CN116123439A - Thermal insulation material for LNG (liquefied Natural gas) cylinder - Google Patents
Thermal insulation material for LNG (liquefied Natural gas) cylinder Download PDFInfo
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- CN116123439A CN116123439A CN202211672247.9A CN202211672247A CN116123439A CN 116123439 A CN116123439 A CN 116123439A CN 202211672247 A CN202211672247 A CN 202211672247A CN 116123439 A CN116123439 A CN 116123439A
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- polyester fiber
- fiber layer
- memory metal
- lng
- metal strip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/10—Vessels not under pressure with provision for thermal insulation by liquid-circulating or vapour-circulating jackets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/035—Orientation with substantially horizontal main axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0345—Fibres
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
- F17C2227/0344—Air cooling
- F17C2227/0346—Air cooling by forced circulation, e.g. using a fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0369—Localisation of heat exchange in or on a vessel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a heat insulation material for an LNG (liquefied Natural gas) cylinder, and particularly relates to the field of LNG cylinders, wherein an aluminized PET (polyethylene terephthalate) layer is arranged on the outer side of the LNG cylinder, and a polyester fiber layer is bonded on the outer side of the aluminized PET layer; the polyester fiber layer is bilayer structure, and the inside on polyester fiber layer is the cavity form setting, and the inside fixed mounting on polyester fiber layer has the heat pipe, and the inner wall fixed mounting of heat pipe has the location horizontal pole, and the outside joint of location horizontal pole has memory metal strip, and memory metal strip is the plasticity material, and the memory temperature of memory metal strip sets up to 45 degrees. According to the invention, the memory metal strips are arranged, when the temperature in the polyester fiber layer exceeds 45 degrees, the memory metal strips are instantaneously deformed when meeting heat and wound on the surface of the positioning cross rod, and the movable sealing plug is pulled to slide in the heat absorption pipe to generate negative pressure, so that the liquid in the liquid storage tank is adsorbed in the heat absorption pipe to flow, and the heat in the polyester fiber layer is taken away, thereby realizing automatic cooling and improving the safety.
Description
Technical Field
The invention relates to the technical field of LNG cylinders, in particular to a heat insulation material for an LNG cylinder.
Background
The LNG gas cylinder is a bottle for storing liquid natural gas, is not only suitable for urban buses, but also suitable for large-scale freight vehicles, especially long-distance transport vehicles, has the outstanding advantages of high energy density and long driving range of the automobile, can reach more than 400km, and has remarkable economic benefit compared with diesel oil and gasoline used by the automobile. The gas cylinder can be divided into 7 main parts of an inner container, a shell, a heat insulation layer, a supporting device, a liquid adding system, a pressurizing system and a vaporizing system, and four functions of storage, transportation, liquid supply and gas supply are realized.
Although the LNG cylinder has a lot of limitations when in use, the LNG cylinder is required to be placed in a place with good ventilation, and cannot be exposed to the sun in a high-temperature environment with the temperature of 60 ℃ or higher for a long time, but in hot summer, when in outdoor operation, the LNG cylinder is easy to rise in temperature, so that safety accidents are caused, and therefore, how to design a heat insulation material for the LNG cylinder is a problem which needs to be solved currently.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a heat insulation material for an LNG (liquefied Natural gas) cylinder, which solves the problems in the background art by arranging a memory metal strip and utilizing the heated deformation of the memory metal strip to pull a movable sealing plug to slide in a heat absorption pipe so that the liquid in a liquid storage tank flows out to take away the heat in a polyester fiber layer.
In order to achieve the above purpose, the present invention provides the following technical solutions: the heat insulation material for the LNG gas cylinder comprises the LNG gas cylinder, wherein an aluminized PET layer is arranged on the outer side of the LNG gas cylinder, and a polyester fiber layer is bonded on the outer side of the aluminized PET layer;
the polyester fiber layer is of a double-layer structure, the inside of the polyester fiber layer is hollow, a heat absorption pipe is fixedly arranged in the polyester fiber layer, a positioning cross rod is fixedly arranged on the inner wall of the heat absorption pipe, a memory metal strip is clamped on the outer side of the positioning cross rod, the memory metal strip is made of plastic materials, the memory temperature of the memory metal strip is set to be 45 ℃, the memory metal strip is arranged in a straight shape in a normal state, and the memory metal strip can be automatically wound on the outer side of the positioning cross rod after being heated;
the one end fixedly connected with movable sealing plug of memory metal strip, movable sealing plug is sliding connection form setting with the heat pipe, the one end intercommunication of heat pipe is equipped with the drainage pipe, the top intercommunication of drainage pipe is equipped with the liquid storage pot, the inside of liquid storage pot is equipped with liquid, the inboard sliding connection of drainage pipe has movable slide bar, the central point of movable slide bar puts department fixed mounting to have a center pole, the bottom fixed mounting of center pole has movable leak protection stopper, after the movable slide bar slides the bottom to the drainage pipe, will have the clearance between movable leak protection stopper and the drainage pipe, the bottom of movable leak protection stopper is semicircle type setting, movable leak protection stopper is laminating form setting with movable sealing plug, movable leak protection stopper is sealed form setting to the drainage pipe.
In a preferred embodiment, one side of the polyester fiber layer is inserted with a guide cannula, one end of the guide cannula is fixedly connected with a round hollow sleeve, one side of the movable sealing plug is fixedly connected with an extension connecting rope, and the extension connecting rope and the guide cannula are arranged in a sliding connection mode.
In a preferred embodiment, the outer side of the lengthened connecting rope is wound with an I-shaped roller, a scroll spring is arranged in the I-shaped roller, and one end of the lengthened connecting rope is arranged in a clamping manner with the scroll spring;
one side of the round hollow sleeve is fixedly provided with a transverse round rod, the I-shaped roller is rotationally connected to the outer side of the transverse round rod, and one side of the I-shaped roller is provided with a tooth block.
In a preferred embodiment, a gear is meshed with the outer side of the tooth block, a central shaft is fixedly arranged on one side of the gear, and fan blades are fixedly arranged on the outer side of the central shaft;
the inner side of the central shaft is rotationally connected with a T-shaped positioning rod, and the T-shaped positioning rod is fixedly arranged on the inner side of the round hollow sleeve.
In a preferred embodiment, a ventilation pipe is communicated between the polyester fiber layer and the circular hollow sleeve, a bowl-shaped guide opening is formed in one end, close to the circular hollow sleeve, of the ventilation pipe, and the bowl-shaped guide opening and the fan blades are arranged in a one-to-one correspondence mode.
In a preferred embodiment, the ventilation board is fixedly arranged on the inner side of the ventilation pipe, an elastic connecting rope is fixedly connected to one side of the ventilation board, a floating sealing ball is bonded to one end of the elastic connecting rope, and the floating sealing ball is arranged in a sealing mode on the ventilation board.
In a preferred embodiment, one end of the ventilation pipe, which is close to the polyester fiber layer, is communicated with a built-in air bag core, a plurality of air dispersing holes are formed in the outer side of the built-in air bag core, corresponding magnets are bonded in the air dispersing holes of the built-in air bag core, the number of the corresponding magnets is multiple, the corresponding magnets are in magnetic attraction type, and the corresponding magnets are in sealing type with the air dispersing holes of the built-in air bag core in the magnetic attraction state.
The invention has the technical effects and advantages that:
1. according to the invention, the memory metal strips are arranged, when the external temperature is transmitted to the polyester fiber layer to enable the internal temperature of the polyester fiber layer to continuously rise, the memory metal strips are instantaneously deformed and wound on the surface of the positioning cross rod when being heated after exceeding 45 degrees, the movable sealing plugs are pulled to slide in the heat absorption pipes to generate negative pressure, so that liquid in the liquid storage tanks is adsorbed in the heat absorption pipes to flow, heat in the polyester fiber layer is taken away, the temperature rise of the polyester fiber layer is prevented from influencing the LNG gas cylinder, and the temperature protection of the LNG gas cylinder is realized, thereby realizing automatic cooling and removing potential safety hazards;
2. according to the invention, the scroll spring is arranged, when the temperature is lower than 45 degrees, the memory metal strip deforms again, and the scroll spring also bounces after losing the tension of the lengthened connecting rope, so that the movable sealing plug is driven to slide in the heat absorption pipe, and the liquid returns to the liquid storage tank again, thereby forming automatic circulation and achieving the purpose of reciprocating cooling.
3. According to the invention, the built-in air bag core is arranged, the air force generated when the fan blades rotate causes the built-in air bag core to expand, the air dispersing holes of the built-in air bag core are sealed by the corresponding magnets, so that the volume of the built-in air bag core is continuously increased, after the volume reaches the maximum value, the corresponding magnets cannot keep the magnetic attraction state so as to separate from each other, and the air in the built-in air bag core is instantaneously discharged, so that the heat in the polyester fiber layer is driven to blow to the outside, and the heat dispersing effect is further improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the structure of the present invention.
Fig. 3 is an enlarged view of the structure of the portion a of fig. 2 according to the present invention.
Fig. 4 is an enlarged view of the B-section structure of fig. 2 according to the present invention.
Fig. 5 is a cross-sectional view of the gear of the present invention.
Fig. 6 is an enlarged view of the C-section structure of fig. 2 according to the present invention.
Fig. 7 is an enlarged view of the D portion structure of fig. 2 according to the present invention.
Fig. 8 is a schematic view of a partial structure of the present invention.
Fig. 9 is an enlarged view of the E-section structure of fig. 2 according to the present invention.
The reference numerals are: 1. LNG cylinders; 2. aluminized PET layer; 3. a polyester fiber layer; 4. a heat absorbing pipe; 5. positioning the cross bar; 6. a memory metal strip; 7. a movable sealing plug; 8. a drainage tube; 9. a liquid storage tank; 10. a movable slide bar; 11. a central rod; 12. a movable leak-proof plug; 13. a guide cannula; 14. a circular hollow sleeve; 15. lengthening the connecting rope; 16. i-shaped idler wheels; 17. a spiral spring; 18. a horizontal round rod; 19. tooth blocks; 20. a gear; 21. a central shaft; 22. a fan blade; 23. a T-shaped positioning rod; 24. a ventilation pipe; 25. bowl-shaped guide opening; 26. a ventilation board; 27. an elastic connecting rope; 28. a floating sealing ball; 29. a built-in airbag core; 30. a corresponding magnet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: referring to fig. 1-9 of the specification, as shown in fig. 1, the heat insulation material for the LNG cylinder in one embodiment of the invention comprises an LNG cylinder 1, wherein an aluminized PET layer 2 is arranged on the outer side of the LNG cylinder 1, and the aluminized PET layer 2 has good barrier property to light rays and good dampproof, heat-resistant and puncture-resistant performances, so that the LNG cylinder 1 is protected, a polyester fiber layer 3 is bonded on the outer side of the aluminized PET layer 2, and the greatest advantage of the polyester fiber layer 3 is that the wrinkle resistance and shape retention are good, the heat insulation material has high strength and elastic recovery capability, is firm and durable, resists wrinkles and non-sticky, and plays a role in double heat insulation protection when matched with the aluminized PET layer 2;
as shown in fig. 2, the polyester fiber layer 3 has a double-layer structure, double insulation is achieved to external heat by means of double-layer arrangement, meanwhile, the double-layer structure provides a larger space, so that external heat transfer is slowed down, the inside of the polyester fiber layer 3 is hollow, the heat absorbing pipe 4 is fixedly arranged in the polyester fiber layer 3, when the temperature in the polyester fiber layer 3 rises, the heat in the polyester fiber layer 3 is transferred to the heat absorbing pipe 4, thereby the heat absorbing pipe 4 is utilized to absorb the heat, and the memory metal strip 6 is transferred, so that the memory metal strip 6 is heated and deformed, when the liquid in the liquid storage tank 9 flows in the heat absorbing pipe 4, the heat of the heat absorbing pipe 4 is taken away, thereby reducing the heat in the polyester fiber layer 3, the positioning cross rod 5 is fixedly arranged on the inner wall of the heat absorbing pipe 4, the memory metal strip 6 is clamped on the outer side of the positioning cross rod 5, the memory metal strip 6 is positioned by the positioning cross rod 5, the memory metal strip 6 is made of plastic materials, the memory temperature of the memory metal strip 6 is set to be 45 ℃, the temperature of the outside is recommended to be about 45-60 ℃ when the LNG cylinder 1 is used, the memory is set to be 45 ℃ through the memory metal strip 6, when heat is transmitted to the surface of the polyester fiber layer 3, the whole temperature of the polyester fiber layer 3 is increased, a series of cooling measures are carried out through deformation of the memory metal strip 6, the LNG cylinder 1 is insulated, safety accidents caused by the LNG cylinder 1 encountering high temperature are prevented, the memory metal strip 6 is arranged in a straight shape in a normal state, the memory metal strip 6 can seal a drainage pipe 8 by utilizing a movable sealing plug 7 in a normal state through the straight arrangement of the memory metal strip 6, the liquid in a liquid storage tank 9 is prevented from flowing out, the memory metal strip 6 can be automatically wound on the outer side of a positioning cross rod 5 after being heated, the heat absorption tube 4 is prevented from being blocked when the memory metal strip 6 is contracted by utilizing the limited space utilization of the heat absorption tube 4 by winding the memory metal strip 6 on the outer side of the positioning cross rod 5, and the movable sealing plug 7 is pulled to slide in the heat absorption tube 4 by utilizing the winding of the memory metal strip 6;
as shown in fig. 3, one end fixedly connected with movable sealing plug 7 of memory metal strip 6, movable sealing plug 7 is sliding connection form setting with heat absorption pipe 4, after memory metal strip 6 is heated to warp, will pull movable sealing plug 7 and slide in heat absorption pipe 4, the one end intercommunication of heat absorption pipe 4 is equipped with drainage pipe 8, the top intercommunication of drainage pipe 8 is equipped with liquid storage pot 9, the inside of liquid storage pot 9 is equipped with liquid, liquid can be water or various refrigerant, the inboard sliding connection of drainage pipe 8 has movable slide bar 10, the central point department of movable slide bar 10 fixed mounting has center pole 11, the bottom fixed mounting of center pole 11 has movable leak protection stopper 12, after movable slide bar 10 slides to the bottom of drainage pipe 8, will have the clearance between movable leak protection stopper 12 and the drainage pipe 8, will make the liquid outflow in the liquid storage pot 9, simultaneously form negative pressure at movable sealing plug 7 gliding in-process, make the liquid in the liquid storage pot 9 be absorbed to the heat absorption pipe 4, the bottom of movable leak protection stopper 12 is semicircle type setting, through the setting, when movable slide bar 7 and movable slide bar 10 slide to the bottom, when movable slide bar 10 and movable slide bar 10 are contacted with movable sealing plug 12, the movable leak protection stopper 12, when the movable leak protection stopper is contacted with movable sealing plug 10, the movable leak protection stopper is contacted with movable sealing plug 12, the movable sealing plug is in the setting up, and the movable leak protection plug 12 is contacted with movable leak protection plug 12.
According to the technical scheme, when the anti-leakage device is actually used, when the anti-leakage device works outdoors in summer, external heat is transmitted to the surface of the polyester fiber layer 3 and permeates into the polyester fiber layer 3, when the temperature exceeds 45 degrees, the memory metal strip 6 is instantaneously deformed and wound on the surface of the positioning cross rod 5 when being heated, the memory metal strip 6 pulls the movable sealing plug 7 to slide in the heat absorption tube 4 in the winding process, so that the movable sealing plug 7 and the movable anti-leakage plug 12 lose contact, the support of the movable sealing plug 7 is lost, the gravity of liquid enables the movable anti-leakage plug 12 to slide downwards, meanwhile, the movable sliding rod 10 slides to the bottom end of the drain tube 8 to limit the movable anti-leakage plug 12, a gap is formed between the movable anti-leakage plug 12 and the drain tube 8, so that the drain tube 8 is not sealed, liquid in the liquid storage tank 9 flows into the heat absorption tube 4 under the influence of gravity of the self and the negative pressure formed by the movable sealing plug 7, the liquid in the movable sealing plug 7 is taken away in the flowing process, and when the temperature in the polyester fiber layer 3 is lower than 45 degrees, the movable sealing plug 7 is pushed to the drain tube 7 again, and the liquid is in the state when the temperature is lower than the temperature of the movable sealing plug 7 and the movable sealing plug 7 is pushed back to the original position, and the drain tube 12 is in contact, and the original position is restored to the movable sealing plug 12.
Example 2: as shown in fig. 3, one side of the polyester fiber layer 3 is inserted with a guide insertion pipe 13, one end of the guide insertion pipe 13 is fixedly connected with a round hollow sleeve 14, the round hollow sleeve 14 is sleeved on the outer side of the LNG cylinder 1, one side of the movable sealing plug 7 is fixedly connected with a lengthening connecting rope 15, the lengthening connecting rope 15 and the guide insertion pipe 13 are arranged in a sliding connection mode, as shown in fig. 4, the outer side of the lengthening connecting rope 15 is wound with an I-shaped roller 16, a volute spring 17 is arranged in the I-shaped roller 16, and one end of the lengthening connecting rope 15 and the volute spring 17 are arranged in a clamping mode;
a transverse round rod 18 is fixedly arranged on one side of the round hollow sleeve 14, an I-shaped roller 16 is rotatably connected to the outer side of the transverse round rod 18, and a tooth block 19 is arranged on one side of the I-shaped roller 16.
It should be noted that, when the present invention is actually used, the movable sealing plug 7 pulls the extension connecting rope 15 to extend when sliding, so as to drive the i-shaped roller 16 to rotate, the spiral spring 17 is gradually contracted when the i-shaped roller 16 rotates, when the temperature in the polyester fiber layer 3 is lower than 45 degrees, and the memory metal strip 6 deforms again, after the tension of the extension connecting rope 15 is lost, the spiral spring 17 automatically rebounds, so that the i-shaped roller 16 rotates to wind the extension connecting rope 15, and further pulls the movable sealing plug 7 to slide, and the shortage of power when the memory metal strip 6 deforms is prevented, and the memory metal strip 6 is blocked at the inner side of the heat absorption tube 4.
Example 3: as shown in fig. 6, the outer side of the tooth block 19 is meshed with a gear 20, when the i-shaped roller 16 rotates, the gear 20 is driven to rotate by the tooth block 19, a central shaft 21 is fixedly arranged on one side of the gear 20, fan blades 22 are fixedly arranged on the outer side of the central shaft 21, and when the gear 20 rotates, the fan blades 22 are driven to rotate, so that wind power is generated;
as shown in fig. 6, the inner side of the central shaft 21 is rotatably connected with a T-shaped positioning rod 23, the T-shaped positioning rod 23 is fixedly arranged on the inner side of the circular hollow sleeve 14, as shown in fig. 7, a ventilation pipe 24 is communicated between the polyester fiber layer 3 and the circular hollow sleeve 14, one end of the ventilation pipe 24, which is close to the circular hollow sleeve 14, is provided with a bowl-shaped guide opening 25, the bowl-shaped guide opening 25 and the fan blades 22 are arranged in a one-to-one correspondence, the wind generated by rotation of the fan blades 22 is collected by the bowl-shaped guide opening 25 and then discharged into the ventilation pipe 24, a ventilation plate 26 is fixedly arranged on the inner side of the ventilation plate 26, one side of the ventilation plate 26 is fixedly connected with an elastic connecting rope 27, one end of the elastic connecting rope 27 is adhered with a floating sealing ball 28, the ventilation plate 26 is arranged in a sealing shape, when the wind is contacted with the floating sealing ball 28, so that the wind enters into a built-in air bag core 29 through the ventilation plate 26, when the wind is ended, the wind is bounces by utilizing the elastic connecting rope 27, the floating sealing ball 28 is pulled to the plate 26 to reseal, the wind is prevented from flowing out of the built-in the air bag 26, the corresponding air bag 29 is provided with a plurality of air holes 30 corresponding to the air bags 29, and the magnet 30 are arranged in the magnetic core 30, and the number of the magnet core is correspondingly arranged in the air bag is arranged in the air bag 30, and the air bag is correspondingly arranged in the air bag 30, and the air bag is correspondingly in the air bag 30.
It should be noted that, when the present invention is actually used, the i-shaped roller 16 drives the gear 20 to rotate during rotation, then drives the fan blade 22 to rotate, so that the wind force generated by the rotation of the fan blade 22 is collected by the bowl-shaped guide opening 25 and is discharged into the ventilation pipe 24, when the wind force contacts with the floating sealing ball 28, the floating sealing ball 28 is blown away, so that the wind enters the built-in air bag core 29 through the ventilation plate 26, and thus the built-in air bag core 29 begins to expand, the volume of the built-in air bag core 29 gradually increases, when the maximum value is reached, the plurality of corresponding magnets 30 are separated, the magnetic attraction state is not maintained, and thus the air in the built-in air bag core 29 is discharged into the polyester fiber layer 3 through the air dispersing holes, so that the heat in the polyester fiber layer 3 is blown to the outside, the temperature of the polyester fiber layer 3 is reduced, the volume is reduced, the plurality of corresponding magnets 30 are re-adsorbed again, and the sealing shape is formed again, and when the wind force is finished, the floating sealing ball 28 is pulled to flow out the plate 26 again, so that the air bag in the built-in is prevented from rebounding.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A heat preservation material for LNG gas cylinder, includes LNG gas cylinder (1), its characterized in that: an aluminized PET layer (2) is arranged on the outer side of the LNG gas cylinder (1), and a polyester fiber layer (3) is bonded on the outer side of the aluminized PET layer (2);
the polyester fiber layer (3) is of a double-layer structure, the inside of the polyester fiber layer (3) is hollow, a heat absorption pipe (4) is fixedly arranged in the polyester fiber layer (3), a positioning cross rod (5) is fixedly arranged on the inner wall of the heat absorption pipe (4), a memory metal strip (6) is clamped on the outer side of the positioning cross rod (5), the memory metal strip (6) is made of plastic materials, the memory temperature of the memory metal strip (6) is set to be 45 ℃, the memory metal strip (6) is arranged in a straight shape in a normal state, and the memory metal strip (6) can be automatically wound on the outer side of the positioning cross rod (5) after being heated;
the utility model discloses a memory metal strip, including memory metal strip, movable sealing plug (7), heat absorption pipe (4) and sealing plug (12) are fixed connection's one end fixedly connected with movable sealing plug (7), movable sealing plug (7) are sliding connection form setting with heat absorption pipe (4), the one end intercommunication of heat absorption pipe (4) is equipped with drainage pipe (8), the top intercommunication of drainage pipe (8) is equipped with liquid storage pot (9), the inside of liquid storage pot (9) is equipped with liquid, the inboard sliding connection of drainage pipe (8) has movable slide bar (10), the central point department of movable slide bar (10) fixed mounting has center pole (11), the bottom fixed mounting of center pole (11) has movable leak protection plug (12), after movable slide bar (10) slides the bottom of drainage pipe (8), will have the clearance between movable leak protection plug (12) and the drainage pipe (8), the bottom of movable leak protection plug (12) is semicircle type setting, movable leak protection plug (12) are laminating form setting with movable sealing plug (7).
2. The thermal insulation material for LNG cylinders according to claim 1, wherein: one side of polyester fiber layer (3) is pegged graft and is had direction intubate (13), the one end fixedly connected with circular cavity cover (14) of direction intubate (13), one side fixedly connected with extension connecting rope (15) of movable sealing plug (7), extension connecting rope (15) are sliding connection form setting with direction intubate (13).
3. A thermal insulation material for LNG cylinders according to claim 2, characterized in that: an I-shaped roller (16) is connected to the outer side of the lengthened connecting rope (15) in a surrounding mode, a scroll spring (17) is arranged in the I-shaped roller (16), and one end of the lengthened connecting rope (15) is arranged in a clamping mode with the scroll spring (17);
one side of the round hollow sleeve (14) is fixedly provided with a transverse round rod (18), the I-shaped roller (16) is rotationally connected to the outer side of the transverse round rod (18), and one side of the I-shaped roller (16) is provided with a tooth block (19).
4. A thermal insulation material for LNG cylinders according to claim 3, characterized in that: the outer side of the tooth block (19) is meshed with a gear (20), one side of the gear (20) is fixedly provided with a central shaft (21), and the outer side of the central shaft (21) is fixedly provided with a fan blade (22);
the inner side of the central shaft (21) is rotatably connected with a T-shaped positioning rod (23), and the T-shaped positioning rod (23) is fixedly arranged on the inner side of the round hollow sleeve (14).
5. The thermal insulation material for LNG cylinders according to claim 4, wherein: the novel plastic fan is characterized in that a ventilation pipe (24) is communicated between the polyester fiber layer (3) and the circular hollow sleeve (14), a bowl-shaped guide opening (25) is formed in one end, close to the circular hollow sleeve (14), of the ventilation pipe (24), and the bowl-shaped guide openings (25) are arranged in a one-to-one correspondence mode with the fan blades (22).
6. The thermal insulation material for LNG cylinders according to claim 5, wherein: the inside fixed mounting of ventilation pipe (24) has ventilation board (26), one side fixedly connected with elastic connection rope (27) of ventilation board (26), the one end bonding of elastic connection rope (27) has floating seal ball (28), floating seal ball (28) are sealed form setting to ventilation board (26).
7. The thermal insulation material for LNG cylinders according to claim 6, wherein: the one end intercommunication that ventilation pipe (24) is close to polyester fiber layer (3) is equipped with built-in gasbag core (29), a plurality of air vents have been seted up in the outside of built-in gasbag core (29), the bonding has corresponding magnet (30) in the air vent of built-in gasbag core (29), the quantity of corresponding magnet (30) sets up to a plurality ofly, and a plurality of corresponding magnet (30) are magnetism and inhale the form setting, a plurality of corresponding magnet (30) are sealed form setting to the air vent of built-in gasbag core (29) under magnetism inhale the state.
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| CN202211672247.9A CN116123439B (en) | 2022-12-26 | 2022-12-26 | Thermal insulation material for LNG (liquefied Natural gas) cylinder |
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| CN202211672247.9A CN116123439B (en) | 2022-12-26 | 2022-12-26 | Thermal insulation material for LNG (liquefied Natural gas) cylinder |
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| CN116123439B CN116123439B (en) | 2023-10-03 |
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Also Published As
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| CN116123439B (en) | 2023-10-03 |
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