CN109813158A - The plate beam processing method of plate-fin heat exchanger - Google Patents
The plate beam processing method of plate-fin heat exchanger Download PDFInfo
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- CN109813158A CN109813158A CN201910214331.8A CN201910214331A CN109813158A CN 109813158 A CN109813158 A CN 109813158A CN 201910214331 A CN201910214331 A CN 201910214331A CN 109813158 A CN109813158 A CN 109813158A
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Abstract
The present invention provides a kind of plate beam processing method of plate-fin heat exchanger, belongs to heat exchange equipment technology, comprising the following steps: coating coats solder resist in the non-solder area of fin plate top and bottom；Stacking, fin plate and partition are cascading, partition is made to be covered on the top and bottom of fin plate；Assembly after stacking is attached by Diffusion Welding by the way of Diffusion Welding；It stretches, the upper and lower surface of the assembly connected by Diffusion Welding mode is applied into pulling force respectively, fin plate is made to be drawn into fin；The plate beam processing method of plate-fin heat exchanger of the invention can guarantee the pressure needed in Diffusion Welding, increase the fastness of Diffusion Welding.
Description
Technical field
The present invention relates to heat exchange equipment technologies, and in particular to a kind of plate beam processing method of plate-fin heat exchanger.
Background technique
Plate-fin heat exchanger is usually made of partition, fin, strip of paper used for sealing, flow deflector.Adjacent two partition room place fin,
Flow deflector and strip of paper used for sealing form an interlayer, referred to as channel, and such interlayer is stacked according to the different modes of fluid, soldering
Integral just to form plate beam, plate beam is the core of plate-fin heat exchanger, is equipped with necessary end socket, adapter tube, support etc. and just forms
Plate-fin heat exchanger.
There are several types of the bondings of: the non-solder, salt bath brazing for having solvent, solvent-free for the manufacturing process of plate-fin heat exchanger
Vacuum brazing and gas protecting soldering.Conventional plate-fin heat exchanger is processed by the way of soldering, and soldering is to use
Metal material more low-melting than base material makees solder, and weldment (base material) and solder heat are arrived and are higher than brazing filler metal fusing point, but lower than base material
The temperature of fusing point, using liquid solder soak base material, fill play movement, and with the counterdiffusion of base material phase and realize and connect weldment
Method.
However, causing the intensity, heat resistance, corrosion resistance of brazed seam all lower than base metals since there are solders, soldering adds
The plate-fin heat exchanger of work, pressure-bearing, heatproof, corrosion resistance, thermal contact resistance can all have an impact.In process of production, due to plate
The tube sheet of fin heat exchanger washed away by moisture, is cavitated and the corrosion of microchemistry medium, is often leaked, is led at panel weld
Water and chemical materials is caused to mix, production technology temperature is difficult to control, and is caused to generate other products, is seriously affected product matter
Amount reduces product hierarchy.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming plate-fin heat exchanger in the prior art due to using pricker
Weldering welding, the defect for causing its pressure-bearing, heatproof, corrosion resistance poor, to provide a kind of plate that can improve drawbacks described above
The plate beam processing method of fin heat exchanger.
In order to solve the above technical problems, the plate beam processing method of plate-fin heat exchanger provided by the invention, including following step
It is rapid:
Coating, coats solder resist in the non-solder area of fin plate top and bottom；
Stacking, fin plate and partition are cascading, partition is made to be covered on the top and bottom of fin plate；
Assembly after stacking is attached by Diffusion Welding by the way of Diffusion Welding；
It stretches, the upper and lower surface of the assembly connected by Diffusion Welding mode is applied into pulling force respectively, draws fin plate
It is stretched into fin.
Preferably, further comprising the steps of:
Install strip of paper used for sealing additional, it is parallel with the channel that fin and partition are formed in the two side ends of fin, strip of paper used for sealing is installed additional, to keep wing
The bending shape of piece.
Preferably, in the coating step, the non-solder area of solder resist coating is rectangular area, the non-solder
Area has parallel and is uniformly arranged a plurality of in the top and bottom of fin plate.
Preferably, in the Stacking steps, fin plate and partition, which are cascading, multilayer.
