Low-temperature supporting device applied to vacuum environment

Abstract

The utility model relates to the field of low-temperature assembly, and discloses a low-temperature supporting device applied to a vacuum environment, which comprises a vacuum container, a corrugated pipe expansion joint, a cold insulation block, a supporting block and a threaded ejector rod, one end of the corrugated pipe expansion joint is a closed end, the other end of the corrugated pipe expansion joint is an open end, and the open end of the corrugated pipe expansion joint is connected to the side wall of the vacuum container. The closed end of the corrugated pipe expansion joint is arranged in the vacuum container, the supporting block is connected to the closed end of the corrugated pipe expansion joint through the cold insulation block, the threaded ejector rod is sleeved with the corrugated pipe expansion joint, and internal threads matched with the threaded ejector rod are machined on the inner wall of the open end of the corrugated pipe expansion joint. The corrugated pipe expansion joint is rotated to drive the supporting block to get close to or away from a cooled body. According to the utility model, the support block can be conveniently controlled to be in contact with or separated from the cooled body, so that the cooled body can be quickly cooled and supported in a vacuum environment, meanwhile, the vacuum environment is prevented from being damaged, and the time and energy consumption for repeatedly establishing the vacuum environment are effectively saved.

Description

Technical Field

[0001] The utility model relates to the field of cryogenic assembly, in particular to a cryogenic support device applied to a vacuum environment. Background Art

[0002] When assembling equipment that needs to work in a vacuum and low-temperature environment, it is necessary to use the method of vacuum plus refrigeration. By using a vacuum environment, the radiation and convection of heat can be reduced, and a relatively stable low-temperature environment can be obtained, thereby reducing heat loss to meet the assembly requirements.

[0003] The existing heat conduction method is to fixedly connect a cold source and a cooled body in a sealable container, then pump out the air in the container to make the container in a vacuum state, and then turn on the cold source to cool the cooled body. Such a heat conduction method cannot contact and separate the cold source and the cooled body without destroying the vacuum environment. If control is required, it is necessary to first destroy the vacuum environment, contact or separate the cold source and the cooled body, and then perform the vacuum pumping operation. This operation will not only affect the cooling efficiency but also increase the energy consumption for establishing the vacuum environment. In addition, in order to ensure the uniformity of cooling, the cooled body generally needs to be suspended or installed in a jacketed manner in the container. Although this installation method can improve the uniformity of the cooled body, when the equipment is transported, tilted, or laid down, the cooled body in the container lacks support and is extremely prone to collide with the inner wall of the container, causing damage to the cooled body. However, setting a permanent support in the container will increase the heat loss of the cooled body and affect the cooling efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the background art, and provide a cryogenic support device applied to a vacuum environment. The support device can realize the contact and separation of the cold source and the cooled body without destroying the vacuum environment of the container, and can provide support for the cooled body to ensure the safety of equipment transportation.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A cryogenic support device applied to a vacuum environment includes a vacuum container, a bellows expansion joint, a cold insulation block, a support block, and a threaded ejector rod. One end of the bellows expansion joint is a closed end, and the other end is an open end. The open end of the bellows expansion joint is connected to the side wall of the vacuum container, and the closed end of the bellows expansion joint is placed inside the vacuum container. The cold insulation block is connected to the closed end of the bellows expansion joint. The support block is connected to the side of the cold insulation block away from the bellows expansion rod. The threaded ejector rod is sleeved inside the bellows expansion joint. The inner wall of the open end of the bellows expansion joint is processed with an internal thread adapted to the threaded ejector rod. Rotating the bellows expansion joint can drive the support block to approach or move away from the cooled body.

[0007] The cold insulation block includes an integrally formed support shaft and a diameter-expanded section. A connecting screw communicating with the support block is provided on the diameter-expanded section, and a threaded hole is machined at one end of the support shaft away from the hole-expanding section.

[0008] A convex block is provided on the outer wall of the closed end of the bellows expansion joint, and the convex block is threadedly connected to the threaded hole.

[0009] The cold insulation block is made of epoxy resin.

[0010] The support block communicates with the cold source outside the vacuum container.

[0011] The support block is made of copper.

[0012] The beneficial effects of the low-temperature support device applied to the vacuum environment provided by the present utility model are as follows:

[0013] (1) By sequentially arranging the bellows expansion joint, the cold insulation block and the support block, and cooperating with the threaded ejector rod, it is convenient to control the contact or separation between the support block and the body to be cooled. It can not only quickly conduct cold and support the body to be cooled in a vacuum environment, but also avoid damaging the vacuum environment, effectively saving the time and energy consumption for repeatedly establishing the vacuum environment;

[0014] (2) By providing the support shaft and the diameter-expanded section, the diameter-expanded section can facilitate the connection stability between the connecting screw and the support block. In addition, the support shaft can reduce the cross-sectional profile of the connection path, thereby reducing heat loss;

[0015] (3) By machining the convex block on the bellows expansion joint and using the threaded connection between the convex block and the threaded hole on the cold insulation block, it can not only reduce the contact area between the bellows expansion joint and the cold insulation block to reduce heat loss. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram provided by an embodiment of the present utility model.

[0018] Figure 2 It is a connection schematic diagram of the cold insulation block and the support block provided by an embodiment of the present utility model.

[0019] Reference numerals: 1, vacuum container; 2, bellows expansion joint; 3, open end; 4, closed end; 5, cold insulation block; 6, support shaft; 7, enlarged diameter section; 8, connecting screw; 9, threaded hole; 10, support block; 11, threaded ejector rod. Detailed implementation mode

[0020] Embodiment

[0021] As Figure 1 、 Figure 2 shown, the low-temperature support device applied to a vacuum environment provided in this embodiment includes a vacuum container 1, a bellows expansion joint 2, a cold insulation block 5, a support block 10, and a threaded ejector rod 11. One end of the bellows expansion joint 2 is a closed end 4, and the other end is an open end 3. The open end 3 of the bellows expansion joint 2 is connected to the side wall of the vacuum container 1, and the closed end 4 of the bellows expansion joint 2 is placed inside the vacuum container 1. The cold insulation block 5 is connected to the closed end 4 of the bellows expansion joint 2. The cold insulation block 5 is made of a material with an extremely low coefficient of thermal conductivity, such as epoxy resin. The cold insulation block 5 includes a support shaft 6 and an enlarged diameter section 7 formed integrally. A threaded hole 9 is machined at one end of the support shaft 6 away from the enlarged hole section. A convex block is provided on the outer wall of the closed end 4 of the bellows expansion joint 2, and the convex block is threadedly connected to the threaded hole 9. The support block 10 is connected to the side of the cold insulation block 5 away from the bellows expansion rod. The support block 10 communicates with a cold source outside the vacuum container 1. The cold source is liquid nitrogen, liquid helium, refrigerant, etc. The support block 10 is made of a material with an extremely high coefficient of thermal conductivity, such as copper. A connecting screw 8 communicating with the support block 10 is provided on the enlarged diameter section 7. The threaded ejector rod 11 is sleeved inside the bellows expansion joint 2. Internal threads adapted to the threaded ejector rod 11 are machined on the inner wall of the open end 3 of the bellows expansion joint 2. Rotating the bellows expansion joint 2 can drive the support block 10 to approach or move away from the object to be cooled.

[0022] The usage method of the present utility model is as follows:

[0023] First, place the object to be cooled into the vacuum container 1, then close it and evacuate it. When refrigeration is required, screw in the threaded ejector rod 11. The threaded ejector rod 11 gradually extends into the vacuum container 1. During the extension process, it pushes the bellows expansion joint 2 to elongate along the axial direction, so that the support block 10 contacts the object to be cooled. Subsequently, use the cold source to transfer cold energy to gradually cool the object to be cooled.

[0024] If only the support of the object to be cooled is required to ensure the stability of transportation, only the external cold source needs to be closed at this time.

[0025] When the object to be cooled does not require refrigeration or support, screw out the threaded ejector rod 11. At this time, the bellows expansion joint 2 returns to its original length, causing the support block 10 to disengage from the object to be cooled, thereby disconnecting the heat conduction and support.

[0026] The technical solution disclosed in this patent can ensure that the process of contact and detachment of the object to be cooled will not damage the vacuum environment of the sealed container, effectively saving the time and energy consumption for re - establishing the vacuum environment, improving the efficiency and effectiveness. At the same time, it can also provide support for the object to be cooled, effectively improving the safety during the transportation of the vacuum container 1.

[0027] The above are only the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modification and replacement based on the technical solution and the inventive concept provided by the present utility model should be covered within the protection scope of the present utility model. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale. At the same time, the present utility model omits the description of well - known components and processing techniques and processes to avoid unnecessarily limiting the present utility model.

Claims

1. A cryogenic support device for use in a vacuum environment, characterized in that: The invention comprises a vacuum container (1), a bellows expansion joint (2), a cold-insulating block (5), a support block (10) and a threaded push rod (11); one end of the bellows expansion joint (2) is a closed end (4) and the other end is an open end (3); the open end (3) of the bellows expansion joint (2) is connected to the side wall of the vacuum container (1); the closed end (4) of the bellows expansion joint (2) is placed inside the vacuum container (1); the cold-insulating block (5) is connected to the closed end (4) of the bellows expansion joint (2); the support block (10) is connected to the side of the cold-insulating block (5) away from the bellows expansion rod; the threaded push rod (11) is sleeved inside the bellows expansion joint (2); an internal thread matching the threaded push rod (11) is processed on the inner wall of the open end (3) of the bellows expansion joint (2); and the support block (10) can be driven to approach or move away from the cooled object by rotating the bellows expansion joint (2).

2. The low temperature support device for use in a vacuum environment according to claim 1, characterized in that: The cold isolating block (5) comprises an integrally formed support shaft (6) and an expanded diameter section (7); the expanded diameter section (7) is provided with a connecting screw (8) connected to the support block (10); and a threaded hole (9) is processed at one end of the support shaft (6) away from the expanded diameter section.

3. The low temperature support device for use in a vacuum environment according to claim 2, characterized in that: A convex block is provided on the outer wall of the closed end (4) of the bellows expansion joint (2), and the convex block is threadedly connected to the threaded hole (9).

4. The low temperature support device for use in a vacuum environment according to claim 2, characterized in that: The cold insulation block (5) is made of epoxy resin.

5. The low temperature support device for use in a vacuum environment according to claim 1, characterized in that: The support block (10) is in communication with a cold source outside the vacuum container (1).

6. The low temperature support device for use in a vacuum environment according to claim 5, characterized in that: The supporting block (10) is made of copper.

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