Deformation compensation support structure applicable to cryogenic environment

Abstract

The present invention discloses a deformation compensation support structure applicable to cryogenic environments. The bushing is arranged on the support rod in an eccentric manner. The first liquid-cooled plate connecting piece connects the first inner layer support piece, and the second liquid-cooled plate connecting piece connects the second inner layer support piece. The outer side of the outer metal connecting piece is connected to the inner dewar, and the inner side is connected to one side of the first carbon fiber epoxy layer and one side of the second carbon fiber epoxy layer. The other side of the first carbon fiber epoxy layer is connected to one end of the first intermediate layer support piece, and the other side of the second carbon fiber epoxy layer is connected to one end of the second intermediate layer support piece. The other end of the first intermediate layer support piece is connected to one side of the third fiberglass oxide layer, and the other end of the second intermediate layer support piece is connected to one side of the fourth fiberglass epoxy layer. The other side of the third fiberglass oxide layer is connected to the first inner layer support piece, and the other side of the fourth fiberglass epoxy layer is connected to the second inner layer support piece. The first fiberglass epoxy layer is arranged between the first inner layer support piece and the bushing, and the second fiberglass epoxy layer is arranged between the second inner layer support piece and the bushing.

Description

Technical Field

[0001] The present invention relates to the technical field of deformation compensation supports, and particularly relates to a deformation compensation support structure applicable to cryogenic environments. Background Art

[0002] In the fields of cryogenic liquid storage, cryogenic research, and superconductivity, Dewar flasks play a crucial role and can well maintain a cryogenic environment, thereby reducing the energy consumption of refrigeration equipment. The current Dewar flask was invented by Sir James Dewar, a Scottish physicist and chemist, and generally adopts a double-layer structure, including an inner Dewar and an outer Dewar, and a support structure for heat insulation is provided. In this technical field, the design requirement of the support structure is to reduce heat leakage as much as possible on the basis of ensuring the support strength.

[0003] Existing Dewar flasks are mostly used for the support and stability of liquid helium Dewars in a vertical state and only bear unidirectional loads, and are not applicable to special-shaped Dewars that bear dynamic loads and vibration impacts. Summary of the Invention

[0004] The present invention provides a deformation compensation support structure applicable to cryogenic environments, which can solve the technical problems in the prior art.

[0005] The present invention provides a deformation compensation support structure applicable to cryogenic environments. Among them, the support structure includes a support rod, a first intermediate layer support, a bushing, a first fiberglass epoxy layer, a second fiberglass epoxy layer, a first inner layer support, a second inner layer support, a third fiberglass epoxy layer, a fourth fiberglass epoxy layer, a second intermediate layer support, a first carbon fiber epoxy layer, a second carbon fiber epoxy layer, an outer metal connector, a first liquid-cooled plate connector, and a second liquid-cooled plate connector.

[0006] The bushing is arranged on the support rod in an eccentric manner. Both ends of the support rod are connected to the outer Dewar. The first liquid-cooled plate connector is connected to the first inner layer support, and the second liquid-cooled plate connector is connected to the second inner layer support.

[0007] The outer side of the outer metal connector is connected to the inner Dewar. The inner side of the outer metal connector is connected to one side of the first carbon fiber epoxy layer and one side of the second carbon fiber epoxy layer. The other side of the first carbon fiber epoxy layer is connected to one end of the first intermediate layer support. The other side of the second carbon fiber epoxy layer is connected to one end of the second intermediate layer support. The other end of the first intermediate layer support is connected to one side of the third fiberglass oxide layer. The other end of the second intermediate layer support is connected to one side of the fourth fiberglass epoxy layer. The other side of the third fiberglass oxide layer is connected to the first inner layer support. The other side of the fourth fiberglass oxide layer is connected to the second inner layer support.

[0008] The first fiberglass epoxy layer is disposed between the first inner layer support member and the bushing, and the second fiberglass epoxy layer is disposed between the second inner layer support member and the bushing.

[0009] Preferably, the support structure further includes a fixing member, and the first liquid-cooled plate connecting member and the first inner layer support member are connected by the fixing member, and the second liquid-cooled plate connecting member and the second inner layer support member are connected by the fixing member.

[0010] Preferably, the fixing member is a screw.

[0011] Preferably, the materials of the first inner layer support member, the first intermediate layer support member, the second intermediate layer support member, and the second inner layer support member are stainless steel.

[0012] Preferably, the material of the outer metal connecting member is stainless steel.

[0013] Preferably, a plurality of mounting holes are provided on the outer metal connecting member, and the outer metal connecting member is connected to the inner dewar by cooperating with bolts through the plurality of mounting holes.

[0014] By the above technical solution, the bushing adopts an eccentric design, and a multi-layer sleeve deformation compensation support structure including a fiberglass epoxy resin sleeve and a carbon fiber epoxy resin sleeve can be realized. Moreover, the structure is simple and compact, has a long heat transfer path, is convenient to operate, has good stability performance, balanced stiffness and strength performance in all directions, is convenient to install the liquid helium dewar body, and can effectively stably support the horizontally placed liquid helium dewar body, and can withstand vibration and impact loads, and has good anti-fatigue performance. Description of the Drawings

[0015] The accompanying drawings included are used to provide a further understanding of the embodiments of the present invention, which form a part of the specification, are used to illustrate the embodiments of the present invention, and are used to explain the principles of the present invention together with the text description. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0016] Figure 1 Shows a top view of a deformation compensation support structure applicable to a cryogenic environment according to an embodiment of the present invention;

[0017] Figure 2 Shows along Figure 1 The cross-sectional view taken along A-A in

[0018] Description of the Reference Numerals

[0019] 1 Support rod; 2 First intermediate layer support member; 3 Bushing; 4 First fiberglass epoxy layer;

[0020] 5 Second fiberglass epoxy layer; 6 First inner layer support; 7 Second inner layer support;

[0021] 8 Third fiberglass epoxy layer; 9 Fourth fiberglass epoxy layer; 10 Second intermediate layer support;

[0022] 11 First carbon fiber epoxy layer; 12 Second carbon fiber epoxy layer; 13 Outer metal connector;

[0023] 14 First liquid cooling plate connector; 15 Second liquid cooling plate connector; 16 Fixing member. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] As Figure 1 and 2 shown, an embodiment of the present invention provides a deformation compensation support structure applicable to cryogenic environments. Among them, the support structure includes a support rod 1, a first intermediate layer support member 2, a bushing 3, a first fiberglass epoxy layer 4, a second fiberglass epoxy layer 5, a first inner layer support member 6, a second inner layer support member 7, a third fiberglass epoxy layer 8, a fourth fiberglass epoxy layer 9, a second intermediate layer support member 10, a first carbon fiber epoxy layer 11, a second carbon fiber epoxy layer 12, an outer metal connecting member 13, a first liquid cooling plate connecting member 14, and a second liquid cooling plate connecting member 15.

[0028] The bushing 3 is arranged on the support rod 1 in an eccentric manner (i.e., the bushing and the support rod are not coaxial). Both ends of the support rod 1 are connected to the outer dewar. The first liquid cooling plate connecting member 14 is connected to the first inner layer support member 6, and the second liquid cooling plate connecting member 15 is connected to the second inner layer support member 7.

[0029] The outer side of the outer metal connecting member 13 is connected to the inner dewar. The inner side of the outer metal connecting member 13 is connected to one side of the first carbon fiber epoxy layer 11 and one side of the second carbon fiber epoxy layer 12. The other side of the first carbon fiber epoxy layer 11 is connected to one end of the first intermediate layer support member 2. The other side of the second carbon fiber epoxy layer 12 is connected to one end of the second intermediate layer support member 10. The other end of the first intermediate layer support member 2 is connected to one side of the third fiberglass oxide layer 8. The other end of the second intermediate layer support member 10 is connected to one side of the fourth fiberglass epoxy layer 9. The other side of the third fiberglass oxide layer 8 is connected to the first inner layer support member 6. The other side of the fourth fiberglass oxide layer 9 is connected to the second inner layer support member 7.

[0030] The first fiberglass epoxy layer 4 is arranged between the first inner layer support member 6 and the bushing 3, and the second fiberglass epoxy layer 5 is arranged between the second inner layer support member 7 and the bushing 3.

[0031] Through the above technical solution, the bushing adopts an eccentric design, and a multi-layer sleeve deformation compensation support structure including a fiberglass epoxy resin sleeve and a carbon fiber epoxy resin sleeve can be realized. Moreover, the structure is simple and compact, has a long heat transfer path, is convenient to operate, has good stability, balanced stiffness and strength performance in all directions, is convenient to install the liquid helium dewar body, can effectively stably support the horizontally placed liquid helium dewar body, can withstand vibration and impact loads, and has good anti-fatigue performance.

[0032] More specifically, the sleeve is set in an eccentric manner, and the entire support structure is subjected to a unidirectional shear load under the action of the dewar shrinkage load. After the support structure is loaded, the center of the support rod coincides axially with the remaining metal parts, thereby ensuring that there is sufficient clearance between the center rod and various locations when bearing load, thereby achieving deformation compensation support for the dewar body.

[0033] The outer metal connector 13, the first carbon fiber epoxy layer 11 and the second carbon fiber epoxy layer 12 operate in the liquid helium temperature region.

[0034] According to one embodiment of the present invention, the support structure may further include a fixing member 16, through which the first liquid cooling plate connector 14 and the first inner layer support member 6 are connected, and through which the second liquid cooling plate connector 15 and the second inner layer support member 7 are connected.

[0035] This can provide a better fixing and supporting effect.

[0036] According to an embodiment of the present invention, the fixing member 16 may be a screw.

[0037] According to an embodiment of the present invention, the first inner layer support member 6 , the first middle layer support member 2 , the second middle layer support member 10 and the second inner layer support member 7 may be made of stainless steel.

[0038] According to an embodiment of the present invention, the material of the outer metal connector 13 may be stainless steel.

[0039] Those skilled in the art should understand that the above description of materials is merely exemplary and is not intended to limit the present invention.

[0040] According to an embodiment of the present invention, a plurality of mounting holes are provided on the outer metal connector 13, and the outer metal connector 13 is connected to the inner Dewar through the plurality of mounting holes and bolts.

[0041] That is, the outer metal connector is connected to the inner Dewar through mounting holes and bolts.

[0042] For example, the bolt may be a titanium alloy bolt (eg, an M6 bolt), and the number of the mounting holes may be 8, but the present invention is not limited thereto.

[0043] More specifically, for the deformation compensation support structure for deep cold environment described in the above embodiment of the present invention, the connection sequence of the components of the support structure from the outside to the inside is: outer metal connecting part-carbon fiber epoxy layer-middle layer support part-glass fiber epoxy layer-inner layer support part-glass fiber epoxy layer-bushing-support rod.

[0044] The heat conduction path is as follows: outer dewar - support rod - bushing - fiberglass epoxy layer - inner support member - fiberglass epoxy layer - intermediate support member - carbon fiber epoxy layer - outer metal connecting member - inner dewar.

[0045] It can be seen that the deformation compensation support structure described in the present invention can make full use of the low thermal conductivity of the epoxy fiberglass material at the high - temperature end and the low thermal conductivity of the epoxy carbon fiber material at the low - temperature end, increase the thermal resistance between the inner dewar and the outer dewar, and effectively isolate the heat transfer from the outer dewar to the inner dewar.

[0046] The support structure described in the present invention has extremely high load - bearing capacity. Through experimental tests, in a 5K environment, the safety factor can reach more than 2.5. The heat leakage is about 0.25W, which is about 80% higher than that of the same - type metal solution.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0048] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0049] In addition, it should be noted that using words such as "first", "second" to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning. Therefore, it cannot be understood as a limitation on the protection scope of the present invention.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A deformation compensation support structure applicable to cryogenic environments, characterized in that, the support structure includes a support rod (1), a first intermediate layer support (2), a bushing (3), a first fiberglass epoxy layer (4), a second fiberglass epoxy layer (5), a first inner layer support (6), a second inner layer support (7), a third fiberglass epoxy layer (8), a fourth fiberglass epoxy layer (9), a second intermediate layer support (10), a first carbon fiber epoxy layer (11), a second carbon fiber epoxy layer (12), an outer metal connector (13), a first liquid cooling plate connector (14), and a second liquid cooling plate connector (15), the bushing (3) is arranged on the support rod (1) in an eccentric manner, both ends of the support rod (1) are connected to an outer dewar, the first liquid cooling plate connector (14) is connected to the first inner layer support (6), and the second liquid cooling plate connector (15) is connected to the second inner layer support (7); the outside of the outer metal connector (13) is connected to an inner dewar, the inside of the outer metal connector (13) is connected to one side of the first carbon fiber epoxy layer (11) and one side of the second carbon fiber epoxy layer (12), the other side of the first carbon fiber epoxy layer (11) is connected to one end of the first intermediate layer support (2), the other side of the second carbon fiber epoxy layer (12) is connected to one end of the second intermediate layer support (10), the other end of the first intermediate layer support (2) is connected to one side of the third fiberglass epoxy layer (8), the other end of the second intermediate layer support (10) is connected to one side of the fourth fiberglass epoxy layer (9), the other side of the third fiberglass epoxy layer (8) is connected to the first inner layer support (6), and the other side of the fourth fiberglass epoxy layer (9) is connected to the second inner layer support (7); the first fiberglass epoxy layer (4) is arranged between the first inner layer support (6) and the bushing (3), and the second fiberglass epoxy layer (5) is arranged between the second inner layer support (7) and the bushing (3); the support structure further includes a fixing member (16), the first liquid cooling plate connector (14) and the first inner layer support (6) are connected through the fixing member (16), and the second liquid cooling plate connector (15) and the second inner layer support (7) are connected through the fixing member (16); the fixing member is a screw; the materials of the first inner layer support (6), the first intermediate layer support (2), the second intermediate layer support (10), and the second inner layer support (7) are stainless steel.

2. The support structure according to claim 1, characterized in that, the material of the outer metal connector (13) is stainless steel.

3. The support structure according to claim 1, characterized in that, a plurality of mounting holes are provided on the outer metal connector (13), and the outer metal connector (13) is connected to the inner dewar through cooperation with bolts by means of the plurality of mounting holes.

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