CN108895696B - Composite cooling device and equipment with zigzag microchannel throttling refrigerator - Google Patents
Composite cooling device and equipment with zigzag microchannel throttling refrigerator Download PDFInfo
- Publication number
- CN108895696B CN108895696B CN201810585586.0A CN201810585586A CN108895696B CN 108895696 B CN108895696 B CN 108895696B CN 201810585586 A CN201810585586 A CN 201810585586A CN 108895696 B CN108895696 B CN 108895696B
- Authority
- CN
- China
- Prior art keywords
- channel
- communicated
- throttling
- inlet
- outlet
- 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
Images
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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
Abstract
According to the composite cooling device and the equipment with the zigzag microchannel throttling refrigerator, the composite cooling device comprises the zigzag microchannel throttling refrigerator and the oscillating heat pipe part, the zigzag microchannel throttling refrigerator is formed by overlapping a plurality of zigzag backheating throttling assemblies in a staggered mode, each zigzag backheating throttling assembly comprises two backheating throttling plates which are overlapped up and down, each backheating throttling plate comprises an inlet section, a channel section and an expansion section which are sequentially connected, a plurality of zigzag broken line grooves which are arranged in parallel are formed in the channel section, the zigzag broken line grooves in the two backheating throttling plates are mutually staggered and communicated at the staggered position to form a backheating throttling channel, the zigzag broken line grooves in the two plates are staggered to form a net contact, a net-shaped rotary net flow is formed in the flowing process of a working medium in the channel, and the heat exchange efficiency between the plates and the working medium can be enhanced.
Description
Technical Field
The invention belongs to the field of heat exchange enhancement, and particularly relates to a composite cooling device with a zigzag micro-channel throttling refrigerator.
Background
The micro throttling refrigerator utilizes Joule-Thomson effect (J-T effect) to refrigerate, has the characteristics of simple structure, small size, quick cooling and the like, and is widely applied to occasions with small space size, such as medical, military, industrial and other fields of inner cavity cryotherapy, infrared night vision devices, cryosurgical probes, missile guidance systems, electronic equipment cooling and the like. At present, the main J-T effect refrigerator still adopts a Hampson type (spiral fin tube type), a stainless steel tube with the outer diameter of 0.5mm-1mm is wound on a mandrel, and high-pressure gas flows through the whole stainless steel tube and enters a capillary tube of a tube head for throttling. The throttled low-pressure gas flows back to pass through the outer fins of the stainless steel pipe to pre-cool the inflowing high-pressure gas. However, the air inlet of the Hampson type throttling refrigerator is only one to two paths, the refrigerating capacity is small, the central support shaft occupies a large space in the refrigerator, the refrigerator is not compact in structure, and the heat exchange efficiency is low.
With the development of the microchannel technology, the microchannel throttling refrigerator is widely researched and applied, and is generally made of non-metallic materials such as glass and silicon in order to ensure the processing precision of the microchannel, but the microchannel throttling refrigerator made of the materials has low pressure bearing capacity, inflow gas pressure is limited by the materials, and a refrigerating temperature reduction space is limited; meanwhile, the common micro-channel is mostly of a single-layer heat exchange structure, so that the air input is small and the refrigerating capacity is low; although the side wall of the existing rectangular microchannel effectively supports the plate, the axial heat conduction of the partition wall of the channel is increased, and the heat loss of the microchannel throttling refrigerator is higher; the cylindrical micro-channel structure can reduce the axial heat conduction on the plate through the interval between the cylinders, but the bearing capacity is reduced, and the pressure drop in the channels of the rectangular and cylindrical plates has an increased space, so the temperature is not sufficiently reduced.
In addition, the existing refrigerator mostly adopts a mode of directly exchanging heat between a cold end and a heat source needing refrigeration, and the uniformity is poor during heat exchange.
In summary, the existing micro-channel throttling refrigerator has the disadvantages of small air input, low heat exchange efficiency and limited bearing capacity, and restricts the application and development of the micro-channel throttling refrigerator.
Disclosure of Invention
The present invention is to solve the above problems, and an object of the present invention is to provide a novel composite cooling device and apparatus with a zigzag microchannel throttling refrigerator.
The invention provides a composite cooling device with a zigzag micro-channel throttling refrigerator, which is characterized by comprising the zigzag micro-channel throttling refrigerator, a first cooling device and a second cooling device, wherein the zigzag micro-channel throttling refrigerator is provided with an expansion end; and an oscillating heat pipe part connected with the expansion end, wherein the zigzag microchannel throttling refrigerator comprises a plurality of regenerative throttling parts, each regenerative throttling part comprises a first regenerative throttling component and a second regenerative throttling component which are overlapped up and down, the first regenerative throttling component comprises two first heat-returning throttling plates, a plurality of first folding grooves which are concave and communicated and are zigzag are arranged on each first heat-returning throttling plate, the depth of the concave of each first folding groove is less than the thickness of the first regenerative throttling plate, the first folding grooves on the two first heat-returning throttling plates which are overlapped up and down and are oppositely arranged are staggered with each other and communicated at the staggered position, the second regenerative throttling component comprises two second regenerative throttling plates, a plurality of second folding grooves which are concave and communicated are arranged on each second regenerative throttling plate, the depth of the concave of each second folding groove is less than the thickness of the second regenerative throttling plate, the second fold grooves on the two second regenerative throttle plates which are overlapped from top to bottom and have the concave surfaces oppositely arranged are mutually staggered and communicated at the staggered position, the oscillating heat pipe part comprises two overlapped oscillating heat pipe plates for uniformly distributing and contacting heat sources, and a plurality of communicated U-shaped channels are arranged in the oscillating heat pipe plates.