Preferably, the adjacent fin plate is formed by channel direction and is mutually perpendicular to.
Preferably, the fin plate is formed by channel towards identical.
Preferably, in the Stacking steps, further includes: thickness is greater than the side plate of partition, stacking by stacking side plate
In the bottom surface for the top surface and the fin plate positioned at bottom end for being located at the fin plate on top.
Preferably, in the Stacking steps, further includes: stacking conduit plate, by the bottom plate of conduit plate be layered in
On the top surface and/or bottom surface of few a piece of fin plate.
Preferably, in the step of stacking conduit plate, the bottom plate of the conduit plate is layered in fin first
On the top surface of plate, then partition is layered on the conduit top surface of the conduit plate, finally again by the bottom surface layer of another fin plate
It is stacked on partition.
Preferably, the solder resist includes: boron nitride coating.
Technical solution of the present invention has the advantages that
1. the plate beam processing method of plate-fin heat exchanger provided by the invention, carries out component by the way of Diffusion Welding
Connection, Diffusion Welding is to fit closely weldment, and a period of time is kept under certain temperature and pressure, makes the original between contact surface
Son mutually diffuses to form the welding method of connection.Before Diffusion Welding, first on fin plate do not need be welded to connect
It is applied in non-solder area and is covered with solder resist, when guaranteeing Diffusion Welding, the connection of this non-solder Qu Buyu partition, and can be stretched
When timely separated with partition, so that fin plate is shaped to fin, the Diffusion Welding carried out using this mode can spread
Guarantee the pressure needed when welding, increases the fastness of Diffusion Welding.Since solder is not present in Diffusion Welding, weld strength is greater than
Equal to strength of parent, therefore, under identical structure, pressure-bearing, heatproof, the corrosion resistance of diffusion welding (DW) plate-fin heat exchanger are higher than brazing sheet
Fin heat exchanger, and thermal contact resistance is less than soldering plate-fin heat exchanger.
2. the plate beam processing method of plate-fin heat exchanger provided by the invention, the effect for installing strip of paper used for sealing additional is to keep fin
The leakproofness of two side ends and the bending shape for keeping fin, wherein the connection type of strip of paper used for sealing can use diffusion welding (DW) or use
Other normal welding modes carry out.
3. the plate beam processing method of plate-fin heat exchanger provided by the invention, the shape in non-solder area is square on fin plate
Shape, and non-solder area be it is parallel and be uniformly arranged it is a plurality of, after through Diffusion Welding, when being stretched, non-solder area energy
It is enough to be deformed by stretching, to generate bending, it is shaped to the fin of flat shape.
4. the plate beam processing method of plate-fin heat exchanger provided by the invention, fin plate is cascading with partition to be had
Multilayer can once be completed multi-disc fin plate being processed into fin, and increase the radiating efficiency of heat exchanger after molding.
5. the plate beam processing method of plate-fin heat exchanger provided by the invention, fin plate is formed by channel can be towards phase
Together, it is mutually perpendicular between the channel that can also be formed with adjacent fins plate, set-up mode is more versatile and flexible, can be according to practical need
It is configured.
Further include stacking side plate 6. the plate beam processing method of plate-fin heat exchanger provided by the invention, by thickness be greater than every
The side plate of plate is layered in the top surface of the fin plate positioned at top and the bottom surface of the fin plate positioned at bottom end, to increase heat exchanger
The thickness of top and bottom plate, when making Diffusion Welding, the compression of heat exchanger is more uniform, and the assembly after Diffusion Welding is more
Add firm.
7. the plate beam processing method of plate-fin heat exchanger provided by the invention, further includes: stacking conduit plate, the bottom of conduit plate
Plate can be layered in the top surface of fin, can be layered in the bottom surface of fin, can also be layered in the top and bottom of fin simultaneously,
A combination thereof form have it is a variety of, therefore have the advantages that be arranged it is flexible.
8. the plate beam processing method of plate-fin heat exchanger provided by the invention first will in the step of conduit plate is laminated
The bottom plate of conduit plate is layered on the top surface of fin plate, is then layered in partition on the conduit top surface of the conduit plate, finally
The bottom surface of another fin plate is layered on partition again, is so set gradually, production procedure can be made simply single, is convenient for product
Processing.
9. the plate beam processing method of plate-fin heat exchanger provided by the invention, the solder resist of selection includes: boron nitride coating,
Boron nitride coating is inert inorganic high-temperature lubricating material, does not bond, not infiltrating molten metal liquid, has under high temperature environment fabulous
Lubricity and oxidation resistance, even if still protecting its distinctive lubricity, non-sticky property, anti-sticking and anti-gold at extreme temperatures
Belong to or graphitic corrosion aoxidizes, is accordingly used in solder resist, good anti-stick protecting effect can be played.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of plate beam schematic perspective view of plate-fin heat exchanger.
Fig. 2 is the top view of fin plate.
Fig. 3 is the plate beam schematic perspective view of second of plate-fin heat exchanger.
Fig. 4 is the top view of conduit plate.
Fig. 5 be Diffusion Welding after to plate Shu Jinhang stretch schematic diagram.
Fig. 6 is the schematic diagram that fin plate is transformed into fin process in drawing process.
Fig. 7 is the schematic perspective view after the plate bundle drawing in Fig. 5.
Fig. 8 is that the plate beam in Fig. 7 installs the schematic perspective view after strip of paper used for sealing additional.
Fig. 9 is the plate beam schematic perspective view of the third plate-fin heat exchanger.
Figure 10 is the pressure process figure of Diffusion Welding.
Figure 11 is the temperature process figure of Diffusion Welding.
Description of symbols:
1, fin；2, partition；3, strip of paper used for sealing；4, side plate；5, conduit plate；6, bottom plate；7, conduit；8, non-solder area；9, fin
Plate.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of plate beam processing methods of plate-fin heat exchanger, wherein the plate beam of plate-fin heat exchanger, such as
Shown in Fig. 1, comprising: fin 1, partition 2, side plate 4 and strip of paper used for sealing 3.The fin 1 can be adopted using materials such as stainless steel, titanium, copper
The modes such as add to process with etching or machine, for the plain fin 1 with several bendings.
The partition 2 is slab construction, for being covered on the top surface and/or bottom surface of the fin 1.
The side plate 4 is the plate that thickness is greater than partition 2, for being covered on the top surface of fin 1 and/or the bottom surface of fin 1.
The plate beam of above-mentioned plate-fin heat exchanger is processed by way of Diffusion Welding
Specific steps include:
Step 1: coating, boron nitride coating is coated in the non-solder area 8 of 9 top and bottom of fin plate as solder resist,
Wherein, the non-solder area 8 is as shown in Fig. 2, be rectangular area, in the top and bottom of fin plate 9 with parallel and uniform
What is be arranged is a plurality of.
Step 2: stacking, fin plate 9 and partition 2 are cascading multilayer, partition 2 is made to be covered on the top of fin plate 9
Face and bottom surface, and so that the adjacent fin plate 9 is formed by channel direction and be mutually perpendicular to.
In addition, as a kind of alternative embodiments, the fin plate 9 is formed by channel can also be towards identical.
Finally, thickness to be greater than to the side plate 4 of partition 2, be layered in the top surface of the fin plate 9 positioned at top and is located at bottom end
Fin plate 9 bottom surface.
Step 3: Diffusion Welding, is diffused connection for the assembly after stacking by the way of Diffusion Welding.
Step 4: stretching, as shown in Figure 5, Figure 6, by the upper and lower surface of the assembly connected by Diffusion Welding mode point
Not Shi Jia pulling force, so that fin plate 9 is drawn into fin 1.
Step 5: install strip of paper used for sealing 3 additional, and it is parallel with the channel that fin 1 and partition 2 are formed in the two side ends of fin 1, install envelope additional
Item 3, to keep the bending shape of fin 1.
The temperature of Diffusion Welding is 0.5~0.8 times of material melting point, and welding pressure is according to plate beam material and structure come really
It is fixed.Specific pressure and temperature parameter, can refer to as shown in Figure 10, Figure 11.
