CN214567917U - Double-layer spherical tank - Google Patents
Double-layer spherical tank Download PDFInfo
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- CN214567917U CN214567917U CN202120827921.0U CN202120827921U CN214567917U CN 214567917 U CN214567917 U CN 214567917U CN 202120827921 U CN202120827921 U CN 202120827921U CN 214567917 U CN214567917 U CN 214567917U
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- spherical tank
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- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000011229 interlayer Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011810 insulating material Substances 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a double-deck spherical tank. The double-layer spherical tank comprises an outer spherical tank, an inner spherical tank positioned in the outer spherical tank and a supporting piece supported between the inner spherical tank and the outer spherical tank, wherein a gap is formed between the inner spherical tank and the outer spherical tank to form an interlayer space; the center of the inner spherical tank is higher than that of the outer spherical tank; the supporting piece is positioned in the interlayer space; the support piece includes a plurality of suspender that set up along the circumference interval of interior spherical tank, and the top of each suspender is connected with the internal perisporium of outer spherical tank, and the bottom is connected with the periphery wall of interior spherical tank. This double-deck spherical tank sets up the centre of sphere through with interior spherical tank to be higher than the centre of sphere of outer spherical tank, eccentric structure promptly for bottom intermediate layer space between interior spherical tank bottom and the outer spherical tank bottom is great, thereby conveniently is located the installation of the pipeline in bottom intermediate layer space promptly, satisfies the atmoseal requirement of liquid phase pipeline again. Compared with the related art, the double-layer spherical tank in the embodiment does not increase the volume of the outer spherical tank, so that the material used by the outer spherical tank is reduced, and the cost is further saved.
Description
Technical Field
The utility model relates to a storage tank field, in particular to double-deck spherical tank.
Background
The double-layer spherical tank is mainly used for storing a low-temperature liquid medium and is a key device of a low-temperature system. Under the industrial policy of environmental protection and energy conservation vigorously advocated by the state, the double-layer spherical tank is widely accepted in the low-temperature liquid storage and transportation equipment market, and has huge development space.
At present, a high-vacuum heat-insulation double-layer spherical tank mainly comprises an inner spherical tank, an outer spherical tank, a supporting structure and other components, and the spherical centers of the inner spherical tank and the outer spherical tank are in the same point, namely the concentric structure. The liquid phase pipeline led out from the bottom of the inner spherical tank needs to consider the air seal structure during design, and generally requires larger interlayer space between the inner spherical tank and the outer spherical tank in consideration of the installation of the inner spherical tank and the outer spherical tank on site. The increase of the interlayer space not only increases the consumption of the material of the outer spherical tank, but also prolongs the time of interlayer vacuumizing, so that the manufacturing cost and the period of the vacuum double-layer spherical tank are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a great and lower double-deck spherical tank of manufacturing cost of bottom intermediate layer space to solve the problem among the prior art.
In order to solve the technical problem, the utility model provides a double-layer spherical tank, which comprises an outer spherical tank, an inner spherical tank positioned in the outer spherical tank and a support piece supported between the inner spherical tank and the outer spherical tank, wherein a gap is formed between the inner spherical tank and the outer spherical tank to form an interlayer space;
the center of the inner spherical tank is higher than that of the outer spherical tank;
the support member is positioned in the interlayer space; the support piece comprises a plurality of hanging strips arranged along the circumferential direction of the inner spherical tank at intervals, the top end of each hanging strip is connected with the inner circumferential wall of the outer spherical tank, and the bottom end of each hanging strip is connected with the outer circumferential wall of the inner spherical tank.
In one embodiment, a line connecting the center of the inner spherical tank and the center of the outer spherical tank extends in a vertical direction.
In one embodiment, the strap is inclined.
In one embodiment, a plurality of the straps are uniformly arranged along the circumferential direction of the inner spherical tank.
In one embodiment, the material of the sling is austenitic stainless steel.
In one embodiment, a plurality of upright posts are arranged at intervals along the circumferential direction of the outer spherical tank;
the top of each upright post is fixedly connected with the outer peripheral wall of the outer spherical tank, and the bottom of each upright post is used for being connected with a foundation.
In one embodiment, a plurality of the hanging strips are arranged corresponding to a plurality of the upright posts.
In one embodiment, a diagonal bracing assembly is further arranged between any two adjacent upright columns; each inclined strut assembly comprises two symmetrical inclined struts, and two ends of each inclined strut are respectively connected with the top of one stand column and the bottom of the other stand column.
In one embodiment, the material of the upright post is low alloy steel or carbon steel.
In one embodiment, the outer periphery of the inner spherical tank is coated with a heat insulating material; the heat insulating material is made of high vacuum heat insulating quilt or expanded perlite.
According to the above technical scheme, the utility model discloses an advantage lies in with positive effect:
the utility model provides a double-deck spherical tank sets up the centre of sphere that is higher than outer spherical tank through the centre of sphere with interior spherical tank into, makes the centre of sphere of interior spherical tank and outer spherical tank not coincide, eccentric structure promptly for bottom intermediate layer space between interior spherical tank bottom and the outer spherical tank bottom is great, thereby conveniently lies in the installation of the pipeline in bottom intermediate layer space promptly, satisfies the atmoseal requirement of liquid phase pipeline again. Compared with the related art, the double-layer spherical tank in the embodiment does not increase the volume of the outer spherical tank, so that the material used by the outer spherical tank is reduced, and the cost is further saved. And the volume of the whole interlayer space of the double-layer spherical tank is not increased, so that the vacuumizing time is not increased, and the manufacturing cost and the manufacturing period of the double-layer spherical tank are effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of one embodiment of the double-layer spherical tank of the present invention.
The reference numerals are explained below:
1. a foundation;
21. an inner spherical tank; 22. an outer spherical tank; 23. a thermally insulating material; 24. a sling; 25. a column; 26. bracing; 271. an external pipeline; 272. an internal pipeline; 28. a security accessory; 29. a ladder platform.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.
The utility model provides a double-deck spherical tank is applicable to cryogenic liquids such as storage liquid nitrogen, liquid oxygen, liquid argon, liquefied natural gas, liquid hydrogen.
The bottom intermediate layer space of double-deck spherical tank in this application is great, the installation of the pipeline etc. of the bottom of being convenient for, and the manufacturing cost of this double-deck spherical tank is lower, manufacturing cycle is shorter.
The double-layer spherical tank will be specifically described below.
Referring to fig. 1, the double-layer spherical tank is fixed on a foundation 1. The double-layer spherical tank comprises an inner spherical tank 21, an outer spherical tank 22, a heat insulating material 23, a support member, a plurality of columns 25 and a pipeline.
The inner spherical tank 21 is spherical and is used for containing cryogenic liquids such as liquid nitrogen, liquid oxygen, liquid argon, liquefied natural gas, liquid hydrogen and the like. Specifically, the inner spherical tank 21 is made of austenitic stainless steel and can resist the temperature of-196 ℃ or-253 ℃ or even lower. As shown in fig. 1, the central axis of the inner spherical tank 21 is L1, the center of the sphere is O1, the central axis L1 extends horizontally, and the center of the sphere O1 is located on the central axis L1.
The outer spherical tank 22 is spherical and wraps the inner spherical tank 21. An interlayer space is formed between the outer ball tank 22 and the inner ball tank 21, and a plurality of holes (not shown) are formed at the bottom of the outer ball tank 22.
Specifically, the outer spherical tank 22 is made of low alloy steel. The operating temperature of the outer spherical tank 22 is ambient temperature and the operating pressure is vacuum.
As shown in fig. 1, the central axis of the outer spherical tank 22 is L2, the center of the sphere is O2, the central axis L2 extends horizontally, and the center of the sphere O2 is located on the central axis L2.
The central axis L1 of the inner spherical tank 21 is parallel to the central axis L2 of the outer spherical tank 22, and the central axis L1 of the inner spherical tank 21 is higher than the central axis L2 of the outer spherical tank 22, that is, the spherical center O1 of the inner spherical tank 21 is higher than the spherical center O2 of the outer spherical tank 22, so that the double-layer spherical tank has an eccentric structure.
Further, a line connecting the center O1 of the inner canister 21 and the center O2 of the outer canister 22 extends in the vertical direction such that the center O1 of the inner canister 21 is located directly above the center O2 of the outer canister 22.
An interlayer space is formed between the inner wall of the outer spherical tank 22 and the outer wall of the inner spherical tank 21. The sandwiched space includes an upper sandwiched space located above the central axis L1 of the inner spherical tank 21 and a lower sandwiched space located below the central axis L1 of the inner spherical tank 21. Because the central axis L1 of the inner spherical tank 21 is higher than the central axis L2 of the outer spherical tank 22, the lower interlayer space is larger than the upper interlayer space, which not only facilitates the arrangement of pipelines, but also meets the air seal requirement of liquid phase pipelines. Compared with the related art, the double-layer spherical tank in the embodiment does not increase the volume of the outer spherical tank 22, so that the material used by the outer spherical tank 22 is reduced, and the cost is saved. Meanwhile, the volume of the whole interlayer space of the double-layer spherical tank is not increased, so that the vacuumizing time is not increased, and the manufacturing cost and the manufacturing period of the double-layer spherical tank are effectively reduced.
Illustratively, when the maximum outer diameter of the pipeline located in the bottom interlayer space is 200mm, the center O1 of the inner ball pot 21 in the related art is set at least 100mm higher than the center O2 of the outer ball pot 22, and the installation of the pipeline located in the bottom interlayer space can be achieved without changing the sizes of the inner ball pot 21 and the outer ball pot 22. After the interlayer space at the bottom is increased, the construction on site is facilitated.
In other embodiments, the distance between the center O1 of the inner spherical tank 21 and the center O2 of the outer spherical tank 22 may be specifically set according to the sizes of the inner spherical tank 21 and the outer spherical tank 22 and the size of the pipeline at the bottom.
The support member is located in the interlayer space. Specifically, the support member includes a plurality of straps 24, and the plurality of straps 24 are provided at intervals along the circumference of the inner canister 21.
The top of each sling 24 is fixedly connected with the inner peripheral wall of the outer spherical tank 22, the bottom of each sling 24 is fixedly connected with the outer peripheral wall of the inner spherical tank 21, and the slings 24 are obliquely arranged. The straps 24 work together to support the inner canister 21 within the outer canister 22 and to transfer the weight of the inner canister 21 and the medium contained within the inner canister 21, etc., to the outer canister 22.
The sling 24 is made of austenitic stainless steel and can resist the temperature of 196 ℃ below zero or 253 ℃ below zero or even lower.
A plurality of pillars 25 are provided at intervals along the circumferential direction of the outer spherical tank 22 to support the outer spherical tank 22.
Further, a plurality of pillars 25 are uniformly arranged in the circumferential direction of the outer spherical tank 22.
In the present embodiment, the plurality of columns 25 and the plurality of harnesses 24 are provided in one-to-one correspondence. That is, the number of the uprights 25 corresponds to the number of the straps 24, and the straps 24 correspond to the positions of the uprights 25 in the circumferential direction of the outer cup 22. In other embodiments, the number of the upright posts 25 and the straps 24 can be set according to actual conditions.
The bottom of each upright post 25 is fixedly connected with the foundation 1, and the top of each upright post 25 is fixedly connected with the outer wall of the outer spherical tank 22. A plurality of uprights 25 cooperate to support the outer spherical tank 22.
Specifically, the bottom of each upright column 25 is fixedly connected with the foundation 1 through an anchor bolt, and the top of each upright column 25 is connected with the outer spherical tank 22 in a welding manner.
The upright column 25 is made of low alloy steel or carbon steel, and the working temperature is ambient temperature.
Further, an inclined strut 26 assembly is connected between any two adjacent upright columns 25, so that the upright columns 25 are connected into a whole, more stable support is provided, and the double-layer spherical tank has better stability.
Each inclined strut 26 assembly comprises two inclined struts 26 which are symmetrically arranged, and two ends of each inclined strut 26 are respectively connected with the top of one upright 25 and the bottom of the other upright 25.
The heat insulating material 23 is positioned in the interlayer space and wraps the periphery of the inner spherical tank 21. The heat insulating material 23 can be determined according to the static evaporation rate index requirement of the double-layer spherical tank, for example, for rare cryogenic media such as liquid hydrogen, a high vacuum heat insulating type is generally selected, namely a high vacuum heat insulating cover. The other cryogenic medium is typically expanded perlite.
The external pipe 271 and the internal pipe 272 are used for the functions of conveying and filling the medium in the inner spherical tank 21. The inner pipeline is positioned in the interlayer space and is communicated with the interior of the inner spherical tank 21. Specifically, the inner conduit communicates with the top of the inner spherical tank 21.
The external pipe 271 communicates with the internal pipe 272 and extends outside the outer canister 22 through the outer canister 22.
The safety attachment 28 includes a safety line communicating with the gas phase space of the inner spherical tank 21 through the outer spherical tank 22 and the inner spherical tank 21, and a safety valve connected to the safety line and provided outside the outer spherical tank 22. When the pressure in the inner spherical tank 21 exceeds the working pressure and reaches the opening pressure of the safety valve, the safety valve automatically opens to release gas in the tank, and the safety valve automatically closes until the pressure in the tank is lower than the opening pressure, so that the safety of the inner spherical tank 21 is protected, and the overpressure operation of the safety valve is avoided.
The outside of the outer spherical tank 22 is also provided with a ladder platform 29 which is convenient for personnel to operate and maintain. The bottom end of the ladder platform 29 is connected with the foundation 1, and the top end is vertically connected with the outer spherical tank 22.
In addition, for the convenience of people and materials, an outer spherical tank 22 manhole is arranged at the top of the outer spherical tank 22, and an inner spherical tank 21 process manhole is arranged at the top of the inner spherical tank 21.
In other embodiments, it is also possible to make the connection line between the center O1 of the inner ball pot 21 and the center O2 of the outer ball pot 22 extend in the horizontal direction with a space between the center O1 of the inner ball pot 21 and the center O2 of the outer ball pot 22. The center O1 of the inner ball pot 21 is located at the left or right side of the center O2 of the outer ball pot 22.
In yet another embodiment, the center O1 of the inner spherical tank 21 may be located obliquely above the center O2 of the outer spherical tank 22.
According to the above technical scheme, the utility model discloses an advantage lies in with positive effect:
the utility model provides a double-deck spherical tank sets up the centre of sphere that is higher than outer spherical tank through the centre of sphere with interior spherical tank into, makes the centre of sphere of interior spherical tank and outer spherical tank not coincide, eccentric structure promptly for bottom intermediate layer space between interior spherical tank bottom and the outer spherical tank bottom is great, thereby conveniently lies in the installation of the pipeline in bottom intermediate layer space promptly, satisfies the atmoseal requirement of liquid phase pipeline again. Compared with the related art, the double-layer spherical tank in the embodiment does not increase the volume of the outer spherical tank, so that the material used by the outer spherical tank is reduced, and the cost is saved. And the volume of the whole interlayer space of the double-layer spherical tank is not increased, so that the vacuumizing time is not increased, and the manufacturing cost and the manufacturing period of the double-layer spherical tank are effectively reduced.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A double-layer spherical tank is characterized by comprising an outer spherical tank, an inner spherical tank positioned in the outer spherical tank and a support piece supported between the inner spherical tank and the outer spherical tank, wherein a gap is formed between the inner spherical tank and the outer spherical tank to form an interlayer space;
the center of the inner spherical tank is higher than that of the outer spherical tank;
the support member is positioned in the interlayer space; the support piece comprises a plurality of hanging strips arranged along the circumferential direction of the inner spherical tank at intervals, the top end of each hanging strip is connected with the inner circumferential wall of the outer spherical tank, and the bottom end of each hanging strip is connected with the outer circumferential wall of the inner spherical tank.
2. The double-deck spherical tank according to claim 1, wherein a line connecting a center of the inner spherical tank and a center of the outer spherical tank extends in a vertical direction.
3. The double-deck spherical tank of claim 2, wherein said straps are disposed at an incline.
4. The bi-level canister of claim 2, wherein a plurality of said straps are evenly arranged along a circumference of said inner canister.
5. The double-layer spherical tank as claimed in claim 1, wherein the material of the sling is austenitic stainless steel.
6. The double-layer spherical tank according to claim 1, wherein a plurality of columns are arranged at intervals along the circumferential direction of the outer spherical tank;
the top of each upright post is fixedly connected with the outer peripheral wall of the outer spherical tank, and the bottom of each upright post is used for being connected with a foundation.
7. The double-deck spherical tank as recited in claim 6, wherein a plurality of said braces are provided corresponding to a plurality of said uprights.
8. The double-layer spherical tank as claimed in claim 6, wherein a diagonal bracing component is arranged between any two adjacent upright columns; each inclined strut assembly comprises two symmetrical inclined struts, and two ends of each inclined strut are respectively connected with the top of one stand column and the bottom of the other stand column.
9. The double-layer spherical tank according to claim 6, wherein the upright is made of low alloy steel or carbon steel.
10. The double-layer spherical tank according to claim 1, wherein the outer circumference of the inner spherical tank is coated with a heat insulating material; the heat insulating material is made of high vacuum heat insulating quilt or expanded perlite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120827921.0U CN214567917U (en) | 2021-04-21 | 2021-04-21 | Double-layer spherical tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120827921.0U CN214567917U (en) | 2021-04-21 | 2021-04-21 | Double-layer spherical tank |
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| Publication Number | Publication Date |
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| CN214567917U true CN214567917U (en) | 2021-11-02 |
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| CN202120827921.0U Active CN214567917U (en) | 2021-04-21 | 2021-04-21 | Double-layer spherical tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383036A (en) * | 2021-11-26 | 2022-04-22 | 华陆工程科技有限责任公司 | Double-layer spherical tank system for storing cryogenic medium |
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2021
- 2021-04-21 CN CN202120827921.0U patent/CN214567917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383036A (en) * | 2021-11-26 | 2022-04-22 | 华陆工程科技有限责任公司 | Double-layer spherical tank system for storing cryogenic medium |
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