CN108291780A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN108291780A CN108291780A CN201580084779.2A CN201580084779A CN108291780A CN 108291780 A CN108291780 A CN 108291780A CN 201580084779 A CN201580084779 A CN 201580084779A CN 108291780 A CN108291780 A CN 108291780A
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- China
- Prior art keywords
- heat exchanger
- heat exchange
- heat
- tube section
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
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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
- F28F2210/00—Heat exchange conduits
- F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
Abstract
A kind of heat exchanger (3；5) include：The flow path of opposite gas vent side (6) is extended to from the gas access side (4) of heat exchanger；And at least one heat exchange coil (8；8a, 8b), it extends past the air flow path and is configured to permit and flow through the heat exchanger coils (8；8a, 8b) fluid and the gas for flowing through the air flow path between heat exchange.At least one heat exchanger coils (8；8a, 8b) include：Refrigerant inlet portion (10), with access terminal (12)；Refrigerant outlet portion (14) has outlet terminal (16)；And heat exchanging part (18), it is connected between the refrigerant inlet portion (10) and the refrigerant outlet portion (14), to allow fluid to be flow in the refrigerant outlet portion (14) by the heat exchanging part (18) from the refrigerant inlet portion (10).The refrigerant inlet portion (10), the refrigerant outlet portion (14) and the heat exchanging part (18) are arranged in the air flow path, so that the gas entered at the gas access side (4) is first by the refrigerant outlet portion (14), then left at the gas vent side (6) before the air flow path through the heat exchanging part (18) by the refrigerant inlet portion (10) and being finally.The refrigerant inlet portion (10) is provided by single entrance tube section (9), the heat exchanging part (18) is provided by least two heat exchange tube sections (20,22) and the refrigerant outlet portion (14) is provided by least two outlet tube sections (24,26) being connected in parallel, wherein the volume (V of the volume (Vin) and the heat exchanging part (18) of the refrigerant inlet portion (10)ex) and the refrigerant outlet portion (14) volume (Vout) summation volume ratio (R) between 1: 3 and 1: 7, in particular between 1: 4 and 1: 6.
Description
The present invention relates to a kind of heat exchangers, relate in particular to one kind and can be used for refrigerating in sale furniture and in low charging
Under the conditions of the heat exchanger that effectively runs.
Refrigeration sale furniture is commonly equipped with refrigerating circuit, and the refrigerating circuit is configured to cooling refrigeration sale furniture
Refrigeration sells space and along the flow direction of circularly cooling agent：(condenser/gas is cold for compressor, heat rejection heat exchanger
But device), expansion device and heat accepting heat exchanger (evaporator).
In order to reduce the energy expenditure of refrigerating circuit, improved in particular by a kind of improved heat accepting heat exchanger of offer
The efficiency of refrigerating circuit will be beneficial, even if under low charge condition, i.e., when only relatively low a small amount of refrigerant is being made
In cold loop when cycle, the improved heat accepting heat exchanger also can effectively be run.
In accordance with an exemplary embodiment of the invention, a kind of heat exchanger includes：Air flow path is extended to from gas access side
Opposite gas vent side；And at least one heat exchange coil, extend past the air flow path, at least one heat exchange
The gas that coil pipe is configured to permit the fluid for flowing through at least one heat exchange coil and flows through the air flow path, it is specific next
Say the heat exchange between air.At least one heat exchange coil includes：Refrigerant inlet portion with access terminal；Have
The refrigerant outlet portion of mouth terminal；And heat exchanging part, it is fluidly connected to refrigerant inlet portion and refrigerant outlet
Between part, for allowing fluid refrigerant to flow to refrigerant outlet portion by heat exchanging part from refrigerant inlet portion
In.Refrigerant inlet portion, heat exchanging part and refrigerant outlet portion are arranged in air flow path so that at the side of gas access
Then the gas of entrance will be by refrigerant inlet portion and finally gas vent first by refrigerant outlet portion
Air flow path is left at side before by the heat exchanging part of heat exchange coil.Refrigerant inlet portion is provided by single tube section.It changes
Hot part and refrigerant outlet portion are provided by least two tube sections being connected in parallel respectively, and refrigerant inlet portion
Volume ratio between volume and heat exchanging part and the summation of the volume of refrigerant outlet portion is specific in the range of 1: 3 to 1: 7
For in the range of 1: 4 to 1: 6.
