CN220727908U - Underground normal-temperature storage tank and low-temperature storage tank - Google Patents
Underground normal-temperature storage tank and low-temperature storage tank Download PDFInfo
- Publication number
- CN220727908U CN220727908U CN202322183661.XU CN202322183661U CN220727908U CN 220727908 U CN220727908 U CN 220727908U CN 202322183661 U CN202322183661 U CN 202322183661U CN 220727908 U CN220727908 U CN 220727908U
- Authority
- CN
- China
- Prior art keywords
- tank
- storage tank
- underground
- tank body
- heat insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000012774 insulation material Substances 0.000 claims abstract description 8
- 239000012263 liquid product Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 abstract description 16
- 239000003949 liquefied natural gas Substances 0.000 abstract description 14
- 239000003915 liquefied petroleum gas Substances 0.000 abstract description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 7
- 239000005977 Ethylene Substances 0.000 abstract description 7
- 239000010779 crude oil Substances 0.000 abstract description 6
- 239000003921 oil Substances 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses an underground normal-temperature storage tank and a low-temperature storage tank, wherein the underground low-temperature storage tank comprises an outer tank body, an inner suspended ceiling and a tank top, wherein the outer tank body is arranged in a pit base and used for containing heat insulation materials, the inner tank body is arranged at the inner side of the outer tank body and used for containing liquid products, the inner suspended ceiling is arranged at the top of the inner tank body and used for heat insulation, and the tank top is arranged at the upper part of the inner suspended ceiling and used for sealing the outer tank body. The utility model is suitable for underground low-temperature storage of Liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene and liquid ammonia and underground normal-temperature storage of crude oil, product oil and the like, and compared with a storage tank on the ground, the safety and the concealment of the underground storage tank are improved, the storage tank is less influenced by earthquake load and wind load, the safety interval of the storage tank is reduced, and the occupied area is reduced.
Description
Technical Field
The utility model relates to the technical field of storage, in particular to an underground normal-temperature storage tank and a low-temperature storage tank for petroleum, chemical and natural gas products.
Background
With the vigorous development of national economy, the requirements of petroleum, chemical industry and natural gas products are increased, related industries are developed rapidly, and product storage is an important link in petroleum, chemical industry and natural gas industry, wherein products such as crude oil, product oil, liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene and liquid ammonia are large in storage amount and high in danger.
At present, products stored at normal temperature and normal pressure such as crude oil, product oil and the like and products stored at low temperature and normal pressure such as Liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene, liquid ammonia and the like are stored by adopting a ground vertical cylinder flat bottom storage tank, so that the method has better economical efficiency, relatively lower construction period and construction cost, but worse safety, larger required safety interval, larger occupied area and higher geological condition requirement.
The availability of land recovery or access to land is very expensive and difficult, and when an abnormally high safety standard requirement is imposed by the close proximity to densely populated urban areas, adjacent industrial areas or high risk locations, there are also areas of relatively complex geological conditions, where areas of intense earthquakes or areas involving backfill are involved, such as crude oil, product oil, liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene, liquid ammonia, etc. petroleum, chemical, natural gas products would become more viable for underground storage. It is therefore even more important to provide an underground cryogenic storage tank for Liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene, liquid ammonia.
Disclosure of Invention
An object of the present utility model is to provide an underground normal temperature storage tank and a low temperature storage tank.
The underground normal-temperature storage tank comprises an outer tank body and a tank top, wherein the outer tank body is arranged in a pit base and is used for containing heat insulation materials, and the tank top is arranged at the top of the outer tank body and is used for sealing the outer tank body;
an annular space is formed between the outer tank body and the outer tank body; a rain shield is disposed on top of the annular space.
The underground low-temperature storage tank comprises an outer tank body, an inner suspended ceiling and a tank top, wherein the outer tank body is arranged in a pit base and used for containing heat insulation materials, the inner tank body is arranged at the inner side of the outer tank body and used for containing liquid products, the inner suspended ceiling is arranged at the top of the inner tank body and used for heat insulation, and the tank top is arranged at the upper part of the inner suspended ceiling and used for sealing the outer tank body.
On the basis of the scheme, the method further comprises the following steps: and the heat insulation bottom plate is arranged at the bottom of the outer tank body and used for heat insulation.
On the basis of the scheme, the method further comprises the following steps: and the thermal angle protection structure is arranged at the included angle between the outer tank body and the heat insulation bottom plate.
On the basis of the scheme, the method further comprises the following steps: and the heating structure is arranged at the bottom of the heat insulation bottom plate.
On the basis of the scheme, the underground low-temperature storage tanks are arranged in a pit tank mode, a semi-underground storage tank mode or a full-underground storage tank mode according to the relative positions on the terrace.
The beneficial effects of the utility model are as follows: the underground low-temperature storage tank comprises an outer tank body with liquid tightness and air tightness and an inner tank body built in the outer tank body and a pit base integrally placed; the outer tank body is of an open structure, no product evaporation gas is stored, the inner tank body is of a closed structure of an independent self-supporting vault (inner suspended ceiling), and under the normal operation condition of the storage tank: the outer tank body is used as a main evaporation gas container of the storage tank and is filled with heat insulation materials, and under the condition that the inner tank body leaks: all liquid products are contained, the structural air tightness is kept, the safe and orderly discharge of the evaporated gas can be ensured, and the tank wall of the outer tank body is not directly connected with a pit base soil layer; the underground normal-temperature storage tank comprises an outer tank body arranged in the pit base and used for containing heat insulation materials, and a tank top arranged at the top of the outer tank body and used for sealing the outer tank body; an annular space is formed between the outer tank body and the outer tank body; a rain shield is disposed on top of the annular space. Petroleum, chemical and natural gas products such as Liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene, liquid ammonia, etc. are stored at low temperatures under the ground, and crude oil, product oil, etc. are stored at normal temperatures under the ground, which is more feasible.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of an underground cryogenic tank (in-pit tank) according to the present utility model;
FIG. 2 is a schematic diagram of an underground cryogenic tank (semi-underground tank) according to the present utility model;
FIG. 3 is a schematic view of the structure of an underground cryogenic tank (an all-underground tank) according to the present utility model;
FIG. 4 is a schematic diagram of the structure of an underground normal temperature storage tank (in-pit tank) according to the present utility model;
FIG. 5 is a schematic diagram of an underground normal temperature storage tank (semi-underground storage tank) according to the present utility model;
fig. 6 is a schematic structural diagram of an underground normal-temperature storage tank (an all-underground storage tank) according to the present utility model.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Example 1
Referring to fig. 1, for storage of Liquefied Petroleum Gas (LPG), liquefied Natural Gas (LNG), ethylene, and liquid ammonia, an underground cryogenic storage tank is provided, which includes an outer tank 1 disposed in a pit base 8 for containing a heat insulating material, an inner tank 2 disposed inside the outer tank 1 for containing a liquid product, an inner suspended ceiling 3 (i.e., a self-supporting dome) disposed at the top of the inner tank 2 for heat insulation, and a tank top 4 disposed at the upper portion of the inner suspended ceiling 3 for closing the outer tank 1.
As a specific embodiment, the method further comprises: and a heat insulation bottom plate 5 arranged at the bottom of the outer tank body 1 and used for heat insulation.
As a specific embodiment, the method further comprises: and the thermal angle protection structure 6 is arranged at the included angle between the outer tank body 1 and the heat insulation bottom plate 5. The thermal angle protection structure 6 is used for isolating a low-temperature medium under the failure working condition of the inner tank body 2 and preventing the low-temperature medium from directly contacting with the outer tank body 1; when a large amount of leakage occurs, impact of low-temperature medium on the outer tank body 1 can also cause heat insulation bottom plate 5 at the bottom of the outer tank, and cooling capacity is transferred to the bearing platform to further cause bearing platform cracking.
As a specific embodiment, the method further comprises: and a heating structure 7 arranged at the bottom of the heat insulation bottom plate 5. The bottom heating system is arranged to prevent cold energy from being transferred to the foundation for aggregation, soil liquefaction, uneven settlement of the foundation and the like.
As a specific embodiment, an annular space is provided between the outer tank 1 and the pit base 8, and a rain cover 9 is provided on the top of the annular space. The low-temperature semi-underground storage tank is of a vertical cylinder flat bottom double-layer steel storage tank, the storage tank is placed in a pit foundation, a tank top 4 is located above a terrace, a tank body is located below the terrace, and an annular space between an outer tank body 1 and the pit foundation can be covered by a rain cover 9 to prevent rainwater, snow, dust and the like from entering.
The underground cryogenic storage tank can be composed of an outer tank body 1 with liquid tightness and air tightness and an inner tank body 2 built in the outer tank body 1 and integrally placed pit base 8. The outer tank body 1 is of an open structure, no product evaporation gas is stored, the inner tank body 2 is of a closed structure of an independent self-supporting vault (inner suspended ceiling 3), and under the normal operation condition of the storage tank: the outer tank 1 is used as a main evaporation gas container of the storage tank and contains heat insulation materials, and in the case of leakage of the inner tank 2: all liquid products are contained, the structural air tightness is kept, the safe and orderly discharge of the evaporated gas can be ensured, and the tank wall of the outer tank body 1 is not directly connected with a pit base soil layer.
According to the relative position between the container and the terrace, the arrangement mode of the underground low-temperature vertical cylinder flat bottom storage tank is divided into an in-pit tank, a semi-underground storage tank and an all-underground storage tank, wherein in the embodiment 1, the arrangement mode of the in-pit tank is specifically shown as follows:
as shown in fig. 2, the arrangement mode of the semi-underground storage tank is specifically as follows: the low-temperature pit inner tank is a vertical cylinder flat bottom double-layer steel storage tank, the tank is placed in a pit base, the tank top and the upper half part of the tank body are located above a terrace, the lower half part of the tank body is located below the terrace, and the pit is opened based on surrounding annular space.
As shown in fig. 3, the arrangement mode of the fully underground storage tank is specifically as follows: the low-temperature full-underground storage tank is structurally characterized in that the low-temperature full-underground storage tank is a vertical cylinder flat-bottom double-layer steel storage tank, the storage tank is placed in a pit base, the tank body is all located below a terrace, a soil covering layer is covered on the tank top, and a supporting and soil covering layer is also arranged on the top of an annular space around the pit base.
Example 2
As shown in fig. 4, for an underground normal temperature vertical cylinder flat bottom storage tank for crude oil, product oil and the like, the underground normal temperature storage tank comprises an outer tank body 1 arranged in a pit base 8 and used for containing heat insulation materials, and a tank top 4 arranged at the top of the outer tank body 1 and used for sealing the outer tank body 1;
an annular space is formed between the outer tank bodies 1 and 8; at the top of the annular space a rain shield 9 is provided.
Compared with a storage tank on the ground, the underground storage tank has the advantages that the safety and the concealment of the underground storage tank are improved, the storage tank is less influenced by earthquake load and wind load, the safety distance of the storage tank is reduced, and the occupied area is reduced.
According to the relative position between the container and the terrace, the underground normal temperature vertical cylinder flat bottom storage tank is divided into an inner tank, a semi-underground storage tank and a full-underground storage tank.
The normal-temperature pit inner tank is a vertical cylindrical flat-bottom steel storage tank, the storage tank is placed in a pit base 8, the tank top 4 and the upper half part of the outer tank body 1 are positioned above a terrace, the lower half part of the outer tank body 1 is positioned below the terrace, and the pit base 8 is opened based on a surrounding annular space, as shown in fig. 4; the normal-temperature semi-underground storage tank is in a vertical cylinder flat-bottom steel storage tank, the storage tank is placed in a pit foundation 8, a tank top 4 is located above a terrace, an outer tank body 1 is located below the terrace, and a rain cover 9 is arranged at the top of the pit based on a surrounding annular space, as shown in FIG. 5; the normal temperature full underground storage tank is a vertical cylinder flat bottom steel storage tank, the storage tank is placed in a pit base 8, the outer tank body 1 is all located below a terrace, a soil covering layer is covered on the tank top, and the pit base 8 is also provided with a supporting and soil covering layer based on the top of a surrounding annular space, as shown in fig. 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. Underground normal temperature storage tank, its characterized in that: comprises an outer tank body (1) which is arranged in a pit base (8) and is used for containing heat insulation materials, and a tank top (4) which is arranged at the top of the outer tank body (1) and is used for sealing the outer tank body (1);
an annular space is formed between the outer tank bodies (1) and (8); a rain cover (9) is arranged on the top of the annular space.
2. Underground low temperature storage tank, its characterized in that: the underground cryogenic storage tank of claim 1, further comprising: an inner tank body (2) arranged at the inner side of the outer tank body (1) and used for containing liquid products, and an inner suspended ceiling (3) arranged at the top of the inner tank body (2) and used for heat insulation;
the tank top (4) for closing the outer tank body (1) is arranged at the upper part of the inner suspended ceiling (3).
3. The underground cryogenic tank of claim 2, further comprising: and the heat insulation bottom plate (5) is arranged at the bottom of the outer tank body (1) and used for heat insulation.
4. A subterranean cryogenic storage tank according to claim 3, further comprising: and a thermal angle protection structure (6) arranged at the included angle between the outer tank body (1) and the heat insulation bottom plate (5).
5. A subterranean cryogenic storage tank according to claim 3, further comprising: and the heating structure (7) is arranged at the bottom of the heat insulation bottom plate (5).
6. The underground cryogenic tank of claim 2, wherein the underground cryogenic tank is arranged in an in-pit tank manner, a semi-underground tank manner, or a fully underground tank, depending on the relative position on the terrace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183661.XU CN220727908U (en) | 2023-08-14 | 2023-08-14 | Underground normal-temperature storage tank and low-temperature storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183661.XU CN220727908U (en) | 2023-08-14 | 2023-08-14 | Underground normal-temperature storage tank and low-temperature storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727908U true CN220727908U (en) | 2024-04-05 |
Family
ID=90503021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322183661.XU Active CN220727908U (en) | 2023-08-14 | 2023-08-14 | Underground normal-temperature storage tank and low-temperature storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727908U (en) |
-
2023
- 2023-08-14 CN CN202322183661.XU patent/CN220727908U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3330118A (en) | Sunken tank with floating cover for liquid gas storage | |
| Yang et al. | Development of the world’s largest above-ground full containment LNG storage tank | |
| CN109519697A (en) | A kind of underground LNG storage tank and its method of construction | |
| CN101298901B (en) | Separating explosion-proof skid-mounted type vehicle gasification device | |
| RU2232342C1 (en) | Underground liquefied natural gas storage tank | |
| RU2418728C2 (en) | Underground storage of liquified natural gas (lng ugs) | |
| CN220727908U (en) | Underground normal-temperature storage tank and low-temperature storage tank | |
| CN107795845B (en) | Three-layer metal wall full-containing storage tank | |
| RU2431770C1 (en) | Underground storage of liquefied natural gas | |
| CN114636097A (en) | Half ground earthing double-shell type liquid hydrocarbon low temperature storage system | |
| US4869033A (en) | Pressurized fluid storage tank | |
| CN109827067A (en) | A kind of Large LNG bimetallic full-capacity tank | |
| CN205991324U (en) | Three-layer metal wall contains storage tank entirely | |
| CN206369079U (en) | Metal full appearance tank | |
| CN209386004U (en) | A kind of underground LNG storage tank | |
| US20070140795A1 (en) | Liquid storage installation | |
| CN220957932U (en) | Horizontal double-layer vacuum powder heat-insulating earthing storage tank | |
| JPS6126720Y2 (en) | ||
| CN114636090A (en) | Earthing double-shell type liquid hydrocarbon low-temperature storage system | |
| US20230202828A1 (en) | Environmentally friendly multifuel fueling platform | |
| JPH0448400Y2 (en) | ||
| CN218468796U (en) | Liquid hydrogen underground storage system | |
| WO2023140213A1 (en) | Liquid hydrogen storage tank | |
| Chung et al. | Feasibility study of underground LNG storage system in rock cavern | |
| WO2023248480A1 (en) | Low-temperature liquefied gas storage tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |