CN216896771U - Low-temperature liquid storage tank with wave suppression function and inner tank thereof - Google Patents
Low-temperature liquid storage tank with wave suppression function and inner tank thereof Download PDFInfo
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- CN216896771U CN216896771U CN202123275393.1U CN202123275393U CN216896771U CN 216896771 U CN216896771 U CN 216896771U CN 202123275393 U CN202123275393 U CN 202123275393U CN 216896771 U CN216896771 U CN 216896771U
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- 239000007788 liquid Substances 0.000 title claims abstract description 68
- 230000001629 suppression Effects 0.000 title claims abstract description 54
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- 230000002401 inhibitory effect Effects 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000005428 wave function Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 238000012840 feeding operation Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
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- 229920000742 Cotton Polymers 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model provides a low-temperature liquid storage tank with a wave suppression function and an inner tank thereof, which are different from the prior art that the tank top of the inner tank is divided into a wave suppression top and a suspended ceiling, the annular wave suppression top connected with the tank wall of the inner tank is welded with the tank wall of the inner tank, and the low-temperature liquid storage tank has the functions of suppressing and guiding the surge towards the tank wall of the inner tank to fall back when liquid shakes caused by an earthquake and liquid rolls over during feeding operation; the furred ceiling hangs under outer tank deck, is located the annular and restrains in the middle of the inner tube on ripples top, links to each other by flexible seal structure between the furred ceiling and the inner tube on ripples top, and the diameter of furred ceiling is showing to be less than the inner tank diameter. The setting of wave suppression top can enough rock produced shock wave to liquid and carry out the drainage and dredge, restrain and reduce the wave height that rocks of liquid, can move the inner tube on wave suppression top from inner tank jar wall edge with the position of being connected between the furred ceiling of inner tank and the inner tank jar wall again, makes furred ceiling and flexible seal structure avoid rocking the impact of wave, protects them not impacted by the surge and damages.
Description
Technical Field
The utility model relates to a liquid storage container, in particular to a low-temperature liquid storage tank with a wave suppression function and an inner tank thereof.
Background
In the low-temperature liquefied gas storage and transportation system, a concrete full-containment low-temperature liquid storage tank and a bimetal full-containment low-temperature liquid storage tank are main large storage and transportation equipment, and inner tanks of the storage and transportation equipment are flat-bottom, vertical and cylindrical open storage tanks. The top of the inner tank is provided with a suspended ceiling, and the outer tank is a flat-bottom, vertical and cylindrical vault storage tank. The outer tank is made of concrete or metal and the inner tank is made of metal. Under normal operating conditions, the inner tank is in a low-temperature state, and the outer tank is in a normal-temperature state.
Under the earthquake working condition, the low-temperature liquid in the inner tank can generate great shaking, and the shaking liquid can impact the tank wall of the inner tank and the suspended ceiling. Because the inner tank suspended ceiling is a thin-wall component with weaker rigidity, and the joint of the inner tank wall and the suspended ceiling is a flexible sealing structure, the inner tank suspended ceiling is very easy to be damaged under the impact of liquid. The method adopted by the prior art is that a space which is larger than the shaking wave height during earthquake is reserved between the highest liquid level and the suspended ceiling so as to avoid the surge during shaking from touching the suspended ceiling and the flexible sealing structure. This space is not an effective operational volume of the cryogenic liquid storage tank and if measures are taken to reduce this space while ensuring safety, it will help to increase the safety of the cryogenic liquid storage tank during an earthquake and reduce the construction cost of the cryogenic liquid storage tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-temperature liquid storage tank with a wave suppression function and an inner tank thereof, which can suppress and reduce the height of liquid level shaking waves during an earthquake, solve the problem that a suspended ceiling and a flexible seal between the suspended ceiling and the wall of the inner tank in the prior art are easy to be damaged by impact, and can properly reduce the height of the wall of the inner tank and correspondingly reduce the height of the wall of an outer tank under the conditions of the same diameter and effective volume.
