CN217004024U - Liquid fuel storage device - Google Patents

Abstract

The utility model discloses a liquid fuel storage device, comprising: shell, inner bag, adiabatic piece and cooling module, the inner bag is established in the shell, and the inner bag includes inner bag head, inner bag barrel and inner bag tail head, and inner bag head and inner bag tail head are connected respectively at the axial both ends of inner bag barrel, and adiabatic piece cladding is on the surface of inner bag barrel, and cooling module wraps outside adiabatic piece. According to the liquid fuel storage device, the inner container is arranged in the shell, the heat insulating part is coated on the inner container barrel, and the cooling assembly is coated outside the heat insulating part, so that the heat leakage quantity of the liquid fuel storage device is greatly reduced, and the heat insulating performance of the liquid fuel storage device is improved.

Description

Liquid fuel storage device

Technical Field

The utility model relates to the technical field of liquid fuel storage devices, in particular to a liquid fuel storage device.

Background

In the related art, the liquid fuel storage device can be used for storing liquid fuel, heat conduction and heat radiation exist on the liquid fuel storage device, in order to store the liquid fuel, the liquid fuel storage device adopts a high-vacuum multi-layer heat insulation structure, but the vacuum heat insulation structure can leak heat, the heat leakage accounts for a large part of the total heat leakage of the liquid fuel storage device, the medium in the liquid fuel storage device cannot be stored for a long time due to the large heat leakage, the extra heat conduction and heat leakage can be increased by simply increasing the number of layers and the thickness of the heat insulation material, the overall volume and weight can be increased, and in addition, the heat insulation effect is not obviously increased after the number of layers of the heat insulation material is increased to a certain degree.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a liquid fuel storage device which has the advantage of good heat insulation effect.

A liquid fuel storage device according to an embodiment of the present invention includes: a housing; the inner container is arranged in the shell and comprises an inner container head end socket, an inner container barrel and an inner container tail end socket, and the inner container head end socket and the inner container tail end socket are respectively connected to the two axial ends of the inner container barrel; the heat insulation piece is coated on the outer surface of the liner cylinder; a cooling assembly wrapped around the insulation.

According to the liquid fuel storage device provided by the embodiment of the utility model, the inner container is arranged in the shell, the inner container cylinder is coated with the heat insulating part, and the cooling assembly is coated outside the heat insulating part, so that the heat leakage of the liquid fuel storage device is greatly reduced, and the heat insulating performance of the liquid fuel storage device is improved.

According to some embodiments of the utility model, the cooling assembly comprises a cold plate and a cold pipe connected to the cold plate.

In some embodiments of the present invention, the heat insulation member includes a heat insulation lower section covering the liner cylinder, the cold pipes are wound around the heat insulation lower section, and the cold plate is connected between two adjacent circles of the cold pipes.

In some embodiments of the present invention, the thermal insulation member further includes a thermal insulation head-sealing section covering the liner head-sealing head, and a thermal insulation tail-sealing section covering the liner tail-sealing head, wherein one side of the circle of the cold pipes close to the thermal insulation tail-sealing section is connected with the cold plate, and one side of the circle of the cold pipes close to the thermal insulation head-sealing section is connected with the cold plate.

In some embodiments of the utility model, the cold plate is formed as a ring plate wrapped around the thermally insulated lower section.

In some embodiments of the present invention, the inner container is provided with an inlet, and the liquid fuel storage device further includes: one end of the air-entraining pipe is communicated with the inlet, the other end of the air-entraining pipe is communicated with one end of the cold pipe, and the other end of the cold pipe extends out of the shell.

According to some embodiments of the utility model, the liquid fuel storage device further comprises: a thermally insulated upper section wrapped around the cooling assembly.

According to some embodiments of the utility model, the shell comprises a shell head end socket, a shell barrel and a shell tail end socket, the shell head end socket and the shell tail end socket are respectively connected with two axial ends of the shell barrel, the shell head end socket is connected with the liner head end socket through a first supporting piece, and the shell tail end socket is connected with the liner tail end socket through a second supporting piece.

In some embodiments of the present invention, the first supporting member is a supporting rod structure, and two ends of the first supporting member are respectively connected to the casing head end socket and the liner head end socket.

In some embodiments of the utility model, the second support comprises: the outer circumferential wall of the outer ring support is connected with the inner circumferential wall of the shell tail end socket; the outer circumferential wall of the inner ring support is connected with the inner circumferential wall of the outer ring support; the periphery wall of back shaft with interior rampart's internal perisporium is connected, the one end of back shaft with inner bag tail head is connected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of an inner bladder and cooling assembly of a liquid fuel storage device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a liquid fuel storage device according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Reference numerals:

100. a liquid fuel storage device;

1. a housing; 11. a shell head end enclosure; 12. a housing cylinder; 13. a shell tail end socket;

2. an inner container; 21. the head end of the inner container; 22. an inner container barrel; 23. the tail end of the liner is sealed; 24. an inlet;

3. an insulating member; 31. a thermally insulating head seal section; 32. a heat-insulating lower section; 33. a thermally insulating tail seal head section;

4. a cooling assembly; 41. a cold plate; 42. cooling the pipe;

5. a bleed pipe;

6. an insulated upper section;

7. a first support; 71. a first support elongated tube; 72. a first support stub; 73. a first support connection cover;

8. a second support member; 81. an outer ring support; 82. an inner ring support; 83. and supporting the shaft.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A liquid fuel storage apparatus 100 according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 and 2, a liquid fuel storage apparatus 100 according to an embodiment of the present invention includes: the outer shell 1, the inner container 2, the heat insulation member 3 and the cooling assembly 4.

As shown in fig. 2, the liner 2 is arranged in the housing 1, the liner 2 includes a liner head end enclosure 21, a liner barrel 22 and a liner tail end enclosure 23, and the liner head end enclosure 21 and the liner tail end enclosure 23 are respectively connected to two axial ends of the liner barrel 22. Specifically, a containing space is formed in the liner 2 for storing media, and a high vacuum chamber is formed between the shell 1 and the liner 2. The liquid fuel storage device 100 may be a liquid hydrogen storage cylinder for storing low temperature.

As shown in fig. 2, the heat insulator 3 is coated on the outer surface of the liner cylinder 22. The heat insulating member 3 may have a multi-layer structure of a reflective material and a heat insulating material.

In the prior art, because the liquid fuel storage device has heat conduction and heat radiation, and when the medium stored in the liquid fuel storage device is liquid hydrogen, the storage temperature of the liquid hydrogen is very low, the temperature difference between the inside of the liquid fuel storage device and the external environment is very large, and therefore the heat leakage quantity of the liquid fuel storage device is larger than that of other media, such as liquid oxygen, liquid nitrogen and the like. In the present application, the liquid fuel storage apparatus 100 can improve the heat insulation performance of the liquid fuel storage apparatus 100 by vacuum heat insulation by coating the outer surface of the inner container 2 with the heat insulator 3.

As shown in fig. 1 and 2, the cooling member 4 is wrapped around the heat insulating member 3. Since the cooling assembly 4 has a cooling effect on the outer surface of the heat insulating member 3, the temperature of the outer surface of the heat insulating member 3 is reduced, so that the temperature difference between the outer surface of the heat insulating member 3 and the inner surface of the heat insulating member 3 is reduced, the heat leakage amount of the liquid fuel storage apparatus 100 is greatly reduced, the heat insulating performance of the liquid fuel storage apparatus 100 is improved, and the liquid fuel storage apparatus 100 can better store low-temperature media such as liquid hydrogen.

According to the liquid fuel storage device 100 of the embodiment of the utility model, the inner container 2 is arranged in the shell 1, the inner container cylinder 22 is coated with the heat insulating member 3, and the cooling assembly 4 is coated outside the heat insulating member 3, so that the heat leakage of the liquid fuel storage device 100 is greatly reduced, and the heat insulating performance of the liquid fuel storage device 100 is improved.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the cooling assembly 4 includes a cold plate 41 and a cold tube 42 coupled to the cold plate 41. This arrangement can increase the cooling area of the cooling unit 4, improve the cooling effect of the cooling unit 4, and further improve the heat insulating performance of the liquid fuel storage apparatus 100. The cooling pipe 42 may be filled with a cooling medium.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the thermal insulation member 3 includes a thermal insulation lower section 32 covering the liner cylinder 22, the cold pipes 42 are wound around the thermal insulation lower section 32, and the cold plate 41 is connected between two adjacent circles of the cold pipes 42. The arrangement can transfer the temperature of the cold pipe 42 to the cold plate 41, thereby increasing the cooling area of the cooling module 4 and further improving the cooling effect of the cooling module 4.

The cold plate 41 and the cold tube 42 may be separated or integrated, and when the cold plate 41 and the cold tube 42 are integrated, stable connection between the cold plate 41 and the cold tube 42 can be ensured, and redundant assembling parts and processes can be omitted; when the cold plate 41 and the cold tube 42 are separate components, the cold tube 42 and the cold plate 41 may be connected together by welding or the like, and the connection is simple, and the cold tube 42 may be one or multiple. When there are a plurality of cold pipes 42, a plurality of cold pipes 42 can be connected by providing a connecting pipe.

For example, in the embodiment shown in fig. 1 and 2, the cold tubes 42 are wound around the outer surface of the lower insulating segment 32 in one turn, and the cold plates 41 are connected between two adjacent turns of the cold tubes 42.

According to some embodiments of the present invention, as shown in fig. 1 and fig. 2, the thermal insulation member 3 further includes a thermal insulation head-sealing section 31 covering the liner head-sealing head 21, a thermal insulation tail-sealing section 33 covering the liner tail-sealing head 23, a cold plate 41 is connected to a side of a circle of cold pipes 42 close to the thermal insulation tail-sealing section 33, and a cold plate 41 is connected to a side of a circle of cold pipes 42 close to the thermal insulation head-sealing section 31, close to the thermal insulation head-sealing section 31. This arrangement provides a larger cooling area for the cold plate 41, which may better carry away the heat from the insulated lower section 32, and further improve the cooling effect of the cooling assembly 4.

For example, in the embodiment shown in fig. 1 and 2, a cold plate 41 is attached to the right side of a ring of cold tubes 42 adjacent the insulated tail-end section 33 and a cold plate 41 is attached to the left side of a ring of cold tubes 42 adjacent the insulated head-end section 31.

According to some embodiments of the present invention, as shown in fig. 1 and 2, the cold plate 41 is formed as a ring plate that wraps around the insulated lower section 32. This arrangement can improve the cooling effect of the cooling module 4 even more. Wherein the cold pipe 42 may be formed as a collar wrapped around the insulated lower end 32.

For example, in the embodiment shown in fig. 1 and 2, the cold plates 41 are formed as helical annular sheets wrapped around the insulated lower section 32, with the cold plates 41 being located between two adjacent turns of the cold pipe 42 and connected to the cold pipe 42.

According to some embodiments of the present invention, as shown in fig. 1-3, the inner container 2 is provided with an inlet 24, and the liquid fuel storage apparatus 100 further includes: and one end of the bleed air pipe 5 is communicated with the inlet 24, the other end of the bleed air pipe 5 is communicated with one end of the cold pipe 42, and the other end of the cold pipe 42 extends out of the shell 1. Specifically, cryogenic gas may be generated or stored in the liquid fuel storage device 100, the cryogenic gas may enter the cold pipe 42 through the bleed air pipe 5, the cold pipe 42 is cooled by the cryogenic gas, the temperature of the cold pipe 42 is reduced, and the cold pipe 42 conducts cold energy to the cold plate 41. Because the cold plate 41 and the cold pipe 42 are both wound on the heat insulation lower section 32, the cold plate 41 and the cold pipe 42 cool the outer surface of the heat insulation lower section 32, and the temperature of the outer surface of the heat insulation lower section 32 is reduced, so that the temperature difference between the outer surface of the heat insulation lower section 32 and the inner surface of the heat insulation lower section 32 is reduced, and the heat leakage quantity is greatly reduced. The other end of the cold pipe 42 extends out of the housing 1, and the heated gas can be exhausted through the exhaust gas, so that the low-temperature gas can continuously enter the bleed air pipe 5 through the inlet 24 and then enter the cold pipe 42, and the cold pipe 42 and the cold plate 41 are always in a low-temperature state. When the medium stored in the liquid fuel storage apparatus 100 is liquid hydrogen, at this time, low-temperature hydrogen gas may be generated in the liquid fuel storage apparatus 100, and the low-temperature hydrogen gas may be low-temperature hydrogen gas, and the low-temperature hydrogen gas may enter the cold pipe 42 through the bleed air pipe 5.

According to some embodiments of the present invention, as shown in fig. 2 and 3, the liquid fuel storage apparatus 100 further includes: and the heat-insulating upper section 6 is wrapped outside the cooling assembly 4. Through wrapping up adiabatic upper segment 6 outside cooling module 4, can form the heat preservation between messenger's adiabatic upper segment 6 and adiabatic hypomere 32 to make cooling module 4's cooling effect better, can reduce the heat leakage better. Wherein, the heat insulation upper section 6 can be a multi-layer combined structure adopting reflective materials and heat insulation materials.

According to some embodiments of the present invention, as shown in fig. 2, the casing 1 includes a casing head 11, a casing barrel 12 and a casing tail 13, the casing head 11 and the casing tail 13 are respectively connected to two axial ends of the casing barrel 12, the casing head 11 is connected to the liner head 21 through a first support 7, and the casing tail 13 is connected to the liner tail 23 through a second support 8. The structural strength of the liquid fuel storage device 100 can be improved by providing the first support member 7 and the second support member 8, and a space is reserved for thermal expansion and cold contraction of the inner container 2.

For example, in the embodiment shown in fig. 2, the first support member 7 includes a first long support pipe 71, a first short support pipe 72, and a first connection support cover 73, the first long support pipe 71 is located inside the first short support pipe 72, the first short support pipe 72 and the first long support pipe 71 are fixedly connected by the first connection support cover 73, the first long support pipe 71 is connected to the shell head 11, and the first short support pipe 72 is connected to the inner container 2 and extends into the heat-insulating head section 31. This arrangement provides support between the outer casing 1 and the inner container 2, increasing the structural strength of the liquid fuel storage apparatus 100.

According to some embodiments of the utility model, as shown in fig. 2, the second support 8 comprises: outer loop support 81, inner loop support 82 and support shaft 83, the periphery wall of outer loop support 81 and the internal perisporium of shell tail head 13 are connected, the periphery wall of inner loop support 82 and the internal perisporium of outer loop support 81 are connected, the periphery wall of support shaft 83 and the internal perisporium of inner loop support 82 are connected, the one end and the inner bag tail head 23 of support shaft 83 are connected. Specifically, the outer ring support 81 and the inner ring support 82 are both ring-shaped structures. The arrangement is convenient for installation and also reserves space for expansion with heat and contraction with cold of the inner container 2.

Alternatively, the inner ring support 82 may be made of glass fiber reinforced plastic, which is light and strong, and is made of a tough material, and has elasticity and plasticity, so that deformation of the second support 8 caused by severe working conditions can be alleviated, and the second support structure can more stably support the inner container 2 and the outer casing 1 of the liquid fuel storage device 100.

For example, in the embodiment shown in fig. 2, the second support member 8 is a ring-shaped structure with a "T" shaped cross section, the outer circumferential wall of the outer ring support member 81 is connected to the inner circumferential wall of the casing tail end enclosure 13, the outer circumferential wall of the inner ring support member 82 is connected to the inner circumferential wall of the outer ring support member 81, the outer circumferential wall of the right end of the support shaft 83 is connected to the inner circumferential wall of the inner ring support member 82, and the left end of the support shaft 83 is connected to the liner tail end enclosure 23 and extends into the liner 2.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A liquid fuel storage device (100), comprising:

a housing (1);

the inner container (2) is arranged in the shell (1) and comprises an inner container head end socket (21), an inner container barrel (22) and an inner container tail end socket (23), and the inner container head end socket (21) and the inner container tail end socket (23) are respectively connected to the two axial ends of the inner container barrel (22);

the heat insulation piece (3) is coated on the outer surface of the liner cylinder (22);

a cooling assembly (4), the cooling assembly (4) being wrapped around the insulation (3).

2. The liquid fuel storage device (100) according to claim 1, wherein the cooling assembly (4) comprises a cold plate (41) and a cold tube (42) connected to the cold plate (41).

3. The liquid fuel storage device (100) of claim 2, wherein the thermal insulation (3) comprises a thermally insulated lower section (32) that encases the liner cylinder (22), the cold tubes (42) are wrapped around the thermally insulated lower section (32), and the cold plates (41) are connected between two adjacent turns of the cold tubes (42).

4. The liquid fuel storage device (100) according to claim 3, wherein the thermal insulation member (3) further comprises a thermal insulation head section (31) covering the liner head (21) and a thermal insulation tail section (33) covering the liner tail head (23), wherein the cold plate (41) is connected to one side, close to the thermal insulation tail section (33), of the cold pipe (42) in the circle close to the thermal insulation tail section (33), and the cold plate (41) is connected to one side, close to the thermal insulation head section (31), of the cold pipe (42) in the circle close to the thermal insulation head section (31).

5. The liquid fuel storage device (100) according to claim 3 or 4, wherein the cold plate (41) is formed as a ring plate wrapped around the thermally insulated lower section (32).

6. The liquid fuel storage device (100) of claim 2, wherein the inner bladder (2) is provided with an inlet (24), the liquid fuel storage device (100) further comprising:

bleed pipe (5), the one end of bleed pipe (5) with entry (24) intercommunication, the other end of bleed pipe (5) with the one end intercommunication of cold pipe (42), the other end of cold pipe (42) stretches out shell (1).

7. The liquid fuel storage device (100) of claim 1, further comprising:

an insulated upper section (6), the insulated upper section (6) wrapping around the cooling assembly (4).

8. The liquid fuel storage device (100) according to claim 1, wherein the casing (1) comprises a casing head end enclosure (11), a casing barrel (12) and a casing tail end enclosure (13), the casing head end enclosure (11) and the casing tail end enclosure (13) are respectively connected with two axial ends of the casing barrel (12), the casing head end enclosure (11) is connected with the liner head end enclosure (21) through a first support member (7), and the casing tail end enclosure (13) is connected with the liner tail end enclosure (23) through a second support member (8).

9. The liquid fuel storage device (100) according to claim 8, wherein the first support member (7) is a support rod structure and two ends of the support rod structure are respectively connected with the shell head (11) and the liner head (21).

10. The liquid fuel storage device (100) of claim 8, wherein the second support (8) comprises:

the outer circumferential wall of the outer ring support (81) is connected with the inner circumferential wall of the shell tail end socket (13);

an inner ring support (82), an outer circumferential wall of the inner ring support (82) being connected with an inner circumferential wall of the outer ring support (81);

the outer peripheral wall of support shaft (83) with the internal perisporium wall of inner ring support piece (82) is connected, the one end of support shaft (83) with inner bag tail head (23) are connected.

Images