Even if under low charge condition, i.e., when the refrigerant of only relatively small amount recycles in refrigerating circuit, there is this
The heat exchanger of kind configuration can also effectively be run.Therefore, this heat exchanger is particularly suitable for use in using flammable
In the refrigerating circuit of agent, because in this case, the maximum refrigeration dose recycled in refrigerating circuit is by safety requirements
Limitation.
Hereinafter by the exemplary implementation scheme of the description of the location in greater detail with reference to the attached drawings present invention.
Fig. 1 schematically shows heat exchanger according to the first embodiment of the invention；
Fig. 2 schematically shows heat exchangers according to the second embodiment of the invention；And
Fig. 3 shows the partial cross-sectional view of heat exchanger in accordance with an exemplary embodiment of the invention.
Fig. 1 schematically shows the sectional view of heat exchanger 3 according to the first embodiment of the invention.
Heat exchanger 3 includes：Gas access side 4 is configured to receive opposite current of warm air W, warms up return air in particular；And phase
To gas vent side 6, be configured to the opposite cold airflow C that has been cooled down via heat exchanger 3 of conveying.
In the implementation shown in fig. 1, gas access side 4 is depicted in the bottom of Fig. 1, and gas vent side 6 is depicted
At the top of Fig. 1.Certainly, heat exchanger 3 can be differently orientated, so as to cause the different orientation of air-flow.
Two outer end plates 31a, 32b and the multiple fins 30 being arranged between two end plates 31a, 32b are parallel to gas and enter
The direction of air-flow between mouth side 4 and gas outlet side 6 extends.
Heat exchanger 3 further includes the tortuous heat exchange coil 8 by heat exchanger 3.Heat exchange coil 8 is on the flow direction of refrigerant
Including：Refrigerant inlet portion 10 has the access terminal 12 for receiving refrigerant；Heat exchanging part 18 is arranged in system
The downstream of cryogen intake section 10；And refrigerant outlet portion 14, it is arranged in the downstream of heat exchanging part 18.Refrigerant outlet
Part 14 have outlet terminal 16, the outlet terminal be refrigerant by heat exchange coil 8 later discharging refrigerant.
Refrigerant inlet portion 10, heat exchanging part 18 and refrigerant outlet portion 14 are limited simultaneously by end plate 31a, 32b respectively
And the direction for being substantially normal to fin 30 and air-flow W, C extends.Heat exchange coil 8 further includes coupling part 11, the interconnecting piece
Points 11, which are basically parallel to fin 30, extends and in the external of end plate 31a, 32b by refrigerant inlet portion 10, heat exchanging part 18
It is fluidly coupled to each other with refrigerant outlet portion 14.
Heat exchanging part 18 is included in two subdivisions 17,19 to extend parallel to each other between end plate 31a, 32b.It is substantially parallel
Subdivision 17,19 is set to be fluidly coupled to each other in the other coupling part 11 of extension of the fin 30 outside end plate 31a, 32b.Figure
The quantity of two subdivisions 17,19 shown in 1 is merely exemplary.The person skilled in the art will easily understand heat exchanging parts
18 may include the subdivision 17,19 for any desired quantity being linked in sequence each other by additional coupling part 11.
Refrigerant inlet portion 10, heat exchanging part 18 and refrigerant outlet portion 14 along gas flow path arrangement,
So that the gas entered in gas access side 4 is first by refrigerant outlet portion 14 (superheat section), with being refrigerant warp
Make refrigerant superheat before leaving heat exchange coil 8 by outlet terminal 16.After by refrigerant outlet portion 14, gas will lead to
It crosses refrigerant inlet portion 10 and is finally before the air flow path for leaving heat exchanger 3 at gas vent side 6 through heat exchange coil 8
Heat exchanging part 18.
