LNG fuel supply system and method with hidden integrated structural unit

Abstract

The present invention discloses an LNG fuel supply system and method with a concealed integrated structural unit, relating to the technical field of fuel supply systems, a gas storage unit and a gas supply processing mechanism, wherein the gas storage unit comprises a packaging box, the inner wall of the packaging box is fixedly mounted with a bottom plate, the top of the bottom plate is fixedly mounted with two support frames, the tops of the two support frames are fixedly mounted with a gas storage tank, the tops of the gas storage tanks are fixedly connected with a connecting pipe for communicating with the gas supply processing mechanism; the present invention arranges the gas storage tank and the entire gas storage unit below the deck to realize a concealed design of the gas storage unit; by arranging structures such as a mounting frame and an assembly plate, the installation of each unit of the gas supply processing mechanism is realized, making the displacement adjustment and installation of each unit of the gas supply processing mechanism more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel supply systems, and in particular to an LNG fuel supply system and method with a hidden integrated structural unit. Background Art

[0002] The function of a marine LNG fuel supply system is to vaporize, heat, and pressurize the liquefied natural gas stored on board, and then supply it to the ship's main engine or other gas-consuming equipment in a timely and quantitative manner. The LNG supply system consists of several modules, including: an LNG storage and monitoring system, an LNG filling station, an LNG vaporization / heating system, a heating circulation system, LNG filling and gas supply pipelines, a control system, and a safety system.

[0003] Patent document CN212130637U discloses a concealed integrated structure of an LNG fuel supply system that is easy to ventilate. The structure is fixed to the cabin by bottom and upper supports, and the processing room is embedded in the deck. The existing LNG fuel supply system has various functional units that are mostly centrally fixed and installed, which makes it inconvenient to perform operations such as shifting, adjusting, repairing and installing each unit. Moreover, the centralized fixed arrangement of multiple functional units is also inconvenient for the installation layout of other marine equipment. Therefore, it is necessary to propose improvements. Summary of the Invention

[0004] The object of the present invention is to provide an LNG fuel supply system and method with a hidden integrated structural unit to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An LNG fuel supply system with a concealed integrated structural unit includes a gas storage unit and a gas supply processing mechanism. The gas storage unit includes a packaging box embedded below the hull deck. A bottom plate is fixedly mounted on the inner wall of the packaging box. Two support frames are fixedly mounted on the top of the bottom plate. Gas storage tanks are fixedly mounted on the tops of the two support frames by bolts. The tops of the gas storage tanks are fixedly connected to a connecting pipe for communicating with the gas supply processing mechanism.

[0007] The air supply processing mechanism includes a mounting frame, a mounting groove is opened on the hull deck, the inner wall of the mounting groove is fixedly connected to the mounting frame, the top of the mounting frame is slidably provided with a supporting frame, the supporting frame includes two side panels, an assembly plate is slidably installed between the two side panels, the top of the assembly plate is fixedly installed with an air supply processing mechanism, the air supply processing mechanism includes a filling unit, a gasification heating unit, a filling air supply pipeline, a control system, etc. The gasification heating unit includes a heating box, and the outer wall of the heating box is fixedly connected to a temperature control unit.

[0008] As a further solution of the present invention: a ventilation unit is arranged between two adjacent gas storage tanks, and the ventilation unit includes an air supply rack, air inlets are opened at the bottom of both sides of the air supply rack, and air outlets are opened at the top of both sides of the air supply rack, and the top of the inner wall of the air outlet is inclined upward, and a ventilation fan is fixedly installed on the inner wall of the air supply rack, and an air duct is fixedly connected above the ventilation fan, and the size of the inner cavity of the air duct gradually decreases from bottom to top.

[0009] As a further solution of the present invention: a heat conducting plate is fixedly connected to the middle of the base plate, and wind guide plates are fixedly connected to both sides of the top of the heat conducting plate, and one end of the two wind guide plates is respectively arranged corresponding to one side of the two air inlets, and a gap is left between the bottom of the base plate and the bottom of the inner wall of the packaging box, and through openings are opened at both ends of the gap, and drainage outlets are opened on both sides of the base plate, and the drainage outlets are connected to the gap.

[0010] As a further solution of the present invention: sliding grooves are provided on both sides of the assembly plate, one side of the two side plates is fixedly connected with an assembly block, the assembly block is slidably connected to the sliding groove, the tops of the two sliding grooves are threaded with a plurality of locking bolts, and one end of the assembly plate is fixedly connected with a docking rod.

[0011] As a further solution of the present invention: a heater is fixedly installed in the middle of the inner wall of the heating box, and both ends of the heater are fixedly connected to a heating tube; a filter plate is fixedly connected to one side of the inner wall of the heating box, and a plurality of filter air holes are opened on one side of the filter plate, and the top of the filter plate is fixedly connected to the filter tube, and the top of the heating box is fixedly connected to the filter box, and a filter air pump is fixedly installed on the inner wall of the filter box, and the input end of the filter air pump is fixedly connected to the filter, one end of the filter is fixedly connected to the filter tube, and the output end of the air pump is fixedly connected to a return pipe, and one end of the return pipe extends into the heating box.

[0012] As a further solution of the present invention: the temperature control unit includes a ventilation hood, one end of the ventilation hood is fixedly connected to an air inlet pipe, the other end of the ventilation hood is fixedly connected to an air outlet pipe, several heat sinks are fixedly connected between the two sides of the inner wall of the ventilation hood and the outer wall of the heating box, the middle of the heat sink is fixedly connected to an electric heating wire, and one end of the air inlet pipe is fixedly connected to a ventilation air pump.

[0013] The present invention also provides an LNG fuel supply method with a concealed integrated structural unit. By arranging the gas storage tank in a packaging box, and arranging the packaging box under the deck, a concealed design of the gas storage unit is realized, and a ventilation unit is arranged in conjunction with it to discharge the natural gas leaked from the gas storage tank; the gas supply operation is realized by a gas supply processing mechanism slidingly arranged on a support frame, making the displacement adjustment and installation of each unit of the gas supply processing mechanism more convenient; when the gasification heating unit is working, the water vapor and the leaked natural gas inside the heating box are filtered and removed, and the working temperature of the gasification heating unit is adjusted by arranging a temperature control unit.

[0014] Compared with the prior art, the present invention has the following advantages: the gas storage tank and the entire gas storage unit are arranged below the deck, thereby realizing a concealed design of the gas storage unit; the installation of the various units of the gas supply processing mechanism is realized by providing structures such as a mounting frame and an assembly plate, making the displacement adjustment and installation of the various units of the gas supply processing mechanism more convenient;

[0015] The present invention forms a cavity between the bottom plate and the inner wall of the packaging box, thereby facilitating air flow and achieving the diversion and discharge of water such as rainwater. In conjunction with the air intake operation of the air inlet, the bottom plate is quickly cooled, thereby achieving the cooling of the location where the gas storage tank is located, ensuring the storage temperature is appropriate and quickly blowing and dispersing the escaped natural gas.

[0016] The present invention provides a filter air pump and other structures to drive the circulation of air inside the heating box and remove water vapor and natural gas therein, thereby preventing water vapor from adhering to and condensing on structures such as the heater or heating tube, affecting the operation of the heater. At the same time, the safety of equipment operation is improved by filtering and dispersing the natural gas; by providing a temperature control unit, the working environment temperature of the heating box and the heater as a whole is adjusted to reduce the influence of the external environment temperature on the working state of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 is a cross-sectional view of the gas storage unit of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the assembly plate of the present invention;

[0020] Figure 4 is a side sectional view of the gasification heating unit of the present invention;

[0021] Figure 5 It is a top cross-sectional view of the gasification heating unit of the present invention.

[0022] In the figure: 1. Gas storage tank; 2. Support frame; 3. Packaging box; 4. Air supply frame; 5. Ventilation fan; 6. Air duct; 7. Air outlet; 8. Side panel; 9. Assembly plate; 10. Sliding groove; 11. Docking rod; 12. Mounting frame; 13. Air guide cover plate; 14. Bottom plate; 15. Drain outlet; 16. Heat conduction plate; 17. Through port; 18. Filter box; 19. Filter air pump; 20. Filter tube; 21. Filter plate; 22. Heater; 23. Heat sink; 24. Heating box; 25. Air inlet pipe; 26. Ventilation hood; 27. Filter air holes. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 In an embodiment of the present invention, an LNG fuel supply system with a hidden integrated structural unit includes a gas storage unit and a gas supply processing mechanism. The gas storage unit includes a packaging box 3, which is embedded below the hull deck. In this way, the gas storage tank 1 and the entire gas storage unit are located below the deck, realizing a hidden design of the gas storage unit.

[0025] The inner wall of the packaging box 3 is fixedly mounted with a bottom plate 14, and two support frames 2 are fixedly mounted on the top of the bottom plate 14. The tops of the two support frames 2 are fixedly mounted with gas storage tanks 1 by bolts, and the tops of the gas storage tanks 1 are fixedly connected with connecting pipes for communicating with the gas supply processing mechanism;

[0026] The air supply processing mechanism includes a mounting frame 12, a mounting groove is opened on the hull deck, the inner wall of the mounting groove is fixedly connected to the mounting frame 12, and a supporting frame is slidably provided on the top of the mounting frame 12. The supporting frame includes two side panels 8, and an assembly plate 9 is slidably installed between the two side panels 8. The air supply processing mechanism is fixedly installed on the top of the assembly plate 9. The air supply processing mechanism includes a gasification heating unit. The filling unit, filling air supply pipeline, control system and other components of the above-mentioned air supply processing mechanism are all implemented using existing technical means.

