Marine methanol fuel discharge device system
By adopting a double-walled tube structure of a methanol collection tank and a mobile receiving tank on the ship, and using methanol gravity to collect and reuse it, the problems of large space occupation and resource waste in the prior art are solved, and low-cost and efficient methanol fuel drainage are achieved.
Patent Information
- Application Number
- CN202422709022.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing ship methanol fuel discharge system occupies a large space and is costly, and the collected methanol solution cannot be reused, resulting in waste of resources.
A simple structure of methanol collection tank and a mobile methanol receiving tank are used to separate the inner and outer tubes of the double-walled tubes, and the collection is achieved by using the gravity of methanol. The power device is omitted, and the methanol solution can be reused.
It reduces equipment costs and space occupation, realizes the reuse of methanol solution, and avoids energy waste.
Smart Images
Figure CN223291044U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ship shipping, and in particular relates to a ship-used methanol fuel discharge device system. Background Art
[0002] At present, with the development of clean energy, methanol is gradually being used as a ship fuel in the field of shipping due to its many advantages such as cleanliness, environmental protection and high availability. When the ship's methanol fuel supply system is shut down or undergoing maintenance, for safety reasons, all pipelines, engines and other leaked methanol fuels need to be stored in a methanol discharge cabinet and returned to shore for processing by special equipment. That is, for ships, on the one hand, it is necessary to reserve a sufficiently large discharge collection tank on board; on the other hand, it also increases the burden on the ship during the shipping process.
[0003] According to ship design regulations, methanol supply piping within the engine room must be double-walled. In the event of a leak or fuel switch, the methanol within the double-walled pipe must be discharged. There are two common approaches to handling these methanol leaks. One approach involves installing a methanol dump tank at a lower location outside the engine room, with a dump pipe installed to discharge the methanol to the tank. A methanol dump pump is also installed to pump the methanol from the dump tank to the service tanks. The layout requirements for the methanol dump tank are the same as those for the methanol storage tank; it cannot be located directly within the engine room. Furthermore, an isolation tank must be located around it to isolate it from other tanks, thus occupying a significant amount of space. Another approach involves installing a water-filled dump tank within the engine room to discharge the methanol to the dump tank. If the methanol solution concentration within the tank is less than 10%, the regulations allow the dump tank and pump to be located within the engine room. However, the regulations do not allow the methanol solution in the dump tank to be discharged directly into the sea, requiring a dedicated transfer pump for shore discharge.
[0004] At present, the disadvantages of the method for discharging methanol fuel for ships include: (1) the required discharge tank will take up valuable space; and the discharge tank needs to be equipped with accessories such as liquid level measurement and P / V valves, which is relatively expensive; (2) the method used has many pipelines and is relatively expensive; (3) the methanol solution collected by discharge cannot be used as fuel, resulting in a waste of resources; and the methanol solution is not allowed to be discharged into the sea and still needs to be stored on board, resulting in a waste of space.
[0005] In summary, it is necessary to provide a methanol fuel discharge device system that has a simple structure, reduces the space occupied by the discharge tank, etc., and collects methanol for reuse. Utility Model Content
[0006] To address the shortcomings of the existing technology, the present invention aims to provide a marine methanol fuel discharge system. This system features a simple structure, low manufacturing and operating costs, and eliminates the need for shipboard tanks, requiring minimal space for installation. Furthermore, the methanol solution collected by this system can be reused, avoiding energy waste.
[0007] To achieve this purpose, the present invention adopts the following technical solutions:
[0008] The utility model provides a marine methanol fuel discharge device system. According to the vertical downward direction of the double-walled pipe, the marine methanol fuel discharge device system comprises a double-walled pipe, a methanol collecting tank and a mobile methanol receiving tank which are connected in sequence.
[0009] The utility model realizes efficient collection of marine methanol fuel through simple and continuously arranged methanol collecting tanks and mobile methanol receiving tanks; the device system has few pipelines, a simple structure, and occupies a small space, and the collected methanol solution can be reused without causing energy waste.
[0010] In addition, the utility model can utilize the gravity of methanol fuel itself to realize fuel discharge, reducing the use of power devices and further saving equipment costs and use costs.
[0011] As a preferred technical solution of the present invention, the double-walled tube includes an inner tube and an outer tube which are sleeved.
