en) * | 2012-05-16 | 2017-07-19 | 小林 博 | Method for producing graphene, method for producing graphene joined body obtained by joining the graphene, and method for producing substrate or part using the graphene or the graphene joined body |
| CN206919723U (en) * | 2017-05-25 | 2018-01-23 | 绵阳市金桥源科技有限公司 | A kind of capillary heat exchange grid for military equipment infrared stealth camouflage |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6166860B2 (en) * | 2012-05-16 | 2017-07-19 | 小林 博 | Method for producing graphene, method for producing graphene joined body obtained by joining the graphene, and method for producing substrate or part using the graphene or the graphene joined body |
| CN104116578A (en) * | 2014-07-18 | 2014-10-29 | 西安交通大学 | Method for forming artificial vascular stent through 4D printing |
| CN106710416A (en) * | 2015-07-30 | 2017-05-24 | 上海微创医疗器械（集团）有限公司 | Vessel model, making method thereof, and device for making vessel model |
| CN206919723U (en) * | 2017-05-25 | 2018-01-23 | 绵阳市金桥源科技有限公司 | A kind of capillary heat exchange grid for military equipment infrared stealth camouflage |
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| CN110425602A (en) * | 2019-07-31 | 2019-11-08 | 安徽冠东科技有限公司 | A kind of multi-drop residual heat recovery type pot and stove |
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Application publication date: 20190326 |
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