An integrated mobile natural gas liquefaction unit

Abstract

This utility model relates to the field of natural gas liquefaction technology and discloses an integrated mobile natural gas liquefaction device, including a carrying plate with openings at the four corners of the top of the carrying plate. A cover is welded to the top of the carrying plate directly above each opening, and a hydraulic cylinder is installed on the top of the cover. A double-leg assembly is installed inside the hydraulic cylinder. This integrated mobile natural gas liquefaction device uses hydraulic oil to drive the liquefaction components to contact the ground when switching between the liquefaction components and the casters. In the working state, the support columns are in contact with the ground, and the casters are suspended. The entire load of the device is borne by the support columns, which are directly and stably supported on the ground. This completely eliminates the physical path of vibration transmission through the casters and causing overall device displacement, avoiding displacement caused by vibration. At the same time, the support columns provide extremely stable rigid or damped support, ensuring the stability of the device during operation.

Description

Technical Field

[0001] This utility model relates to the field of natural gas liquefaction technology, and in particular to an integrated mobile natural gas liquefaction device. Background Technology

[0002] With the development and utilization of natural gas resources, especially in remote areas, small gas fields, distributed energy, or emergency gas supply scenarios, the demand for mobile natural gas liquefaction units is increasing. Integrated mobile natural gas liquefaction units, due to their high integration, ease of transportation, and rapid deployment, have become an important technological direction for meeting these needs.

[0003] Common mobile liquefaction units are usually equipped with wheels at the bottom to enable traction and movement. However, the mechanical vibrations generated during the operation of the liquefaction unit (such as compression and cooling processes) are transmitted to the ground through the wheels. Since the wheels are in rolling contact with the ground and the friction is limited, the vibration energy can easily cause the entire unit to shift or shake, resulting in unstable operation of the equipment. This can lead to small, uncontrollable reciprocating rolling or sliding displacements, poor operational stability, and potential safety hazards. Utility Model Content

[0004] In view of the problem that existing vibrations cause the wheels to undergo minute, uncontrollable reciprocating rolling or sliding displacement on the surface, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an integrated mobile natural gas liquefaction device, which is designed to allow for the use of dual support legs when switching between them, and to suspend the wheels during operation.

[0006] To solve the above technical problems, this utility model provides the following technical solution: an integrated mobile natural gas liquefaction device, including a carrying plate and support legs installed at the bottom of the carrying plate. A liquefaction component with an air inlet and a liquid outlet is installed in the middle of the top of the carrying plate. Through holes are opened at the four corners of the top of the carrying plate. A cover is welded to the top of the carrying plate and directly above each through hole. A hydraulic cylinder is installed on the top of the cover. A double support leg assembly is installed inside the hydraulic cylinder.

[0007] The dual-leg assembly includes a horizontal tube, with vertical tubes integrally formed at both ends of the horizontal tube. Each of the two vertical tubes has a fine-tuning structure inside. One fine-tuning structure has a caster wheel installed at the bottom, and the other fine-tuning structure has a support column installed at the bottom. A first piston head is provided inside the horizontal tube, and a translation drive source for driving the first piston head to move laterally is installed at one end of the first piston head. Hydraulic oil is filled between the first piston head and the interior of the vertical tube.

[0008] As an improved technical solution, a sleeve is fitted into the middle of the horizontal tube, a T-shaped plate is welded to the top of the sleeve, and the movable end of the hydraulic cylinder is fixedly connected to the top of the T-shaped plate.

[0009] As an improved technical solution, the translation drive source includes an electric telescopic rod installed at the bottom of the T-shaped plate, and a sealing sleeve inserted at the connection end of the horizontal and vertical pipes on one side. The movable end of the electric telescopic rod is fixedly connected to a linkage plate. A first piston rod passing through the inside of the sealing sleeve is installed at the end of the linkage plate near the sealing sleeve, and the end of the first piston rod away from the linkage plate is fixedly connected to a first piston head.

[0010] As an improved technical solution, the fine-tuning structure includes a second piston head located inside the vertical tube, a second piston rod fixed at the center of the end of the second piston head away from the first piston head, and an mounting block fixedly installed at the end of the second piston rod located outside the horizontal tube.

[0011] As an improved technical solution, a spring is sleeved at one end of the second piston rod inside the vertical tube, and the spring is located between the second piston head and the bottom of the inner wall of the vertical tube.

[0012] As an improved technical solution, the hydraulic oil is located between the first piston head and the second piston head on the same side.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. This utility model uses four support columns to contact the ground, thereby increasing the friction between the support column and the ground. This helps to improve the stability of the load plate when the liquefaction component is in operation. When movement is required, the electric telescopic rod shortens and pushes the first piston head toward the universal wheel. At this time, under the action of hydraulic oil, the support column moves upward and is suspended in the air, while the universal wheel gradually contacts and abuts the ground. The two switch between the two, so that the support leg block and the support column are in a suspended state and are completely supported by the universal wheel, which facilitates the movement of the device.

[0015] 2. In this utility model, the hydraulic oil drives the liquefied component to contact the ground when switching between the universal wheels and the hydraulic oil. In the working state, the support column is in contact with the ground and the universal wheels are suspended. The entire load of the device is borne by the support column, which is directly and stably supported on the ground. This completely eliminates the physical path of vibration being transmitted through the universal wheels and causing overall displacement of the device, thus avoiding displacement of the device due to vibration. At the same time, the support column provides extremely stable rigid or damped support, ensuring the stability of the device during operation. Furthermore, the universal wheels and the support column are integrated into the same lifting mechanism, and one-button switching is achieved through hydraulic drive, reducing the complicated operation process of traditional fixed outriggers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of 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. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of an integrated mobile natural gas liquefaction device according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the double-leg assembly of an integrated mobile natural gas liquefaction device according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the horizontal pipe of an integrated mobile natural gas liquefaction device according to this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Cargo plate; 2. Support leg block; 3. Through-hole; 4. Double support leg assembly; 41. Horizontal tube; 42. Vertical tube; 43. Fine-tuning structure; 431. Second piston head; 432. Spring; 433. Second piston rod; 434. Mounting connecting block; 44. Tube sleeve; 45. T-shaped plate; 46. Electric telescopic rod; 47. Linkage plate; 48. First piston rod; 49. Sealing sleeve; 410. First piston head; 5. Cover; 6. Hydraulic cylinder; 7. Liquefaction component; 8. Casters; 9. Support column. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0023] Reference Figures 1-3 This is the first embodiment of the present invention, which provides an integrated mobile natural gas liquefaction device. This integrated mobile natural gas liquefaction device includes a carrying plate 1 and a support leg block 2 installed at the bottom of the carrying plate 1. A liquefaction component 7 with an air inlet and a liquid outlet is installed in the middle of the top of the carrying plate 1. The liquefaction component 7 is a mature existing technology, so it will not be described in detail. There are openings 3 at the four corners of the top of the carrying plate 1. A cover 5 is welded to the top of the carrying plate 1 and directly above each opening 3. A hydraulic cylinder 6 is installed on the top of the cover 5 and is located inside the cover 5. A double support leg assembly 4 is installed inside the hydraulic cylinder 6 and passes through the inside of the opening 3.

[0024] The dual-leg assembly 4 includes a horizontal tube 41, with vertical tubes 42 integrally formed at both ends of the horizontal tube 41. Each of the two vertical tubes 42 has a fine-tuning structure 43 inside, and the movable end of the fine-tuning structure 43 is located at the end of the vertical tube 42 away from the horizontal tube 41. A caster wheel 8 is installed at the bottom of one fine-tuning structure 43, and a support column 9 is installed at the bottom of the other fine-tuning structure 43. The four support columns 9 make contact with the ground to increase the friction between the support and the ground, thereby improving the stability of the load plate 1 in the working state of the liquefaction assembly 7. A first piston head 410 is provided inside the horizontal tube 41, and a translation drive source for driving the first piston head 410 to move laterally is installed at one end of the first piston head 410. Hydraulic oil is filled between the first piston head 410 and the interior of the vertical tube 42.

[0025] When switching between the hydraulically driven liquefied component 7 and the casters 8, the components contact the ground. In the working state, the support column 9 is in contact with the ground, while the casters 8 are suspended. The entire load of the device is borne by the support column 9, which is directly and stably supported on the ground. This completely eliminates the physical path of vibration transmission through the casters 8, preventing displacement of the entire device due to vibration. At the same time, the support column 9 provides extremely stable rigid or damped support, ensuring the stability of the device during operation. Furthermore, the casters 8 and the support column 9 are integrated into the same lifting mechanism, enabling one-button switching via hydraulic drive, reducing the complex operation process of traditional fixed outriggers.

[0026] A sleeve 44 is fitted into the middle of the horizontal tube 41, and a T-shaped plate 45 is welded to the top of the sleeve 44. The movable end of the hydraulic cylinder 6 is fixedly connected to the top of the T-shaped plate 45.

[0027] The translation drive source includes an electric telescopic rod 46 installed at the bottom of the T-shaped plate 45, and a sealing sleeve 49 inserted at the connection end of the horizontal tube 41 and the vertical tube 42 on one side. The movable end of the electric telescopic rod 46 is fixedly connected to a linkage plate 47. A first piston rod 48 passing through the inside of the sealing sleeve 49 is installed at the end of the linkage plate 47 near the sealing sleeve 49, and the end of the first piston rod 48 away from the linkage plate 47 is fixedly connected to the first piston head 410.

[0028] The fine-tuning structure 43 includes a second piston head 431 located inside the vertical tube 42. A second piston rod 433 is fixed at the center of the end of the second piston head 431 away from the first piston head 410. A sliding hole for the second piston rod 433 to pass through is provided on the vertical tube 42. A mounting block 434 is fixedly installed at the end of the second piston rod 433 located outside the horizontal tube 41.

[0029] A spring 432 is sleeved at one end of the second piston rod 433 inside the vertical tube 42, and the spring 432 is located between the second piston head 431 and the bottom of the inner wall of the vertical tube 42.

[0030] The hydraulic oil is located between the first piston head 410 and the second piston head 431 on the same side.

[0031] The working principle of this utility model is as follows: The electric telescopic rod 46 extends and drives the linkage plate 47 to move away from the sleeve 44. Under the linkage action of the first piston rod 48, the first piston head 410 is pulled towards the support column 9. When the first piston head 410 moves inside the horizontal tube 41, it will compress the hydraulic oil on the same side as the support column 9. The second piston rod 433 on the same side of the micro-adjustment structure 43 extends outward towards the vertical tube 42, and the second piston rod 433 on the other side of the micro-adjustment structure 43 retracts into the vertical tube 42, that is, the support column 9 extends towards the ground, and the universal wheel 8 moves away from the ground and is suspended in the air.

[0032] When movement is required, the electric telescopic rod 46 shortens, pushing the first piston head 410 toward the universal wheel 8. At this time, under the action of hydraulic oil, the support column 9 moves upward and is suspended in the air, while the universal wheel 8 gradually contacts and abuts the ground. The two switch between each other, so that the outrigger block 2 and the support column 9 are in a suspended state, completely supported by the universal wheel 8, which facilitates the movement of the device.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated mobile natural gas liquefaction device, comprising a loading platform (1) and support legs (2) mounted on the bottom of the loading platform (1), characterized in that: A liquefaction component (7) with an air inlet and a liquid outlet is installed in the middle of the top of the loading plate (1). There are openings (3) at the four corners of the top of the loading plate (1). A cover (5) is welded to the top of the loading plate (1) and directly above each opening (3). A hydraulic cylinder (6) is installed on the top of the cover (5). A double support leg assembly (4) is installed inside the hydraulic cylinder (6). The double-leg assembly (4) includes a horizontal tube (41), and vertical tubes (42) are integrally formed at both ends of the horizontal tube (41). Each of the two vertical tubes (42) is provided with a fine-tuning structure (43). One fine-tuning structure (43) is equipped with a caster wheel (8) at the bottom and the other fine-tuning structure (43) is equipped with a support column (9) at the bottom. A first piston head (410) is provided inside the horizontal tube (41), and a translation drive source for driving the first piston head (410) to move laterally is installed at one end of the first piston head (410). Hydraulic oil is filled between the first piston head (410) and the interior of the vertical tube (42).

2. The integrated mobile natural gas liquefaction unit according to claim 1, characterized in that: A sleeve (44) is fitted into the middle of the horizontal tube (41), and a T-shaped plate (45) is welded to the top of the sleeve (44). The movable end of the hydraulic cylinder (6) is fixedly connected to the top of the T-shaped plate (45).

3. The integrated mobile natural gas liquefaction unit according to claim 2, characterized in that: The translation drive source includes an electric telescopic rod (46) installed at the bottom of the T-shaped plate (45) and a sealing sleeve (49) inserted at the connection end of the horizontal tube (41) and the vertical tube (42) on one side. The movable end of the electric telescopic rod (46) is fixedly connected to a linkage plate (47). The end of the linkage plate (47) near the sealing sleeve (49) is equipped with a first piston rod (48) that passes through the inside of the sealing sleeve (49), and the end of the first piston rod (48) away from the linkage plate (47) is fixedly connected to a first piston head (410).

4. The integrated mobile natural gas liquefaction unit according to claim 3, characterized in that: The fine-tuning structure (43) includes a second piston head (431) located inside the vertical tube (42), a second piston rod (433) is fixed at the center of the end of the second piston head (431) away from the first piston head (410), and an installation block (434) is fixedly installed at the end of the second piston rod (433) located outside the horizontal tube (41).

5. The integrated mobile natural gas liquefaction unit according to claim 4, characterized in that: The second piston rod (433) is fitted with a spring (432) at one end inside the vertical tube (42), and the spring (432) is located between the second piston head (431) and the bottom of the inner wall of the vertical tube (42).

6. The integrated mobile natural gas liquefaction unit according to claim 5, characterized in that: The hydraulic oil is located between the first piston head (410) and the second piston head (431) on the same side.

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