In order to solve the technical problems, the utility model adopts the following technical scheme and has at least the following advantages and positive effects:
the utility model provides an inner tank of cryogenic liquids storage tank with restrain ripples function, includes inner tank jar wall, inner tank bottoms, presses down ripples top, flexible seal structure and furred ceiling inner tank jar wall with set up the cyclic annular that has between the furred ceiling and pressed down ripples top with the guided wave function, press down ripples top with inner tank jar wall fixed connection, and should press down ripples top with connect through flexible seal structure between the furred ceiling.
In an embodiment, the wave inhibiting roof is an annular revolving body, and a generatrix of the wave inhibiting roof can be formed by combining at least two of an arc section, an inclined straight section, a horizontal section and a vertical section.
In some embodiments, the generatrix of the wave inhibiting top is any one of three structures, namely an arc section tangent to the inner tank wall, an arc section connected with the inner tank wall at an obtuse angle, and no arc section.
In some embodiments, a generatrix of the wave inhibiting top is any one of the following arc sections tangent to the inner tank wall:
the arc section, the inclined straight section and the vertical section are sequentially connected, the arc section is tangent to the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The arc section, the inclined straight section, the horizontal section and the vertical section are sequentially connected, the arc section is tangent to the wall of the inner tank, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or also or
The arc section, the horizontal section and the vertical section are sequentially connected, the arc section is tangent to the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure.
In some embodiments, a generatrix of the wave inhibiting top is a structure that any one of the following arc sections is connected with the inner tank wall at an obtuse angle:
the arc section and the vertical section are sequentially connected, the arc section is connected with the wall of the inner tank at an obtuse angle, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The arc section, the horizontal section and the vertical section are sequentially connected, the arc section is connected with the inner tank wall in an obtuse angle, and the vertical section is connected with the suspended ceiling through a flexible sealing structure.
In some embodiments, the generatrix of the wave inhibiting top is any one of the following structures without arc sections:
the inclined straight section and the vertical section are sequentially connected, the inclined straight section is connected with the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or alternatively
The inclined straight section, the horizontal section and the vertical section are sequentially connected, the inclined straight section is connected with the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The plurality of inclined straight sections and the vertical sections are sequentially connected, the inclined straight sections are connected with the inner tank wall, and the vertical sections are connected with the suspended ceiling through flexible sealing structures; or also or
A plurality of oblique straight sections, horizontal section, vertical section connect gradually, oblique straight section with inner tank jar wall links to each other, vertical section with connect through flexible seal structure between the furred ceiling.
In some embodiments, the wave inhibiting plate and/or the wave guide plate is fixedly arranged on the inner surface of the wave inhibiting roof.
The wave inhibiting top and the suspended ceiling jointly form the top of the inner tank, and the diameter of the suspended ceiling is obviously smaller than that of the inner tank.
The utility model provides a cryogenic liquids storage tank with press down ripples function, its includes outer jar and above-mentioned arbitrary item the inner tank, wherein, the inner tank is arranged in the outer jar, the furred ceiling of inner tank hang in the top of outer jar is inboard, the inner tank bottom of inner tank, inner tank wall, press down ripples top and furred ceiling with all be provided with the heat preservation between the outer jar.
The low-temperature liquid storage tank with the wave suppression function and the inner tank thereof have the advantages that the tank top of the inner tank is divided into two parts, namely the annular wave suppression top fixedly connected with the tank wall of the inner tank and the suspended ceiling suspended below the top of the outer tank, and the two parts are connected through the flexible sealing structure. The wave suppression top can enough rock produced shock wave to carry out the drainage and dredge to liquid when earthquake, reduces the wave height that rocks of liquid, can remove one section distance from inner tank jar wall edge to jar center with the connection position between inner tank furred ceiling and the inner tank jar wall again to the position is higher, farther from the liquid level, makes furred ceiling and flexible seal structure avoid rocking the impact of wave, is showing the security that furred ceiling and flexible seal structure are not impacted by the surge when improving the earthquake. The inner tank with the wave suppression roof is adopted, and under the condition that the distance from the suspended ceiling to the liquid level meets the standard specification requirements, the space reserved for the liquid shaking wave height caused by an earthquake can be properly reduced within the range of the annular area of the wave suppression roof, so that the height of the tank wall of the inner tank can be reduced, and the height of the tank wall of the outer tank can also be correspondingly reduced. The small ceiling diameter, the relatively inexpensive expanded perlite that can be used as the insulation between the wave inhibiting roof and the outer tank, all contribute to the cost savings in the construction of the cryogenic tank.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a cryogenic liquid storage tank having wave suppression features according to the present application;
FIG. 2 is a schematic diagram of the comparison of the height of the cryogenic liquid storage tank with wave suppression function of the present application with the height of the prior art storage tank
FIG. 3 is a schematic cross-sectional view of a first embodiment of a wave-suppressing top of an inner tank of a cryogenic liquid storage tank having wave-suppressing capability according to the present application;
FIG. 4 is a schematic cross-sectional view of a second embodiment of a wave-suppressing top of an inner tank in a cryogenic liquid storage tank having wave-suppressing capability according to the present application;
FIG. 5 is a schematic cross-sectional view of a third embodiment of a wave-suppressing roof of an inner tank in a cryogenic liquid storage tank having wave-suppressing function according to the present application;
FIG. 6 is a schematic cross-sectional view of a fourth embodiment of a wave-suppressing top of an inner tank of a cryogenic liquid storage tank having wave-suppressing capability according to the present application;
FIG. 7 is a schematic cross-sectional view of a fifth embodiment of a wave-suppressing top of an inner tank in a cryogenic liquid storage tank having wave-suppressing capabilities according to the present application;
FIG. 8 is a schematic cross-sectional view of a wave-suppressing top embodiment in an inner tank of a cryogenic liquid storage tank having wave-suppressing capabilities according to the present application;
FIG. 9 is a schematic cross-sectional view of a seventh embodiment of a wave-suppressing top of an inner tank of a cryogenic liquid storage tank having wave-suppressing features according to the present application;
FIG. 10 is a schematic cross-sectional view of an eighth embodiment of a wave-suppressing top of an inner tank of a cryogenic liquid storage tank having wave-suppressing capabilities according to the present application;
FIG. 11 is a schematic cross-sectional view of a ninth embodiment of a wave-suppressing top of an inner tank in a cryogenic liquid storage tank having wave-suppressing capabilities according to the present application;
FIG. 12 is a schematic cross-sectional view of a wave-suppressing top embodiment ten of the inner tank of the cryogenic liquid storage tank with wave-suppressing function of the present application;
fig. 13 is a schematic cross-sectional view of an eleventh embodiment of a wave-suppressing top of an inner tank in a cryogenic liquid storage tank having a wave-suppressing function according to the present application.
The reference numerals are explained below:
1a, the utility model relates to a low-temperature liquid storage tank with a wave suppression function; 1b, a cryogenic liquid storage tank of the prior art;
2. an inner tank; 20. the bottom of the inner tank; 21. an inner tank wall; 22. wave suppression top; 220. a vertical section; 221. an arc segment; 222. a straight section; 223. a horizontal segment; 224. a wave suppression plate; 225. a wave guide plate; 23. a flexible sealing structure; 24. a suspended ceiling;
3. an outer tank;
4. a heat-insulating layer;
5. pump columns and piping systems.
Detailed Description
Additional embodiments that incorporate the features and advantages of the present invention will be set forth in part in the description which follows. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
In the description of the present application, it should be understood that the structural type of the wave-suppressing top is graphically expressed by the shape of the longitudinal section of the rotation axis of the wave-suppressing top, and the arc section, the oblique straight section, the horizontal section and the vertical section described above refer to the generatrix forming the rotation shell of the wave-suppressing top, and correspond to the arc rotation shell, the conical rotation shell, the circular plate and the cylinder respectively; the wave suppressing plate and the wave guiding plate are also oblique straight lines in the figure, and correspond to the conical rotating shell, and particularly, the wave suppressing plate and the wave guiding plate can be a complete conical rotating shell or a discontinuous conical rotating shell segmented circumferentially. In addition, the utility model has no limitation on the size of each section of the rotating shell of the wave suppression top, the wave suppression plate and the wave guide plate, and only provides a rough qualitative description on the position of the wave suppression plate and the wave guide plate, and it should be understood that the structural type and the function of the wave suppression top are pointed out by the utility model, and the specific dimensional parameters need to be determined according to the size of the storage tank, the medium and the calculation of the earthquake shaking simulation. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
An inner tank 2 of a low-temperature liquid storage tank with a wave suppression function comprises an inner tank bottom 20, an inner tank wall 21, a wave suppression roof 22, a flexible sealing structure 23 and a suspended ceiling 24. The inner tank bottom 20 is a circular flat plate-like member, and the inner tank wall 21 is a vertical cylindrical member.
The suspended ceiling 24 is a disc-shaped top cover, and is suspended inside the top of the outer tank 3 by a plurality of suspension rods. The wave suppression top 22 is positioned between the inner tank wall 21 and the suspended ceiling 24 and fixedly connected with the inner tank wall 21. The suspended ceiling 24 is connected to the wave inhibiting roof 22 by a flexible sealing structure 23. The flexible sealing structure 23 does not restrict relative movement between the two.
The wave suppression crest 22 is a solid of revolution, whose generatrix is formed by a suitable combination of an arc section 221, an oblique straight section 222, a horizontal section 223, and a vertical section 220, and can be provided with a wave suppression plate 224 and a wave guide plate 225.
The inner tank deck is comprised of a wave inhibiting roof 22 and a suspended ceiling 24. Under the working condition of an earthquake, the wave suppression roof 22 has the functions of suppressing the height of the shaking waves and guiding the surged liquid to fall back to the inner tank 2. Due to the arrangement of the wave suppression top 22, on one hand, the diameter of the suspended ceiling 24 is obviously smaller than that of the inner tank 2 and can be arranged at a position higher than the liquid level, so that the impact of surge can be effectively avoided; on the other hand, referring to fig. 2, the height H2 of the cryogenic liquid tank 1a with wave suppression function of the present invention is compared with the height H1 of the cryogenic liquid tank 1b of the prior art. On the premise that the height of the suspended ceiling 24 from the liquid level is not less than the standard specification requirement, the height of the inner tank wall 21 can be properly reduced, and the construction cost of the storage tank is reduced.
The wave suppression crest 22 is a revolving body, the generatrix of which is formed by properly combining an arc section 221, an oblique straight section 222, a horizontal section 223 and a vertical section 220, and various combination schemes and different wave suppression plates 224 and wave guide plates 225 can form various implementation cases. According to the combination mode of the wave inhibiting top 22 revolving body generatrix, the main structure includes (but is not limited to) the following three major types and a plurality of minor types:
a type: the arc section 221 is connected tangentially to the inner tank wall 21, of which there are three subclasses:
a1: the arc section 221, the inclined straight section 222 and the vertical section 220 are connected in sequence, see fig. 3.
A2: the arc section 221, the inclined straight section 222, the horizontal section 223 and the vertical section 220 are connected in sequence, see fig. 4.
A3: the arc section 221, the horizontal section 223 and the vertical section 220 are connected in sequence, see fig. 5.
B type: the arc section 221 is connected to the inner tank wall 21 at an obtuse angle, of which there are two subclasses:
b1: the arc section 221 and the vertical section 220 are connected in sequence, see fig. 6.
B2: the arc section 221, the horizontal section 223 and the vertical section 220 are connected in sequence, see fig. 7.
Class C: the structure of the non-arc section, the inclined straight section 222 is connected with the inner tank wall 21, and there are four categories:
c1: the inclined straight section 222 and the vertical section 220 are connected in sequence, see fig. 8.
C2: the inclined straight section 222, the horizontal section 223 and the vertical section 220 are connected in sequence, and refer to fig. 9.
C3: the plurality of inclined straight sections 222 and the plurality of vertical sections 220 are connected in sequence, see fig. 10.
C4: the plurality of inclined straight sections 222, the horizontal section 223 and the vertical section 220 are connected in sequence, see fig. 11.
In each of the above structures, the vertical section 220 is connected to the suspended ceiling 24 by a flexible sealing structure 23.
The arc section 221, the inclined straight section 222, the horizontal section 223 and the vertical section 220 are referred to as a generatrix forming the wave suppression crown 22 revolving body, and correspond to an arc revolving shell, a conical revolving shell, a circular ring plate and a cylinder body respectively.
The above-described structures may be used as they are, or may be used in combination with the wave suppressing plate 224 and the wave guiding plate 225. The wave suppressing plate 224 and the wave guiding plate 225 can be combined with the above-mentioned structures, respectively or in combination, to form more embodiments. For example: a wave suppression plate 224 and a wave guide plate 225 are arranged on the basis of the C4 model, as shown in FIG. 12; the waveguide plate 225 is provided on the basis of B2 type, as shown in fig. 13.
The wave suppression plate 224 may be disposed on the inner tank wall 21 near the connection with the wave suppression roof 22, or may be disposed on the arc section 221 and the inclined straight section 222 to suppress the surged waves. The wave guide plate 225 may be disposed on the inclined straight section 222 or the horizontal section 223 near the vertical section 220 to guide the surging waves downward to fall back as soon as possible, so as to avoid impacting the flexible sealing structure 23 and the ceiling 24.
The vertical section 220 is a member connecting the wave inhibiting roof 22 and the flexible sealing structure 23, and simultaneously plays a role in blocking liquid rushing up along the wave inhibiting roof 22 from rushing towards the flexible sealing structure 23 and the suspended ceiling 24, and can enable the installation height of the suspended ceiling 24 to have a larger selection range, so as to adapt to the requirements of different design working conditions.
Referring to fig. 1, a cryogenic liquid storage tank 1a with wave suppression function includes an outer tank 3, an insulating layer 4, a pump column and piping system 5, and the inner tank 2. Wherein, inner tank 2 is arranged in outer jar 3, and inner tank 2's furred ceiling 24 hangs in outer jar 3's top below, and inner tank jar bottom 20, inner tank jar wall 21, wave suppression top 22 and the furred ceiling 24 of inner tank 2 are provided with heat preservation 4 between 3 with outer jar.
Referring to fig. 1, a cryogenic liquid storage tank 1a having a wave-suppressing function includes an inner tank 2 and an outer tank 3. Wherein, the outer tank 3 is a flat-bottom, vertical and cylindrical vault tank, and the outer tank 3 is made of concrete or metal. The inner tank 2 is arranged in the outer tank 3, and the outer tank 3 surrounds the inner tank 2.
The inner tank 2 and the outer tank 3 are cylindrical as a whole and are a solid of revolution with respect to the central axis.
The inner tank 2 is primarily made of metal and includes an inner tank bottom 20, inner tank walls 21, a wave inhibiting roof 22, a flexible sealing structure 23, and a suspended ceiling 24. The inner tank bottom 20 is a flat bottom, the inner tank wall 21 is a vertical cylinder, and the difference from the prior art is that the inner tank top is composed of a wave suppression top 22, a flexible sealing structure 23 and a suspended ceiling 24.
The upper end of the inner tank wall 21 of the inner tank 2 is connected with the wave suppression roof 22, the two are welded into a whole and mutually reinforced, the rigidity is greatly increased, and the surge impact of shaking liquid can be resisted in an earthquake. The suspended ceiling 24 is located in the central cylinder of the wave inhibiting top 22 and is connected with each other through a flexible sealing structure 23, and the suspended ceiling and the wave inhibiting top 22 jointly form the tank top of the inner tank. The lower end of the inner tank wall 21 is welded to the inner tank bottom 20 to form a closed end. And a heat-insulating layer 4 is arranged between the inner tank bottom 20, the inner tank wall 21, the wave inhibiting roof 22, the suspended ceiling 24 and the outer tank 3 of the inner tank 2.
Referring to fig. 6, the junction between the arc 221 and the inner tank wall 21 is at an obtuse angle. As such, the curvature of arc segment 221 is relatively small to facilitate manufacturing.
Referring to fig. 12, the inner tank 2 further includes a wave suppression plate 224 fixedly disposed along the inner surface of the inner tank wall 21, the wave suppression plate 224 is located near the connection between the arc section 221 and the inner tank wall 21, and the wave suppression plate 224 is close to the arc section 221 to reduce the impact of surge on the connection weld between the arc section 221 and the inner tank wall 21.
The wave suppression plate 224 may be an integral conical shell (a whole-circle revolving body) or a conical shell-shaped baffle plate which is circumferentially and sectionally and uniformly arranged, and is welded with the inner tank wall 21, so that the impact force of the surging liquid on the obtuse angle connecting part can be effectively shared.
The wave suppression plate 224 may be made of a corrugated plate, instead of a flat plate, to enhance the rigidity.
Referring to fig. 12 and 13, the inner tank 2 further includes a wave guide plate 225, and the wave guide plate 225 is disposed inside the wave suppression top 22 and closer to the vertical section 220, so as to guide the surge returning back along the wave suppression top 22 downward, so that the surge rapidly falls back, and avoid large impact on the vertical section 220.
The wave guide plate 225 may be an integral conical shell (a whole circle of revolution body), or may be a conical shell-shaped baffle plate uniformly arranged in circumferential segments, and is welded with the arc section 221, the inclined straight section 222, or the horizontal section 223 of the wave suppression roof 22, so as to effectively share the impact force of the surging liquid on the vertical section 220. The waveguide plate 225 may be made of a corrugated plate, instead of a flat plate, to enhance the rigidity thereof.
The setting effect of the wave suppression plate 224 and the wave guide plate 225 and the overall effect of the wave suppression peak 22 can be evaluated by seismic oscillation simulation calculation.
The wave inhibiting top 22 can conduct drainage and dredge on shock waves generated by liquid shaking as a fixed component, the shaking wave height of the liquid is reduced, the impact of the liquid on the suspended ceiling 24 and the flexible sealing structure 23 is avoided, meanwhile, a reinforcing effect can be achieved on the tank wall, and the rigidity of the tank wall is increased. The presence of the wave inhibiting roof 22 reduces the diameter of the suspended ceiling 24 and also reduces the perimeter of the suspended ceiling 24, which means that the length of the flexible sealing structure 23 between the suspended ceiling 24 and the upper vertical section 220 (cylinder) of the wave inhibiting roof 22 is reduced, which is beneficial for reducing the evaporation of cryogenic liquids.
In addition, because the diameter of the suspended ceiling 24 is reduced, the suspended ceiling 24 can be installed at a position farther away from the liquid surface and higher, so that the swaying liquid can not touch the suspended ceiling 24, and the safety of the suspended ceiling 24 in the earthquake is improved.
The area of the suspended ceiling 24 is reduced, the range of using cheap heat-insulating material expanded perlite is expanded for the heat-insulating layer 4, the application range of heat-insulating cotton with higher price is reduced, and the construction cost is favorably reduced.
Compare with prior art's inner tank structure, under the same circumstances of diameter and effective volume, the setting of restraining ripples top 22 on inner tank 2, can restrain rocking and rolling of liquid in the earthquake effectively, effectively reduce the wave height that rocks of jar interior liquid, reduce the reservation space height more than the highest liquid level of the ring zone that the ripples top 22 covers of restraining, thereby reduce inner tank wall 21's height, and the corresponding jar wall height that reduces outer jar 3, the less position of furred ceiling 24's diameter is higher, shortened with the distance between the outer jar 3 tops, the pull rod length of furred ceiling 24 has also been shortened, the construction and the construction cost of low temperature liquid storage tank 1a that have the function of restraining ripples have been practiced thrift.
While the utility model has been described in terms of several exemplary embodiments, it is to be 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. The utility model provides an inner tank of cryogenic liquids storage tank with restrain ripples function, includes inner tank jar wall, inner tank bottoms, presses down ripples top, flexible seal structure and furred ceiling, its characterized in that inner tank jar wall with set up the cyclic annular that has between the furred ceiling and press down ripples top with the guided wave function, press down ripples top with inner tank jar wall fixed connection, and should press down ripples top with connect through flexible seal structure between the furred ceiling.
2. The inner tank according to claim 1, wherein the wave suppression crest is an annular solid of revolution as a whole, and a generatrix of the solid of revolution is formed by a combination of at least two of an arc section, an inclined straight section, a horizontal section and a vertical section.
3. The inner vessel according to claim 2, wherein a generatrix of the wave inhibiting peak is any one of three structures, i.e., an arc section tangent to the inner vessel wall, an arc section connected to the inner vessel wall at an obtuse angle, and no arc section.
4. The inner vessel according to claim 3, wherein a generatrix of the wave inhibiting peak is a structure in which any one of the following arc sections is tangent to the inner vessel wall:
the arc section, the inclined straight section and the vertical section are sequentially connected, the arc section is tangent to the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or alternatively
The arc section, the inclined straight section, the horizontal section and the vertical section are sequentially connected, the arc section is tangent to the wall of the inner tank, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or also or
The arc section, the horizontal section and the vertical section are sequentially connected, the arc section is tangent to the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure.
5. The inner tank according to claim 3, wherein the generatrix of the wave inhibiting top is any one of the following arc sections connected with the inner tank wall at an obtuse angle:
the arc section and the vertical section are sequentially connected, the arc section is connected with the wall of the inner tank at an obtuse angle, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The arc section, the horizontal section and the vertical section are sequentially connected, the arc section is connected with the inner tank wall in an obtuse angle, and the vertical section is connected with the suspended ceiling through a flexible sealing structure.
6. The inner vessel according to claim 3, wherein the generatrix of the wave inhibiting peak is of any one of the following arc-free configurations:
the inclined straight section and the vertical section are sequentially connected, the inclined straight section is connected with the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The inclined straight section, the horizontal section and the vertical section are sequentially connected, the inclined straight section is connected with the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or
The plurality of inclined and straight sections and the vertical section are sequentially connected, the inclined and straight sections are connected with the inner tank wall, and the vertical section is connected with the suspended ceiling through a flexible sealing structure; or also or
A plurality of oblique straight sections, horizontal section, vertical section connect gradually, oblique straight section with inner tank jar wall links to each other, vertical section with connect through flexible seal structure between the furred ceiling.
7. The inner tank according to claim 2, characterized in that the wave inhibiting top is fixedly provided with a wave inhibiting plate and/or a wave guide plate on the inner surface.
8. The inner tank of claim 1, wherein the wave inhibiting roof together with the suspended ceiling form a roof of the inner tank.
9. The inner tank of claim 1, wherein the ceiling is taller than the height of the inner tank walls.
10. A cryogenic liquid storage tank with a wave suppression function comprises an outer tank and an inner tank of any one of claims 1-9, wherein the inner tank is arranged in the outer tank, a suspended ceiling of the inner tank is suspended on the inner side of the top of the outer tank, and heat insulation layers are arranged between the bottom of the inner tank, the wall of the inner tank, the wave suppression top and the suspended ceiling of the inner tank and the outer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123275393.1U CN216896771U (en) | 2021-12-23 | 2021-12-23 | Low-temperature liquid storage tank with wave suppression function and inner tank thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123275393.1U CN216896771U (en) | 2021-12-23 | 2021-12-23 | Low-temperature liquid storage tank with wave suppression function and inner tank thereof |
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