CN203881005U - Shell and tube evaporator and refrigerant distribution assembly of evaporator - Google Patents
Shell and tube evaporator and refrigerant distribution assembly of evaporator Download PDFInfo
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- CN203881005U CN203881005U CN201320828104.2U CN201320828104U CN203881005U CN 203881005 U CN203881005 U CN 203881005U CN 201320828104 U CN201320828104 U CN 201320828104U CN 203881005 U CN203881005 U CN 203881005U
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 159
- 239000012530 fluid Substances 0.000 claims abstract description 85
- 238000000034 method Methods 0.000 claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 238000005192 partition Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 7
- 241001270131 Agaricus moelleri Species 0.000 claims description 5
- 238000009738 saturating Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009827 uniform distribution Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a shell and tube type evaporator and a refrigerant distribution assembly of the evaporator for a refrigerating system. In some embodiments, the evaporator may include a refrigerant box having features configured to help distribute the refrigerant evenly into heat-exchanging tubes of the evaporator. In some embodiments, a shell side of the evaporator may include sealing plates to help reducing process fluid by-passing a tube bundle in the shell side. The configuration disclosed herein may help increase efficiency and reliability of the evaporator, and may help reduce a size of the evaporator.
Description
Technical field
The utility model relates to heating, heating ventilation and air-conditioning (" HVAC ") system, and relates in particular to the cold-producing medium allocation component for shell-and-tube evaporator and the evaporimeter of HVAC refrigeration system.Conventionally, described system and method control example for example, as can be used for the fluid (, cold-producing medium and process fluid) in the shell-and-tube evaporator of refrigerator.
Background technology
Refrigerator (for example, for HVAC system) generally can comprise compressor, condenser and evaporimeter, to form refrigerant circuit.Compressor is generally configured to compressed refrigerant vapor, and condenser is generally configured to make refrigerant vapour condense into liquid refrigerant.Evaporimeter is generally configured to make refrigerant liquid evacuator body such as water of adjusting process fluid.
The evaporimeter of refrigerator can be shell-and-tube heat exchanger, and described shell-and-tube heat exchanger generally includes the heat exchanger tube in the shell of sealing.Shell-and-tube evaporator generally has shell side and tube side.For example, in some evaporimeters (dry type expansion evaporimeter), shell side can be configured to transport process fluid, for example water; And tube side can be configured to transport cold-producing medium.Evaporimeter can be configured to contribute to the heat exchange between the process fluid in cold-producing medium and the shell side in tube side.For ease of cold-producing medium is dispensed into heat exchanger tube, evaporimeter has dispenser assembly conventionally in refrigerant case.
Utility model content
The utility model has disclosed the embodiment of shell-and-tube evaporator.In certain embodiments, shell-and-tube evaporator comprises: shell side, and described shell side is configured to receive process fluid; Tube side, described tube side is configured to receive cold-producing medium; Refrigerant case, described refrigerant case comprises refrigerant inlet; Cold-producing medium allocation component, described allocation component comprises distributor box and multiple refrigerant distributor, described distributor box has the longitudinal direction being limited by the length of distributor box; Wherein, described distributor box is configured to cover refrigerant inlet, described refrigerant inlet and multiple refrigerant distributor fluid communication, and described multiple refrigerant distributor is with respect to refrigerant inlet horizontally set in a longitudinal direction.In certain embodiments, shell-and-tube evaporator can be configured to have the feature that can contribute to cold-producing medium to be evenly distributed to the tube side of evaporimeter.
Some evaporimeters can comprise internal baffle.Described internal baffle is configured to guide process fluid to flow in the shell side of evaporimeter conventionally.Process fluid may a certain location between tube bank and the inner surface of shell be walked around tube bank.Process fluid also may be walked around the internal baffle between deflection plate and the inner surface of shell.In certain embodiments, evaporimeter can be configured to have and can contribute to prevent that process fluid from walking around the feature between the inner surface of shell of internal baffle and evaporimeter and between tube bank and the inner surface of shell.
In certain embodiments, evaporimeter can comprise refrigerant case, and described refrigerant case comprises refrigerant inlet and refrigerant outlet.Evaporimeter can comprise cold-producing medium allocation component, and described allocation component comprises distributor box and multiple refrigerant distributor.In certain embodiments, distributor box can be configured to cover refrigerant inlet, and refrigerant inlet can be by distributor box and multiple refrigerant distributor fluid communication.In certain embodiments, multiple refrigerant distributors with respect to refrigerant inlet the direction horizontally set along distributor box.
In certain embodiments, each of multiple refrigerant distributors comprises dome-shaped part, and described dome-shaped part is positioned on stylolitic part, and dome-shaped part and stylolitic part are configured to have multiple holes with assignment system cryogen.