Embodiment 2
The present embodiment provides a kind of plate beam processing methods of plate-fin heat exchanger, wherein the plate beam of plate-fin heat exchanger, such as
Shown in Fig. 3, comprising: fin 1, partition 2, strip of paper used for sealing 3, side plate 4 and conduit plate 5.The fin 1 and conduit plate 5 can be using etchings
Or machine such as adds to process at the modes, mainly using materials such as stainless steel, titanium, copper, can be of the same race or dissimilar material.
The fin 1, partition 2, the structure of side plate 4 and strip of paper used for sealing 3 are same as Example 1, the difference is that: the conduit
Plate 5 with partition 2 and fin 1 for being cascading.As shown in figure 4, conduit plate 5 specifically includes: bottom plate 6 and conduit 7, it is described
Bottom plate 6 is slab construction, positioned at the bottom of conduit plate 5；The conduit 7 is at least one circulation passage with bending, layer
The folded top that the bottom plate 6 is set.When setting, the bottom plate 6 of conduit plate 5 is layered on the top surface of fin 1, and partition 2 is layered in
On 7 top surface of conduit of conduit plate 5, the bottom surface of another fin 1 is layered on partition 2.
The plate beam of above-mentioned plate-fin heat exchanger is processed by way of Diffusion Welding
The following steps are included:
Step 1: coating, boron nitride coating is coated in the non-solder area 8 of 9 top and bottom of fin plate as solder resist,
Wherein, the non-solder area 8 is as shown in Fig. 2, be rectangular area, in the top and bottom of fin plate 9 with parallel and uniform
What is be arranged is a plurality of.
Step 2: stacking, fin plate 9 and partition 2 are cascading multilayer, partition 2 is made to be covered on the top of fin plate 9
Face and bottom surface, and so that the adjacent fin plate 9 is formed by channel direction and be mutually perpendicular to.
In addition, as a kind of alternative embodiments, the fin plate 9 is formed by channel can also be towards identical.
Finally, thickness to be greater than to the side plate 4 of partition 2, be layered in the top surface of the fin plate 9 positioned at top and is located at bottom end
Fin plate 9 bottom surface.
During fin plate 9 and partition 2 are laminated, the bottom plate 6 of conduit plate 5 is layered in at least a piece of fin plate
On 9 top surface and/or bottom surface.Specifically, the bottom plate 6 of the conduit plate 5 can be layered on the top surface of fin plate 9 first,
Then partition 2 is layered on 7 top surface of conduit of the conduit plate 5, the bottom surface of another fin plate 9 is finally layered in partition again
On 2.
Step 3: Diffusion Welding, is diffused connection for the assembly after stacking by the way of Diffusion Welding；
Step 4: stretching, as shown in Figure 5, Figure 6, by the upper and lower surface of the assembly connected by Diffusion Welding mode point
Not Shi Jia pulling force, so that fin plate 9 is drawn into fin 1.
Step 5: installing strip of paper used for sealing 3 additional, as shown in Figure 7, Figure 8, in the two side ends of fin 1, formed with fin 1 and partition 2 logical
Road is parallel, strip of paper used for sealing 3 is installed additional, to keep the bending shape of fin 1.
The temperature of Diffusion Welding is 0.5~0.8 times of material melting point, and welding pressure is according to plate beam material and structure come really
It is fixed.Specific pressure and temperature parameter, can refer to as shown in Figure 10, Figure 11.
Embodiment 3
The present embodiment provides a kind of plate beam processing methods of plate-fin heat exchanger, wherein the plate beam of plate-fin heat exchanger, such as
Shown in Fig. 9, comprising: fin 1, partition 2, strip of paper used for sealing 3, side plate 4 and conduit plate 5.The fin 1 and conduit plate 5 can be using etchings
Or machine such as adds to process at the modes, mainly using materials such as stainless steel, titanium, copper, can be of the same race or dissimilar material.
The conduit plate 5, partition 2, the structure of side plate 4 and strip of paper used for sealing 3 are same as Example 2, the difference is that: the wing
Piece 1 is bilayer.