[0012] As a preferred technical solution of the present invention, the outer tube is connected to the methanol collection tank through a first discharge pipeline.
[0013] Preferably, a first stop valve and a second stop valve are continuously provided on the first discharge pipeline.
[0014] Preferably, the first discharge pipeline is arranged perpendicular to the methanol collection tank.
[0015] Preferably, the inner diameter of the first discharge pipe is 25 to 32 mm, for example, it can be 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm or 32 mm, but is not limited to the listed values. Other values not listed within the numerical range are also applicable.
[0016] It is worth noting that the first stop valve and the second stop valve continuously arranged on the first discharge pipeline can further prevent leakage of methanol in the outer tube when the methanol fuel in the inner tube is released.
[0017] As a preferred technical solution of the present invention, the inner tube is connected to the methanol collection tank through a second discharge pipeline.
[0018] Preferably, a third shut-off valve is provided on the second discharge pipeline.
[0019] Preferably, the second discharge pipeline is arranged perpendicular to the methanol collection tank.
[0020] Preferably, the inner diameter of the second discharge pipe is 25 to 32 mm, for example, it can be 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm or 32 mm, but is not limited to the listed values. Other values not listed within the numerical range are also applicable.
[0021] It is worth noting that when the device system of the present invention is used to discharge methanol fuel, the methanol fuel in the inner and outer tubes needs to be discharged separately. The purpose is to prevent the inner and outer tubes from being connected, thereby affecting the discharge effect of the methanol fuel.
[0022] As a preferred technical solution of the present invention, the methanol collecting tank is connected to the mobile methanol receiving tank through a third discharge pipeline.
[0023] Preferably, a fourth stop valve and a fifth stop valve are consecutively provided on the third discharge pipeline.
[0024] Preferably, a first dry quick connector is provided between the fourth stop valve and the fifth stop valve.
[0025] In the utility model, the first dry quick connector can be used to automatically seal when the fourth stop valve or the fifth stop valve provided on the third discharge pipeline is disconnected, thereby reducing the risk of methanol leakage.
[0026] As a preferred technical solution of the present invention, the third discharge pipeline is arranged perpendicular to the mobile methanol receiving tank.
[0027] Preferably, the inner diameter of the third discharge pipe is 25 to 32 mm, for example, it can be 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm or 32 mm, but is not limited to the listed values. Other values not listed within the numerical range are also applicable.
[0028] As a preferred technical solution of the present invention, a liquid level alarm device is provided on the side wall of the methanol collection tank close to one end of the double-walled tube.
[0029] Preferably, the height of the liquid level alarm device is 80-90% of the height of the methanol collection tank, for example, it can be 80%, 82%, 84%, 86%, 88% or 90%, but is not limited to the listed values, and other values not listed within the numerical range are also applicable.
[0030] As a preferred technical solution of the present invention, an exhaust port is provided on the side wall of the methanol collection tank.
[0031] Preferably, the exhaust port is arranged between the exhaust port and the top of the methanol collecting tank.
[0032] It is worth noting that the exhaust port should be located higher than the liquid level alarm device to prevent the exhaust from being affected by the rising liquid level.
[0033] As a preferred technical solution of the present invention, a vent is provided at the top of the mobile methanol receiving tank.
[0034] Preferably, the exhaust port is connected to the vent through a constant pressure pipe.
[0035] Preferably, a sixth stop valve and a seventh stop valve are continuously provided on the constant pressure pipeline.
[0036] As a preferred technical solution of the present invention, a second dry quick connector is provided between the sixth stop valve and the seventh stop valve;
[0037] Preferably, the inner diameter of the constant pressure pipe is 20 to 30 mm, for example, it can be 20 mm, 22 mm, 24 mm, 26 mm, 28 mm or 30 mm, but is not limited to the listed values. Other values not listed within the numerical range are also applicable.
[0038] In the utility model, the balance of internal pressure in the methanol collection tank and the mobile methanol receiving tank is achieved through the exhaust port, the constant pressure pipe and the air vent, and the methanol solution in the methanol collection tank is transported to the mobile methanol receiving tank without setting up a delivery pump and a sealing device.
[0039] In addition, the mobile methanol receiving tank of the present invention is a movable device, which can be moved to other locations when the methanol receiving tank is saturated, thereby reducing the use of space and meeting the methanol fuel needs of other equipment.
[0040] The working principle of the marine methanol fuel discharge device system provided by the utility model is as follows: when the methanol fuel needs to be discharged, the stop valve connected to the double-walled pipe is opened, and the methanol fuel to be discharged is discharged into the methanol collecting tank by gravity (wherein, the methanol solution in the inner tube and the outer tube of the double-walled pipe cannot be discharged at the same time); when the liquid level alarm device in the methanol collecting tank sounds an alarm, the discharge is stopped, the stop valve connected to the double-walled pipe is closed, and then the methanol receiving tank and the mobile methanol receiving tank are connected, and the methanol solution in the methanol receiving tank is discharged into the mobile methanol receiving tank by gravity; the methanol in the mobile methanol receiving tank can be added to the daily service tank of the ship.
[0041] The system refers to an equipment system, a device system or a production device.
[0042] Compared with the prior art, the beneficial effects of the present invention are:
[0043] (1) The marine methanol fuel discharge device system provided by the present invention has a simple structure, low preparation cost and operation cost, and omits the hull tank, which reduces the space requirement for the device installation;
[0044] (2) The methanol solution collected by the marine methanol fuel discharge device system provided by the present invention can be refilled into the daily service tank of the ship, thereby avoiding energy waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] Figure 1 This is a structural diagram of the marine methanol fuel discharge device system provided by the utility model;
[0046] Among them: 1 is a double-walled pipe, 2 is a methanol collection tank, 3 is a mobile methanol receiving tank, 1-1 is an outer pipe, 1-2 is an inner pipe, 4-1 is the first discharge pipeline, 4-2 is the second discharge pipeline, 4-3 is the third discharge pipeline, 4-4 is a constant pressure pipeline, 5-1 is the first stop valve, 5-2 is the second stop valve, 5-3 is the third stop valve, 5-4 is the fourth stop valve, 5-5 is the fifth stop valve, 5-6 is the sixth stop valve, 5-7 is the seventh stop valve, 6-1 is the first dry quick connector, 6-2 is the second dry quick connector, and 7 is a liquid level alarm device. DETAILED DESCRIPTION
[0047] It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0048] It should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0049] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0050] The utility model provides a marine methanol fuel discharge device system, such as Figure 1 As shown, according to the vertical downward direction of the double-walled pipe 1, the marine methanol fuel discharge device system includes a double-walled pipe 1, a methanol collecting tank 2 and a mobile methanol receiving tank 3 connected in sequence.
[0051] The double-walled pipe 1 includes a sleeved inner pipe 1-2 and an outer pipe 1-1;
[0052] The outer tube 1-1 is connected to the methanol collection tank 2 via a first discharge line 4-1; a first stop valve 5-1 and a second stop valve 5-2 are continuously provided on the first discharge line 4-1; the first discharge line 4-1 is arranged perpendicular to the methanol collection tank 2; the inner diameter of the first discharge line 4-1 is 25 to 32 mm;
[0053] The inner tube is connected to the methanol collection tank 2 through a second discharge pipe 4-2; a third shut-off valve 5-3 is provided on the second discharge pipe 4-2; the second discharge pipe 4-2 is provided perpendicular to the methanol collection tank 2; the inner diameter of the second discharge pipe 4-2 is 25 to 32 mm;
[0054] The methanol collection tank is connected to the mobile methanol receiving tank 3 via a third discharge pipeline 4-3; a fourth stop valve 5-4 and a fifth stop valve 5-5 are continuously provided on the third discharge pipeline 4-3; a first dry quick connector 6-1 is provided between the fourth stop valve 5-4 and the fifth stop valve 5-5; the third discharge pipeline 4-3 is provided perpendicular to the mobile methanol receiving tank 3; the inner diameter of the third discharge pipeline 4-3 is 25 to 32 mm;
[0055] A liquid level alarm device 7 is provided on the side wall of the methanol collection tank 2 near one end of the double-walled pipe 1; the height of the liquid level alarm device 7 is 80-90% of the height of the methanol collection tank 2;
[0056] An exhaust port is provided on the side wall of the methanol collecting tank 2; the exhaust port is provided between the liquid level alarm device 7 and the top of the methanol collecting tank 2;
[0057] A vent is provided at the top of the mobile methanol receiving tank 3; the exhaust port is connected to the vent through a constant pressure pipe 4-4; a sixth stop valve 5-6 and a seventh stop valve 5-7 are continuously provided on the constant pressure pipe 4-4; a second dry quick connector 6-2 is provided between the sixth stop valve 5-6 and the seventh stop valve 5-7; the inner diameter of the constant pressure pipe 4-4 is 20 to 30 mm.
[0058] Example 1
[0059] This embodiment provides a Figure 1 The marine methanol fuel discharge device system shown in the figure includes a double-walled pipe 1, a methanol collecting tank 2 and a mobile methanol receiving tank 3 connected in sequence according to the vertical downward direction of the double-walled pipe 1.
[0060] The double-walled pipe 1 includes a sleeved inner pipe 1-2 and an outer pipe 1-1;
[0061] The outer tube 1-1 is connected to the methanol collection tank 2 via a first discharge line 4-1; a first stop valve 5-1 and a second stop valve 5-2 are continuously provided on the first discharge line 4-1; the first discharge line 4-1 is provided perpendicular to the methanol collection tank 2; the inner diameter of the first discharge line 4-1 is 30 mm;
[0062] The inner tube is connected to the methanol collection tank 2 via a second discharge pipe 4-2; a third shut-off valve 5-3 is provided on the second discharge pipe 4-2; the second discharge pipe 4-2 is provided perpendicular to the methanol collection tank 2; the inner diameter of the second discharge pipe 4-2 is 30 mm;
[0063] The methanol collection tank is connected to the mobile methanol receiving tank 3 via a third discharge pipeline 4-3; a fourth shut-off valve 5-4 and a fifth shut-off valve 5-5 are serially provided on the third discharge pipeline 4-3; a first dry quick connector 6-1 is provided between the fourth shut-off valve 5-4 and the fifth shut-off valve 5-5; the third discharge pipeline 4-3 is arranged perpendicular to the mobile methanol receiving tank 3; the inner diameter of the third discharge pipeline 4-3 is 30 mm;
[0064] A liquid level alarm device 7 is provided on the side wall of the methanol collection tank 2 near one end of the double-walled pipe 1; the height of the liquid level alarm device 7 is 80-90% of the height of the methanol collection tank 2;
[0065] An exhaust port is provided on the side wall of the methanol collecting tank 2; the exhaust port is provided between the liquid level alarm device 7 and the top of the methanol collecting tank 2;
[0066] A vent is provided at the top of the mobile methanol receiving tank 3; the exhaust port is connected to the vent through a constant pressure pipe 4-4; a sixth stop valve 5-6 and a seventh stop valve 5-7 are continuously provided on the constant pressure pipe 4-4; a second dry quick connector 6-2 is provided between the sixth stop valve 5-6 and the seventh stop valve 5-7; the inner diameter of the constant pressure pipe 4-4 is 25 mm.
[0067] The marine methanol fuel discharge device system provided in this embodiment has a simple structure, low preparation and operation costs, and omits the hull tank, which reduces the space requirement for the device installation.
[0068] In addition, the marine methanol fuel discharge device system provided in this embodiment can achieve effective collection and reuse of methanol fuel in the double-walled pipe, thereby avoiding energy waste.
[0069] Example 2
[0070] This embodiment provides a marine methanol fuel discharge device system. The marine methanol fuel discharge device system differs from that of embodiment 1 only in that:
[0071] In this embodiment, the inner diameters of the first discharge pipeline 4 - 1 , the second discharge pipeline 4 - 2 , and the third discharge pipeline 4 - 3 are adjusted to 15 mm.
[0072] Compared with Example 1, the inner diameter of the discharge pipeline in the device system in this embodiment is smaller, which will lead to a smaller discharge flow rate, thereby extending the discharge time and increasing the discharge cost.
[0073] Example 3
[0074] This embodiment provides a marine methanol fuel discharge device system. The marine methanol fuel discharge device system differs from that of embodiment 1 only in that:
[0075] In this embodiment, the first dry quick connector 6 - 1 is omitted.
[0076] Compared with Example 1, the present embodiment omits the first dry quick connector 6 - 1 , which may result in a risk of methanol leakage when connecting and / or disconnecting the mobile methanol receiving tank 3 .
[0077] Example 4
[0078] This embodiment provides a marine methanol fuel discharge device system. The marine methanol fuel discharge device system differs from that of embodiment 1 only in that:
[0079] In this embodiment, the constant pressure pipeline 4 - 4 , the air vent and the exhaust port are omitted.
[0080] Compared with Example 1, this embodiment omits the constant pressure equipment set between the methanol collection tank and the mobile methanol receiving tank, which will cause the third discharge pipeline 4-3 to be pressurized and the methanol in the methanol collection tank cannot be discharged into the mobile methanol receiving tank.
[0081] Comparative Example 1
[0082] This embodiment provides a marine methanol fuel discharge device system. The marine methanol fuel discharge device system differs from that of embodiment 1 only in that:
[0083] In this comparative example, the mobile methanol receiving tank is adjusted to a fixed methanol receiving tank.
[0084] Compared with Example 1, the fixed methanol receiving tank provided in this embodiment cannot be moved, resulting in the need to add a methanol processing device, such as a pump, to process the methanol in the receiving tank.
[0085] In summary, the ship-use methanol fuel discharge device system provided by the present invention has a simple structure, low preparation cost and operation cost, omits the hull tank, and has low space requirements for the device installation; and the collected methanol solution can be refilled into the ship's daily tank, avoiding energy waste.
[0086] The applicant declares that the above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technicians in the relevant technical field within the technical scope disclosed in the present invention fall within the protection scope and disclosure scope of the present invention.
Claims
1. A marine methanol fuel discharge device system, characterized in that: According to the vertical downward direction of the double-walled pipe, the marine methanol fuel discharge device system includes a double-walled pipe, a methanol collecting tank and a mobile methanol receiving tank that are connected in sequence.
2. The marine methanol fuel discharge device system according to claim 1, characterized in that: The double-walled pipe comprises an inner pipe and an outer pipe which are sleeved together.
3. The marine methanol fuel discharge device system according to claim 2, characterized in that: The outer tube is connected to the methanol collection tank via a first discharge pipeline; A first stop valve and a second stop valve are continuously provided on the first discharge pipeline; The first discharge pipeline is arranged perpendicular to the methanol collection tank; The inner diameter of the first discharge pipeline is 25-32 mm.
4. The marine methanol fuel discharge device system according to claim 2, characterized in that: The inner tube is connected to the methanol collection tank via a second discharge pipeline; A third stop valve is provided on the second discharge pipeline; The second discharge pipeline is arranged perpendicular to the methanol collection tank; The inner diameter of the second discharge pipeline is 25-32 mm.
5. The marine methanol fuel discharge device system according to claim 1, characterized in that: The methanol collecting tank is connected to the mobile methanol receiving tank via a third discharge pipeline; A fourth stop valve and a fifth stop valve are continuously provided on the third discharge pipeline; A first dry quick connector is provided between the fourth stop valve and the fifth stop valve.
6. The marine methanol fuel discharge device system according to claim 5, characterized in that: The third discharge pipeline is arranged perpendicular to the mobile methanol receiving tank; The inner diameter of the third discharge pipeline is 25-32 mm.
7. The marine methanol fuel discharge device system according to claim 1, characterized in that: A liquid level alarm device is provided on the side wall of the methanol collection tank close to one end of the double-walled tube; The height of the liquid level alarm device is 80-90% of the height of the methanol collection tank.
8. The marine methanol fuel discharge device system according to claim 7, characterized in that: An exhaust port is provided on the side wall of the methanol collection tank; The exhaust port is arranged between the liquid level alarm device and the top of the methanol collection tank.
9. The marine methanol fuel discharge device system according to claim 8, characterized in that: The top of the mobile methanol receiving tank is provided with a vent; The exhaust port is connected to the vent through a constant pressure pipe; A sixth stop valve and a seventh stop valve are continuously arranged on the constant pressure pipeline.
10. The marine methanol fuel discharge device system according to claim 9, characterized in that: A second dry quick connector is provided between the sixth stop valve and the seventh stop valve; The inner diameter of the constant pressure pipe is 20-30 mm.