Vehicle-mounted LNG cylinder multi-layer heat insulation cooling box

Abstract

The utility model provides a vehicle-mounted liquefied natural gas (LNG) cylinder multi-layer heat insulation cooling box, which relates to the technical field of LNG equipment and comprises a first box shell and a second box shell, and cylinder fixing mechanisms are arranged in the first box shell and the second box shell. Gas cylinder fixing mechanisms in the first box shell and the second box shell are used for fixing the two ends of an LNG gas cylinder body, four sets of first mounting cavities are arranged in an annular array, four sets of second mounting cavities are arranged in an annular array, first heat insulation cotton is arranged in the four sets of first mounting cavities, and second heat insulation cotton is arranged in the four sets of second mounting cavities; the exhaust mechanism can effectively blow away and discharge running heat conducted from a vehicle from the top positions in the first box shell and the second box shell, and the first heat insulation cotton arranged in the first installation cavity and the second heat insulation cotton arranged in the second installation cavity enable the first box shell and the second box shell to have multi-layer heat insulation performance. And the problem of cooling failure caused by damage of a single heat insulation layer is avoided.

Description

Technical Field

[0001] This utility model relates to the field of LNG equipment technology, and in particular to a multi-layer heat insulation and cooling box for vehicle-mounted LNG cylinders. Background Technology

[0002] LNG is the abbreviation for Liquefied Natural Gas. Natural gas is a combustible gas naturally extracted from gas fields, primarily composed of methane. LNG is produced by cooling gaseous natural gas at atmospheric pressure to -162°C, causing it to condense into a liquid. Liquefaction of natural gas significantly saves storage and transportation space and offers advantages such as high calorific value and superior performance. LNG vehicles are a new generation of natural gas vehicles that use cryogenic liquefied natural gas as fuel. Their key advantages include LNG's high energy density, resulting in a long driving range of over 400 km, offering significant economic benefits compared to vehicles using diesel or gasoline.

[0003] Currently, most LNG cylinders installed on heavy vehicles lack a cooling box, resulting in exposed installation. This leads to excessively high surface temperatures, affecting the normal operation of the LNG cylinders and posing safety hazards. Therefore, this invention proposes a multi-layer insulated cooling box for vehicle-mounted LNG cylinders to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the aforementioned issues, the purpose of this invention is to provide a multi-layer heat insulation and cooling box for vehicle-mounted LNG cylinders. The exhaust mechanism can effectively dissipate the operating heat conducted from the vehicle from the top of the first and second housings. The first insulation cotton installed in the first mounting chamber and the second insulation cotton installed in the second mounting chamber provide multi-layer heat insulation for the first and second housings, thus avoiding the cooling failure problem caused by the damage of a single insulation layer.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The vehicle-mounted LNG cylinder multilayer heat insulation cooling box comprises a first box shell and a second box shell, the first box shell and the second box shell are internally provided with cylinder fixing mechanisms, the cylinder fixing mechanisms are at least provided with two groups, the first box shell and the second box shell are provided with air exhaust mechanisms at the top, the cylinder fixing mechanisms in the first box shell and the second box shell are used for fixing two ends of the LNG cylinder body respectively, the first box shell wall and the second box shell wall are hollow structures, the first box shell wall and the second box shell wall are internally provided with first installation cavities respectively, the first installation cavities are arranged in an annular array and are provided with four groups, the first box shell wall and the second box shell wall outside the four groups of first installation cavities are internally provided with second installation cavities respectively, the second installation cavities are arranged in an annular array and are provided with four groups, the four groups of first installation cavities are internally provided with first heat insulation cotton, and the four groups of second installation cavities are internally provided with second heat insulation cotton.

[0007] Further improvements are that the cylinder fixing mechanism comprises a first air cylinder, a second air cylinder, a first arc-shaped clamping plate and a second arc-shaped clamping plate, the first air cylinder and the second air cylinder are mounted on the outer walls of the first box shell and the second box shell, and the output ends of the first air cylinder and the second air cylinder are respectively provided with the first arc-shaped clamping plate and the second arc-shaped clamping plate.

[0008] Further improvements are that the first arc-shaped clamping plate and the second arc-shaped clamping plate are provided with fixing plates on the two sides, and the fixing plates on the same side are connected through locking bolts.

[0009] Further improvements are that the air exhaust mechanism comprises a shell, an air exhaust fan and a filter screen, the shell is internally provided with the air exhaust fan, and the top of the air exhaust fan is provided with the filter screen.

[0010] Further improvements are that one end of the first box shell is of an open structure, and the other end of the first box shell is provided with a circular end plate.

[0011] Further improvements are that one end of the second box shell is of an open structure, and the other end of the first box shell is provided with a ring plate.

[0012] The vehicle-mounted LNG cylinder multilayer heat insulation cooling box has the advantages that the cooling box is composed of the first box shell and the second box shell, can be conveniently assembled outside the LNG cylinder body, the air exhaust mechanism can effectively blow and discharge the operating heat conducted from the vehicle from the top position inside the first box shell and the second box shell, the first heat insulation cotton arranged in the first installation cavity and the second heat insulation cotton arranged in the second installation cavity enable the first box shell and the second box shell to have multilayer heat insulation performance, and the cooling failure problem caused by damage of a single heat insulation layer is avoided.

[0013] The first heat insulation cotton and the second heat insulation cotton are both provided with four groups, are independently arranged and can be conveniently replaced, and the cost consumption problem caused by overall replacement is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure perspective view of the utility model;

[0015] Figure 2 It is a structure perspective view of the utility model after the LNG cylinder body is assembled;

[0016] Figure 3 It is a structure split schematic view of the utility model exhaust mechanism;

[0017] Figure 4 It is a structure perspective view of the utility model cylinder fixing mechanism;

[0018] Figure 5 It is a structure perspective view of the utility model after the first box shell and the second box shell are separated;

[0019] Figure 6 It is a structure perspective view of the utility model first heat insulation cotton array installation structure;

[0020] Figure 7 It is a structure perspective view of the utility model second heat insulation cotton array installation structure.

[0021] Wherein: 1, the first box shell;2, the second box shell;3, the cylinder fixing mechanism;301, the first cylinder;302, the second cylinder;303, the first arc-shaped clamping plate;304, the second arc-shaped clamping plate;305, the fixed plate;306, the locking bolt;4, the exhaust mechanism;401, the shell;402, the exhaust fan;403, the filter screen;5, the LNG cylinder body;6, the first installation chamber;7, the second installation chamber;8, the first heat insulation cotton;9, the second heat insulation cotton;10, the round end plate;11, the ring plate. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with the embodiment, and the embodiment is only used to explain the utility model, and does not constitute the limitation of the protection scope of the utility model.

[0023] According to Figures 1-7As shown, the embodiment proposes a vehicle-mounted LNG cylinder multi-layer heat insulation cooling box, which comprises a first box shell 1 and a second box shell 2, the first box shell 1 and the second box shell 2 are internally provided with a cylinder fixing mechanism 3, the cylinder fixing mechanism 3 is provided with at least two groups, the top of the first box shell 1 and the second box shell 2 is provided with an exhaust mechanism 4, the cylinder fixing mechanism 3 inside the first box shell 1 and the second box shell 2 is used for fixing the two ends of the LNG cylinder body 5 respectively, the wall of the first box shell 1 and the wall of the second box shell 2 are hollow structures, the wall of the first box shell 1 and the wall of the second box shell 2 are respectively provided with a first installation cavity 6, the first installation cavity 6 is arranged in an annular array and provided with four groups, the wall of the first box shell 1 and the wall of the second box shell 2 inside the outer side of the four groups of first installation cavities 6 are respectively provided with a second installation cavity 7, the second installation cavity 7 is arranged in an annular array and provided with four groups, the four groups of first installation cavities 6 are internally provided with a first heat insulation cotton 8, and the four groups of second installation cavities 7 are internally provided with a second heat insulation cotton 9.

