CN104956162B - Shell-and-tube evaporator - Google Patents
Shell-and-tube evaporator Download PDFInfo
- Publication number
- CN104956162B CN104956162B CN201280078118.5A CN201280078118A CN104956162B CN 104956162 B CN104956162 B CN 104956162B CN 201280078118 A CN201280078118 A CN 201280078118A CN 104956162 B CN104956162 B CN 104956162B
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- shell
- evaporator
- distributor
- tube
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention discloses the shell-and-tube evaporator for refrigeration system (100,400).The evaporator (100,400) refrigerant case (130,230) is included, the refrigerant case, which has, to be configured to help refrigerant being evenly distributed to evaporator (100,400) the feature in heat exchanger tube (120,420).The shell side of evaporator (100,400) includes sealing plate (150,450), to help to reduce process fluid around the tube bank (119,419) in shell side.Presently disclosed structure can help to increase the efficiency and reliability of evaporator (100,400), and can help to reduce the size of evaporator (100,400).
Description
Technical field
The present invention relates to heating, heating ventilation and air-conditioning (" HVAC ") system, and more particularly, to HVAC refrigeration systems
Shell-and-tube evaporator.Generally, described system and method are controlled for example available for the stream in the shell-and-tube evaporator of refrigerator
Body (for example, refrigerant and process fluid).
Background technology
Refrigerator (such as HVAC system) typically may include compressor, condenser and evaporator, to form refrigerating ring
Road.Compressor is typically set to compression refrigerant steam, and condenser is typically set to make refrigerant vapour condense into liquid
State refrigerant.Evaporator is typically set to make refrigerant liquid evacuator body and adjusts process fluid such as water.
The evaporator of refrigerator can be shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is generally included in the shell of sealing
Heat exchanger tube.Shell-and-tube evaporator typically has shell side and tube side.(such as dry type expansion evaporator), shell side in some evaporators
It can be configured to transport process fluid, such as water；And tube side can be configured to transport refrigerant.Evaporator can be configured to help
The heat exchange between the process fluid in refrigerant and shell side in tube side.For ease of refrigerant is dispensed into heat exchanger tube, steam
Hair device has dispenser assembly generally in refrigerant case.
The content of the invention
The present invention discloses the embodiment of shell-and-tube evaporator.In certain embodiments, evaporator may include shell side and pipe
Journey.In certain embodiments, shell side is configured to receive process fluid；And tube side is configured to receive refrigerant.In some realities
Apply in example, shell-and-tube evaporator can be configured to the spy with the tube side that can help to refrigerant being evenly distributed to evaporator
Sign.
Some evaporators may include internal baffle.The internal baffle is generally set to guide process fluid steaming
Send out in the shell side of device and flow.Tube bank is bypassed at a certain region that process fluid may be between tube bank and the inner surface of shell.Technique
Fluid is also possible to around the internal baffle between deflection plate and the inner surface of shell.In certain embodiments, evaporator can be set
Be set to can help to prevent process fluid around between the inner surface of internal baffle and the shell of evaporator and tube bank with
Feature between the inner surface of shell.
In certain embodiments, evaporator may include refrigerant case, and the refrigerant case includes refrigerant inlet and refrigeration
Agent exports.Evaporator may include refrigerant allocation component, and the allocation component includes distributor box and multiple refrigerant distributors.
In some embodiments, distributor box can be configured to cover refrigerant inlet, and refrigerant inlet can pass through distributor box and multiple systems
Refrigerant distributor is in fluid communication.In certain embodiments, multiple refrigerant distributors relative to refrigerant inlet along distributor box
One direction is laterally set.
In certain embodiments, each of multiple refrigerant distributors includes dome-shaped part, the dome-shaped part
On stylolitic part, and dome-shaped part and stylolitic part are configured to that there are multiple holes to distribute refrigerant.
In certain embodiments, dome-shaped part may include relatively closed end sections.In certain embodiments, relatively
The end sections of closure can be configured to non-porous.In certain embodiments, multiple refrigerant distributors can have hole, the hole quilt
It is arranged to allow refrigerant to flow out allocation component.
In certain embodiments, the refrigerant outlet of refrigerant case and refrigerant inlet are separated by separator.Separator can
Tube sheet with evaporator between refrigerant outlet and refrigerant inlet forms the sealing of impermeable refrigerant.
In certain embodiments, refrigerant case may include lower partition, and the lower partition may be disposed at refrigerant and enter
The position of mouthful lower section, relative to refrigerant inlet closer to the bottom of evaporator.In certain embodiments, lower partition can be with pipe
Plate shape is into gap.
In certain embodiments, evaporator may include multiple internal baffles, and each internal baffle can have and cut
Except region, the cut-away area is provided between deflection plate and the inner surface of evaporator and forms space.Lateral cut-away area
It is configured to accommodate sealing plate, the whole length of the sealing plate extension evaporator.In certain embodiments, sealing plate is set
Into the sealing that the first impermeable process fluid is formed between sealing plate and the inner surface of shell, and in sealing plate and multiple internal foldings
The sealing of the second impermeable process fluid is formed between each of flowing plate.By sealing plate and the inner surface and internal baffle shape of shell
Into sealing can help to prevent process fluid from bypassing between internal baffle and the inner surface of shell.Sealing plate can also aid in
Make process fluid discharge that there is the region of relatively low heat exchange efficiency due to lacking heat exchanger tube.
The further feature and aspect of embodiment can be become apparent by following detailed description and accompanying drawings.
Brief description of the drawings
Referring now to accompanying drawing, wherein identical reference throughout represents corresponding part.
Fig. 1 is the perspective view of the biopsy cavity marker devices and decomposition according to the evaporator of one embodiment.It should be pointed out that Fig. 1 is omitted
Some heat exchanger tubes.
Fig. 2A -2E show the different aspect of the refrigerant case according to another embodiment.Fig. 2A is front perspective view.Fig. 2 B
It is to remove the front perspective view after refrigerant allocation component.Fig. 2 C show the perspective view of refrigerant allocation component.Fig. 2 D show
The front view of refrigerant case is gone out.Fig. 2 E are the sectional views splitted by the line 2E-2E in Fig. 2 D.
Fig. 3 shows another embodiment of refrigerant distributor.
Fig. 4 A-4C show the different aspect of the evaporator according to another embodiment.Fig. 4 A, which are shown, removes evaporator
Perspective view after shell.Fig. 4 B show the internal baffle of evaporator.Fig. 4 C show the front cross-section view of evaporator.
Embodiment
The evaporator of a variety of shell-and-tubes has been developed.Generally, shell-and-tube evaporator is included through the sealing of evaporator
The heat exchanger tube of shell.Heat exchanger tube is configured to transport a kind of fluid, forms tube side.Shell is configured to transport one other fluid, is formed
Shell side.Tube side and shell side can form heat exchange relationship, to contribute to the heat exchange between two kinds of fluids.In some evaporators,
Such as dry type expansion evaporator, shell side is configured to transport process fluid, and tube side is configured to transport refrigerant.
Embodiments disclosed herein is related to shell-and-tube evaporator, such as dry type expansion evaporator.In certain embodiments,
Tube side is configured to transport refrigerant；And shell side is configured to transport process fluid, such as water.In certain embodiments, evaporate
Device may include dispenser assembly, and the dispenser assembly, which has, to be configured to help refrigerant evenly distributing changing into tube side
The feature of heat pipe.In certain embodiments, shell side may include sealing plate, with contribute to reduce process fluid shell inner surface it
Between and/or internal baffle and shell side in shell inner surface between around tube bank.Embodiments disclosed herein can help to increase
The efficiency and reliability of big evaporator, and can help to reduce the size of evaporator.
Referring to the accompanying drawing for forming a present invention part, wherein being illustrated enforceable embodiment by shown implementation.
Term " fluid " is general terms, can refer to refrigerant and/or process fluid, such as water.It should be appreciated that term used herein
It is intended to describe drawings and examples, and is not construed as limiting the protection domain of the application.
Fig. 1 shows the biopsy cavity marker devices according to the shell-and-tube evaporator 100 of one embodiment and the view of decomposition.Evaporator
100 include shell 110, and the shell 110 has the end 114 of first end 112 and second.Shell 110 includes process liquid inlets 116 and technique
Fluid issuing 118, form shell side.Process liquid inlets 116 are configured to receive process fluid, such as water；And process fluid goes out
Mouthfuls 118, which are configured to the process fluid after guide adjustment, leaves shell 110.Generally, process liquid inlets 116 are closer to first end
112, and Process fluid outlet 118 is closer to the second end 114.It should be appreciated that in certain embodiments, Process fluid outlet can be more
Close to first end 112, and Process fluid outlet can be closer to the second end 114 of evaporator 100.
Tube bank 119 including multiple heat exchanger tubes 120 passes through first end 112 along the longitudinal direction limited by the length L of shell 110
And the second shell 110 between end 114.The heat exchanger tube 120 of tube bank 119 forms tube side.The openend 122 of heat exchanger tube 120 is connected to
Close to the tube sheet 140 of the first end 112 of shell 110.Openend 122 forms entrance area 122a and exit region on tube sheet 140
122b.Entrance area 122a is generally set to receive refrigerant and refrigerant is assigned into heat exchanger tube 120.Exit region 122b
It is generally set to guide refrigerant to leave heat exchanger tube 120.Evaporator 100 also includes refrigerant case 130, the refrigerant case
130 are configured to be connected to tube sheet 140.Refrigerant case 130 is configured to refrigerant being dispensed into heat exchanger tube 120 and guides refrigeration
Heat exchanger tube 120 is left in agent.
Evaporator 100 also includes sealing plate 150, and the sealing plate 150 is along the longitudinal direction limited by the length L of shell 110
Through shell 110.Sealing plate 150 is disposed in contact to the internal baffle 152 inside shell 110.Internal baffle 152 can be set
Into the process fluid flowing inside guiding shell 110.Sealing plate 150 can help to fill tube bank 119 and the inner surface 190 of evaporator
Between region, and from the region discharge process fluid.Sealing plate 150 can also aid in internally deflection plate 152 and shell 110 it
Between form the sealing of impermeable process fluid, and/or contribute to discharge shell 110 inside process fluid.
Generally, each heat exchanger tube 120 begins with the entrance area 122a of tube sheet 140, along the longitudinal direction side limited by length L
To through shell 110, and then make " u "-shaped bending 121 at the second end 114 of shell 110.Heat exchanger tube 120 is then again along by growing
The longitudinal direction that degree L is limited passes through shell 110, then terminates in the exit region 122b of tube sheet 140.In certain embodiments, exchange heat
Pipe is continuously to manage, and can be referred to as " u "-shaped pipe.
In evaporator 100, being generally directed toward the region of the bottom 111 of shell 110 does not have any heat exchanger tube 120, this general class
It is similar to towards a white space 122c on the tube sheet 140 of the bottom 111 of shell 110.
Refrigerant case 130 has refrigerant inlet 132 and refrigerant outlet 134, wherein the refrigerant inlet 132 and pipe
The entrance area 122a of plate 140, which is formed, to be in fluid communication, and the exit region 122b shapes of the refrigerant outlet 134 and tube sheet 140
Into fluid communication.Refrigerant inlet 132 is configured to receive refrigerant and be assigned to refrigerant by entrance area 122a to change
Heat pipe 120.Refrigerant outlet 134 is configured to receive the refrigerant for flowing out heat exchanger tube 120 by exit region 122b.
At work, refrigerant can be dispensed into heat exchange by the refrigerant inlet 132 at the first end 112 of shell 110
Pipe 120, along heat exchanger tube 120 is flowed through by the length L longitudinal directions limited, then revolution bends 121 by " u "-shaped, and wears again
Cross heat exchanger tube 120.Refrigerant then flow back into the first end 112 of shell 110, and can be collected and be conducted through refrigerant outlet
134 leave shell 110.
Process fluid can be introduced into shell 110 by process liquid inlets 116, then along the longitudinal direction limited by length L
Flowing, and it is brought out shell from Process fluid outlet 118.Process fluid flowing direction is typically guided by internal baffle 152.Utilize
Internal baffle 152 inside evaporator 100 is usually known in this area to guide process fluid to flow.In shell 110
Refrigerant in process fluid and heat exchanger tube 120 can form heat exchange relationship, the heat contributed between process fluid and refrigerant
Exchange.
Region between the outermost heat exchanger tube 120 of tube bank 119 and the inner surface 190 of evaporator 100 may be not any
Heat exchanger tube 120, because the installation heat exchanger tube 120 of inner surface 190 close to evaporator 100 is probably difficult.Due to described
The typically no any heat exchanger tube 120 in region, the heat exchanger effectiveness of process fluid may be relatively low in this region.Sealing plate 150 can
Help to fill the region of this relatively low heat exchanger effectiveness and process fluid is discharged into the region.(referring to Fig. 4 C on space and
More discussion of sealing plate.
Process fluid is also possible to bypass internal partition 152 between the inner surface 190 and internal baffle 152 of shell.Sealing
The process fluid that plate 150 can also aid in inside discharge shell 110.Sealing plate can help to increase between process fluid and refrigerant
Heat exchanger effectiveness.
Fig. 2A -2E show the different aspect of the refrigerant case 230 according to one embodiment.As shown in Figure 2 A and 2B, make
Cryogen case 230 may include head 231, separator 233, lower partition 235 and refrigerant allocation component 260, the refrigerant point
Distribution assembly 260 is arranged between separator 233 and lower partition 235.Refrigerant case 230 has refrigerant inlet 232 and refrigeration
Agent outlet 234.
Refrigerant case 230 can be configured to work together with the evaporator 100 shown in Fig. 1.Referring to Fig. 1,2A and 2B, work as group
After dress, separator 233 is generally set to be formed between entrance area 122a and exit region 122b with tube sheet 140 impermeable
The sealing of refrigerant.The sealing of the impermeable refrigerant formed by separator 233 and tube sheet 140 can help to separation and enter from refrigerant
Mouth 232 flows into the refrigerant on heads 231 and the refrigerant on head 231 is flowed out from refrigerant outlet 234.
As shown in Fig. 2A and 2C, refrigerant allocation component 260 includes distributor box 262 and at least one refrigerant distributor
264.Shown embodiment is arranged on distributor box 262 including two refrigerant distributors 264.It should be appreciated that refrigerant point
The quantity of orchestration 264 can be with more than two.
As shown in Figure 2 B, the distributor box 262 of the especially refrigerant allocation component 260 of refrigerant allocation component 260 is set
Into the opening 232a of covering refrigerant inlet 232.As illustrated, distributor box 262 can be configured to rectangular profile.It should manage
Solution, distributor box 262 can be the other shapes in addition to rectangle.When refrigerant flows into refrigerant inlet 232, the speed of refrigerant can
Can be higher.Distributor box 262 can help to reduce the speed of refrigerant.
Refrigerant distributor 264 has hole 265, and the hole 265 is configured to allow refrigerant from the tap hole of distributor box 262
265.After assembling, the opening 232a of refrigerant distributor 264 and refrigerant inlet 232 is arranged on relative to distributor box 262
Opposite side.Refrigerant distributor 264 be configured to point to tube sheet (such as tube sheet 140 in Fig. 1) entrance area (for example,
Entrance area 122a in Fig. 1).Refrigerant inlet 232, distributor box 262 and refrigerant distributor 264 can be in fluid communication.System
Cryogen can be introduced into refrigerant inlet 232 and the hole 265 of refrigerant distributor 264 is flowed out by distributor box 262.
Refrigerant distributor 264 can be on the direction that distributor box 262 is limited by length L2 relative to refrigerant inlet 232
The 232a biasings that are open are set.Refrigerant distributor 264 is may be disposed on the longitudinal direction limited by length L2 than opening 232
Relative position more lean on side.When refrigerant flows into distributor box 262, distributor box 262 not only can help to reduce refrigerant
Speed, it can also aid in the transverse distribution refrigerant on the longitudinal direction limited by length L2.Refrigerant can then flow into distribution
Device 264, to be flowed out from the hole 265 of refrigerant distributor 264.
At work, after the hole 265 of refrigerant outflow refrigerant distributor 264, refrigerant can subsequently flow into heat exchange
Manage (such as heat exchanger tube 120 in Fig. 1).
Referring to Fig. 1,2A and 2D, lower partition 235 is generally set to help to prevent refrigerant by the sky to tube sheet 140
White region 122c is dispensed.After assembling, lower partition 235 is typically provided at just in the entrance area 122a of tube sheet 140
Below.
Referring to Fig. 2 E, the section splitted along the line 2E-2E in Fig. 2 D is shown.Lower partition 235 is provided in bottom
There is clearance G 2 between dividing plate 235 and the interface 239 on head 231.
Referring to Fig. 1,2A, 2D and 2E, when head 231 fits together with the evaporator 100 for example shown in Fig. 1, due to
Clearance G 2, lower partition 235 do not contact tube sheet 140.This is different from separator 233, and the separator is configured to and tube sheet 140
Form the sealing of impermeable refrigerant.
Clearance G 2 can be smaller, e.g., from about 3mm so that clearance G 2 does not typically allow substantial amounts of refrigerant to flow through clearance G 2.
Therefore, clearance G 2 does not typically interfere the heat exchanger tube being dispensed into refrigerant in entrance area 122a.
In G2 very close to each other evaporator, lower partition 235 may form gas tight seal with tube sheet 140.As a result, one
A little air can be trapped in space 238.In the course of work of evaporator, the air and refrigerant inlet that are trapped in space 238
Pressure differential between region (for example, entrance area 122a in Fig. 1) may cause lower partition 235 to deform.It is trapped in space 238
In air may spill, reduce the performance of evaporator.When evaporator assembles, clearance G 2 can help to discharge from space 280
Air, such as by using vacuum.
Referring to Fig. 2 C and 2D, height H2 direction of the shown refrigerant distributor 264 along refrigerant distributor 264 includes post
Shape part 264a and dome-shaped part 264b.Stylolitic part 264a and dome-shaped part 264b is each arranged to have multiple holes
265.Hole 265 in stylolitic part 264a and dome-shaped part 264b can be set in a row at various height along height H2.
In certain embodiments, the quantity in the hole 265 often arranged in stylolitic part 264a is probably identical, and dome-shaped portion
The quantity for dividing in 264b the hole 265 often arranged is probably different.It should be understood, however, that the setting in hole 265 is exemplary.
Shown hole 265 typically has round-shaped.This is exemplary.It should be appreciated that hole 265 can be configured to have
Other shapes, such as triangle or flute profile.
Dome-shaped part 264b end sections 269 can be configured to be relatively closed.For example, end sections 269 can
It is configured to not include any hole 265.Relatively closed end sections 269 can help to release refrigerant along stylolitic part
The hole 265 that 264a and dome-shaped part 264b is set.The structure can help to guide refrigerant with being more uniformly distributed.
Refrigerant allocation component 260 can be configured to have multiple refrigerant distributors 264.In an illustrated embodiment,
The quantity of refrigerant distributor 264 is two, it will be appreciated that quantity can be with more than two.It should be appreciated that made on distributor box 262
The setting of refrigerant distributor 264 can change, to realize evenly distributing for such as refrigerant.
Fig. 3 shows another embodiment of refrigerant distributor 364.As illustrated, refrigerant distributor 364 is set
Into with stylolitic part 364a.Refrigerant distributor 364 is configured to do not have dome-shaped part, such as the dome shown in Fig. 2 C
Shape part 264b.Refrigerant distributor 364 can be configured to the flat-top 369 with the closure in no any hole.Stylolitic part
364a can have multiple holes 365 to help to distribute refrigerant.
It should be appreciated that the structure of the refrigerant distributor as shown in Fig. 2 C and 3 is exemplary.Refrigerant distributor can quilt
It is arranged to other shapes or structure.For example, the dome-shaped part 264b shown in Fig. 2 C can be configured to taper.The size in hole
Can also be different with position.Generally, refrigerant distributor and hole (including the shape of refrigerant distributor, the quantity of distributor and
Structure and the size and location in hole) structure can be configured to help to evenly distribute refrigerant into heat exchanger tube.In some realities
Apply in example, refrigerant distributor can be configured to realize a desired pressure drop during through hole.In some implementations
In example, allocation component may not include any refrigerant distributor；But distributor box may include hole to distribute refrigerant in itself.
Computer simulation can be used for the structure for assisting in refrigerant distributor and hole.
Fig. 4 A show the evaporator of the shell 410 (as shown in Figure 4 C) for removing evaporator 400 according to one embodiment
400.Evaporator 400 includes tube sheet 440, and the tube sheet 440 is connected to tube bank 419.Tube bank 419 is made up of multiple heat exchanger tubes 420.
Evaporator 400 also includes multiple internal baffles 452, and the multiple internal baffle 452 is along the length L4 by evaporator 400
The longitudinal direction (length L4 can be similar to the length L1 of evaporator 100 as shown in Figure 1) of restriction is spaced apart.
Evaporator 400 includes the sealing plate 450 positioned at multiple internal baffle sides.Sealing plate 450 prolongs along length L4
Stretch.As shown in Figure 4 A, sealing plate 450 may extend away the whole length L4 of evaporator 400 (as shown in figure 1, sealing plate 150 is extensible
The whole length L1 of evaporator 100).
Fig. 4 B show the front view of an internal baffle 452.Internal baffle 452 includes multiple holes 455, the hole
455 are configured to accommodate heat exchanger tube 420.First excision of the also both sides including internally positioned deflection plate 452 of internal baffle 452
Region 456a and the second cut-away area 456b.Cut-away area 456a and 456b correspond generally to usually not heat exchanger tube 420 and passed through
Region.
Referring to Fig. 4 C, the front cross-section view of evaporator 400 is shown.Evaporator includes shell 410.Internal baffle 452 is logical
Often shaped according to the inner surface 490 of shell 410, so that internal baffle 452 can match in the inner tight of shell 410.
Referring to Fig. 1,4A and 4C, internal baffle 452 can be used for the shell of evaporator (for example, evaporator 100 in Fig. 1)
Journey, to guide flow of process fluid.Flow of process fluid flows into shell 110 from process liquid inlets 116.Internal baffle 452 is set
Guiding process fluid is set to form serpentine shape fluid stream.Serpentine shape fluid stream can help between fluid stream and heat exchanger tube 120
Heat exchange be known.
Sometimes, the inner surface 190 of shell 110 and internal baffle 452 may not form the sealing of impermeable process fluid, technique
Fluid internally can bypass internal baffle 452 in the gap between deflection plate 452 and the inner surface 190 of shell 110.As a result, one
Division technique fluid may be internally between deflection plate 452 and the inner surface 190 of shell 110 gap take a shortcut, around serpentine shape stream
Body stream, cause the not benign reduction of heat exchanger effectiveness.
In evaporator 400, it is generally difficult to for heat exchanger tube 420 to be placed on the inner surface 190 for being in close proximity to shell 140.Cut
Except region 456a and 456b are generally corresponded to close to the region of the inner surface 190 of shell 410, it is difficult to place heat exchanger tube in the region
420.Because no heat exchanger tube 420 passes through the region, heat exchanger effectiveness in process fluid and heat exchanger tube 420 between refrigerant compared with
It is low.In the evaporator for example shown in Fig. 1, serpentine shape fluid stream is caused by multiple deflection plates 152, corresponding to cut-away area
Process fluid in 456a and 456b region generally receives less heat exchange than other regions.Therefore may want to institute
State the process fluid discharge in region.
Cut-away area 456a and 456b are configured to receive sealing plate 450.Sealing plate 450 shell 410 inner surface 490 with
Extend between cut-away area 456a and 456b, and fill up cut-away area 456a and 456b.
Sealing plate 450 includes the first side 450a and the second side 450b, wherein the first side 450a is configured to meet shell
The shape of 410 inner surface 490, and the second side 450b is configured to the shape for meeting cut-away area 456a, 456b.Cut-away area
456a and 456b bottom 457a and 457b is each configured to respectively close to outermost the side opening 455a and 455b in hole 455, institute
Hole 455 is stated to be configured to accommodate heat exchanger tube 420.Therefore, sealing plate 450 can be substantially filled with tube bank 419 and the inner surface of shell 410
Region between 490.Sealing plate 450 can also form impermeable technique with the inner surface 490 of cut-away area 456a, 456b and shell 410
The sealing of fluid.
In not having traditional evaporator of cut-away area 456a, 456b and sealing plate 450, process fluid can stay in correspondingly
In the region of sealing plate 450.Process fluid in that region has relatively low (or not having) heat transfer efficiency, because in these areas
Heat exchanger tube is not present in domain.Sealing plate 450 can help to process fluid discharging these regions, increase the heat transfer of evaporator 400
Efficiency.
In traditional evaporator without cut-away area 456a, 456b and sealing plate 450, internal baffle may not
The sealing of impermeable process fluid is formed with the inner surface of shell.Therefore, process fluid can shell inner surface and internal baffle it
Between bypass internal baffle.Because sealing plate 450 forms impermeable process fluid between cut-away area 456a, 456b and shell 410
Sealing, sealing plate 450 can also aid in reduce process fluid bypass internal baffle 452 undesirable effect.
On foregoing explanation, it will be appreciated that can enter in detail in the case of without departing from protection scope of the present invention
Row change.Specification and depicted embodiment should be considered to be exemplary, and the true scope and spirit of the invention should be by weighing
The wide in range implication that profit requires represents.
Claims (10)
1. a kind of shell-and-tube evaporator, the shell-and-tube evaporator includes shell, and the shell has first end and the second end, the pipe
Shell-type evaporator includes multiple pipes, the multiple pipe along by the longitudinal direction that the length of the shell limits through the first end with
The shell between second end, the shell-and-tube evaporator include：
Shell side, the shell side are configured to receive process fluid；
Tube side, the tube side are configured to receive refrigerant；
Refrigerant case, the refrigerant case include refrigerant inlet；
Refrigerant allocation component, the refrigerant allocation component include distributor box and multiple refrigerant distributors, the distributor box
With the longitudinal direction limited by the length of distributor box；
Wherein, the distributor box is configured to cover refrigerant inlet, and the refrigerant inlet distributes with the multiple refrigerant
Device is in fluid communication, and the multiple refrigerant distributor is laterally set in a longitudinal direction relative to refrigerant inlet,
Wherein, each of the multiple refrigerant distributor includes dome-shaped part, and the dome-shaped part is arranged on column
On part, wherein the dome-shaped part and stylolitic part are configured to have multiple holes.
2. shell-and-tube evaporator according to claim 1, wherein：The dome-shaped part includes non-porous end sections.
3. a kind of shell-and-tube evaporator, the shell-and-tube evaporator includes shell, and the shell has first end and the second end, the pipe
Shell-type evaporator includes multiple pipes, the multiple pipe along by the longitudinal direction that the length of the shell limits through the first end with
The shell between second end, the shell-and-tube evaporator include：
Shell side, the shell side are configured to receive process fluid；
Tube side, the tube side are configured to receive refrigerant；
Refrigerant case, the refrigerant case include refrigerant inlet；
Refrigerant allocation component, the refrigerant allocation component include distributor box and multiple refrigerant distributors, the distributor box
With the longitudinal direction limited by the length of distributor box；
Wherein, the distributor box is configured to cover refrigerant inlet, and the refrigerant inlet distributes with the multiple refrigerant
Device is in fluid communication, and the multiple refrigerant distributor is laterally set in a longitudinal direction relative to refrigerant inlet,
Wherein, each of the multiple refrigerant distributor includes stylolitic part and the flat-top of closure.
4. shell-and-tube evaporator according to claim 1, in addition to：
Tube sheet；
Refrigerant outlet；
Wherein, the refrigerant outlet and refrigerant inlet are separated by separator, and the separator is in refrigerant outlet and refrigeration
The sealing of impermeable refrigerant is formed between agent entrance with tube sheet.
5. shell-and-tube evaporator according to claim 1, in addition to：
Tube sheet；
Lower partition, the lower partition are arranged under refrigerant inlet, relative to refrigerant inlet towards evaporator
Bottom；
Wherein, lower partition forms gap with tube sheet.
6. shell-and-tube evaporator according to claim 1, in addition to：
Multiple internal baffles；
Sealing plate, the sealing plate extend in the whole length of the evaporator；
Wherein, the side cut that each of the multiple internal baffle is included between internal baffle and the inner surface of shell removes area
Domain, the sealing plate are configured to be located in the cut-away area.
7. shell-and-tube evaporator according to claim 6, wherein：The sealing plate is provided in the interior of sealing plate and shell
The sealing of the first impermeable process fluid is formed between surface, and is formed between each of sealing plate and multiple internal baffles
The sealing of second impermeable process fluid.
8. a kind of refrigerant allocation component of evaporator, the evaporator includes shell, and the shell has first end and the second end, institute
Stating evaporator includes multiple pipes, and the multiple pipe passes through the first end and institute along the longitudinal direction limited by the length of the shell
The shell between the second end is stated, the refrigerant allocation component includes：
Distributor box, the distributor box are configured to cover the refrigerant inlet of evaporator；
Multiple refrigerant distributors；
Wherein, be arranged on relative to the distributor box, the multiple refrigerant distributor on distributor box, positioned at the distribution
The relative side of refrigerant inlet that case is covered；
The distributor box has longitudinal direction, and in a longitudinal direction, the multiple refrigerant distributor is relative to described point
Laterally set with the refrigerant inlet that case is covered；
Each of the multiple refrigerant distributor includes dome-shaped part, and the dome-shaped part is arranged on columnar part and divides it
On, wherein the dome-shaped part and stylolitic part are configured to have multiple holes.
9. refrigerant allocation component according to claim 8, wherein, the dome-shaped part includes non-porous end portion
Point.
10. a kind of refrigerant allocation component of evaporator, the evaporator includes shell, and the shell has first end and the second end,
The evaporator includes multiple pipes, the multiple pipe along by the longitudinal direction that the length of the shell limits through the first end with
The shell between second end, the refrigerant allocation component include：
Distributor box, the distributor box are configured to cover the refrigerant inlet of evaporator；
Multiple refrigerant distributors；
Wherein, be arranged on relative to the distributor box, the multiple refrigerant distributor on distributor box, positioned at the distribution
The relative side of refrigerant inlet that case is covered；
The distributor box has longitudinal direction, and in a longitudinal direction, the multiple refrigerant distributor is relative to described point
Laterally set with the refrigerant inlet that case is covered；
Wherein, each of the multiple refrigerant distributor includes stylolitic part and the flat-top of closure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/087174 WO2014094304A1 (en) | 2012-12-21 | 2012-12-21 | Shell and tube evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104956162A CN104956162A (en) | 2015-09-30 |
| CN104956162B true CN104956162B (en) | 2017-11-21 |
Family
ID=50977582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280078118.5A Active CN104956162B (en) | 2012-12-21 | 2012-12-21 | Shell-and-tube evaporator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104956162B (en) |
| WO (1) | WO2014094304A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241127B (en) * | 2015-11-16 | 2018-02-27 | 珠海格力电器股份有限公司 | Heat exchanger and heat exchange equipment |
| CN106940102A (en) * | 2016-01-04 | 2017-07-11 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger and air conditioning equipment with same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295992A (en) * | 2001-03-28 | 2002-10-09 | Tokyo Radiator Mfg Co Ltd | Heat exchanger |
| CN101907375A (en) * | 2008-01-11 | 2010-12-08 | 江森自控科技公司 | Heat exchanger |
| CN101907376A (en) * | 2009-06-02 | 2010-12-08 | 江森自控楼宇设备科技(无锡)有限公司 | Device for distributing refrigerant in refrigeration system |
| CN201724594U (en) * | 2010-06-10 | 2011-01-26 | 常州爱斯特空调设备有限公司 | Shell-and-tube dry-type U-shaped tube evaporator |
| CN201772808U (en) * | 2010-09-04 | 2011-03-23 | 广东美的电器股份有限公司 | Deflection device of dry type evaporator |
| CN201811640U (en) * | 2010-08-03 | 2011-04-27 | 昆山台佳机电有限公司 | Distributing device of dry evaporator |
| CN202432766U (en) * | 2011-12-20 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Screw dry type evaporator |
| CN203881005U (en) * | 2012-12-21 | 2014-10-15 | 特灵国际有限公司 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222994A (en) * | 1985-07-22 | 1987-01-31 | Toshiba Corp | Multi-tubular heat exchanger |
-
2012
- 2012-12-21 WO PCT/CN2012/087174 patent/WO2014094304A1/en active Application Filing
- 2012-12-21 CN CN201280078118.5A patent/CN104956162B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295992A (en) * | 2001-03-28 | 2002-10-09 | Tokyo Radiator Mfg Co Ltd | Heat exchanger |
| CN101907375A (en) * | 2008-01-11 | 2010-12-08 | 江森自控科技公司 | Heat exchanger |
| CN101907376A (en) * | 2009-06-02 | 2010-12-08 | 江森自控楼宇设备科技(无锡)有限公司 | Device for distributing refrigerant in refrigeration system |
| CN201724594U (en) * | 2010-06-10 | 2011-01-26 | 常州爱斯特空调设备有限公司 | Shell-and-tube dry-type U-shaped tube evaporator |
| CN201811640U (en) * | 2010-08-03 | 2011-04-27 | 昆山台佳机电有限公司 | Distributing device of dry evaporator |
| CN201772808U (en) * | 2010-09-04 | 2011-03-23 | 广东美的电器股份有限公司 | Deflection device of dry type evaporator |
| CN202432766U (en) * | 2011-12-20 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Screw dry type evaporator |
| CN203881005U (en) * | 2012-12-21 | 2014-10-15 | 特灵国际有限公司 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014094304A1 (en) | 2014-06-26 |
| CN104956162A (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6701372B2 (en) | Heat exchanger | |
| EP3631336B1 (en) | Heat exchanger | |
| EP2841864B1 (en) | Heat exchanger | |
| US6868695B1 (en) | Flow distributor and baffle system for a falling film evaporator | |
| EP2841868B1 (en) | Heat exchanger | |
| US7421855B2 (en) | Gas trap distributor for an evaporator | |
| CN104334983B (en) | For vaporized media and separation drop and the equipment for cooling medium | |
| JP2018536133A (en) | Cooling system with integral core structure | |
| JP2011080756A (en) | Heat exchanger | |
| CN113227698B (en) | Heat exchanger | |
| US10094601B2 (en) | Condenser | |
| KR20130130322A (en) | Evaporator | |
| JP2007309604A (en) | Evaporator for refrigeration system, and refrigeration system | |
| CN105518391B (en) | Integrated separator-distributor for falling film evaporator | |
| CN113227697A (en) | Heat exchanger | |
| CN104956162B (en) | Shell-and-tube evaporator | |
| FI127511B (en) | An evaporator and a method for vaporizing a substance in an evaporator | |
| KR101379214B1 (en) | Apparatus and method for separating droplets from vaporized refrigerant | |
| CN112283983B (en) | Falling film evaporator and air conditioning system | |
| CN203881005U (en) | Shell and tube evaporator and refrigerant distribution assembly of evaporator | |
| JP6322982B2 (en) | Refrigerant evaporator | |
| JP6850058B2 (en) | Capacitor | |
| CN113195997A (en) | Heat exchanger | |
| KR102088826B1 (en) | Heat exchanger | |
| CN117091322A (en) | Falling film evaporator and refrigerating system comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |