A liquid natural gas storage tank capable of differential temperature regulation

Abstract

The application discloses a liquid natural gas storage tank capable of temperature difference adjustment, and relates to the field of natural gas storage tanks.The liquid natural gas storage tank comprises a storage tank body and a reserved nesting part.The reserved nesting part is nested on the outer side of the storage tank body, and exhaust through holes are uniformly arranged on the outer surface of the reserved nesting part.A preset butt joint air bag assembly is butt jointed to the outer end of the storage tank body, vertical guide grooves are arranged on the outer side of the reserved nesting part, and movable butt joints are nested on the inner side of the vertical guide grooves.The liquid natural gas storage tank capable of temperature difference adjustment is provided with a self-moving structure, which enables the second wedge to drive the sealing movable part to staggered slide along the outer side of the exhaust through holes, and then adaptively controls the sealing connection state of the whole reserved nesting part, so that the heat stored in the interior is rapidly discharged along the uniformly distributed exhaust through holes, and the working temperature difference of the whole storage tank body is adaptively adjusted.

Description

Technical Field

[0001] This invention relates to the field of natural gas storage tank technology, specifically to a liquefied natural gas storage tank capable of temperature difference regulation. Background Technology

[0002] As one of the essential pieces of equipment for natural gas storage, the quality of liquefied natural gas storage tanks determines the overall storage quality. A liquefied natural gas storage tank, such as one disclosed in CN216202459U, includes an outer shell. A slider is fixedly installed on the outer wall of the outer shell. A base is movably connected to the outer wall of the outer shell. A sliding groove is formed inside the base. A fixing block is fixedly installed inside the base. A first spring is fixedly installed on one side of the fixing block. A sliding rod is fixedly installed on one side of the fixing block. A movable block is movably connected to the outer wall of the sliding rod. A wedge block is fixedly installed at the bottom of the outer shell. A limiting post is fixedly installed at the bottom of the outer shell. A limiting barrel is slidably connected to the outer wall of the limiting post. A second spring is fixedly installed at the top of the fixing block. This design allows the device to have good vibration damping, preventing collisions and damage caused by vibration during transportation. For example, a cooling device for a natural gas storage tank, disclosed in CN212745963U, includes a tank body, a base, a manhole, an inlet pipe, and an exhaust pipe. A first inner tank is fixedly installed inside the tank body, and a second inner tank is fixedly installed inside the first inner tank. Insulation cotton is fixedly filled in the gap between the outer wall of the first inner tank and the inner wall of the tank body. The gap between the inner wall of the first inner tank and the outer wall of the second inner tank forms a water storage interlayer. A water tank is fixedly installed at one bottom end of the tank body, and a circulating pump is fixedly installed on the side wall of the water tank. This device has strong explosion-proof performance and can block external heat, thus preventing the internal temperature of the tank from rising. Simultaneously, it can rapidly cool the tank body during natural gas storage, greatly increasing safety during use. A self-supporting container, such as one disclosed in CN105683645B, is used for heat insulation of a liquid storage tank. It includes: a base plate and a cover plate; a plurality of support meshes between the base plate and the cover plate; the support meshes have a composite structure comprising a central core extending in the thickness direction, and two outer shells sandwiched around the central core, the central core having a lower thermal conductivity than the outer shells; the outer shells comprising a fiber-reinforced thermoplastic polymer matrix, the central core comprising a thermoplastic polymer matrix; and the outer shells and the central core being connected by melting the thermoplastic matrices of the outer shells and the central core. Most of the aforementioned existing technologies improve the overall structure, while existing liquefied natural gas storage tanks are mostly in a solid state during operation. They cannot adaptively adjust the temperature difference according to the needs of different usage environments to meet the temperature storage requirements. This results in the need for manual control of temperature and other conditions in the storage environment, which leads to certain limitations in their use. Summary of the Invention

[0003] The purpose of this invention is to provide a liquefied natural gas storage tank capable of temperature difference regulation, in order to solve the problem mentioned in the background art that, during operation, most of them are in a solid state and cannot adaptively adjust the temperature difference according to the needs of different usage environments, thereby meeting their temperature storage requirements, resulting in the need for manual control of temperature and other conditions in the storage environment.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a liquid natural gas storage tank capable of temperature difference regulation, comprising a storage tank body and a reserved nesting component, wherein the reserved nesting component is nested on the outer side of the storage tank body, and the outer surface of the reserved nesting component is uniformly provided with exhaust vent holes; The outer end of the storage tank body is bonded to a preset docking airbag assembly, and a vertical guide groove is provided on the outer side of the reserved nesting part. A movable docking part is nested and installed on the inner side of the vertical guide groove. A first wedge is fixedly connected to the outer side of the movable docking part. A self-moving structure is provided on the outer side of the reserved nesting part, and the closed state of the reserved nesting part is adaptively controlled by the self-moving structure. The inner side of the reserved nesting component is provided with a heat conduction structure, which adaptively controls the storage temperature inside the reserved nesting component.

[0005] Furthermore, the self-moving structure is provided with a second wedge, which is nested and connected to the outside of the reserved nesting part, and a sealing movable part is fixedly connected to the outside of the second wedge, and the sealing movable part corresponds to the outer position of the exhaust hole.

[0006] Furthermore, the inner wall of the reserved nesting component is provided with a reserved inclined groove, and a docking movable component is nested and installed inside the reserved inclined groove. A first reserved steel wire rope is fixedly connected to the outer side of the docking movable component. The first reserved steel wire rope passes through the inner wall of the reserved nesting component, and the end of the first reserved steel wire rope is docked with the lower end of the sealing movable component.

[0007] Furthermore, the preset docking airbag assembly stores hydrogen gas inside, and the preset docking airbag assembly is a vertically deformable structure. During the expansion of the preset docking airbag assembly, it pushes the outer movable docking member to move upward along the vertical guide groove. The movable docking member and the first wedge-shaped member are an integrated structure.

[0008] Furthermore, during the upward movement of the first wedge, pressure is simultaneously applied to the contacting second wedge, and the second wedge drives the sealing movable member to slide and intersect along the outside of the exhaust hole, and the sealing movable member is distributed at an equal angle with respect to the center point of the reserved nesting member.

[0009] Furthermore, during the outward movement of the sealing movable component under force, the first reserved steel wire rope drives the docking movable component to slide along the inner wall of the reserved nesting component, and the docking movable component has a ring-shaped structure.

[0010] Furthermore, the heat conduction structure is provided with a second reserved steel wire rope, which is connected to the rear side of the connecting movable part. The inner end of the reserved nesting part is provided with a guide reserved groove, and a nested connecting block is nested on the outer side of the guide reserved groove. The nested connecting block is connected to the end of the second reserved steel wire rope. The lower end of the nested connecting block is connected to a return spring, which is connected to the inner wall of the guide reserved groove. An external reserved cooling plate is connected to the inner side of the reserved nesting part, and the external reserved cooling plate is connected to an external power supply. Contact switches are fixedly connected to the outer sides of both the nested connecting block and the external reserved cooling plate.

[0011] Furthermore, during the outward movement of the docking movable component under force, the nested connecting block is driven to move inward by the second reserved steel wire rope, and the nested connecting block is symmetrically distributed about the center point of the reserved nested component.

[0012] Furthermore, during the inward movement of the nested connecting block, the stretching reset spring forms an elastic structure, and when the nested connecting block comes into contact with the contact switch on the outside of the external reserved cooling plate, a power supply state is formed.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This liquefied natural gas storage tank, capable of temperature difference regulation, is equipped with a self-moving structure and a reserved nesting component. During the operation of the storage tank, it automatically stores heat generated by the external environment or the internal equipment, thereby meeting the storage needs of the materials inside the storage tank. When the temperature on the outside or inside of the storage tank is too high, the preset docking airbag assembly at the outer end will expand vertically, thereby pushing the outer movable docking component and the first wedge component to move upward along the vertical guide groove. The upward movement of the first wedge component applies pressure to the contacting second wedge component, causing the second wedge component to drive the sealing movable component to slide alternately along the outside of the exhaust hole. This adaptively controls the sealing connection state of the reserved nesting component as a whole, allowing the heat stored inside to be quickly discharged along the evenly distributed exhaust holes, thus achieving adaptive regulation of the overall working temperature difference of the storage tank. Furthermore, during the outward movement of the overall sealed movable component under force, it will drive the docking movable component of the ring-shaped structure to move outward along the inner wall of the reserved nesting component through the first reserved steel wire rope, thereby pushing the hot air inside the reserved nesting component to be discharged outward, realizing the rapid discharge of heat, avoiding the traditional solid placement state, and can adaptively adjust the temperature difference according to the needs of different use environments, thereby meeting the temperature storage requirements, without the need for manual control of temperature and other conditions according to the storage environment, thus improving the practicality of the device; Furthermore, a heat conduction structure is provided. When the docking moving part is subjected to force, it will drive the nested connecting block to move through the second reserved steel wire rope. The nested connecting block will move to contact the external reserved cooling plate, so that the nested connecting block and the contact switch on the outside of the external reserved cooling plate come into contact to form a power supply state. Thus, the heat conduction structure adaptively controls the storage temperature inside the reserved nested part, and further regulates the working temperature of the storage tank body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the semi-sectional three-dimensional structure of the reserved nesting component in this invention; Figure 3 This is a three-dimensional structural diagram of the second wedge-shaped component of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the central part of the structure; Figure 5 This is a three-dimensional structural diagram of the sealing movable component of the present invention; Figure 6 This is a three-dimensional structural diagram of the pre-designed docking airbag assembly of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the reserved nested component in this invention; Figure 8 This is a three-dimensional structural diagram of the movable docking component of the present invention; Figure 9 This is a three-dimensional structural diagram of the contact switch of the present invention.

[0015] In the diagram: 1. Storage tank body; 2. Reserved nesting component; 3. Pre-set docking airbag assembly; 4. Exhaust vent; 5. Vertical guide groove; 6. Movable docking component; 7. First wedge-shaped component; 8. Second wedge-shaped component; 9. Sealing movable component; 10. First reserved steel wire rope; 11. Reserved inclined groove; 12. Dock movable component; 13. Second reserved steel wire rope; 14. Nested connecting block; 15. Guide reserved groove; 16. Return spring; 17. Contact switch; 18. External reserved cooling plate. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solution: a liquid natural gas storage tank capable of temperature difference regulation, comprising a storage tank body 1, a reserved nesting part 2, a preset docking airbag assembly 3, an exhaust hole 4, a vertical guide groove 5, a movable docking part 6, a first wedge 7, a second wedge 8, a sealing movable part 9, a first reserved steel wire rope 10, a reserved inclined groove 11, a docking movable part 12, a second reserved steel wire rope 13, a nested connecting block 14, a guide reserved groove 15, a reset spring 16, a contact switch 17, and an external reserved cooling plate 18; A reserved nesting part 2 is nested on the outside of the storage tank body 1, and the outer surface of the reserved nesting part 2 is uniformly provided with exhaust holes 4; The outer end of the storage tank body 1 is bonded with a preset docking airbag assembly 3, and the outer side of the reserved nesting part 2 is provided with a vertical guide groove 5, and the inner side of the vertical guide groove 5 is nested with a movable docking part 6. The outer side of the movable docking part 6 is fixedly connected with a first wedge-shaped part 7, and the outer side of the reserved nesting part 2 is provided with a self-moving structure, which adaptively controls the closed state of the reserved nesting part 2 through the self-moving structure. The self-moving structure is provided with a second wedge-shaped member 8, which is nested and connected to the outside of the reserved nested member 2. A sealing movable member 9 is fixedly connected to the outside of the second wedge-shaped member 8, and the sealing movable member 9 corresponds to the outer position of the exhaust hole 4. A reserved inclined groove 11 is opened on the inner wall of the reserved nested member 2, and a docking movable member 12 is nested and installed on the inner side of the reserved inclined groove 11. A first reserved steel wire rope 10 is fixedly connected to the outside of the docking movable member 12, and the first reserved steel wire rope 10 passes through the inner wall of the reserved nested member 2. The end of the first reserved steel wire rope 10 is connected to the lower end of the sealing movable member 9.