In certain embodiments, dome-shaped part can comprise relatively closed end sections.In certain embodiments, relatively closed end sections can be configured to atresia.In certain embodiments, multiple refrigerant distributors can have hole, and described hole is configured to allow cold-producing medium to flow out allocation component.
In certain embodiments, the refrigerant outlet of refrigerant case and refrigerant inlet are separated device separately.Separator can form not the sealing of cold-producing medium thoroughly with the tube sheet of evaporimeter between refrigerant outlet and refrigerant inlet.
In certain embodiments, refrigerant case can comprise lower partition, and described lower partition can be arranged on the position of refrigerant inlet below, more approaches the bottom of evaporimeter with respect to refrigerant inlet.In certain embodiments, lower partition can form gap with tube sheet.
In certain embodiments, evaporimeter can comprise multiple internal baffles, and each internal baffle can have cut-away area, and described cut-away area is provided between deflection plate and the inner surface of evaporimeter and forms space.Side direction cut-away area is configured to hold sealing plate, and described sealing plate extends the whole length of evaporimeter.In certain embodiments, sealing plate is provided in and between sealing plate and the inner surface of shell, forms the first not sealing of process fluid thoroughly, and forms the second not sealing of saturating process fluid between each of sealing plate and multiple internal baffles.The sealing being formed by inner surface and the internal baffle of sealing plate and shell can contribute to prevent that process fluid from walking around between internal baffle and the inner surface of shell.Sealing plate also can contribute to make process fluid to discharge due to the region that lacks heat exchanger tube and have lower heat exchange efficiency.
Embodiment of the present utility model has also disclosed a kind of cold-producing medium allocation component of evaporimeter, and the cold-producing medium allocation component of described evaporimeter comprises: distributor box, and described distributor box is configured to cover the refrigerant inlet of evaporimeter; Multiple refrigerant distributors; Wherein, with respect to described distributor box, described multiple refrigerant distributors are arranged on distributor box, are positioned at the relative side of refrigerant inlet covering with described distributor box; Described distributor box has longitudinal direction, and in a longitudinal direction, the refrigerant inlet horizontally set that described multiple refrigerant distributors cover with respect to described distributor box.
The further feature of embodiment and aspect can become apparent by detailed description and accompanying drawing below.
Detailed description of the invention
The evaporimeter of multiple shell-and-tube is developed.Conventionally, shell-and-tube evaporator comprises the heat exchanger tube through the shell of the sealing of evaporimeter.Heat exchanger tube is configured to transport a kind of fluid, forms tube side.Shell is configured to transport one other fluid, forms shell side.Tube side and shell side can form heat exchange relationship, to contribute to two kinds of heat exchanges between fluid.In some evaporimeters, for example dry type expansion evaporimeter, shell side is configured to transport process fluid, and tube side is configured to transport cold-producing medium.
Disclosed embodiment relates to shell-and-tube evaporator, for example dry type expansion evaporimeter herein.In certain embodiments, tube side is configured to transport cold-producing medium; And shell side is configured to transport process fluid, for example water.In certain embodiments, evaporimeter can comprise dispenser assembly, and described dispenser assembly has the feature that is configured to contribute to cold-producing medium uniform distribution to enter the heat exchanger tube of tube side.In certain embodiments, shell side can comprise sealing plate, is walking around tube bank to contribute to reducing process fluid between the inner surface of shell and/or between internal baffle and the inner surface of shell side mesochite.Disclosed embodiment can contribute to increase efficiency and the reliability of evaporimeter herein, and can contribute to reduce the size of evaporimeter.
An embodiment of the present utility model has proposed a kind of shell-and-tube evaporator, and described shell-and-tube evaporator comprises:
Shell side, described shell side is configured to receive process fluid;
Tube side, described tube side is configured to receive cold-producing medium;
Refrigerant case, described refrigerant case comprises refrigerant inlet;
Cold-producing medium allocation component, described allocation component comprises distributor box and multiple refrigerant distributor, described distributor box has the longitudinal direction being limited by the length of distributor box;
Wherein, described distributor box is configured to cover refrigerant inlet, described refrigerant inlet and multiple refrigerant distributor fluid communication, and described multiple refrigerant distributor is with respect to refrigerant inlet horizontally set in a longitudinal direction.
In an embodiment of the present utility model, each of described multiple refrigerant distributors comprises dome-shaped part, and described dome-shaped part is arranged on stylolitic part, and wherein said dome-shaped part and stylolitic part are configured to have multiple holes.
In an embodiment of the present utility model, described dome-shaped part comprises the end sections of atresia.
In an embodiment of the present utility model, each of described multiple refrigerant distributors comprises stylolitic part and closed flat-top.
In an embodiment of the present utility model, described multiple refrigerant distributors have hole, and described hole is configured to allow cold-producing medium to flow out described allocation component.
In an embodiment of the present utility model, described shell-and-tube evaporator also comprises:
Tube sheet;
Refrigerant outlet;
Wherein, described refrigerant outlet and refrigerant inlet are separated device separately, and described separator forms not the sealing of cold-producing medium thoroughly with tube sheet between refrigerant outlet and refrigerant inlet.
In an embodiment of the present utility model, described shell-and-tube evaporator also comprises:
Tube sheet;
Lower partition, described lower partition is arranged under refrigerant inlet, the bottom with respect to refrigerant inlet towards evaporimeter;
Wherein, lower partition and tube sheet form gap.
In an embodiment of the present utility model, described shell-and-tube evaporator also comprises:
Multiple internal baffles;
Sealing plate, described sealing plate extends in the whole length of described evaporimeter;
Wherein, each of described multiple internal baffles comprises the side direction cut-away area between internal baffle and the inner surface of shell, and described sealing plate is configured to be arranged in described cut-away area.
In an embodiment of the present utility model, described sealing plate is provided in and between sealing plate and the inner surface of shell, forms the first not sealing of process fluid thoroughly, and forms the second not sealing of saturating process fluid between each of sealing plate and multiple internal baffles.
In an embodiment of the present utility model, described internal baffle comprises:
Two side direction cut-away areas, wherein each side direction cut-away area is provided between deflection plate and the inner surface of evaporimeter and forms space, and described space is configured to hold the sealing plate that is configured to seal described space.
An embodiment of the present utility model has also proposed a kind of cold-producing medium allocation component of evaporimeter, and the cold-producing medium allocation component of described evaporimeter comprises:
Distributor box, described distributor box is configured to cover the refrigerant inlet of evaporimeter;
Multiple refrigerant distributors;
Wherein, with respect to described distributor box, described multiple refrigerant distributors are arranged on distributor box, are positioned at the relative side of refrigerant inlet covering with described distributor box;
Described distributor box has longitudinal direction, and in a longitudinal direction, the refrigerant inlet horizontally set that described multiple refrigerant distributors cover with respect to described distributor box.
In an embodiment of the present utility model, each of described multiple refrigerant distributors comprises dome-shaped part, and described dome-shaped part is arranged on stylolitic part, and wherein said dome-shaped part and stylolitic part are configured to have multiple holes.
In an embodiment of the present utility model, the hole of described multiple refrigerant distributors is configured to allow cold-producing medium to flow out described allocation component.
In an embodiment of the present utility model, described dome-shaped part comprises the end sections of atresia.
In an embodiment of the present utility model, each of described multiple refrigerant distributors comprises stylolitic part and closed flat-top.
Referring to the accompanying drawing that forms the utility model part, wherein by shown in embodiment show enforceable embodiment.Term " fluid " is general terms, can refer to cold-producing medium and/or process fluid, for example water.Should be appreciated that term used herein is intended to describe drawings and Examples, and should not be regarded as limiting the application's protection domain.
Fig. 1 shows according to the biopsy cavity marker devices of shell-and-tube evaporator 100 of an embodiment and the view of decomposition.Evaporimeter 100 comprises shell 110, and described shell 110 has first end 112 and the second end 114.Shell 110 comprises process fluid entrance 116 and process fluid outlet 118, forms shell side.Process fluid entrance 116 is configured to receive process fluid, for example water; And process fluid outlet 118 process fluids that are configured to after guide adjustment leave shell 110.Conventionally the more close first end 112 of process fluid entrance 116, and process fluid outlet 118 more close the second ends 114.Should be appreciated that in certain embodiments, process fluid outlet can more close first end 112, and the second end 114 that process fluid outlet can more close evaporimeter 100.
The tube bank 119 that comprises multiple heat exchanger tubes 120 is the shell 110 through first end 112 and the second end 114 along the longitudinal direction being limited by the length L of shell 110.The heat exchanger tube 120 of tube bank 119 forms tube side.The openend 122 of heat exchanger tube 120 is connected to the tube sheet 140 near the first end 112 of shell 110.Openend 122 is formed into port area 122a and exit region 122b on tube sheet 140.Entrance area 122a is conventionally configured to receive cold-producing medium and cold-producing medium is assigned to heat exchanger tube 120.Exit region 122b is configured to guide cold-producing medium to leave heat exchanger tube 120 conventionally.Evaporimeter 100 also comprises refrigerant case 130, and described refrigerant case 130 is configured to be connected to tube sheet 140.Refrigerant case 130 is configured to cold-producing medium to be dispensed into heat exchanger tube 120 and to guide cold-producing medium to leave heat exchanger tube 120.
Evaporimeter 100 also comprises sealing plate 150, and described sealing plate 150 passes shell 110 along the longitudinal direction being limited by the length L of shell 110.Sealing plate 150 is configured to contact the internal baffle 152 of shell 110 inside.Internal baffle 152 can be configured to guide the process fluid flow of shell 110 inside.Sealing plate 150 can contribute to fill the region between tube bank 119 and the inner surface 190 of evaporimeter, and discharges process fluid from this region.Sealing plate 150 also can contribute between internal baffle 152 and shell 110, to form not the sealing of process fluid thoroughly, and/or contributes to discharge the process fluid of shell 110 inside.
Conventionally, each heat exchanger tube 120 starts from the entrance area 122a of tube sheet 140, passes shell 110 along the longitudinal direction being limited by length L, and does " U " shape bending 121 at the second end 114 places of shell 110 subsequently.Heat exchanger tube 120 passes shell 110 along the longitudinal direction being limited by length L subsequently again, then terminates in the exit region 122b of tube sheet 140.In certain embodiments, heat exchanger tube is continuous pipe, can be known as " U " shape pipe.
In evaporimeter 100, conventionally towards the region of the bottom 111 of shell 110 without any heat exchanger tube 120, this is generally similar to 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, and wherein said refrigerant inlet 132 forms fluid communication with the entrance area 122a of tube sheet 140, and described refrigerant outlet 134 forms fluid communication with the exit region 122b of tube sheet 140.Refrigerant inlet 132 is configured to receive cold-producing medium and cold-producing medium is assigned to heat exchanger tube 120 by entrance area 122a.Refrigerant outlet 134 is configured to receive the cold-producing medium that flows out heat exchanger tube 120 by exit region 122b.
At work, cold-producing medium can be dispensed into heat exchanger tube 120 by the refrigerant inlet 132 at first end 112 places at shell 110, flows through heat exchanger tube 120 along the longitudinal direction being limited by length L, and then " U " shape bending 121 is passed through in revolution, and again through heat exchanger tube 120.Cold-producing medium flow back into the first end 112 of shell 110 subsequently, and can be collected and be conducted through refrigerant outlet 134 and leave shell 110.
Process fluid can be introduced into shell 110 by process fluid entrance 116, then flows along the longitudinal direction being limited by length L, and is drawn shell from process fluid outlet 118.Process fluid flow direction is generally guided by internal baffle 152.Utilizing the internal baffle 152 of evaporimeter 100 inside to guide process fluid flow is generally known in this area.Cold-producing medium in process fluid in shell 110 and heat exchanger tube 120 can form heat exchange relationship, contributes to the heat exchange between process fluid and cold-producing medium.
Region between outermost heat exchanger tube 120 and the inner surface 190 of evaporimeter 100 of tube bank 119 may be without any heat exchanger tube 120, and this is may be difficult because heat exchanger tube 120 is installed near the inner surface 190 of evaporimeter 100.Because described region is generally without any heat exchanger tube 120, in this region, the heat exchanger effectiveness of process fluid may be lower.Sealing plate 150 can contribute to fill the region of this lower heat exchanger effectiveness and process fluid is discharged to this region.(the more discussion referring to Fig. 4 C about space and sealing plate.)
Process fluid also may be walked around internal partition 152 between the inner surface of shell 190 and internal baffle 152.Sealing plate 150 also can contribute to discharge the process fluid of shell 110 inside.Sealing plate can contribute to increase the heat exchanger effectiveness between process fluid and cold-producing medium.
Fig. 2 A-2F shows according to the different aspect of the refrigerant case 230 of an embodiment.As shown in Figure 2 A and 2B, refrigerant case 230 can comprise head 231, separator 233, lower partition 235 and cold-producing medium allocation component 260, and described cold-producing medium allocation component 260 is arranged between separator 233 and lower partition 235.Refrigerant case 230 has refrigerant inlet 232 and refrigerant outlet 234.
Refrigerant case 230 can be configured to work together with the evaporimeter 100 shown in Fig. 1.Referring to Fig. 1,2A and 2B, when after assembling, separator 233 is configured to conventionally and tube sheet 140 forms not the sealing of cold-producing medium thoroughly between entrance area 122a and exit region 122b.Formed with tube sheet 140 by separator 233 not thoroughly the sealing of cold-producing medium can contribute to separate from refrigerant inlet 232 and flow into the cold-producing medium of head 231 and flow out the cold-producing medium of head 231 from refrigerant outlet 234.
As shown in Fig. 2 A and 2C, cold-producing medium allocation component 260 comprises distributor box 262 and at least one refrigerant distributor 264.Shown embodiment comprises that two refrigerant distributors 264 are arranged on distributor box 262.The quantity that should be appreciated that refrigerant distributor 264 can be more than two.
As shown in Figure 2 B, cold-producing medium allocation component 260 especially the distributor box 262 of cold-producing medium allocation component 260 be configured to cover the opening 232a of refrigerant inlet 232.As shown in the figure, distributor box 262 can be configured to have rectangular profile.Should be appreciated that distributor box 262 can be other shape except rectangle.When cold-producing medium flows into refrigerant inlet 232, the speed of cold-producing medium may be higher.Distributor box 262 can contribute to reduce the speed of cold-producing medium.
Refrigerant distributor 264 has hole 265, and described hole 265 is configured to allow cold-producing medium from distributor box 262 tap holes 265.After assembling, the opening 232a of refrigerant distributor 264 and refrigerant inlet 232 is arranged on the opposite side with respect to distributor box 262.Refrigerant distributor 264 is configured to point to the entrance area (for example, the entrance area 122a in Fig. 1) of tube sheet (for example tube sheet 140 in Fig. 1).Refrigerant inlet 232, distributor box 262 and refrigerant distributor 264 can fluid communication.Cold-producing medium can be introduced into refrigerant inlet 232 and flow out the hole 265 of refrigerant distributor 264 by distributor box 262.
Opening 232a biasing with respect to refrigerant inlet 232 in the direction that refrigerant distributor 264 can be limited by length L 2 at distributor box 262 arranges.Refrigerant distributor 264 can be arranged on than the relative position of opening 232 more by side on the longitudinal direction being limited by length L 2.In the time that cold-producing medium flows into distributor box 262, distributor box 262 not only can contribute to reduce the speed of cold-producing medium, also can contribute to horizontal assignment system cryogen on the longitudinal direction being limited by length L 2.Cold-producing medium can flow into distributor 264 subsequently, to flow out from the hole 265 of refrigerant distributor 264.
In the time of work, after cold-producing medium flows out the hole 265 of refrigerant distributor 264, cold-producing medium can flow into heat exchanger tube (for example heat exchanger tube 120 in Fig. 1) subsequently.
Referring to Fig. 1,2A and 2D, lower partition 235 is configured to contribute to prevent that cold-producing medium from being provided and delivered by the white space 122c to tube sheet 140 conventionally.After assembling, lower partition 235 is arranged on conventionally just in time below the entrance area 122a of tube sheet 140.
Referring to Fig. 2 E, show the section of cutting open along the line 2E-2E in Fig. 2 D.Lower partition 235 is provided in gapped G2 between lower partition 235 and the interface 239 of head 231.
Referring to Fig. 1,2A, 2D and 2E, in the time that head 231 fits together with example evaporimeter 100 as shown in Figure 1, due to clearance G 2, lower partition 235 does not contact tube sheet 140.This is different from separator 233, and described separator is configured to form not the sealing of cold-producing medium thoroughly with tube sheet 140.
Clearance G 2 can be less, and for example about 3mm makes clearance G 2 generally not allow a large amount of cold-producing mediums to flow through clearance G 2.Therefore, clearance G 2 is not generally interfered cold-producing medium is dispensed into the heat exchanger tube in entrance area 122a.
In the evaporimeter of G2 very close to each other, lower partition 235 may form gas tight seal with tube sheet 140.As a result, some air can be trapped in space 238.In the course of work of evaporimeter, the pressure differential being for example trapped in, between air and refrigerant inlet region (, the entrance area 122a in Fig. 1) in space 238 may cause lower partition 235 to be out of shape.The air being trapped in space 238 may spill, and reduces the performance of evaporimeter.In the time that evaporimeter is assembled, clearance G 2 can contribute to discharge air from space 280, for example, by using vacuum.
Referring to Fig. 2 C and 2D, shown refrigerant distributor 264 comprises stylolitic part 264a and dome-shaped part 264b along height H 2 directions of refrigerant distributor 264.Stylolitic part 264a and dome-shaped part 264b are all configured to have multiple holes 265.Hole 265 in stylolitic part 264a and dome-shaped part 264b can set in a row at various height along height H 2.
In certain embodiments, in stylolitic part 264a, the quantity in every row's hole 265 may be identical, and in dome-shaped part 264b, the quantity in every row's hole 265 may be different.But, the setting that should be appreciated that hole 265 is exemplary.
Shown hole 265 generally has round-shaped.This is exemplary.Should be appreciated that hole 265 can be configured to have other shape, for example triangle or flute profile.
It is relatively closed that the end sections 269 of dome-shaped part 264b can be configured to.For example, end sections 269 can be configured to not comprise any hole 265.Closed end sections 269 can contribute to cold-producing medium to release along the hole 265 of stylolitic part 264a and dome-shaped part 264b setting relatively.This structure can contribute to guide more equably cold-producing medium.
Cold-producing medium allocation component 260 can be configured to have multiple refrigerant distributors 264.In an illustrated embodiment, the quantity of refrigerant distributor 264 is two, should be appreciated that quantity can be more than two.Should be appreciated that on distributor box 262, arranging of refrigerant distributor 264 can change, to realize the uniform distribution of for example cold-producing medium.
Fig. 3 shows another embodiment of refrigerant distributor 364.As shown in the figure, refrigerant distributor 364 is configured to have stylolitic part 364a.Refrigerant distributor 364 is configured to not have dome-shaped part, example dome-shaped part 264b as shown in Figure 2 C.Refrigerant distributor 364 can be configured to have the closed flat-top 369 without any hole.Stylolitic part 364a can have multiple holes 365 to contribute to assignment system cryogen.
The structure that should be appreciated that the refrigerant distributor as shown in Fig. 2 C and 3 is exemplary.Refrigerant distributor can be configured to have other shape or structure.For example, the dome-shaped part 264b shown in Fig. 2 C can be configured to taper.The size in hole and position also can be different.Conventionally, the structure in refrigerant distributor and hole (comprising shape, the quantity of distributor and size and the position in structure and hole of refrigerant distributor) can be configured to contribute to cold-producing medium uniform distribution to enter heat exchanger tube.In certain embodiments, refrigerant distributor can be provided in the Pressure Drop of realizing an expectation in the process through hole.In certain embodiments, allocation component can not comprise any refrigerant distributor; But distributor box itself can comprise hole so that assignment system cryogen.Computer simulation can be used for helping to determine the structure in refrigerant distributor and hole.
Fig. 4 A shows according to the evaporimeter 400 of the shell of removing evaporimeter 400 410 (as shown in Figure 4 C) of an embodiment.Evaporimeter 400 comprises tube sheet 440, and described tube sheet 440 is connected to tube bank 419.Tube bank 419 is made up of multiple heat exchanger tubes 420.Evaporimeter 400 also comprises multiple internal baffles 452, and the longitudinal direction (length L 4 can be similar to the length L 1 of evaporimeter 100 as shown in Figure 1) that described multiple internal baffles 452 limit along the length L 4 by evaporimeter 400 is spaced apart.
Evaporimeter 400 comprises the sealing plate 450 that is positioned at multiple internal baffles side.Sealing plate 450 extends along length L 4.As shown in Figure 4 A, the whole length L 4 of the extensible evaporimeter 400 of sealing plate 450 (the whole length L 1 of the extensible evaporimeter 100 of sealing plate 150 as shown in Figure 1).
Fig. 4 B shows the front view of an internal baffle 452.Internal baffle 452 comprises multiple holes 455, and described hole 455 is configured to hold heat exchanger tube 420.Internal baffle 452 also comprises the first cut-away area 456a and the second cut-away area 456b of the both sides that are positioned at internal baffle 452.Cut-away area 456a and 456b are generally corresponding to the region that does not conventionally have heat exchanger tube 420 to pass.
Referring to Fig. 4 C, show the front cross-section view of evaporimeter 400.Evaporimeter comprises shell 410.Internal baffle 452 is shaped according to the inner surface of shell 410 490 conventionally, so that internal baffle 452 can be in shell 410 inner tight couplings.
Referring to Fig. 1,4A and 4C, internal baffle 452 can be used for the shell side of evaporimeter (for example, the evaporimeter 100 in Fig. 1), so that guiding flow of process fluid.Flow of process fluid flows into shell 110 from process fluid entrance 116.Internal baffle 452 is configured to guide process fluid to form serpentine shape fluid stream.It is known that serpentine shape fluid stream can contribute to the heat exchange between fluid stream and heat exchanger tube 120.
Sometimes, the inner surface 190 of shell 110 and internal baffle 452 may not form not the sealing of process fluid thoroughly, and process fluid can be walked around internal baffle 452 in the gap between internal baffle 452 and the inner surface 190 of shell 110.As a result, a part of process fluid may be taken a shortcut in the gap between internal baffle 452 and the inner surface 190 of shell 110, walks around serpentine shape fluid stream, causes the not optimum reduction of heat exchanger effectiveness.
In evaporimeter 400, be conventionally difficult to heat exchanger tube 420 to be placed on the inner surface 190 that is in close proximity to shell 140.Cut-away area 456a and 456b corresponding to the region of inner surface 190 that approaches shell 410, are difficult to place heat exchanger tube 420 in described region conventionally.Owing to there is no heat exchanger tube 420 through this region, the heat exchanger effectiveness in process fluid and heat exchanger tube 420 between cold-producing medium is lower.In example evaporimeter as shown in Figure 1, cause serpentine shape fluid stream by multiple deflection plates 152, conventionally receive heat exchange still less than other region corresponding to the process fluid in the region of cut-away area 456a and 456b.Therefore may wish the process fluid in described region to discharge.
Cut-away area 456a and 456b are configured to accept sealing plate 450.Sealing plate 450 extends between the inner surface 490 of shell 410 and cut-away area 456a and 456b, and fills up cut-away area 456a and 456b.
Sealing plate 450 comprises the first side 450a and the second side 450b, and wherein said the first side 450a is configured to the shape of the inner surface 490 that meets shell 410, and the second side 450b is configured to meet the shape of cut-away area 456a, 456b.The bottom 457a of cut-away area 456a and 456b and 457b are configured to outermost side opening 455a and the 455b close to hole 455 respectively separately, and described hole 455 is configured to hold heat exchanger tube 420.Therefore, sealing plate 450 can be filled the region between tube bank 419 and the inner surface 490 of shell 410 substantially.Sealing plate 450 also can form not the sealing of process fluid thoroughly with the inner surface 490 of cut-away area 456a, 456b and shell 410.
Not having in traditional evaporimeter of cut-away area 456a, 456b and sealing plate 450, process fluid can be stayed the region corresponding to sealing plate 450.Process fluid in these regions has lower (or not having) heat transfer efficiency, because there is not heat exchanger tube in these regions.Sealing plate 450 can contribute to process fluid to discharge these regions, has increased the heat transfer efficiency of evaporimeter 400.
Not having in traditional evaporimeter of cut-away area 456a, 456b and sealing plate 450, internal baffle may not form not the sealing of process fluid thoroughly with the inner surface of shell.Therefore, process fluid can be walked around internal baffle between the inner surface of shell and internal baffle.Because sealing plate 450 forms not the sealing of process fluid thoroughly between cut-away area 456a, 456b and shell 410, sealing plate 450 also can contribute to reduce process fluid walks around undesirable effect of internal baffle 452.
About aforesaid explanation, should be appreciated that in the situation that not departing from protection domain of the present utility model and can change in detail.Description and shown in embodiment should be considered to be exemplary, true scope of the present invention and spirit should be represented by the wide in range implication of claim.
Brief description of the drawings
Referring now to accompanying drawing,, wherein identical Reference numeral runs through and represents in full corresponding parts.
Fig. 1 is according to the perspective view of the biopsy cavity marker devices of the evaporimeter of an embodiment and decomposition.It should be pointed out that Fig. 1 has omitted some heat exchanger tubes.
Fig. 2 A-2E shows according to the different aspect of the refrigerant case of another embodiment.Fig. 2 A is front perspective view.Fig. 2 B removes cold-producing medium allocation component front perspective view afterwards.Fig. 2 C shows the perspective view of cold-producing medium allocation component.Fig. 2 D shows the front view of refrigerant case.Fig. 2 E is the cutaway view of being cut open by the line 2E-2E in Fig. 2 D.
Fig. 3 shows another embodiment of refrigerant distributor.
Fig. 4 A-4C shows according to the different aspect of the evaporimeter of another embodiment.Fig. 4 A shows the perspective view after the shell of removing evaporimeter.Fig. 4 B shows the internal baffle of evaporimeter.Fig. 4 C shows the front cross-section view of evaporimeter.
Claims (15)
1. a shell-and-tube evaporator, is characterized in that, described shell-and-tube evaporator comprises:
Shell side, described shell side is configured to receive process fluid;
Tube side, described tube side is configured to receive cold-producing medium;
Refrigerant case, described refrigerant case comprises refrigerant inlet;
Cold-producing medium allocation component, described allocation component comprises distributor box and multiple refrigerant distributor, described distributor box has the longitudinal direction being limited by the length of distributor box;
Wherein, described distributor box is configured to cover refrigerant inlet, described refrigerant inlet and multiple refrigerant distributor fluid communication, and described multiple refrigerant distributor is with respect to refrigerant inlet horizontally set in a longitudinal direction.
2. shell-and-tube evaporator according to claim 1, it is characterized in that: each of described multiple refrigerant distributors comprises dome-shaped part, described dome-shaped part is arranged on stylolitic part, and wherein said dome-shaped part and stylolitic part are configured to have multiple holes.
3. shell-and-tube evaporator according to claim 2, is characterized in that: described dome-shaped part comprises the end sections of atresia.
4. shell-and-tube evaporator according to claim 1, is characterized in that: each of described multiple refrigerant distributors comprises stylolitic part and closed flat-top.
5. shell-and-tube evaporator according to claim 1, is characterized in that: described multiple refrigerant distributors have hole, and described hole is configured to allow cold-producing medium to flow out described allocation component.
6. shell-and-tube evaporator according to claim 1, is characterized in that, described shell-and-tube evaporator also comprises:
Tube sheet;
Refrigerant outlet;
Wherein, described refrigerant outlet and refrigerant inlet are separated device separately, and described separator forms not the sealing of cold-producing medium thoroughly with tube sheet between refrigerant outlet and refrigerant inlet.
7. shell-and-tube evaporator according to claim 1, is characterized in that, described shell-and-tube evaporator also comprises:
Tube sheet;
Lower partition, described lower partition is arranged under refrigerant inlet, the bottom with respect to refrigerant inlet towards evaporimeter;
Wherein, lower partition and tube sheet form gap.
8. shell-and-tube evaporator according to claim 1, is characterized in that, described shell-and-tube evaporator also comprises:
Multiple internal baffles;
Sealing plate, described sealing plate extends in the whole length of described evaporimeter;
Wherein, each of described multiple internal baffles comprises the side direction cut-away area between internal baffle and the inner surface of shell, and described sealing plate is configured to be arranged in described cut-away area.
9. shell-and-tube evaporator according to claim 8, it is characterized in that: described sealing plate is provided in and between sealing plate and the inner surface of shell, forms the first not sealing of process fluid thoroughly, and form the second not sealing of saturating process fluid between each of sealing plate and multiple internal baffles.
10. shell-and-tube evaporator according to claim 8, is characterized in that, described internal baffle comprises:
Two side direction cut-away areas, wherein each side direction cut-away area is provided between deflection plate and the inner surface of evaporimeter and forms space, and described space is configured to hold the sealing plate that is configured to seal described space.
The cold-producing medium allocation component of 11. 1 kinds of evaporimeters, is characterized in that: the cold-producing medium allocation component of described evaporimeter comprises:
Distributor box, described distributor box is configured to cover the refrigerant inlet of evaporimeter;
Multiple refrigerant distributors;
Wherein, with respect to described distributor box, described multiple refrigerant distributors are arranged on distributor box, are positioned at the relative side of refrigerant inlet covering with described distributor box;
Described distributor box has longitudinal direction, and in a longitudinal direction, the refrigerant inlet horizontally set that described multiple refrigerant distributors cover with respect to described distributor box.
12. cold-producing medium allocation component according to claim 11, it is characterized in that: each of described multiple refrigerant distributors comprises dome-shaped part, described dome-shaped part is arranged on stylolitic part, and wherein said dome-shaped part and stylolitic part are configured to have multiple holes.
13. cold-producing medium allocation component according to claim 11, is characterized in that: the hole of described multiple refrigerant distributors is configured to allow cold-producing medium to flow out described allocation component.
14. cold-producing medium allocation component according to claim 12, is characterized in that, described dome-shaped part comprises the end sections of atresia.
15. cold-producing medium allocation component according to claim 11, is characterized in that: each of described multiple refrigerant distributors comprises stylolitic part and closed flat-top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828104.2U CN203881005U (en) | 2012-12-21 | 2013-12-16 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/087174 WO2014094304A1 (en) | 2012-12-21 | 2012-12-21 | Shell and tube evaporator |
| CNPCT/CN2012/087174 | 2012-12-21 | ||
| CN201320828104.2U CN203881005U (en) | 2012-12-21 | 2013-12-16 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881005U true CN203881005U (en) | 2014-10-15 |
Family
ID=51681494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828104.2U Expired - Lifetime CN203881005U (en) | 2012-12-21 | 2013-12-16 | Shell and tube evaporator and refrigerant distribution assembly of evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104956162B (en) * | 2012-12-21 | 2017-11-21 | 特灵国际有限公司 | Shell-and-tube evaporator |
| CN112484346A (en) * | 2020-12-24 | 2021-03-12 | 无锡市同力空调设备有限公司 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
-
2013
- 2013-12-16 CN CN201320828104.2U patent/CN203881005U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104956162B (en) * | 2012-12-21 | 2017-11-21 | 特灵国际有限公司 | Shell-and-tube evaporator |
| CN112484346A (en) * | 2020-12-24 | 2021-03-12 | 无锡市同力空调设备有限公司 | Refrigerant distributor and dry evaporator with built-in refrigerant distributor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |