CN113357863A - Stirling cold insulation equipment - Google Patents
Stirling cold insulation equipment Download PDFInfo
- Publication number
- CN113357863A CN113357863A CN202110546215.3A CN202110546215A CN113357863A CN 113357863 A CN113357863 A CN 113357863A CN 202110546215 A CN202110546215 A CN 202110546215A CN 113357863 A CN113357863 A CN 113357863A
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- cold
- thermosiphon
- cold insulation
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- stirling
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- 238000009413 insulation Methods 0.000 title claims abstract description 75
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims description 60
- 239000003507 refrigerant Substances 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 13
- 238000009835 boiling Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
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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
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a Stirling cold insulation device, which comprises a cold insulation container and a Stirling refrigerator, wherein a cold head of the Stirling refrigerator is arranged at a distance from the cold insulation container; the cold insulation equipment further comprises a heat transfer assembly, wherein the heat transfer assembly comprises a first thermosiphon and a second thermosiphon; the first thermal siphon and the second thermal siphon are fixedly connected to the cold head and are arranged around the periphery of the cold-keeping container; the first thermosiphon is disposed at a position higher than the second thermosiphon, and a cooling capacity Q1 of the first thermosiphon is smaller than a cooling capacity Q2 of the second thermosiphon to uniformly cool an object placed in the cold-holding container. The Stirling cold insulation equipment of this application can solve cold insulation equipment cooling slow, the uneven problem of upper and lower direction upper temperature distribution.
Description
Technical Field
The invention relates to the technical field of Stirling refrigeration, in particular to Stirling cold insulation equipment.
Background
The thermosiphon as a heat exchange device has the characteristics of high heat exchange efficiency, no moving part and no need of additional energy drive, and the aim of high-efficiency heat transfer is realized by filling refrigerant in the pipeline of the thermosiphon and through the spontaneous flow and phase change process of the refrigerant working medium. The thermosiphon is widely applied to the fields of aerospace, solar heat collection, heat energy recovery and cold chain transportation.
The prior thermosiphon pipes are used as a loop single refrigerant working medium in the cold energy conveying mode of the refrigerator, and the design can be understood by combining the Stirling cold insulation equipment disclosed in the patent application CN 202020220607.1. Under specific working conditions, the thermosiphon can only exchange heat according to a certain power. When the refrigerator is used, the heat loads of different parts are different, and the design of a single refrigerant in a loop cannot enable the refrigerator body to be quickly reduced to uniform and stable temperature. In view of this, the present application is specifically made.
Disclosure of Invention
The invention aims to solve the technical problem of how to quickly reduce the temperature of cold insulation equipment to a uniform and stable temperature.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the Stirling cold insulation equipment comprises a cold insulation container and a Stirling refrigerator, wherein a cold head of the Stirling refrigerator is arranged at a distance from the cold insulation container; the cold insulation equipment further comprises a heat transfer assembly, wherein the heat transfer assembly comprises a first thermosiphon and a second thermosiphon; the first thermal siphon and the second thermal siphon are fixedly connected to the cold head and are arranged around the periphery of the cold-keeping container; the first thermosiphon is disposed at a position higher than the second thermosiphon, and a cooling capacity Q1 of the first thermosiphon is smaller than a cooling capacity Q2 of the second thermosiphon to uniformly cool an object placed in the cold-holding container.
Preferably, the boiling point of the refrigerant in the first thermosiphon is smaller than the boiling point of the refrigerant in the second thermosiphon.
Preferably, the pipe diameter of the first thermosiphon is smaller than that of the second thermosiphon.
Preferably, the first thermosiphon is horizontally disposed around a portion of the outer circumference of the cold-holding container.
Preferably, the second thermosiphon extends from the cold head down to the lower part of the cold-holding container and around the periphery of the cold-holding container.
Preferably, the second thermosiphon includes a first connection section, a first refrigeration section, a second refrigeration section, a third refrigeration section, a fourth refrigeration section, a fifth refrigeration section and a second connection section, the first connection section and the second connection section are fixedly connected to the cold head, the first refrigeration section, the second refrigeration section, the third refrigeration section, the fourth refrigeration section and the fifth refrigeration section are sequentially connected in series between the first connection section and the second connection section, and an included angle α of the first refrigeration section with respect to a horizontal plane is greater than an included angle β of the fourth refrigeration section with respect to a horizontal plane.
Preferably, the first refrigeration section extends obliquely from top to bottom, and the fourth refrigeration section extends obliquely from bottom to top.
Preferably, the fourth refrigeration stage is provided at an outer periphery of a side wall adjacent to a rear side wall of the cold-holding container to uniformly refrigerate the liquid placed in the cold-holding container when the liquid is poured backward.
Preferably, the included angle α is 50 °, and the included angle β is 30 °.
Preferably, the second refrigeration section, the third refrigeration section and the fifth refrigeration section are all horizontally arranged.
Preferably, the first refrigeration section and the fifth refrigeration section are both disposed at the rear side of the cold insulation container to uniformly refrigerate the liquid placed in the cold insulation container when the liquid is tipped backward.
Preferably, a cold end adapter is fixedly connected to the refrigeration head, the cold end adapter includes a first cold conducting portion and a second cold conducting portion, and the second cold conducting portion is disposed above the first cold conducting portion.
Preferably, the first thermosiphon is fixedly connected to the first cold conducting portion, and the second thermosiphon is fixedly connected to the second cold conducting portion.
Preferably, the second cold conducting portion has a larger thickness than the first cold conducting portion, and the first cold conducting portion has a flat shape.
Preferably, the inner wall of the first and/or second thermosiphon has a rib protruded to increase a refrigerant contact area.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the application discloses stirling cold insulation equipment, first, second thermosiphon have different heat transfer efficiency, distribute in the outer wall of cold insulation container along upper and lower direction, and are cooled down by same stirling refrigerator, and will obviously promote cold insulation equipment's refrigeration speed and temperature homogeneity, fully solve cold insulation equipment cooling slow, the upper and lower uneven problem of temperature distribution in the direction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
Fig. 1 to 5 are schematic views respectively showing stirling cold insulation equipment of a next embodiment from different viewing angles;
FIG. 6 depicts an exploded view of an embodiment of a Stirling cold insulation device;
FIG. 7 depicts a schematic view of the inner wall of an embodiment of a thermosiphon;
FIG. 8 is a diagram showing the communication between the second thermosiphon and the second cold conductor;
fig. 9 to 11 are schematic views of the stirling cooler with the cooling container omitted from the views shown in different views;
fig. 12 shows a schematic diagram of a user dragging and lifting a stirling cooler device;
fig. 13 is a schematic view showing the state where the cold insulation container 1 containing the liquid is tilted when the stirling cold insulation apparatus is raised.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
With reference to fig. 1 to 6, in one embodiment, the stirling cold insulation apparatus of the present application includes a cold insulation container 1, a stirling cooler 2, a first thermosiphon 3 and a second thermosiphon 4, the first thermosiphon 3 and the second thermosiphon 4 are located between the cold insulation container 1 and the stirling cooler 2 and are independent of each other (i.e., they form a parallel heat transfer loop), and constitute a heat transfer component for transferring heat out of the cold insulation container 1, the first thermosiphon 3 and the second thermosiphon 4 are both fixed to a cold head of the stirling cooler 2 and are both disposed around an outer periphery of the cold insulation container 1, the first thermosiphon 3 is disposed at a position above the second thermosiphon 4, and a cooling amount Q1 of the first thermosiphon 3 is smaller than a cooling amount Q2 of the second thermosiphon 4 to uniformly cool an object placed in the cold insulation container 1. The cold insulation container 1 has a receiving space for receiving articles to be stored, and the outer peripheral wall thereof may be provided with a heat insulation assembly (not shown), and the heat insulation assembly is used together with the cold insulation container as understood by reference to patent application CN202020220607.1, which is not described herein again.
Stirling refrigerator 2 contains organism 2A, cold head 2B, first lead cold portion 2C and second and lead cold portion 2D, and cold head 2B is located organism 2A upside and separates the setting with cold insulation container 1, and first lead cold portion 2C installs on cold head 2B, and cold portion 2D configuration is led in first lead cold portion 2C top to the second, and first lead cold portion 2C and second lead cold portion 2D and belong to the part of rigid coupling at cold end adapter of cold head 2B. The machine body 2A has a stirling machine structure (not shown) for cooling therein, and the coldhead 2B, the first cold conducting portion 2C, and the second cold conducting portion 2D are engaged to cool the refrigerant flowing through the first thermosiphon 3 and the second thermosiphon 4. The first cold conducting part 2C and the second cold conducting part 2D may be made of aluminum. The second cold conduction part 2D has a larger thickness than the first cold conduction part 2C, and the first cold conduction part 2C is flat. The first thermosiphon 3 is fixed to the first cooling duct 2C, and the second thermosiphon 4 is fixed to the second cooling duct 2D.
The first and second thermosiphons 3 and 4 have different cooling capacities by flowing refrigerants having different boiling points through the inside thereof and having different tube diameters, and specifically, the boiling point of the first refrigerant in the first thermosiphon 3 is smaller than the boiling point of the second refrigerant in the second thermosiphon 4, and the tube diameter of the first thermosiphon 3 is smaller than the tube diameter of the second thermosiphon 4. The boiling point of the first refrigerant may be between-80 ℃ and-160 ℃, such as-130 ℃. The second refrigerant may have a boiling point in the range of-50 ℃ to-100 ℃, such as-100 ℃. In actual use, the first refrigerant is, for example, R14 refrigerant, and the second refrigerant is, for example, R23 refrigerant. Because the density of cold gas in the cold insulation container 1 is large, the temperature difference of up-heating and down-cooling exists in the cold insulation container 1 in the up-down direction, the refrigerants in the first thermosiphon and the second thermosiphon adopt refrigerants with different boiling points, so that heat is transferred to different positions of the cold insulation container in the up-down direction with different powers, natural convection is compensated, the working temperature intervals suitable for different refrigerants are different, and in order to realize the rapid and continuous cooling of the cold insulation container 1 from room temperature to normal cold and then to deep cooling, different refrigerants are used in the two thermosiphons, and the performance of the refrigerants is exerted to the maximum degree.
The first thermosiphon 3 comprises a first connecting section 3A, a first refrigerating section 3B, a second refrigerating section 3C, a third refrigerating section 3D, a fourth refrigerating section 3E, a fifth refrigerating section 3F, a second connecting section 3G and an injection section 3H which are communicated, the first connecting section 3A and the second connecting section 3G are fixedly connected with a first cold conducting part 2C of the Stirling refrigerator, the first connecting section 3A, the first refrigerating section 3B, the second refrigerating section 3C, the third refrigerating section 3D, the fourth refrigerating section 3E and the fifth refrigerating section 3F are sequentially connected in series between the first connecting section 3A and the second connecting section 3G, a first refrigerant flows in the first thermosiphon 3 to take out heat of the upper side part of the cold insulation container 1, and the part of the first thermosiphon 3 surrounding the periphery of the cold insulation container 1 is in horizontal configuration. The first refrigerant is added through the injection section 3H into the first thermosiphon 3. The material of the first thermosiphon 3 may be copper. The outer diameter of the sections of the first thermosiphon 3 may be 7.94mm and the wall thickness may be 0.6 mm. The interface of the first thermosiphon 3 with the adjacent pipes can be sealed by brazing, and the first refrigerant charging port of the first thermosiphon 3 can be sealed by ultrasonic welding. Referring to fig. 6, the inner wall of the first thermosiphon 3 may have ribs P protruded to increase a refrigerant contact area, and the ribs P help to promote refrigerant boiling heat exchange. The height of the convex ribs P can be 0.2mm, the convex ribs P can be arranged at intervals of 7.2 degrees, and 50 convex ribs P are arranged in a circle.
The second thermosiphon 4 extends downwards from the cold head 2B to the lower part of the cold insulation container 1 and surrounds the periphery of the cold insulation container 1, and comprises a first connecting section 4A, a first refrigerating section 4B, a second refrigerating section 4C, a third refrigerating section 4D, a fourth refrigerating section 4E, a fifth refrigerating section 4F, a second connecting section 4G, an injection section 4H and a reducing elbow 4I which are communicated with each other, the first connecting section 4A and the second connecting section 4G are fixedly connected with a second cold conducting part 2D of the Stirling refrigerator, the first connecting section 4A, the first refrigerating section 4B, the second refrigerating section 4C, the third refrigerating section 4D, the fourth refrigerating section 4E and the fifth refrigerating section 4F are sequentially connected in series between the first connecting section 4A and the second connecting section 4G, and the second refrigerant flows in the second thermosiphon 4 to bring out heat of the middle side and lower side parts of the cold insulation container 1. Second refrigeration section 4C, third refrigeration section 4D and fifth refrigeration section 4F are horizontal arrangement, first refrigeration section 4B extends from top to bottom aslant, fourth refrigeration section 4E extends from bottom to top aslant, combine figure 13, first refrigeration section 4B and fifth refrigeration section 4F all set up in the rear side of cold-proof container 1 in order to can evenly refrigerate liquid when the liquid K of arranging in cold-proof container 1 topples backward, fourth refrigeration section 4E sets up in the periphery of a lateral wall that borders on cold-proof container 1 rear side wall in order to can evenly refrigerate liquid when the liquid K of arranging in cold-proof container 1 topples backward. Referring to fig. 8, the second cooling duct 2D has a reserve chamber M for storing the second refrigerant, the first connecting section 4A and the second connecting section 4G communicate with the reserve chamber M, the capacity of the reserve chamber M is, for example, 3.6mL, and the reserve chamber M stores an excessive amount of the second refrigerant, thereby avoiding the occurrence of insufficient second refrigerant when the second thermosiphon 4 is tilted and the heat transfer of the second thermosiphon 4 is enhanced. The second refrigerant is added through the injection section 4H into the second thermosiphon 4. The first refrigeration section 4B and the second refrigeration section 4C are communicated by the reducing elbow 4I, the inner diameter of the reducing elbow 4I is larger than that of the first refrigeration section 4B and the second refrigeration section 4C, the reducing elbow 4I is located at the joint position of the adjacent side walls of the cold insulation container 1, two joint ends of the reducing elbow 4I extend to the adjacent side walls respectively, and the reducing elbow 4I is used for reducing the local resistance borne by the second refrigerant during circulation. The material of the second thermosiphon 4 may be copper. The outer diameter of the pipe of the second thermosiphon 4 except the reduced bend 4I may be 9.52mm, the wall thickness may be 0.7mm, the outer diameter of the reduced bend 4I may be 12mm, and the inner diameter may be 10 mm. Referring to fig. 6, the inner wall of the second thermosiphon 4 may have ribs P protruded to increase a refrigerant contact area, and the ribs P help to promote refrigerant boiling heat exchange. The height of the convex ribs P can be 0.2mm, the convex ribs P can be arranged at intervals of 7.2 degrees, and 50 convex ribs P are arranged in a circle.
With further reference to fig. 9 to 11, each portion of the first thermosiphon 3 and the second thermosiphon 4 may have a specific angle design so as to obtain a better cooling effect. Specifically, referring to fig. 9, in a top view, the longitudinal surfaces of the first connecting section 4A and the second connecting section 4G are disposed at 90 degrees to the side wall surface of the cooling container 1. Referring to fig. 9, in a top view, the longitudinal planes of the first connecting section 3A and the second connecting section 3G respectively have an angle of 20 ° with the longitudinal plane perpendicular to the sidewall plane of the cold insulation container 1, and the longitudinal sections of the first connecting section 3A and the second connecting section 3G respectively have an angle of 40 °. Referring to fig. 10, the included angle α of the first refrigeration section 4B with respect to the horizontal plane is greater than the included angle β of the fourth refrigeration section 4E with respect to the horizontal plane, and the included angle β may be 30 ° and the included angle α may be 50 °. Referring to fig. 11, the first connecting section 4A may be at an angle of 30 ° to the horizontal. With reference to fig. 11, the first connecting section 3A has a first portion N1 (communicating with the first refrigeration section 3B) angled at 5 ° to the horizontal, and a second portion N2 (communicating with the first refrigeration section 3B, the first cold conducting section 2C) angled at 30 ° to the horizontal. With reference to fig. 12, by adopting the aforesaid angle design concept, when the user drags the stirling cold insulation device to raise the stirling cold insulation device by a certain angle (generally smaller than 20 °, for example, 15 °), the inclinations of the first connecting section 3A and the second connecting section 3G of the first thermosiphon 3 and the first connecting section 4A and the second connecting section 4G of the second thermosiphon 4 become smaller, and compared with the stirling cold insulation device in an un-raised state, the heat transfer performance of the first thermosiphon 3 at this time will be weakened, and the heat transfer performance of the second thermosiphon 4 will be enhanced, so that the stirling cold insulation device can still maintain a certain refrigeration effect even during dragging. The starting time and the heat transfer effect of the first thermosiphon 3 and the second thermosiphon 4 are directly related to the inclination angles of the first connecting section 3A, the second connecting section 3G, the first connecting section 4A and the second connecting section 4G extending from the outer wall of the cold-proof container 1 to the stirling cooler 2, and in the viewing angles of fig. 11 and 12, the inclination directions of the first connecting section 3A, the second connecting section 3G, the first connecting section 4A and the second connecting section 4G are gradually inclined upwards from left to right, and the stirling cold-proof device is gradually inclined downwards from left to right when lifted, that is, the inclination directions of the first connecting section 3A, the second connecting section 3G, the first connecting section 4A and the second connecting section 4G are opposite to the inclination direction of the stirling cold-proof device when lifted, and when the inclination angles of the first connecting section 3A and the second connecting section 3G of the first thermosiphon 3 are set to be smaller than the liftable angle of the stirling cold-proof device, and when the inclination angles of the first connecting section 3A and the second connecting section 3G of the second thermosiphon 4 are larger than the liftable angle of the Stirling cold insulation equipment, the second thermosiphon 4 still can play a heat transfer role when the Stirling cold insulation equipment is lifted in the preset liftable angle range by the angle design mode. The liftable angle refers to an angle at which the stirling cooler is dragged to be lifted in normal use, and may be in a range of 15 ° to 20 °.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A Stirling cold insulation device comprises a cold insulation container (1) and a Stirling refrigerator (2), wherein a cold head (2B) of the Stirling refrigerator is arranged at a distance from the cold insulation container; characterized in that the cold insulation equipment further comprises a heat transfer component, wherein the heat transfer component comprises a first thermosiphon (3) and a second thermosiphon (4); the first thermosiphon (3) and the second thermosiphon (4) are fixedly connected to the cold head (2B) and are arranged around the periphery of the cold storage container (1); the first thermosiphon is disposed at a position higher than the second thermosiphon, and a cooling capacity Q1 of the first thermosiphon is smaller than a cooling capacity Q2 of the second thermosiphon to uniformly cool an object placed in the cold-holding container.
2. A stirling cold insulation device according to claim 1, wherein the boiling point of the refrigerant in the first thermosiphon (3) is lower than the boiling point of the refrigerant in the second thermosiphon (4).
3. A stirling cold insulation device according to claim 1, wherein the tube diameter of the first thermosiphon (3) is smaller than the tube diameter of the second thermosiphon (4).
4. A stirling cold insulation device according to claim 1, 2 or 3, wherein the first thermosiphon (3) is arranged horizontally around the part of the periphery of the cold insulation container (1).
5. A stirling cold insulation device according to claim 1 or 2 or 3, wherein the second thermosiphon (4) extends from the coldhead (2B) down to the lower part of the cold insulation container and around the periphery of the cold insulation container.
6. A Stirling cold insulation device according to claim 5, wherein the second thermosiphon (4) comprises a first connection section (4A), a first refrigeration section (4B), a second refrigeration section (4C), a third refrigeration section (4D), a fourth refrigeration section (4E), a fifth refrigeration section (4F) and a second connection section (4G), the first connection section and the second connection section are fixedly connected with the cold head (2B), the first refrigeration section, the second refrigeration section, the third refrigeration section, the fourth refrigeration section and the fifth refrigeration section are sequentially connected in series between the first connection section and the second connection section, and the included angle α of the first refrigeration section (4B) relative to the horizontal plane is larger than the included angle β of the fourth refrigeration section (4E) relative to the horizontal plane.
7. A Stirling cold insulation device according to claim 6, wherein the first refrigeration section (4B) extends obliquely from top to bottom and the fourth refrigeration section (4E) extends obliquely from bottom to top.
8. A Stirling cold insulation device according to claim 7, wherein the fourth cooling section (4E) is provided at an outer periphery of one side wall adjacent to a rear side wall of the cold insulation container (1) to uniformly cool the liquid placed in the cold insulation container when the liquid is turned over backward.
9. A Stirling cold insulation device according to claim 6, 7 or 8, wherein the included angle α is 50 ° and the included angle β is 30 °.
10. A Stirling cold insulation device according to claim 6, 7 or 8, wherein the second refrigeration section (4C), the third refrigeration section (4D) and the fifth refrigeration section (4F) are all horizontally arranged.
11. A Stirling cold insulation device according to claim 6 or 7 or 8, wherein the first refrigeration section (4B) and the fifth refrigeration section (4F) are both arranged at the rear side of the cold insulation container to enable uniform refrigeration of the liquid placed in the cold insulation container when the liquid is poured backwards.
12. A stirling cold insulation device according to claim 1, wherein a cold end adapter is fastened to the cold head (2B), the cold end adapter comprising a first cold conducting portion (2C) and a second cold conducting portion (2D), the second cold conducting portion (2D) being arranged above the first cold conducting portion (2C).
Preferably, the first thermosiphon is fixedly connected to the first cold conducting part (2C), and the second thermosiphon is fixedly connected to the second cold conducting part (2D).
Preferably, the second cold-conducting portion (2D) has a greater thickness than the first cold-conducting portion (2C), the first cold-conducting portion (2C) being of a flat shape.
Preferably, the inner wall of the first and/or second thermosiphon has a rib (P) protruded to increase a refrigerant contact area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546215.3A CN113357863A (en) | 2021-05-19 | 2021-05-19 | Stirling cold insulation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546215.3A CN113357863A (en) | 2021-05-19 | 2021-05-19 | Stirling cold insulation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113357863A true CN113357863A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110546215.3A Pending CN113357863A (en) | 2021-05-19 | 2021-05-19 | Stirling cold insulation equipment |
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| CN (1) | CN113357863A (en) |
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| GB636262A (en) * | 1941-04-07 | 1950-04-26 | Locomotive Firebox Co | Improvements in locomotive boilers |
| DE2732879A1 (en) * | 1976-07-22 | 1978-01-26 | Foster Wheeler Energy Corp | HEAT EXCHANGER |
| CN104329871A (en) * | 2014-08-29 | 2015-02-04 | 青岛海尔股份有限公司 | Semi-conductor refrigeration refrigerator and cold end heat exchanging device thereof |
| CN211625821U (en) * | 2020-02-27 | 2020-10-02 | 宁波华斯特林电机制造有限公司 | Stirling cold insulation equipment convenient to uncap |
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2021
- 2021-05-19 CN CN202110546215.3A patent/CN113357863A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB636262A (en) * | 1941-04-07 | 1950-04-26 | Locomotive Firebox Co | Improvements in locomotive boilers |
| DE2732879A1 (en) * | 1976-07-22 | 1978-01-26 | Foster Wheeler Energy Corp | HEAT EXCHANGER |
| CN104329871A (en) * | 2014-08-29 | 2015-02-04 | 青岛海尔股份有限公司 | Semi-conductor refrigeration refrigerator and cold end heat exchanging device thereof |
| CN211625821U (en) * | 2020-02-27 | 2020-10-02 | 宁波华斯特林电机制造有限公司 | Stirling cold insulation equipment convenient to uncap |
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