CN209263760U - Heat exchanger and refrigerating circulatory device - Google Patents
Heat exchanger and refrigerating circulatory device Download PDFInfo
- Publication number
- CN209263760U CN209263760U CN201790000542.6U CN201790000542U CN209263760U CN 209263760 U CN209263760 U CN 209263760U CN 201790000542 U CN201790000542 U CN 201790000542U CN 209263760 U CN209263760 U CN 209263760U
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- China
- Prior art keywords
- heat
- slot
- transfer pipe
- heat exchanger
- pipe
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Abstract
The utility model provides heat exchanger and refrigerating circulatory device, the heat exchanger have: heat-transfer pipe, for working fluid；And multiple fins, they are arranged in parallel for heat-transfer pipe insert and interval, and heat-transfer pipe includes the first slot, is formed in internal perisporium and keeps thickness of pipe wall thinner than internal perisporium；Second slot is formed in internal perisporium and keeps thickness of pipe wall thinner than internal perisporium, and shape is different from the first slot.
Description
Technical field
The utility model relates to the internal perisporiums in heat-transfer pipe to form slotted heat exchanger and refrigerating circulatory device.
Background technique
In the heat source side heat exchanger used in air-conditioning device, in the internal perisporium of the heat-transfer pipe for working fluid,
It is formed with the slot formed when manufacturing heat-transfer pipe.The heat-transfer pipe uses expander pipe cleaning in the manufacturing process of heat source side heat exchanger
Expander is carried out, which has the diameter bigger than being formed with the internal diameter of the heat-transfer pipe of slot in internal perisporium.As a result, in heat-transfer pipe
Multiple fins of interval arrangement are fixed in the heat-transfer pipe after expander.
The manufacturing method of previous known following heat exchanger, it may be assumed that expander pipe cleaning is inserted into heat-transfer pipe, and throughout heat-transfer pipe
Length direction make heat-transfer pipe outer diameter expander heat exchanger manufacturing method, the heat-transfer pipe internal perisporium have by spiral
Slot is held on the protrusion of two helicla flutes (for example, referring to patent document 1).
In the technology of patent document 1, it is formed in the outer peripheral surface of expander pipe cleaning extends as the crow flies along direction of insertion in advance
V shape slot.Moreover, when making expander pipe cleaning advance in heat-transfer pipe, a part of the protrusion of heat-transfer pipe by V shape slot and
Be formed as outstanding more raised to radially inner side than protrusion.
Thereby, it is possible to improve the heat transfer property (heat transference efficiency) of heat-transfer pipe.
Patent document 1: Japanese Unexamined Patent Publication 2009-058186 bulletin
In the technology of patent document 1, the workflow to circulate along slot is formed in the heat-transfer pipe of heat source side heat exchanger
The liquid film of body.At this point, the liquid film of working fluid carries out convective heat transfer and is substantially carried out the evaporation from liquid film surface.Therefore for
It is less to the convective heat transfer of the liquid film of working fluid from heat-transfer pipe for protrusion, the heat transference efficiency of the protrusion newly formed
Improvement effect is limited.
In addition, the working fluid to circulate in heat-transfer pipe becomes laminar flow in low quality velocity band.Even if working in this way
Fluid becomes laminar flow, is also limited inside heat-transfer pipe along the liquid film of the working fluid of slot circulation, and is difficult to working fluid
Liquid film carries out convective heat transfer, to reduce heat transference efficiency.
Utility model content
The utility model is made in order to solve the above problems, and it is an object of the present invention to provide one kind can further increase biography
The heat exchanger and refrigerating circulatory device of the heat transference efficiency of heat pipe.
The heat exchanger of the utility model has: heat-transfer pipe, for working fluid；And multiple fins, for institute
It states heat-transfer pipe insert and interval and is arranged in parallel, the heat-transfer pipe includes the first slot, is formed in internal perisporium and makes pipe
Internal perisporium described in wall ratio is thin；And second slot, it is formed in the internal perisporium and keeps thickness of pipe wall thinner than the internal perisporium, and shape
Shape is different from first slot.
Preferably, first slot is formed when manufacturing the heat-transfer pipe, and second slot is in insert to the multiple wing
It is formed when the heat-transfer pipe expander of piece.
Preferably, the groove depth of first slot is consistent with the groove depth of second slot.
Preferably, second slot is formed across relative to first slot.
Preferably, second slot is concurrently formed relative to first slot.
Preferably, second slot is formed multiple, and multiple second slots are shape same to each other.
Preferably, second slot is formed multiple, and multiple second slots are mutually different shape.
Preferably, second flute profile becomes parallel with the length direction of the heat-transfer pipe linear.
Preferably, by that will have the expander pipe cleaning of the protrusion parallel with the length direction of the heat-transfer pipe along the heat transfer
The length direction of pipe is inserted into as the crow flies, to form second slot.
Preferably, second slot is formed as helical form relative to the length direction of the heat-transfer pipe.
Preferably, pass through the expander pipe cleaning for making that there is spiral helicine protrusion relative to the length direction of the heat-transfer pipe, phase
The length direction of the heat-transfer pipe is inserted into while rotating along the spiral helicine protrusion, to form described second
Slot.
Preferably, by making the expander pipe cleaning on the length direction of the heat-transfer pipe with protrusion along the heat-transfer pipe
Length direction is inserted into form second slot as the crow flies, or by making the length of the expander pipe cleaning relative to the heat-transfer pipe
Direction is inserted into form second slot while rotating, and the length of the protrusion is than second slot and slot length direction
The width of orthogonal section is short.
Preferably, the channel opening portion width of second slot is equal length with groove bottom width.
Preferably, the channel opening portion width of second slot is different length from groove bottom width.
Preferably, the trench bottom of second slot is curved surface.
Preferably, described its trench bottom of second slot does not have width and the section orthogonal with slot length direction is V shape.
Preferably, second slot is formed as the chevron shape parallel with slot length direction in trench bottom.
Preferably, the working fluid is HFO refrigerant, HFC refrigerant, natural refrigerant or their hybrid refrigeration
Agent.
The refrigerating circulatory device of the utility model has above-mentioned heat exchanger.
Heat exchanger and refrigerating circulatory device according to the present utility model, heat-transfer pipe include the first slot, are formed in interior
Peripheral wall simultaneously keeps thickness of pipe wall thinner than internal perisporium；Second slot is formed in internal perisporium and keeps thickness of pipe wall thinner than internal perisporium, and shape and the
One slot is different.The relatively thin region of the thickness of pipe wall of heat-transfer pipe increases as a result, can expand and be easy heat transfer because of relatively thin thickness of pipe wall
Heat transfer area.In addition, complicating the concave-convex of the internal perisporium for being formed in heat-transfer pipe, the workflow to circulate in heat-transfer pipe can be promoted
The turbulent flow of body.Therefore the heat transference efficiency of heat-transfer pipe can be further increased.
Detailed description of the invention
Fig. 1 is the perspective view for indicating the heat exchanger of the embodiments of the present invention 1.
Fig. 2 is the explanatory diagram for indicating the vertical section of heat exchanger of the embodiments of the present invention 1.
