Front sealing head mechanism of horizontal low-temperature container

Abstract

The utility model provides a front end socket mechanism of a horizontal low-temperature container, the front end socket mechanism comprises an outer front end socket, a front support plate, a plurality of reinforcing rib plates, a support neck tube, a support frame and an inner front end socket, the outer front end socket, the support neck tube and the inner front end socket are coaxially arranged from outside to inside, and a vacuum interlayer is formed between the outer front end socket and the inner front end socket; the front supporting plate is fixedly installed on the outer front end socket and arranged in the middle of the outer front end socket, the reinforcing rib plates are distributed in the circumferential direction of the front supporting plate and perpendicularly installed on the inner wall face of the outer front end socket, the outer end of the supporting neck pipe is connected with the front supporting plate, and the rear end of the supporting neck pipe is connected with the supporting frame. The middle of the supporting frame is arched outwards, and at least one pair of kidney-shaped holes are formed in the supporting frame; a water removal bag and a hydrogen removal bag are arranged in the vacuum interlayer; the supporting neck tube is filled with a heat insulation material; according to the front sealing head mechanism, the stability of the horizontal low-temperature container in the storage and transportation process is guaranteed, and heat leakage of the horizontal low-temperature container is reduced.

Description

Technical Field

[0001] The present application relates to the field of cryogenic container manufacturing, and in particular to a front head sealing mechanism of a horizontal cryogenic container. Background Art

[0002] The front head mechanism is a head structure type suitable for horizontal cryogenic containers such as high vacuum cryogenic insulated gas cylinders and small high vacuum cryogenic storage tanks. The cryogenic insulated gas cylinders are composed of an inner liner and an outer shell, and the connection support between the inner liner and the outer shell is one of the main forms of heat leakage in cryogenic containers. Utility Model Content

[0003] In view of the above technical problems, the purpose of the present application is to provide a front head mechanism for reducing heat leakage of a horizontal low-temperature container.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a front head mechanism of a horizontal low-temperature container, the front head mechanism includes an outer front head, a front support plate, a plurality of reinforcing ribs, a support neck tube, a support frame and an inner front head, the outer front head, the support neck tube and the inner front head are coaxially arranged from the outside to the inside, and a vacuum interlayer is formed between the outer front head and the inner front head; the front support plate is fixedly installed on the outer front head and arranged in the middle of the outer front head, the plurality of reinforcing ribs are distributed around the circumference of the front support plate and are respectively vertically installed on the inner wall surface of the outer front head, the outer end portion of the support neck tube is connected to the front support plate, the rear end portion of the support neck tube is connected to the support frame, and the support frame is constructed so that the middle portion is arched outward and is provided with at least one pair of waist-shaped holes; at least one water removal bag and at least one hydrogen removal bag are arranged in the vacuum interlayer; the support neck tube is filled with insulating material.

[0005] In the above technical solution, it is further preferred that the thickness of the front support plate is greater than the thickness of the outer front head, and the diameter of the front support plate is greater than one third of the diameter of the outer front head.

[0006] In the above technical solution, it is further preferred that the support neck tube is a thin-walled seamless pipe.

[0007] In the above technical solution, it is further preferred that the support frame includes a support plate connected to the support neck tube and a pair of support ribs connected to the inner front head, the support plate is provided with a connecting hole for the inner end portion of the support neck tube to be inserted, and the at least one pair of waist-shaped holes is arranged to avoid the connecting hole.

[0008] In the above technical solution, it is further preferred that each of the support ribs has an inner end surface at least partially connected to the inner front head, the middle part of the inner end surface is arched outward, and the inner end surface includes a pair of contact surfaces in contact with the inner front head and an arched surface located on the outside of the inner front head, and the arched surface is located between the pair of contact surfaces.

[0009] In the above technical solution, it is further preferred that the total area of ​​the pair of contact surfaces is smaller than the area of ​​the arched surface.

[0010] In the above technical solution, it is further preferred that the at least one water removal package is installed on the inner wall surface of the outer front head, and the at least one hydrogen removal package is installed on the outer wall surface of the inner front head.

[0011] In the above technical solution, it is further preferred that the water removal bag is filled with a low-temperature adsorbent for absorbing the moisture in the vacuum interlayer, and the hydrogen removal bag is filled with a chemical adsorbent for absorbing the hydrogen in the vacuum interlayer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The front head mechanism of the present application is used to stably support the inner liner of the horizontal low-temperature container in its outer shell, ensure the stability of the horizontal low-temperature container during storage and transportation, and reduce heat conduction between the inner liner and the outer shell, thereby reducing heat leakage of the horizontal low-temperature container. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a front head sealing mechanism according to an embodiment of the present application;

[0015] Figure 2 for Figure 1 A front view of the support frame in FIG.

[0016] Figure 3 for Figure 2 Side view of the support frame.

[0017] Among them: 10. Front head mechanism; 1. External front head; 2. Front support plate; 3. Reinforcement rib plate; 4. Support neck tube; 41. External end; 42. Internal end; 5. Support frame; 51. Support plate; 511. Connecting hole; 512. Waist-shaped hole; 52. Support rib; 521. Contact surface; 522. Arched surface; 6. Internal front head; 7. Water removal bag; 8. Hydrogen removal bag. DETAILED DESCRIPTION

[0018] The “inside” and “outside” mentioned in this application are as follows: Figure 1 Shown inside and out.

[0019] The present application provides a front head sealing mechanism for a horizontal low-temperature container, which comprises an outer shell and an inner liner supported inside the outer shell. The front head sealing mechanism is used to stably and coaxially support the inner liner in the outer shell and reduce heat conduction between the inner liner and the outer shell, thereby reducing heat leakage of the horizontal low-temperature container.

[0020] like Figure 1 As shown, the front head mechanism 10 includes an outer front head 1, a front support plate 2, a plurality of reinforcing rib plates 3, a support neck tube 4, a support frame 5 and an inner front head 6. The outer front head 1, the support neck tube 4 and the inner front head 6 are coaxially arranged from the outside to the inside, and a vacuum interlayer is formed between the outer front head 1 and the inner front head 6. The plurality of reinforcing rib plates 3, the support neck tube 4 and the support frame 5 are all accommodated in the vacuum interlayer.

[0021] The front support plate 2 is fixedly mounted on the outer front head 1. An opening is provided in the middle of the outer front head 1. The front support plate 2 is in a round shape and is interference fit at the opening. The joints between the front support plate 2 and the outer front head 1 are welded. The thickness of the front support plate 2 is greater than the wall thickness of the outer front head 1, and the diameter of the front support plate 2 is greater than one third of the diameter of the outer front head 1. Several reinforcing rib plates 3 are distributed around the circumference of the front support plate 2 and are vertically welded to the inner wall surface of the outer front head 1 respectively. The front support plate 2 and several reinforcing rib plates 3 are used to enhance the rigidity of the outer front head 1 to prevent the outer front head 1 from being dented during transportation of the horizontal low-temperature container or under harsh working conditions.

[0022] The support neck tube 4 has an outer end 41 and an inner end 42 that are far away from each other. The outer end 41 is welded to the front support plate 2, and the inner end 42 is welded to the support frame 5 and connected to the inner front head 6 through the support frame 5. The support neck tube 4 and the support frame 5 fix the outer front head 1 and the inner front head 6, and coaxially support the inner front head 6 on the inner side of the outer front head 1. The support neck tube 4 is a thin-walled seamless pipe. While ensuring the support strength of the support neck tube 4, the wall thickness of the support neck tube 4 is reduced as much as possible, thereby reducing the cross-sectional area of ​​the support neck tube 4 and effectively reducing the heat conduction between the inner liner and the outer shell of the horizontal low-temperature container. The support neck tube 4 is also filled with an insulating material, which is used to isolate the heat conducted from the front support plate 2 to the support neck tube 4, so that the front head mechanism 10 achieves a better insulation effect.

[0023] like Figure 1-3As shown, the support frame 5 is constructed so that the middle part is arched outward, thereby reducing the contact area with the inner front head 6. The support frame 5 includes a support plate 51 connected to the support neck tube 4 and a pair of support ribs 52 connected to the inner front head 6. The support plate 51 is provided with a connection hole 511 for the inner end portion 42 of the support neck tube 4 to be inserted and at least a pair of waist-shaped holes 512 arranged to avoid the connection hole 511. The support neck tube 4 is interference-fitted in the connection hole 511 and welded to the support plate 51; the hollow waist-shaped hole 512 is used to reduce the heat conduction area of ​​the support frame 5.

[0024] A pair of support ribs 52 are arranged perpendicularly to the support plate 51, and each support rib 52 has an inner end surface at least partially connected to the inner front head 6, the middle part of the inner end surface arches outward, and the inner end surface includes a pair of contact surfaces 521 in contact with the inner front head 6 and an arched surface 522 located on the outer side of the inner front head 6, and the arched surface 522 is located between the pair of contact surfaces 521 and does not contact the inner front head 6. The total area of ​​the pair of contact surfaces 521 is smaller than the area of ​​the arched surface 522, while ensuring the firmness of the connection between the support frame 5 and the inner front head 6, the area of ​​the contact surface 521 is minimized as much as possible, thereby reducing the heat conduction area of ​​the support frame 5, thereby improving the thermal insulation performance.

[0025] Continue to refer to Figure 1 At least one water removal bag 7 and at least one hydrogen removal bag 8 are also provided in the vacuum interlayer. The water removal bag 7 is installed on the inner wall surface of the outer front head 1, and the hydrogen removal bag 8 is installed on the outer wall surface of the inner front head 6. The water removal bag 7 is filled with a low-temperature adsorbent for absorbing moisture in the vacuum interlayer, and the hydrogen removal bag 8 is filled with a chemical adsorbent for absorbing hydrogen in the vacuum interlayer. The vacuum interlayer can effectively isolate the heat transfer between the inner liner and the outer shell. The water removal bag 7 and the hydrogen removal bag 8 keep the vacuum interlayer in a negative pressure state for a long time, maintaining the thermal insulation performance of the vacuum interlayer.

[0026] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and the scope of protection required by the present invention is defined by the attached claims, description and their equivalents.

Claims

1. A front head mechanism for a horizontal cryogenic container, characterized in that: The front head mechanism includes an outer front head, a front support plate, a plurality of reinforcing ribs, a support neck tube, a support frame and an inner front head. The outer front head, the support neck tube and the inner front head are coaxially arranged from the outside to the inside, and a vacuum interlayer is formed between the outer front head and the inner front head; the front support plate is fixedly mounted on the outer front head and arranged in the middle of the outer front head; the plurality of reinforcing ribs are distributed around the circumference of the front support plate and are respectively vertically mounted on the inner wall surface of the outer front head; the outer end portion of the support neck tube is connected to the front support plate, and the rear end portion of the support neck tube is connected to the support frame; the support frame is constructed so that the middle portion is arched outward and is provided with at least one pair of waist-shaped holes; at least one water removal bag and at least one hydrogen removal bag are arranged in the vacuum interlayer; the support neck tube is filled with insulating material.

2. The front head sealing mechanism according to claim 1, characterized in that: The thickness of the front support plate is greater than the thickness of the outer front head, and the diameter of the front support plate is greater than one third of the diameter of the outer front head.

3. The front head sealing mechanism according to claim 1, characterized in that: The supporting neck pipe is a thin-wall seamless pipe.

4. The front head sealing mechanism according to claim 1, characterized in that: The support frame includes a support plate connected to the support neck tube and a pair of support ribs connected to the inner front head. The support plate is provided with a connection hole for the inner end of the support neck tube to be inserted, and the at least one pair of waist-shaped holes is arranged to avoid the connection hole.

5. The front head sealing mechanism according to claim 4, characterized in that: Each of the support ribs has an inner end surface that is at least partially connected to the inner front head, the middle part of the inner end surface is arched outward, and the inner end surface includes a pair of contact surfaces in contact with the inner front head and an arched surface located on the outside of the inner front head, and the arched surface is located between the pair of contact surfaces.

6. The front head sealing mechanism according to claim 5, characterized in that: The total area of ​​the pair of contact surfaces is smaller than the area of ​​the arched surface.

7. The front head sealing mechanism according to claim 1, characterized in that: The at least one water removal package is installed on the inner wall surface of the outer front head, and the at least one hydrogen removal package is installed on the outer wall surface of the inner front head.

8. The front head sealing mechanism according to claim 7, characterized in that: The dehydration bag is filled with a low-temperature adsorbent for absorbing the moisture in the vacuum interlayer, and the dehydrogenation bag is filled with a chemical adsorbent for absorbing the hydrogen in the vacuum interlayer.

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