[0024] When the multi-layer heat insulation cooling box of the utility model is assembled with the LNG cylinder body 5, first, the first box shell 1 is loaded from the tail end of the LNG cylinder body 5, then the cylinder fixing mechanism 3 inside the first box shell 1 is started, so that the cylinder fixing mechanism 3 clamps and fixes the latter half of the LNG cylinder body 5, then the second box shell 2 is loaded from the head end of the LNG cylinder body 5, then the cylinder fixing mechanism 3 inside the second box shell 2 is started, so that the cylinder fixing mechanism 3 clamps and fixes the former half of the LNG cylinder body 5, when heat insulation and cooling, the first heat insulation cotton 8 and the second heat insulation cotton 9 perform double-layer heat insulation, and the exhaust mechanism 4 is used for blowing and discharging the heat generated in the vehicle running process from the top position of the first box shell 1 and the second box shell 2.

[0025] The cylinder fixing mechanism 3 comprises a first air cylinder 301, a second air cylinder 302, a first arc-shaped clamping plate 303 and a second arc-shaped clamping plate 304, the first air cylinder 301 and the second air cylinder 302 are mounted on the outer walls of the first box shell 1 and the second box shell 2, and the output ends of the first air cylinder 301 and the second air cylinder 302 are respectively provided with the first arc-shaped clamping plate 303 and the second arc-shaped clamping plate 304. By starting the first air cylinder 301 and the second air cylinder 302 and then driving the first arc-shaped clamping plate 303 and the second arc-shaped clamping plate 304 to approach the outer wall of the LNG cylinder body 5, the LNG cylinder body 5 is clamped and fixed.

[0026] The first arc-shaped clamping plate 303 and the second arc-shaped clamping plate 304 are provided with a fixed plate 305 on both sides, and the same side upper and lower fixed plates 305 are connected through locking bolts 306. When the first arc-shaped clamping plate 303 and the second arc-shaped clamping plate 304 clamp and fix the LNG cylinder body 5, the same side upper and lower fixed plates 305 are fixed by using the locking bolts 306, so that the fixing stability is improved.

[0027] The exhaust mechanism 4 comprises a shell 401, an exhaust fan 402 and a filter screen 403, the exhaust fan 402 is arranged in the shell 401, and the filter screen 403 is arranged on the top of the exhaust fan 402.

[0028] The first box shell 1 is provided with an open structure at one end, and is provided with a circular end plate 10 at the other end. The second box shell 2 is provided with an open structure at one end, and is provided with a ring plate 11 at the other end. The ring plate 11 is arranged to enable the head end of the LNG cylinder body 5 to extend from the ring plate 11, without affecting the installation of the remaining parts of the head end.

[0029] The cooling box is composed of the first box shell 1 and the second box shell 2, which can be conveniently assembled on the outer side of the LNG cylinder body 5. The first heat insulation cotton 8 arranged in the first mounting chamber 6 and the second heat insulation cotton 9 arranged in the second mounting chamber 7 enable the first box shell 1 and the second box shell 2 to have multi-layer heat insulation performance, thereby avoiding the cooling failure caused by the damage of a single heat insulation layer. The first heat insulation cotton 8 and the second heat insulation cotton 9 are each provided with four groups, which are independently arranged to facilitate single replacement, thereby reducing the cost consumption problem caused by overall replacement.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model. The utility model also has various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer heat-insulated cooling box for LNG cylinders on vehicles, characterized in that: The utility model relates to a LNG gas cylinder fixing device, including first box shell (1) and second box shell (2), first box shell (1) and second box shell (2) inside are equipped with gas cylinder fixing mechanism (3), gas cylinder fixing mechanism (3) is equipped with at least two groups, first box shell (1) and second box shell (2) top are equipped with exhaust mechanism (4), first box shell (1) and second box shell (2) inside gas cylinder fixing mechanism (3) are used for respectively fixing the both ends of LNG gas cylinder body (5), first box shell (1) wall and second box shell (2) wall are hollow structure, first box shell (1) wall and second box shell (2) wall inside are equipped with first installation chamber (6) respectively, first installation chamber (6) is ring array and is equipped with four groups, four groups first installation chamber (6) outside first box shell (1) wall and second box shell (2) wall inside are equipped with second installation chamber (7) respectively, second installation chamber (7) is ring array and is equipped with four groups, four groups first installation chamber (6) inside are equipped with first heat insulation cotton (8), four groups second installation chamber (7) inside are equipped with second heat insulation cotton (9). ​ 2. The LNG cylinder multilayer insulation cooling box according to claim 1, characterized in that: The utility model relates to a LNG gas cylinder fixing device, including first box shell (1) and second box shell (2), first box shell (1) and second box shell (2) inside are equipped with gas cylinder fixing mechanism (3), gas cylinder fixing mechanism (3) is equipped with at least two groups, first box shell (1) and second box shell (2) top are equipped with exhaust mechanism (4), first box shell (1) and second box shell (2) inside gas cylinder fixing mechanism (3) are used for respectively fixing the both ends of LNG gas cylinder body (5), first box shell (1) wall and second box shell (2) wall are hollow structure, first box shell (1) wall and second box shell (2) wall inside are equipped with first installation chamber (6) respectively, first installation chamber (6) is ring array and is equipped with four groups, four groups first installation chamber (6) outside first box shell (1) wall and second box shell (2) wall inside are equipped with second installation chamber (7) respectively, second installation chamber (7) is ring array and is equipped with four groups, four groups first installation chamber (6) inside are equipped with first heat insulation cotton (8), four groups second installation chamber (7) inside are equipped with second heat insulation cotton (9). 3.The vehicle-mounted LNG cylinder multi-layer insulation cooling box according to claim 2, characterized in that: The utility model relates to a LNG gas cylinder fixing device, including first box shell (1) and second box shell (2), first box shell (1) and second box shell (2) inside are equipped with gas cylinder fixing mechanism (3), gas cylinder fixing mechanism (3) is equipped with at least two groups, first box shell (1) and second box shell (2) top are equipped with exhaust mechanism (4), first box shell (1) and second box shell (2) inside gas cylinder fixing mechanism (3) are used for respectively fixing the both ends of LNG gas cylinder body (5), first box shell (1) wall and second box shell (2) wall are hollow structure, first box shell (1) wall and second box shell (2) wall inside are equipped with first installation chamber (6) respectively, first installation chamber (6) is ring array and is equipped with four groups, four groups first installation chamber (6) outside first box shell (1) wall and second box shell (2) wall inside are equipped with second installation chamber (7) respectively, second installation chamber (7) is ring array and is equipped with four groups, four groups first installation chamber (6) inside are equipped with first heat insulation cotton (8), four groups second installation chamber (7) inside are equipped with second heat insulation cotton (9).

4. The LNG cylinder multilayer insulation cooling box according to claim 1, characterized in that: The utility model relates to a LNG gas cylinder fixing device, including first box shell (1) and second box shell (2), first box shell (1) and second box shell (2) inside are equipped with gas cylinder fixing mechanism (3), gas cylinder fixing mechanism (3) is equipped with at least two groups, first box shell (1) and second box shell (2) top are equipped with exhaust mechanism (4), first box shell (1) and second box shell (2) inside gas cylinder fixing mechanism (3) are used for respectively fixing the both ends of LNG gas cylinder body (5), first box shell (1) wall and second box shell (2) wall are hollow structure, first box shell (1) wall and second box shell (2) wall inside are equipped with first installation chamber (6) respectively, first installation chamber (6) is ring array and is equipped with four groups, four groups first installation chamber (6) outside first box shell (1) wall and second box shell (2) wall inside are equipped with second installation chamber (7) respectively, second installation chamber (7) is ring array and is equipped with four groups, four groups first installation chamber (6) inside are equipped with first heat insulation cotton (8), four groups second installation chamber (7) inside are equipped with second heat insulation cotton (9).

5. The LNG cylinder multilayer insulation cooling box according to claim 1, characterized in that: ​ 6.The vehicle-mounted LNG cylinder multi-layer insulation cooling box according to claim 1, characterized in that: ​

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