A refrigerated liquefied gas tank container

Abstract

The present invention discloses a refrigerated liquefied gas tank container, comprising a tank body, a frame, an internal pipeline and a valve pipeline assembly; the tank body comprises an inner container, an outer shell sleeved outside the inner container, a fixed support and a sliding support connecting the inner container and the outer shell, a skirt connecting the frame and the tank body, and an insulation layer arranged between the inner container and the outer shell and wrapped around the inner container; the frame comprises two opposite end frames, mutually parallel side beams connected between the two end frames, a bottom beam, a support, a bottom diagonal brace and a support; the tank body is placed in the frame, and the tank body is connected to the frame through the skirt and the bottom beam; one end of the internal pipeline is connected to the inner container, and the other end passes through the outer shell and is connected to the valve pipeline assembly, and the valve pipeline assembly is located in a triangular area surrounded by the tank body, the end frame and the bottom beam. The present invention can realize railway, highway, waterway and their combined transportation, with large volume, small deadweight, high safety and good adaptability.

Description

Technical Field

[0001] The invention belongs to the technical field of logistics and transportation, and in particular relates to a refrigerated liquefied gas tank container. Background Art

[0002] With the continuous growth of my country's gas industry, the consumption market of refrigerated liquefied gases represented by liquefied natural gas and liquid nitrogen has increased rapidly. Refrigerated liquefied gas tank containers are becoming more and more widely used due to their safety, efficiency and flexibility, and in line with the national multimodal transport development plan.

[0003] Existing refrigerated liquefied gas tank containers need to withstand impact loads during road, rail and water transportation, especially China's railway impact loads. Therefore, the tank body and frame of the tank container are designed to be very strong, resulting in heavy weight, small volume and low technical and economic indicators.

[0004] The valve pipelines or loading and unloading ports of existing refrigerated liquefied gas tank containers are set at the ends of the tank containers. This design is not suitable for China's railway transportation because most of the existing flat cars are equipped with end door stops. During railway transportation, if an emergency occurs, the door box cannot be opened to operate the valve or transfer the shipping medium, which will further expand the accident and even cause personal accidents. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a refrigerated liquefied gas tank container that can realize railway, road, waterway and their combined transport, has a large volume, a light weight, a high safety and a good adaptability, and solves the problems of the existing refrigerated liquefied gas tank containers with small load capacity, heavy weight, low safety and poor versatility.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0007] A refrigerated liquefied gas tank container comprises a tank body, a frame, internal pipelines and a valve pipeline assembly;

[0008] The tank body comprises an inner container, an outer shell sleeved outside the inner container, and an insulating layer arranged between the inner container and the outer shell and wrapped around the inner container; a skirt connecting the tank body and the frame; a fixed support and a fixed support are arranged between the inner container and the outer shell, and the space between the inner container and the outer shell is a vacuum environment;

[0009] The frame includes two opposite end frames, four side beams connected between the two end frames and parallel to each other and perpendicular to the plane where the end frames are located, a bottom beam, a support, a bottom diagonal brace and a support; the end frame includes a mutually parallel transverse upper end beam and a lower end beam, two mutually parallel vertical corner columns and a corner piece connecting the upper end beam, the lower end beam and the two corner columns into a rectangular frame; four diagonal braces are provided at the four corners of the rectangular frame; the bottom beam is vertically connected to the end frame; the side beam is connected to the four corners of the rectangular frame; the bottom diagonal brace connects the support and the corner piece; the support connects the side beam and the shell; the tank body is placed in the frame, and the tank body is connected to the frame through the skirt and the bottom beam;

[0010] One end of the internal pipeline is connected to the inner container, and the other end passes through the outer shell and is connected to the valve pipeline assembly. The valve pipeline assembly is located in a triangular area surrounded by the tank body, the end frame and the bottom beam.

[0011] The present invention also includes the following technical features:

[0012] Specifically, the inner container is a cylindrical structure, and the heads at both ends of the inner container are arc surfaces; the outer shell is a cylindrical structure, and the heads at both ends of the outer shell are disc-shaped structures;

[0013] Specifically, a support is provided between the side beam and the outer shell.

[0014] Specifically, the two ends of the diagonal brace are connected to the upper end beam and the upper part of the corner column, or to the lower end beam and the lower part of the corner column, and the angle between the diagonal brace and the connected corner column, upper end beam or lower end beam is 40° to 50°.

[0015] Specifically, the fixed support and the sliding support are multiple support members, which are arranged along the circumference of the inner container and the outer shell to connect the inner container and the outer shell; the multiple support members close to the valve pipeline assembly are fixed supports, and the multiple support members far from the valve pipeline assembly are sliding supports.

[0016] Specifically, the valve pipeline assembly includes a valve box, a valve pipeline arranged in the valve box, and a loading and unloading port; the valve pipeline is connected to the internal pipeline.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] The invention can realize railway, highway, waterway and their combined transport, has large volume, light deadweight, high safety and good adaptability, and solves the problems of small load capacity, heavy deadweight, low safety and poor versatility of existing refrigerated liquefied gas tank containers.

[0019] The present invention optimizes the frame structure and its connection structure with the tank body by reasonably matching the parameters of the inner and outer containers, the thickness of the insulation layer, the length and diameter of the supporting components, the height of the reinforcement ring and other tank body parameters, so as to maximize the volume and reduce the weight of the tank container, while meeting the requirements of combined transport by road, rail and water, and in particular meeting the requirements of China's railway transportation conditions.

[0020] The valve pipeline equipment of the present invention is located at the lower side of the tank container, which can effectively protect the loading and unloading valves, enhance transportation safety, and facilitate emergency handling of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the present invention.

[0022] Figure 2 It is a side view of the present invention.

[0023] The meanings of the numbers in the figure are: 1-tank, 2-frame, 3-internal pipeline, 4-valve pipeline assembly;

[0024] 11-inner container, 12-outer shell, 13-fixed support, 14-sliding support, 15-skirt;

[0025] 21-end frame, 22-side beam, 23-bottom beam, 24-support, 25-bottom diagonal brace, 26-support;

[0026] 211-upper end beam, 212-lower end beam, 213-corner column, 214-corner piece, 215-diagonal brace;

[0027] 41-valve box, 42-valve pipeline, 43-loading and unloading port. DETAILED DESCRIPTION

[0028] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] Following the above technical solution, Figure 1 to Figure 2 As shown, this embodiment provides a refrigerated liquefied gas tank container, including a tank body 1, a frame 2, an internal pipeline 3 and a valve pipeline assembly 4.

[0031] The tank body 1 comprises an inner container 11, an outer shell 12 sleeved on the outer surface of the inner container 11, a fixed support 13 and a sliding support 14 connecting the inner container 11 and the outer shell 12, a skirt 15 connecting the tank body 1 and the frame 2, and an insulating layer arranged between the inner container 11 and the outer shell 12 and wrapped around the inner container 11; the tank body is a low-temperature container with high-vacuum multi-layer winding insulation, and the outer wall of the inner container is alternately wound with an insulating layer composed of a multi-layer reflective screen (aluminum foil) and glass fiber paper, and the jacket formed between the inner and outer shells is evacuated to a high vacuum to achieve the purpose of insulation; a supporting member is provided between the inner container 11 and the outer shell 12 to connect the inner container 11 and the outer shell 12.

[0032] The frame 2 includes two opposite end frames 21, four side beams 22 connected between the two end frames 21 and parallel to each other and perpendicular to the plane where the end frames 21 are located, a bottom beam 23 and a support 24, a bottom diagonal brace 25 and a support 26; the end frame 21 includes a mutually parallel transverse upper end beam 211 and a lower end beam 212, two mutually parallel vertical corner columns 213, and a corner piece 214 connecting the upper end beam 211, the lower end beam 212 and the two corner columns 213 into a rectangular frame; four diagonal braces 215 are provided at the four corners of the rectangular frame; the bottom beam 23 is vertically connected to the end frame 21; the side beams 22 are connected to the four corners of the rectangular frame; the bottom diagonal brace 25 connects the support 24 on the bottom beam 23 and the corner piece 214; the tank body 1 is placed in the frame 2, and the tank body 1 is connected to the frame 2 through the skirt 25 and the bottom beam 23, so that the load is dispersed and transmitted through multiple paths, which not only meets the strict railway transportation working conditions, but also realizes the lightweight design of the overall frame. The frame adopts cold-bent profiles with different sections, specifications and thicknesses and optimizes the structure, which effectively reduces the frame weight while improving the reliability of the frame and the safety of the tank body. A gooseneck groove is provided at the bottom of the frame, which can be transported by flatbed trucks and skeleton trucks, and has strong versatility.

[0033] One end of the internal pipeline 3 is connected to the inner container 11 , and the other end passes through the outer shell 12 and is connected to the valve pipeline assembly 4 . The valve pipeline assembly 4 is located in a triangular area surrounded by the tank body 1 , the end frame 21 and the bottom beam 23 .

[0034] The inner container 11 is a cylindrical structure, and the heads at both ends of the inner container 11 are arc surfaces; the outer shell 12 is a cylindrical structure, and the heads at both ends of the outer shell 12 are disc-shaped structures; the characteristics of good force bearing of the arc surface head and small depth of the disc-shaped head are fully utilized. By reasonably matching the tank parameters such as the inner container diameter and thickness, the outer shell diameter and thickness, the insulation layer thickness, the length and diameter of the support member, and the height of the reinforcement ring, and fully considering the flat car weight limit and container limit requirements, the tank body can meet the vacuum insulation index, maximize its volume, and reduce its weight.

[0035] A support 26 is provided between the side beam 22 and the outer shell 12 to better protect the outer shell.

[0036] Both ends of the diagonal brace 215 are connected to the upper end beam 211 and the upper part of the corner column 213, or to the lower end beam 212 and the lower part of the corner column 213. The angle between the diagonal brace 215 and the corner column 213, the upper end beam 211 or the lower end beam 212 connected thereto is 40° to 50°.

[0037] Both the fixed support 13 and the sliding support 14 are multiple support members, which are arranged circumferentially along the inner container 11 and the outer shell 12 to connect the inner container 11 and the outer shell 12; the multiple support members close to the valve pipeline assembly 4 are fixed supports 13, and the multiple support members away from the valve pipeline assembly 4 are sliding supports 14.

[0038] The valve pipeline assembly 4 includes a valve box 41, a valve pipeline 42 arranged in the valve box 41, and a loading and unloading port 43; the valve pipeline 42 is connected to the internal pipeline 3. The valve pipeline and the loading and unloading port are located at the lower side of the tank container, which can effectively prevent the valve pipeline and the loading and unloading port from being damaged due to rear-end collision and avoid the expansion of accidents; and during railway transportation, the box door box can be opened to facilitate valve operation and timely emergency treatment.

[0039] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0040] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0041] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A refrigerated liquefied gas tank container, It is characterized in that It comprises a tank body (1), a frame (2), an internal pipeline (3) and a valve pipeline assembly (4); The tank body (1) comprises an inner container (11), an outer shell (12) sleeved on the outer surface of the inner container (11), a fixed support (13) and a sliding support (14) connecting the inner container (11) and the outer shell (12), a skirt (15) connecting the tank body (1) and the frame (2), and a heat insulating layer provided between the inner container (11) and the outer shell (12) and wrapped around the inner container (11); the space between the inner container (11) and the outer shell (12) is a vacuum environment; The frame (2) comprises two opposite end frames (21), four side beams (22) connected between the two end frames (21) and parallel to each other and perpendicular to the plane where the end frames (21) are located, a bottom beam (23) and a support (24), a bottom diagonal brace (25) and a support (26); the end frame (21) comprises a mutually parallel transverse upper end beam (211) and a lower end beam (212), two mutually parallel vertical corner columns (213), and a rectangular connecting member connecting the upper end beam (211), the lower end beam (212) and the two corner columns (213). The bottom beam (23) is connected to the end frame (21) at the four corners of the rectangular frame; four diagonal braces (215) are provided at the four corners of the rectangular frame; the bottom beam (23) is vertically connected to the end frame (21); the side beams (22) are connected to the four corners of the rectangular frame; the bottom diagonal braces (25) connect the supports (24) on the bottom beam (23) and the corner pieces (214); the supports (26) connect the side beams (22) and the outer shell (12); the tank body (1) is placed in the frame (2), and the tank body (1) is connected to the frame (2) through the skirt (15) and the bottom beam (23); One end of the internal pipeline (3) is connected to the inner container (11), and the other end passes through the outer shell (12) and is connected to the valve pipeline assembly (4), and the valve pipeline assembly (4) is located in a triangular area surrounded by the tank body (1), the end frame (21) and the bottom beam (23); The inner container (11) is a cylindrical structure, and the seal heads at both ends of the inner container (11) are arc surfaces; the outer shell (12) is a cylindrical structure, and the seal heads at both ends of the outer shell (12) are disc-shaped structures; A support (26) is provided between the side beam (22) and the outer shell (12); The fixed support (13) and the sliding support (14) are both a plurality of support members, which are arranged along the circumference of the inner container (11) and the outer shell (12) to connect the inner container (11) and the outer shell (12); the plurality of support members close to the valve pipeline assembly (4) are the fixed support (13), and the plurality of support members far from the valve pipeline assembly (4) are the sliding support (14); The valve pipeline assembly (4) comprises a valve box (41), a valve pipeline (42) arranged in the valve box (41), and a loading and unloading port (43); the valve pipeline (42) is connected to the internal pipeline (3); The tank body (1) is a low-temperature container with high vacuum multi-layer winding insulation. The outer wall of the inner container (11) is wound with a multi-layer insulation layer composed of a reflective screen and glass fiber paper. The jacket formed between the inner and outer shells is evacuated to a high vacuum. The frame (2) is made of cold-bent profiles with different cross-sections, specifications and thicknesses. A gooseneck groove is provided at the bottom of the frame (2).

2. The refrigerated liquefied gas tank container according to claim 1, It is characterized in that The two ends of the diagonal brace (215) are connected to the upper end beam (211) and the upper part of the corner column (213), or connected to the lower end beam (212) and the lower part of the corner column (213), and the angles between the diagonal brace (215) and the corner column (213), the upper end beam (211) or the lower end beam (212) connected thereto are all 40° to 50°.

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