[0018] The pre-designed docking airbag assembly 3 stores hydrogen gas and has a vertical deformation structure. During its expansion, the pre-designed docking airbag assembly 3 pushes the outer movable docking member 6 upwards along the vertical guide groove 5. The movable docking member 6 and the first wedge-shaped member 7 are an integrated structure. As the first wedge-shaped member 7 moves upwards, it simultaneously applies pressure to the contacting second wedge-shaped member 8. The second wedge-shaped member 8 drives the sealing movable member 9 to slide and interweave along the outer side of the exhaust hole 4. The sealing movable members 9 are evenly distributed about the center point of the reserved nesting member 2. During the outward movement of the sealing movable member 9 under force, the first reserved steel wire rope 10 drives the docking movable member 12 to slide along the inner wall of the reserved nesting member 2, forming a ring-shaped structure.

[0019] Example 2: Based on Example 1, a heat conduction structure is also disclosed, the specific structure of which is as follows: The inner side of the reserved nested component 2 is provided with a heat conduction structure, which adaptively controls the storage temperature inside the reserved nested component 2.

[0020] The heat conduction structure is equipped with a second reserved steel wire rope 13, which is connected to the rear side of the docking movable part 12. The inner end of the reserved nesting part 2 is provided with a guide reserved groove 15, and a nested connecting block 14 is nested on the outer side of the guide reserved groove 15. The nested connecting block 14 is connected to the end of the second reserved steel wire rope 13. The lower end of the nested connecting block 14 is connected to a return spring 16, and the return spring 16 is connected to the inner wall of the guide reserved groove 15. An external reserved cooling plate 18 is installed on the inner side of the reserved nesting part 2, and the external reserved cooling plate 18 is connected to an external power supply. Contact switches 17 are fixedly connected to the outer sides of both the nested connecting block 14 and the external reserved cooling plate 18. During the outward movement of the docking movable part 12 under force, the second reserved steel wire rope 13 drives the nested connecting block 14 to move inward, and the nested connecting block 14 is symmetrically distributed about the center point of the reserved nesting part 2. During the operation of the storage tank body 1, the reserved nesting component 2 automatically stores the heat generated by the external environment or the equipment, thereby meeting the storage needs of the materials inside the storage tank body 1. When the temperature on the outside or inside of the storage tank body 1 is too high, the preset docking airbag assembly 3 at its outer end will expand vertically, thereby pushing the outer movable docking component 6 and the first wedge 7 to move upward along the vertical guide groove 5. The upward movement of the first wedge 7 applies pressure to the contacting second wedge 8 simultaneously, causing the second wedge 8 to drive the sealing movable component 9 to slide alternately along the outside of the exhaust hole 4, thereby adaptively controlling the overall sealing and connection state of the reserved nesting component 2, so that the heat stored inside can be quickly discharged along the evenly distributed exhaust holes 4, realizing adaptive adjustment of the overall working temperature difference of the storage tank body 1.

[0021] During the inward movement of the nested connecting block 14, the stretching return spring 16 forms an elastic structure, and when the nested connecting block 14 and the contact switch 17 on the outer side of the external reserved cooling plate 18 come into contact, a power supply state is formed; during the outward movement of the overall sealed movable part 9 under force, it will drive the ring-shaped docking movable part 12 to move outward along the inner wall of the reserved nest 2 through the first reserved steel wire rope 10, thereby pushing the hot air inside the reserved nest 2 to be discharged outward, realizing rapid heat dissipation, avoiding the traditional solid placement state, and can adaptively adjust the temperature according to the needs of different usage environments. Differential adjustment processing is used to meet the temperature storage requirements, eliminating the need for manual temperature control based on storage environment needs. When the docking movable part 12 is subjected to force, it will drive the nested connecting block 14 to move through the second reserved steel wire rope 13. The nested connecting block 14 will move to contact the external reserved cooling plate 18, so that the nested connecting block 14 and the contact switch 17 on the outside of the external reserved cooling plate 18 come into contact to form a power supply state. Thus, the storage temperature inside the reserved nested part 2 is adaptively controlled through the heat conduction structure, further adjusting the working temperature of the storage tank body 1.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid natural gas storage tank capable of temperature difference regulation, comprising a storage tank body (1) and a reserved nesting part (2), wherein the reserved nesting part (2) is nested on the outer side of the storage tank body (1), and the outer surface of the reserved nesting part (2) is uniformly provided with exhaust vents (4). Its features are: The outer end of the storage tank body (1) is bonded to a pre-set docking airbag assembly (3), and a vertical guide groove (5) is provided on the outer side of the reserved nesting part (2), and a movable docking part (6) is nested on the inner side of the vertical guide groove (5). A first wedge-shaped part (7) is fixedly connected to the outer side of the movable docking part (6). A self-moving structure is provided on the outer side of the reserved nesting part (2), and the closed state of the reserved nesting part (2) is adaptively controlled by the self-moving structure. The inner side of the reserved nesting part (2) is provided with a heat conduction structure, and the storage temperature inside the reserved nesting part (2) is adaptively controlled through the heat conduction structure. The self-moving structure is provided with a second wedge (8), and the second wedge (8) is nested and connected to the outside of the reserved nest (2), and a sealing movable member (9) is fixedly connected to the outside of the second wedge (8), and the sealing movable member (9) corresponds to the outside position of the exhaust hole (4); The inner wall of the reserved nesting part (2) is provided with a reserved inclined groove (11), and a docking movable part (12) is nested inside the reserved inclined groove (11). A first reserved steel wire rope (10) is fixedly connected to the outer side of the docking movable part (12). The first reserved steel wire rope (10) passes through the inner wall of the reserved nesting part (2), and the end of the first reserved steel wire rope (10) is docked with the lower end of the sealing movable part (9). The preset docking airbag assembly (3) stores hydrogen gas inside, and the preset docking airbag assembly (3) is a vertical deformation structure. During the expansion of the preset docking airbag assembly (3), it pushes the outer movable docking part (6) to move upward along the vertical guide groove (5). The movable docking part (6) and the first wedge part (7) are an integrated structure. The heat conduction structure is provided with a second reserved steel wire rope (13), and the second reserved steel wire rope (13) is connected to the rear side of the connecting movable part (12). The inner end of the reserved nesting part (2) is provided with a guide reserved groove (15), and a nested connecting block (14) is nested on the outer side of the guide reserved groove (15). The nested connecting block (14) is connected to the end of the second reserved steel wire rope (13). The lower end of the nested connecting block (14) is connected to a reset spring (16), and the reset spring (16) is connected to the inner wall of the guide reserved groove (15). The inner side of the reserved nesting part (2) is fitted with an external reserved cooling plate (18), and the external reserved cooling plate (18) is connected to an external power supply. The outer sides of the nesting connecting block (14) and the external reserved cooling plate (18) are both fixedly connected with contact switches (17).

2. The liquefied natural gas storage tank capable of temperature difference regulation according to claim 1, characterized in that: During the upward movement of the first wedge (7), pressure is applied simultaneously to the contacting second wedge (8), and the second wedge (8) drives the sealing movable part (9) to slide and intersect along the outside of the exhaust hole (4), and the sealing movable part (9) is distributed at equal angles with respect to the center point of the reserved nesting part (2).

3. A liquefied natural gas storage tank capable of temperature difference regulation according to claim 2, characterized in that: During the process of the sealing movable part (9) being moved outward under force, the first reserved steel wire rope (10) drives the docking movable part (12) to slide along the inner wall of the reserved nesting part (2), and the docking movable part (12) has a ring-shaped structure.

4. A liquefied natural gas storage tank capable of temperature difference regulation according to claim 3, characterized in that: During the outward movement of the docking movable part (12) under force, the nested connecting block (14) is driven to move inward by the second reserved steel wire rope (13), and the nested connecting block (14) is symmetrically distributed about the center point of the reserved nested part (2).

5. A liquefied natural gas storage tank capable of temperature difference regulation according to claim 4, characterized in that: During the inward movement of the nested connecting block (14), the stretching reset spring (16) forms an elastic structure, and when the nested connecting block (14) and the contact switch (17) on the outside of the external reserved cooling plate (18) come into contact with each other, a power supply state is formed.

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