CN109578753B - Efficient heat-insulating storage device and structure for space station - Google Patents
Efficient heat-insulating storage device and structure for space station Download PDFInfo
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- CN109578753B CN109578753B CN201811643151.3A CN201811643151A CN109578753B CN 109578753 B CN109578753 B CN 109578753B CN 201811643151 A CN201811643151 A CN 201811643151A CN 109578753 B CN109578753 B CN 109578753B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/07—Arrangements using an air layer or vacuum the air layer being enclosed by one or more layers of insulation
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Abstract
The invention discloses a high-efficiency heat-insulating storage device and a structure for a space station, wherein the high-efficiency heat-insulating storage device for the space station is provided with at least one storage cavity, and a first side wall of the storage cavity comprises an inner wall layer, a supporting piece, a heat-insulating core layer and an outer wall layer which are sequentially arranged from the storage cavity to an outer environment; the inner wall layer and the outer wall layer form a closed space, and the closed space is filled with gas with low heat conductivity coefficient; the support piece is of a horn-shaped structure and comprises a large-diameter end connected with the inner wall layer and a small-diameter end propped against the outer wall layer after penetrating through the heat insulation core layer. The invention has the excellent effects of small structural heat conduction, small gas heat conduction, small side wall size, large utilization space of the storage cavity and high heat insulation efficiency, and meets the low-temperature storage requirement of the space station.
Description
Technical Field
The invention relates to the technical field of space low-temperature storage, in particular to a high-efficiency heat-insulating storage device and a structure for a space station.
Background
Heat transfer through the insulating structure of the cryogenic storage device is the result of the combined action of several heat transfer modes, often involving solid conduction, gas convection and heat radiation. At present, expansion foam heat insulation, high vacuum heat insulation, powder heat insulation and high vacuum multilayer heat insulation modes are generally adopted to eliminate the heat transfer mode of one or more heat insulation structures of the low-temperature storage device. However, these adiabatic approaches are not well applicable to cryogenic storage in aerospace stations. Mainly in the following aspects.
Firstly, space limitation is carried out, and the thickness of the heat insulation structure of the low-temperature storage device is strictly limited under the requirement that the storage volume of the low-temperature storage device is increased as much as possible because the envelope size of the storage device is fixed. Therefore, the expansion foam heat insulation and the powder heat insulation mainly reducing solid heat conduction are limited in use due to poor heat insulation performance and large heat insulation layer thickness;
secondly, the emission weight is limited, so that the high vacuum heat insulation mainly comprising gas convection and gas heat conduction is reduced, and the wall thickness of the device is increased under the condition that the material of the inner wall and the outer wall of the low-temperature device is selected to ensure the strength requirement of the low-temperature storage device because the vacuum condition is required to be met, so that the use limitation is caused by the large weight;
third, the strength limit, high vacuum multilayer insulation is called "super insulation" because of reduced radiation, convection and thermal conduction at the same time, and the application is wider. However, due to the vacuum requirement, the weight of the low-temperature device is increased, so that the use of the low-temperature device is limited; in addition, the multi-layer material is a soft material like paper, and does not have strength requirements.
However, the existing heat insulation structure cannot meet the heat insulation requirement of the low-temperature storage device used in the space station and a special heat transfer mode under the weightless condition (natural convection heat transfer does not exist in the weightless condition, and heat can be transferred only through radiation and heat conduction), so that a person skilled in the art needs to provide a heat insulation structure capable of adapting to the special heat transfer mode.
Disclosure of Invention
The invention aims to provide a high-efficiency heat-insulating storage device and a structure for a space station, which have the excellent effects of small structural heat conduction, small gas heat conduction, small side wall size, large utilization space of a storage cavity and high heat insulation efficiency, and meet the low-temperature storage requirement of the space station.
The technical scheme provided by the invention is as follows:
an efficient insulated storage unit for space stations is provided with at least one storage chamber, wherein,
the first side wall of the storage cavity comprises an inner wall layer, a supporting piece, a heat insulation core layer and an outer wall layer which are sequentially arranged from the storage cavity towards the outer environment;
the inner wall layer and the outer wall layer form a closed space, and the closed space is filled with gas with low heat conductivity coefficient;
the supporting piece is of a horn-shaped structure and comprises a large-diameter end connected with the inner wall layer and a small-diameter end propped against the outer wall layer after penetrating through the heat insulation core layer.
In the technical scheme, in the weightless state, the gas does not have convection heat transfer, and heat transfer is mainly carried out in a gas heat conduction mode. More preferably, the invention realizes the support between the inner wall layer and the outer wall layer through the horn-shaped supporting piece, thereby greatly reducing the weight of the invention, simultaneously meeting the structural strength of the invention, further reducing the thickness requirement of the first side wall of the invention, improving the size of the storage cavity and increasing the utilization space of the storage cavity; meanwhile, as the difference between the inner heat transfer area and the outer heat transfer area of the horn-shaped supporting piece is larger, the heat resistance of the supporting piece is increased, the structural heat transfer is small (the solid heat conduction is small), and the heat insulation efficiency of the invention is further improved.
Further preferably, a spring is provided between the small diameter end and the outer wall layer.
In the technical scheme, the arrangement of the springs further reduces the structural heat transfer, so that the heat transfer of the small-diameter end is changed from surface heat transfer to point heat transfer, and the arrangement of the springs increases the heat conduction path, further increases the heat resistance of the structural heat transfer, and improves the heat insulation efficiency of the invention. The spring is hard and short, and even under the condition of weightlessness, the extension length of the spring is very tiny, so that the resonance phenomenon of the storage cavity of the invention is avoided, and the service life of the invention is prolonged.
Further preferably, a mounting seat is arranged between the small-diameter end and the spring, the mounting seat is provided with a first mounting groove for accommodating the small-diameter end, and the mounting seat is provided with a second mounting groove for accommodating the spring.
In the technical scheme, the positioning and limiting of the supporting piece and the spring are realized by the arrangement of the mounting seat, the mounting efficiency is improved, and the supporting piece is limited, so that the movement along the inner side wall layer is effectively avoided, the structural integrity and the structural strength of the spring are ensured, and the coaxiality of the spring in the telescopic process is ensured.
Further preferably, the heat insulating core layer comprises a plurality of vacuum heat insulating layers stacked in sequence from the storage cavity towards the outside environment, and a plurality of vacuum protection layers arranged in sequence from the storage cavity towards the outside environment at intervals; the two adjacent vacuum protection layers form an accommodating space, so that the accommodating space accommodates a plurality of vacuum heat insulation layers.
In the technical scheme, the heat insulation core layer not only effectively reduces gas convection, heat conduction and heat radiation, but also avoids vacuumizing a cavity between the inner wall layer and the outer wall layer, thereby further reducing the quality of the heat insulation core layer.
Further preferably, the vacuum insulation layer comprises a plurality of vacuum insulation panels stacked in sequence; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer; the outer surfaces of the plurality of vacuum insulation panels are wound with glass fiber layers; the outer surface of the glass fiber layer is provided with a metal net.
In the technical scheme, the vacuum heat insulation plate obtains high-efficiency heat insulation performance after being evacuated and sealed, so that the vacuum heat insulation layer is light and thin; therefore, the invention does not need to vacuumize the closed space like the prior art, thereby reducing the wall thickness of the inner wall layer and the outer wall layer, reducing the weight and being particularly suitable for space stations.
Further preferably, the two supporting pieces arranged opposite to the first side wall are symmetrically arranged.
In the technical scheme, in practical application, one pair or two pairs of supporting pieces can be symmetrically arranged except for the position where the door opening is arranged in the storage cavity, and the symmetrically arranged supporting pieces can further optimize the structural strength of the storage cavity and prolong the service life of the storage cavity.
The present invention also provides a high efficiency insulation structure for a space station, comprising:
an inner wall layer, a supporting piece, a heat insulation core layer and an outer wall layer which are sequentially arranged from inside to outside;
the inner wall layer and the outer wall layer form a closed space, and the closed space is filled with gas with low heat conductivity coefficient;
the supporting piece is of a horn-shaped structure and comprises a large-diameter end connected with the inner wall layer and a small-diameter end propped against the outer wall layer after penetrating through the heat insulation core layer.
In the technical scheme, in the weightless state, the gas does not have convection heat transfer, and heat transfer is mainly carried out in a gas heat conduction mode. More preferably, the invention realizes the support between the inner wall layer and the outer wall layer through the horn-shaped supporting piece, thereby greatly reducing the weight of the invention, simultaneously meeting the structural strength of the invention, further reducing the thickness requirement of the first side wall of the invention, improving the size of the storage cavity and increasing the utilization space of the storage cavity; meanwhile, as the difference between the inner heat transfer area and the outer heat transfer area of the horn-shaped supporting piece is larger, the heat resistance of the supporting piece is increased, the structural heat transfer is small (the solid heat conduction is small), and the heat insulation efficiency of the invention is further improved.
Further preferably, a spring is arranged between the small diameter end and the outer wall layer; the spring mounting device is characterized in that a mounting seat is arranged between the small-diameter end and the spring, the mounting seat is provided with a first mounting groove for accommodating the small-diameter end, and the mounting seat is provided with a second mounting groove for accommodating the spring.
In the technical scheme, the arrangement of the springs further reduces the structural heat transfer, so that the heat transfer of the small-diameter end is changed from surface heat transfer to point heat transfer, and the arrangement of the springs increases the heat conduction path, further increases the heat resistance of the structural heat transfer, and improves the heat insulation efficiency of the invention. The spring is hard and short, and even under the condition of weightlessness, the extension length of the spring is very tiny, so that the resonance phenomenon of the storage cavity of the invention is avoided, and the service life of the invention is prolonged. More preferably, the setting of mount pad has realized the location and the spacing of support piece and spring, has improved installation effectiveness, and through spacing to the support piece, effectively avoid along the inside wall layer removal, guaranteed the structural integrity and the structural strength of the invention, guaranteed the axiality in the spring flexible process simultaneously.
Further preferably, the heat insulation core layer comprises a plurality of vacuum heat insulation layers which are sequentially stacked from inside to outside, and a plurality of vacuum protection layers which are sequentially arranged at intervals from inside to outside; the two adjacent vacuum protection layers form an accommodating space, so that the accommodating space accommodates a plurality of vacuum heat insulation layers.
In the technical scheme, the heat insulation core layer not only effectively reduces gas convection, heat conduction and heat radiation, but also avoids vacuumizing a cavity between the inner wall layer and the outer wall layer, thereby further reducing the quality of the heat insulation core layer.
Further preferably, the vacuum insulation layer comprises a plurality of vacuum insulation panels stacked in sequence; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer; the outer surfaces of the plurality of vacuum insulation panels are wound with glass fiber layers; the outer surface of the glass fiber layer is provided with a metal net.
In the technical scheme, the vacuum heat insulation plate obtains high-efficiency heat insulation performance after being evacuated and sealed, so that the vacuum heat insulation layer is light and thin; therefore, the invention does not need to vacuumize the closed space like the prior art, thereby reducing the wall thickness of the inner wall layer and the outer wall layer, reducing the weight and being particularly suitable for space stations.
The efficient heat-insulating storage device and the structure for the space station provided by the invention can bring at least one of the following beneficial effects:
1. in the invention, in the weightless state, the gas does not have convection heat transfer, and heat transfer is mainly carried out in a gas heat conduction mode. More preferably, the invention realizes the support between the inner wall layer and the outer wall layer through the horn-shaped supporting piece, thereby greatly reducing the weight of the invention, simultaneously meeting the structural strength of the invention, further reducing the thickness requirement of the first side wall of the invention, improving the size of the storage cavity and increasing the utilization space of the storage cavity; meanwhile, as the difference between the inner heat transfer area and the outer heat transfer area of the horn-shaped supporting piece is larger, the heat resistance of the supporting piece is increased, the structural heat transfer is small (the solid heat conduction is small), and the heat insulation efficiency of the invention is further improved.
2. In the invention, the arrangement of the springs further reduces the structural heat transfer, so that the heat transfer of the small-diameter end is changed from surface heat transfer to point heat transfer, and the arrangement of the springs increases the heat conduction path, further increases the heat resistance of the structural heat transfer, and improves the heat insulation efficiency of the invention. The spring is hard and short, and even under the condition of weightlessness, the extension length of the spring is very tiny, so that the resonance phenomenon of the storage cavity of the invention is avoided, and the service life of the invention is prolonged. More preferably, the setting of mount pad has realized the location and the spacing of support piece and spring, has improved installation effectiveness, and through spacing to the support piece, effectively avoid along the inside wall layer removal, guaranteed the structural integrity and the structural strength of the invention, guaranteed the axiality in the spring flexible process simultaneously.
3. In the invention, the vacuum heat insulation plate obtains high-efficiency heat insulation performance after being evacuated and sealed, so that the vacuum heat insulation layer is light and thin; therefore, the invention does not need to vacuumize the closed space like the prior art, thereby reducing the wall thickness of the inner wall layer and the outer wall layer, reducing the weight and being particularly suitable for space stations.
Drawings
The above features, technical features, advantages and implementation of the efficient insulated storage apparatus and structure for space station will be further described in the following in a clear and understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of one embodiment of a high efficiency insulated storage apparatus for a space station of the present invention;
FIG. 2 is a schematic cross-sectional view of one embodiment of a high efficiency insulation structure for a space station of the present invention.
Reference numerals illustrate:
1. the vacuum heat-insulating material comprises an outer wall layer, a vacuum heat-insulating layer, a vacuum protection layer, a support piece, a large-diameter end, a small-diameter end, an inner wall layer, a mounting seat, a spring and a storage cavity.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For simplicity of the drawing, only the parts relevant to the present invention are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case. In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In a first embodiment, as shown in fig. 1, a high-efficiency heat-insulating storage device for a space station is provided with at least one storage cavity 8, wherein a first side wall of the storage cavity 8 comprises an inner wall layer 5, a supporting member 4, a heat-insulating core layer and an outer wall layer 1 which are sequentially arranged from the storage cavity 8 towards the external environment; the inner wall layer 5 and the outer wall layer 1 form a closed space, and the closed space is filled with gas with low heat conductivity coefficient; the supporting member 4 has a horn-shaped structure and comprises a large-diameter end 41 connected with the inner wall layer 5 and a small-diameter end 42 propped against the outer wall layer 1 after penetrating through the heat insulation core layer. It is noted that a low thermal conductivity gas is one that has a thermal coefficient less thanGases of air, e.g. Ar or CO 2 Etc. In the weightless state, the gas does not have convection heat transfer, and heat transfer is mainly carried out in a gas heat conduction mode. More preferably, the invention realizes the support between the inner wall layer 5 and the outer wall layer 1 through the horn-shaped support piece 4, thereby greatly reducing the weight of the invention, simultaneously meeting the structural strength of the invention, further reducing the thickness requirement of the first side wall of the invention, improving the size of the storage cavity 8 and increasing the utilization space of the storage cavity 8; meanwhile, as the difference between the inner heat transfer area and the outer heat transfer area of the horn-shaped supporting piece 4 is larger, the heat resistance of the supporting piece 4 is increased, the structural heat transfer is small (the solid heat conduction is small), and the heat insulation efficiency of the invention is further improved. In practice, the storage chamber 8 may be used for storing articles that need to be stored at low temperatures.
In the second embodiment, as shown in fig. 1, a spring 7 is provided between the small diameter end 42 and the outer wall layer 1 in the first embodiment. Preferably, a mounting seat 6 is arranged between the small diameter end 42 and the spring 7, the mounting seat 6 is provided with a first mounting groove for accommodating the small diameter end 42, and the mounting seat 6 is provided with a second mounting groove for accommodating the spring 7. In practical applications, the mounting seat 6 may have a tubular structure, i.e. the first mounting groove and the second mounting groove are both internal channels of the mounting seat 6. Of course, the mounting seat 6 may have a tubular structure at both ends, but the first mounting groove and the second mounting groove are not communicated, and an abutting portion is provided between the first mounting groove and the second mounting groove. Preferably, the support 4 is a glass fibre reinforced plastic support. Preferably, the end face of the large diameter end 41 is provided with an adhesive layer with the outer side wall of the inner wall layer 5 (i.e., the surface on the side away from the storage chamber 8). Preferably, the mounting base 6 is welded to the inner side wall of the outer wall layer 1 (i.e., the surface on the side closer to the storage chamber 8). Preferably, the two supports 4, which are oppositely disposed to the first side wall, are symmetrically disposed. It should be noted that, since the storage cavity 8 is used for placing the articles, in order to facilitate the taking and placing of the articles, the side wall of the storage cavity 8 must be provided with a door opening for taking and placing the articles, so that the side wall of the storage cavity 8 has one or two pairs of two opposite sub-side walls, and the supporting members 4 of the two opposite sub-side walls are symmetrically arranged, and the symmetrically arranged supporting members 4 can further optimize the structural strength of the invention and prolong the service life of the invention. Preferably, the outer side wall (i.e. the surface on the side away from the storage cavity 8) of the inner wall layer 5 is provided with a positioning member corresponding to each support member 4, and the position of the support member 4 corresponding to the positioning member is provided with a positioning hole. Preferably, the positioning member is disposed opposite the mounting seat 6. And the number of the positioning pieces can be one or more, and when the number of the positioning pieces is three or more, at least one positioning piece is the outer side of the connecting line of two of the positioning pieces.
In the third embodiment, as shown in fig. 1, on the basis of the first or second embodiment, the heat insulating core layer includes a plurality of vacuum heat insulating layers 2 stacked in order from the storage chamber 8 toward the external environment, and a plurality of vacuum protection layers 3 stacked in order from the storage chamber 8 toward the external environment at intervals; two vacuum protection layers 3 adjacently disposed form an accommodation space such that the accommodation space accommodates a plurality of vacuum insulation layers 2. Preferably, the vacuum insulation layer 2 includes a plurality of vacuum insulation panels stacked in sequence; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer; glass fiber layers are wound on the outer surfaces of the vacuum insulation panels; the outer surface of the glass fiber layer is provided with a metal net. The vacuum heat insulation plate obtains high-efficiency heat insulation performance after being evacuated and sealed, so that the vacuum heat insulation layer 2 is light and thin; therefore, the invention does not need to vacuumize the closed space like the prior art, thereby reducing the wall thickness of the inner wall layer 5 and the outer wall layer 1, reducing the weight, and being particularly suitable for space stations. And the vacuum insulation panel does not need to support the inner wall layer 5 and the outer wall layer 1 in the invention, and the vacuum insulation panel is supported and installed by a metal net.
Illustratively, as shown in fig. 1, the storage chamber 8 has a cubic structure, and the side wall of the storage chamber 8 includes the first side wall and a front side wall provided with a door opening; at this time, the first side wall comprises a rear side wall, a left side wall, a right side wall, an upper side wall and a lower side wall, wherein the left side wall and the right side wall are symmetrically arranged; the upper side wall and the lower side wall are symmetrically arranged; the support 4 (spring 7, mounting seat 6) on the left side wall and the support 4 (spring 7, mounting seat 6) on the right side wall are bilaterally symmetrical; the upper side wall support 4 (spring 7, mount 6) and the lower side wall support 4 (spring 7, mount 6) are vertically symmetrical. In practical applications, the method for manufacturing the storage cavity 8 is not limited to the following:
(1) Welding limiting pieces on the upper wall, the lower wall, the left wall, the right wall and the rear wall of the inner wall layer 5, wherein the length of each limiting piece is not limited to 5mm, and 4 limiting pieces are arranged on each inner wall layer (the upper wall, the lower wall, the left wall, the right wall and the rear wall) so as to limit the glass fiber reinforced plastic supporting pieces to move along the inner wall layer 5;
(2) Welding an upper wall, a lower wall, a left wall, a right wall and a rear wall of the inner wall layer, which are adjacently arranged on the inner wall layer 5, to form a cube storage cavity 8;
(3) The two end surfaces of the glass fiber reinforced plastic support piece are uniformly coated with low-temperature-resistant glue, the end surface of the large-diameter end 41 is connected with the inner wall layer walls (the inner wall layer upper wall, the inner wall layer lower wall, the inner wall layer left wall, the inner wall layer right wall and the inner wall layer rear wall), and the end surface of the small-diameter end 42 is connected with the spring 7; the large diameter end 41 of the adjacent glass fiber reinforced plastic support piece is preferably coated with the inner wall layer wall corresponding to the large diameter end 41;
(4) The vacuum heat insulation layer 2 (composed of a plurality of vacuum heat insulation plates and a plurality of vacuum protection surface layers) is paved on the outer side walls of the 5 glass fiber reinforced plastic supporting pieces (namely, the surface of one side, far away from the storage cavity 8, of the glass fiber reinforced plastic supporting pieces), then the outer surface of the vacuum heat insulation layer 2 is connected and fixed by adopting an aluminum foil tape to form a bonding layer, then the bonding layer is wound and fixed by using a glass fiber tape to form a glass fiber layer, and finally, a metal net is formed by using a 200-mesh metal wire net to fix; integrating the vacuum heat insulation layer 2, the glass fiber reinforced plastic support piece and the inner wall layer 5;
(5) The mounting seat 6 is welded on the inner wall (the upper inner wall of the outer wall layer, the lower inner wall of the outer wall layer, the left inner wall of the outer wall layer, the right inner wall of the outer wall layer and the rear inner wall of the outer wall layer) of the outer wall layer 1, the mounting seat 6 is of a tubular structure, the length is 10mm, 1 inner wall (the upper inner wall of the outer wall layer, the lower inner wall of the outer wall layer, the left inner wall of the outer wall layer, the right inner wall of the outer wall layer or the rear inner wall of the outer wall layer) is arranged, and the position requirement is that the extension line of the central axis of the mounting seat 6 is preferably coincident with the central line of the glass fiber reinforced plastic support;
(6) The spring 7 and the small diameter end 42 are inserted into the mounting seat 6, and an outer wall connecting seam and an inner and outer wall connecting seam are welded;
(7) Ar or CO with small heat conductivity coefficient is adopted at the reserved opening of the gas replacement of the inner wall and the outer wall 2 And (3) purging the closed space between the inner wall layer 5 and the outer wall layer 1 for 30min, and stopping purging, and welding and plugging the inner and outer wall gas replacement reserved openings.
In the fourth embodiment, as shown in fig. 1, the storage device further comprises at least one storage drawer, wherein the storage drawer is arranged at the side of the storage cavity 8, and the side wall of the storage drawer away from the side of the storage cavity 8 is a metal side wall, a wood side wall, a plastic side wall or an alloy side wall. The side wall of the storage cavity 8 provided with the door opening is a metal side wall, a wood side wall, a plastic side wall or an alloy side wall, of course, the structure of the side wall of the storage cavity 8 provided with the door opening is the same as or different from that of the first side wall, and the structure of the door used for covering the door opening can be the same as or different from that of the first side wall. Preferably, the contact of the door with the door opening is preferably provided with a sealing ring. Preferably, a plurality (two or more) of storage chambers 8 may be adjacently disposed or spaced apart, different storage chambers 8 may be the same or different in size, and the storage chambers 8 may have a spherical shape, a rectangular parallelepiped shape, or an irregular space.
In a fifth embodiment, as shown in fig. 2, a high-efficiency heat insulating structure for a space station includes: an inner wall layer 5, a supporting piece 4, a heat insulation core layer and an outer wall layer 1 which are sequentially arranged from inside to outside; the inner wall layer 5 and the outer wall layer 1 form a closed space, and the closed space is filled with gas with low heat conductivity coefficient; the supporting member 4 has a horn-shaped structure and comprises a large-diameter end 41 connected with the inner wall layer 5 and a small-diameter end 42 propped against the outer wall layer 1 after penetrating through the heat insulation core layer. It is noted that a low thermal conductivity gas refers to a gas having a thermal coefficient less than that of air, such as Ar or CO 2 Etc. Preferably, a spring 7 is provided between the small diameter end 42 and the outer wall layer 1. Preferably, a mounting seat 6 is arranged between the small diameter end 42 and the spring 7, the mounting seat 6 is provided with a first mounting groove for accommodating the small diameter end 42, and the mounting seat 6 is provided with a second mounting groove for accommodating the spring 7. In practice, the mounting seat 6 may be of tubular construction, i.e. the first mountingThe groove is communicated with the second mounting groove and is an inner channel of the mounting seat 6. Of course, the mounting seat 6 may have a tubular structure at both ends, but the first mounting groove and the second mounting groove are not communicated, and an abutting portion is provided between the first mounting groove and the second mounting groove. Preferably, the support 4 is a glass fibre reinforced plastic support. Preferably, the end face of the large diameter end 41 is provided with an adhesive layer to the outer side wall of the inner wall layer 5 (i.e., the surface on the side close to the outer wall layer 1). Preferably, the mounting base 6 is welded to the inner side wall of the outer wall layer 1 (i.e., the surface on the side near the inner wall layer 5). Preferably, the outer side wall of the inner wall layer 5 is provided with a positioning piece corresponding to each supporting piece 4, and the position of the supporting piece 4 corresponding to the positioning piece is provided with a positioning hole. Preferably, the positioning member is disposed opposite the mounting seat 6. And the number of the positioning pieces can be one or more, and when the number of the positioning pieces is three or more, at least one positioning piece is the outer side of the connecting line of two of the positioning pieces.
In the sixth embodiment, as shown in fig. 2, in the fifth embodiment, the heat insulating core layer includes a plurality of vacuum heat insulating layers 2 stacked in sequence from inside to outside, and a plurality of vacuum protection layers 3 arranged in sequence from inside to outside at intervals; two vacuum protection layers 3 adjacently disposed form an accommodation space such that the accommodation space accommodates a plurality of vacuum insulation layers 2. Preferably, the vacuum insulation layer 2 includes a plurality of vacuum insulation panels stacked in sequence; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer; glass fiber layers are wound on the outer surfaces of the vacuum insulation panels; the outer surface of the glass fiber layer is provided with a metal net. The vacuum heat insulation plate obtains high-efficiency heat insulation performance after being evacuated and sealed, so that the vacuum heat insulation layer 2 is light and thin; therefore, the invention does not need to vacuumize the closed space like the prior art, thereby reducing the wall thickness of the inner wall layer 5 and the outer wall layer 1, reducing the weight, and being particularly suitable for space stations. And the vacuum insulation panel does not need to support the inner wall layer 5 and the outer wall layer 1 in the invention, and the vacuum insulation panel is supported and installed by a metal net.
Illustratively, as shown in fig. 2, in practical application, the method for manufacturing the efficient heat insulation structure for the space station is as follows, but not limited to:
(1) Welding limiting pieces on the inner wall layer 5, wherein the length of the limiting pieces is not limited to 5mm, and the inner wall layer 5 is provided with 4 limiting pieces so as to limit the glass fiber reinforced plastic supporting pieces to move along the inner wall layer 5;
(2) The two end surfaces of the glass fiber reinforced plastic support piece are uniformly coated with low-temperature-resistant glue, the end surface of the large-diameter end 41 is connected with the inner wall layer 5, and the end surface of the small-diameter end 42 is connected with the spring 7;
(3) The vacuum heat insulation layer 2 (composed of a plurality of vacuum heat insulation plates and a plurality of vacuum protection surface layers) is paved on the outer side wall of the glass fiber reinforced plastic support piece, then an aluminum foil tape is adopted to form a bonding layer on the outer surface of the vacuum heat insulation layer 2 for connection and fixation, then a glass fiber layer is formed by winding and fixation of a glass fiber belt, and finally a metal mesh is formed by a metal mesh with 200 meshes for fixation; integrating the vacuum heat insulation layer 2, the glass fiber reinforced plastic support piece and the inner wall layer 5;
(4) The installation seat 6 is welded on the inner wall of the outer wall layer 1, the installation seat 6 is of a tubular structure, the length is 10mm but not limited to, 1 installation seat is arranged, and the position requirement is that the extension line of the central axis of the installation seat 6 is preferably coincident with the central line of the glass fiber reinforced plastic support;
(5) The spring 7 and the small diameter end 42 are inserted into the mounting seat 6, and an outer wall connecting seam and an inner and outer wall connecting seam are welded;
(6) Ar or CO with small heat conductivity coefficient is adopted at the reserved opening of the gas replacement of the inner wall and the outer wall 2 And (3) purging the closed space between the inner wall layer 5 and the outer wall layer 1 for 30min, and stopping purging, and welding and plugging the inner and outer wall gas replacement reserved openings.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (9)
1. An efficient insulated storage unit for a space station, provided with at least one storage chamber, characterized in that:
the first side wall of the storage cavity comprises an inner wall layer, a supporting piece, a heat insulation core layer and an outer wall layer which are sequentially arranged from the storage cavity towards the outer environment;
the inner wall layer and the outer wall layer form a closed space, and the closed space is filled with gas with low heat conductivity coefficient;
the supporting piece is of a horn-shaped structure and comprises a large-diameter end connected with the inner wall layer and a small-diameter end propped against the outer wall layer after penetrating through the heat insulation core layer;
the two supporting pieces which are oppositely arranged on the first side wall are symmetrically arranged.
2. An efficient insulated storage unit for space stations as defined in claim 1, wherein:
and a spring is arranged between the small-diameter end and the outer wall layer.
3. An efficient insulated storage unit for space stations as defined in claim 2, wherein:
the spring mounting device is characterized in that a mounting seat is arranged between the small-diameter end and the spring, the mounting seat is provided with a first mounting groove for accommodating the small-diameter end, and the mounting seat is provided with a second mounting groove for accommodating the spring.
4. A high efficiency insulated storage apparatus for space stations according to any one of claims 1-3, wherein:
the heat insulation core layer comprises a plurality of vacuum heat insulation layers which are sequentially overlapped from the storage cavity towards the outside environment, and a plurality of vacuum protection layers which are sequentially arranged from the storage cavity towards the outside environment at intervals;
the two adjacent vacuum protection layers form an accommodating space, so that the accommodating space accommodates a plurality of vacuum heat insulation layers.
5. An efficient insulated storage unit for space stations as recited in claim 4, wherein:
the vacuum heat insulation layer comprises a plurality of vacuum heat insulation plates which are sequentially stacked; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer;
the outer surfaces of the plurality of vacuum insulation panels are wound with glass fiber layers;
the outer surface of the glass fiber layer is provided with a metal net.
6. A high efficiency insulation structure for a space station, comprising:
an inner wall layer, a supporting piece, a heat insulation core layer and an outer wall layer which are sequentially arranged from inside to outside;
the inner wall layer and the outer wall layer form a closed space, and the closed space is filled with gas with low heat conductivity coefficient;
the supporting piece is of a horn-shaped structure and comprises a large-diameter end connected with the inner wall layer and a small-diameter end propped against the outer wall layer after penetrating through the heat insulation core layer.
7. The efficient insulation structure for a space station of claim 6, wherein:
a spring is arranged between the small-diameter end and the outer wall layer;
the spring mounting device is characterized in that a mounting seat is arranged between the small-diameter end and the spring, the mounting seat is provided with a first mounting groove for accommodating the small-diameter end, and the mounting seat is provided with a second mounting groove for accommodating the spring.
8. A high efficiency insulation structure for a space station according to claim 6 or 7, wherein:
the heat insulation core layer comprises a plurality of layers of vacuum heat insulation layers which are sequentially overlapped from inside to outside, and a plurality of layers of vacuum protection layers which are sequentially arranged at intervals from inside to outside;
the two adjacent vacuum protection layers form an accommodating space, so that the accommodating space accommodates a plurality of vacuum heat insulation layers.
9. A high efficiency insulation structure for a space station as defined in claim 8, wherein:
the vacuum heat insulation layer comprises a plurality of vacuum heat insulation plates which are sequentially stacked; two adjacently arranged vacuum heat insulation plates are connected through a bonding layer;
the outer surfaces of the plurality of vacuum insulation panels are wound with glass fiber layers;
the outer surface of the glass fiber layer is provided with a metal net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811643151.3A CN109578753B (en) | 2018-12-29 | 2018-12-29 | Efficient heat-insulating storage device and structure for space station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811643151.3A CN109578753B (en) | 2018-12-29 | 2018-12-29 | Efficient heat-insulating storage device and structure for space station |
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| CN109578753A CN109578753A (en) | 2019-04-05 |
| CN109578753B true CN109578753B (en) | 2023-07-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR1301735A (en) * | 1960-09-26 | 1962-08-17 | Chicago Bridge & Iron Co | Insulation device for storage tank for cryogenic liquids and tanks comprising such a device |
| CN202691581U (en) * | 2012-05-23 | 2013-01-23 | 张家港市科华化工装备制造有限公司 | Welded insulated gas cylinder |
| CN206831138U (en) * | 2017-06-09 | 2018-01-02 | 烟台太晴氢能科技有限公司 | A kind of LNG storage tank of vacuum heat insulating plate structure and the LNG feeders containing the storage tank |
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