CN118375845A - A storage tank for liquefied natural gas - Google Patents

Abstract

The invention is suitable for the technical field of storage and transportation tanks, and provides a storage and transportation tank for liquefied natural gas, which comprises a base, wherein a main mounting cylinder is arranged on the base, an auxiliary mounting cylinder is arranged in a ring row in the main mounting cylinder, and the storage and transportation tank further comprises: the fixing assembly comprises a clamping plate, a first connecting rod and a second connecting rod are rotatably arranged on the clamping plate, the second connecting rod is slidably arranged on the inner wall of the auxiliary installation cylinder, and a driving mechanism is further arranged on the main installation cylinder; and the auxiliary clamping assembly comprises a sliding block, the sliding block is connected with the inside of the second connecting rod through a second spring, clamping plates are symmetrically arranged on two sides of the second connecting rod, two connecting columns are symmetrically arranged on the sliding block, and a pull rod is rotatably arranged on the connecting columns. The device can adapt to the transportation demands of the storage and transportation tanks with different diameters, can effectively protect the ground storage and transportation tanks in the transportation process, and has good cushioning effect and high safety.

Description

A storage tank for liquefied natural gas

Technical Field

The invention belongs to the technical field of storage and transportation tanks, and in particular relates to a storage and transportation tank for liquefied natural gas.

Background technique

Natural gas refers to a type of combustible gas that exists in nature and is a fossil fuel. Natural gas includes gases formed by various natural processes in the atmosphere, hydrosphere and lithosphere (including oilfield gas, gasfield gas, mud volcano gas, coalbed methane and biogenic gas, etc.). The definition of "natural gas" that people have long used is a narrow definition from the perspective of energy, which refers to a mixture of hydrocarbons and non-hydrocarbon gases naturally stored in the strata. In petroleum geology, it usually refers to oilfield gas and gasfield gas.

When existing small-scale liquefied natural gas storage and transportation tanks are transported, they are usually placed directly on transfer devices. Due to the lack of dedicated fixing devices, the storage and transportation tanks are prone to shaking, and the storage and transportation tanks cannot be fixed well, which can easily lead to danger.

Summary of the invention

The purpose of the embodiments of the present invention is to provide a storage and transportation tank for liquefied natural gas, aiming to solve the problems raised in the above-mentioned background technology.

The embodiment of the present invention is implemented as follows, comprising a base, on which a main mounting tube is arranged, in which a plurality of auxiliary mounting tubes for accommodating storage tanks are arranged in a circle, and further comprising:

A fixing assembly, the fixing assembly comprising a clamping plate installed in an annular manner in the auxiliary mounting tube, two first connecting rods being rotatably installed on a side of the clamping plate close to the inner wall of the auxiliary mounting tube, and the first connecting rod being rotatably installed on the inner wall of the auxiliary mounting tube, a second connecting rod being rotatably installed on a side of the clamping plate close to the inner wall of the auxiliary mounting tube, a sliding seat being rotatably installed on an end of the second connecting rod away from the clamping plate, and the sliding seat being slidably installed on the inner wall of the auxiliary mounting tube along the axial direction of the auxiliary mounting tube, and the sliding seat being connected to the inner wall of the auxiliary mounting tube through a first spring, and a driving mechanism for driving each group of fixing assemblies to clamp the storage tank installed in the auxiliary mounting tube at the same time is also provided on the main mounting tube; and

An auxiliary clamping assembly, which includes a sliding block installed in the clamping plate along the radial sliding of the auxiliary mounting tube, and the sliding block is connected to the inside of the second connecting rod through a second spring, and clamping plates are symmetrically installed on both sides of the second connecting rod, and two connecting columns are symmetrically arranged on the sliding block, and a pull rod is rotatably installed on the connecting column, and the end of the pull rod away from the connecting column is rotatably installed on the clamping plate.

According to a further technical solution, a shock absorbing assembly is also provided on the base, and the main mounting tube is installed on the base through the shock absorbing assembly.

A further technical solution is that the shock absorbing assembly includes a mounting seat installed at the bottom of the main mounting tube, and two sliding columns symmetrically arranged on the base, and the sliding columns are slidably installed on the base, and matching seats are arranged on the opposite sides of the two sliding columns, and the bottom of the mounting seat is provided with an inclined surface matching the matching seat, and a shock absorbing rod is slidably installed on both sides of the mounting seat, and the shock absorbing rod is connected to the inside of the mounting seat through a third spring, and a guide block is provided at the end of the shock absorbing rod away from the mounting seat, and the guide block is installed inside the sliding column and can slide up and down.

According to a further technical solution, a plurality of balls are installed on the side walls of the guide block, and the guide block contacts the inside of the sliding column through the balls.

According to a further technical solution, the two sliding columns are connected to each other via a damping telescopic rod.

According to a further technical solution, the mounting seat is mounted on the bottom of the main mounting tube by fastening bolts.

A further technical solution is that the driving mechanism includes a driving motor installed on the main mounting cylinder, the output end of the driving motor is connected to a sub-gear, a push rod is installed in each of the sub-mounting cylinders, the push rod is connected to the inner wall of the sub-mounting cylinder by threaded cooperation, and one end of the push rod is abutted against each sliding seat in the sub-mounting cylinder, a sub-gear is installed at the end of the push rod away from the sliding seat, and each of the sub-gears is meshed with the main gear.

The embodiment of the present invention provides a storage tank for liquefied natural gas. When in use, the storage tank is first placed in the auxiliary mounting tube, and then the driving mechanism is started. The driving mechanism drives the sliding seat in each auxiliary mounting tube to slide synchronously along the axial direction of the auxiliary mounting tube. The sliding seat drives the clamping plate to move along the radial direction of the auxiliary mounting tube through the second connecting rod, thereby clamping the storage tank placed in the auxiliary mounting tube to achieve its fixation. After the storage tank is placed in the auxiliary mounting tube, the clamping plate located in the area near the bottom of the auxiliary mounting tube will support the storage tank. When the storage tank falls on the clamping plate, under the squeezing action of the storage tank, the sliding block will retract into the clamping plate, and the sliding block drives the connecting column to move synchronously. The connecting column drives the clamping plate to be retracted through the pull rod, and the clamping plate will be clamped on the side wall of the storage tank, thereby achieving the initial fixation of the storage tank and preventing the storage tank from shaking at will when it is not completely fixed. The device can adapt to the transportation needs of storage tanks of different diameters, and can effectively protect the storage tanks during the transportation process, with good shock-absorbing effect and high safety.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a storage and transportation tank for liquefied natural gas provided by an embodiment of the present invention;

FIG2 is an enlarged view of point A in FIG1 in a storage and transportation tank for liquefied natural gas provided by an embodiment of the present invention;

FIG3 is a partial cross-sectional view of a secondary mounting cylinder used in a liquefied natural gas storage and transportation tank provided by an embodiment of the present invention;

FIG4 is a schematic structural diagram of an auxiliary clamping assembly for use in a liquefied natural gas storage and transportation tank provided by an embodiment of the present invention;

FIG5 is a cross-sectional view of a clamping plate used in a liquefied natural gas storage tank provided by an embodiment of the present invention;

FIG6 is a schematic diagram of a partial three-dimensional structure of a fixing assembly used in a liquefied natural gas storage and transportation tank provided by an embodiment of the present invention.

In the accompanying drawings: base 1; main mounting tube 2; auxiliary mounting tube 21; storage tank 22; fixing assembly 3; clamping plate 31; first connecting rod 32; first spring 33; second connecting rod 34; sliding seat 35; driving mechanism 4; main gear 41; auxiliary gear 42; pushing rod 43; auxiliary clamping assembly 5; sliding block 51; second spring 52; connecting column 53; pulling rod 54; snap plate 55; shock absorbing assembly 6; sliding column 61; damping telescopic rod 62; mounting seat 63; matching seat 64; shock absorbing rod 65; third spring 66; guide block 67.

Implementation

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

As shown in Figs. 1, 3, 4, 5 and 6, a storage tank for liquefied natural gas provided in one embodiment of the present invention comprises a base 1, a main mounting tube 2 is arranged on the base 1, a plurality of auxiliary mounting tubes 21 for accommodating storage tanks 22 are arranged in a circle in the main mounting tube 2, and further comprises:

A fixing assembly 3, the fixing assembly 3 comprising a clamping plate 31 installed in a ring in the auxiliary mounting tube 21, two first connecting rods 32 are rotatably installed on one side of the clamping plate 31 close to the inner wall of the auxiliary mounting tube 21, and the first connecting rods 32 are rotatably installed on the inner wall of the auxiliary mounting tube 21, and the second connecting rod 34 is also rotatably installed on the side of the clamping plate 31 close to the inner wall of the auxiliary mounting tube 21, and a sliding seat 35 is rotatably installed on the end of the second connecting rod 34 away from the clamping plate 31, and the sliding seat 35 is slidably installed on the inner wall of the auxiliary mounting tube 21 along the axial direction of the auxiliary mounting tube 21, and the sliding seat 35 is connected to the inner wall of the auxiliary mounting tube 21 through a first spring 33, and the main mounting tube 2 is also provided with a driving mechanism 4 for driving each group of fixing assemblies 3 to clamp the storage tank 22 installed in the auxiliary mounting tube 21 at the same time; and

The auxiliary clamping assembly 5 comprises a sliding block 51 which is slidably mounted in the clamping plate 31 along the radial direction of the auxiliary mounting tube 21, and the sliding block 51 is connected to the inside of the second connecting rod 34 through a second spring 52, and a clamping plate 55 is symmetrically mounted on both sides of the second connecting rod 34, and two connecting columns 53 are symmetrically arranged on the sliding block 51, and a pull rod 54 is rotatably mounted on the connecting column 53, and one end of the pull rod 54 away from the connecting column 53 is rotatably mounted on the clamping plate 55;

When the second spring 52 is in a free state (i.e., not subject to the pressure of the storage tank 22), one end of the sliding block 51 is located outside the clamping plate 31, and the clamping plate 55 is in a maximum opening state.

When the second spring 52 is in a fully compressed state (ie, under the pressure of the storage tank 22 ), the sliding block 51 is completely retracted into the clamping plate 31 , and the engaging plate 55 is in contact with the side wall of the storage tank 22 .

In the embodiment of the present invention, when in use, the storage tank 22 is first placed in the auxiliary installation tube 21, and then the driving mechanism 4 is started, and the driving mechanism 4 drives the sliding seat 35 in each auxiliary installation tube 21 to slide synchronously along the axial direction of the auxiliary installation tube 21. The sliding seat 35 drives the clamping plate 31 to move along the radial direction of the auxiliary installation tube 21 through the second connecting rod 34, so as to clamp the storage tank 22 placed in the auxiliary installation tube 21 to achieve its fixation. After the storage tank 22 is placed in the auxiliary installation tube 21, the clamping plate 31 located near the bottom of the auxiliary installation tube 21 will support the storage tank 22. When the storage tank 22 falls on the clamping plate 31, under the squeezing action of the storage tank 22, the sliding block 51 will retract into the clamping plate 31, and the sliding block 51 will drive the connecting column 53 to move synchronously. The connecting column 53 drives the clamping plate 55 to retract through the pull rod 54, and the clamping plate 55 will be clamped on the side wall of the storage tank 22, thereby achieving preliminary fixation of the storage tank 22 and preventing the storage tank 22 from shaking at will when it is not completely fixed.

As shown in FIGS. 1 and 2 , as a preferred embodiment of the present invention, a shock absorbing assembly 6 is further provided on the base 1 , and the main mounting tube 2 is mounted on the base 1 through the shock absorbing assembly 6 .

In the embodiment of the present invention, the shock absorbing assembly 6 includes a mounting seat 63 installed at the bottom of the main mounting tube 2, and two sliding columns 61 symmetrically arranged on the base 1, and the sliding columns 61 are slidably installed on the base 1, and the two sliding columns 61 are provided with matching seats 64 on the opposite sides, and the bottom of the mounting seat 63 is provided with an inclined surface matching the matching seat 64, and a shock absorbing rod 65 is slidably installed on both sides of the mounting seat 63, and the shock absorbing rod 65 is connected to the inside of the mounting seat 63 through a third spring 66, and a guide block 67 is provided at the end of the shock absorbing rod 65 away from the mounting seat 63, and the guide block 67 is installed inside the sliding column 61 and can slide up and down.

When in use, the mounting seat 63 is installed at the bottom of the main mounting tube 2 by fastening bolts. When the base 1 is subjected to external force and vibrates up and down, the base 1 will drive the matching seat 64 to move up and down synchronously through the sliding column 61. After being squeezed by the mounting seat 63, the matching seat 64 will push the sliding column 61 to slide in the horizontal direction. At the same time, the sliding column 61 drives the shock absorbing rod 65 to move synchronously through the guide block 67. The shock absorbing rod 65 will squeeze or stretch the third spring 66, thereby absorbing the energy generated by the vibration and achieving the shock absorbing effect. In the process of the sliding column 61 pulling the guide block 67 to move horizontally, due to the action of the shock absorbing rod 65, the guide block 67 will slide up and down in the sliding column 61, thereby ensuring the relative stability of the mounting seat 63, further ensuring the relative stability of the main mounting tube 2, and achieving effective protection of the storage tank 22.

As shown in FIG. 2 , as a preferred embodiment of the present invention, a plurality of balls are installed on the side walls of the guide block 67 , and the guide block 67 is in contact with the inside of the sliding column 61 through the balls.

In the embodiment of the present invention, the ball bearings can convert the sliding friction between the guide block 67 and the sliding column 61 into rolling friction, thereby making the up and down movement of the guide block 67 smoother and reducing the wear between the components.

As shown in FIG. 1 , as a preferred embodiment of the present invention, the two sliding columns 61 are connected to each other via a damping telescopic rod 62, thereby increasing the motion damping between the two sliding columns 61, further absorbing the energy generated by vibration, and achieving effective shock absorption.

As shown in Figures 1 and 3, as a preferred embodiment of the present invention, the driving mechanism 4 includes a driving motor installed on the main mounting cylinder 2, and the output end of the driving motor is connected to a sub-gear 42. A push rod 43 is installed in each of the sub-mounting cylinders 21. The push rod 43 is connected to the inner wall of the sub-mounting cylinder 21 through threaded cooperation, and one end of the push rod 43 abuts against each sliding seat 35 in the sub-mounting cylinder 21, and a sub-gear 42 is installed at one end of the push rod 43 away from the sliding seat 35, and each of the sub-gears 42 is meshed with the main gear 41.

In the embodiment of the present invention, when in use, the driving motor is started, and the driving motor drives the main gear 41 to rotate. The main gear 41 can simultaneously drive the sub-gears 42 arranged on each sub-mounting cylinder 21 to rotate, and the sub-gears 42 drive the corresponding push rod 43 to rotate. Under the action of the threaded cooperation between the push rod 43 and the sub-mounting cylinder 21, the push rod 43 will move along the axial direction of the sub-mounting cylinder 21, thereby pushing each sliding seat 35 in the sub-mounting cylinder 21 to slide, thereby realizing the clamping and fixation of the storage tank 22.

Working principle: When in use, first place the storage tank 22 in the auxiliary installation tube 21, then start the driving mechanism 4, which drives the sliding seat 35 in each auxiliary installation tube 21 to slide synchronously along the axial direction of the auxiliary installation tube 21. The sliding seat 35 drives the clamping plate 31 to move along the radial direction of the auxiliary installation tube 21 through the second connecting rod 34, thereby clamping the storage tank 22 placed in the auxiliary installation tube 21 to achieve its fixation. After the storage tank 22 is placed in the auxiliary installation tube 21, the clamping plate 31 located near the bottom of the auxiliary installation tube 21 will support the storage tank 22. When the storage tank 22 falls on the clamping plate 31, under the squeezing action of the storage tank 22, the sliding block 51 will retract into the clamping plate 31, and the sliding block 51 will drive the connecting column 53 to move synchronously. The connecting column 53 drives the clamping plate 55 to retract through the pull rod 54, and the clamping plate 55 will be clamped on the side wall of the storage tank 22, thereby achieving preliminary fixation of the storage tank 22 and preventing the storage tank 22 from shaking at will when it is not completely fixed.

During transportation, when the base 1 is subjected to external force and vibrates up and down, the base 1 will drive the matching seat 64 to move up and down synchronously through the sliding column 61. After being squeezed by the mounting seat 63, the matching seat 64 will push the sliding column 61 to slide in the horizontal direction. At the same time, the sliding column 61 drives the shock absorbing rod 65 to move synchronously through the guide block 67. The shock absorbing rod 65 will squeeze or stretch the third spring 66, thereby absorbing the energy generated by the vibration and achieving the effect of shock absorption. In addition, in the process of the sliding column 61 pulling the guide block 67 to move horizontally, due to the action of the shock absorbing rod 65, the guide block 67 will slide up and down in the sliding column 61, thereby ensuring the relative stability of the mounting seat 63, and further ensuring the relative stability of the main mounting cylinder 2, and achieving effective protection of the storage tank 22.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A storage tank for liquefied natural gas, comprising a base, characterized in that a main mounting cylinder is arranged on the base, a plurality of auxiliary mounting cylinders for accommodating the storage tank are arranged in a circle in the main mounting cylinder, and further comprising: A fixing assembly, the fixing assembly comprising a clamping plate installed in an annular manner in the auxiliary mounting tube, two first connecting rods being rotatably installed on a side of the clamping plate close to the inner wall of the auxiliary mounting tube, and the first connecting rod being rotatably installed on the inner wall of the auxiliary mounting tube, a second connecting rod being rotatably installed on a side of the clamping plate close to the inner wall of the auxiliary mounting tube, a sliding seat being rotatably installed on an end of the second connecting rod away from the clamping plate, and the sliding seat being slidably installed on the inner wall of the auxiliary mounting tube along the axial direction of the auxiliary mounting tube, and the sliding seat being connected to the inner wall of the auxiliary mounting tube through a first spring, and a driving mechanism for driving each group of fixing assemblies to clamp the storage tank installed in the auxiliary mounting tube at the same time is also provided on the main mounting tube; and An auxiliary clamping assembly, which includes a sliding block installed in the clamping plate along the radial sliding of the auxiliary mounting tube, and the sliding block is connected to the inside of the second connecting rod through a second spring, and clamping plates are symmetrically installed on both sides of the second connecting rod, and two connecting columns are symmetrically arranged on the sliding block, and a pull rod is rotatably installed on the connecting column, and the end of the pull rod away from the connecting column is rotatably installed on the clamping plate. 2. The storage and transportation tank for liquefied natural gas according to claim 1 is characterized in that a shock absorbing assembly is also provided on the base, and the main mounting tube is installed on the base through the shock absorbing assembly. 3. The storage and transportation tank for liquefied natural gas according to claim 2 is characterized in that the shock absorbing assembly includes a mounting seat installed at the bottom of the main mounting cylinder, and two sliding columns symmetrically arranged on the base, and the sliding columns are slidably installed on the base, and matching seats are arranged on the opposite sides of the two sliding columns, and the bottom of the mounting seat is provided with an inclined surface matching the matching seat, and a shock absorbing rod is slidably installed on both sides of the mounting seat, and the shock absorbing rod is connected to the inside of the mounting seat through a third spring, and a guide block is arranged at the end of the shock absorbing rod away from the mounting seat, and the guide block is installed inside the sliding column and can slide up and down. 4. The storage and transportation tank for liquefied natural gas according to claim 3 is characterized in that a plurality of balls are installed on the side walls of the guide block, and the guide block contacts the inside of the sliding column through the balls. 5. The storage and transportation tank for liquefied natural gas according to claim 3, characterized in that the two sliding columns are connected to each other through a damping telescopic rod. 6. The storage and transportation tank for liquefied natural gas according to claim 1 is characterized in that the driving mechanism includes a driving motor installed on the main mounting tube, the output end of the driving motor is connected to a sub-gear, a push rod is installed in each of the sub-mounting tubes, the push rod is connected to the inner wall of the sub-mounting tube by threaded cooperation, and one end of the push rod is abutted against each sliding seat in the sub-mounting tube, a sub-gear is installed at one end of the push rod away from the sliding seat, and each of the sub-gears is meshed with the main gear. 7. The storage and transportation tank for liquefied natural gas according to claim 3, characterized in that the mounting seat is mounted on the bottom of the main mounting tube by fastening bolts.