CN210319381U - Low-temperature liquid storage tank with novel bearing structure - Google Patents
Low-temperature liquid storage tank with novel bearing structure Download PDFInfo
- Publication number
- CN210319381U CN210319381U CN201920946172.6U CN201920946172U CN210319381U CN 210319381 U CN210319381 U CN 210319381U CN 201920946172 U CN201920946172 U CN 201920946172U CN 210319381 U CN210319381 U CN 210319381U
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- Prior art keywords
- shell
- support
- liner
- ring
- heat insulation
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- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
A low-temperature liquid storage tank with a novel bearing structure relates to a low-temperature liquid storage tank. Mainly be for solving the unable problem that satisfies the needs of present suspender pull rod bearing mode and designing. The inner container comprises a shell and an inner container, wherein a shell support is arranged on the inner wall of the shell, an inner container base plate on the outer wall of the inner container is connected with an upper shell support through a lifting belt pull rod, and a circumferential support seat is arranged on the inner wall of the shell; the lower end of the liner seal head of the liner is fixedly welded with a liner lower end bearing structure, the shell and the liner are connected in the vertical direction through a sling pull rod and the liner lower end bearing structure, the shell and the liner are connected in the circumferential direction through circumferential support, and support legs are arranged below the shell seal head; the bearing structure at the lower end of the liner consists of a supporting sleeve, a supporting sleeve semi-concave circle, a supporting ring, a supporting plate, a heat insulation column, a heat insulation ring sheet, a liner supporting ring and a supporting ring semi-concave circle.
Description
The technical field is as follows:
the utility model relates to a cryogenic liquids storage tank belongs to pressure vessel technical field, especially relates to a cryogenic liquids storage tank with novel bearing structure.
Background art:
the low-temperature liquid storage tank is a low-temperature pressure container which is composed of an inner container and an outer shell and is arranged in an inner-outer double-layer structure, the inner container is generally a stainless steel inner container and is used for storing low-temperature liquid such as liquefied natural gas, and the outer shell is a carbon steel or stainless steel outer shell. In the prior art, the liner loads the liner and the loading weight thereof on the top of the outer shell through the shell support and the liner base plate by utilizing the suspender pull rod, then the liner is transmitted to the lower end enclosure through the shell and then acts on the support leg of the whole low-temperature liquid storage tank, a vacuum heat insulation layer is arranged between the liner and the shell, and the vacuum heat insulation layer is internally wound with multiple layers of heat insulation paper or filled with pearlife. After the structure is arranged, the whole shell can bear the weight of the whole inner container and the loaded medium from the top to the lower end socket, so that the whole wall thickness of the shell of the low-temperature liquid storage tank is thicker, and the requirement of the whole bearing strength is met; in addition, the acting force of the hanging strip pull rod is concentrated in the area where the hanging strip pull rod support of the shell is fixed with the liner or the shell through the hanging strip pull rod support of the shell, so that larger local stress concentration inevitably occurs in the area where the support is fixed with the liner or the shell. Therefore, the outer shell of the cryogenic liquid storage tank is designed to be thicker in wall thickness so as to meet the strength requirement of bearing of the outer shell. Due to the application of the new strain strengthening technology, the low-temperature liquid storage tank is developed towards light weight, the design wall thickness of the inner container and the shell of the low-temperature liquid storage tank is reduced, the interlayer space between the inner container and the shell is reduced, and the application range of the bearing mode of the sling pull rod in the prior art is limited. Therefore, a technical solution is needed to solve the above problems based on the carrying manner of the existing sling pull rod.
The invention content is as follows:
the utility model aims to solve the technical problem that a cryogenic liquids storage tank with novel bearing structure is provided, on the bearing mode basis of current suspender pull rod, suspender pull rod application range receives the problem of restriction among the solution prior art, makes its intensity requirement that satisfies the shell and bear.
