LNG pry installation convenient operation structure

Abstract

The utility model relates to the technical field of LNG skid-mounted equipment component, and disclose a kind of LNG skid-mounted convenient operation installation structure, and the left side of electric heating tower is equipped with air inlet pipe, top is equipped with air outlet pipe and horizontal gas conveying pipe connection, horizontal gas conveying pipe side is equipped with integrated quick-connection bridge module, this module is connected with LNG skid-mounted equipment base through universal adjusting support assembly, integrated quick-connection bridge module inside adopts layered structure, from bottom to top including electrical bin, safety isolation chamber and process pipeline bin, universal adjusting support assembly includes installation platform, ball head, adjusting seat, adjusting screw, threaded support rod and connecting bottom plate, through integrated quick-connection bridge module, pipeline, electrical, signal interface are centrally designed, realize " single point to single point " quick docking, greatly improve installation efficiency, through universal adjusting support assembly, the centering error between equipment and external foundation can be compensated, reduce installation precision requirement, adapt to complex working conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of LNG skid-mounted equipment components, specifically a convenient operation and installation structure for LNG skid-mounted equipment. Background Technology

[0002] With the rapid development of LNG (liquefied natural gas) supply systems, skid-mounted equipment has been widely used in urban gas peak shaving and industrial fuel supply due to its advantages such as mobility, small footprint, safety and environmental protection.

[0003] Currently, common LNG skid-mounted equipment typically employs decentralized piping and electrical connections during installation, transportation, and docking, resulting in problems such as low installation efficiency, poor docking accuracy, and complex operation. For example, CN208670589U discloses an LNG skid-mounted equipment, which includes an LNG skid-mounted equipment body. The skid-mounted equipment body is set on a base plate welded from channel steel. The LNG skid-mounted equipment body contains an electric heating tower and a pressure regulating, metering, and odor-adding skid; an air inlet pipe is provided on the left side of the electric heating tower.

[0004] As can be seen from the above-mentioned publicly available scheme, the equipment has scattered interfaces, low docking efficiency, and lacks an effective centering error compensation mechanism. In particular, after the equipment is moved to a new site, docking with external pipelines and electrical systems requires a lot of manual operation, which is time-consuming and labor-intensive. Furthermore, centering errors can easily lead to poor sealing or connection failures, affecting the rapid commissioning and safe operation of the equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a convenient operation and installation structure for LNG skid-mounted equipment, thereby solving the problem of low installation efficiency due to the lack of an effective centering error compensation mechanism in existing LNG skid-mounted equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient operation and installation structure for LNG skid-mounted equipment, including an LNG skid-mounted equipment base, and an electric heating tower, an explosion-proof electrical control cabinet, and an LNG vaporization system mounted on the base. The electric heating tower has an inlet pipe on its left side and an outlet pipe at its top connected to a horizontal conveying gas pipe. An integrated quick-connect cable tray module is located on one side of the horizontal conveying gas pipe. This module is connected to the LNG skid-mounted equipment base via a universal adjustable bracket assembly. The integrated quick-connect cable tray module has a layered structure, including an electrical compartment, a safety isolation chamber, and a process piping compartment from bottom to top. The universal adjustable bracket assembly includes an installation platform, a ball joint, an adjusting seat, an adjusting screw, a threaded support rod, and a connecting base plate. The integrated quick-connect cable tray module centrally designs the piping, electrical, and signal interfaces, enabling "point-to-point" rapid docking and significantly improving installation efficiency. The universal adjustable bracket assembly can compensate for alignment errors between the equipment and the external foundation, reducing installation accuracy requirements and adapting to complex working conditions.

[0007] Preferably, the process piping compartment is equipped with a multi-channel rotary quick-connect flange, which integrates at least two inlet and two outlet pipe interfaces, and synchronously presses the sealing rings of all pipe ports through a rotary cam structure to achieve rapid connection between the equipment and external pipelines.

[0008] Preferably, the electrical compartment is equipped with an explosion-proof electrical multi-functional plug box, which integrates a high-power power plug, a multi-core signal plug, and a fiber optic quick connector. All interfaces are equipped with anti-misinsertion structures for centralized connection of power and signal lines.

[0009] Preferably, the mating surface of the integrated quick-connect cable tray module is provided with a sealing and purging system, including a sealing ring and a purging interface. The purging interface of the sealing and purging system is connected to an inert gas source to remove combustible gas from the interface blind area after connection.

[0010] Preferably, the mating surface of the integrated quick-connect cable tray module is provided with a locking mechanism, including a guide sleeve, a positioning sleeve and a central linkage handle, to achieve quick locking and releasing.

[0011] Preferably, the module has a visual status indicator window on its outer side, including a pressure-resistant window and indicator lights, to improve operational safety and reliability.

[0012] Preferably, the integrated quick-connect cable tray module is equipped with a sealing plug in the non-connected state to protect the interface from contamination.

[0013] Compared with the prior art, this utility model provides an LNG skid-mounted structure that is easy to operate and install, and has the following advantages:

[0014] The integrated quick-connect cable tray module centrally designs the pipe, electrical, and signal interfaces, enabling "point-to-point" rapid connection and significantly improving installation efficiency. The universal adjustable bracket assembly can compensate for the alignment error between the equipment and the external foundation, reducing the installation accuracy requirements and adapting to complex working conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the integrated quick-connect cable tray module structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the universal adjustment bracket assembly of this utility model;

[0018] Figure 4 yes Figure 2 A partial sectional view;

[0019] Figure 5 yes Figure 3 The installation platform structure bottom view.

[0020] In the diagram: 1. LNG skid-mounted equipment base; 2. Electric heating tower; 3. Explosion-proof electrical control cabinet; 4. LNG vaporization system; 5. Gas outlet pipe; 6. Horizontal gas delivery pipe; 7. Integrated quick-connect cable tray module; 71. Process piping compartment; 72. Safety isolation chamber; 73. Electrical compartment; 74. Sealing and purging system; 741. Sealing ring; 742. Purging interface; 75. Locking mechanism; 751. Guide sleeve; 752. Positioning sleeve; 753. Central linkage handle; 76. Visual status indicator window; 761. Pressure resistant window; 762. Indicator light; 77. Multi-channel rotary quick-connect flange; 78. Explosion-proof electrical multi-functional plug-in box; 79. Sealing plug; 8. Universal adjustment bracket assembly; 81. Installation platform; 82. Ball head; 83. Adjustment seat; 84. Adjustment screw; 85. Threaded support rod; 86. Connecting base plate. Detailed Implementation

[0021] 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.

[0022] This utility model provides a technical solution: a convenient operation and installation structure for LNG skid-mounted equipment, including an LNG skid-mounted equipment base 1. The equipment is also equipped with shock-absorbing pads, a pressure regulating meter or LNG odorization system, and climbing ladders, as well as an electric heating tower 2, an explosion-proof electrical control cabinet 3, and an LNG vaporization system 4, all mounted on the base. The explosion-proof electrical control cabinet 3 is directly connected to an explosion-proof electrical multi-functional plug-in box 78 via a pre-fabricated cable bundle. All power supplies (such as power to external pumps), control signals (such as ESD emergency stop), and instrument signals (such as pressure and temperature remote transmission) requiring external communication are led out from the explosion-proof electrical control cabinet 3 to the explosion-proof electrical multi-functional plug-in box 78. The explosion-proof electrical multi-functional plug-in box 78 serves as a standardized electrical extension interface for the explosion-proof electrical control cabinet 3, avoiding cumbersome secondary wiring on site. The electric heating tower 2 has an air inlet pipe on its left side, which is used to connect to the LNG storage tank or vaporizer, and an air outlet pipe 5 at its top. Connected to the horizontal gas delivery pipe 6, an integrated quick-connect cable tray module 7 is provided on one side of the horizontal gas delivery pipe 6. This module is connected to the LNG skid-mounted equipment base 1 through the universal adjustment bracket assembly 8. The integrated quick-connect cable tray module 7 adopts a layered structure, including an electrical compartment 73, a safety isolation chamber 72, and a process pipeline compartment 71 from bottom to top. The universal adjustment bracket assembly 8 includes an installation platform 81, a ball head 82, an adjustment seat 83, an adjustment screw 84, a threaded support rod 85, and a connecting base plate 86. The lower end of the universal adjustment bracket assembly 8 is fixed to the LNG skid-mounted equipment base 1 by bolts. This allows the entire integrated quick-connect cable tray module 7 to absorb vibration using shock-absorbing pads. The adjustment screw 84 and the threaded support rod 85 of the universal adjustment bracket assembly 8 cooperate to achieve height adjustment, and the ball head 82 and the adjustment seat 83 achieve angle deflection, which is used to realize multi-degree-of-freedom fine adjustment and precise alignment of the integrated quick-connect cable tray module 7.

[0023] The process piping compartment 71 is equipped with a multi-channel rotary quick-connect flange 77. The outlet pipe of the multi-channel rotary quick-connect flange 77 is directly connected to the horizontal gas delivery pipe 6. This means that the gas processed from the LNG vaporization system 4 is output externally through this quick-connect interface. The inlet pipe of the multi-channel rotary quick-connect flange 77 is connected to the outlet of the pressure regulator or LNG odorization system through an internal delivery pipe (such as a DN80 / DN100 pipe). Key valves such as shut-off valves can be integrated inside the interface module or on its adjacent pipeline. The multi-channel rotary quick-connect flange 77 integrates at least two inlet and two outlet pipe interfaces, and synchronously presses the sealing rings of all pipe ports through a rotary cam structure. The rotary cam structure includes a cam ring, a driven pin, an integrated valve core cluster, a return spring, a positioning steel ball, and corresponding recesses on the cam ring. The connection with the stationary flange, the connection between the driven pin and the integrated valve core cluster, the connection between the driven pin and the cam ring, and the connection between the integrated valve core cluster and the stationary flange are all described. The two ends of the return spring are respectively pressed against the drive back plate of the stationary flange and the integrated valve core cluster, and are always in a pre-compressed state to provide a return force to the valve core cluster in the direction of release. The steel ball is elastically engaged with the return spring, and the positioning steel ball is engaged with the recess on the outer edge or end face of the cam ring. When the recess rotates to the bottom of the steel ball, the steel ball is pushed into the recess under the action of the spring to achieve position locking. This is used to realize the rapid connection between the equipment and the external pipeline. The electrical compartment 73 is equipped with an explosion-proof electrical multi-functional plug box 78. The explosion-proof electrical multi-functional plug box 78 integrates a high-power power plug, a multi-core signal plug and a fiber optic quick connector. All interfaces are equipped with an anti-misinsertion structure for centralized connection of power and signal lines.

[0024] The mating surface of the integrated quick-connect cable tray module 7 is provided with a sealing and purging system 74, including a sealing ring 741 and a purging interface 742. The purging interface 742 of the sealing and purging system 74 is connected to an inert gas source, which is a small pressure swing adsorption or membrane separation nitrogen generator unit installed on a skid-mounted device and connected to the purging interface 742 through a pipeline. It is used to remove combustible gas from the interface blind area after connection. The mating surface of the integrated quick-connect cable tray module 7 is provided with a locking mechanism 75, including a guide sleeve 751, a positioning sleeve 752 and a central linkage handle 753, to achieve quick locking and release.

[0025] The module has a visual status indicator window 76 on the outside, including a pressure-resistant window 761 and an indicator light 762, which improves operational safety and reliability. The integrated quick-connect cable tray module 7 has a sealing plug 79 in the non-connected state. The sealing plug 79 is detachably installed on the mating surface of the integrated quick-connect cable tray module 7 to protect each interface from contamination in the non-connected state.

[0026] The working principle of this device is as follows: After the equipment is in place, the position of the integrated quick-connect cable tray module 7 is adjusted by the universal adjustment bracket assembly 8 to align it with the external interface. Pushing the module causes the guide sleeve 751 to engage with the positioning sleeve 752, and rotating the central linkage handle 753 locks it in place. Subsequently, the pipeline and electrical connections are completed through the multi-channel rotary quick-connect flange 77 and the explosion-proof electrical multi-functional plug-in box 78, respectively. After connection, inert gas is introduced through the purge port 742 to purge any gas in the blind zone. Finally, the connection status is confirmed through the visual status indicator window 76. The modular and standardized interface design supports plug-and-play functionality, facilitating equipment transportation, maintenance, and upgrades.

[0027] 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 process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convenient operation and installation structure for LNG skid-mounted equipment, comprising an LNG skid-mounted equipment base (1), and an electric heating tower (2), an explosion-proof electrical control cabinet (3), and an LNG vaporization system (4) mounted on the base, wherein the electric heating tower (2) has an inlet pipe on its left side and an outlet pipe (5) at its top connected to a horizontal conveying gas pipe (6), characterized in that: An integrated quick-connect cable tray module (7) is provided on one side of the horizontal gas delivery pipe (6). This module is connected to the LNG skid-mounted equipment base (1) through a universal adjustment bracket assembly (8). The integrated quick-connect cable tray module (7) has a layered structure inside, including an electrical compartment (73), a safety isolation chamber (72), and a process pipeline compartment (71) from bottom to top. The universal adjustment bracket assembly (8) includes an installation platform (81), a ball head (82), an adjustment seat (83), an adjustment screw (84), a threaded support rod (85), and a connecting base plate (86).

2. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The process piping compartment (71) is equipped with a multi-channel rotary quick-connect flange (77), which integrates at least two inlet and two outlet pipe interfaces and synchronously presses the sealing rings of all pipe ports through a rotary cam structure.

3. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The electrical compartment (73) is equipped with an explosion-proof electrical multi-functional plug box (78), which integrates a high-power power plug, a multi-core signal plug and a fiber optic quick connector. All interfaces are equipped with anti-misinsertion structures.

4. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The integrated quick-connect cable tray module (7) has a sealing and purging system (74) on its mating surface, including a sealing ring (741) and a purging interface (742). The purging interface (742) of the sealing and purging system (74) is connected to an inert gas source.

5. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The mating surface of the integrated quick-connect cable tray module (7) is provided with a locking mechanism (75), including a guide sleeve (751), a positioning sleeve (752) and a central linkage handle (753).

6. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The module is provided with a visual status indicator window (76) on the outside, including a pressure-resistant window (761) and an indicator light (762).

7. The LNG skid-mounted easy-to-operate and install structure according to claim 1, characterized in that: The integrated quick-connect cable tray module (7) is equipped with a sealing plug (79) in the non-connected state.

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