Fig. 3 (a)~Fig. 3 (c) is the figure for concentrating the internal structure 1 for the heat-transfer pipe for indicating the embodiments of the present invention 1,
Fig. 3 (a) is the figure for indicating the inner surface expansion of heat-transfer pipe, and Fig. 3 (b) is the solid for indicating the summary of inner surface of heat-transfer pipe
Figure, Fig. 3 (c) is the explanatory diagram for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Fig. 4 (a)~Fig. 4 (c) is the figure for concentrating the internal structure 2 for the heat-transfer pipe for indicating the embodiments of the present invention 1,
Fig. 4 (a) is the figure for indicating the inner surface expansion of heat-transfer pipe, and Fig. 4 (b) is the solid for indicating the summary of inner surface of heat-transfer pipe
Figure, Fig. 4 (c) is the explanatory diagram for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Fig. 5 (a)~Fig. 5 (c) is the figure for concentrating the internal structure 3 for the heat-transfer pipe for indicating the embodiments of the present invention 1,
Fig. 5 (a) is the figure for indicating the inner surface expansion of heat-transfer pipe, and Fig. 5 (b) is the solid for indicating the summary of inner surface of heat-transfer pipe
Figure, Fig. 5 (c) is the explanatory diagram for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Fig. 6 (a)~Fig. 6 (c) is the figure for concentrating the internal structure 4 for the heat-transfer pipe for indicating the embodiments of the present invention 1,
Fig. 6 (a) is the figure for indicating the inner surface expansion of heat-transfer pipe, and Fig. 6 (b) is the solid for indicating the summary of inner surface of heat-transfer pipe
Figure, Fig. 6 (c) is the explanatory diagram for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Fig. 7 (a)~Fig. 7 (e) is the figure for concentrating the section shape for the second slot for indicating the embodiments of the present invention 1,
Fig. 7 (a) is to indicate that section is the figure of the section shape of the second slot of quadrangle, and Fig. 7 (b) is to indicate that section is the of trapezoidal shape
The figure of the section shape of two slots, Fig. 7 (c) are to indicate that section is the figure of the section shape of the second slot of U-shaped, and Fig. 7 (d) is to indicate
Section is the figure of the section shape of the second slot of V shape, and Fig. 7 (e) is to indicate that section is the section shape of the second slot of W shape
Figure.
Fig. 8 is the perspective view for indicating the other examples of heat exchanger of the embodiments of the present invention 1.
Fig. 9 (a)~Fig. 9 (c) is the structure of heat-transfer pipe when concentrating the manufacture for indicating the embodiments of the present invention 1
Figure, Fig. 9 (a) are the figures for indicating the expansion of the inner surface of heat-transfer pipe, Fig. 9 (b) be indicate the inner surface of heat-transfer pipe summary it is vertical
Body figure, Fig. 9 (c) are the explanatory diagrams for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Expander when Figure 10 (a), Figure 10 (b) are the expanders for concentrating the heat-transfer pipe for indicating the embodiments of the present invention 1
The figure of process, Figure 10 (a) are the figures for indicating the expansion process S1 for being inserted into expander pipe cleaning as the crow flies along the length direction of heat-transfer pipe,
Figure 10 (b) be the length direction that indicates to make expander pipe cleaning relative to heat-transfer pipe on one side rotate, while the expansion process S2 that is inserted into
Figure.
Figure 11 (a1)~Figure 11 (d) is the figure for concentrating the shape for the expander pipe cleaning for indicating the embodiments of the present invention 1,
Figure 11 (a1) be indicate with the protrusion parallel with the length direction of heat-transfer pipe expander pipe cleaning side view, Figure 11 (a2) be from
The main view of the expander pipe cleaning of Figure 11 (a1) is observed in front end, and Figure 11 (b) is to indicate that the length direction relative to heat-transfer pipe has spiral shell
The side view of the expander pipe cleaning of the protrusion of shape is revolved, Figure 11 (c) is to indicate have length than second on the length direction of heat-transfer pipe
The side view of the expander pipe cleaning of the short protrusion of the width of the section orthogonal with slot length direction of slot, Figure 11 (d) are to indicate passing
Spirally with convex shorter than the width of the section orthogonal with slot length direction of the second slot of length on the length direction of heat pipe
The side view of the expander pipe cleaning in portion.
Figure 12 (a), Figure 12 (b) are the working fluids concentrated in the heat-transfer pipe for indicating the embodiments of the present invention 1
The figure of state, Figure 12 (a) are the figures for the situation for indicating that the groove depth of the first slot is identical as the groove depth of the second slot, and Figure 12 (b) is
Indicate the figure of the groove depth of the first slot situation different from the groove depth of the second slot.
Figure 13 is the schematic structural diagram for indicating the air-conditioning device of the embodiments of the present invention 2.
Specific embodiment
Hereinafter, being illustrated based on attached drawing to the embodiments of the present invention.
In addition, being labelled with the part of same reference numerals in the various figures is part identically or comparably, this is in specification
Full text in be common.
In addition, the form of constituent element represented by specification full text only illustrates, it is not limited to these records.
Embodiment 1.
[heat exchanger]
Fig. 1 is the perspective view for indicating the heat exchanger 1 of the embodiments of the present invention 1.Fig. 2 is to indicate the utility model
Embodiment 1 heat exchanger 1 vertical section explanatory diagram.
Fig. 1, heat exchanger shown in Fig. 21, such as the heat source side that has of outdoor unit in aftermentioned air-conditioning device 100
It is used in heat exchanger 103.
As shown in Figure 1 and Figure 2, heat exchanger 1 has: multiple heat-transfer pipes 2 and the multiple heat transfers of confession for working fluid
The insert of pipe 2 and interval and multiple fins 3 for being arranged in parallel.
The through hole 4 around with fin casing 4a is formed in multiple fins 3.The straight insertion of heat-transfer pipe 2 is passed through
Through-hole 4, and expander is carried out to heat-transfer pipe 2.Thus multiple fins 3 are fixed on heat-transfer pipe 2 at spaced intervals.It is Fig. 1, shown in Fig. 2
Heat exchanger 1 is the state.
[internal structure 1 of heat-transfer pipe]
Fig. 3 (a)~Fig. 3 (c) is the internal structure 1 for concentrating the heat-transfer pipe 2 for indicating the embodiments of the present invention 1
Figure, Fig. 3 (a) are the figures for indicating the inner surface expansion of heat-transfer pipe 2, and Fig. 3 (b) is the summary for indicating the inner surface of heat-transfer pipe 2
Perspective view, Fig. 3 (c) are the explanatory diagrams for the section for indicating that the inner surface of heat-transfer pipe 2 is orthogonal with the length direction of heat-transfer pipe.
The inner surface of heat-transfer pipe 2 shown in Fig. 3 (a)~Fig. 3 (c) has and is formed in internal perisporium 5 and makes thickness of pipe wall ratio
Thin multiple first slots 6 of internal perisporium 5.
In addition, the inner surface of heat-transfer pipe 2 is meant that the face including the bumps of the inside of heat-transfer pipe 2 is whole according to text
Body.In addition, the internal perisporium 5 of heat-transfer pipe 2 refers to the datum level of cylindric 2 inner circumferentials having as internal diameter of heat-transfer pipe.
Multiple first slots 6 are formed as helical form relative to the length direction of heat-transfer pipe 2.Multiple first slots 6 are with equidistant shape
At.Multiple first slots 6 are formed when manufacturing heat-transfer pipe 2.
In addition, multiple first slots 6 are not necessarily limited to helical form shown in Fig. 3 (a)~Fig. 3 (c).As long as multiple first slots 6
Range relative to the normal surface orthogonal with the length direction of heat-transfer pipe 2 in 0 ° of 90 ° of 1 < of < θ is formed.In addition, multiple
One slot 6 can also be formed as the crow flies along the length direction of heat-transfer pipe 2.
There are multiple second slots 7 in the inner surface of heat-transfer pipe 2, the second slot 7 is formed in internal perisporium 5 and thickness of pipe wall is made to compare inner circumferential
Wall 5 is thin, and shape is different from multiple first slots 6.
Multiple second slots 7 are in the inner surface portion different from multiple first slots 6, in a manner of intersecting with multiple first slots 6
It is formed.Multiple second slots 7 are formed as parallel with the length direction of heat-transfer pipe 2 linear.Multiple second slots 7 are with equidistant shape
At.Multiple second slots 7 are formed when being inserted through the expander of heat-transfer pipe 2 of multiple fins 3.Multiple second slots 7 are same to each other
Shape.
In addition, the groove depth of the first slot 6 and the groove depth of the second slot 7 can be consistent.In addition, the groove depth of the second slot 7
It can be the depth different from the groove depth of the first slot 6.
[internal structure 2 of heat-transfer pipe]
Fig. 4 (a)~Fig. 4 (c) is the internal structure 2 for concentrating the heat-transfer pipe 2 for indicating the embodiments of the present invention 1
Figure, Fig. 4 (a) are the figures for indicating the inner surface expansion of heat-transfer pipe 2, and Fig. 4 (b) is the summary for indicating the inner surface of heat-transfer pipe 2
Perspective view, Fig. 4 (c) are the explanatory diagrams for the section for indicating that the inner surface of heat-transfer pipe is orthogonal with the length direction of heat-transfer pipe.
Here, being said to different from the internal structure 1 of heat-transfer pipe 2 characteristics in the internal structure 2 of heat-transfer pipe 2
It is bright, and omit identical structure.
As shown in Fig. 4 (a)~Fig. 4 (c), multiple second slot 7a, 7b are mutually different shapes.In this way, heat-transfer pipe 2 can also
There are a variety of second slot 7a, 7b the shape of more than two second slot 7a, 7b to be combined.
[internal structure 3 of heat-transfer pipe]
Fig. 5 (a)~Fig. 5 (c) is the internal structure 3 for concentrating the heat-transfer pipe 2 for indicating the embodiments of the present invention 1
Figure, Fig. 5 (a) are the figures for indicating the inner surface expansion of heat-transfer pipe 2, and Fig. 5 (b) is the summary for indicating the inner surface of heat-transfer pipe 2
Perspective view, Fig. 5 (c) are the explanatory diagrams for the section for indicating that the inner surface of heat-transfer pipe 2 is orthogonal with the length direction of heat-transfer pipe 2.
Here, being carried out to different from the internal structure 1,2 of heat-transfer pipe 2 characteristics in the internal structure 3 of heat-transfer pipe 2
Illustrate, and omits identical structure.
As shown in Fig. 5 (a)~Fig. 5 (c), multiple second slot 7c are formed as helical form relative to the length direction of heat-transfer pipe 2.
Spiral helicine multiple second slot 7c intersect relative to spiral helicine multiple first slots 6.Spiral helicine multiple second slot 7c are preferably
Range relative to the normal surface orthogonal with the length direction of heat-transfer pipe 2 in 90 ° of 180 ° of 2 < of < θ is formed.As a result, multiple second
Slot 7c is also capable of forming orthogonally to intersect relative to multiple first slots 6.
If having such second slot 7c, the working fluid meeting of the first slot 6 and the second slot 7c flowing in heat-transfer pipe 2
It tempestuously mixes, thus, it is possible to further increase the heat transference efficiency of heat-transfer pipe 2.
[internal structure 4 of heat-transfer pipe]
Fig. 6 (a)~Fig. 6 (c) is the internal structure 4 for concentrating the heat-transfer pipe 2 for indicating the embodiments of the present invention 1
Figure, Fig. 6 (a) are the figures for indicating the inner surface expansion of heat-transfer pipe 2, and Fig. 6 (b) is the summary for indicating the inner surface of heat-transfer pipe 2
Perspective view, Fig. 6 (c) are the explanatory diagrams for the section for indicating that the inner surface of heat-transfer pipe 2 is orthogonal with the length direction of heat-transfer pipe 2.
Here, to different from the internal structure 1~3 of heat-transfer pipe 2 characteristics in the internal structure 4 of heat-transfer pipe 2 into
Row explanation, and omit identical structure.
As shown in Fig. 6 (a)~Fig. 6 (c), multiple second slot 7d are relative to multiple settings parallel of first slot 6.That is, multiple
Two slot 7d are concurrently formed as helical form relative to multiple first slots 6, wherein above-mentioned multiple first slots 6 are relative to heat-transfer pipe 2
Length direction is formed as helical form.Multiple second slot 7d are relative to the normal surface orthogonal with the length direction of heat-transfer pipe 2 in 0 ° of < θ
The range of 1 90 ° of < is formed, and the angle, θ 1 of angle, θ 1 and multiple first slots 6 is consistent.Multiple second slot 7d and multiple first slots 6
Between interval cooperatively formed at equal intervals.
In addition, although not shown, but multiple second slots can also be relative to parallel with the length direction of heat-transfer pipe 2 linear
Multiple first slots 6 concurrently formed.In this case, multiple second flute profiles become parallel with the length direction of heat-transfer pipe 2
Linearly.
[section shape of the second slot]
Fig. 7 (a)~Fig. 7 (e) is the section shape for concentrating the second slot 7 for indicating the embodiments of the present invention 1
Figure, Fig. 7 (a) are to indicate that section is the figure of the section shape of the second slot 7 of quadrangle, and Fig. 7 (b) is to indicate that section is trapezoidal shape
The second slot 7 section shape figure, Fig. 7 (c) be indicate section be U-shaped the second slot 7 section shape figure, Fig. 7
It (d) is to indicate that section is the figure of the section shape of the second slot 7 of V shape, Fig. 7 (e) is to indicate that section is the second slot 7 of W shape
Section shape figure.
In addition, being illustrated herein with the second slot 7 of the internal structure 1 of heat-transfer pipe 2 for representative.But it can also be by these
Shape is applied to other second slots 7a, 7b, 7c, 7d.
As shown in Fig. 7 (a), multiple second slots 7 can also make section shape orthogonal to the longitudinal direction be formed as section four
Side shape.In the section quadrangle of the second slot 7, channel opening portion width 8 and groove bottom width 9 are equal length.In the situation
Under, it is capable of increasing the region thin in 2 inner tube wall ratio internal perisporium 5 of heat-transfer pipe.In addition, the inner circumferential for being formed in heat-transfer pipe 2 can be made
The concave-convex of wall 5 complicates.
As shown in Fig. 7 (b), multiple second slots 7 can also make section shape orthogonal to the longitudinal direction be formed as section ladder
Shape shape.In the section trapezoidal shape of the second slot 7, channel opening portion width 8 is different length from groove bottom width 9.That is,
In Fig. 7 (b), the groove bottom width 9 of the second slot 7 is formed as the length longer than channel opening portion width 8.In this case,
The speed for the working fluid that the trench bottom 10 of two slots 7 flows rises, and can further increase the heat transference efficiency of heat-transfer pipe 2.
In addition, with Fig. 7 (b) on the contrary, section shape orthogonal to the longitudinal direction can also be formed as cuing open by multiple second slots 7
Face trapezoidal shape.In the section trapezoidal shape of the second slot 7, channel opening portion width 8 and groove bottom width 9 are different length.
That is, although not shown, but the groove bottom width 9 of the second slot 7 can also be formed as the length shorter than channel opening portion width 8.In the feelings
Under condition, when the working fluid that can be flowed in heat-transfer pipe 2 flows into the second slot 7, improves and imitated to the contact of the heat-transfer area of heat-transfer pipe 2
Rate, so as to further increase the heat transference efficiency of heat-transfer pipe 2.
As shown in Fig. 7 (c), multiple second slots 7 can also make section shape orthogonal to the longitudinal direction be formed as section U-shaped
Shape.In the section U-shaped of the second slot 7, trench bottom 10 is curved surface.That is, during the groove bottom width 9 of the second slot 7 is formed as more leaning on
The heart then thinner section arc-shaped of cell wall thickness.In this case, inhibit to damage the pressure of the working fluid flowed in the second slot 7
The rising of mistake.
As shown in Fig. 7 (d), multiple second slots 7 can also be formed as being formed as section shape orthogonal to the longitudinal direction
Section V shape.In the section V shape of the second slot 7, trench bottom 10 does not have width.In this case, it is flowed in heat-transfer pipe 2
Dynamic working fluid can be improved the contacting efficiency of the heat-transfer area to heat-transfer pipe 2 when flowing into the second slot 7, so as to further
Improve the heat transference efficiency of heat-transfer pipe 2.
As shown in Fig. 7 (e), multiple second slots 7 can also make section shape orthogonal to the longitudinal direction be formed as section W word
Shape.In the section W shape of the second slot 7, a chevron shape parallel with slot length direction is formed in trench bottom 10.In the feelings
Under condition, when the working fluid that can be flowed in heat-transfer pipe 2 is flowed into the second slot 7, connecing towards the heat-transfer area of heat-transfer pipe 2 is improved
Efficiency is touched, so as to further increase the heat transference efficiency of heat-transfer pipe 2.
In addition, multiple second slots 7 can also be formed with more than two chevrons parallel with slot length direction in trench bottom 10
Shape.Effect same as described above is also obtained in this case.
[other examples of heat exchanger]
Fig. 8 is the perspective view for indicating the other examples of heat exchanger 1 of the embodiments of the present invention 1.It is shown in Fig. 8
Different hacures indicate the variety classes for being formed with different types of first slot 6 and the second slot 7 in the region of heat-transfer pipe 2a, 2b
Heat-transfer pipe 2a, 2b.
Different types of first slot 6 and the second slot 7 are formed in a heat exchanger 1 as shown in figure 8, also can be used
Different more than two types heat-transfer pipe 2a, 2b.In addition, the internal junction of the heat-transfer pipe 2 as shown in Fig. 4 (a)~Fig. 4 (c)
Multiple second slot 7a, 7b of one heat-transfer pipe 2 like that, can also be formed as different shapes by structure 2.
In this case, effective heat-transfer pipe 2a, 2b can be arranged for the different each working fluid of property.Alternatively,
Effective heat-transfer pipe 2a, 2b can be arranged according to the state change of working fluid.Thus, it is possible to further increase heat-transfer pipe 2a,
The heat transference efficiency of 2b.
[structure of heat-transfer pipe when manufacture]
Fig. 9 (a)~Fig. 9 (c) is the structure of the heat-transfer pipe 2 when concentrating the manufacture for indicating the embodiments of the present invention 1
Figure, Fig. 9 (a) is the figure for indicating the expansion of the inner surface of heat-transfer pipe 2, and Fig. 9 (b) is the summary for indicating the inner surface of heat-transfer pipe 2
Perspective view, Fig. 9 (c) is the explanatory diagram for the section for indicating that the inner surface of heat-transfer pipe 2 is orthogonal with the length direction of heat-transfer pipe 2.
As shown in Fig. 9 (a)~Fig. 9 (c), heat-transfer pipe 2 forms multiple first slots 6 in inner surface during fabrication.Multiple first
Slot 6 can be integrally formed when heat-transfer pipe 2 forms.That is, multiple first slots 6 in the manufacturing process when manufacturing heat-transfer pipe 2 simultaneously
It is formed.
[explanation when heat-transfer pipe expander]
Figure 10 (a), Figure 10 (b) are expanders when concentrating 2 expander of heat-transfer pipe for indicating the embodiments of the present invention 1
The figure of process S1, S2, Figure 10 (a) are the length indicated by expander pipe cleaning (tube expanding burette) 11a along heat-transfer pipe 2
The figure for the expansion process S1 that degree direction is inserted into as the crow flies, Figure 10 (b) are to indicate to make expander pipe cleaning 11b on one side relative to heat-transfer pipe 2
Length direction rotation, the figure of expansion process S2 that is inserted on one side.
As shown in Figure 10 (a), in order to which the multiple fins 3 arranged relative to multiple 2 intervals of heat-transfer pipe are fixed on
Heat-transfer pipe 2 after expander, and expander pipe cleaning 11a is advanced and is inserted into as the crow flies along the length direction of heat-transfer pipe 2, thus will heat transfer
The gradually expander of pipe 2.The expander pipe cleaning 11a will be made to advance and be inserted into as the crow flies along the length direction of heat-transfer pipe 2, thus will heat transfer
The process of the gradually expander of pipe 2 is known as expansion process S1.
In expansion process S1, expander pipe cleaning 11a as described later has parallel with the length direction of heat-transfer pipe 2 multiple
Protrusion 12a.Therefore by expansion process S1, by making with multiple protrusion 12a parallel with the length direction of heat-transfer pipe 2
Expander pipe cleaning 11a is inserted into as the crow flies along the length direction of heat-transfer pipe 2, to form multiple on the track of multiple protrusion 12a
Two slots 7.In this case, multiple second slots 7 are formed as parallel with the length direction of heat-transfer pipe 2 linear.In addition in the feelings
Under condition, if being formed intersects the first slot 6 with the second slot 7 and makes the groove depth of the first slot 6 and the groove depth one of the second slot 7
It causing, then 5 part of internal perisporium for being capable of forming the heat-transfer pipe 2 to be projected into multiple second slots 7 between first slot 6 reams, thus
It is easy to manufacture.
As shown in Figure 10 (b), in order to which multiple fins 3 relative to multiple 2 intervals of heat-transfer pipe and side by side are fixed on
Heat-transfer pipe 2 after expander, make expander pipe cleaning 11b on one side relative to heat-transfer pipe 2 length direction rotation, while be inserted into, thus will
The gradually expander of heat-transfer pipe 2.Will make the expander pipe cleaning 11b on one side relative to heat-transfer pipe 2 length direction rotation, while advance simultaneously
Insertion, so that the process of 2 expander of heat-transfer pipe is known as expansion process S2.
In expansion process S2, expander pipe cleaning 11b as will be described later has spiral relative to the length direction of heat-transfer pipe 2
Multiple protrusion 12b of shape.Therefore spiral helicine by having the length direction relative to heat-transfer pipe 2 by expansion process S2
The expander pipe cleaning 11b of multiple protrusion 12b is revolved along spiral helicine multiple protrusion 12b on one side relative to the length direction of heat-transfer pipe 2
Turn, be inserted on one side, to form multiple second slot 7c or the second slot 7d on the track of multiple protrusion 12b.In this case,
Multiple second slot 7c or the second slot 7d are formed as helical form relative to the length direction of heat-transfer pipe 2.In addition in this case, if
Be formed as intersecting the first slot 6 with the second slot 7c and keep the groove depth of the first slot 6 consistent with the groove depth of the second slot 7c, then can
5 part of internal perisporium for being formed as the heat-transfer pipe 2 being projected into multiple second slot 7c between the first slot 6 reams, thus easy to manufacture.
Here, expander pipe cleaning 11c can also have length than second on the length direction of heat-transfer pipe 2 as will be described later
The short multiple protrusion 12c of the width of the section orthogonal with slot length direction of slot 7.In this case, it is able to use a kind of expander
Pipe cleaning 11c selects expansion process S1 and expansion process S2.There is no need to prepare a variety of expander pipe cleaning 11c, efficiency is higher.
[shape of expander pipe cleaning]
Figure 11 (a1)~Figure 11 (d) be concentrate indicate the embodiments of the present invention 1 expander pipe cleaning 11a, 11b,
The figure of the shape of 11c, 11d, Figure 11 (a1) are to indicate that the expander with the protrusion 12a parallel with the length direction of heat-transfer pipe 2 is scraped
The side view of pipe 11a, Figure 11 (a2) are the main views of the expander pipe cleaning 11a of Figure 11 (a1) from front end, and Figure 11 (b) is to indicate
For length direction relative to heat-transfer pipe 2 with the side view of the expander pipe cleaning 11b of spiral helicine protrusion 12b, Figure 11 (c) is table
Show on the length direction of heat-transfer pipe 2 with convex shorter than the width of the section orthogonal with slot length direction of the second slot 7 of length
The side view of the expander pipe cleaning 11c of portion 12c, Figure 11 (d) are to indicate spirally there is length on the length direction of heat-transfer pipe 2
Spend the side view of the expander pipe cleaning 11d of the protrusion 12d shorter than the width of the section orthogonal with slot length direction of the second slot 7.
Expander pipe cleaning 11a, 11b, 11c, 11d shown in Figure 11 (a1)~Figure 11 (d) is to the heat-transfer pipe with the first slot 6
It is used when 2 expander.By by shape expander pipe cleaning 11a, 11b, 11c, 11d bigger than the internal diameter of heat-transfer pipe 2 to 2 interpolation of heat-transfer pipe
Enter, so that the caliber of heat-transfer pipe 2 be expanded, is inserted through heat-transfer pipe 2 is fixed on throughout one week fin 3 with fin casing 4a
The outside of heat-transfer pipe 2 after through hole 4.
Expander pipe cleaning 11a shown in Figure 11 (a) has the multiple protrusions parallel with the length direction of heat-transfer pipe 2 in side
12a.Expander pipe cleaning 11a is used in above-mentioned expansion process S1, in expander, is being passed by the track of multiple protrusion 12a
Heat pipe 2 is formed with linear multiple second slots 7 parallel with the length direction of heat-transfer pipe 2.
In addition, expander pipe cleaning 11a can also be by keeping the shape of multiple protrusion 12a different, thus make to be formed multiple the
The shape of two slot 7a or the second slot 7b are different.
Expander pipe cleaning 11b shown in Figure 11 (b) side relative to heat-transfer pipe 2 length direction have it is spiral helicine multiple
Protrusion 12b.Expander pipe cleaning 11b is used in above-mentioned expansion process S2, in expander, by the track of multiple protrusion 12b
Spiral helicine multiple second slot 7c or the second slot 7d are formed relative to the length direction of heat-transfer pipe 2 in heat-transfer pipe 2.
In addition, expander pipe cleaning 11b can also be by keeping the shape of multiple protrusion 12b different, to make to be formed by multiple
The shape of second slot 7d is different.
Expander pipe cleaning 11c shown in Figure 11 (c) has length than the second slot 7 in side and along the length direction of heat-transfer pipe 2
The section orthogonal with slot length direction the short multiple protrusion 12c of width.If expander pipe cleaning 11c is in above-mentioned expansion process S1
Use, then in expander, by the track of multiple protrusion 12c heat-transfer pipe 2 formed linear multiple second slots 7,7a,
7b.If expander pipe cleaning 11c is used in above-mentioned expansion process S2, in expander, by the track of multiple protrusion 12c
Multiple spiral helicine second slot 7c or the second slot 7d are formed in heat-transfer pipe 2.
In addition, expander pipe cleaning 11c can also be by keeping the shape of multiple protrusion 12c different, to make to be formed by multiple
The shape of second slot 7 is different.
Expander pipe cleaning 11d shown in Figure 11 (d) spirally has length than the second slot 7 along the length direction of heat-transfer pipe 2
The section orthogonal with slot length direction the short multiple protrusion 12d of width.In this case, can with shown in Figure 11 (c)
Expander pipe cleaning 11c is used in the same manner.
[explanation of the working fluid in heat-transfer pipe]
Figure 12 (a), Figure 12 (b) are the working fluids concentrated in the heat-transfer pipe 2 for indicating the embodiments of the present invention 1
State figure, Figure 12 (a) is the figure for the situation for indicating that the groove depth of the first slot 6 is identical as the groove depth of the second slot 7, Figure 12
(b) be the situation for indicating that the groove depth of the first slot 6 is different from the groove depth of the second slot 7 figure.
Under normal circumstances, the working fluid being heated in heat-transfer pipe 2 becomes the higher annular flow of heet transfer rate or ring-type
The state of spray flow.The liquid film 13 flowed along the inner surface that is, heat-transfer area of heat-transfer pipe 2 is formed in heat-transfer pipe 2.Liquid film 13
It carries out convective heat transfer and is substantially carried out the evaporation from liquid film surface.The gas 14 to evaporate by heat in working fluid is in heat-transfer pipe
Central portion flowing in 2.
As shown in Figure 12 (a), Figure 12 (b), there is a situation where the groove depth of the first slot 6 it is identical as the groove depth of the second slot 7,
The situation different from the groove depth of the second slot 7 with the groove depth of the first slot 6.But in any one heat-transfer pipe 2, multiple first slots
6 make thickness of pipe wall thinner than the internal perisporium 5 of heat-transfer pipe 2 with multiple second slots 7.That is, forming multiple first slots 6 and more in heat-transfer pipe 2
A second slot 7 increases the contact area of liquid film 13 and heat-transfer pipe 2 to increase the thickness of pipe wall region thinner than internal perisporium 5.Therefore
In heat-transfer pipe 2, the relatively thin thickness of pipe wall because easily contacting with liquid film 13 can be expanded due to be easy the heat transfer area to conduct heat.Therefore energy
Enough further increase the heat transference efficiency of heat-transfer pipe 2.
In addition, multiple first slots 6 and multiple second slots 7 will as shown in Fig. 3 (a)~Fig. 3 (c) to Fig. 6 (a)~Fig. 6 (c)
The inner surface of heat-transfer pipe 2 is formed as complicated bumps.Therefore the bumps complexity formed in the internal perisporium 5 of the inner surface of heat-transfer pipe 2
Change, the turbulent flow of the working fluid to circulate in heat-transfer pipe 2 can be promoted.Therefore the heat transmitting effect of heat-transfer pipe 2 can be further increased
Rate.
In the embodiment 1, working fluid using HFO refrigerant, HFC refrigerant, for example with R1234yf, R1234ze,
CO2Deng the natural refrigerant or their mix refrigerant for representative.
In addition, in Figure 12 (a), Figure 12 (b), for the two-phase fluid of the working fluid in heat-transfer pipe 2, with single refrigeration
Simulation ground indicates for agent or azeotropic refrigerant.But same effect also can be obtained in mixed non-azeotropic refrigerant
Fruit.
[effect of embodiment 1]
According to embodiment 1, heat exchanger 1 has the heat-transfer pipe 2 for working fluid.Heat exchanger 1 has for passing
The insert of heat pipe 2 and interval and multiple fins 3 for being arranged in parallel.Heat-transfer pipe 2, which has, to be formed in internal perisporium 5 and makes thickness of pipe wall
First slot 6 thinner than internal perisporium 5.Heat-transfer pipe 2 have is formed in internal perisporium 5 and keeps thickness of pipe wall thinner than internal perisporium 5, and shape with
The second different slot 7 of first slot 6,7a, 7b, 7c, 7d.
According to this structure, the region thinner than internal perisporium 5 of the thickness of pipe wall in heat-transfer pipe 2 increases, and can expand because relatively thin
Thickness of pipe wall and be easy heat transfer heat transfer area.It complicates, can promote in addition, being formed in the concave-convex of the internal perisporium 5 of heat-transfer pipe 2
The turbulent flow of the working fluid to circulate in heat-transfer pipe 2.Therefore the heat transference efficiency of heat-transfer pipe 2 can be further increased.
According to embodiment 1, the first slot 6 is formed when manufacturing heat-transfer pipe 2.Second slot 7,7a, 7b, 7c, 7d are being inserted through
It is formed when the expander of the heat-transfer pipe 2 of multiple fins 3.
According to this structure, Liang Ge manufacturing process that is, heat-transfer pipe manufacturing process needed for heat exchanger 1 capable of being divided into and biography
Heat pipe expansion process, the internal perisporium 5 of heat-transfer pipe 2 formed the first slot 6 and second slot 7 different from the first slot 6,7a, 7b, 7c,
Two or more multiple slots of 7d.There is no need for only forming the manufacturing process of slot, it is easy to manufacture be formed with the first slot 6 with
And the heat exchanger 1 of second slot 7,7a, 7b, 7c, 7d, and manufacture efficiency is good.
According to embodiment 1, the groove depth of the first slot 6 is consistent with the second slot 7, the groove depth of 7a, 7b, 7c.
According to this structure, especially in the case where the first slot 6 and the second slot 7,7a, 7b, 7c are formed in crossing manner,
5 part of internal perisporium for being capable of forming the heat-transfer pipe 2 to project to multiple second slots 7,7a, 7b, 7c between the first slot 6 reams,
To easy to manufacture.
According to embodiment 1, the second slot 7,7a, 7b, 7c are formed across relative to the first slot 6.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
In addition, since the second slot 7,7a, 7b, 7c intersect relative to the first slot 6, in heat-transfer pipe 2 the first slot 6 with
The working fluid flowed in second slot 7,7a, 7b, 7c is mutually mixed, so as to further increase the heat transmitting effect of heat-transfer pipe 2
Rate.
According to embodiment 1, the second slot 7d is concurrently formed relative to the first slot 6.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
According to embodiment 1, the second slot 7,7c, 7d are formed with multiple.Multiple second slots 7,7c, 7d are same to each other
Shape.
According to this structure, the second slot 7,7c, 7d can simply and efficiently be formed.
In addition, effective second slot 7,7c, 7d can be selected for the different each working fluid of property.Alternatively, energy
Effective second slot 7,7c, 7d are enough selected according to the state change of working fluid.Therefore heat-transfer pipe 2 can be further increased
Heat transference efficiency.
According to embodiment 1, second slot 7a, 7b is formed with multiple.Multiple second slot 7a, 7b are mutually different shape.
According to this structure, concave-convex more complicatedization for the internal perisporium 5 for being formed in heat-transfer pipe 2 can be made.
In addition, effective second slot 7a, 7b can be arranged for the different each working fluid of property.Alternatively, being capable of root
Effective second slot 7a, 7b are arranged according to the state change of working fluid.Thereby, it is possible to further increase the heat of heat-transfer pipe 2 to pass
Pass efficiency.
According to embodiment 1, the second slot 7,7a, 7b are formed as parallel with the length direction of heat-transfer pipe 2 linear.
According to this structure, the second slot 7,7a, 7b can simply and efficiently be formed.
In addition, the second slot 7,7a, 7b be it is parallel with the length direction of heat-transfer pipe 2 linear, along working-fluid flow
Direction extends.Thus the rising for fluidly inhibiting the pressure loss of working fluid is not hindered.
According to embodiment 1, the second slot 7,7a, 7b will be by that will have the protrusion 12a parallel with the length direction of heat-transfer pipe 2
Expander pipe cleaning 11a be inserted into and formed as the crow flies along the length direction of heat-transfer pipe 2.
According to this structure, the second slot 7,7a, 7b can simply and efficiently be formed.
According to embodiment 1, second slot 7c, 7d is formed as helical form relative to the length direction of heat-transfer pipe 2.
According to this structure, concave-convex more complicatedization for the internal perisporium 5 for being formed in heat-transfer pipe 2 can be made.
In addition, for example spiral helicine second slot 7c, 7d can be formed along the direction orthogonal with spiral helicine first slot 6.?
In this case, the working fluid flowed in the first slot 6 and second slot 7c, 7d in heat-transfer pipe 2 tempestuously mixes, so as to
Further increase the heat transference efficiency of heat-transfer pipe 2.
According to embodiment 1, second slot 7c, 7d is spiral helicine convex by the way that the length direction relative to heat-transfer pipe 2 to have
The expander pipe cleaning 11b of portion 12b, relative to heat-transfer pipe 2 length direction on one side along spiral helicine protrusion 12b rotation, while insert
Enter and is formed.
According to this structure, concave-convex more complicatedization for the internal perisporium 5 for being formed in heat-transfer pipe 2 can be made.
According to embodiment 1, the second slot 7 by will have on the length direction of heat-transfer pipe 2 length than the second slot 7,7a,
The expander pipe cleaning 11c of the short protrusion 12c of the width of the section orthogonal with slot length direction of 7b, along the length direction of heat-transfer pipe 2
It is inserted into and is formed as the crow flies.Alternatively, passing through the expander for the protrusion 12c that will have length shorter on the length direction of heat-transfer pipe 2
Pipe cleaning 11c, on one side relative to heat-transfer pipe 2 length direction rotation, while be inserted into and form second slot 7c, 7d.
According to this structure, the second slot 7,7a, 7b, 7c, 7d can be formed as by using a kind of expander pipe cleaning 11c with
The parallel linear slot of the length direction of heat-transfer pipe 2 or the spiral slot of length direction relative to heat-transfer pipe 2 this two
Plant any of slot.There is no need to prepare a variety of expander pipe cleaning 11c, and efficiency is higher.
According to embodiment 1, the direction of insertion of protrusion 12a, 12b, 12c, 12d and expander pipe cleaning 11a, 11b, 11c, 11d
Orthogonal section and equal with the orthogonal section in the slot length direction of the second slot 7,7a, 7b, 7c, 7d.
According to this structure, the second slot 7,7a, 7b, 7c, 7d shape can be according to the shape of protrusion 12a, 12b, 12c, 12d
Shape changes.
According to embodiment 1, the channel opening portion width 8 of the second slot 7 is equal length with groove bottom width 9.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
According to embodiment 1, the channel opening portion width 8 and groove bottom width 9 of the second slot 7 are different length.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
In addition, the groove bottom width 9 of such as the second slot 7 is capable of forming as the length longer than channel opening portion width 8.In the feelings
Under condition, rises in the speed for the working fluid that trench bottom 10 flows, the heat transference efficiency of heat-transfer pipe 2 can be further increased.
In addition, the groove bottom width 9 of such as the second slot 7 is capable of forming as the length shorter than channel opening portion width 8.In the feelings
Under condition, when can be improved the working fluid flowed in heat-transfer pipe 2 and being flowed into the second slot 7, connect to the heat-transfer area of heat-transfer pipe 2
Efficiency is touched, so as to further increase the heat transference efficiency of heat-transfer pipe 2.
According to embodiment 1, the trench bottom 10 of the second slot 7 is curved surface.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
In addition, the groove bottom width 9 of such as the second slot 7 is capable of forming more to lean on center, then the thinner section of cell wall thickness is round
Arcuation.In this case, inhibit the rising of the pressure loss for the working fluid flowed in the second slot 7.
According to embodiment 1, its trench bottom 10 of the second slot 7 does not have width, and the section orthogonal with slot length direction is V word
Shape.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
In addition, can be improved the heat transfer when working fluid flowed in heat-transfer pipe 2 is flowed into the second slot 7 to heat-transfer pipe 2
The contacting efficiency in face, so as to further increase the heat transference efficiency of heat-transfer pipe 2.
According to embodiment 1, the second slot 7 is formed as the chevron shape parallel with slot length direction in trench bottom 10.
According to this structure, the thickness of pipe wall region thinner than internal perisporium 5 can be increased in heat-transfer pipe 2.In addition, can make to be formed
It is complicated in the concave-convex of internal perisporium 5 of heat-transfer pipe 2.
In addition, the biography towards heat-transfer pipe 2 is improved when the working fluid that can be flowed in heat-transfer pipe 2 is flowed into the second slot 7
The contacting efficiency in hot face, so as to further increase the heat transference efficiency of heat-transfer pipe 2.
According to embodiment 1, working fluid is HFO refrigerant, HFC refrigerant, natural refrigerant or their mixing
Refrigerant.
According to this structure, the heat transference efficiency that working fluid is transmitted from heat-transfer pipe 2 is good.
According to embodiment 1, for manufacturing heat exchanger 1, which has the manufacturing method of heat exchanger 1: supplying
The heat-transfer pipe 2 of working fluid and the multiple fins 3 being arranged in parallel for the insert of heat-transfer pipe 2 and interval.It is manufacturing
The first slot 6 for keeping thickness of pipe wall thinner than internal perisporium 5 is formed when heat-transfer pipe 2 in the internal perisporium 5 of heat-transfer pipe 2.It is being inserted through multiple fins
When the expander of 3 heat-transfer pipe 2, is formed different from the first slot 6 in the internal perisporium 5 of heat-transfer pipe 2 and keep thickness of pipe wall thinner than internal perisporium 5
The second slot 7,7a, 7b, 7c, 7d.
According to this structure, Liang Ge manufacturing process needed for heat exchanger 1 capable of being divided into, in 5 shape of internal perisporium of heat-transfer pipe 2
At two or more multiple slots of the first slot 6 and second slot 7 different from the first slot 6,7a, 7b, 7c, 7d.It is therefore not necessary to
In only formed slot manufacturing process, the heat exchanger 1 easy to manufacture for being formed with the first slot 6 and the second slot 7,7a, 7b, 7c, 7d,
And manufacture efficiency is good.
According to embodiment 1, the second slot 7,7a, 7b formed in 2 expander of heat-transfer pipe, by making to have and heat-transfer pipe 2
The expander pipe cleaning 11a of the parallel protrusion 12a of length direction be inserted into and formed as the crow flies along the length direction of heat-transfer pipe 2.
According to this structure, the second slot 7,7a, 7b can simply and efficiently be formed.
According to embodiment 1, second slot 7c, 7d formed in 2 expander of heat-transfer pipe, by making relative to heat-transfer pipe 2
Length direction has length direction of the expander pipe cleaning 11b of spiral helicine protrusion 12b relative to heat-transfer pipe 2 on one side along helical form
Protrusion 12b rotation, be inserted into and formed on one side.
According to this structure, concave-convex more complicatedization for the internal perisporium 5 for being formed in heat-transfer pipe 2 can be made.
According to embodiment 1, the second slot 7 formed in 2 expander of heat-transfer pipe, by making the length direction in heat-transfer pipe 2
The expander pipe cleaning of the upper protrusion 12c shorter than the width of the second slot 7, the section orthogonal with slot length direction of 7a, 7b with length
11c is inserted into along the length direction of heat-transfer pipe 2 as the crow flies and is formed.Alternatively, the second slot 7c formed in 2 expander of heat-transfer pipe,
7d, by making the expander pipe cleaning 11c with the shorter protrusion 12c of length on the length direction of heat-transfer pipe 2, relative to heat-transfer pipe
2 length direction on one side rotate, while be inserted into and formed.
According to this structure, the second slot 7,7a, 7b, 7c, 7d are formed as and are conducted heat by using a kind of expander pipe cleaning 11c
The parallel linear slot of the length direction of pipe 2 or the spiral slot of length direction both slots relative to heat-transfer pipe 2
Any one of.There is no need to prepare a variety of expander pipe cleaning 11c, and efficiency is higher.
Embodiment 2.
[structure of air-conditioning device]
Figure 13 is the schematic structural diagram for indicating the air-conditioning device 100 of the embodiments of the present invention 2.In addition, in Figure 13
The flowing of middle refrigerant when showing refrigeration operation with the arrow of solid line, the stream of refrigerant when showing heating operation with the arrow of dotted line
It is dynamic.
As shown in figure 13, air-conditioning device 100 has: compressor 101, has used the heat of embodiment 1 to hand at four-way valve 102
Heat source side heat exchanger 103, throttling set 104 and the load-side heat exchanger 105 of parallel operation 1.Air-conditioning device 100 has: to
The heat source side fan 106 that heat source side heat exchanger 103 is blown and the load-side fan blown to load-side heat exchanger 105
107.Air-conditioning device 100 has the piping 108,109 for connecting indoor unit with outdoor unit.Air-conditioning device 100, which has, fills air-conditioning
Set the control device 110,111 that 100 various movable members are controlled.
In air-conditioning device 100, compressor 101, four-way valve 102, heat source side heat exchanger 103, throttling set 104 and
Load-side heat exchanger 105 is connected by refrigerant piping, to form refrigerant circulation loop.
In control device 110,111, such as compressor 101, four-way valve 102, throttling set 104, heat source side fan
106, load-side fan 107 and various sensors etc. are connected via communication line.
It is switched over using the flow path of 110,111 pairs of four-way valves 102 of control device, thus switches refrigeration operation and heating fortune
Turn.Heat source side heat exchanger 103 plays a role in refrigeration operation as condenser, plays in heating operation as evaporator
Effect.Load-side heat exchanger 105 plays a role in refrigeration operation as evaporator, sends out in heating operation as condenser
The effect of waving.
[flowing of refrigerant when refrigeration operation]
The refrigerant of the gaseous state for the high pressure-temperature being discharged from compressor 101 is handed over via 102 heat source side heat of four-way valve
Parallel operation 103 flows into.The refrigerant for flowing into heat source side heat exchanger 103, by with supplied by heat source side fan 106 it is external empty
Gas carries out heat exchange and condenses, thus the refrigerant as the liquid condition of high pressure, and flows out from heat source side heat exchanger 103.
The refrigerant of the liquid condition of the high pressure flowed out from heat source side heat exchanger 103 is flowed into throttling set 104, and becomes low pressure
Gas-liquid two-phase state refrigerant.The refrigerant of the gas-liquid two-phase state of the low pressure flowed out from throttling set 104 is to load-side
Heat exchanger 105 flows into, and is evaporated and carrying out heat exchange with the room air that is supplied by load-side fan 107, thus at
For the refrigerant of the gaseous state of low pressure, and flowed out from load-side heat exchanger 105.It is flowed out from load-side heat exchanger 105
The refrigerant of the gaseous state of low pressure is inhaled into compressor 101 via four-way valve 102.
[flowing of refrigerant when heating operation]
The refrigerant of the gaseous state for the high pressure-temperature being discharged from compressor 101, via four-way valve 102 to load-side
Heat exchanger 105 flows into.The refrigerant for flowing into load-side heat exchanger 105, by with the room that is supplied by load-side fan 107
Interior air carries out heat exchange and condenses, thus the refrigerant as the liquid condition of high pressure, and flows from load-side heat exchanger 105
Out.The refrigerant of the liquid condition of the high pressure flowed out from load-side heat exchanger 105 is flowed into throttling set 104, and is become low
The refrigerant of the gas-liquid two-phase state of pressure.The refrigerant heat source of the gas-liquid two-phase state of the low pressure flowed out from throttling set 104
Side heat exchanger 103 flows into, and is evaporated and carrying out heat exchange with the outside air supplied by heat source side fan 106, thus
The refrigerant of gaseous state as low pressure, and flowed out from heat source side heat exchanger 103.It is flowed out from heat source side heat exchanger 103
Low pressure gaseous state refrigerant, be inhaled into compressor 101 via four-way valve 102.
[effect of embodiment 2]
According to embodiment 2, air-conditioning device 100 has the heat exchanger 1 of above-mentioned embodiment 1 as heat source side
Heat exchanger 103.
According to this structure, air-conditioning device 100 is due to having the heat exchanger 1 of above-mentioned embodiment 1, so as into one
Step improves the heat transference efficiency of heat-transfer pipe 2.
In addition, enumerating the example of air-conditioning device 100 as refrigerating circulatory device in embodiment 2.But this is practical new
It's not limited to that for type.As long as the heat exchanger 1 of embodiment 1 is applied to condenser by the refrigerating circulatory device of the utility model
Or evaporator.In addition, the heat exchanger 1 of embodiment 1 is not to be only applied to heat source side heat exchanger, can also apply
In load-side heat exchanger.
Description of symbols: 1... heat exchanger；2... heat-transfer pipe；2a... heat-transfer pipe；2b... heat-transfer pipe；3... wing
Piece；4... through hole；4a... fin casing；5... internal perisporium；6... the first slot；7... the second slot；The second slot of 7a...；
The second slot of 7b...；The second slot of 7c...；The second slot of 7d...；8... channel opening portion width；9... groove bottom width；10... slot
Bottom；11a... expander pipe cleaning；11b... expander pipe cleaning；11c... expander pipe cleaning；11d... expander pipe cleaning；The protrusion 12a...；
The protrusion 12b...；The protrusion 12c...；The protrusion 12d...；13... liquid film；14... gas；100... air-conditioning device；101... pressure
Contracting machine；102... four-way valve；103... heat source side heat exchanger；104... throttling set；105... load-side heat exchanger；
106... heat source side fan；107... load-side fan；108... piping；109... piping；110... control device；
111... control device.
Claims (19)
1. a kind of heat exchanger, which is characterized in that have:
Heat-transfer pipe, for working fluid；And
Multiple fins are arranged in parallel for heat-transfer pipe insert and interval,
The heat-transfer pipe includes the first slot, is formed in internal perisporium and keeps thickness of pipe wall thinner than the internal perisporium；And second slot,
It is formed in the internal perisporium and keeps thickness of pipe wall thinner than the internal perisporium, and shape is different from first slot.
2. heat exchanger according to claim 1, which is characterized in that
First slot is formed when manufacturing the heat-transfer pipe,
Second slot is formed in the heat-transfer pipe expander of insert to the multiple fin.
3. heat exchanger according to claim 1 or 2, which is characterized in that
The groove depth of first slot is consistent with the groove depth of second slot.
4. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot is formed across relative to first slot.
5. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot is concurrently formed relative to first slot.
6. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot formed it is multiple,
Multiple second slots are shape same to each other.
7. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot formed it is multiple,
Multiple second slots are mutually different shape.
8. heat exchanger according to claim 1 or 2, which is characterized in that
Second flute profile becomes parallel with the length direction of the heat-transfer pipe linear.
9. heat exchanger according to claim 8, which is characterized in that
By that will have the expander pipe cleaning of the protrusion parallel with the length direction of the heat-transfer pipe along the length side of the heat-transfer pipe
To being inserted into as the crow flies, to form second slot.
10. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot is formed as helical form relative to the length direction of the heat-transfer pipe.
11. heat exchanger according to claim 10,
By the expander pipe cleaning for making that there is spiral helicine protrusion relative to the length direction of the heat-transfer pipe, relative to the heat transfer
The length direction of pipe is inserted into while rotating along the spiral helicine protrusion, to form second slot.
12. heat exchanger according to claim 8, which is characterized in that
By making the expander pipe cleaning on the length direction of the heat-transfer pipe with protrusion along the length direction pen of the heat-transfer pipe
It is inserted straight into form second slot, or by revolving the expander pipe cleaning on one side relative to the length direction of the heat-transfer pipe
Turn to be inserted on one side to form second slot, the section orthogonal with slot length direction of the length of the protrusion than second slot
Width it is short.
13. heat exchanger according to claim 1 or 2, which is characterized in that
The channel opening portion width of second slot is equal length with groove bottom width.
14. heat exchanger according to claim 1 or 2, which is characterized in that
The channel opening portion width of second slot is different length from groove bottom width.
15. heat exchanger according to claim 1 or 2, which is characterized in that
The trench bottom of second slot is curved surface.
16. heat exchanger according to claim 1 or 2, which is characterized in that
Described its trench bottom of second slot does not have width and the section orthogonal with slot length direction is V shape.
17. heat exchanger according to claim 1 or 2, which is characterized in that
Second slot is formed as the chevron shape parallel with slot length direction in trench bottom.
18. heat exchanger according to claim 1 or 2, which is characterized in that
The working fluid is HFO refrigerant, HFC refrigerant, natural refrigerant.
19. a kind of refrigerating circulatory device, which is characterized in that
Has heat exchanger described in any one of claim 1~18.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/001972 WO2018134975A1 (en) | 2017-01-20 | 2017-01-20 | Heat exchanger, refrigeration cycle device, and method for manufacturing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209263760U true CN209263760U (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201790000542.6U Active CN209263760U (en) | 2017-01-20 | 2017-01-20 | Heat exchanger and refrigerating circulatory device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6765451B2 (en) |
| CN (1) | CN209263760U (en) |
| WO (1) | WO2018134975A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10907874B2 (en) | 2018-10-22 | 2021-02-02 | Whirlpool Corporation | Ice maker downspout |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55130352A (en) * | 1979-03-30 | 1980-10-09 | Mitsubishi Electric Corp | Production of heat exchange pipe |
| JPS6152948A (en) * | 1984-08-23 | 1986-03-15 | Mitsubishi Heavy Ind Ltd | Manufacture of tube having inside groove |
| JPS63115612A (en) * | 1986-11-04 | 1988-05-20 | Kobe Steel Ltd | Manufacture of tube with internal groove |
| JPH0757401B2 (en) * | 1988-11-15 | 1995-06-21 | 日立電線株式会社 | Tube expansion method for condensing heat transfer tube with internal groove |
| JPH0875384A (en) * | 1994-07-01 | 1996-03-19 | Hitachi Ltd | Heat transfer tube for non-azeotrope refrigerant, heat exchanger using the same tube, assembling method and refrigerating air conditioner using the same exchanger |
| JPH09138087A (en) * | 1995-11-15 | 1997-05-27 | Mitsubishi Heavy Ind Ltd | Heat transfer tube |
| JP4632487B2 (en) * | 2000-06-22 | 2011-02-16 | 住友軽金属工業株式会社 | Internal grooved heat transfer tube and manufacturing method thereof |
| CN104654881B (en) * | 2014-12-30 | 2016-10-05 | 浙江耐乐铜业有限公司 | A kind of lightweight efficient heat transfer copper pipe |
-
2017
- 2017-01-20 CN CN201790000542.6U patent/CN209263760U/en active Active
- 2017-01-20 JP JP2018562831A patent/JP6765451B2/en active Active
- 2017-01-20 WO PCT/JP2017/001972 patent/WO2018134975A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2018134975A1 (en) | 2019-04-11 |
| WO2018134975A1 (en) | 2018-07-26 |
| JP6765451B2 (en) | 2020-10-07 |
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