Natural gas transportation tank with buffering function

Abstract

The utility model relates to the technical field of natural gas transportation with a buffering function, and discloses a natural gas transportation tank with a buffering function, which comprises a transportation device, a pedestal fixedly connected with the upper surface of the transportation device and a tank body arranged on the upper side of the pedestal, and a transportation buffering mechanism and a damping stabilizing mechanism are arranged on the upper side of the transportation device. The damping stabilizing mechanism is arranged on the inner side of the transportation buffering mechanism, the transportation buffering mechanism comprises a sleeve plate, the sleeve plate is fixedly connected to the lower surface of the tank body, the lower surface of the sleeve plate is slidably connected with the upper surface of the pedestal, a partition plate is fixedly connected to the interior of the tank body, and supporting columns are fixedly connected to the outer sides of the two ends of the sleeve plate; a sliding rod is fixedly connected to the inner side of the supporting column, a sliding plate is fixedly connected to the outer wall of the sliding rod, the sliding rod is slidably connected into the pedestal, a sliding cavity is formed in the pedestal, the transportation buffering mechanism is used for providing sudden stop buffering for the natural gas transportation tank, and the damping stabilizing mechanism is used for dispersing vibration encountered in the transportation process.

Description

Technical Field

[0001] This utility model relates to the field of natural gas transportation technology with buffer function, specifically a natural gas transportation tank with buffer function. Background Technology

[0002] Natural gas is a mixture of hydrocarbon gases, primarily methane (CH4), containing small amounts of ethane, propane, and inert gases. Due to its high calorific value and low emissions, it has become a core clean fuel in the global energy transition, widely used in power generation, industrial fuel, and city gas. In terms of transportation methods, pipelines are suitable for long-distance, large-scale transport, while liquefied natural gas (LNG) tank trucks, through cryogenic liquefaction at -162℃, compress the volume to 1 / 600th of its gaseous state, enabling flexible regional distribution and emergency peak shaving, especially suitable for remote areas without pipeline coverage. LNG tank trucks employ a double-layer vacuum insulation structure. The inner layer is made of low-temperature resistant austenitic stainless steel or aluminum alloy, while the interlayer is vacuum-sealed and filled with perlite. During natural gas transportation, multiple risks are encountered: severe vibrations may cause fatigue cracking of welds; temperature fluctuations caused by extreme weather can lead to changes in the medium's phase; and kinetic energy impacts from road bumps or emergency braking can easily cause sudden pressure changes within the tank. It absorbs energy under impact loads to prevent tank rupture caused by a sudden increase in pressure exceeding the design threshold. If the instantaneous kinetic energy generated by a traffic accident collision lacks a buffer dissipation mechanism, it may be directly transmitted to the tank, causing LNG leakage. If it encounters an ignition source, it will form a vapor cloud explosion.

[0003] Although existing natural gas transport tanks are made of robust materials and fixed to the vehicle body by welding, accidents involving natural gas transport tankers are not uncommon due to the hazardous nature of the transported goods. Each stop or vibration of the vehicle will more or less reduce the tightness of the tank and affect its lifespan. Over time, the tank may be torn during a sudden stop, affecting the safety of transportation. Therefore, there is a need for a natural gas transport tank with a longer lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a natural gas transport tank with a buffer function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a natural gas transport tank with a buffer function, comprising a transport device, a platform fixedly connected to the upper surface of the transport device, and a tank body disposed on the upper side of the platform. The upper side of the transport device is provided with a transport buffer mechanism and a shock-absorbing and stabilizing mechanism, wherein the shock-absorbing and stabilizing mechanism is disposed inside the transport buffer mechanism.

[0006] The transport buffer mechanism includes a sleeve plate, which is fixedly connected to the lower surface of the tank. The lower surface of the sleeve plate is slidably connected to the upper surface of the platform. A partition plate is fixedly connected inside the tank. Support columns are fixedly connected to the outer sides of both ends of the sleeve plate. A sliding rod is fixedly connected to the inner side of the support column. A sliding plate is fixedly connected to the outer wall of the sliding rod. The sliding rod is slidably connected inside the platform. A sliding cavity is opened inside the platform. The sliding plate is slidably connected to the sliding cavity. Buffer springs are fixedly connected between the two sides of the sliding plate and the inside of the platform. A collar is fixedly connected to the outer wall of the tank. The collar is located on the outer side of the platform. A tightening cylinder is fixedly connected to the lower surface of the collar. A limit post is fixedly connected to the upper surface of the transport device. A sliding plate is slidably connected to the inner wall of the tightening cylinder. A sleeve rod is fixedly connected to the lower surface of the sliding plate. The lower end of the sleeve rod passes through the tightening cylinder and extends to the lower side of the tightening cylinder. The sleeve rod is slidably connected to the outer wall of the limit post. An elastic element is fixedly connected between the lower side of the sliding plate and the inside of the tightening cylinder. A pneumatic pipe is provided connecting the inside of the left side of the sliding cavity and the inside of the lower side of the tightening cylinder.

[0007] Preferably, the lower end of the sleeve has a cylindrical groove.

[0008] Preferably, the slide plate is disposed on the inner side of the slide cavity.

[0009] Preferably, the air pressure pipe is located on the negative pressure side inside the sliding cavity.

[0010] Preferably, the shock-absorbing and stabilizing mechanism includes a support plate, which is fixedly connected to the middle side of the lower surface of the tank. A vibration-dispersing plate is fixedly connected to the lower surface of the support plate. A friction seat is fixedly connected to the upper surface of the transport device. The vibration-dispersing plate is slidably connected to the inner wall of the friction seat. An adjusting cylinder is fixedly connected to the outer side of the friction seat. A piston plate is slidably connected inside the adjusting cylinder. A push rod is fixedly connected to the inner side of the piston plate. The push rod passes through the outer wall of the friction seat and fits against the outer wall of the vibration-dispersing plate. A spreading spring is fixedly connected between one side of the piston plate and the inner wall of the adjusting cylinder. A pressure regulating pipe is provided between the inside of the adjusting cylinder and the inside of the right side of the sliding cavity.

[0011] Preferably, a rubber structure is fixedly connected between the inner walls of the friction seat.

[0012] Preferably, the vibration-dissipating plates are evenly distributed on the lower surface of the support plate.

[0013] Compared with the prior art, this utility model provides a natural gas transport tank with a buffer function, which has the following beneficial effects:

[0014] 1. The transport buffer mechanism is used to provide emergency stop buffer for natural gas transport tanks. This mechanism uses a sleeve plate as a base and provides the transport tank with the movement process. At the moment of emergency stop of the vehicle, all the weight of the tank will be converted into inertial potential energy. The inertial potential energy of the tank is consumed by the friction between the sleeve plate and the upper surface of the base. At the same time, the pressure inside the sliding cavity changes during the movement of the tank. The pressure is used to control the displacement of the tightening cylinder, so that the tank is subjected to a tension close to the vehicle body. This increases the friction at the connection point between the tank and the vehicle body, thereby dispersing and consuming the inertial potential energy and preventing the tank from being torn due to strong impact.

[0015] 2. The shock absorption and stabilization mechanism is used to disperse the vibrations encountered during transportation. This mechanism uses the pallet and the shock-dispersing plate as the maximum contact point of the transport tank. The mechanism can absorb the tank vibration through the shock-dispersing plate, and use the spring to make the shock-dispersing plate fit tightly with the friction seat, thereby transmitting the vibration to the friction seat and preventing the tank from being subjected to strong vibrations. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the platform of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the sleeve plate in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the tray in this utility model.

[0022] In the diagram: 1. Transport device; 2. Platform; 3. Tank body; 4. Transport buffer mechanism; 401. Sleeve plate; 402. Divider plate; 403. Support column; 404. Slide rod; 405. Slide plate; 406. Slide cavity; 407. Buffer spring; 408. Collar; 409. Tightening cylinder; 410. Limiting post; 411. Slide plate; 412. Sleeve rod; 413. Elastic element; 414. Air pressure pipe; 5. Shock absorption and stabilization mechanism; 501. Support plate; 502. Vibration dissipation plate; 503. Friction seat; 504. Adjusting cylinder; 505. Piston plate; 506. Top rod; 507. Spreading spring; 508. Pressure regulating pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] This mechanism provides cushioning for the tank and addresses the issue of reduced tank lifespan during emergency braking in existing devices. (See also...) Figure 1-5 The present invention provides a technical solution: a natural gas transport tank with a buffer function, including a transport device 1, a base 2 fixedly connected to the upper surface of the transport device 1, and a tank body 3 disposed on the upper side of the base 2. The upper side of the transport device 1 is provided with a transport buffer mechanism 4 and a shock-absorbing and stabilizing mechanism 5, and the shock-absorbing and stabilizing mechanism 5 is disposed inside the transport buffer mechanism 4.

[0027] The transport buffer mechanism 4 includes a sleeve plate 401, which is fixedly connected to the lower surface of the tank body 3. The lower surface of the sleeve plate 401 is slidably connected to the upper surface of the base 2. A partition plate 402 is fixedly connected inside the tank body 3. Support columns 403 are fixedly connected to the outer sides of both ends of the sleeve plate 401. A sliding rod 404 is fixedly connected to the inner side of the support column 403. A sliding plate 405 is fixedly connected to the outer wall of the sliding rod 404. The sliding rod 404 is slidably connected inside the base 2. A sliding cavity 406 is opened inside the base 2. The sliding plate 405 is slidably connected to the sliding cavity 406. Buffer springs 407 are fixedly connected between both sides of the sliding plate 405 and the interior of the base 2. The outer wall of the tank body 3 is fixedly connected to... A collar 408 is attached to the outer side of the base 2. A tightening cylinder 409 is fixedly connected to the lower surface of the collar 408. A limit post 410 is fixedly connected to the upper surface of the transport device 1. A sliding plate 411 is slidably connected to the inner wall of the tightening cylinder 409. A sleeve rod 412 is fixedly connected to the lower surface of the sliding plate 411. The lower end of the sleeve rod 412 passes through the tightening cylinder 409 and extends to the lower side of the tightening cylinder 409. The sleeve rod 412 is slidably connected to the outer wall of the limit post 410. An elastic element 413 is fixedly connected between the lower side of the sliding plate 411 and the inside of the tightening cylinder 409. A pneumatic pipe 414 is provided to connect the left side of the sliding cavity 406 and the lower side of the tightening cylinder 409.

[0028] Furthermore, a cylindrical groove is provided at the lower end of the sleeve rod 412.

[0029] Furthermore, the slide plate 405 is located inside the middle side of the slide cavity 406.

[0030] Furthermore, the air pressure pipe 414 is located on the negative pressure side inside the sliding cavity 406.

[0031] Example 2:

[0032] This mechanism is used to reduce the inertia experienced by tank 3 during transportation, solving the problem that existing methods of limiting tank 3 to the transportation device 1 through welding are insufficient to reduce vibration. Please refer to [link / reference]. Figure 1-5 Furthermore, in conjunction with Embodiment 1, the shock-absorbing and stabilizing mechanism 5 includes a support plate 501, which is fixedly connected to the middle side of the lower surface of the tank 3. A vibration-diffusing plate 502 is fixedly connected to the lower surface of the support plate 501. A friction seat 503 is fixedly connected to the upper surface of the transport device 1. The vibration-diffusing plate 502 is slidably connected to the inner wall of the friction seat 503. An adjusting cylinder 504 is fixedly connected to the outer side of the friction seat 503. A piston plate 505 is slidably connected inside the adjusting cylinder 504. A top rod 506 is fixedly connected to the inner side of the piston plate 505. The top rod 506 passes through the outer wall of the friction seat 503 and fits against the outer wall of the vibration-diffusing plate 502. A spreading spring 507 is fixedly connected between one side of the piston plate 505 and the inner wall of the adjusting cylinder 504. A pressure regulating pipe 508 is provided between the inside of the adjusting cylinder 504 and the inside of the right side of the sliding cavity 406.

[0033] Furthermore, a rubber structure is fixedly connected between the inner walls of the friction seat 503.

[0034] Furthermore, the vibration-dissipating plates 502 are evenly distributed on the lower surface of the support plate 501.

[0035] In actual operation, when this device is used, the user fills the natural gas transport tank with natural gas. During the operation of the transport device 1, the vehicle may vibrate. The vibration damping plate 502 is used to make the tank 3 more stable by adhering to the friction seat 503. At the same time, the rubber inside the friction seat 503 can reduce the vibration of the tank 3. When the vehicle brakes suddenly, the liquid natural gas inside the tank 3 is dispersed by the partition plate 402. The tank 3 absorbs the inertial liquid impact force and converts its own weight into inertial potential energy. At this time, the friction between the sleeve plate 401 and the upper surface of the base 2 can be eliminated. The friction seat 503 and the vibration damping plate 502 work together to disperse and consume the inertial potential energy. When the tank 3 is forced to move due to its large inertial potential energy, the pressure inside the sliding cavity 406 becomes unbalanced due to the displacement of the sliding plate 405. The unbalanced pressure causes the tightening cylinder 409 to move downward through the air pressure pipe 414, thereby increasing the contact force between the tank 3 and the transport device 1. In this process, the inertial potential energy of the tank 3 is also dispersed and consumed, and the friction between the tank 3 and the connection point is increased, so that the inertial potential energy of the tank 3 is consumed evenly and multiple times, thus protecting the life of the tank 3.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A natural gas transport tank with a buffer function, comprising a transport device (1), a platform (2) fixedly connected to the upper surface of the transport device (1), and a tank body (3) disposed on the upper side of the platform (2), characterized in that: The transport device (1) is provided with a transport buffer mechanism (4) and a shock-absorbing and stabilizing mechanism (5) on its upper side, and the shock-absorbing and stabilizing mechanism (5) is located inside the transport buffer mechanism (4); The transport buffer mechanism (4) includes a sleeve plate (401), which is fixedly connected to the lower surface of the tank body (3). The lower surface of the sleeve plate (401) is slidably connected to the upper surface of the platform (2). A partition plate (402) is fixedly connected inside the tank body (3). Support columns (403) are fixedly connected to the outer sides of both ends of the sleeve plate (401). A sliding rod (404) is fixedly connected to the inner side of the support column (403). A sliding plate (405) is fixedly connected to the outer wall of the sliding rod (404). The sliding rod (404) is slidably connected inside the platform (2). A sliding cavity (406) is opened inside the platform (2). The sliding plate (405) is sealed and slidably connected inside the sliding cavity (406). Buffer springs (407) are fixedly connected between both sides of the sliding plate (405) and the inside of the platform (2). The tank body (3) A collar (408) is fixedly connected to the outer wall. The collar (408) is located on the outside of the base (2). A tightening cylinder (409) is fixedly connected to the lower surface of the collar (408). A limiting post (410) is fixedly connected to the upper surface of the transport device (1). A sliding plate (411) is slidably connected to the inner wall of the tightening cylinder (409). A sleeve rod (412) is fixedly connected to the lower surface of the sliding plate (411). The lower end of the sleeve rod (412) extends through the tightening cylinder (409) to the lower side of the tightening cylinder (409). The sleeve rod (412) is slidably connected to the outer wall of the limiting post (410). An elastic element (413) is fixedly connected between the lower side of the sliding plate (411) and the inside of the tightening cylinder (409). A pneumatic pipe (414) is provided to connect the left side interior of the sliding cavity (406) and the lower side interior of the tightening cylinder (409).

2. A natural gas transport tank with buffer function according to claim 1, characterized in that: The lower end of the sleeve (412) is provided with a cylindrical groove.

3. A natural gas transport tank with buffer function according to claim 1, characterized in that: The slide plate (405) is located inside the middle side of the slide cavity (406).

4. A natural gas transport tank with buffer function according to claim 1, characterized in that: The air pressure pipe (414) is located on the negative pressure side inside the sliding cavity (406).

5. A natural gas transport tank with buffer function according to claim 1, characterized in that: The shock absorption and stabilization mechanism (5) includes a support plate (501), which is fixedly connected to the middle side of the lower surface of the tank (3). A vibration damping plate (502) is fixedly connected to the lower surface of the support plate (501). A friction seat (503) is fixedly connected to the upper surface of the transport device (1). The vibration damping plate (502) is slidably connected to the inner wall of the friction seat (503). An adjusting cylinder (504) is fixedly connected to the outer side of the friction seat (503). A piston plate (505) is slidably connected inside the friction seat (503), and a push rod (506) is fixedly connected to the inner side of the piston plate (505). The push rod (506) passes through the outer wall of the friction seat (503) and fits against the outer wall of the vibration damping plate (502). A spreading spring (507) is fixedly connected between one side of the piston plate (505) and the inner wall of the adjusting cylinder (504). A pressure regulating pipe (508) is provided between the inside of the adjusting cylinder (504) and the inside of the right side of the sliding cavity (406).

6. A natural gas transport tank with a buffer function according to claim 5, characterized in that: A rubber structure is fixedly connected between the inner walls of the friction seat (503).

7. A natural gas transport tank with a buffer function according to claim 5, characterized in that: The vibration-dissipating plates (502) are evenly distributed on the lower surface of the support plate (501).

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