[0027] A ventilation unit is provided between two adjacent gas storage tanks 1. The ventilation unit includes an air supply rack 4. Air inlets are provided at the bottoms on both sides of the air supply rack 4. Air outlets 7 are provided at the tops on both sides of the air supply rack 4. The tops of the inner walls of the air outlets 7 are tilted upward, thereby guiding the direction of the outgoing airflow so that the natural gas escaping from the connection positions of the top connecting pipes of the gas storage tanks 1 on both sides can be better blown and discharged. A ventilation fan 5 is fixedly installed on the inner wall of the air supply rack 4. An air duct 6 is fixedly connected to the top of the ventilation fan 5. The size of the inner cavity of the air duct 6 gradually decreases from bottom to top, thereby increasing the air outlet speed of the air outlets 7 on both sides.

[0028] A heat conducting plate 16 is fixedly connected to the middle of the bottom plate 14, and a gap is left between the bottom of the bottom plate 14 and the bottom of the inner wall of the packaging box 3. Through holes 17 are provided at both ends of the gap, and drainage holes 15 are provided on both sides of the bottom plate 14, which are connected to the gap. By setting a cavity between the bottom plate 14 and the inner wall of the packaging box 3, the flow of air is facilitated and the drainage of water such as rainwater is facilitated. In conjunction with the air intake operation of the air inlet, the bottom plate 14 is quickly cooled, and then the support frame 2 and the gas tank 1 are cooled to ensure that the storage temperature is appropriate.

[0029] In order to further improve the cooling effect of the bottom plate 14; both sides of the top of the heat conducting plate 16 are fixedly connected with the air guide plate 13, and one end of the two air guide plates 13 is respectively set corresponding to one side of the two air inlets;

[0030] Sliding grooves 10 are provided on both sides of the assembly plate 9, and one side of the two side plates 8 is fixedly connected with an assembly block, which is slidably connected to the sliding groove 10, and the tops of the two sliding grooves 10 are threadedly connected with several locking bolts. In the specific implementation, the assembly plates 9 can be set to multiple, and one assembly plate 9 is fixedly connected to a docking rod 11 at one end close to the other assembly plate 9, and several docking interfaces are provided at one end of the other assembly plate 9. Several docking rods 11 are slidably connected to several docking interfaces, so as to realize the docking limit of multiple assembly plates 9; by setting structures such as the mounting frame 12 and the assembly plate 9, the installation of each unit of the air supply processing mechanism is realized, making the displacement adjustment and installation of each unit of the air supply processing mechanism more convenient.

[0031] The gasification heating unit includes a heating box 24, a heater 22 is fixedly installed in the middle of the inner wall of the heating box 24, and both ends of the heater 22 are fixedly connected to a heating pipe; a filter plate 21 is fixedly connected to one side of the inner wall of the heating box 24, and a plurality of filter air holes 27 are opened on one side of the filter plate 21, and a filter pipe 20 is fixedly connected to the top of the filter box 24. A filter box 18 is fixedly connected to the top of the heating box 24, and a filter air pump 19 is fixedly installed on the inner wall of the filter box 18. The input end of the filter air pump 19 is fixedly connected to the filter, one end of the filter is fixedly connected to the filter pipe 20, and the output end of the air pump is fixedly connected to the return pipe, and one end of the return pipe extends into the heating box 24; by providing structures such as the filter air pump 19, the air inside the heating box 24 is driven to circulate and the water vapor and natural gas therein are removed, so as to avoid water vapor adhering to and condensing on structures such as the heater 22 or the heating pipe, affecting the operation of the heater 22. At the same time, the safety of the equipment operation is improved by filtering and dispersing the natural gas.

[0032] The outer wall of the heating box 24 is fixedly connected to a temperature control unit; the temperature control unit includes a ventilation hood 26, one end of the ventilation hood 26 is fixedly connected to an air inlet pipe 25, and the other end of the ventilation hood 26 is fixedly connected to an air outlet pipe. Several heat sinks 23 are fixedly connected between the two sides of the inner wall of the ventilation hood 26 and the outer wall of the heating box 24, the middle of the heat sink 23 is fixedly connected to a heating wire, and one end of the air inlet pipe 25 is fixedly connected to a ventilation air pump; by setting the temperature control unit, the overall working environment temperature of the heating box 24 and the heater 22 is adjusted to reduce the influence of the external environment temperature on the working state of the heater 22. When cooling is required, air can be blown to the heat sinks 23 on both sides by the external ventilation air pump for cooling. When heating is required, the heating wire can be started to heat the air blown by the ventilation air pump, thereby achieving heating of the heating box 24.

[0033] When the present invention is in use, the Tianya heater in the gas storage tank 1 is led out through the connecting pipe and guided and transported by the pipeline and the filling control mechanism. When the natural gas passes through the gasification heating unit, the heater 22 heats and gasifies the natural gas and then sends it out through the pipeline.

[0034] When the gas storage tank 1 is supplied with gas, the ventilation unit starts working, and the rotation of the ventilation fan 5 draws air in from the air inlet, and then sends it out from the air outlets 7 on both sides through the air guide pipe 6. The sent air is blown to the two gas storage tanks 1 respectively to disperse the natural gas that escapes.

[0035] When the gasification heating unit is working, the filter air pump 19 is started, and the air inside the heating box 24 is sucked into the filter holes 27 on the filter plate 21. The water vapor and natural gas in the air are filtered out by the filter and then sent back through the return pipe.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. LNG fuel supply system with hidden integrated structural unit, characterized by , comprising a gas storage unit and a gas supply processing mechanism, the gas storage unit comprising a packaging box (3), the inner wall of the packaging box (3) being fixedly mounted with a bottom plate (14), the top of the bottom plate (14) being fixedly mounted with two support frames (2), the tops of the two support frames (2) being fixedly mounted with a gas storage tank (1), the tops of the gas storage tanks (1) being fixedly connected with a connecting pipe; The air supply processing mechanism comprises a mounting frame (12), a support frame is slidably provided on the top of the mounting frame (12), the support frame comprises two side panels (8), an assembly plate (9) is slidably installed between the two side panels (8), the air supply processing mechanism is fixedly installed on the top of the assembly plate (9), the air supply processing mechanism comprises a gasification heating unit, the gasification heating unit comprises a heating box (24), and a temperature control unit is provided on the outer wall of the heating box (24); A ventilation unit is provided between the two gas storage tanks (1), the ventilation unit comprising an air supply frame (4), air inlets being provided at the bottoms of both sides of the air supply frame (4), air outlets (7) being provided at the tops of both sides of the air supply frame (4), a ventilation fan (5) being fixedly mounted on the inner wall of the air supply frame (4), and an air guide duct (6) being provided above the ventilation fan (5); Sliding grooves (10) are provided on both sides of the assembly plate (9), and one side of each of the two side plates (8) is fixedly connected with an assembly block, the assembly block is slidably connected to the sliding groove (10), and the tops of the two sliding grooves (10) are threadedly connected with a plurality of locking bolts; A heater (22) is fixedly installed in the middle of the inner wall of the heating box (24); a filter plate (21) is fixedly connected to one side of the inner wall of the heating box (24); a plurality of filter air holes (27) are opened on one side of the filter plate (21); a filter tube (20) is fixedly connected to the top of the filter plate (21); a filter box (18) is fixedly connected to the top of the heating box (24); a filter air pump (19) is fixedly installed on the inner wall of the filter box (18); an input end of the filter air pump (19) is fixedly connected to a filter; one end of the filter is fixedly connected to the filter tube (20); and an output end of the air pump is fixedly connected to a return pipe; The temperature control unit comprises a ventilation hood (26), one end of the ventilation hood (26) is fixedly connected to an air inlet pipe (25), the other end of the ventilation hood (26) is fixedly connected to an air outlet pipe, and a plurality of heat dissipation plates (23) are fixedly connected between both sides of the inner wall of the ventilation hood (26) and the outer wall of the heating box (24), and the middle of the heat dissipation plate (23) is fixedly connected to a heating wire.

2. The LNG fuel supply system with a hidden integrated structural unit according to claim 1 is characterized in that A heat conducting plate (16) is fixedly connected to the middle of the bottom plate (14), and air guide plates (13) are fixedly connected to both sides of the top of the heat conducting plate (16). A gap is left between the bottom of the bottom plate (14) and the bottom of the inner wall of the packaging box (3), and drainage ports (15) are provided on both sides of the bottom plate (14).

3. LNG fuel supply method with hidden integrated structural unit, characterized in that The LNG fuel supply system with a hidden integrated structural unit as claimed in claim 1 is adopted. By arranging the gas storage tank (1) in the packaging box (3), a hidden design of the gas storage unit is realized. By sliding the gas supply processing mechanism on the support frame, the gas supply operation is realized, making the displacement adjustment and installation of each unit of the gas supply processing mechanism more convenient.

4. The LNG fuel supply method with a hidden integrated structural unit according to claim 3, characterized in that , the escaped natural gas is discharged through a ventilation unit arranged between the gas storage tanks (1).

5. The LNG fuel supply method with a hidden integrated structural unit according to claim 3, characterized in that When the gasification heating unit is working, the water vapor and the scattered natural gas inside the heating box (24) are filtered and removed, and the working temperature of the gasification heating unit is adjusted by setting a temperature adjustment unit.

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