The composite cooling device with the zigzag micro-channel throttling refrigerator provided by the invention can also be characterized in that the first heat-recovery throttling plate comprises an inlet section, a first channel section and a first capacity expansion section which are sequentially connected, the inlet section is provided with a first through inlet hole, an inlet groove, a plurality of micro cylinders arranged on the inlet groove in an array manner and a first through outlet hole, the first inlet hole is communicated with the inlet groove, the first outlet hole is not communicated with the inlet groove, the first channel section is provided with a plurality of first concave and communicated folding grooves, the first folding grooves are zigzag, the depth of the zigzag first folding grooves is smaller than the thickness of the first heat-recovery throttling plate, two end points of the first folding grooves are arranged along the length direction of the first channel section, one end of each folding groove is communicated with the inlet groove, the other end of each folding groove is communicated with the first capacity expansion section, the plurality of first folding grooves are arranged in parallel to each other along the width direction of the first channel section, the first capacity expansion section is provided with a first capacity expansion hole which is communicated with the first channel section, one end of each of the first folding line grooves is intersected with the corresponding inlet groove to form a plurality of inlet openings, and the other end of each of the first folding line grooves is intersected with the corresponding first capacity expansion hole to form a plurality of first capacity expansion openings. The first heat-recovery throttling assembly comprises two first heat-recovery throttling plates which are overlapped up and down and are arranged in a first folding groove, wherein the inner concave surfaces of the first folding grooves are opposite to each other, two first inlet holes of two adjacent inlet sections are communicated with each other to form a first inlet channel, two first outlet holes are communicated with each other to form a first outlet channel, two inlet grooves are oppositely arranged to form a communicated inlet groove channel, a plurality of micro-cylinders in the inlet grooves of the two upper plates and the lower plates are overlapped and used for supporting and guiding water, the inlet groove channel is communicated with inlet openings, the first folding grooves on the two adjacent first channel sections are mutually staggered and communicated at the staggered position, the plurality of inlet openings are communicated with a plurality of first expansion ports to form a plurality of first heat-recovery throttling channels, the first expansion holes of the adjacent first expansion sections are communicated to form a first expansion channel, and the first expansion channel is communicated with the first channel section through the first expansion ports.
In addition, the composite cooling device with the zigzag microchannel throttling refrigerator provided by the invention can also have the characteristics that the second regenerative throttle plate comprises an outlet section, a second channel section and a second capacity expansion section which are sequentially connected, the outlet section is provided with a second through inlet hole, an outlet groove, a plurality of micro cylinders arranged on the outlet groove in an array manner and a second through outlet hole, the second outlet hole is communicated with the outlet groove, the second inlet hole is not communicated with the outlet groove, the second channel section is provided with a plurality of second concave and communicated line folding grooves, the second concave grooves are zigzag, the concave depth of the second concave grooves is smaller than the thickness of the second regenerative throttle plate, two end points of the second concave grooves are arranged along the length direction of the second channel section, one end of each second concave groove is communicated with the outlet groove, the other end of each second concave groove is communicated with the second capacity expansion section, the plurality of zigzag second concave grooves are arranged in parallel to each other along the width direction of the second channel section, the second expansion section is provided with a second through expansion hole, the second expansion hole is connected with the second channel section, the second expansion groove and the second expansion hole are intersected to form a plurality of second expansion ports, the second regenerative throttling component comprises two second regenerative throttling plates which are overlapped up and down and are arranged in the second expansion groove with the inner concave surfaces facing each other, two second inlet holes of adjacent outlet sections are communicated to form a second inlet channel, two second outlet holes are communicated to form a second outlet channel, the two outlet grooves are oppositely arranged to form a communicated outlet channel, a plurality of micro cylinders in the outlet grooves of the upper plate and the lower plate are overlapped for supporting and guiding, the outlet channel is communicated with the outlet opening, the second folding grooves on the adjacent second channel sections are mutually staggered and communicated at the staggered position, and a plurality of outlet openings are communicated with a plurality of second expansion ports to form a plurality of second regenerative throttling channels, and the second capacity expansion holes of the adjacent second capacity expansion sections are communicated to form a second capacity expansion channel, and the second capacity expansion channel is communicated with the second channel section through a second capacity expansion port.
In addition, the composite cooling device with the zigzag micro-channel throttling refrigerator provided by the invention can also have the characteristics that the zigzag micro-channel throttling refrigerator comprises an upper cover plate, a plurality of back-heating throttling components and a lower cover plate which are overlapped in sequence, the adjacent first inlet channel is communicated with the second inlet channel, the adjacent first outlet channel is communicated with the second outlet channel, the adjacent first capacity expanding channel is communicated with the second capacity expanding channel, external refrigerating media flow in from the first inlet channel, enter the first back-heating throttling channel through the inlet groove channel and the inlet opening of the first channel section for throttling refrigeration, then flow back into the first capacity expanding channel, the cold end temperature is reached in the first capacity expanding channel and the second capacity expanding channel, the refrigerating media in the second capacity expanding channel enter the second back-heating throttling channel from a plurality of second capacity expanding openings, and then flows out of the second outlet channel through the outlet channel.
The invention provides a refrigeration device which is characterized by comprising a cooling device for cooling various forms of heat sources, wherein the refrigerator is the composite cooling device.
In the refrigeration apparatus provided by the present invention, there may be further provided a feature that: the refrigerating device is any one of an infrared night vision device, an inner cavity cryotherapy device and a tumor cryotherapy device.
Action and Effect of the invention
The heat-regenerative throttling plate of the zigzag microchannel throttling refrigerator is provided with a plurality of zigzag folding line grooves which are arranged in parallel, the zigzag microchannel heat-regenerative throttling component comprises two heat-regenerative throttling plates which are overlapped up and down, the zigzag folding line grooves on the heat-regenerative throttling plates are mutually staggered and communicated at the staggered position to form a heat-regenerative throttling channel, zigzag corrugations in two plates are mutually inverted to form a net contact, a net rotary net flow is formed in the flowing process of a working medium in the channel, and the heat exchange efficiency between the plates and the working medium can be enhanced.
Furthermore, the zigzag structure can effectively reduce the influence of the axial heat conduction of the micro-channel metal material on the performance of the refrigerator. The heat exchange intensity between the high-pressure and low-pressure channels is improved, and the refrigerating capacity of the refrigerator is increased.
The oscillating heat pipe is a reinforced heat exchange structure and is commonly used for heat exchange and cooling, concentrated heat of a heat source is quickly and uniformly dispersed on the whole oscillating heat pipe by utilizing the characteristic of uniform heat dissipation of the oscillating heat pipe, so that the heat is taken away by refrigeration of the micro-channel throttling refrigerator, and two refrigeration structures are compounded to achieve quick and uniform refrigeration effects.