In order to achieve the above object, the utility model adopts the following technical scheme:
the thermal insulation liner comprises a shell and a liner arranged in the shell, wherein an upper shell support is fixedly welded on the inner wall of the upper part of the shell in a trisection mode in the circumferential direction, a lower shell support is fixedly welded on the inner wall of the shell below the upper shell support, an upper liner base plate and a lower liner base plate are welded on the outer wall of the liner, the upper liner base plate is connected with the upper shell support through a sling pull rod, two ends of the sling pull rod are fixedly welded with the upper liner base plate and the upper shell support respectively, the lower liner base plate is also connected with the lower shell support through the sling pull rod, two ends of the sling are fixedly welded with the lower liner base plate and the lower shell support respectively in a trisection mode in the circumferential direction, circumferential support seats for thermal insulation are sleeved on the circumferential support seats, the circumferential support seats and the upper shell support seats are arranged on the inner wall of the shell at intervals, and the circumferential support seats and the upper shell support seats are on the same; the lower part of the inner wall of the shell is fixedly welded with circumferential downward supporting seats in circumferential trisection, circumferential supports for heat insulation are sleeved on the circumferential downward supporting seats, the circumferential downward supporting seats and the lower shell support are arranged on the inner wall of the shell at intervals, and the circumferential downward supporting seats and the lower shell support are on the same horizontal line;
the lower end of the liner end socket of the liner is fixedly welded with a liner lower end bearing structure, the shell and the liner are connected in the vertical direction through a hanging strip pull rod and the liner lower end bearing structure, the shell and the liner are circumferentially connected through circumferential support, the lower side surface of the shell end socket of the shell is circumferentially trisected and is respectively and fixedly welded with supporting legs, and supporting leg base plates are respectively and fixedly welded between the shell end socket and the supporting legs;
the bearing structure at the lower end of the liner comprises a support sleeve, a support sleeve semi-concave circle, a support ring, a support plate, a heat insulation column, a heat insulation ring sheet, a liner support ring and a support ring semi-concave circle, wherein the support sleeve is in a flat cylindrical shape in the vertical direction, the lower end part of the cylindrical support sleeve is fixedly welded with the annular support ring, the inner side surface of the support sleeve is circumferentially divided into six parts and is respectively processed with the support sleeve semi-concave circle, the outer side surface of the support sleeve is circumferentially divided into three parts and is respectively and fixedly welded with the support plate, the support plate is arranged in a flat plate strip shape in the vertical direction, the shape of the outer side edge of the support plate in the circumferential direction is respectively identical to the shape of the radial cross section of the shell; the support ring on the inner side of the bottom of the support sleeve is sleeved with a heat insulation ring piece, semicircular bulges of the ring piece are respectively processed on the outer side surface of the heat insulation ring piece in six equal parts in the circumferential direction, and the semicircular bulges of the ring piece are respectively sleeved in the semicircular concave circle of the support sleeve;
the inner container support ring with the vertical direction being flat and cylindrical is sleeved in the support sleeve, the outer diameter of the inner container support ring is smaller than the inner diameter of the support sleeve by 5 mm, the upper end part of the inner container support ring is fixedly welded at the central part of the lower end of the inner container seal head, the lower end part of the inner container support ring is spliced on the heat insulation ring piece in a plug-in manner, and the outer side surface of the inner container support ring is circumferentially divided into six equal parts and is respectively processed with equal-diameter support ring semi-concave circles corresponding to the support sleeve semi-concave circles: the support sleeve semi-concave circle and the support ring semi-concave circle are respectively sleeved with a heat insulation column in a round hole formed in the vertical direction, the heat insulation columns are arranged in a cylindrical mode, the lower end portions of the heat insulation columns are respectively inserted and overlapped on the heat insulation ring pieces, the upper end portions of the heat insulation columns are respectively in the same shape as the inner container end socket radial cross section elliptical end sockets at the supporting positions, the upper ends of the heat insulation columns are respectively fixedly supported on the inner container end sockets, and a 5 mm gap is formed between the upper end portions of the support sleeves and the inner container end sockets. An insulating layer is arranged between the inner container and the shell.
