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CN106885396A - Entrance rectifier structure and plate type heat exchanger - Google Patents

Entrance rectifier structure and plate type heat exchanger Download PDF

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Publication number
CN106885396A
CN106885396A CN201510933718.0A CN201510933718A CN106885396A CN 106885396 A CN106885396 A CN 106885396A CN 201510933718 A CN201510933718 A CN 201510933718A CN 106885396 A CN106885396 A CN 106885396A
Authority
CN
China
Prior art keywords
entrance
heat exchange
heat exchanger
plate
rectifier structure
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.)
Granted
Application number
CN201510933718.0A
Other languages
Chinese (zh)
Other versions
CN106885396B (en
Inventor
李华
佩尔蒂埃·彼埃尔·奥利弗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd
Original Assignee
Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd filed Critical Danfoss Micro Channel Heat Exchanger Jiaxing Co Ltd
Priority to CN201510933718.0A priority Critical patent/CN106885396B/en
Priority to EP16874532.1A priority patent/EP3392592A4/en
Priority to US16/062,214 priority patent/US20190310033A1/en
Priority to PCT/CN2016/095280 priority patent/WO2017101472A1/en
Publication of CN106885396A publication Critical patent/CN106885396A/en
Application granted granted Critical
Publication of CN106885396B publication Critical patent/CN106885396B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/026Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00Details of evaporators; Details of condensers
    • F25B2339/02Details of evaporators
    • F25B2339/024Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0241Evaporators with refrigerant in a vessel in which is situated a heat exchanger having plate-like elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • F25B39/022Evaporators with plate-like or laminated elements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The embodiment provides a kind of entrance rectifier structure for plate type heat exchanger and use its plate type heat exchanger.The plate type heat exchanger includes the side plate that refrigerant inlet is taken over and is assembled together with refrigerant inlet adapter.Entrance rectifier structure is arranged on from the refrigerant inlet and takes over to the path of the main body of the plate type heat exchanger described at least one.And at least one rectifier cell, rectifier cell setting corresponding with the refrigerant inlet channel of plate type heat exchanger are provided with each entrance rectifier structure.

Description

Entrance rectifier structure and plate type heat exchanger
Technical field
The present invention relates to HVAC, automobile, refrigeration and transport field, more particularly to a kind of plate Formula heat exchanger and the entrance rectifier structure for plate type heat exchanger.
Background technology
For the heat exchanger (evaporator) of parallel channels, especially plate type heat exchanger and micro- logical Road heat exchanger, point liquid inequality (mal-distribution) of refrigerant is global technical barrier. The refrigerant for normally entering heat exchanger is present in the form of two-phase, due to application conditions and two-phase The complexity of flowing, is difficult to realize evenly distributing for refrigerant.In many cases, in some passages Excessive liquid refrigerant can be flowed into, and excessive gaseous refrigerant can be flowed into other passages, Thus greatly have impact on the overall performance of evaporator.
In existing solution, the entrance location of meeting each coolant channel in evaporator, if Put distributor.Its main design philosophy is, with less feeder connection sectional area and certain enters Export pressure difference to control the mass flow into the biphase gas and liquid flow of each coolant channel, finally Obtain preferably distribution and heat transfer effect.
But as stepping up for unit efficiency demand is increasingly strict with refrigerant environment friendly, The design of evaporator is faced with challenge higher.
On the one hand, with the development of compressor variable frequency technology, the reference point for the design of evaporator is from initial Single application operating mode, gradually develop into the application demand of multiple spot.The design of distributor is, it is necessary to same When to (full load) at full capacity operation and sub-load (part load) operation account for.And For fixed evaporator structure and distributor, the flow pattern and flow regime of its two phase flow Difference is very big.Design difficulty is obviously improved.Moreover, with plate type heat exchanger, microchannel Heat exchanger etc. is the product of the product of evaporator, different ability needs or limit of power, is generally used Identical dispensing arrangement.And for distribution technique, particularly evaporator flowing and stream , there is certain optimal working range in type feature, after beyond the scope, distribution effects is subject to shadow Ring.
On the other hand, new refrigerant is gradually developed and applies, and this design to evaporator is same Sample proposes challenge.Due to the difference in working medium physical property, in identical evaporator, refrigerant Flowing and heat exchange characteristic there is larger difference.Many evaporator designs, can only specific aim Towards an a kind of or class refrigerant, this causes that the Product Family of correlation is more huge, management with That safeguards is relatively costly.
The content of the invention
The purpose of the present invention aims to solve the problem that at least the one of the above-mentioned problems in the prior art and defect Individual aspect.
In the Correlative Influence Factors of refrigerant distribution technique, evaporator state is important interior Hold.There is important embodiment in the influence in this respect of different load ability and refrigerant category.
Design philosophy of the invention is to set a kind of rectifier structure in evaporator region, is passed through To encouraging again for biphase gas and liquid flow, uncontrolled fluid inlet State Transferring is set to be the homogeneous equal of stabilization Stream (homogenous) state, so that for the entrance that subsequent allocations process provides stabilization flows bar Part, obtains the distribution effects of stabilization, final lifting evaporator heat exchange performance and unit efficiency.
According to an aspect of the invention, there is provided a kind of entrance rectifying junction for plate type heat exchanger Structure, the plate type heat exchanger includes that refrigerant inlet is taken over and is assemblied in one with refrigerant inlet adapter The side plate for rising,
Entrance rectifier structure described at least one is arranged on from the refrigerant inlet and takes over to the plate On the path of the main body of formula heat exchanger, and it is provided with least on each entrance rectifier structure One rectifier cell, the rectifier cell is corresponding with the refrigerant inlet channel of plate type heat exchanger to be set Put.
In one example, each described entrance rectifier structure includes a layer or is spaced apart from each other At least two layers, wherein it is provided with the rectifier cell on each layer.
In one example, entrance rectifier structure is taken over to plate in refrigerant inlet described at least two It is spaced apart on the direction of the dispensed chambers of formula heat exchanger and is arranged side by side.
In one example, the rectifier cell is rectification hole, commutator bar seam or their any group Close.
In one example, the entrance rectifier structure is curved, plate shaped or shape of rectification pad Formula.
In one example, multiple annulus are provided with the layer of the entrance rectifier structure, each institute Stating arranged for interval on annulus has multiple rectification holes;Or
Multiple endless belts are provided with the layer of the entrance rectifier structure, are provided with each endless belt The commutator bar seam that spaced apart multiple is straight or obliquely extends.
In one example, the commutator bar is seamed into rectangle or sickleshaped.
In one example, the center of the layer of the entrance rectifier structure is provided with a rectification Hole.
In one example, the entrance rectifier structure is provided with enlarging chamber.
In one example, the side plate or refrigerant inlet adapter has at least partly receiving described The enlarging chamber of the enlarging chamber of entrance rectifier structure.
In one example, the top surface of the enlarging chamber of the entrance rectifier structure and the side plate Or the top surface of the enlarging chamber of refrigerant inlet adapter is at least partly contacted and is generally located at same Height level.
In one example, the distributor chamber of the enlarging cavity bottom size and plate type heat exchanger Size match so that from refrigerant inlet flow into two phase refrigerant flow through enlarging chamber after, Smoothly enter dispensed chambers, and be assigned in corresponding coolant channel.
In one example, the entrance rectifier structure is arranged on along the central axis of distributor chamber Taken over to the optional position of the distributor chamber from refrigerant inlet.
In one example, the entrance rectifier structure is arranged on the jet of side plate and first distributor Between hole.
In one example, the entrance rectifier structure is arranged on or is integrated in from the refrigerant On mouthful first the first heat exchange plate for rising, on first the second heat exchange plate or first second heat exchanger fin And first distributor between.
In one example, for by two kinds of heat exchange plates of the first heat exchange plate and the second heat exchange plate The two circuit plate type heat exchanger for constituting, in the distributor chamber of second servo loop, first second is changed Sealed between hot plate piece and secondary the first heat exchange plate, the entrance rectifier structure is arranged on or integrated On first the first heat exchanger fin, first the second heat exchanger fin, secondary the first heat exchange plate or secondary second On heat exchange plate;Or
For by the first heat exchange plate, the second heat exchange plate, the 3rd heat exchange plate and the 4th heat exchanger plates Four kinds of heat exchange plates of piece constitute two circuit plate type heat exchanger, in the distributor chamber of second servo loop It is interior, sealed between first the second heat exchange plate and first the 3rd heat exchange plate, the entrance rectifying junction Structure is arranged on or is integrated in first the first heat exchanger fin, first the second heat exchanger fin, first the 3rd heat exchanger plates On piece or on first the 4th heat exchange plate.According to another aspect of the present invention, there is provided a kind of plate Formula heat exchanger, wherein the plate type heat exchanger has above-mentioned entrance rectifier structure.
Brief description of the drawings
It is of the invention these and/or other aspect and advantage from below in conjunction with the accompanying drawings to preferred embodiment Be will be apparent in description and be readily appreciated that, wherein:
Fig. 1 a are a kind of overviews of plate type heat exchanger of the prior art;
Fig. 1 b are the import of the plate type heat exchanger shown in Fig. 1 a and the structural representation of dispensed chambers Figure;
Fig. 2 is the knot of import according to one embodiment of the invention plate type heat exchanger and dispensed chambers Structure schematic diagram;
Fig. 3 a-3d are respectively the top views of the different distortion example of rectifier cell of the invention;
Fig. 4 a-4e are respectively that entrance rectifier structure according to another embodiment of the present invention is arranged on board-like changing The structural representation of the different set locations in hot device;
Fig. 5 is import and the knot of dispensed chambers of plate type heat exchanger according to another embodiment of the present invention Structure schematic diagram, wherein entrance rectifier structure is in the form of flat unit;
Fig. 6 is import and the knot of dispensed chambers of plate type heat exchanger according to another embodiment of the present invention Structure schematic diagram, wherein entrance rectifier structure is in the form of easy rectification unit;
Fig. 7 is the top view of another variation of entrance rectifier structure of the invention.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, make further specific to technical scheme Explanation.In the description, same or analogous drawing reference numeral indicates same or analogous part. Following explanations referring to the drawings to embodiment of the present invention are intended to enter present general inventive concept of the invention Row is explained, and is not construed as to a kind of limitation of the invention.
Referring to Fig. 1 a and 1b, the entirety for respectively illustrating a kind of plate type heat exchanger of the prior art is regarded Import and the structural representation of dispensed chambers of figure and the plate type heat exchanger.Fig. 1 a show can be with For the plate type heat exchanger that two kinds of different fluids flow through, such as two kinds of different fluids can be water and Refrigerant.In view of the plate type heat exchanger of this form is commonly known in the art, therefore herein not Describe in detail again.Only show one of those for the entrance sleeve 4 of refrigerant inflow.Of course, it is possible to root According to the position of the specifically chosen entrance sleeve 4 of needs, and it is not limited to the situation of diagram.
In Figure 1b, the import of the plate type heat exchanger and the specific knot of dispensed chambers are shown in detail Structure.The first heat exchange plate 2 and the second heat exchanger plates for be sequentially arranged side plate 1 from left to right, being arranged alternately Piece 3.Adjacent the first heat exchange plate 2 and the second heat exchange plate 3 has the structure being mutually matched, and makes Obtaining can form aquaporin 10 and coolant channel 9 with heat transfer space and support strength.In order to The heat exchange between cold fluid and hot fluid is realized, as illustrated, aquaporin 10 and coolant channel 9 are handed over For arrangement.The entrance sleeve 4 of refrigerant side (evaporator) is used for and the pipeline of machine set system and preceding The expansion valve connection at end.Herein it should be noted that Fig. 1 a and 1b display plate type heat exchanger conduct The import of evaporator and the structure of dispensed chambers.
In addition, side plate 1 and first heat exchange plate (being in this example the first heat exchange plate 2) it Between be provided with sealing structure 5, such as sealing ring.The sealing ring 5 is typically constructed of metal, and leads to The technique of soldering two is crossed to be assemblied between side plate 1 and first heat exchange plate 2.Generally by coolant channel 9 Distributor 6 be arranged at the entrance location of each coolant channel 9, be usually designed to one or The form of multiple apertures, realizes that refrigerant is equal by way of limiting flow section, increasing pressure drop Even distribution.Distributor of the invention can be arranged on heat exchange plate or with heat exchange plate integrally. First heat exchange plate 2 and the second heat exchange plate 3 are set at the position corresponding with entrance sleeve 4 There is plate hole 8.Multiple distributor chambers 7 are by the and of plate hole 8 on the first and second heat exchange plates 2,3 Distributor 6 is collectively forming.At the position where plate hole 8, lead in refrigerant dispensed chambers 7 The sealing surface crossed around plate hole 8 realizes sealing function, is generally assembled by soldering processes.Such as Described previously, in the scheme in the prior art shown in Fig. 1 a and 1b, distributor 6 will be by it Shown in entrance sleeve 4 and the factor such as its upstream, flow, variations in flow patterns influence, So that point liquid of refrigerant therein is uneven.
In order to improve the flow regime and flow pattern of the two phase flow in evaporator inlet region, further improve Refrigerant distribution effects in evaporator, so as to lift the heat exchange efficiency and unit bulking property of heat exchanger Can and efficiency, in the present invention there is provided a kind of entrance rectifier structure for plate type heat exchanger and Use the plate type heat exchanger of the entrance rectifier structure.
Main inventive concept of the invention provides a kind of entrance rectifying junction for plate type heat exchanger Structure, the plate type heat exchanger includes that refrigerant inlet is taken over and is assemblied in one with refrigerant inlet adapter The side plate for rising, wherein, entrance rectifier structure described at least one is arranged on the side plate and the plate Between the main body of formula heat exchanger, and at least one is provided with each entrance rectifier structure Rectifier cell, rectifier cell setting corresponding with the refrigerant inlet channel of plate type heat exchanger.
Specifically, plate type heat exchanger of the invention includes refrigerant inlet adapter 4 and enters with refrigerant The side plate 1 that mouth adapter 4 is assembled together.Set figure 2 illustrates an entrance rectifier structure 11 Put between side plate 1 and the main body of plate type heat exchanger.It is provided with least on the entrance rectifier structure 11 One rectifier cell 12,13,14 and 15 (describing in detail afterwards).The rectifier cell 12,13, 14 and 15 with the corresponding setting of refrigerant inlet channel 21 of plate type heat exchanger.In view of of the invention The main refrigerant inlet region for theing improvement is that plate type heat exchanger, thus with phase in Fig. 1 a and 1b Same part employs identical reference, and is not repeated.
Here, refrigerant inlet channel 21 is the passage in entrance sleeve 4.
It is appreciated that entrance rectifier structure 11 can include a layer or be spaced apart from each other at least two Rectifier cell is provided with individual layer, wherein each layer.At least two above-mentioned entrance rectifications are being set In the case of structure 11, can be in the dispensed chambers of refrigerant inlet adapter 4 to plate type heat exchanger Compartment of terrain and at least two entrances rectifier structure 11 is abreast set on direction.
As shown in Fig. 2 compared to Fig. 1 b, one embodiment of the present of invention is in sealing ring 5 and first The entrance rectifier structure 11 with enlarging chamber 23 is provided between first heat exchange plate 2.Therewith Match somebody with somebody, side plate 1 is also provided with the enlarging chamber 22 with fiting effect.Regarded in the section shown in Fig. 2 In figure, entrance rectifier structure 11 is arranged to curved in this example.As seen in Fig., the side plate 1 Enlarging chamber 22 accommodate the enlarging chamber 23, Ke Yili of the entrance rectifier structure 11 completely Solution, the invention is not restricted to this, it is also possible to be arranged to the enlarging chamber 22 only partially accommodate described in enter The enlarging chamber 23 of mouth rectifier structure 11.
It is appreciated that the entrance rectifier structure 11 and enlarging chamber 22 can also be arranged on refrigeration It is in agent entrance sleeve 4 or interior.In this case, the pin of the refrigerant inlet adapter 4 and side Plate 1 is assembled together.Now, side plate 1 can be not provided with enlarging chamber 22.It will be appreciated that setting The purpose for putting enlarging chamber is to match with the enlarging chamber 23 of entrance rectifier structure 11, and is carried For necessary strength support.In one example, the edge of entrance rectifier structure of the invention is fixed Enlarging chamber is provided with heat exchanger plates or side plate, and on the entrance rectifier structure, correspondingly, system The enlarging chamber of the enlarging chamber by receiving entrance rectifier structure can be set on cryogen inlet connection.
As shown in Fig. 2 the top surface of the enlarging chamber 23 of entrance rectifier structure 11 at surrounding with The top surface contact of the enlarging chamber 22 of the side plate 1, and it is generally located at sustained height level.
The rectifier cell 12,13,14,15 of multi-form is respectively illustrated in Fig. 3 a-3d.Can To understand, rectifier cell can be rectification hole, commutator bar seam or their any combination, and not only It is limited to the situation of diagram.
In fig. 3 a, multiple annulus are provided with the layer of the entrance rectifier structure 11, each institute Stating arranged for interval on annulus has multiple rectification holes 12.
In fig 3b, multiple endless belts are provided with the layer of the entrance rectifier structure 11, each The commutator bar seam 13 of spaced apart multiple straight extensions is provided with endless belt.Commutator bar seam 13 Rectangularity or bar shaped.
In figure 3 c, multiple endless belts are provided with the layer of the entrance rectifier structure 11, each The commutator bar seam 14 that spaced apart multiple obliquely extends is provided with endless belt.The commutator bar is stitched 14 rectangularities or bar shaped.
In Fig. 3 d, multiple endless belts are provided with the layer of the entrance rectifier structure 11, each The commutator bar seam 15 that spaced apart multiple obliquely extends is provided with endless belt.The commutator bar is stitched 15 one-tenth sickleshapeds.
The entrance rectifier structure 11 can be made of materials such as metal, ceramics, it is of course possible to use class As net system or porous media be replaced, to reach impartial rectification effect.
Specific working method is, the refrigerant of two-phase state by after the throttling of expansion valve, along Connecting line enters the refrigerant inlet adapter 4 of heat exchanger.Its flow regime does not know simultaneously, for portion Divide the operating mode of load, may exist with laminar flow.For operating mode at full capacity, may be with annular flow In the presence of.But by after the effect of special rectifier cell 12,13,14,15, two phase refrigerant is adjusted Whole is the flow regime of homogeneous flow.Meanwhile, cambered surface and enlarging chamber by entrance rectifier structure 11 The collective effect of room 23, stability and the turbulent extent of flow pattern obtain further reinforcing, finally Distributor chamber 7 is entered with the flow regime for being conducive to distribution.
In order to realize the efficient cooperation of rectifier cell 3 and subsequent allocations device chamber 7 in Fig. 2, this hair The bright technical scheme further provided shown in Fig. 4 a.Compared to the situation shown in Fig. 2, in figure The enlarging chamber 23 of entrance rectifier structure 11 is sized to the internal diameter phase of dispensed chambers 7 in 4a Near or identical (namely matching), to realize that two phase refrigerant is made by " horn mouth " chamber With rear, smoothly into distributor chamber 7, and then corresponding coolant channel 9 is assigned to In.
According to the regulative mode of refrigerant flow pattern and fluidised form proposed by the invention, can be by Fig. 4 a Entrance rectifier structure 11 be arranged at any suitable position between side plate 1 and first distributor 6 Place.Specifically, in fig .4, the entrance rectifier structure 11 is arranged on sealing ring 5 and first Between one heat exchange plate 2.
Referring to Fig. 4 b and 4c, respectively illustrate and be arranged to entrance rectifier structure 11 to be formed at first Situation on first heat exchange plate 2 and first the second heat exchange plate 3.Specifically, the entrance rectification Structure 11 may be integrally formed in first the first heat exchange plate 2 or first the second heat exchange plate 3 On;It is of course possible to be formed at first the first heat exchange plate 2 or first second by the way of welding etc. On heat exchange plate 3.
Referring to Fig. 4 d, show and entrance rectifier structure 11 is arranged on the first He of the second heat exchange plate 3 Situation between first distributor 6.It is appreciated that can be incited somebody to action using scheme as known in the art The entrance rectifier structure 11 is arranged between first second heat exchange plate 3 and first distributor 6.
In addition to the situation of above-mentioned diagram, it will be appreciated by those skilled in the art that can be by least one The individual entrance rectifier structure 11 be arranged on each distributor 6 from side plate 1 to plate type heat exchanger it Between arbitrary height position on, the present invention specifically defined is not done to this.
For two circuit plate type heat exchanger, in first distributor 6 and first the second heat exchange plate 3 Between can also exist another loop heat exchange plate and sealing ring 15.
As shown in fig 4e, show that, with two kinds of situations of refrigerant loop, wherein label 15 is First refrigerant loop sealing ring, label 16 are distributor, the label 17 in second refrigerant loop For second refrigerant return passage, label 18 be aquaporin, label 19 be the first refrigerant loop Passage, 20 are adjacent aquaporin.
In the distributor chamber 26 in second refrigerant loop, first the second heat exchange plate 3 with secondary The first refrigerant loop sealing ring or circle 15 are provided between first heat exchange plate 2, for closing the The correspondence position of one refrigerant loop.Entrance rectifier structure 11 is integrated in time the first heat exchange plate On 2, to match with follow-up dispensed chambers 26.It should be noted that this two circuit Plate type heat exchanger, the rectifier cell on entrance rectifier structure 11 can also use above-mentioned Fig. 3 a-3d In shown any concrete form, using single rectifier cell or be integrated in time second On heat exchange plate.It is appreciated that the entrance rectifier structure 11 can using single rectifier cell or One rectifier cell.Alternately, except being integrated in time on the first heat exchange plate 2, can be with It is integrated on time the second heat exchange plate 3.
It is, for being made up of two kinds of heat exchange plates of the first heat exchange plate and the second heat exchange plate Two circuit plate type heat exchanger, in the distributor chamber of second servo loop, first the second heat exchange plate Sealed between secondary the first heat exchange plate, the entrance rectifier structure is arranged on or is integrated in secondary On first heat exchange plate or on secondary the second heat exchange plate.
For by the first heat exchange plate, the second heat exchange plate, the 3rd heat exchange plate and the 4th heat exchanger plates Four kinds of heat exchange plates of piece constitute two circuit plate type heat exchanger, in the distributor chamber of second servo loop It is interior, sealed between first the second heat exchange plate and first the 3rd heat exchange plate, the entrance rectifying junction Structure is arranged on or is integrated on first the 3rd heat exchange plate or on first the 4th heat exchange plate.
It should be noted that the above-mentioned realization side that the present invention is provided on the plate type heat exchanger of double loop Formula, is directed to a kind of selection of double loop ad hoc structure.For double loop plate type heat exchanger, this hair The bright single loop implementation that can also be used shown in Fig. 2 and Fig. 4 a-d, will entrance rectifying junction Structure 11 is arranged near side plate 1 and first the first heat exchange plate 2, and not across in Fig. 4 e first The space of loop seals ring 15.This way, is particularly suited for the internal diameter of sealing ring 15 in Fig. 4 e The situation same or like with the internal diameter of distributor 6.
In addition, it is contemplated that difficulty of processing with assembling ease, can also to it is of the present invention enter Mouth rectifier structure carries out following change.
It should be noted that the entrance rectifier structure 11 is arranged on the center along distributor chamber 7 Axis from refrigerant inlet adapter 4 to the optional position of the distributor chamber 7 on.
Referring to Fig. 5, the globoidal structure of above-mentioned entrance rectifier structure 11 can be arranged to planar shaped Formula, is replaced with flat unit in other words;But remain the design of enlarging cavity.As illustrated, The top surface of the entrance rectifier structure 11 ' is general planar.
Referring to Fig. 6, the design of above-mentioned globoidal structure and enlarging cavity is eliminated, but used Usual heat exchanger side plate 1 and easy entrance rectifier structure 11 ".The wherein entrance rectifier structure 11 " It is metal plate punching part.As illustrated, showing sealed step 51 and cavernous rectifying section 12.
Referring to Fig. 7, can also be in the form of the rectification pad 21 of homogeneous thickness.The rectification pad 21 are used to substitute above-mentioned entrance rectifier structure, and are arranged on and above-mentioned entrance rectifier structure phase At same position, sealed by its periphery and side plate and heat exchange plate adjacent thereto.The rectification Pad 21 is provided with multiple rectifier cells of such as rectification hole, and certain rectification pad 21 can be with Stitched as rectifier cell using above-mentioned commutator bar as needed.
It is appreciated that the present invention is not limited only to above-mentioned structure, above-mentioned structure can also be included Mode is deduced in combination.For example, including multiple folded by each entrance rectifier structure or stacking together Layer, each layer be provided with above-mentioned such as rectification hole or commutator bar seam or their any combination Rectifier cell between rectifier cell, and adjacent layer overlaps each other or identical.Further, it is also possible to Two or more entrance rectifier structures, phase of series connection are provided between side plate and first distributor Be provided with certain gap between adjacent two entrances rectifier structure, realize the secondary of two phase flow or Multiple rectification, to obtain homogeneous flow pattern, to improve final distribution effects.
Additionally, another embodiment of the present invention additionally provides a kind of above-mentioned entrance rectifier structure of use Plate type heat exchanger.In view of above-mentioned be described in detail entrance rectifier structure, and entered using this The plate type heat exchanger of mouth rectifier structure is not changed in other respects, therefore is not repeated herein.
As described above, during above-mentioned technical scheme of the invention can at least realize following advantages At least one aspect:
First, the jet development cavity of rectification slit, cambered surface jet end face and flaring will be effective Refrigerant flowing and the flow pattern state of enhanced water evaporation device entry zone, for follow-up assigning process is provided Reliable and stable entry condition.Solve due to physical properties, the operation of unit multi-state, product The problems such as capacity variance, the influence to evaporator refrigerant distribution.
Second, the rectification unit or entrance rectifier structure for being proposed, mainly in the way of sheet metal component Shaping or inexpensive rectification pad, have larger advantage on cost, almost do not increase evaporator Extra charge.
Some embodiments of the present invention are these are only, it will be appreciated by the skilled addressee that not In the case of the principle and spirit of this present general inventive concept, these embodiments can be made and change Become, the scope of the present invention is limited with claim and their equivalent.

Claims (17)

1. a kind of entrance rectifier structure for plate type heat exchanger, the plate type heat exchanger includes refrigeration Agent entrance sleeve and the side plate being assembled together with refrigerant inlet adapter,
Characterized in that,
Entrance rectifier structure described at least one is arranged on from the refrigerant inlet and takes over to the plate On the path of the main body of formula heat exchanger, and it is provided with least on each entrance rectifier structure One rectifier cell, the rectifier cell is corresponding with the refrigerant inlet channel of plate type heat exchanger to be set Put.
2. entrance rectifier structure according to claim 1, it is characterised in that enter described in each Mouth rectifier structure includes a layer or at least two layers be spaced apart from each other, and is set wherein on each layer There is the rectifier cell.
3. entrance rectifier structure according to claim 1 and 2, it is characterised in that at least two The individual entrance rectifier structure is taken over to the direction of the dispensed chambers of plate type heat exchanger in refrigerant inlet It is upper to be spaced apart and be arranged side by side.
4. the entrance rectifier structure according to any one of claim 1-3, it is characterised in that The rectifier cell is rectification hole, commutator bar seam or their any combination.
5. the entrance rectifier structure according to any one of claim 1-4, it is characterised in that The entrance rectifier structure is curved, plate shaped or form of rectification pad.
6. entrance rectifier structure according to claim 5, it is characterised in that the entrance is whole Multiple annulus are provided with the layer of flow structure, arranged for interval there are multiple rectifications on each described annulus Hole;Or
Multiple endless belts are provided with the layer of the entrance rectifier structure, are provided with each endless belt The commutator bar seam that spaced apart multiple is straight or obliquely extends.
7. entrance rectifier structure according to claim 6, it is characterised in that the commutator bar It is seamed into rectangle or sickleshaped.
8. the entrance rectifier structure according to any one of claim 6-7, it is characterised in that The center of the layer of the entrance rectifier structure is provided with a rectification hole.
9. the entrance rectifier structure according to any one of claim 1-8, it is characterised in that The entrance rectifier structure is provided with enlarging chamber.
10. entrance rectifier structure according to claim 9, it is characterised in that the side plate Or refrigerant inlet adapter has the expansion of the enlarging chamber at least partly accommodating the entrance rectifier structure Oral chamber.
11. entrance rectifier structures according to claim 10, it is characterised in that the entrance The enlarging chamber that the top surface of the enlarging chamber of rectifier structure is taken over the side plate or refrigerant inlet Top surface at least partly contact and be generally located at sustained height level.
12. entrance rectifier structures according to claim 11, it is characterised in that the expansion Oral chamber's bottom size matches with the size of the distributor chamber of plate type heat exchanger so that from refrigeration After the two phase refrigerant that agent entrance is flowed into flows through enlarging chamber, smoothly into dispensed chambers, and quilt It is assigned in corresponding coolant channel.
13. entrance rectifier structures according to claim 1, it is characterised in that the entrance Rectifier structure is arranged on to be taken over to the distribution along the central axis of distributor chamber from refrigerant inlet On the optional position of device chamber.
14. entrance rectifier structures according to claim 13, it is characterised in that the entrance Rectifier structure is arranged between the jet orifice of side plate and first distributor.
15. entrance rectifier structures according to claim 13, it is characterised in that the entrance Rectifier structure is arranged on or be integrated on first the first heat exchange plate from the refrigerant inlet, On first the second heat exchange plate or between first second heat exchanger fin and first distributor.
16. entrance rectifier structures according to claim 14, it is characterised in that for by The two circuit plate type heat exchanger that two kinds of heat exchange plates of one heat exchange plate and the second heat exchange plate are constituted, In the distributor chamber of second servo loop, first the second heat exchange plate and secondary the first heat exchange plate it Between seal, the entrance rectifier structure be arranged on or be integrated in first the first heat exchanger fin, first second On heat exchanger fin, secondary the first heat exchange plate or on secondary the second heat exchange plate;Or
For by the first heat exchange plate, the second heat exchange plate, the 3rd heat exchange plate and the 4th heat exchanger plates Four kinds of heat exchange plates of piece constitute two circuit plate type heat exchanger, in the distributor chamber of second servo loop It is interior, sealed between first the second heat exchange plate and first the 3rd heat exchange plate, the entrance rectifying junction Structure be arranged on or be integrated in first the first heat exchange plate, first the second heat exchange plate, first the 3rd change On hot plate piece or on first the 4th heat exchange plate.
17. a kind of plate type heat exchangers, wherein the plate type heat exchanger has according to claim 1-16 Any one of entrance rectifier structure.
CN201510933718.0A 2015-12-15 2015-12-15 Entrance rectifier structure and plate heat exchanger Expired - Fee Related CN106885396B (en)

Priority Applications (4)

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CN201510933718.0A CN106885396B (en) 2015-12-15 2015-12-15 Entrance rectifier structure and plate heat exchanger
EP16874532.1A EP3392592A4 (en) 2015-12-15 2016-08-15 Inlet flow regulating structure and plate heat exchanger
US16/062,214 US20190310033A1 (en) 2015-12-15 2016-08-15 Inlet flow regulating structure and plate heat exchanger
PCT/CN2016/095280 WO2017101472A1 (en) 2015-12-15 2016-08-15 Inlet flow regulating structure and plate heat exchanger

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CN112097566A (en) * 2020-09-23 2020-12-18 哈尔滨工业大学 A rectifier structure of a printed circuit board heat exchanger
CN114396814A (en) * 2021-12-28 2022-04-26 宏雷机械设备(南通)有限公司 Heat exchanger with adjustable flow
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US20190310033A1 (en) 2019-10-10
WO2017101472A1 (en) 2017-06-22
EP3392592A1 (en) 2018-10-24
CN106885396B (en) 2019-07-19

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