Drawings
FIG. 1 is a schematic overall profile of a compound cooling device with a zigzag microchannel throttle cooler in an embodiment of the present invention;
FIG. 2 is an overall profile view of a zigzag microchannel throttle cooler in an embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection between the expansion end and the heat pipe portion according to an embodiment of the present invention;
FIG. 4 is an exploded schematic view of a saw tooth microchannel throttle cooler in an embodiment of the present invention;
FIG. 5 is a schematic view of a plate under a single high pressure channel in an embodiment of the invention;
FIG. 6 is a schematic view of a zigzag regenerative throttle assembly according to an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion B of FIG. 6; and
FIG. 8 is a schematic view of the flow of working fluid;
FIG. 9 is a schematic view of the outer shape of an oscillating hot pipe portion in an embodiment of the invention; and
FIG. 10 is a schematic view of an oscillating heat pipe plate in an embodiment of the invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically describe the composite cooling device of the zigzag micro-channel throttling refrigerator of the invention.
Example one
As shown in fig. 1, the composite cooling apparatus with a zigzag micro-channel throttle refrigerator includes a zigzag micro-channel throttle refrigerator 100 and an oscillating hot pipe portion 200.
As shown in fig. 2, the zigzag microchannel throttling heat exchange refrigerator 100 includes an inlet section (outlet section) 1, a regenerative throttling section 2, and an expansion section 3.
As shown in fig. 3, the oscillating hot pipe portion 200 is connected to an end of the expansion section 3.
High-pressure normal-temperature gas enters a regenerative throttling area from an inlet section 1 of the refrigerator, and is subjected to heat exchange and precooling by low-pressure low-temperature return gas on the adjacent side, high-pressure fluid has Bernoulli effect and coke hot water throttling effect in the flowing process, and the multi-layer low-temperature low-pressure gas subjected to regenerative throttling is collected into an expansion section 3, absorbs external heat source heat in the expansion section 3, enters a low-pressure channel and finally flows out through a low-pressure outlet. The high-pressure and low-pressure plates are arranged adjacently, so that the heat regeneration sufficiency of the high-pressure working medium is ensured, and the precooling effect in the multilayer high-pressure channel is as uniform and consistent as possible.
The invention provides a zigzag micro-channel throttling refrigerator which is formed by arranging a plurality of high-pressure channel assemblies and low-pressure channel assemblies in a staggered mode. And an upper cover plate and a lower cover plate with certain thickness are arranged on the outermost layer of the refrigerator, so that the refrigerator is supported and stabilized. In the refrigeration process, the refrigerant sequentially passes through the inlet section of the high-pressure channel assembly according to the flow of the refrigerant and is used for leading the high-pressure gas refrigerant to enter the refrigerator; the regenerative throttling section of the high-pressure channel component is used for exchanging heat between high-pressure gas and low-pressure backflow gas, and meanwhile, in the whole flowing process, a distributed J-T effect is formed due to the periodic change of the sectional area of the channel, so that the high-pressure gas is cooled again; the expansion section of the high-pressure channel assembly is connected with the outlet of the high-pressure gas channel and is used for enabling the low-temperature and low-pressure working medium to absorb heat load heat and evaporating the working medium liquefied in the cooling process; the low-pressure channel assembly backheating throttling section has the same principle as the high-pressure gas channel, and is mainly used for exchanging heat between low-pressure return gas and high-pressure gas and precooling the high-pressure gas; and the low-pressure channel assembly outlet section is used for discharging the refrigerating working medium in the low-pressure gas channel unit out of the microchannel refrigerator.
As shown in fig. 4, the zigzag microchannel throttle refrigerator 100 includes an upper cover plate 10, a plurality of high pressure channel assemblies 20 and a plurality of low pressure channel assemblies 30 stacked alternately one on top of the other, a lower cover plate 40, and inlet and outlet pipes 50 and 60.
An upper cover plate 10 and a lower cover plate 40 with certain thickness are arranged at the outermost layer of the zigzag micro-channel throttling refrigerator 100, and play a role in supporting and stabilizing the whole refrigerator.
The upper cover plate 10 is provided with a through inlet hole.
The high-pressure channel assembly 20 includes a high-pressure channel upper plate 21 and a high-pressure channel lower plate 22 stacked one on another.
The upper plate 21 and the lower plate 22 of the high-pressure channel respectively comprise an inlet section, a regenerative throttling section and an expansion section which are connected in sequence.
As shown in fig. 5, the inlet section of the lower plate 22 of the high-pressure channel is rectangular and has a first inlet hole 221, an inward concave inlet groove 223 and a first outlet hole 222, the first inlet hole 221 is communicated with the inlet groove 223, and the first outlet hole 222 is not communicated with the inlet groove 223. In the embodiment, the inlet groove 223 is "L" shaped, and is recessed inward from the upper surface of the plate, and a plurality of upright micro-cylinders 2231 are arranged at intervals on the bottom surface of the groove in the channel of the inlet groove 223, and the micro-cylinder array structure has the supporting and flow guiding functions.
The lower plate 22 of high-pressure passage backheat throttle section is the rectangle, as shown in fig. 5, be provided with many indent and the broken line groove 224 that communicates on the board, broken line groove 224 is the zigzag, broken line groove 224 has two endpoints 2241 and 2242, these two endpoints 2241 and 2242 set up along the length direction who backheats the throttle section, one end 2241 communicates entry recess 223, other end 2242 communicates first dilatation section, a plurality of zigzag broken line grooves 224 along the width direction mutual parallel arrangement who backheats the throttle section, a plurality of zigzag broken line grooves 224 and entry recess 223 intersect and form a plurality of inlet openings. In the embodiment, the sizes of the folding grooves 224 are all in micron order, and the channel spacing is also in micron order, so as to ensure the compactness of channel arrangement.
As shown in the enlarged detail view a of fig. 5, the zigzag groove 224 is a zigzag groove designed on the regenerative throttle section, and 226 is a planar area without grooves. In the embodiment, the back-heating throttling section of the plate 22 under the high-pressure channel is provided with a plane area 227 without a groove on both sides in the width direction.