Refrigerant inlet portion 10 is formed by single entrance tube section 9.
Heat exchanging part 18 is connected by parallel fluid and is substantially parallel to each other two of extension heat exchange tube sections 20,22 and carried
For.The refrigerant inlet side of each and entrance tube section 9 in two heat exchange tube sections 20,22 fluidly connect.
On refrigerant outlet side, two heat exchange tube sections 20,22 in each be transformed into each extend over by heat exchange
The corresponding outlet tube section 24,26 of the gas access side 4 of device 3.
Tube section 24,26 is exported to merge in the downstream of heat exchanger 3, to provide common outlet terminal 16.
As shown in Figure 1, two tube sections 20,22,24,26 for being substantially parallel to each other extension can be in the direction of the airflow
It is disposed adjacent one another.However, they can also be disposed adjacent one another on the direction perpendicular to section shown in FIG. 1.
By the volume V for the refrigerant inlet portion 10 that entrance tube section 9 is formedinWith the volume V of heat exchanging part 18ex(its by
Combined volume (the V for the tube section 20,22 that exchanges heatex=V20+V22) provide) the volume V of refrigerant feeding exit portion 14out(it is by going out
Combined volume (the V of mouth tube section 24,26out=V24+V26) provide) and between volume ratio R in particular between 1: 3 and 1: 7,
That is R=Vin：(Vex+Vout)。
It should be noted that not considering the volume of coupling part 11 when calculating volume ratio R.
It has been found that the heat exchanger 2 with this design allows in particular under low charge condition, i.e., when only opposite
Effectively transmitted when less amount of refrigerant recycles in refrigerating circuit from by heat exchanger 2 gas and flow through heat exchange
The heat of the refrigerant of coil pipe 8.
Due to using only single entrance tube section 9 and therefore the cross section of entrance tube section 9 is significantly less than heat exchange tube section
20, the cross section of 22 combination, therefore the flowing velocity of the refrigerant in entrance tube section 9 is relatively high.Therefore, entrance is flowed through
The a considerable amount of refrigerant of tube section 9 is converted into gas by flowing to the current of warm air W of heat exchanger 3.In particular when changing
When hot device is run with low refrigerant charge, bulk gas is generated in refrigerant inlet portion 10 for improving heat exchanger 3
Efficiency is advantageous.
There may be the other heat exchanging parts 18 that do not describe in figure.This other heat exchanging part 18 can be one
An or part for the additional tortuous heat exchange coil 8 of multiple other heat exchangers.
Two heat exchange tube sections 20,22 and two outlet tube sections 24,26 are depicted in Fig. 1.However, people in the art
Member is it will be readily understood that in the other embodiments being not explicitly shown in the accompanying drawings, more than two heat exchange areas under control for being connected in parallel
Section 20,22 and more than two outlet tube section 24,26 can be used to set refrigerant inlet portion 10 and heat exchanging part 18 it
Between desired volume ratio.
It can also be modified to include more than one heat exchange coil 8 according to the heat exchanger 3 of the first exemplary implementation scheme.
Fig. 2 is the heat exchanger 5 for including two heat exchange coils 8a, 8b of the second exemplary implementation scheme according to the present invention
Sectional view.Identical feature is denoted by the same reference numerals, and is no longer discussed in detail.
For clarity, two heat exchange coils 8a, 8b shown in Fig. 2 only include single heat exchange tube section respectively
20 and single outlet tube section 24.Prolong however, each in heat exchange coil 8a, 8b can have to be substantially parallel to each other respectively
The multiple heat exchange tube sections 20,22 and multiple outlet tube sections 24,26 stretched are similar to the first and second implementation shown in Fig. 1
Scheme.
