CN107532857A

CN107532857A - Heat-exchangers of the plate type and the reversible refrigeration machine including such exchanger

Info

Publication number: CN107532857A
Application number: CN201680024693.5A
Authority: CN
Inventors: G.梅雷; S.梅齐亚尼; E.奥泽内
Original assignee: Carrier Corp
Current assignee: Carrier Corp
Priority date: 2015-04-29
Filing date: 2016-04-27
Publication date: 2018-01-02
Also published as: FR3035710A1; EP3289305A1; ES2818177T3; US20180128551A1; WO2016176276A1; EP3289305B1; FR3035710B1

Abstract

This exchanger (1100) includes stacked plate (2A 2L), and the plate is inserted between two end plates (11,12) and defines the passage of the circulation for heat-exchange fluid.These passages are delimited for following loop：First loop (C1), it is used for the circulation of the first heat-exchange fluid, including single path；And second servo loop (C2), it is used for the circulation of the second heat-exchange fluid, including reciprocal two paths, so that each direction of the circulation for second heat-exchange fluid in the second servo loop, a path relative to first loop in described two paths of the second servo loop is cocurrent, and another in described two paths of the second servo loop is adverse current relative to the path in first loop.

Description

Heat-exchangers of the plate type and the reversible refrigeration machine including such exchanger

The present invention relates to a kind of heat-exchangers of the plate type and a kind of refrigeration machine for including such exchanger.

Fig. 1 is shown provided with one group of stacked plate 2A, 2B and 2C brazed-plate heat exchanger 100.Each plate 2A, 2B and 2C has according to its rugose apparent surface of precise boundary figure (such as chevron profile).The edge of plate equipped with packing ring to prevent Fluid stopping body leaks.Plate 2A, 2B and 2C are against being arranged at each other between two end plates 11 and 12 so that the wavy table of two adjacent panels The passage 20 of the circulation for heat-exchange fluid is defined together in face.

Each plate 2A, 2B and 2C and each end plate 11 and 12 include four openings (be each open in their angle one Produced in person), i.e. the first opening 21 of the entrance E1 as the first heat-exchange fluid, the outlet S1 as the first heat-exchange fluid The second opening 22, the 3rd opening 23 of entrance E2 as the second heat-exchange fluid and the outlet as the second heat-exchange fluid S2 the 4th opening 24.The passage 20 defined against each running surface receives the first or second heat-exchange fluid.In showing for Fig. 1 In example, the first heat-exchange fluid circulates in the first loop between the second plate 2B and the 3rd plate 2C.Second heat-exchange fluid exists Circulated in the second servo loop extended between plate 2A and plate 2B.Therefore, the first and second heat-exchange fluids are alternately in two phases Circulated between adjacent plate 2A, 2B and 2C, to ensure the transmission of the heat energy between fluid.

Fig. 2 shows reversible refrigeration machine, and the reversible refrigeration machine includes compressor 400, pressure-reducing valve 200 and similar to Fig. 1's Two exchangers 100 and 300 of exchanger.This four elements are arranged on the common return C of refrigerating fluid.Exchanger 100 and 300 Alternately as condenser or evaporator operation, this, which depends on refrigeration machine, is operated or in air conditioning mode in heating mode Operation, the change of pattern occur by changing loop direction of the refrigerating fluid in common return C.

First exchanger 100 is realized exchanges the heat transfer between the C10 of loop in common return C and first.Second exchanger 300 realize the heat transfer between the exchanges of common return C and second loop C20.

For each operator scheme, such as one of exchanger 100 and 300 is relative to the friendship interacted with this exchanger Road C10 or C20 is gained upstream to run, and another exchanger is run relative to another exchange loop C10 or C20 cocurrent.

The performance adverse current of heat-exchangers of the plate type is more preferable than cocurrent so that for each operator scheme, exchanger 100 and 300 One of without optimization yield.

DE 10 2,006 002 018 discloses reversible refrigeration machine, and it makes it possible to utilize three be arranged in refrigerating circuit Change loop direction of the operator scheme without inverting refrigerating fluid to valve.It is complicated that this solution, which implements, because It needs to install the device for being used for distributing refrigerating fluid.

These are it is contemplated that more particular by proposing the shortcomings that novel plate heat exchanger is to remedy, board-like exchange Device easily uses in reversible refrigeration machine and has gratifying yield.

For this purpose, the present invention relates to a kind of heat-exchangers of the plate type for including stacked plate, the stacked plate to insert Between two end plates and define the passage of the circulation for heat-exchange fluid, it is characterised in that passage is that following loop is delimited：

First loop, it is used for the circulation of the first heat-exchange fluid, including single path, and

Second servo loop, it is used for the circulation of the second heat-exchange fluid, including reciprocal two paths,

So that each direction of the circulation for the second heat-exchange fluid in the second loop, two of second servo loop are logical A path relative to the first loop in road is cocurrent, and another in the two paths of second servo loop is relative to The path of primary Ioops is adverse current.

According to the favourable but optional aspect of the present invention, such exchanger may be incorporated into can technically connect in view of any One or more of feature below being combined：

First loop includes several medial fascicles, and each medial fascicle is delimited and is connected in parallel to each other between two adjacent panels Ground is connected to the forward branching and returning branch in the first loop；

Second servo loop includes two adjacent regions, and the wherein medial fascicle of second servo loop belongs to for one in these areas One in the two paths of secondary circuit, and belong to another in the two paths of second servo loop for another area；

Second servo loop includes first for being separated and being connected to each other by the pipeline outside exchanger by the intermediate plate of exchanger Part and Part II；

Exchanger includes the pipe equipped with slit, and slit distributes the second heat exchange flow in several passages of second servo loop Body.

Another aspect of the present invention is related to a kind of reversible refrigeration machine of the common return including refrigerating fluid, the reversible refrigeration It is as defined above that compressor, pressure-reducing valve and two exchangers, each exchanger are arranged on machine.

According to the favourable but optional aspect of the present invention, such refrigeration machine may be incorporated into can technically connect in view of any One or more of feature below being combined：

Refrigeration machine includes the four-way valve that can change loop direction of the refrigerating fluid in common return；

Common return is formed by the second servo loop of exchanger；

Second servo loop includes being arranged in the entrance and exit at the top of exchanger；

Second servo loop includes being arranged in the entrance and exit at the bottom of exchanger.

In view of the description to the plate heat exchanger according to the present invention below, the present invention will be better understood when, and the hair Bright further advantage be will be apparent, and plate heat exchanger is only presented as example and refer to the attached drawing, in accompanying drawing：

Fig. 1 is the decomposition diagram of the plate heat exchanger of prior art；

Fig. 2 is the diagrammatic view of the reversible refrigeration machine of prior art；

Fig. 3 is the decomposition diagrammatic view of exchanger according to the first embodiment of the invention；

Fig. 4 and Fig. 5 is the figure of the Fig. 3 in the first and second directions of the circulation with heat-exchange fluid exchanger respectively Show；

Fig. 6 and Fig. 7 is the diagram of the refrigeration machine for the exchanger for including Fig. 3；

Fig. 8 is the diagram according to Fig. 3 of another orientation exchanger；

Fig. 9 is the decomposition diagram of exchanger according to the second embodiment of the invention；

Figure 10 and Figure 11 is the figure of the Fig. 9 in the first and second directions of the circulation with heat-exchange fluid exchanger respectively Show；

Figure 12 and Figure 13 is the diagram for distributing the pipe of fluid；

Figure 14 to Figure 17 be the different directions of the circulation with heat-exchange fluid according to the third embodiment of the invention Exchanger diagram；

Figure 18 to Figure 21 be the different directions of the circulation with heat-exchange fluid according to the fourth embodiment of the invention Exchanger diagram；And

Figure 22 and Figure 23 be respectively in one of Figure 14, Figure 15, Figure 18 and Figure 19 configuration exchanger and The diagram of Figure 12 and Figure 13 of one of configuration for Figure 16, Figure 17, Figure 20 and Figure 21 positioning pipe.

Fig. 3 shows the plate heat exchanger 1100 according to the present invention.It includes the first outer surface A's for defining exchanger 1100 First end plate 11 and define the exchanger 1100 relative with first surface A the second outer surface B the second end plate 12.

12 plate 2A to 2L are stacked, that is to say, that one is succeedingly arranged in against another between end plate 11 and 12. Plate 2K arranges against first end plate 11, and plate 2L arranges against the second end plate 12.

End plate 11 and 12 and plate 2A to 2L have the shape of general rectangular.Exchanger 1100 has substantially parallel six face The shape of body, it has rectangular base.M is used for the top edge for specifying the exchanger 1100 at Fig. 3 top, and N is used for Specify the lower edge of the exchanger 1100 parallel to top edge M at Fig. 3 bottom.Edge M and N have small length and one Connection end plate 11 and 12 and plate 2A to 2L long edge O and P are played, it is perpendicular to short edge M and N.Before long edge O is located at Fig. 3 Jing Zhong, and long edge P is in the background.

Each plate 2A to 2L includes rugose according to the precise boundary figure (such as chevron profile) for not limiting the present invention Two relative square surfaces.These ripples are not shown in FIG. 3；They can be similar to the ripple of Fig. 1 exchanger.Plate 2A is arrived 2L edge M, N, O and P is equipped with unshowned soldering packing ring, to prevent fluid from leaking.Two adjacent panels 2A to 2L face Running surface to each other defines the passage of the turbulent circulation for heat-exchange fluid together, and these passages are not shown in FIG. 3, But it may look like Fig. 1 passage 20.

On the direction of its thickness, exchanger 1100 be included in the first area Z1 between first end plate 11 and plate 2E and The second area Z2 between plate 2F and the second end plate 12.Area's Z1 and Z2 adjoining.First area Z1 is located at the first surface A of exchanger 1100 Side on, and the second area Z2 is located on second surface B side.Area Z1 and Z2 by exchanger 1100 on its thickness, also It is to say perpendicular to end plate 11 and 12 and be divided into two on plate 2A to 2L direction.

Exchanger 1100 is that two heat transfer fluid circuits C1 and C2 are delimited.In order to be used in refrigeration machine, provided for water First loop C1, and provide second servo loop C2 for refrigerating fluid.Exchanger loops of the first loop C1 corresponding to Fig. 2 refrigeration machine One of C10 or C20, and second servo loop C2 corresponds to common return C.

C1 and C2 are defined in loop so that water loop C1 includes single path, that is to say, that fluid in a single direction, Circulated from bottom to top between edge N and M in the example of fig. 3.Refrigerating fluid loop C2 includes two paths, Ji areas Entry in Z2 --- wherein refrigerating fluid in a first direction, i.e. circulates from bottom to top between edge N and M, with And the exit passageway in area Z1 --- wherein refrigerating fluid in a second direction that is opposite the first direction, i.e. edge M and N it Between circulate from the top to the bottom.

This configures the ripple from plate 2A to 2L as described below and caused by end plate 11 and 12 and plate 2A to 2L angle The specific arrangements in hole 21 to 24 produce.End plate 11 and 12 and plate 2A to 2L each equipped with the hole of the quantity between one and four, To guide the circulation of fluid in loop C1 and C2.

Hole 21 is located in the first inferior horn, in edge N and P junction point.Hole 22 is located in the second inferior horn, in edge N and O Junction point.Hole 23 is in angle on first, in edge M and P junction point.Hole 24 is in angle on second, in edge M With O junction point.

The first direction of circulation for the fluid in the loop C1 and C2 such as defined in figure 3, the first loop C1's Entrance E1 is formed in area Z2 by the first hole 21 of the second end plate 12.First loop C1 includes the first inferior division or forward branching C11, wherein fluid are recycled to plate 2K always by hole 21, and hole 21 is threaded through in each plate 2A to 2J and 2L.First end plate 11 There is no hole 21 with plate 2K.First loop C1 the second top set or returning branch C12 are defined at plate 2K and the second end plate 12 Between hole 23, the second end plate 12 is defined in the outlet S1 of the first loop C1 in the second area Z2.First end plate 11 and plate 2K do not have Hole 23.Between plate 2K and 2L, fluid is circulated by the hole 23 of the break-through in each plate 2A to 2J and 2L.

Between branch C11 and C12, the first loop C1 includes the several centres being connected in parallel between branch C11 and C12 Branch C13 to C18.Medial fascicle C13 to C18 is presented in the figure 3 representation in a linear fashion, but actually they by plate 2A Swaned in the pattern defined to 2L ripple.

Branch C13 to C15 is the second area Z2 part, and branch C16 to C18 is the first area Z1 part.

Therefore, in area Z1 and Z2, the first loop C1 has from edge N and towards edge M single path.In other words Say, between edge N and M and for Liang Ge areas Z1 and Z2, fluid in the first loop C1 in a single direction, i.e. from bottom to Circulate at top.

The remainder of this description is related to second servo loop C2.Second servo loop C2 entrance E2 is in the second area Z2 by the second end The hole 22 of plate 12 is formed.Second servo loop C2 includes the first inferior division C21, and it individually extends in the second area Z2 and entered second Mouth E2 is connected to the first and second medial fascicle C22 and C23 being connected in parallel between inferior division C21 and top set C24.In Between in branch C22 and C23, fluid circulates from bottom to top, from edge N to edge M.Plate 2F and 2G do not have hole 22.

Top set C24 is extended by the hole 24 of break-through in plate 2B to the 2l in area Z1 and Z2, and its be connected to two its Its medial fascicle C25 and C26, wherein fluid are circulated from the top to the bottom, from edge M to edge N.Medial fascicle C25 and C26 will Top set C24 is parallel-connected to the second inferior division C27, and it passes through the break-through in plate 2A to 2C, 2K and in first end plate 11 Hole 22 individually extends to the second servo loop C2 formed by the hole 22 of end plate 11 in the first area Z1 in the first area Z1 Outlet S2.

Therefore, in area Z2, second servo loop C2 has an entry, wherein fluid in a first direction, i.e. from lower edge N Rise and circulated towards top edge M.In area Z1, second servo loop C2 has exit passageway, and wherein fluid is opposite with first direction Second direction on, i.e. from top edge M and towards lower edge N circulate.

Fig. 4 and Fig. 5 more roughly shows the loop C1 and C2 of exchanger 1100 arrangement again.For loop C2, Fig. 4 pairs Should be in the first direction of Fig. 3 circulation, and Fig. 5 corresponds to the second opposite direction of circulation.

The first direction of Fig. 3 and Fig. 4 circulation corresponds to first operator scheme, and wherein exchanger 1100 is grasped by evaporating Make.In the second area Z2, loop C2 refrigerating fluid performs the first time relative to loop C1 water cocurrent by the way that it is in edge N Circulated from bottom to top between M and in the first area Z1, loop C2 refrigerating fluid performs the water adverse current relative to loop C1 Second by the way that it is circulated from the top to the bottom between edge M and N.

In Figure 5, the direction reversion of the circulation of the refrigerating fluid in second servo loop C2.The circulation of water in the C1 of loop Direction keeps constant.Loop C2 entrance E2 becomes to export S2, and vice versa.Exchanger 1100 is then by being condensate in the second mould Operated in formula.

In this second mode, for the first area Z1, the refrigerating fluid in second servo loop C2 is performed relative to first time The first time of road C1 water cocurrent is by the way that it is followed from bottom to top from lower edge N towards top edge M and in the second area Z2 Ring, the refrigerating fluid in second servo loop C2 perform by the way that it is from top edge M courts second of water adverse current relative to the first loop C1 Lower edge N to circulate from the top to the bottom.

Therefore, for each operator scheme, exchanger 1100 makes loop C2 refrigerating fluid perform the water relative to loop C1 The first time of cocurrent is by second with adverse current by being possibly realized.By this way, the thermal yield of exchanger 1100 improves , because in each operator scheme, loop C1 and C2 fluid for the exit passageway corresponding to loop C2 area upstream Circulation.

Fig. 6 and Fig. 7 shows reversible refrigeration machine, and it includes compressor 400, pressure-reducing valve 200 and two and of exchanger 1100 1200, each exchanger is similar to Fig. 3 to Fig. 5 exchanger.This four element 400,200,1100 and 1200 is arranged on refrigeration On the common return C of liquid.

First exchanger 1100 is realized exchanges the heat transfer between the C10 of loop in common return C and first.Second exchanger 1200 realize the heat transfer between the exchanges of common return C and second loop C20.

Exchanger 1100 and 1200 operates alternately as condenser or evaporator, and it is to heat that this, which depends on refrigeration machine, Operation still operates in air conditioning mode in pattern.The change of pattern is using four-way valve V1 by changing refrigerating fluid in common return Loop direction in C and occur.

In figure 6, for first operator scheme, exchanger 1100 is operated by condensing, and the second exchanger passes through steaming Send operation.Valve V1 is on first position.Common return C refrigerating fluid circulates in a first direction.First, which exchanges loop C10, is Hot-water return, and the second exchange loop C20 is chilled water circuit.

In the figure 7, operated for second operator scheme, exchanger 1100 by evaporating, and the second exchanger pass through it is cold Coagulate to operate.Valve V1 is on the second place.Common return C refrigerating fluid is in the second direction opposite with Fig. 6 first direction Circulation.First exchange loop C10 is chilled water circuit, and the second exchange loop C20 is hot-water return.

For each operator scheme, each exchanger 1100 and 1200 upstream operates for one of area Z1 and Z2, And for another area Z2 or Z1, operate to the cocurrent of exchanger 1100 and 1200.

More accurately, in the first operator scheme shown in Fig. 6 and for each exchanger 1100 and 1200, in area Z2 Common return C first time by or entrance by being performed with exchanging loop C10 or C20 cocurrent relative to corresponding, and Second of common return C in area Z1 by or outlet by upstream being held relative to corresponding the loop C10 or C20 of exchanging OK.Configuration of this configuration corresponding to Fig. 4.

It is public in area Z1 in the figure 7 in shown second operator scheme and for each exchanger 1100 and 1200 Loop C first time by or entrance by being performed with exchanging loop C10 or C20 cocurrent relative to corresponding, and in area Z2 Common return C second by or outlet by being upstream performed relative to corresponding the loop C10 or C20 of exchanging.This Configuration of the individual configuration corresponding to Fig. 5.

In Fig. 3 to Fig. 7, exchanger 1100, wherein loop C1 and C2 entrance E1 and E2 are arranged according to the first orientation It is arranged in along lower edge N at the bottom of exchanger 1100.The fluid of loop C1 in Liang Ge areas Z1 and Z2 and for Fig. 4 Configuration loop C2 fluid among area Z1s of the configuration in area Z2 and for Fig. 5 be circulated up against the power applied by gravity.

Fig. 8 shows the exchanger 1100 according to the second orientation, and wherein edge M orients towards bottom, and edge N is towards top Portion and orient.Loop C1 and C2 entrance E1 and E2 are arranged in along top edge M at the top of exchanger 1100.In Liang Ge areas Z1 Circulated downwards on the direction of the power applied by gravity with the fluid of the loop C1 in Z2 and the loop C2 in area Z1 fluid.

It is relative in loop C2 exit passageway for two orientations of exchanger 1100, the flowing of the water in the C1 of loop It is adverse current in the flowing of refrigerating fluid, i.e., when entrance E2 and outlet S2 are at bottom, the flowing of water is pointed to, such as Fig. 4 to Fig. 7 It is shown；When entrance E2 is with S2 is exported at top, under the flowing sensing of water, as shown in Figure 8.

Fig. 9 shows the exchanger 2100 according to the second embodiment of the invention of double loop exchanger type.It is similar to The element of the exchanger 2100 of the element of exchanger 1100 has identical reference numeral.Below, it is not described in detail and is similar to The element of the exchanger 2100 of the element of exchanger 1100.

It is as described below and with exchanger 1100 on the contrary, exchanger 2100 includes two independent refrigerating fluid loop C2 and C'2, It can realize when they with the pipeline C3 shown in dotted line by means of being suitably connected to each other in fig.9 and pass twice through.Pipeline C3 Roughly shown in Figure 10 and Figure 11 for being described in greater below.

Exchanger 2100 includes two end plates 11 and 12 and eight corrugated blank 2A to 2H being arranged between end plate 11 and 12. Exchanger 2100 also has the middle end plate 13 being inserted between plate 2D and 2E.Middle end plate 13 is essentially between area Z1 and Z2 Separation delimit.

Exchanger 2100 has generally rectangular shape and including top edge M, lower edge N and two transverse edges O and P. End plate 11,12 and 13 and plate 2A to 2H are equipped with hole 21,22,23 and/or 24.

Such as it is being that the first loop C1 that water provides is included caused by end plate 11 in the case that refrigeration machine is by use The entrance E1 that hole 24 is realized.First loop C1 is included since entrance E1 and through in plate 2A to 2G and in middle end plate 13 In caused hole 24 the first branch or forward branching C11.Second inferior division or returning branch C12 in the first loop are in outlet S1 Start and pass through the caused hole 22 in plate 2A to 2G and in middle end plate 13.Between end plate 11 and plate 2H, fluid leads to Circulate in the hole 22 for crossing the break-through in each plate 2A to 2G.

Between branch C11 and C12, the first loop C1 includes the several centres being connected in parallel between branch C11 and C12 Branch C13 to C16.Medial fascicle C13 to C16 is presented in Fig. 9 figure in a linear fashion, but actually they by plate 2A to Swaned in the pattern that 2H ripple defines.

Branch C13 and C14 are the first area Z1 parts, and branch C15 and C16 are the second area Z2 parts.

Therefore in area Z1 and Z2, the first loop C1 has from top edge M and towards lower edge N single path.Change Sentence talk about, between edge M and N and for Liang Ge areas Z1 and Z2, fluid in the first loop C1 in a single direction, i.e. from top Portion is to bottom cycle.

The remainder of this description is related to the loop C2 and C'2 of refrigerating fluid.

Loop C2 is included by caused hole 23 is formed in end plate 12 entrance E20.Loop C2 the first top set C21 or Forward branching in the second area Z2 from entrance E20 and plate 2F by plate 2G and 2H caused hole 23 and extend.

Loop C2 has by caused hole 21 is formed in end plate 12 outlet S20.Loop C2 the second inferior division C22 or Returning branch in the second area Z2 between S20 and plate 2F is exported by plate 2G and 2H caused hole 21 and extend.

Branch C21 and C22 is connected to each other by the medial fascicle C23 delimited between plate 2F and 2G.

Loop C'2 is included by caused hole 21 is formed in end plate 11 entrance E'20.Loop C'2 the first inferior division C' 21 or forward branching in the first area Z1 between entrance E'20 and plate 2C by plate 2A and 2B caused hole 21 and extend.

Loop C'2 is included by caused hole 23 is formed in end plate 11 outlet S'20.Loop C'2 the second top set C' 22 or returning branch in the first area Z1 between S'20 and plate 2C is exported by plate 2A and 2B caused hole 23 and extend.

Branch C'21 and C'22 is connected to each other by the medial fascicle C'23 delimited between plate 2B and 2C.

In Fig. 10, the refrigerating fluid in loop C2 and C'2 circulates in a first direction, and between loop C2 and C'2 Connection realized that loop C2 outlet S20 is connected to loop C'2 entrance E' by connecting pipe C3 by means of connecting pipe C3 20.Therefore, the outlet S'20 of exchanger 2100 as shown in Figure 9 becomes the heat exchange flow formed by loop C2 and C'2 combination The outlet S2 of the common return of body.Entrance E20 becomes common return C2 and C'2 entrance E2.

In area Z1 and Z2, the first loop C1 has from edge M and towards edge N single path.In other words, exist Between edge M and N and for Liang Ge areas Z1 and Z2, fluid in a single direction, i.e. from the top to the bottom in the first loop C1 Circulation.

On the direction of the circulation of Figure 10 fluid, second servo loop C2 and C'2 are included in the first path or preceding in area Z2 To path --- wherein fluid circulates to cocurrent in the C2 of loop, and alternate path or return path in area Z1 --- its Middle fluid upstream circulates in the C'2 of loop.

In fig. 11, the direction reversion of the circulation of the fluid in loop C2 and C'2.Entrance E2 is in area Z1 in loop C' At 2 beginning, and S2 is exported in area Z2 in loop C2 exit.

On the direction of the circulation of Figure 11 fluid, second servo loop C2 and C'2 are included in the first path or preceding in area Z1 To path --- wherein fluid circulates to cocurrent in the C'2 of loop, and alternate path or return path in area Z2 --- Wherein fluid upstream circulates in the C2 of loop.

Therefore, do not consider the loop direction of the fluid in loop C2 and C'2, exchanger 2100 include cocurrent path and The path of adverse current, this makes it possible to optimize heat exchange.

It can be used in reversible refrigeration machine with the similar mode of exchanger 1100 such as realized in figure 6 and figure 7 similar In exchanger 2100 and equipped with pipeline C3 two exchangers.Two sides of the circulation for the fluid in common return C To each exchanger includes two paths, the i.e. exit passageway of adverse current and the entry of cocurrent, and this promotes heat exchange without examining Consider the direction of circulation.

Machine can be water-water refrigerating machine, wherein the fluid for being cooled down and being heated by exchanger 2100 is water.

It is also possible that with Air-Water refrigeration machine, it includes the first air-fluid exchanger and tool of also referred to as " battery " There are the second exchanger of two paths, such as exchanger 2100.

Figure 12 and Figure 13 shows to be incorporated in the pipe 500 in the exchanger 3100 and 4100 shown in Figure 14 to Figure 21.

Longitudinal slit 501 of the pipe 500 equipped with width L.When exchanger 3100 and 4100 is by evaporating to operate, slit 501 ensure the distribution of the fluid in the area Z2 of exchanger 3100 and 4100 loop C'2.Major part of the slit 501 in pipe 500 On extend, slit is interrupted in end so that the rigidity of pipe is ensured that.At work, slit 501 is vertically towards pipe Bottom orients.

Exchanger 3100 is substantially similar to exchanger 2100.It is equipped with two loops C2 and C'2 are connected to each other Connecting pipe C3.Loop C2 is included in the single passage in area Z1, and loop C'2 is included in three passages in area Z2.Work as friendship When parallel operation is by evaporating to operate, pipe 501 distributes fluid in the second area Z2 loop C'2 passage.

With reference to figure 14, the route of the refrigerating fluid in loop C2 and C'2 is used to operate by evaporating as follows：Fluid passes through Entrance E2 at the lower end N of exchanger 3100 enters entry loop C2 passage.Fluid rises in this passage, and connects and wear Cross loop C2 outlet S'2 pipeline C3.Fluid circulates in pipeline C3 and passes through entering at the upper end M of exchanger 3100 Mouth E'2 enters pipe 501.Slit 51 distributes fluid in loop C'2 three passages.At the N of lower end, relative with pipe 501 On side, three passages are connected to the outlet S2 of exchanger 3100.The stream in loop C'2 three passages is indicated in fig. 22 The details of the route of body.

With reference to figure 15, the route of the refrigerating fluid in loop C2 and C'2 is used for opposite with by evaporation operation as follows Side operates upwardly through condensation：Fluid enters the logical of entry loop C'2 by the entrance S2 at the lower end N of exchanger 3100 Road.Fluid rises in these passages, enters pipe 500 by slit 501, and be attached across loop C'2 outlet E'2 pipeline C3.Fluid circulates in pipeline C3 and enters entry loop C2 by entrance S'2.At the N of lower end, loop C2 is connected to exchanger 3100 Outlet E2.

As for heat exchange, when more by twice to four than having in loop C2 entry in the exit passageway in loop C'2 Times passage when, bilateral exchanger 3100 realizes optimum point of production.

Figure 16 shows that the entrance E2 and outlet S2 with loop C2 at top is used for by evaporating the exchange to operate Device 3100.Figure 17 shows that the entrance S2 and outlet E2 with loop C2 at top is used for by condensing the exchanger to operate 3100.Than there is more twice to four times of passage in loop C2 entry in loop C'2 exit passageway.Figure 18 and figure 19 entrance and exits for showing to have loop C2 and C'2 at bottom are used to operate by evaporation and by condensing respectively Exchanger 4100.The entrance and exit that Figure 20 and Figure 21 shows to have loop C2 and C'2 at top is used to lead to respectively Pervaporation and by condensing the exchanger 4100 to operate.The exchanger is different from exchanger 3100, because it is not incorporated in pipeline C3.Operation of the operation of exchanger 4100 similar to exchanger 3100.

Figure 22 is shown by evaporating in Figure 14 exchanger or the area Z2 of Figure 18 exchanger passage to operate The route of fluid, the slit 501 of pipe 500 orient vertically downward.

Figure 23 is shown by evaporating in Figure 16 exchanger or the area Z2 of Figure 20 exchanger passage to operate The route of fluid, the slit 501 of pipe 500 orient vertically downward.

In the context of the present invention, embodiment can combine at least in part each other.

Claims

A kind of 1. heat-exchangers of the plate type (1100 for including stacked plate (2A-2L)；2100；3100；4100), the plate is inserted in two The passage of circulation between individual end plate (11,12) and for heat-exchange fluid, it is characterised in that the passage is that following loop is determined Boundary：

First loop (C1), it is used for the circulation of the first heat-exchange fluid, including single path, and

Second servo loop (C2, C'2, C3), it is used for the circulation of the second heat-exchange fluid, including reciprocal two paths,

So that each direction of the circulation for second heat-exchange fluid in the second servo loop, the second servo loop Described two paths in a path relative to first loop (C1) be cocurrent, and the second servo loop Described two paths in another relative to the path of first loop (C1) be adverse current.
2. heat-exchangers of the plate type (1100) according to claim 1, it is characterised in that first loop (C1) includes several Individual medial fascicle (C13-C18), each medial fascicle are delimited between two adjacent panels (2A-2L) and connected parallel to each other To the forward branching (C11) and returning branch (C12) of first loop (C1).
3. heat-exchangers of the plate type (1100) according to claim 1, it is characterised in that the second servo loop (C2) includes two Individual adjacent region (Z1, Z2), wherein the medial fascicle (C23-C26) of the second servo loop (C2) belongs to for one in these areas One in described two paths of the second servo loop, and belong to the described two logical of the second servo loop for another area Another in road.
4. heat-exchangers of the plate type (2100 according to any one of the preceding claims；3100), it is characterised in that described Secondary circuit includes being separated by the intermediate plate (13) of the exchanger and being connected to each other by the pipeline (C3) outside the exchanger Part I (C2) and Part II (C'2).
5. heat-exchangers of the plate type (3100 according to any one of the preceding claims；4100), it is characterised in that the friendship Parallel operation includes the pipe (500) equipped with slit (501), and the slit distributes in several passages of the second servo loop (C'2) Second heat-exchange fluid.
6. a kind of reversible refrigeration machine of the common return (C) including refrigerating fluid, compressor is arranged on the reversible refrigeration machine (400), pressure-reducing valve (200) and two exchangers (1100；2100；3100；4100), each exchanger is according to preceding claims Any one of.
7. refrigeration machine according to claim 6, it is characterised in that the refrigeration machine exists including that can change the refrigerating fluid The four-way valve (V1) of loop direction in the common return (C).
8. the refrigeration machine according to claim 6 or 7, it is characterised in that the common return (C) is by the exchanger (1100；2100；3100；4100) the second servo loop (C2, C'2, C3) formation.
9. the refrigeration machine according to any one of claim 6 to 8, it is characterised in that the second servo loop (C2, C'2, C3) Including the entrance (E2) being arranged at the top of the exchanger and outlet (S2).
10. the refrigeration machine according to any one of claim 6 to 8, it is characterised in that the second servo loop (C2, C'2, C3) include being arranged in the entrance (E2) at the bottom of the exchanger and outlet (S2).