The utility model has the advantages that: because the bearing structure at the lower end of the inner container and the bearing structure connected by the hanging belt pull rod between the shell and the inner container form a composite bearing structure, the inner container and the loading weight thereof are transmitted to the shell sealing head through the composite bearing structure between the shell sealing head and the inner container, and the weight of the jacket heat-insulating layer between the shell and the inner container acts on the ground through the shell sealing head, the supporting leg base plate and the supporting leg, the barrel part of the shell only receives the acting force of self weight and external pressure and does not bear the inner container and the loading weight thereof; on the basis of the bearing mode of the existing hanging strip pull rod, the problem that the application range of the hanging strip pull rod is limited in the prior art is solved, the strength requirement of bearing of the shell is met, and therefore the design light weight of the whole shell is achieved.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the bearing structure of the lower end of the liner with the shell seal removed from the direction A of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure B-B of FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure C-C of FIG. 3;
fig. 5 is a schematic view of the heat-insulating ring of the present invention.
In the figure: 1 upper liner backing plate, 2 end socket inner backing plates, 3 brace pull rods, 4 upper shell supports, 5 liner end sockets, 6 liner lower end bearing structures, 61 supporting sleeves, 611 supporting sleeve semi-concave circles, 612 supporting rings, 62 supporting plate supporting plates, 63 supporting plates, 64 heat insulation columns, 65 heat insulation ring sheets, 651 ring sheet semi-convex circles, 66 liner supporting rings, 661 supporting ring semi-concave circles, 7 shells, 8 liners, 9 vacuum heat insulation layers, 10 shell end sockets, 11 supporting legs, 12 supporting leg backing plates, 13 circumferential upper supporting seats, 14 circumferential supports, 15 lower shell supports, 16 lower liner backing plates and 17 circumferential lower supporting seats.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
As shown in fig. 1-5, it includes the outer shell 7 and the inner container 8 set in the outer shell 7, the fixed welding of the circumference trisection on the inner wall of the upper portion of the outer shell 7 has the upper outer shell support 4, the fixed welding has the lower outer shell support 15 on the inner wall of the outer shell below the upper outer shell support 4, the welding has the upper inner container backing plate 1 and the lower inner container backing plate 16 on the outer wall of the inner container, the upper inner container backing plate 1 is connected with the upper outer shell support 4 by the brace pull rod 3, the two ends of the brace pull rod 3 are respectively fixed welded with the upper inner container backing plate 1 and the upper outer shell support 4 firmly, the lower inner container backing plate 16 is connected with the lower outer shell support 15 by the brace pull rod, the two ends of the brace are respectively fixed welded with the lower inner container backing plate and the lower outer shell support firmly, the fixed welding of the circumference trisection on the inner wall of the outer shell 7, the circumferential upper supporting seat and the upper shell support are arranged on the inner wall of the shell at intervals, and the circumferential upper supporting seat and the upper shell support are on the same horizontal line; a circumferential lower supporting seat 17 is fixedly welded on the lower part of the inner wall of the shell 7 in a circumferential trisection manner, a circumferential support 14 for heat insulation is sleeved on the circumferential lower supporting seat 17, the circumferential lower supporting seat and the lower shell support are arranged on the inner wall of the shell at intervals, and the circumferential lower supporting seat and the lower shell support are on the same horizontal line;
the lower end of the liner end socket 5 of the liner is fixedly welded with a liner lower end bearing structure 6, the shell 7 and the liner 8 are connected in the vertical direction through a hanging strip pull rod 3 and the liner lower end bearing structure 6, the shell 7 and the liner 8 are connected in the circumferential direction through a circumferential support 13, the lower side surface of the shell end socket 10 of the shell is circumferentially trisected and is respectively and fixedly welded with supporting legs 11, and supporting leg base plates 12 are respectively and fixedly welded between the shell end socket 10 and the supporting legs 11;
the liner lower end bearing structure 6 comprises a support sleeve 61, a support sleeve semi-concave circle 611, a support ring 612, a support plate 62, a support plate 63, a heat insulation column 64, a heat insulation ring sheet 65, a liner support ring 66 and a support ring semi-concave circle 661, wherein the support sleeve 61 is in a flat cylindrical shape in the vertical direction, the lower end part of the cylindrical support sleeve is fixedly welded with the annular support ring 612, the inner side surface of the support sleeve 61 is circumferentially divided into six equal parts and is respectively processed with the support sleeve semi-concave circle 611, the outer side surface of the support sleeve 61 is circumferentially divided into three equal parts and is respectively fixedly welded with the support plate 63, the support plate 63 is arranged in a flat plate strip shape in the vertical direction, the circumferential outer side edges of the support plate 63 are respectively in the same shape as the radial cross section of the shell seal head 10 at the lap joint part; the supporting ring 612 on the inner side of the bottom of the supporting sleeve 61 is sleeved with a heat insulation ring 65, the outer side surface of the heat insulation ring 65 is circumferentially divided into six equal parts and is respectively provided with a ring semicircular bulge 651, and the ring semicircular bulges 651 are respectively sleeved in the supporting sleeve semicircular concave circle 611;
the liner supporting ring 66 which is flat and cylindrical in the vertical direction is sleeved in the supporting sleeve 61, the outer diameter of the liner supporting ring 66 is smaller than the inner diameter of the supporting sleeve 61 by 5 mm, the upper end part of the liner supporting ring 66 is fixedly welded at the central part of the lower end of the liner sealing head 5, the lower end part of the liner supporting ring is spliced on the heat insulation ring sheet 65 in a splicing way, and a uniform-diameter supporting ring semi-concave circle 661 corresponding to the supporting sleeve semi-concave circle 611 is respectively processed in a circumferential six-equal way on the outer side surface of the liner supporting ring 66, wherein: the supporting sleeve semi-concave circle 611 and the supporting ring semi-concave circle 661 are vertically formed circular holes in which the heat insulation columns 64 are respectively sleeved, the heat insulation columns 64 are arranged in a cylindrical shape, the lower ends of the heat insulation columns are respectively inserted and overlapped on the heat insulation ring sheets 65, the upper ends of the heat insulation columns are respectively in the same shape as the elliptical end sockets of the radial cross section of the liner end socket 5 at the supporting position, the upper ends of the heat insulation columns are respectively and fixedly supported on the liner end socket 5, and a 5 mm gap is formed between the upper end of the supporting sleeve 61 and the liner end socket 5. An insulating layer 9 is arranged between the inner container and the outer shell.
The utility model discloses a bearing structure includes two parts:
firstly, the shell and the liner are connected with a shell support through a liner base plate on the outer wall of the liner by using sling pull rods, the sling pull rods are uniformly distributed to transfer the liner and the loading weight thereof to the middle part of the shell, and the weight of a heat insulation layer between the shell and the liner acts on the ground through a shell seal head of the shell, a support leg base plate and support legs;
secondly, the inner container and the loading weight thereof are transferred to the shell end enclosure through the bearing structure at the lower end of the inner container between the shell end enclosure and the inner container, and the weight of the heat-insulating layer between the shell and the inner container acts on the ground through the shell end enclosure, the supporting leg base plate and the supporting legs.
The inner container and the loading weight thereof act on the shell sealing head of the shell through the sling pull rod and the bearing structure at the lower end of the inner container respectively, and the barrel body part of the shell only bears the acting force of self weight and external pressure but does not bear the inner container and the loading weight thereof; the inner bag backing plate that sets up outside the inner bag, the shell inboard sets up the shell support, and shell head downside sets up the landing leg backing plate for can effectual diffusion at suspender pull rod and inner bag lower extreme bearing structure's local region's stress concentration, reduce the improvement design strength requirement that stress concentration leads to comparatively effectively, thereby make whole shell design lightweight to realize.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (1)
1. The utility model provides a cryogenic liquids storage tank with novel bearing structure, includes shell (7) and inner bag (8) of setting in shell (7), characterized by: an upper shell support (4) is fixedly welded on the inner wall of the upper part of the shell (7) in a circumferential trisection manner, a lower shell support (15) is fixedly welded on the inner wall of the shell below the upper shell support (4), an upper liner base plate (1) and a lower liner base plate (16) are welded on the outer wall of the liner, the upper liner base plate (1) is connected with the upper shell support (4) through a sling pull rod (3), two ends of the sling pull rod (3) are fixedly welded with the upper liner base plate (1) and the upper shell support (4) respectively, the lower liner base plate (16) is also connected with the lower shell support (15) through the sling pull rod, two ends of the sling are fixedly welded with the lower liner base plate and the lower shell support respectively, a circumferential upper support (13) is fixedly welded on the upper part of the inner wall of the shell (7) in a circumferential trisection manner, a circumferential support (14) for heat insulation is sleeved on the circumferential, the circumferential upper supporting seat and the upper shell support are arranged on the inner wall of the shell at intervals; circumferential lower supporting seats (17) are fixedly welded on the lower portion of the inner wall of the shell in a circumferentially trisected manner, circumferential supports for heat insulation are sleeved on the circumferential lower supporting seats, and the circumferential lower supporting seats and the lower shell supporting seats are arranged on the inner wall of the shell at intervals;
the lower end of the liner seal head (5) of the liner is fixedly welded with a liner lower end bearing structure (6), the shell and the liner are connected in the vertical direction through a hanging strip pull rod and the liner lower end bearing structure, the shell and the liner are circumferentially supported and connected, and the lower surface of the shell seal head (10) of the shell is welded with a support leg (11);
the liner lower end bearing structure (6) consists of a support sleeve (61), a support sleeve semi-concave circle (611), a support ring (612), a support plate (62), a support plate (63), a heat insulation column (64), a heat insulation ring sheet (65), a liner support ring (66) and a support ring semi-concave circle (661), wherein the support sleeve (61) is in a flat cylindrical shape in the vertical direction, the lower end part of the flat cylindrical support sleeve is fixedly welded with the annular support ring (612), the inner side surface of the support sleeve (61) is circumferentially divided into six equal parts and is respectively processed with the support sleeve semi-concave circle (611), the outer side surface of the support sleeve is circumferentially divided into three equal parts and is respectively fixedly welded with the support plate (63), the support plates are arranged in a flat plate strip shape in the vertical direction, and the outer; the supporting ring on the inner side of the bottom of the supporting sleeve is sleeved with a heat insulation ring piece (65), the outer side surface of the heat insulation ring piece is circumferentially divided into six equal parts and is respectively processed with a semicircular bulge (651) of the ring piece, and the semicircular bulge (651) of the ring piece is respectively sleeved in the semi-concave circle (611) of the supporting sleeve;
the inner container support ring (66) which is flat and cylindrical in the vertical direction is installed in the support sleeve, the upper end part of the inner container support ring is fixedly welded at the center part of the lower end of the inner container seal head (5), the lower end part of the inner container support ring is lapped on a heat insulation ring piece, and an equal-diameter support ring semi-concave circle (661) corresponding to the support sleeve semi-concave circle (611) is respectively processed in six equal parts in the circumferential direction on the outer side surface of the inner container support ring, wherein: the supporting sleeve semi-concave circle (611) and the supporting ring semi-concave circle (661) are vertically formed round holes which are respectively sleeved with a heat insulation column (64), the lower end parts of the heat insulation columns are respectively inserted and lapped on the heat insulation ring pieces, and the upper ends of the heat insulation columns are respectively and fixedly supported on the liner sealing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920946172.6U CN210319381U (en) | 2019-06-23 | 2019-06-23 | Low-temperature liquid storage tank with novel bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920946172.6U CN210319381U (en) | 2019-06-23 | 2019-06-23 | Low-temperature liquid storage tank with novel bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210319381U true CN210319381U (en) | 2020-04-14 |
Family
ID=70145666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920946172.6U Withdrawn - After Issue CN210319381U (en) | 2019-06-23 | 2019-06-23 | Low-temperature liquid storage tank with novel bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210319381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207001A (en) * | 2019-06-23 | 2019-09-06 | 大连东建风电设备制造有限公司 | A kind of cryogenic liquid storage tank with novel load-bearing structures |
-
2019
- 2019-06-23 CN CN201920946172.6U patent/CN210319381U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207001A (en) * | 2019-06-23 | 2019-09-06 | 大连东建风电设备制造有限公司 | A kind of cryogenic liquid storage tank with novel load-bearing structures |
| CN110207001B (en) * | 2019-06-23 | 2024-01-30 | 大连东建风电设备制造有限公司 | Low-temperature liquid storage tank with bearing structure |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20240130 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20240130 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |