CN113720094B - Air cooling and gravity heat pipe coupling type cooling device and method - Google Patents

Air cooling and gravity heat pipe coupling type cooling device and method Download PDF

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Publication number
CN113720094B
CN113720094B CN202110886845.5A CN202110886845A CN113720094B CN 113720094 B CN113720094 B CN 113720094B CN 202110886845 A CN202110886845 A CN 202110886845A CN 113720094 B CN113720094 B CN 113720094B
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air
heat pipe
cooling
gravity
gravity heat
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CN113720094A (en
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黄东
孙瑜
谌文辉
赵日晶
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Xian Jiaotong University
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Xian Jiaotong University
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    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D2015/0216—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes having particular orientation, e.g. slanted, or being orientation-independent

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention discloses an air cooling and gravity heat pipe coupling type cooling device and a method, wherein the device comprises a back plate, an air cooling evaporator, a centrifugal fan, a lengthened air duct, a gravity heat pipe and a dividing wall type evaporator; two sides of the back plate are respectively provided with a back air duct and at least one chamber; the centrifugal fan is arranged in the compartment and fixed on the back plate, a fan air inlet of the centrifugal fan is communicated with the back air duct, an air outlet of the centrifugal fan is communicated with the lengthened air duct, and the lengthened air duct is provided with a plurality of air supply outlets; an air return opening is formed in the back plate; the air return inlet is communicated with the back air duct; the gravity heat pipe is provided with a horizontal section and a vertical section, the horizontal section is arranged in a compartment where the lengthened air channel is located, the gravity heat pipe is provided with a base and arc fins at intervals, the vertical section is connected with the dividing wall type evaporator, and the dividing wall type evaporator is connected with the air cooling evaporator through a connecting pipe. The cooling efficiency of the beer is improved and the cooling uniformity among the beers is improved by combining air cooling with direct cooling of the gravity heat pipe.

Description

Air cooling and gravity heat pipe coupling type cooling device and method
Technical Field
The invention belongs to the field of refrigeration technology and equipment, and particularly relates to an air cooling and gravity heat pipe coupling type cooling device and method.
Background
With the higher and higher requirements on beer, the over-high temperature of the beer can quickly decompose carbon dioxide in the beer, and the beer is bitter and flat; if the temperature is too low, people feel numb and the volatile flavor components peculiar to beer cannot be displayed. The best drinking temperature of the beer is about 10-15 ℃, the foam is the most abundant at 10 ℃, and the beer is fine and durable, has strong aroma and comfortable taste.
The beer is preserved mainly in a vertical refrigerator, the refrigeration mode is mainly air cooling, the heat transfer efficiency is not high, the cooling speed of the beer is slow, the cooling from the normal temperature to the optimal drinking temperature needs more than 1 hour, and the cooling time of a large amount of bulk beer is even more than 2 hours, so more and more high-grade consumers are not satisfied.
Disclosure of Invention
The invention provides an air cooling and gravity heat pipe coupling type cooling device and method, and the device improves the cooling efficiency of beer and the cooling uniformity among the beer by combining air cooling and gravity heat pipe direct cooling, and meets the requirement of cooling a large amount of bulk beer from normal temperature to the optimal drinking temperature in a short time.
The purpose of the invention is realized by the following technical scheme:
a wind cooling and gravity heat pipe coupling type cooling device comprises a rear back plate, a wind cooling evaporator, a centrifugal fan, a lengthened air duct, a gravity heat pipe and a dividing wall type evaporator;
two sides of the back plate are respectively provided with a back air duct and at least one chamber;
the air cooling evaporator is arranged in the back air duct, the centrifugal fan is arranged in the compartment and fixed on the back plate, a fan air inlet of the centrifugal fan is communicated with the back air duct, an air outlet of the centrifugal fan is communicated with the lengthened air duct, and the lengthened air duct is provided with a plurality of air supply outlets; an air return opening is formed in the back plate; the air return inlet is communicated with the back air duct;
the gravity heat pipe is provided with a horizontal section and a vertical section, the horizontal section is arranged in a compartment where the lengthened air channel is located, the gravity heat pipe is provided with a base and arc fins at intervals, the vertical section is connected with the dividing wall type evaporator, and the dividing wall type evaporator is connected with the air cooling evaporator through a connecting pipe.
As a further improvement of the invention, the chamber comprises at least a first chamber and a second chamber, and the first chamber and the second chamber are separated by an orifice plate partition plate; the air outlet of the air-cooled evaporator is connected with a flow guide clapboard, and the flow guide clapboard is used for dividing airflow into two parts and sending the airflow to a first centrifugal fan of the first chamber and a second centrifugal fan of the second chamber;
the first chamber and the second chamber are respectively provided with a first gravity heat pipe and a second gravity heat pipe.
As a further improvement of the invention, the flow guide partition plate is of a folded type and is arranged above the air-cooled evaporator and at the air inlet of the fan of the second centrifugal fan.
As a further improvement of the invention, two first centrifugal fans are symmetrically arranged on the back plate where the first chamber is located; the second centrifugal fan is only one and is arranged on the backboard where the second chamber is located in the middle.
As a further improvement of the invention, the opening direction of the air supply outlets corresponds to the base and the arc fins, and the number of the air supply outlets is consistent with the number of the rows of the base.
As a further improvement of the invention, the gravity heat pipe is an L-shaped microchannel gravity heat pipe, a plurality of flow channels which are arranged in an array are arranged in the gravity heat pipe along the L-shaped direction, and the flow channels are not communicated with each other.
As a further improvement of the invention, the horizontal section of the gravity heat pipe is tightly attached to the heat conducting plate; if the gravity heat pipe is positioned in the back air duct, the horizontal section of the gravity heat pipe is tightly attached to the heat insulation plate.
As a further improvement of the invention, the arc fins and the base are formed into a group of article placing frames, and the arc fins and the base are obliquely arranged with the vertical direction.
As a further improvement of the invention, the base surface is convex.
A cooling method of an air cooling and gravity heat pipe coupling type cooling device comprises the following steps:
after being cooled by the air-cooled evaporator, the airflow is sucked by the centrifugal fan and blown to the compartment from a plurality of air supply outlets of the lengthened air duct; after mixing, the compartment air flow flows to the air-cooled evaporator again through the air return opening to form air-cooled circulation;
the vertical section of the gravity heat pipe and the dividing wall type evaporator carry out contact type refrigeration, the horizontal section longitudinally transfers the cooling capacity in the compartment, and the circular arc fin and the base arranged on the horizontal section carry out contact type refrigeration.
Compared with the background art, the invention has the following beneficial effects:
the invention relates to an air cooling and gravity heat pipe coupling type cooling device, wherein airflow is cooled by an air cooling evaporator, then sucked by a centrifugal fan, blown to beer from a plurality of air supply outlets of a lengthened air duct, and after the beer is cooled, the airflow in a compartment is mixed and then cools the beer, and then the mixture flows to the air cooling evaporator through a return air inlet. A plurality of gravity heat pipes are arranged in the wine cabinet, the tops of the vertical sections of the heat pipes are clamped by a dividing wall type evaporator to carry out contact type refrigeration, a large heat conducting plate is tightly attached to the upper portion of the horizontal section to cover the heat pipes in the dividing chamber, and therefore the cold quantity between the evaporation sections of the heat pipes is longitudinally transferred. According to the invention, air cooling and gravity heat pipe refrigeration are combined, the transmission efficiency of cooling capacity is improved and the cooling rate of beer is accelerated by the design of structures such as the heat conducting plate and the fins, and the cooling uniformity of beer in different rooms is realized by the design of airflow distribution structures such as the guide plate.
Further, the heat-conducting plate is provided with the arc fins and the wine bottle bases, the arc fins and the wine bottle bases are consistent with the beer in number, the included angle between the arc fins and the vertical direction is 30 degrees, the beer can be placed in an inclined mode, so that the beer can be in close contact with the arc fins by means of gravity, and the heat exchange efficiency is improved.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cooperation of the dividing wall evaporator with the heat pipe and the air-cooled evaporator;
FIG. 3 is a schematic view of the manner in which the heat pipe contacts the beer;
FIG. 4 is a schematic view of a cold gas flow cooling beer mode;
in the figure: 1. the device comprises a first chamber, a second chamber, a third chamber, a fourth chamber, a fourth chamber, a fourth chamber, a fourth chamber, a fourth, a; 6. a second separator; 7. the heat insulation board comprises a lengthened air duct, 8, a first centrifugal fan, 9, a second centrifugal fan, 10, a back backboard, 11, an air cooling evaporator, 12, a flow guide partition board, 13, a dividing wall type evaporator, 14, a connecting pipe, 15, a first gravity heat pipe, 16, a second gravity heat pipe, 17, an air supply outlet, 18, an air return opening, 19, a back air duct, 20, beer, 21, a heat conduction plate, 22, a heat insulation board, 23, a fan air inlet, 24, a wine bottle base, 25 and a pore board partition board.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, fall within the scope of the invention.
As shown in fig. 1, an air-cooled and gravity heat pipe coupled cooling device includes a back plate 10, an air-cooled evaporator 11, a centrifugal fan, a lengthened air duct 7, a gravity heat pipe and a dividing wall type evaporator 13;
two sides of the rear back plate 10 are respectively provided with a rear air duct 19 and at least one chamber;
the air-cooled evaporator 11 is arranged in the back air duct 19, the centrifugal fan is arranged in the compartment and fixed on the back plate 10, a fan air inlet 23 of the centrifugal fan is communicated with the back air duct 19, an air outlet of the centrifugal fan is communicated with the lengthened air duct 7, and the lengthened air duct 7 is provided with a plurality of air supply outlets 17; an air return opening 18 is formed in the back plate 10; the air return opening 18 is communicated with the back air duct 19;
the gravity heat pipe is provided with a horizontal section and a vertical section, the horizontal section is arranged in a compartment where the lengthened air duct 7 is located, the base 24 and the arc fins 4 are arranged on the gravity heat pipe at intervals, the vertical section is connected with the dividing wall type evaporator 13, and the dividing wall type evaporator 13 is connected with the air cooling evaporator 11 through the connecting pipe 14.
The apparatus of the present invention will be described in detail with reference to specific examples.
Referring to fig. 1, the present invention provides an air-cooling and gravity assisted heat pipe coupled cooling device, which includes a first chamber 1, a second chamber 2, a third chamber 3, an arc fin 4, and a first partition plate 5; a second partition plate 6; the device comprises a lengthened air duct 7, a first centrifugal fan 8, a second centrifugal fan 9, a back plate 10, an air cooling evaporator 11, a flow guide partition plate 12, a dividing wall type evaporator 13, a connecting pipe 14, a first gravity heat pipe 15, a second gravity heat pipe 16, an air supply outlet 17, an air return inlet 18, a back air duct 19, beer 20, a wine bottle base 24 and a pore plate partition plate 25.
The air-cooled evaporator 11 is divided into two parts by the diversion partition plate 12 after being cooled, the two parts are respectively sucked by the first centrifugal fan 8 and the second centrifugal fan 9, the air is blown to beer 20 from the plurality of air supply outlets 17 of the lengthened air duct 7, the air flow of the first chamber 1 and the air flow of the second chamber 2 are mixed and then flow to the air-cooled evaporator 11 again through the air return inlet 18, the top parts of the vertical sections of the first gravity heat pipe 15 and the second gravity heat pipe 16 are clamped by the bulkhead type evaporator 13, and the horizontal sections are provided with the arc fins 4 and the wine bottle base 24.
The diversion baffle plate 12 is designed into a folded shape and is arranged above the air-cooled evaporator 11 and at a fan air inlet 23 of the second centrifugal fan 9.
The first centrifugal fans 8 are two and arranged symmetrically, while the second centrifugal fan is only one and arranged centrally.
The lengthened air duct 7 is provided with a plurality of air supply ports 17, the opening directions of the air supply ports respectively correspond to the beer 20 at the bottom, and the number of the air supply ports 17 is consistent with the number of the lines of the beer 20.
The orifice plate partition 25 is located between the first chamber and the second chamber, and the orifice plate partition 25 is provided with a plurality of small holes through which the cold air flow of the first chamber 1 can flow into the second chamber 2.
The first gravity heat pipe 15 and the second gravity heat pipe 16 are both L-shaped microchannel gravity heat pipes, and a plurality of flow channels arranged in an array are arranged inside the first gravity heat pipe and the second gravity heat pipe along the L-shaped direction, and the flow channels are not communicated with each other. The first gravity heat pipe 15 is completely positioned in the first compartment 1, the vertical section of the first gravity heat pipe is positioned below the first centrifugal fan 8, the top of the first gravity heat pipe is clamped by the two dividing wall type evaporators 13, a large part of the left side of the horizontal section of the second gravity heat pipe 16 is positioned in the second compartment 2, a small part of the right side of the horizontal section of the second gravity heat pipe 16 is positioned in the back air duct 19 and right below the air cooling evaporator 11, the vertical section of the second gravity heat pipe 16 is completely positioned in the third compartment 3, and the top of the second gravity heat pipe is also clamped by the two dividing wall type evaporators 13. The first gravity heat pipes 15 and the second gravity heat pipes 16 are arranged at equal intervals along the longitudinal direction, and the number of the heat pipes is consistent with the number of the rows of the beer 20 in the chamber. Preferably, the horizontal section of the first gravity heat pipe 15 and the second gravity heat pipe 16 are respectively and closely attached to a heat conducting plate 21 with high heat conductivity coefficient above the horizontal section part in the second compartment 2, so as to cover the plurality of heat pipes, and the second gravity heat pipe 16 is located above the horizontal section part in the back air duct 19 and closely attached to a heat insulating plate 22 with low heat conductivity coefficient.
The arc fins 4 and the wine bottle base 24 are arranged on the heat conducting plate 21, one arc fin 4 and one wine bottle base 24 form a group and are consistent with the beer 20 in quantity, and the arc fins 4 and the wine bottle base 24 are obliquely arranged at an angle of 30 degrees with the vertical direction. The body of the beer 20 is tightly attached to the arc-shaped fin 4, the bottom of the beer 20 is tightly attached to the wine bottle base 24, the surface of the wine bottle base 24, which is in contact with the beer 20, is convex, and the concave part of the bottom of the beer 20 is just matched with the convex part of the wine bottle base 24.
A first partition 5 is arranged above the first compartment 1 and a second partition 6 is arranged between the back air duct 19 and the third compartment 3.
The principle of the device is as follows:
the air flow is divided into two parts by the diversion partition plate after being cooled by the air cooling evaporator, the two parts are respectively sucked by the first centrifugal fan and the second centrifugal fan, and blown to beer from a plurality of air supply outlets of the lengthened air duct, the air flow in the first chamber flows into the second chamber through the orifice plate partition plate after cooling the beer, the air flows in the two chambers are mixed and then cool the beer, and then the air flow flows to the air cooling evaporator again through the air return inlet, so that the air cooling circulation is formed. In addition, a plurality of gravity heat pipes are arranged in the wine cabinet, the vertical section tops of the heat pipes are clamped by a partition wall type evaporator, contact type refrigeration is carried out, a large heat-conducting plate is tightly attached to the upper portion of the horizontal section, the heat pipes of the partition chamber are covered, and longitudinal cold quantity transmission between the evaporation sections of the heat pipes is carried out, arc fins and wine bottle bases consistent with the quantity of beer are arranged on the heat-conducting plate, the arc fins and the wine bottle bases are obliquely arranged at an included angle of 30 degrees with the vertical direction, the beer can be obliquely placed, so that the beer is in close contact with the arc fins by means of gravity, and the heat exchange efficiency is enhanced. According to the invention, air cooling and gravity heat pipe direct cooling are combined, so that the heat transfer efficiency can be improved, the cooling rate of beer is increased, and the cooling uniformity of a large amount of bulk beer is improved; meanwhile, the cold accumulation function of the gravity heat pipe can enable the temperature of the wine cabinet to be more stable during shutdown or defrosting, the evaporation temperature of the heat pipe and the cold quantity transferred by the beer can be easily controlled, and the beer can be effectively guaranteed to be cooled to the optimal drinking temperature in a short time without being overcooled, so that the taste is not influenced, and the cold quantity is wasted.
The method for quickly and uniformly cooling a large amount of bulk beer by the air cooling and gravity heat pipe coupled cooling device in the embodiment comprises the following steps:
after being cooled by the air-cooled evaporator 11, the airflow is sucked by the centrifugal fan and blown to the compartment from a plurality of air supply outlets 17 of the lengthened air duct 7; after mixing, the air flow in the compartment flows to the air-cooled evaporator 11 again through the air return port 18 to form air-cooled circulation;
the vertical section of the gravity heat pipe and the dividing wall type evaporator carry out contact type refrigeration, the horizontal section longitudinally transfers the cooling capacity in the compartment, and the circular arc fin and the base arranged on the horizontal section carry out contact type refrigeration.
The specific process is as follows:
the air flow is divided into two parts by the diversion partition plate after being cooled by the air cooling evaporator, the two parts are respectively sucked by the first centrifugal fan and the second centrifugal fan, and blown to beer from a plurality of air supply outlets of the lengthened air duct, the air flow in the first chamber flows into the second chamber through the orifice plate partition plate after cooling the beer, the air flows in the two chambers are mixed and then cool the beer in the second chamber together, and then the mixed air flows to the air cooling evaporator again through the air return inlet. In addition, a plurality of first gravity heat pipes and second gravity heat pipes are arranged in the wine cabinet and carry out contact type refrigeration with the beer.
Furthermore, the diversion baffle plate is designed to be of a folding type and is arranged above the air-cooled evaporator and at the air inlet of the fan of the second centrifugal fan, the proportion of the left and right sectional areas can be adjusted by adjusting the position where the bottom of the diversion baffle plate props against the air-cooled evaporator, the redistribution of the cold air flow at the outlet of the evaporator is realized, and the proportion of the cold air flow entering the upper layer and the lower layer is controlled.
Furthermore, only one second centrifugal fan is arranged in the second chamber in the middle, so that airflow interaction at the center junction caused by symmetrical arrangement of the two fans is avoided, and further vortex is formed to cause airflow loss; the first centrifugal fans are arranged in the first chamber symmetrically, so that space is saved for the first gravity heat pipe right below the first centrifugal fans.
Furthermore, the orifice plate partition plate is positioned between the first chamber and the second chamber, a plurality of small holes are arranged on the orifice plate partition plate, cold air flow of the first chamber can flow into the second chamber through the small holes after the beer is cooled, the air flows of the two chambers are mixed to cool the beer in the second chamber, and then the mixture flows to the air-cooled evaporator through the air return opening again.
Furthermore, the first partition plate is positioned above the first chamber, and if more beer needs to be placed, the structure of the existing wine cabinet can be completely copied and arranged above the first partition plate.
Furthermore, in the refrigerant flow, the existing 4 dividing wall type evaporators and the air cooling evaporators are connected in series and are communicated with each other by connecting pipes, and if an existing wine cabinet is copied above the first partition plate, the copied 4 dividing wall type evaporators and the air cooling evaporators are also connected in series but are connected in parallel with the existing dividing wall type evaporators and the air cooling evaporators.
Furthermore, the second partition plate is positioned between the back air duct and the third chamber to block cold air flow in the back air duct.
Referring to fig. 2, the first gravity heat pipe and the second gravity heat pipe are both L-shaped microchannel gravity heat pipes, and a plurality of flow channels arranged in an array are arranged inside the first gravity heat pipe and the second gravity heat pipe along the L-shaped direction, and the flow channels are not communicated with each other.
Furthermore, the heat conducting plate is tightly attached to the horizontal section of the first gravity heat pipe, and the second gravity heat pipe is positioned above the horizontal section part in the second chamber and covers the plurality of heat pipes, so that longitudinal cold quantity transmission among the evaporation sections of the heat pipes is realized.
Furthermore, the heat insulation plate is tightly attached to the second gravity heat pipe and is positioned above the horizontal section part in the back air duct, so that the influence of cold air flow of the air return opening on the second gravity heat pipe is avoided, and an evaporation section, a heat insulation section and a condensation section of the second gravity heat pipe are formed.
Referring to fig. 2, 3 and 4, the first gravity assisted heat pipe is located in the first chamber, the vertical section of the first gravity assisted heat pipe is located below the first centrifugal fan, and the top of the first gravity assisted heat pipe is clamped by the two dividing wall type evaporators; the left part of the horizontal section of the second gravity heat pipe is arranged in the second compartment, the right part of the horizontal section of the second gravity heat pipe is arranged in the back air duct and right below the air-cooled evaporator, the vertical section of the second gravity heat pipe is completely arranged in the third compartment, and the top of the vertical section of the second gravity heat pipe is also clamped by the two partition wall type evaporators.
Furthermore, the first gravity heat pipes and the second gravity heat pipes are longitudinally arranged at equal intervals, and the number of the heat pipes is consistent with that of the beer in the chamber.
Referring to fig. 3, circular arc fin and beverage bottle base all are 30 degrees slopes with vertical direction, arrange on the heat-conducting plate, and quantity is unanimous with beer, so can make beer slope place to beer relies on gravity and carries out in close contact with circular arc fin, reinforcing heat exchange efficiency.
Furthermore, the upper surface of the wine bottle base is convex and just fits with the concave surface of the bottom of the beer, so that the beer is placed more stably, and the contact area is larger.
Referring to fig. 4, the lengthened air duct 7 is provided with a plurality of air supply ports 17, the opening directions of the air supply ports respectively correspond to the beer 20 at the bottom, and the number of the air supply ports is consistent with the number of the rows of the beer 20.
The invention has the beneficial effects that:
the heat conducting plate, the arc fins and other structures are designed in a mode of combining air cooling and gravity heat pipe direct cooling, so that the heat transfer efficiency can be improved, the cooling rate of beer is increased, and the cooling uniformity of a large amount of bulk beer is improved through airflow distribution structures such as a flow guide partition plate, an orifice plate partition plate and the like; the cold accumulation function of the gravity heat pipe can enable the temperature of the wine cabinet to be more stable during shutdown or defrosting, the evaporation temperature of the heat pipe and the cold quantity transferred by beer can be controlled more easily, and the beer can be effectively ensured to be cooled to the optimal drinking temperature in a short time without being overcooled, so that the taste is influenced, and the cold quantity is wasted.
Finally, it should be noted that the present invention is not limited to rapid cooling of beer, but can also be used for rapid cooling of other beverages.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the pending claims along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicant consider that such subject matter is not considered part of the disclosed subject matter.

Claims (10)

1. An air cooling and gravity heat pipe coupling type cooling device is characterized by comprising a rear back plate (10), an air cooling evaporator (11), a centrifugal fan, a lengthened air duct (7), a gravity heat pipe and a dividing wall type evaporator (13);
two sides of the rear back plate (10) are respectively provided with a rear air duct (19) and at least one chamber;
the air-cooled evaporator (11) is arranged in the back air duct (19), the centrifugal fan is arranged in the compartment and fixed on the back plate (10), a fan air inlet (23) of the centrifugal fan is communicated with the back air duct (19), an air outlet of the centrifugal fan is communicated with the lengthened air duct (7), and the lengthened air duct (7) is provided with a plurality of air supply outlets (17); an air return opening (18) is formed in the rear back plate (10); the air return port (18) is communicated with the back air duct (19);
the gravity heat pipe is provided with a horizontal section and a vertical section, the horizontal section is arranged in a compartment where the lengthened air duct (7) is located, a base (24) and an arc fin (4) are arranged on the gravity heat pipe at intervals, the vertical section is connected with the dividing wall type evaporator (13), and the dividing wall type evaporator (13) is connected with the air-cooled evaporator (11) through a connecting pipe (14).
2. The air-cooled and gravity assisted heat pipe coupled cooling device according to claim 1, wherein the compartments comprise at least a first compartment (1) and a second compartment (2), and the first compartment (1) and the second compartment (2) are separated by an orifice plate partition (25); an air outlet of the air-cooled evaporator (11) is connected with a flow guide partition plate (12), and the flow guide partition plate (12) is used for dividing air flow into two parts and sending the air flow to a first centrifugal fan (8) of the first compartment (1) and a second centrifugal fan (9) of the second compartment (2);
the first chamber (1) and the second chamber (2) are respectively provided with a first gravity heat pipe (15) and a second gravity heat pipe (16).
3. The air-cooling and gravity assisted heat pipe coupled cooling device according to claim 2, wherein the baffle plate (12) is folded and arranged above the air-cooling evaporator (11) and at the fan inlet (23) of the second centrifugal fan (9).
4. The air-cooling and gravity assisted heat pipe coupled cooling device according to claim 2, wherein the number of the first centrifugal fans (8) is two, and the two first centrifugal fans are symmetrically arranged on the rear back plate (10) where the first compartment (1) is located; the second centrifugal fan is only one and is arranged on the backboard (10) where the second chamber (2) is located in the middle.
5. The air-cooling and gravity assisted heat pipe coupled cooling device according to claim 1, wherein the opening direction of the air supply ports (17) corresponds to the base (24) and the circular arc fins (4), and the number of the air supply ports (17) is consistent with the number of the rows of the base (24).
6. The air-cooling and gravity heat pipe coupled cooling device according to claim 1, wherein the gravity heat pipe is an L-shaped microchannel gravity heat pipe, and a plurality of flow channels are arranged in an array along the L-shaped direction inside the gravity heat pipe, and the flow channels are not communicated with each other.
7. The air-cooled and gravity assisted heat pipe coupled cooling device according to claim 1, wherein the horizontal section of the gravity assisted heat pipe is tightly attached to the heat conducting plate (21); if the gravity heat pipe is positioned in the back air duct (19), the horizontal section of the gravity heat pipe is tightly attached to the heat insulation plate (22).
8. The air-cooling and gravity assisted heat pipe coupled cooling device according to claim 1, wherein the circular arc fins (4) and the base (24) constitute a set of storage racks, and the circular arc fins (4) and the base (24) are both arranged in an inclined manner with respect to the vertical direction.
9. The air-cooled and gravity assisted heat pipe coupled cooling device according to claim 1, wherein the surface of the base (24) is convex.
10. The cooling method of the air-cooling and gravity heat pipe coupled cooling device according to claim 1, comprising the steps of:
the air flow is cooled by an air-cooled evaporator (11), then is sucked by a centrifugal fan and is blown to the compartment from a plurality of air supply outlets (17) of the lengthened air duct (7); after mixing, the air flow in the compartment flows to the air-cooled evaporator (11) again through the air return opening (18) to form air-cooled circulation;
the vertical section of the gravity heat pipe and the dividing wall type evaporator carry out contact type refrigeration, the horizontal section longitudinally transfers the cooling capacity in the compartment, and the circular arc fin and the base arranged on the horizontal section carry out contact type refrigeration.
CN202110886845.5A 2021-08-03 2021-08-03 Air cooling and gravity heat pipe coupling type cooling device and method Active CN113720094B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87213525U (en) * 1987-09-17 1988-04-13 郑万烈 Semiconductor refrigerator for adopting separative hot tube
JPH0777374A (en) * 1993-07-14 1995-03-20 Showa Alum Corp Warming and cold storage box
CN103575014A (en) * 2012-06-28 2014-02-12 超级制冷器有限公司 Supercooling freezer and method for controlling supercooling freezer
CN106605118A (en) * 2014-08-25 2017-04-26 西尔万资源公司 Heat capture, transfer and release for industrial applications
CN107687733A (en) * 2017-07-25 2018-02-13 青岛海尔股份有限公司 Single system wind cooling refrigerator
JP2019212873A (en) * 2018-06-08 2019-12-12 古河電気工業株式会社 Heat sink
CN110645760A (en) * 2019-10-30 2020-01-03 福建工程学院 Energy storage type air-cooled frost-free refrigerator and defrosting method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87213525U (en) * 1987-09-17 1988-04-13 郑万烈 Semiconductor refrigerator for adopting separative hot tube
JPH0777374A (en) * 1993-07-14 1995-03-20 Showa Alum Corp Warming and cold storage box
CN103575014A (en) * 2012-06-28 2014-02-12 超级制冷器有限公司 Supercooling freezer and method for controlling supercooling freezer
CN106605118A (en) * 2014-08-25 2017-04-26 西尔万资源公司 Heat capture, transfer and release for industrial applications
CN107687733A (en) * 2017-07-25 2018-02-13 青岛海尔股份有限公司 Single system wind cooling refrigerator
JP2019212873A (en) * 2018-06-08 2019-12-12 古河電気工業株式会社 Heat sink
CN110645760A (en) * 2019-10-30 2020-01-03 福建工程学院 Energy storage type air-cooled frost-free refrigerator and defrosting method thereof

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