CN208333184U - Shell and tube exchanger and refrigeration system - Google Patents

Abstract

This disclosure relates to shell and tube exchanger and refrigeration system.Wherein, the shell and tube exchanger includes the internal tube body with space, and the tube body top is provided with refrigerant inlet, and the tube body lower part is provided with refrigerant outlet；It is provided with condenser pipe and recovery tubes in the space, the outside of another one in condenser pipe and recovery tubes can be flowed through by passing through the refrigerant in condenser pipe and recovery tubes on the outside of one.Above-mentioned shell and tube exchanger provided by the present application, is conducive to the distribution of refrigerant, and makes the more uniform heat exchange efficiency to improve shell and tube exchanger in the temperature field in the space.Meanwhile when solving as heat recovering heat exchanger or condenser, the problem of refrigerant outlet falseness degree of supercooling.

Description

Shell and tube exchanger and refrigeration system

Technical field

The utility model relates to field of heat exchange more particularly to shell and tube exchanger and refrigeration systems.

Background technique

Shell and tube exchanger generally includes tube body and is arranged in the intracorporal heat exchanger tube of the pipe.In recent years, have routine Condenser and heat recovering heat exchanger are integrated in the trend in a shell and tube exchanger.As shown in Figure 1, being as integrated with conventional A kind of shell and tube exchanger 1 of condenser and heat recovering heat exchanger.Recovery tubes 20 and cold are provided in the shell and tube exchanger 1 Solidifying pipe 30, wherein recovery tubes 20 and condenser pipe 30 are set in shell and tube exchanger 1 in the two different regions in left and right.By When heat exchanger 1 operates normally, only work as one of condenser and heat recovering heat exchanger.I.e. refrigerant from upper and It is out-of-date to flow down, and an only region can exchange heat to refrigerant in two regions in left and right.Flow through the refrigerant in another region then Lower section is flowed directly into the state of not exchanged heat.

Utility model content

According to the utility model embodiment in a first aspect, provide a kind of shell and tube exchanger, the shell and tube exchanger It include: the internal tube body with space, the tube body top is provided with refrigerant inlet, and the tube body lower part is provided with refrigerant Outlet；

It is provided with condenser pipe and recovery tubes in the space, is passed through in condenser pipe and recovery tubes on the outside of one Refrigerant can flow through the outside of another one in condenser pipe and recovery tubes.

Optionally, the condenser pipe and recovery tubes are intervally arranged.

Optionally, the condenser pipe and recovery tubes are intervally arranged up and down or left and right is intervally arranged.

Optionally, the part in the condenser pipe or the recovery tubes is in alphabetical V-type, inverted V type, alphabetical X-type and diamond shape One of or the modes of multiple combinations be arranged.

Optionally, it is additionally provided with the collecting board below the condenser pipe and recovery tubes in the space and is located at Condensation supercooling tube and recuperation of heat supercooling tube below collecting board.

Optionally, the condensation supercooling tube and recuperation of heat supercooling tube are intervally arranged up and down or left and right is intervally arranged；Or,

Part in the condensation supercooling tube or recuperation of heat supercooling tube is in alphabetical V-type, inverted V type, alphabetical X-type and diamond shape One or more combined modes are arranged

Optionally, the heat exchanger further includes the first collector and the second collector positioned at tube body both ends；Described first Collector includes mutually isolated first condensation collecting chamber and the first recuperation of heat collecting chamber, second collector include mutually every From the second condensation collecting chamber and the second recuperation of heat collecting chamber；The condenser pipe connection first condensation collecting chamber and described the Two condensation collecting chambers, the recovery tubes are connected to the first recuperation of heat collecting chamber and the second recuperation of heat collecting chamber.

Optionally, the first condensation collecting chamber and the first heat recovery chamber use flanged joint；The second condensation afflux Room and the second heat recovery chamber use flanged joint；Or,

The heat exchanger further includes the boss for being set to the first collector inner sidewall and the partition for being set to boss；It is described Heat exchanger further includes the boss for being set to the second collector inner sidewall and the partition for being set to boss.

Optionally, one in the first condensation collecting chamber and the second condensation collecting chamber is provided with condensation import, another It is a to be provided with condensate outlet；

One in the first recuperation of heat collecting chamber and the second recuperation of heat collecting chamber is provided with recuperation of heat import, another It is provided with recuperation of heat outlet.

Optionally, the first condensation collecting chamber is divided into mutually isolated upper condensing chamber and lower condensation chamber, the upper condensing chamber It is provided with condensate outlet, the lower condensation chamber is provided with condensation import；

The first recuperation of heat collecting chamber is divided into mutually isolated upper heat recovery chamber and lower heat recovery chamber, and the upper heat is returned It receives room and is provided with recuperation of heat outlet, the lower heat recovery chamber is provided with recuperation of heat import.

Optionally, the first condensation collecting chamber is divided into mutually isolated upper condensing chamber and lower condensation chamber, the upper condensing chamber It is provided with condensate outlet, the lower condensation chamber is provided with condensation import；

One in the first recuperation of heat collecting chamber and the second recuperation of heat collecting chamber is provided with recuperation of heat import, another It is provided with recuperation of heat outlet.

Optionally, the recovery tubes are only distributed in the upper area in the tube body space.

According to the second aspect of the utility model embodiment, a kind of refrigeration system is provided, the refrigeration system includes as before The shell and tube exchanger.

Further, the refrigeration system is air-conditioning.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of shell and tube exchanger.

Fig. 2 is a kind of structural schematic diagram of shell and tube exchanger of one embodiment of the application.

Fig. 3 A is the cut-away view at a visual angle of shell and tube exchanger shown in Fig. 2.

Fig. 3 B is the cross-sectional view at a visual angle of another shell and tube exchanger of one embodiment of the application.

Fig. 3 C and Fig. 3 D are the sectional views of the part recuperation of heat structure of shell and tube exchanger shown in Fig. 3 B.

Fig. 4 is the cross-sectional view at a visual angle of another shell and tube exchanger of one embodiment of the application.

Fig. 5 A is the structural schematic diagram of another shell and tube exchanger of one embodiment of the application.

Fig. 5 B is the structural schematic diagram of another shell and tube exchanger of one embodiment of the application.

Fig. 6 A to Fig. 6 D is the structural schematic diagram of another group of shell and tube exchanger of one embodiment of the application.

Fig. 7 is the structural schematic diagram of another shell and tube exchanger of one embodiment of the application.

Fig. 8 is the cross-sectional view at a visual angle of shell and tube exchanger shown in Fig. 7.

Fig. 9 is the cross-sectional view at a visual angle of another shell and tube exchanger of one embodiment of the application.

Figure 10 A to Figure 10 F is one group of one embodiment of the application knot with the shell and tube exchanger of cold-zone Structure schematic diagram.

Specific embodiment

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.

It is only to be not intended to be limiting this reality merely for for the purpose of describing particular embodiments in the term that the utility model uses With novel.In the "an" of the utility model and singular used in the attached claims, " described " and "the" Most forms are intended to include, unless the context clearly indicates other meaning.It is also understood that term used herein " and/ Or " refer to and include that one or more associated any or all of project listed may combine.

It should be appreciated that " first " " second " and similar word used in present specification and claims It is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts.Equally, "one" or The similar word such as " one " does not indicate that quantity limits yet, but indicates that there are at least one.Unless otherwise noted, " front ", " after The similar word in portion ", " lower part " and/or " top ", "upper", "lower", "left", "right" etc. is only to facilitate illustrate, and not limit In a position or a kind of spatial orientation.The similar word such as " comprising " or "comprising" means to appear in " comprising " or " packet Containing " before element or object cover and appear in the element of " comprising " or "comprising" presented hereinafter or object and its wait Together, it is not excluded that other elements or object." connection " either the similar word such as " connected " be not limited to physics or Mechanical connection, and may include electrical connection, it is either direct or indirect.

With reference to the accompanying drawing, the utility model embodiment is described in detail.In the absence of conflict, following reality The feature applied in example and embodiment can be combined with each other.

Fig. 2 is a kind of structural schematic diagram of shell and tube exchanger 100 of one embodiment of the application, which changes Hot device 100 can be applied to refrigeration system (for example, air-conditioning).

Referring to Fig. 2, and Fig. 3 A to Fig. 6 D is combined if necessary.The shell and tube exchanger 100 includes internal with space Tube body 10.10 top of tube body is provided with refrigerant inlet 40, and 10 lower part of tube body is provided with refrigerant outlet 50.Institute It states and is provided with condenser pipe 30 and recovery tubes 20 in space, pass through the system in condenser pipe 30 and recovery tubes 20 on the outside of one Cryogen can flow through the outside of another one in condenser pipe 30 and recovery tubes 20.So set, be conducive to the distribution of refrigerant, and The utilization rate of refrigerant is improved, and makes the temperature field in the space more uniform, so that refrigerant heat exchanger is more evenly, from And be conducive to improve the heat exchange efficiency of shell and tube exchanger 100, and improve the efficiency of refrigeration unit.

It should be noted that being shown for the ease of distinguishing condenser pipe 30 and recovery tubes 20 in each figure of the application with filled circles Meaning recovery tubes 20 illustrate condenser pipe 30 with open circles, and actually condenser pipe 30 and recovery tubes 20 is hollow heat exchanger tube.

Further, the condenser pipe 30 and recovery tubes 20 are staggered in the space.Optionally, the condensation Pipe 30 and recovery tubes 20 are uniformly arranged.Certainly, condenser pipe 30 and recovery tubes 20 can also unevenly arrange.The application to this not Make specific restriction, can be configured according to specific application environment.

Further, in some optional embodiments, the condenser pipe 30 and recovery tubes 20 are intervally arranged.

Further, in some embodiments, the condenser pipe 30 and about 20 recovery tubes be intervally arranged (in conjunction with Fig. 2, Fig. 3 A, Fig. 3 B and Fig. 4).For example, being intervally arranged layer by layer between condenser pipe 30 and recovery tubes 20 using as shown in Figure 2.When So, Spaced arrangement can also be used between the condenser pipe 30 and recovery tubes 20, for example arranged between every two layers of condenser pipe 30 Two layers of recovery tubes of cloth 20.The application is not specifically limited in this embodiment, and can be configured according to application environment.

In further embodiments, the condenser pipe 30 and recovery tubes 20 or so are intervally arranged (in conjunction with Fig. 5 A, 5B).Than Such as, condenser pipe 30 and recovery tubes 20 can use the interval layer by layer of condenser pipe 30 and recovery tubes 20 as shown in Fig. 5 A, 5B Arrangement.Equally, Spaced arrangement can also be used between condenser pipe and recovery tubes.

When it is implemented, a condensation tube layer can be arranged by multiple condenser pipes 30, multiple recovery tubes 20 are arranged into one A recuperation of heat tube layer, settable multiple condensation tube layer and recuperation of heat layer in the space.Above-mentioned condenser pipe 30 and recovery tubes About 20 are intervally arranged, and actually can be considered upper and lower being intervally arranged between condensation tube layer and recuperation of heat tube layer.Above-mentioned condensation Pipe 30 and recovery tubes 20 or so are intervally arranged, equally can be considered condensation tube layer and recuperation of heat tube layer between left and right every row Cloth.

In addition, in some other embodiment, the part in the condenser pipe 30 or the recovery tubes 20 can substantially be in Alphabetical V-type, inverted V type, the mode of alphabetical one of X-type and diamond shape or multiple combinations arrange (in combination with Fig. 6 A, 6B, 6C and 6D).Optionally, the other parts in the condenser pipe 30 or the recovery tubes 20 can be used above-mentioned left and right be intervally arranged and At least one of be intervally arranged up and down.Certainly, the other parts in the condenser pipe 30 or the recovery tubes 20 can also adopt With other arrangement modes, the application is not construed as limiting, and can be configured according to concrete application.When it is implemented, with recovery tubes 20 In part be in alphabetical X-type arrangement for, can be considered the cross arrangement between two recuperation of heat tube layer, also can be considered that multiple heat are returned Cross arrangement between closed tube layer and one or more recuperation of heat tube layer.

Further, shell and tube exchanger 100 may also include two tube sheets 81,82, they can be respectively assembled in tube body 10 Both ends, by airtight space possessed by the inside of tube body 10.

Further, the shell and tube exchanger 100 further includes the first collector 60 and second positioned at 10 both ends of tube body Collector 70.First collector 60 includes the first mutually isolated condensation collecting chamber 61 and the first recuperation of heat collecting chamber 62, Second collector 70 includes mutually isolated the second condensation collecting chamber 71 and the second recuperation of heat collecting chamber 72.The condenser pipe 30 connections, the first condensation collecting chamber 61 and the second condensation collecting chamber 71, the recovery tubes 20 are connected to first heat Recycle collecting chamber 62 and the second recuperation of heat collecting chamber 72.

It should be noted that first collector 60 and the second collecting chamber 70 are located at the pipe at 10 both ends of tube body The outside of plate 81,82.Correspondingly, it is respectively arranged on the tube sheet 81 and 82 and leads to for what condenser pipe 30 and recovery tubes 20 passed through Hole (not shown), so that the connection of condenser pipe 30 first and second condensation collecting chamber 61,71, recovery tubes 20 are connected to the first and second recuperation of heat Collecting chamber 62,72.The condenser pipe 30, recovery tubes 20 pass through through-hole, and are bonded with through-hole, so that the first and second collector 60, 70 is mutually isolated with the space that has inside tube body 10.

In some embodiments, first and second collector 60,70 is integrally formed.The correspondingly shell and tube exchanger 100 further include the boss 63 for being set to 60 inner sidewall of the first collector and the partition 64 for being set to boss 63, by described first Collector 60 is divided into mutually independent first condensation collecting chamber 61 and the first recuperation of heat collecting chamber 62.

The shell and tube exchanger 100 further includes being set to the boss 73 of 70 inner sidewall of the second collector and being set to convex Second collector 70 is divided into mutually independent second condensation collecting chamber 71 and the second recuperation of heat by the partition 74 of platform 73 Collecting chamber 72.

In further embodiments, first collector 60 is returned by mutually independent first agglutination flow chamber 61 and the first heat It collects the splicing of flow chamber 62 and obtains.Correspondingly, connected between the first condensation collecting chamber 61 and the first heat recovery chamber 62 using flange It connects.First heat recovery chamber 62 can be considered the tube sheet 81 by shell 610, positioned at 610 one end of shell, and be set to shell The end plate 67 of 610 other ends is sealed to form.Wherein, shell 610 is circular hollow structure.

In the specific implementation, be also provided on the outside of shell 610 along the outwardly extending first flange 68 of end plate 67, and with pipe The corresponding second flange 620 of plate 81 (in conjunction with Fig. 3 C).In specific installation, second flange 620 can be real by bolt and gasket etc. Now docked with tube sheet 81.Correspondingly, the shell of the first condensing heat-exchange room 61 can equally be realized and second by bolt and gasket etc. Flange 68 connects.

Equally, the second collector 70 is spliced by mutually independent second condensation collecting chamber 71 and the second recuperation of heat collecting chamber 72 And it obtains.The second condensation collecting chamber 71 and the second heat recovery chamber 72 use flanged joint.Second heat recovery chamber 72 is visual For by shell 710, tube sheet 82 positioned at 710 one end of shell, and be set to the end plate 77 of 610 other end of shell and be sealed to form. Wherein, shell 710 is similarly circular hollow structure.In the specific implementation, it is additionally provided on the outside of shell 710 along end plate 77 to extension The third flange 78 stretched, and the 4th flange 720 corresponding with tube sheet 82 (in conjunction with Fig. 3 D).4th flange 720 can by bolt and The realizations such as gasket are docked with tube sheet 82.Correspondingly, the shell of the second condensing heat-exchange room 11 equally can be real by bolt and gasket etc. Now it is connect with second flange 68.

Wherein, the shell 610 and first flange 68, end plate 67 and second flange 620 can be wholely set, for example pass through casting Make realization.Welded connecting can also be passed through.It can integrally be set by shell 710 and third flange 68, end plate 77 and the 4th flange 720 It sets, for example is realized by casting, welded connecting can also be passed through.This is not specifically limited the application, can be arranged according to application environment.

Above-mentioned condensation collecting chamber and recuperation of heat collecting chamber using flanged joint, relative to using obtained by boss and partition For condensing collecting chamber and recuperation of heat collecting chamber, the effect of isolation and sealing is more preferable.

Optionally, aforementioned barriers 64,74 or 67,77 are substantially set to the first and second collector 60,70 along the vertical direction.Make The first condensation collecting chamber 61 and the first recuperation of heat collecting chamber 62 in being set side by side, the second condensation collecting chamber 71 and the Two recuperation of heat collecting chambers 72 are in be set side by side (in conjunction with Fig. 3 A, 3B and Fig. 4).The partition 64,74 can be also arranged along other directions, The application is not specifically limited in this embodiment, and can be configured according to specific application environment.In addition, the first condensation 61 He of collecting chamber The position of first recuperation of heat collecting chamber 62 can be exchanged, the position of the second condensation collecting chamber 71 and the second recuperation of heat collecting chamber 72 Setting can also exchange.For example, the second condensation collecting chamber 71 is located at the second heat and returns in shell and tube exchanger shown in Fig. 3 A, 3B Collect 72 outside of flow chamber.And in shell and tube exchanger shown in Fig. 4, the second condensation collecting chamber 71 is then located at the second recuperation of heat The inside of collecting chamber 72.Correspondingly, in shell and tube exchanger shown in Fig. 4, length is can be used in recovery tubes 20 and condenser pipe 30 Roughly equal heat exchanger tube.

It is worn it should be noted that being respectively arranged on the partition 64,74 or 67,77 for recovery tubes 20 or condenser pipe 30 The partition board hole (not shown) crossed.Recovery tubes 20 or condenser pipe 30 pass through partition, and are bonded with partition board hole.For example, specific real Shi Shi can be realized after recovery tubes 20 or condenser pipe 30 pass through partition board hole by expander technology.To guarantee the first condensation afflux Room 61 and mutually indepedent, the second condensation collecting chamber 62 of the first recuperation of heat collecting chamber 71 and the second recuperation of heat collecting chamber 72 are mutually solely It is vertical.

Further, the first condensation collecting chamber 61 is divided into mutually isolated upper condensing chamber 611 and lower condensation chamber 612.Than Such as, in the specific implementation, partition 65 can be used to realize.The upper condensing chamber 611 is provided with condensate outlet 92, the lower condensation Room 612 is provided with condensation import 91.The first recuperation of heat collecting chamber 62 is divided into mutually isolated upper heat recovery chamber 621 under Heat recovery chamber 622.For example, in the specific implementation, partition 66 can be used to realize.The upper heat recovery chamber 621 is provided with heat and returns Outlet 94 is received, the lower heat recovery chamber 622 is provided with recuperation of heat import 93.

It should be noted that the partition 64,65 and 66 can be wholely set, it can also be arranged by being welded to connect, can also be led to It crosses bolt and connect setting with the O-ring seal that bolt matches.

Equally, the partition 66 can be wholely set with partition 67, first flange 68, shell 610, second flange 620, such as It is realized, can also be arranged by being welded to connect by casting.This is not specifically limited the application, can be arranged according to application environment.

By the setting of setting condensation import and export 91,92 and recuperation of heat import and export 93,94, respectively to condenser pipe 30 With the refrigerant for heat exchange is passed through in recovery tubes 20, and refrigerant is exported after heat exchange." refrigerant " mentioned here can be The heat exchange mediums such as water.

Condensation import and export 91,92 and recuperation of heat import and export 93,94 are configured using aforesaid way, so that package For formula heat exchanger 100 in normal refrigerating mode, refrigerant flow direction and 10 inner refrigerant of tube body in condenser pipe 30 are from top to bottom The direction of flowing, whole is in " adverse current " trend, is conducive to improve the heat exchange efficiency between refrigerant and refrigerant, that is, is conducive to improve The heat exchange efficiency of shell and tube exchanger 100.

Certainly, partition can also be not provided in the first condensation collecting chamber and the first recuperation of heat collecting chamber.Correspondingly, described first One in condensation collecting chamber and the second condensation collecting chamber is provided with condensation import, another is provided with condensate outlet.Described One in one recuperation of heat collecting chamber and the second recuperation of heat collecting chamber is provided with recuperation of heat import, another is provided with recuperation of heat and goes out Mouthful.

The shell and tube exchanger 100 is particularly used in refrigeration or recuperation of heat.For example, the shell and tube exchanger 100 is being located When recuperation of heat operating mode, it to be used for total heat recovery.Two kinds of operation moulds of refrigeration to shell and tube exchanger 100 or recuperation of heat below Formula is briefly described.

In normal refrigerating mode, refrigerant is (for example, carbon-hydrogen refrigerant, mixing azeotrope refrigerant, F-12 or fluorine Leon -22 etc.) enter the space having inside tube body 10 from refrigerant inlet 40, condenser pipe 30 can either be flowed through, also can Flow through the outside of recovery tubes 20.With condenser pipe 30 heat exchange occurs for refrigerant in flow process.Before heat exchange, refrigerant Usually gaseous state or based on gaseous state；After heat exchange, refrigerant is generally converted to liquid or based on liquid.Later, refrigerant It is flowed out from refrigerant outlet 50, flows to electric expansion valve (EXV, electronic expansion valve), evaporator etc.. Though not occurring with recovery tubes 20 it should be noted that refrigerant flows through the outside of recovery tubes 20 in flow process Heat exchange.Wherein, recovery tubes 20 can mainly play the role of secondary distribution to refrigerant, be conducive to improve the uniform of refrigerant Property.

In heat recovery mode, refrigerant enters the space having inside tube body 10 from refrigerant inlet 40, and can flow Outside through recovery tubes 20 and condenser pipe 30.With recovery tubes 20 heat exchange occurs for refrigerant in flow process.Heat exchange Before, refrigerant is usually gaseous state or based on gaseous state；After heat exchange, refrigerant is generally converted to liquid or based on liquid.It Afterwards, refrigerant is flowed out from refrigerant outlet 50, flows to electric expansion valve, evaporator etc..It should be noted that refrigerant is flowing Though flowing through the outside of condenser pipe 30 during dynamic, heat exchange does not occur with condenser pipe 30.Wherein, condenser pipe 30 is to refrigerant Secondary distribution can mainly be played the role of, be conducive to the uniformity for improving refrigerant.

Fig. 7 is the structural schematic diagram of another shell and tube exchanger 200 of one embodiment of the application.The shell-tube type changes Hot device 200 can be applied to refrigeration system (for example, air-conditioning).And the shell and tube exchanger 200 can be used for freezing and recuperation of heat.This Structure base possessed by structure possessed by the shell and tube exchanger 200 of embodiment and preceding embodiment shell and tube exchanger 100 This is identical.Identical label is thus used in figure with the identical or essentially identical structure of preceding embodiment.It introduces below The unique distinction of shell and tube exchanger 200.

Referring to Fig. 7, and Fig. 8 and Fig. 9 is combined if necessary.With above-mentioned shell and tube exchanger 100 the difference is that the heat Recovery tube 20 is only distributed in the upper area in 10 space of tube body.So that the shell and tube exchanger 200 is in recuperation of heat work When mode, it to be used for part recuperation of heat.

Further, in some embodiments, shell and tube exchanger 200 first condensation collecting chamber 61 be divided into mutually every From upper condensing chamber 611 and lower condensation chamber 612.Wherein the upper condensing chamber 611 is provided with condensate outlet 92, the lower condensation chamber 612 are provided with condensation import 91.And the first recuperation of heat collecting chamber 61 and the second recuperation of heat collecting chamber of shell and tube exchanger 200 One in 71 is provided with recuperation of heat import 93, another is provided with recuperation of heat and exports 94 (in conjunction with Fig. 8).In this case, shell In heat recovery mode, used refrigerant enters pipe heat exchanger from one end of heat exchanger, passes through separately after flowing through recovery tubes 20 One end outflow.To realize the single process operation of refrigerant.

In further embodiments, the first condensation collecting chamber 61 of shell and tube exchanger 200 is divided into mutually isolated upper Condensation chamber 611 and lower condensation chamber 612, the upper condensing chamber 611 are provided with condensate outlet 92, and the lower condensation chamber 612 is provided with Condense import 91.Also, the first recuperation of heat collecting chamber 62 of shell and tube exchanger 200 is divided into mutually isolated upper heat recovery chamber 621 and lower heat recovery chamber 622, the upper heat recovery chamber 621 is provided with recuperation of heat outlet 94, and the lower heat recovery chamber 622 is arranged There is recuperation of heat import 93 (in conjunction with Fig. 9).

By taking shell and tube exchanger shown in Fig. 9 as an example, for the shell and tube exchanger in heat recovery mode, refrigerant is from recuperation of heat Import 93 enters lower heat recovery chamber 622, enters the second recuperation of heat collection after flowing through the recovery tubes 20 being connected to lower heat recovery chamber 622 Flow chamber 72.It is then flowed up from the second heat recovery chamber 72, and flows through and enter with recovery tubes 20 that upper recovery room 621 is connected to Upper heat recovery chamber 621.Finally, by 94 outflow of recuperation of heat outlet.To realize the double-flow operation of refrigerant.This setup, It compares with set-up mode shown in Fig. 8, increases process of the refrigerant in recovery tubes, and make refrigerant and flow from top to bottom Dynamic refrigerant is integrally in " adverse current " trend, is conducive to improve the heat exchange efficiency between refrigerant and refrigerant.

Figure 10 A to Figure 10 F is the structural representation of another shell and tube exchanger 300 of one embodiment of the application Figure.The shell and tube exchanger 300 can be applied to refrigeration system (for example, air-conditioning).And the shell and tube exchanger 300 can be used for making Cold and recuperation of heat.Structure possessed by the shell and tube exchanger 300 of the present embodiment and 100 institute of preceding embodiment shell and tube exchanger The structure having is essentially identical.Identical label is thus used in figure with the identical or essentially identical structure of preceding embodiment. The unique distinction of shell and tube exchanger 300 is introduced below.

Unlike above-mentioned shell and tube exchanger 100, it is additionally provided with inside the tube body 10 of the shell and tube exchanger 300 Collecting board 13 positioned at 20 lower section of the condenser pipe 30 and recovery tubes.It is then boundary with collecting board 13,10 inside of tube body is had Space be divided into condensing zone 11 above collecting board 13 and cross cold-zone 12 positioned at 13 lower section of collecting board.The mistake Cold-zone 12 is provided with condensation supercooling tube 130 and recuperation of heat supercooling tube 120.And the collecting board 13 is not by condensing zone 11 and supercooling Area 12 is completely isolated.In fact, collecting board 13 is standing to be equipped with the channel for crossing cold-zone 12 for the refrigerant flow direction in condensing zone 11 (not shown).

It is cold that the condensation supercooling tube 130 carries out depth when shell and tube exchanger 300 is in refrigeration mode, to refrigerant But.And it is cold to carry out depth to refrigerant when shell and tube exchanger 300 is in heat recovery mode for the recuperation of heat supercooling tube 130 But.The condensation supercooling tube 130 can be shared with above-mentioned condenser pipe 30 condensation chamber or condensation collector, can not also share condensation chamber or Condense collector.Equally, the recuperation of heat supercooling tube 120 can share heat recovery chamber or recuperation of heat afflux with above-mentioned recovery tubes 20 Device can not also share heat recovery chamber or recuperation of heat collector.

Further, similar above-mentioned condenser pipe 30 and heat can be used with recuperation of heat supercooling tube 120 in the condensation supercooling tube 130 The similar mode of recovery tube 20 is configured, for example, being intervally arranged.For another example, supercooling tube 130 and recuperation of heat supercooling tube are condensed 120, which can be intervally arranged up and down or control, is intervally arranged.Alternatively, the condensation supercooling tube 130 or recuperation of heat supercooling tube 120 are in letter V-type, inverted V type, the mode of alphabetical one of X-type and diamond shape or multiple combinations are arranged.For details, reference can be made to shown in above-mentioned Fig. 1 to 6D Associated description in shell and tube exchanger 100, is not repeated herein.Wherein, described cross condenses 130 He of supercooling tube in cold-zone 12 The arrangement mode of recuperation of heat supercooling tube 120, can be identical with condenser pipe 30 in condensing zone 11 and the arrangement mode of recovery tubes 20, It can also be different.

It arranges in this way, compared to supercooling tube 130 will be condensed and recuperation of heat supercooling tube 120 is separately arranged in supercooling It, can in the case where the quantity for condensing supercooling tube 130 and recuperation of heat supercooling tube 120 is basically unchanged for the left and right sides in area So that crossing the height decline of cold-zone, the charging amount of refrigerant is advantageously reduced.

It should be noted that the refrigerant being passed through in condensation supercooling tube 130, temperature will be generally below institute in condenser pipe 30 It is passed through the temperature of refrigerant.Equally, the refrigerant that recuperation of heat supercooling tube 120 is passed through, temperature will be generally below in recovery tubes 20 The temperature of be passed through refrigerant.

When shell and tube exchanger 300 is in operation, entered cold-zone 12, quilt through the preliminary refrigerant after cooling of condensing zone 11 The condensation supercooling tube 130 in cold-zone 12 or the cooling of 120 depth of recuperation of heat supercooling tube are crossed, to have specific or required supercooling Degree.Later, refrigerant is flowed out from refrigerant outlet 50, flows to electric expansion valve, evaporator etc..Equally, it exchanges heat in shell-tube type In 300 operational process of device, the condensation supercooling tube 130 or recuperation of heat supercooling tube 120 not exchanged heat between refrigerant play refrigerant To the effect of secondary distribution, to improve the uniformity of refrigerant, be conducive to the efficiency for improving the cooling refrigerant of depth, and made The temperature field of cold-zone is more uniform, to improve the degree of supercooling of refrigerant outlet.Meanwhile it solving as heat recovering heat exchanger or cold When condenser, the problem of refrigerant outlet falseness degree of supercooling.

In addition, the application also provides a kind of refrigeration system.The refrigeration system includes above-mentioned shell and tube exchanger.

Optionally, the refrigeration system is air-conditioning.

The above is only the preferred embodiment of the utility model, not does in any form to the utility model Limitation, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still It is within the scope of the technical solutions of the present invention.

Claims (14)

1. a kind of shell and tube exchanger, which is characterized in that the shell and tube exchanger includes the internal tube body with space, described Tube body top is provided with refrigerant inlet, and the tube body lower part is provided with refrigerant outlet；

It is provided with condenser pipe and recovery tubes in the space, passes through the refrigeration in condenser pipe and recovery tubes on the outside of one Agent can flow through the outside of another one in condenser pipe and recovery tubes.

2. shell and tube exchanger as described in claim 1, which is characterized in that the condenser pipe and recovery tubes are intervally arranged.

3. shell and tube exchanger as claimed in claim 2, which is characterized in that the condenser pipe and recovery tubes are between the upper and lower every row Cloth or left and right are intervally arranged.

4. shell and tube exchanger as claimed in claim 2, which is characterized in that the portion in the condenser pipe or the recovery tubes Divide and arranges in a manner of alphabetical V-type, inverted V type, alphabetical one of X-type and diamond shape or multiple combinations.

5. shell and tube exchanger as described in claim 1, which is characterized in that be additionally provided in the space positioned at the condensation Collecting board below pipe and recovery tubes and condensation supercooling tube and recuperation of heat supercooling tube below collecting board.

6. shell and tube exchanger as claimed in claim 5, which is characterized in that on the condensation supercooling tube and recuperation of heat supercooling tube Under be intervally arranged or left and right be intervally arranged；Or,

Part in the condensation supercooling tube or recuperation of heat supercooling tube is in alphabetical V-type, inverted V type, alphabetical one of X-type and diamond shape Or the mode of multiple combinations is arranged.

7. the shell and tube exchanger as described in any one of claim 1 to 6, which is characterized in that the heat exchanger further includes position The first collector and the second collector in tube body both ends；First collector includes the first mutually isolated condensation collecting chamber With the first recuperation of heat collecting chamber, second collector includes mutually isolated the second condensation collecting chamber and the second recuperation of heat afflux Room；The condenser pipe connection first condensation collecting chamber and the second condensation collecting chamber, described in the recovery tubes connection First recuperation of heat collecting chamber and the second recuperation of heat collecting chamber.

8. shell and tube exchanger as claimed in claim 7, which is characterized in that the first condensation collecting chamber and the first recuperation of heat Room uses flanged joint；The second condensation collecting chamber and the second heat recovery chamber use flanged joint；Or,

The heat exchanger further includes the boss for being set to the first collector inner sidewall and the partition for being set to boss；The heat exchange Device further includes the boss for being set to the second collector inner sidewall and the partition for being set to boss.

9. shell and tube exchanger as claimed in claim 7, which is characterized in that the first condensation collecting chamber and the second condensation collection One in flow chamber is provided with condensation import, another is provided with condensate outlet；

One in the first recuperation of heat collecting chamber and the second recuperation of heat collecting chamber is provided with recuperation of heat import, another setting There is recuperation of heat outlet.

10. shell and tube exchanger as claimed in claim 7, which is characterized in that the first condensation collecting chamber is divided into mutually isolated Upper condensing chamber and lower condensation chamber, the upper condensing chamber is provided with condensate outlet, and the lower condensation chamber is provided with condensation import；

The first recuperation of heat collecting chamber is divided into mutually isolated upper heat recovery chamber and lower heat recovery chamber, the upper heat recovery chamber It is provided with recuperation of heat outlet, the lower heat recovery chamber is provided with recuperation of heat import.

11. shell and tube exchanger as claimed in claim 7, which is characterized in that the first condensation collecting chamber is divided into mutually isolated Upper condensing chamber and lower condensation chamber, the upper condensing chamber is provided with condensate outlet, and the lower condensation chamber is provided with condensation import；

One in the first recuperation of heat collecting chamber and the second recuperation of heat collecting chamber is provided with recuperation of heat import, another setting There is recuperation of heat outlet.

12. shell and tube exchanger as described in claim 1, which is characterized in that the recovery tubes are only distributed in the space Upper area.

13. a kind of refrigeration system, which is characterized in that the refrigeration system includes such as the described in any item shells of claim 1 to 12 Pipe heat exchanger.

14. refrigeration system according to claim 13, which is characterized in that the refrigeration system is air-conditioning.