The access terminal 12a and outlet terminal 16a of first heat exchange coil 8a are arranged in the horizontal side 7a in first (left side) of heat exchanger 5
On, and the access terminal 12b of the second heat exchange coil 8b and outlet terminal 16b are arranged in second opposite (right side) of heat exchanger 5
On horizontal side 7b.Therefore, refrigerant is in a counter-current configuration in particular in refrigerant inlet portion 10a, 10b and refrigerant outlet portion
The first heat exchange coil 8a and the second heat exchange coil 8b are flowed through in 14a, 14b.This causes heat to be almost uniformly distributed in heat exchanger 5
And horizontal side 7a, 7b for avoiding heat exchanger 5 in operation in particular become than another horizontal side 7b, 7a obviously more
Heat.Therefore, the heat transfer in heat exchanger 5 is enhanced and the efficiency of heat exchanger 5 is optimized.
Although illustrating only two heat exchange coils 8a, 8b in fig. 2, the person skilled in the art will easily understand can be with
Using more than two discribed heat exchange coil 8a, 8b, it is not explicitly shown in figure.
The heat exchanging part 18 of additional heat exchange coil or heat exchange coil 8a, 8b can be particularly arranged in by Fig. 1
Above or below the section represented by Fig. 2.
In the case where providing even number heat exchange coil 8a, 8b, it is advantageous to provide phase respectively in the both sides of heat exchanger 5
With quantity access terminal 12a, 12b and outlet terminal 16a, 16b for generate heat heat exchanger 5 the first horizontal side 7a and
Being almost uniformly distributed between the second horizontal side 7b, as previously described.
In the case where providing odd number heat exchange coil 8a, 8b, access terminal 12a, 12b in the both sides of heat exchanger 5
Quantity and export terminal 16a, 16b quantity between difference can be selected as one, so as to make heat exchanger 5 the first horizontal side 7a and
Heat distribution between second horizontal side 7b is as uniform as possible.
Fig. 3 show in accordance with an exemplary embodiment of the invention along be parallel to fin 30 (referring to Fig. 2) extension
The partial cross-sectional view of the heat exchanger 3,5 of section S-S interceptions.
Fig. 3 shows a part and four heat exchanger tubes for orthogonally extending past fin 30 for a fin 30 in particular
Section 20,22.
Heat exchange tube section 20,22 is arranged to rectangular matrix arrangement comprising perpendicular to the direction of air-flow F (that is, in fig. 2
Vertically) extend multiple row and be parallel to air-flow F direction (that is, in fig. 2 flatly) extend multiple rows.
The tube section 20,22 that exchanges heat is different from heat exchange tube section 20,22 along (level) row along the distance B of (vertical) row
Distance A.It can be between 0.7 and 1.0, in particular 0.8 relative to the ratio of the distance B along row along capable distance A
Between 0.9.
The tube section 20,22 that exchanges heat can be between 35mm and 45mm, in particular in 38mm and 42mm along capable distance A
Between, and the tube section 20,22 that exchanges heat along the distance B of row between 45mm and 55mm, in particular 48mm and 52mm it
Between.
The diameter D of tube section 20,22 in particular can be in the range of 7mm to 9.52mm.In particular, tube section
20,22 internal diameter D can be 7mm, and the outer diameter of tube section 20,22 can be 9.52mm.
When each of fin 30 (inwardly) is divided into the fin area X of multiple same sizes, and each fin
When region X is assigned to one in tube section 20,22, the perimeter π D of tube section 20,22 can relative to the size of fin area X
With in 1.0mm/cm2To 2.5mm/cm2In the range of, in particular in 1.5mm/cm2With 2.0mm/cm2Between, for allowing
The efficient heat for flowing through the gas of heat exchanger and flowing through between the refrigerant of heat exchange coil 8 transmits.
Multiple optional features have been set forth below.In specific embodiments, these features can individually or with
The realization in combination of any other feature.
In one embodiment, refrigerant inlet portion, heat exchanging part and refrigerant outlet portion are respectively opposite
Extend between end plate.End plate supports refrigerant inlet portion, heat exchanging part and refrigerant outlet portion in particular, for carrying
For the rigid structure of heat exchanger.End plate also defines the refrigerant inlet portion to be considered when calculating volume ratio, heat exchanging part
With the volume of refrigerant outlet portion.
In one embodiment, heat exchanging part includes extending parallel to each other and being fluidly connected at least by coupling part
Two subdivisions.Offer, which includes the heat exchanging part of multiple subdivisions, allows the capacity for increasing heat exchanger.
In one embodiment, heat exchanger includes at least two heat exchange coils for extending past air flow path.There is provided two
A or more heat exchange coil increases the capacity of heat exchanger.
In one embodiment, heat exchanger includes first group of heat exchange coil and second group of heat exchange coil.First group of heat exchange
The access terminal of coil pipe is arranged on the first horizontal side of heat exchanger, and the access terminal of second group of heat exchange coil is arranged in heat exchange
On the horizontal side of opposite second of device.Therefore, refrigerant flows through direction and the system of the refrigerant inlet portion of first group of heat exchange coil
The direction that cryogen flows through the refrigerant inlet portion of second group of heat exchange coil is opposite.Therefore, heat transfer is in the entire of heat exchanger
It is more uniformly distributed on width, and therefore the efficiency of heat transfer is improved.
In one embodiment, the outlet terminal arrangement of first group of heat exchange coil is on the first horizontal side of heat exchanger, and
And the outlet terminal arrangement of second group of heat exchange coil is on the horizontal side of opposite second of heat exchanger.Therefore, refrigerant flows through first
The direction of the refrigerant outlet portion of group heat exchange coil and refrigerant flow through the refrigerant outlet portion of second group of heat exchange coil
Direction is opposite.Therefore, heat transfer is more uniformly distributed on the entire width of heat exchanger, and therefore refrigerant outlet portion
The heat transfer of interior refrigerant and the efficiency of overheat are improved.
In one embodiment, the internal diameter of tube section is more than 6mm, in particular at least 7mm.In an embodiment
In, the outer diameter of tube section is less than 10mm, is not more than 9.52mm in particular.In one embodiment, the internal diameter of tube section is
The outer diameter of 7mm, tube section are 9.52mm.It has been found that the tube section with these diameters allows effective heat transfer.
In one embodiment, heat exchange tube section is arranged as forming multiple columns and rows of rectangular matrix, wherein heat exchanger tube
Section is different from heat exchange tube section along capable distance along the distance of row.The tube section that exchanges heat is along capable distance relative to heat exchange
Tube section in particular can be between 0.7 and 1.0, in particular between 0.8 and 0.9 along the ratio of the distance of row.
It is found that this structure allows flowing through the effective heat of progress between the gas of heat exchanger and the fluid refrigerant for flowing through tube section
Amount is transmitted.
In one embodiment, distance of the tube section on being parallel to the direction of air-flow is being orthogonal to gas less than tube section
Distance on the direction of stream.It has been found that this configuration allow the gas that flows through heat exchanger and the refrigerant for flowing through tube section it
Between carry out effective heat transfer.
In one embodiment, heat exchange tube section along capable distance between 35mm and 45mm, and/or heat exchange area under control
Section is along the distance of row between 45mm and 55mm.
In one embodiment, heat exchanger further includes being basically parallel to air flow path and/or orthogonal with entrance tube section
Ground extends to multiple fins of outlet tube section and/or the tube section that exchanges heat.Fin guides the air-flow for flowing through heat exchanger, and enhances gas
Flow and flow through entrance tube section, by exporting tube section and by the heat transfer between the refrigerant for the tube section that exchanges heat.
In one embodiment, the region of each fin is divided into more by the perimeter of tube section with respect to psychologically
The fin area of a identical size and the ratio of the fin area of distributing to each tube section are in 1.0mm/cm2To 2.5mm/cm2's
In range, in particular in 1.5mm/cm2With 2.5mm/cm2Between, each in fin area is at one in tube section
Between two parties.It has been found that this configuration allow flow through carried out between the gas of heat exchanger and the refrigerant for flowing through tube section it is effective
Heat transfer.
In one embodiment, heat exchanger is configured to that R290 is made to flow through at least one heat exchange coil.Made using R290
It allows refrigerating circuit highly effective for refrigerant and economically runs.
Although describing the present invention by reference to exemplary implementation scheme, it is understood by one skilled in the art that not taking off
In the case of from the scope of the present invention, various changes can be made and available equivalents carry out the element of Alternative exemplary embodiment.
In addition, without departing from the essential scope, many modifications can be made to make concrete condition or material adapt to
Teachings of the present invention.Therefore, it is not intended to limit the invention to disclosed particular embodiment, but the present invention includes belonging to power
All embodiments in the range of sharp claim.
Reference mark
3 heat exchangers (the first embodiment)
4 gas accesses side
5 heat exchangers (the second embodiment)
6 gas vent sides
First (left side) horizontal side of 7a heat exchangers
Second (right side) horizontal side of 7b heat exchangers
8,8a, 8b heat exchange coil
9 entrance tube sections
10, the refrigerant inlet portion of 10a, 10b heat exchange coil
The coupling part of 11 heat exchange coils
12,12a, 12b access terminal
14, the refrigerant outlet portion of 14a, 14b heat exchange coil
16,16a, 16b export terminal
The subdivision of 17 heat exchanging parts
The heat exchanging part of 18 heat exchange coils
The subdivision of 19 heat exchanging parts
20,22 heat exchange tube section
24,26 outlet tube section
30 fins
31a, 31b end plate
The distance between the tube sections of A in a first direction
The distance between the tube sections of B in a second direction
C cold airflows
The diameter of D tube sections
The direction of F air-flows
R volume ratios
The sections S-S
VexThe volume of heat exchanging part
VinThe volume of refrigerant inlet portion
VoutThe volume of refrigerant outlet portion
V20、V22The volume for the tube section that exchanges heat
V24、V26Export the volume of tube section
W current of warm airs
X fin areas
Claims (15)
1. a kind of heat exchanger (3；5) comprising
Air flow path, from the heat exchanger (3；5) gas access side (4) extends to opposite gas vent side (6)；And
At least one heat exchange coil (8；8a, 8b), extend past the air flow path and being configured to permit flow through it is described
Heat exchange coil (8；8a, 8b) fluid and the gas for flowing through the air flow path between heat exchange；
Wherein at least one heat exchange coil (8；8a, 8b) include：
Refrigerant inlet portion (10) with access terminal (12)；
Refrigerant outlet portion (14) with outlet terminal (16)；And
Heat exchanging part (18) is fluidly connected to the refrigerant inlet portion (10) and the refrigerant outlet portion (14)
Between, for allowing fluid to flow to the refrigerant by the heat exchanging part (18) from the refrigerant inlet portion (10)
In exit portion (14)；
The wherein described refrigerant inlet portion (10), the heat exchanging part (18) and the refrigerant outlet portion (14) are arranged in
In the air flow path so that the gas entered at the gas access side (4) passes through the refrigerant outlet portion first
(14), then it is by the refrigerant inlet portion (10) and finally to leave the air-flow at the gas vent side (6)
Pass through the heat exchange coil (8 before path；8a, 8b) the heat exchanging part (18)；And
The wherein described refrigerant inlet portion (10) is provided by single entrance tube section (9), and the heat exchanging part (18) is by least
Two heat exchange tube sections (20,22) provide, and the refrigerant outlet portion (14) is by least two outlets that are connected in parallel
Tube section (24,26) provides, wherein the volume (V of the refrigerant inlet portion (10)in) with the body of the heat exchanging part (18)
Product (Vex) and the refrigerant outlet portion (14) volume (Vout) summation volume ratio (R) between 1: 3 and 1: 7, it is specific
For between 1: 4 and 1: 6.
2. heat exchanger (5) according to claim 1, wherein the refrigerant inlet portion (10), the heat exchanging part
(18) extend between opposite end plate (31a, 32b) respectively with the refrigerant outlet portion (14).
3. heat exchanger (5) according to claim 1 or 2, wherein the heat exchanging part (18) includes extending parallel to each other simultaneously
And at least two subdivisions (17,19) fluidly connected by coupling part (11).
4. heat exchanger (5) according to any one of claim 1 to 3 comprising extend past the air flow path extremely
Few two heat exchange coils (8a, 8b).
5. heat exchanger (5) according to claim 4 comprising first group of heat exchange coil (8a) and second group of heat exchange coil
(8b), wherein the access terminal (12a) of first group of heat exchange coil (8a) is arranged in the first cross of the heat exchanger (5)
On side (7a) and the access terminal (12b) of second group of heat exchange coil (8b) is arranged in the phase of the heat exchanger (5)
To the second horizontal side (7b) on so that flow through the refrigerant inlet portion (10a) of first group of heat exchange coil (8a)
Direction is opposite with the direction of the refrigerant inlet portion (10b) of second group of heat exchange coil (8b) is flowed through.
6. heat exchanger (5) according to claim 4 or 5 comprising first group of heat exchange coil (8a) and second group of heat exchange plate
It manages (8b), wherein the outlet terminal (12a) of first group of heat exchange coil (8a) is arranged in the first of the heat exchanger (5)
On horizontal side (7a) and the outlet terminal (12b) of second group of heat exchange coil (8b) is arranged in the heat exchanger (5)
On the second opposite horizontal side (7b) so that flow through the refrigerant outlet portion (14a) of first group of heat exchange coil (8a)
Direction it is opposite with the direction of the refrigerant outlet portion (14b) of second group of heat exchange coil (8b) is flowed through.
7. heat exchanger (3 according to any one of the preceding claims；5), wherein the tube section (9,20,22,24,26)
Internal diameter be more than 6mm, in particular at least 7mm, and/or the outer diameter of the wherein described tube section (9,20,22,24,26) is less than
10mm is not more than 9.52mm in particular.
8. heat exchanger (3 according to any one of the preceding claims；5), wherein the heat exchanger tube section (20,22) is by cloth
It is set to the multiple columns and rows to form rectangular matrix.
9. heat exchanger (3 according to claim 8；5), wherein the heat exchanger tube section (20,22) along the row away from
It is different from the heat exchange tube section (20,22) along (A) with a distance from the row from (B).
10. heat exchanger (3 according to claim 9；5), wherein the tube section (9,20,22,24,26) is being parallel to
The distance (A) stated on the direction of air-flow (F) is being orthogonal to the air-flow (F) less than the tube section (9,20,22,24,26)
Distance (B) on direction.
11. the heat exchanger (3 according to any one of claim 8 to 10；5), wherein the heat exchanger tube section (20,22) edge
Ratio of the distance (A) of the row relative to the heat exchange tube section (20,22) along the distance (B) of the row
Between 0.7 and 1.0, in particular between 0.8 and 0.9.
12. the heat exchanger (3 according to any one of claim 8 to 11；5), wherein the tube section (9,20,22,24,
26) the internal diameter D is 7mm, and the outer diameter D of the tube section (9,20,22,24,26) is 9.52mm, the heat exchange area under control
Section (20,22) is along the distance (A) of the row between 35mm and 45mm and/or heat exchange tube section (the 20,22) edge
The distance (B) of the row between 45mm and 55mm.
13. heat exchanger (3 according to any one of the preceding claims；5) further include, being arranged essentially parallel to the air-flow
The fin (30) that path extends.
14. heat exchanger (3 according to claim 14；5), wherein the Zhou Changxiang of the tube section (9,20,22,24,26)
For distribute to each tube section (9,20,22,24,26) fin area (X) ratio in 1.0mm/cm2To 2.5mm/cm2's
In range, in particular in 1.5mm/cm2With 2.5mm/cm2Between, each tube section is by by the total of each fin (30)
Region is divided into the fin area (X) of multiple same sizes and constitutes.
15. heat exchanger (3 according to any one of the preceding claims；5), be configured to make R290 flow through it is described at least
One heat exchange coil (8；8a、8b).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2015/077384 WO2017088900A1 (en) | 2015-11-23 | 2015-11-23 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108291780A true CN108291780A (en) | 2018-07-17 |
Family
ID=54695740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580084779.2A Pending CN108291780A (en) | 2015-11-23 | 2015-11-23 | Heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3380800B1 (en) |
| CN (1) | CN108291780A (en) |
| WO (1) | WO2017088900A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230043875A1 (en) * | 2020-03-05 | 2023-02-09 | Mitsubishi Electric Corporation | Heat exchanger and air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120465U (en) * | 1982-02-10 | 1983-08-16 | 鹿島建設株式会社 | Ice making heat exchanger |
| JPH06281293A (en) * | 1993-03-31 | 1994-10-07 | Toshiba Corp | Heat exchanger |
| JPH0735440A (en) * | 1993-07-23 | 1995-02-07 | Sanyo Electric Co Ltd | Cooling device |
| US6009936A (en) * | 1997-04-17 | 2000-01-04 | Sanyo Electric Co., Ltd. | Heat exchanger |
| US20050086965A1 (en) * | 2003-10-22 | 2005-04-28 | Rejean Lalumiere | Cooling mechanism for refrigeration systems |
| CN1897849A (en) * | 2003-12-22 | 2007-01-17 | 开利公司 | Evaporator for medium temperature refrigerated merchandiser |
| JP2007078228A (en) * | 2005-09-13 | 2007-03-29 | Fuji Electric Retail Systems Co Ltd | Cold air circulation type show case |
| US20110132588A1 (en) * | 2009-11-23 | 2011-06-09 | Icecode, Llc | System and Method for Energy-Saving Inductive Heating of Evaporators and Other Heat-Exchangers |
| CN102519201B (en) * | 2011-12-24 | 2015-07-01 | 广东奥马电器股份有限公司 | Refrigerating box with high-efficiency energy-saving evaporator |
-
2015
- 2015-11-23 EP EP15798124.2A patent/EP3380800B1/en active Active
- 2015-11-23 WO PCT/EP2015/077384 patent/WO2017088900A1/en active Application Filing
- 2015-11-23 CN CN201580084779.2A patent/CN108291780A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120465U (en) * | 1982-02-10 | 1983-08-16 | 鹿島建設株式会社 | Ice making heat exchanger |
| JPH06281293A (en) * | 1993-03-31 | 1994-10-07 | Toshiba Corp | Heat exchanger |
| JPH0735440A (en) * | 1993-07-23 | 1995-02-07 | Sanyo Electric Co Ltd | Cooling device |
| US6009936A (en) * | 1997-04-17 | 2000-01-04 | Sanyo Electric Co., Ltd. | Heat exchanger |
| US20050086965A1 (en) * | 2003-10-22 | 2005-04-28 | Rejean Lalumiere | Cooling mechanism for refrigeration systems |
| CN1897849A (en) * | 2003-12-22 | 2007-01-17 | 开利公司 | Evaporator for medium temperature refrigerated merchandiser |
| JP2007078228A (en) * | 2005-09-13 | 2007-03-29 | Fuji Electric Retail Systems Co Ltd | Cold air circulation type show case |
| US20110132588A1 (en) * | 2009-11-23 | 2011-06-09 | Icecode, Llc | System and Method for Energy-Saving Inductive Heating of Evaporators and Other Heat-Exchangers |
| CN102519201B (en) * | 2011-12-24 | 2015-07-01 | 广东奥马电器股份有限公司 | Refrigerating box with high-efficiency energy-saving evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3380800A1 (en) | 2018-10-03 |
| WO2017088900A1 (en) | 2017-06-01 |
| EP3380800B1 (en) | 2020-04-01 |
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Application publication date: 20180717 |