The plate beam processing method of above-mentioned plate-fin heat exchanger is substantially the same manner as Example 2.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. the plate beam processing method of plate-fin heat exchanger, which comprises the following steps:
Coating, coats solder resist in the non-solder area (8) of fin plate (9) top and bottom；
Stacking, fin plate (9) and partition (2) are cascading, partition (2) is made to be covered on the top surface and bottom of fin plate (9)
Face；
Assembly after stacking is attached by Diffusion Welding by the way of Diffusion Welding；
It stretches, the upper and lower surface of the assembly connected by Diffusion Welding mode is applied into pulling force respectively, stretch fin plate (9)
At fin (1).
2. the plate beam processing method of plate-fin heat exchanger according to claim 1, which is characterized in that further include following step
It is rapid:
It installs additional strip of paper used for sealing (3), the two side ends in fin (1), it is parallel with the channel that fin (1) and partition (2) are formed, install strip of paper used for sealing additional
(3), to keep the bending shape of fin (1).
3. the plate beam processing method of plate-fin heat exchanger according to claim 1 or 2, which is characterized in that the coating step
In rapid, the non-solder area (8) of solder resist coating is rectangular area, top and bottom of the non-solder area (8) in fin plate (9)
With parallel and be uniformly arranged a plurality of.
4. the plate beam processing method of plate-fin heat exchanger according to claim 3, which is characterized in that the Stacking steps
In, fin plate (9) and partition (2), which are cascading, multilayer.
5. the plate beam processing method of plate-fin heat exchanger according to claim 4, which is characterized in that the adjacent fin plate
(9) channel direction is formed by be mutually perpendicular to.
6. the plate beam processing method of plate-fin heat exchanger according to claim 4, which is characterized in that the fin plate (9)
Channel is formed by towards identical.
7. the plate beam processing method of the plate-fin heat exchanger according to any one of claim 4~6, which is characterized in that institute
It states in Stacking steps, further includes: thickness is greater than the side plate (4) of partition (2), is layered in the wing positioned at top by stacking side plate (4)
The bottom surface of the top surface of sheet (9) and the fin plate (9) positioned at bottom end.
8. the plate beam processing method of plate-fin heat exchanger according to claim 7, which is characterized in that the Stacking steps
In, further includes: the bottom plate (6) of conduit plate (5) is layered in the top surface of at least a piece of fin plate (9) by stacking conduit plate (5)
And/or on bottom surface.
9. the plate beam processing method of plate-fin heat exchanger according to claim 8, which is characterized in that the stacking conduit plate
(5) in the step of, the bottom plate (6) of the conduit plate (5) is layered on the top surface of fin plate (9) first, then by partition (2)
It is layered on conduit (7) top surface of the conduit plate (5), the bottom surface of another fin plate (9) is finally layered in partition (2) again
On.
10. the plate beam processing method of plate-fin heat exchanger described according to claim 1~any one of 9, which is characterized in that
The solder resist includes: boron nitride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214331.8A CN109813158A (en) | 2019-03-20 | 2019-03-20 | The plate beam processing method of plate-fin heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214331.8A CN109813158A (en) | 2019-03-20 | 2019-03-20 | The plate beam processing method of plate-fin heat exchanger |
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| CN109813158A true CN109813158A (en) | 2019-05-28 |
Family
ID=66609700
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| CN201910214331.8A Pending CN109813158A (en) | 2019-03-20 | 2019-03-20 | The plate beam processing method of plate-fin heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026295A (en) * | 2019-06-03 | 2020-12-04 | 格朗吉斯铝业（上海）有限公司 | Aluminum alloy composite material, honeycomb core and honeycomb plate comprising same and preparation method thereof |
| CN114888423A (en) * | 2022-07-12 | 2022-08-12 | 杭州沈氏节能科技股份有限公司 | Manufacturing method of plate-fin heat exchanger based on diffusion welding |
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| CN114888423A (en) * | 2022-07-12 | 2022-08-12 | 杭州沈氏节能科技股份有限公司 | Manufacturing method of plate-fin heat exchanger based on diffusion welding |
| CN114888423B (en) * | 2022-07-12 | 2022-10-21 | 杭州沈氏节能科技股份有限公司 | Manufacturing method of plate-fin heat exchanger based on diffusion welding |
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Application publication date: 20190528 |
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