In the embodiment, the lower plate 22 of the high-pressure channel is made of stainless steel materials, the fold line groove 224 is etched by adopting a printed circuit board etching technology, plates with different fold line slopes are designed in advance according to refrigeration and heat exchange requirements, the thickness of the lower plate 22 of the high-pressure channel is 3mm, and the depth of the inwards concave part of the fold line groove 224 is 2 mm.
The capacity expansion section of the lower plate 22 of the high-pressure channel is provided with a first through capacity expansion hole 225, the first capacity expansion hole 225 is communicated with the regenerative throttling section, and the zigzag folding grooves 224 on the regenerative throttling section are intersected with the first capacity expansion hole 225 to form a plurality of capacity expansion ports. The shape of the expansion section can be rectangular, trapezoidal, oval and the like. In an embodiment, the expansion section is trapezoidal, one side of the length of the bottom side of the trapezoid faces outward to increase the contact area between the contact and the tail heat dissipation unit, and the first expansion hole 225 is also trapezoidal matching with the expansion section.
The shape and size of the high-pressure channel upper plate 21 and the high-pressure channel lower plate 22 are the same, and only have some differences in local parts.
The inlet section of the upper plate 21 of the high-pressure channel has the same structure as that of the inlet section of the lower plate 22 of the high-pressure channel, but the inlet groove of the upper plate 21 of the high-pressure channel is inwards concave from the lower surface of the plate.
The inlet section of the upper plate sheet of the high-pressure channel is rectangular and is provided with a first through inlet hole, a concave inlet groove and a first through outlet hole, the first inlet hole is communicated with the inlet groove, and the first outlet hole is not communicated with the inlet groove. In the embodiment, the inlet groove is L-shaped, the inlet groove is inwards concave from the lower surface of the plate, a plurality of vertical micro-cylinders are arranged on the bottom surface of the groove in the inlet groove channel at intervals in an array mode, and the micro-cylinder array structure has the functions of supporting and guiding flow.
The structure of the regenerative throttling section of the upper plate 21 of the high-pressure channel is the same as that of the regenerative throttling section of the lower plate 22 of the high-pressure channel, but the folding line in the zigzag folding line groove of the upper plate 21 of the high-pressure channel and the folding line in the zigzag folding line groove 224 of the lower plate 22 of the high-pressure channel are staggered with each other, as shown in a partial enlarged view of fig. 7B, the two sides of the width direction of the upper plate 21 of the high-pressure channel are provided with plane areas 227 without grooves, in the embodiment, the two sides of the width direction of the regenerative throttling section of the upper plate and the lower plate of the high-pressure.
The expansion section of the upper plate 21 of the high-pressure channel is the same as the expansion section of the lower plate 22 of the high-pressure channel in structure, and the first expansion hole is the same as the first expansion hole 225 in shape and size.
As shown in fig. 6, the upper plate 21 of the high-pressure channel and the lower plate 22 of the high-pressure channel are overlapped up and down, the two first inlet holes and 221 of the inlet section are communicated to form a first inlet channel, the two first outlet holes and 222 are communicated to form a first outlet channel, the two concave inlet grooves and 223 are oppositely arranged to form a communicated inlet groove channel, the inlet groove channel is communicated with the inlet opening, for example, the zigzag folding grooves on the regenerative throttling section of the upper plate 21 of the high-pressure channel and the lower plate 22 of the high-pressure channel are staggered and communicated at the staggered position, and the staggered condition of the upper plate and the lower plate can be seen in fig. 7. In the embodiment, the plurality of inlet openings communicate with the plurality of expansion ports to form a plurality of high-pressure throttling channels, and the first expansion hole of the upper plate 21 of the high-pressure channel communicates with the first expansion hole 225 of the lower plate 22 of the high-pressure channel to form a first expansion channel and communicate with the respective expansion ports.
The low pressure passage assembly 30 includes a low pressure passage upper plate 31 and a low pressure passage lower plate 32 which are stacked one on another.
The low-pressure channel plate 31 includes an outlet section, a regenerative throttle section, and a second expansion section, which are connected in sequence.
The outlet section of the upper plate 31 of the low-pressure channel is rectangular and is provided with a through second inlet hole, a concave outlet groove and a through second outlet hole, the second outlet hole is communicated with the outlet groove, and the second inlet hole is not communicated with the outlet groove. In the embodiment, the outlet groove is L-shaped and is inwards concave from the lower surface of the plate, a plurality of vertical micro-cylinders are arranged on the bottom surface of the groove in the channel of the outlet groove in an array mode, and the micro-cylinder array structure has the functions of supporting and guiding flow.
The upper plate backheating throttling section of the low-pressure channel is rectangular, a plurality of concave and communicated broken line grooves are formed in the plate, each broken line groove is in a sawtooth shape, the depth of the concave part of each sawtooth broken line groove is smaller than the thickness of the upper plate 31 of the low-pressure channel, each broken line groove is provided with two end points, the two end points are arranged along the length direction of the backheating throttling section, one end of each broken line groove is communicated with an outlet groove, the other end of each zigzag broken line groove is communicated with a second expansion section, the plurality of sawtooth broken line grooves are arranged in parallel along the width direction of the backheating throttling section, and the plurality of broken. In the embodiment, the sizes of the broken line grooves are both in micron order, and the channel spacing is also in micron order, so that the arrangement compactness of the channels is ensured.
In the embodiment, the upper plate 31 of the low-pressure channel is made of stainless steel materials, the straight line groove is etched by adopting a printed circuit board etching technology, plates with different broken line inclinations are designed in advance according to refrigeration and heat exchange requirements, the thickness of the upper plate 31 of the low-pressure channel is 3mm, and the depth of the concave part of the broken line groove in the upper plate 31 of the low-pressure channel is 2 mm.
The expansion section of the upper plate 31 of the low-pressure channel is provided with a second through expansion hole, the second expansion hole is communicated with the regenerative throttling section, and the zigzag folding grooves on the regenerative throttling section are intersected with the second expansion hole to form a plurality of expansion ports. The shape of the expansion section can be rectangular, trapezoidal, oval and the like. In the embodiment, the expansion section is trapezoidal, one side of the length of the bottom side of the trapezoid faces outwards and is used for increasing the contact area between a contact object and the tail radiating unit, and the second expansion hole is also in a trapezoidal shape matched with the expansion section.
The lower plate 32 of the low pressure channel has the same shape and size as the upper plate 31 of the low pressure channel, and is only partially different.
The inlet section of the lower plate 32 of the low-pressure channel has the same structure as that of the inlet section of the upper plate 31 of the low-pressure channel, and the inlet groove of the lower plate of the low-pressure channel is inwards concave from the upper surface of the plate.
The structure of the lower plate 32 regenerative throttling section of the low-pressure channel is the same as that of the upper plate 31 regenerative throttling section of the low-pressure channel, and the inclined direction of the fold line groove in the lower plate 32 of the low-pressure channel is staggered with that of the fold line groove of the upper plate 31 of the low-pressure channel.
The low-pressure channel lower plate 32 expansion section and the low-pressure channel upper plate 31 expansion section are identical in structure, and the first expansion hole and the second expansion hole are identical in shape and size.
The upper plate 31 of the low-pressure channel and the lower plate 32 of the low-pressure channel are overlapped up and down, two second inlet holes of the inlet section are communicated and form a second inlet channel, two second outlet holes are communicated and form a second outlet channel, two concave outlet grooves are oppositely arranged to form a communicated outlet groove channel, the outlet groove channel is communicated with an outlet opening, the folding grooves on the regenerative throttling section are mutually staggered and communicated at the staggered position, at least one outlet opening is communicated with at least one expansion port to form at least one low-pressure throttling channel, and two expansion holes of the expansion section are communicated and form a second expansion channel and are communicated with respective expansion ports.
In the embodiment, 3 groups of high- pressure channel assemblies 20 and 3 groups of low-pressure channel assemblies 30 are overlapped in a staggered manner, and the zigzag micro-channel throttling refrigerator 100 sequentially comprises an upper cover plate 10, a high-pressure channel assembly 20, a low-pressure channel assembly 30 and a lower cover plate 40 from top to bottom.
The adjacent first inlet channel is communicated with the second inlet channel, the adjacent first outlet channel is communicated with the second outlet channel, and the adjacent first capacity expansion channel is communicated with the second capacity expansion channel.
The upper cover plate 10 is provided with a through inlet hole communicating with the first inlet passage, and an inlet pipe 50 communicating with the inlet hole.
The lower cover plate 40 is provided with a through outlet hole which communicates with the outlet channel, and an outlet pipe 60 communicates with the outlet hole.
In the embodiment, the cover plate, the high-pressure channel plate and the low-pressure channel plate are connected by adopting a diffusion fusion welding technology, and are combined by an atomic diffusion fusion welding technology of materials between the plates, so that the sealing performance is good and no contact thermal resistance exists. The shape and the size of the micro-channel can be changed according to requirements, and flexibility is provided.
As shown in fig. 7, a is a lower plate passage portion, b is a junction of the upper and lower plate passages, c is an upper plate passage portion, and d is an upper plate non-designed groove portion. The fluid can generate three flow modes at the junction of the upper plate and the lower plate, as shown by arrows in fig. 8, the arrow e indicates that the fluid of the upper plate flows obliquely upwards along the upper plate channel, the arrow f indicates that the fluid of the lower plate flows obliquely downwards along the lower plate channel, the third type is that the fluid of the upper plate and the lower plate generates confluence mixing at the junction, and the converged fluid redistributes and flows along the upper plate channel and the lower plate channel respectively.
After the fluid flows out of the inlet section, the fluid enters the zigzag channels of the upper plate and the lower plate in two paths, two layers of channels can be obviously seen in a local enlarged view, wherein the fluid is converged at a junction after flowing into the upper plate and the lower plate, because the upper channel and the lower channel are communicated at the position, the fluid passes through the position and then is separated at a later runner, and the like, after the fluid flows through the regenerative throttling section, the fluid flows into the expansion section, and the fluid expands at the position to generate refrigeration, so that the lowest temperature is reached at the top end of the expansion section.
As shown in fig. 9, the oscillating hot tube portion 200 includes two identical oscillating hot tube sheets 201 that are stacked. In the embodiment, the connection between the oscillating hot tube plates and the end part of the expansion end of the zigzag micro-channel throttling refrigerator adopt the diffusion fusion welding technology, so that the sealing performance is good and no contact thermal resistance exists.
The oscillating heat pipe plate 201 is provided with an oscillating heat pipe channel formed by a plurality of communicated U-shaped channels, and in the embodiment, the oscillating heat pipe channel is a groove which is arranged in the oscillating heat pipe plate 201 and is concave inwards.
As shown in fig. 10, the oscillating heat pipe plate 201 includes a plurality of U-shaped channels connected to form a curved channel, a straight channel, and a liquid-filled channel.
The linear channel 2015 is horizontally disposed along the length of the oscillating heat tube plate 201.
The curved channel comprises a plurality of communicated U-shaped channels, the plurality of U-shaped channels are arranged in an up-down inverted mode and are communicated with each other, the U-shaped channels are arranged in parallel along the length direction of the oscillating heat tube plate 201, the opening of each U-shaped channel faces the long edge of the rectangle of the oscillating heat tube plate 201, two ends of each curved channel are communicated with two ends of the linear channel 2015 respectively, and the oscillating heat tube plate 201 completes oscillation heat exchange and uniform heat through a U-shaped structure.
The liquid filling channel is a liquid filling pipeline 2014 used for filling working medium, one end, namely an outlet end, of the liquid filling pipeline 2014 is communicated with the outside, and the other end of the liquid filling pipeline is communicated with the linear channel 2015.
As shown in fig. 10, the curved passage has a condensation section 2011, an insulation section 2012 and an evaporation section 2013 from top to bottom, and the condensation section 2011 is close to the linear passage 2015.
The inner concave surfaces of the two oscillating heat pipe plates 201 are oppositely arranged and overlapped, and the respective inner concave oscillating heat pipe channels form a closed oscillating heat pipe channel. The oscillating hot pipe section 200 also includes an end cap disposed at the outlet end of the charge line 2014.
The oscillating heat pipe plate 201 is a structure integrating boiling, evaporation, condensation and pulse oscillation, a heat source falling on the oscillating heat pipe uniformly distributes and cools heat through heat transfer of the oscillating heat pipe, then the heat is transmitted to a capacity expansion cavity of a throttling refrigeration structure through the oscillating heat pipe, and finally refrigeration is finished in the throttling refrigeration structure to take away the heat.
The oscillating hot tube part 200 is connected to the expansion end of the throttling refrigerator 100, the expansion section of the throttling refrigerator 100 is trapezoidal, one side of the length of the bottom edge of the trapezoid faces outwards to form an end part, and the surface of the oscillating hot tube plate 201 in the oscillating hot tube part 200 is connected to the surface of the bottom edge of the trapezoid of the expansion section of the throttling refrigerator 100.
Particularly, the size of the oscillating heat pipe is selected according to practical application occasions, and if the area of the heat source in application is larger than the area of the end wall surface of the expansion end of the regenerative throttling refrigerator, the area of the upper surface of the oscillating heat pipe is the same as the area of the heat source; if the area of the heat source in application is smaller than the area of the end wall surface of the expansion end of the regenerative throttling refrigerator, the area of the upper surface of the oscillating heat pipe is the same as the area of the end wall surface of the expansion end.
The heat of the heat source enters the oscillating heat pipe, is uniformly distributed in the oscillating heat pipe through the oscillating heat exchange of the oscillating heat pipe, and is transmitted to the throttling refrigeration structure through the evaporation cavity connected with the oscillating heat pipe.
High-pressure gas working medium is adopted as the coke soup throttling refrigerant in the zigzag microchannel coke soup throttling refrigerator, and when the refrigerator is used under the normal temperature working condition, gas (such as nitrogen, argon, carbon dioxide and the like) or mixed working medium with the coke soup throttling coefficient larger than 0 can be adopted.
The external gas working medium enters the inlet channel from the inlet pipe 50, the gas working medium simultaneously enters the three high-pressure channel assemblies 20, enters the high-pressure throttling channel from the inlet groove channel and reaches the capacity expansion channel, and the gas working medium in the capacity expansion channel simultaneously enters the three low-pressure channel assemblies 30 and flows out from the outlet pipe 60 after passing through the low-pressure throttling channel, the outlet groove channel and the outlet channel.
High-pressure normal temperature gas enters the refrigerator from the inlet pipe 50, enters the high-pressure channel regenerative throttling section through the inlet section of the high-pressure channel assembly 20 to perform a coke tar throttling effect, is pre-cooled through the low-pressure channel regenerative throttling section of the high-pressure channel assembly 20, reaches the aim that the regenerative throttling low temperature is converged into the expansion cavity, exchanges heat with the outside in the expansion cavity through the low-pressure low-temperature gas, absorbs heat on an external radiator, and flows out of the refrigerator through the outlet pipe 60 after flowing through the low-pressure channel assembly 30.
An upper side plate and a lower side plate which have bearing capacity and have certain thickness are designed on the upper part and the lower part of the regenerative throttling refrigerator, and are welded with the high-low pressure channel into a whole through an atomic fusion welding process so as to ensure the integral bearing capacity of the refrigerator.
The manufacturing method of the channel plate groove comprises the following steps:
in the embodiment, stainless steel with high strength is selected as a substrate material of the micro-channel structure, a printed circuit board type manufacturing technology is applied to the scorch throttling refrigerator, a laser etching technology of the printed circuit board is adopted for the plate, the designed channel shape is transferred to the photoetching top photoresist layer through an exposure imaging principle, and then the surface of the corresponding stainless steel plate is etched, the acceptable etching channel shape is flexible, and a good minimum characteristic size can be formed. Therefore, the required zigzag microchannel plate is manufactured by adopting the laser etching technology of the printed circuit board. Then, the plates are contacted with each other by using an atomic diffusion fusion welding technology, and the atoms are diffused and recrystallized to form reliable connection.
Compared with the prior micro-channel refrigerator manufacturing technology, the micro-channel refrigerator manufacturing method has the advantages that:
1) the shape of a channel which can be etched by the laser etching technology of the printed circuit board is flexible, and the inclination angle of the channel and the number of the channels can be changed according to requirements;
2) the diffusion fusion welding technology can seamlessly overlap a plurality of heat exchange units, and the number of the plates can be adjusted according to specific heat exchange requirements;
3) the atom fusion welding process can basically eliminate the contact thermal resistance between the welded plates, the plates of all layers are superposed and combined into a whole, the formed refrigerator has good sealing and no additional thermal resistance at the combined part, and the heat exchange efficiency between the welded plates is increased.
Example two
A refrigeration apparatus for use with a refrigerator having a multi-form heat source using a microchannel throttling refrigerator of any one of the above.
In this embodiment, the refrigerating apparatus employs the microchannel throttling refrigerator of the first embodiment for the refrigerator of the heat source.
EXAMPLE III
The other structure of this embodiment is the same as that of the fourth embodiment, and the refrigeration device is any one of an infrared night vision device, an intracavity cryotherapy device and a tumor cryotherapy device.
The refrigeration device in this embodiment is an intracavity cryotherapeutic device.
Effects and effects of the embodiments
According to the heat regeneration throttling plate related to the embodiment, a plurality of zigzag folding line grooves which are arranged in parallel are arranged, the zigzag heat regeneration throttling assembly comprises two heat regeneration throttling plates which are overlapped up and down, the zigzag folding line grooves on the heat regeneration throttling plates are mutually staggered and communicated at the staggered position to form a heat regeneration throttling channel, zigzag corrugations in two plates are mutually inverted to form a net contact, a working medium forms net-shaped rotary net flow in the flowing process of the working medium in the channel, and the heat exchange efficiency between the plates and the working medium can be enhanced.
Furthermore, the zigzag structure can effectively reduce the influence of the axial heat conduction of the micro-channel metal material on the performance of the refrigerator. The heat exchange intensity between the high-pressure and low-pressure channels is improved, and the refrigerating capacity of the refrigerator is increased.
Furthermore, the loose small cylinders arranged at the inlet section play the roles of guiding airflow and supporting the channel.
Furthermore, the size of the section of the high-pressure and low-pressure channel and the size of an included angle between the channel and the horizontal direction can be determined by the physical property of working media in the channel and the heat exchange requirement and can be determined according to the processing limitation and the size requirement.
Furthermore, one micro-channel can be formed by a single high-low pressure heat exchange unit or a plurality of high-low pressure heat exchange units in an overlapping mode, and the number of layers of the heat exchange units is increased to increase the heat exchange channels on the plate, so that the heat exchange efficiency of the refrigerator is improved.
Furthermore, the micro-channels of the single plates are connected by adopting a stainless steel material and using a diffusion fusion welding technology, the number of the channels can be adjusted according to actual needs, the micro-channels are not limited to a single layer, and the refrigerating capacity can be amplified in parallel.
Further, utilize the even characteristic of heat dissipation of oscillating heat pipe in this embodiment, with the quick even dispersion of concentrated heat source heat to whole oscillating heat pipe, then take away the heat through the refrigeration of microchannel throttle refrigerator, thereby compound two kinds of refrigeration structure and reach more quick even refrigeration effect.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (6)
1. A compound cooling device with a zigzag microchannel throttling chiller, comprising:
the zigzag microchannel throttling refrigerator is provided with an expansion end; and
an oscillating hot pipe portion connected to the expansion end,
wherein the zigzag microchannel throttling refrigerator comprises a plurality of regenerative throttling components,
the regenerative throttling component comprises a first regenerative throttling component and a second regenerative throttling component which are overlapped up and down,
the first heat-recovery throttling component comprises two first heat-recovery throttling plates, a plurality of concave and communicated zigzag first folding grooves are arranged on the first heat-recovery throttling plates, the concave depth of the first folding grooves is less than the thickness of the first heat-recovery throttling plates, the first folding grooves on the two first heat-recovery throttling plates which are overlapped up and down and are oppositely arranged by the concave surfaces of the first folding grooves are mutually staggered and communicated at the staggered position,
the second regenerative throttling component comprises two second regenerative throttling plates, a plurality of concave and communicated zigzag second folding line grooves are arranged on the second regenerative throttling plates, the concave depth of the second folding line grooves is smaller than the thickness of the second regenerative throttling plates, the second folding line grooves on the two second regenerative throttling plates which are overlapped up and down and are oppositely arranged by the concave surfaces of the second folding line grooves are mutually staggered and communicated at the staggered position,
the oscillating heat pipe part comprises two overlapped oscillating heat pipe plates for uniformly distributing contacted heat sources, and a plurality of communicated U-shaped channels are arranged in the oscillating heat pipe plates.
2. The compound cooling device with the zigzag micro-channel throttling refrigerator as claimed in claim 1, wherein:
wherein the first heat-recovery throttling plate comprises an inlet section, a first channel section and a first expansion section which are connected in sequence,
the inlet section is provided with a first inlet hole, an inlet groove, a plurality of micro cylinders arranged on the inlet groove in an array mode and a first outlet hole, the first inlet hole is communicated with the inlet groove, the first outlet hole is not communicated with the inlet groove,
a plurality of first folding grooves which are concave and communicated are arranged on the first channel section, the first folding grooves are in a zigzag shape, the concave depth of the first folding grooves in the zigzag shape is smaller than the thickness of the first regenerative throttle plate, two end points of the first folding grooves are arranged along the length direction of the first channel section, one end of each first folding groove is communicated with the inlet groove, the other end of each first folding groove is communicated with the first expansion section, the first folding grooves are arranged in parallel along the width direction of the first channel section,
the first capacity expansion section is provided with a first capacity expansion hole which is communicated with the first channel section, one end of each of the first folding line grooves is intersected with the inlet groove to form a plurality of inlet openings, the other end of each of the first folding line grooves is intersected with the first capacity expansion hole to form a plurality of first capacity expansion openings,
the first heat-recovery throttling component comprises two first heat-recovery throttling plates which are overlapped up and down and are arranged in the first folding groove in a manner that the concave surfaces are opposite,
the two first inlet holes of two adjacent inlet sections are communicated with each other to form a first inlet channel, the two first outlet holes are communicated with each other to form a first outlet channel, the two inlet grooves are oppositely arranged to form a communicated inlet groove channel, a plurality of micro-cylinders in the inlet grooves of the upper plate and the lower plate are overlapped for supporting and guiding flow, the inlet groove channels are communicated with the inlet openings, the first fold line grooves on the two adjacent first channel sections are mutually staggered and communicated at the staggered position, the inlet openings are communicated with the first expansion ports to form a plurality of first heat recovery throttling channels, the first expansion holes of the adjacent first expansion sections are communicated to form a first expansion channel, and the first expansion channels are communicated with the first channel sections through the first expansion ports.
3. The compound cooling device with the zigzag micro-channel throttling refrigerator as claimed in claim 2, wherein:
wherein the second regenerative throttle plate comprises an outlet section, a second channel section and a second expansion section which are connected in sequence,
the outlet section is provided with a second through inlet hole, an outlet groove, a plurality of micro cylinders arranged on the outlet groove in an array mode and a second through outlet hole, the second outlet hole is communicated with the outlet groove, the second inlet hole is not communicated with the outlet groove,
the second channel section is provided with a plurality of concave and communicated second folding grooves which are in a zigzag shape, the concave depth of the second folding grooves is less than the thickness of the second regenerative throttle plate, two end points of the second folding grooves are arranged along the length direction of the second channel section, one end of each second folding groove is communicated with the outlet groove, the other end of each second folding groove is communicated with the second capacity expansion section, the second folding grooves in the zigzag shape are arranged in parallel along the width direction of the second channel section, and the second folding grooves and the outlet groove are intersected to form a plurality of outlet openings,
the second capacity expansion section is provided with a second through capacity expansion hole which is connected with the second channel section, a plurality of second fold line grooves are intersected with the second capacity expansion hole to form a plurality of second capacity expansion openings,
the second regenerative throttling component comprises two second regenerative throttling plates which are overlapped up and down and are arranged in the second folding groove with the concave surfaces facing each other,
the two second inlet holes of the adjacent outlet sections are communicated with each other to form a second inlet channel, the two second outlet holes are communicated with each other to form a second outlet channel, the two outlet grooves are oppositely arranged to form a communicated outlet groove channel, the plurality of micro cylinders in the outlet grooves of the upper plate and the lower plate are overlapped for supporting and guiding flow, the outlet groove channels are communicated with the outlet openings, the second fold grooves on the adjacent second channel sections are mutually staggered and communicated at the staggered position, the plurality of outlet openings are communicated with the plurality of second capacity expansion ports to form a plurality of second regenerative throttling channels, the second capacity expansion holes of the adjacent second capacity expansion sections are communicated to form a second capacity expansion channel, and the second capacity expansion channels are communicated with the second channel sections through the second capacity expansion ports.
4. The compound cooling device with the zigzag micro-channel throttling refrigerator as claimed in claim 3, wherein:
wherein, the zigzag microchannel throttling refrigerator comprises an upper cover plate, a plurality of heat recovery throttling components and a lower cover plate which are overlapped up and down in sequence,
the adjacent first inlet channel is communicated with the second inlet channel, the adjacent first outlet channel is communicated with the second outlet channel, the adjacent first capacity expansion channel is communicated with the second capacity expansion channel,
the external refrigeration medium flows in from the first inlet channel, enters the first regenerative throttling channel through the inlet slot channel and the inlet opening of the first channel section for throttling refrigeration, then flows into the first capacity expansion channel, reaches the cold end temperature in the first capacity expansion channel and the second capacity expansion channel, enters the second regenerative throttling channel from the second capacity expansion ports, and then flows out from the second outlet channel through the outlet slot channel.
5. A refrigeration apparatus, comprising:
comprising cooling means for cooling a plurality of forms of heat source,
the cooling device is the composite cooling device of claim 4.
6. The refrigeration appliance according to claim 5, wherein:
the refrigeration equipment is any one of an infrared night vision device, an inner cavity cryotherapy device and a tumor cryotherapy device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585586.0A CN108895696B (en) | 2018-06-08 | 2018-06-08 | Composite cooling device and equipment with zigzag microchannel throttling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585586.0A CN108895696B (en) | 2018-06-08 | 2018-06-08 | Composite cooling device and equipment with zigzag microchannel throttling refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108895696A CN108895696A (en) | 2018-11-27 |
| CN108895696B true CN108895696B (en) | 2020-06-09 |
Family
ID=64344491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810585586.0A Active CN108895696B (en) | 2018-06-08 | 2018-06-08 | Composite cooling device and equipment with zigzag microchannel throttling refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108895696B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110248527B (en) * | 2019-07-19 | 2023-11-07 | 江西耐乐铜业有限公司 | Production method of oxygen-free copper tube for mobile phone heat tube and mobile phone heat tube |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671230B1 (en) * | 1990-12-28 | 1993-04-16 | Telecommunications Sa | COOLING FINGER OF A SEMICONDUCTOR CIRCUIT AND CRYOGENIC DEVICE PROVIDED WITH SUCH A FINGER. |
| CN101782346B (en) * | 2010-01-14 | 2011-12-07 | 华南理工大学 | Heat exchange plate with alternate intercommunicating microchannel net structure and manufacturing method thereof |
| KR101590537B1 (en) * | 2014-07-29 | 2016-02-01 | 주식회사 블루인더스 | Vortex tube heat having insulation function |
| CN105486129A (en) * | 2015-12-24 | 2016-04-13 | 上海理工大学 | Micro-channel heat exchanger |
| CN105627609B (en) * | 2015-12-30 | 2017-10-13 | 上海理工大学 | Cylinder group's printed circuit board microchannel refrigerating plant |
| KR20170104428A (en) * | 2017-09-05 | 2017-09-15 | 김남주 | Open typed system for air cooling |
-
2018
- 2018-06-08 CN CN201810585586.0A patent/CN108895696B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108895696A (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2868999B1 (en) | Refrigeration cycle of refrigerator | |
| CN105627609A (en) | Refrigerating device for cylinder clustered printed circuit board type micro-channels | |
| CN110486973B (en) | Multi-stage precooling microchannel throttling heat exchange refrigerator with intermediate inlet | |
| KR20190058543A (en) | heat transmitter | |
| CN108759145B (en) | Backheating throttling assembly, combined micro-channel throttling refrigerator and device | |
| JP6961074B2 (en) | Distributor and heat exchanger | |
| JPWO2013172181A1 (en) | Heat exchanger and refrigeration cycle apparatus | |
| JP2018189352A (en) | Heat exchanger | |
| CN108759164B (en) | Composite cooling device and equipment with laminated cross type micro-channel throttling refrigerator | |
| JP2008533427A (en) | Heat exchanger arrangement | |
| JP4561305B2 (en) | Heat exchanger | |
| CN110486976B (en) | Two-stage laminated microchannel throttling refrigerator | |
| CN110486970B (en) | Multi-stage single-side precooling laminated microchannel throttling heat exchange refrigerator | |
| CN110486980B (en) | Micro-channel throttling refrigerator | |
| CN108895696B (en) | Composite cooling device and equipment with zigzag microchannel throttling refrigerator | |
| CN105758219A (en) | Printing plate type J-T effect cooling device | |
| CN108954887B (en) | Backheating throttle plate, assembly, W-shaped micro-channel throttling refrigerator and refrigerating device | |
| CN108895695B (en) | Heat regeneration throttle plate, assembly, polygonal hole-shaped micro-channel refrigerator and refrigerating device | |
| JP2023512439A (en) | plate heat exchanger | |
| JP2023512158A (en) | Cooling system and method of controlling the cooling system | |
| CN110486978B (en) | Array cylindrical group type multistage laminated microchannel throttling heat exchange refrigerator | |
| CN108800640B (en) | Backheating throttling assembly, combined micro-channel throttling refrigerator and device | |
| JP2003269822A (en) | Heat exchanger and refrigerating cycle | |
| CN108731312B (en) | Backheating throttling assembly, combined micro-channel throttling refrigerator and device | |
| CN108759165B (en) | Cooling device and equipment with polygonal hole staggered micro-channel throttling refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |