A double-walled pipe isolation system for marine fuel

Abstract

The application relates to a ship fuel double-wall pipe isolation system, belonging to the field of isolation system technology, which comprises a transportation main pipe, one side of the transportation main pipe is connected with a detection pipe, the two ends of the detection pipe are respectively connected with the transportation main pipe in a communication mode, a control valve body is arranged at the position of the transportation main pipe between the two ends of the detection pipe, a detection assembly for detecting the inside of the detection pipe is arranged on the detection pipe, and a pipe sealing assembly is arranged on the transportation main pipe. The application has the effects of monitoring fuel in real time and discovering leakage in time during fuel transportation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of isolation system technology, in particular to a ship fuel double-wall pipe isolation system. BACKGROUND

[0002] In the current ship field, with the wide application of new green fuels such as methanol or liquid ammonia, more and more operating ships choose these low flash point fuels as the power source. In order to ensure the safe and stable operation of the low flash point fuel system, according to the current ship design and construction specification, the part of the fuel supply pipeline installed in the engine room needs to be in the form of double-wall pipe.

[0003] The design of double-wall pipe can improve the safety of fuel delivery system, but the current technology lacks effective detection devices when fuel is delivered through double-wall pipe, which can cause problems. If fuel leaks, it is difficult to discover and cut off the fuel delivery in time due to the lack of effective monitoring means.

[0004] In the prior art, during the delivery of fuel through the double-wall pipe, due to the lack of good detection devices, the fuel cannot be monitored during the delivery process. If leakage occurs, it will be difficult to discover and cut off the fuel delivery in time, which will cause major safety hazards and make it difficult to ensure the personal safety of the crew. SUMMARY

[0005] In order to monitor the fuel in real time and discover the leakage in time during the fuel transportation process, the present application provides a ship fuel double-wall pipe isolation system.

[0006] The ship fuel double-wall pipe isolation system provided by the present application adopts the following technical scheme:

[0007] A ship fuel double-wall pipe isolation system, comprising a transportation main pipe, a detection pipe connected to one side of the transportation main pipe, the two ends of the detection pipe being respectively communicated with the transportation main pipe, a control valve body being arranged at a position between the two ends of the detection pipe, a detection assembly being arranged on the detection pipe to detect the inside of the detection pipe, and a pipe sealing assembly being arranged on the transportation main pipe.

[0008] Optionally, the transportation main pipe comprises a transportation inner pipe, the outer side of the transportation inner pipe being sleeved with a transportation outer pipe, a transportation annular cavity being formed between the transportation inner pipe and the transportation outer pipe, the detection pipe comprising a detection inner pipe and a detection outer pipe, the detection inner pipe being communicated with the transportation inner pipe, the detection outer pipe being communicated with the transportation outer pipe, and a detection annular cavity being formed between the detection inner pipe and the detection outer pipe.

[0009] Optionally, the detection assembly comprises a pressure sensor, and the detection end of the pressure sensor is located in the detection inner pipe.

[0010] Optionally, the detection assembly comprises a fuel sensor, and a detection end of the fuel sensor is located in the detection ring cavity.

[0011] Optionally, the sealing assembly is located on one side of the transportation ring cavity close to the inlet end of the first control valve, the transportation ring cavity is sealed by the sealing assembly when the sealing assembly is in a sealing state, the two sides of the transportation ring cavity are communicated when the sealing assembly is in an open state, and the sealing assembly is signal connected with the data processing module.

[0012] Optionally, the sealing assembly comprises a first sealing half ring and a second sealing half ring located inside the transportation ring cavity, the first sealing half ring and the second sealing half ring form a complete annular sealing ring, and the transportation main pipe is provided with a driving assembly for driving the first sealing half ring and the second sealing half ring to rotate.

[0013] Optionally, the driving assembly comprises a driving gear, one side of the driving gear is provided with a driving piece for driving the driving gear to rotate, the position of the driving gear relative to the first sealing half ring is meshingly connected with a first driven gear, the first driven gear is coaxially fixedly connected with a first connecting rod, the first connecting rod is fixedly connected with the first sealing half ring, the position of the driving gear relative to the second sealing half ring is meshingly connected with a second driven gear, the second driven gear is coaxially fixedly connected with a second connecting rod, and the second connecting rod is fixedly connected with the second sealing half ring.

[0014] Optionally, one side of the transportation main pipe is provided with a temperature adjusting assembly, the temperature adjusting assembly is in opposite communication with the transportation ring cavity, the transportation main pipe is provided with a temperature detector, a detection end of the temperature detector is located in the transportation inner pipe, and the temperature detector is connected with the temperature adjusting assembly.

[0015] Optionally, the temperature adjusting assembly comprises a water storage tank, the inside of the water storage tank is provided with a condenser pipe and a heating pipe, the inside of the water storage tank is in opposite communication with the inside of the transportation ring cavity, the water storage tank is provided with a control module, the control module is connected with the temperature detector, and the control module is connected with the condenser pipe and the heating pipe respectively.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] 1. When the ship fuel is in the process of transportation, first close the first control valve, make the fuel pass through the detection inner tube from the other side, at the same time monitor the pressure of the fuel in the detection inner tube through the pressure sensor, and transmit the data to the data processing module for detection, at the same time monitor whether there is fuel in the detection ring cavity between the detection inner tube and the detection outer tube through the fuel sensor, and transmit the data to the data processing module for detection.

[0018] When it is detected that the pressure in the detection inner tube changes greatly and there is fuel leakage in the detection ring cavity between the detection inner tube and the detection outer tube, the second control valve and the third control valve are controlled to be closed by the driving module, and the main gear is driven to rotate by the control of the rotating motor, so as to drive the first sealing half ring and the second sealing half ring to close, so as to stop the delivery of the fuel and seal the detection ring cavity between the detection inner tube and the detection outer tube to avoid excessive leakage of the fuel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of a ship fuel double-wall pipe isolation system in the embodiment of the application.

[0020] Figure 2 is a side view of a ship fuel double-wall pipe isolation system in the embodiment of the application.

[0021] Figure 3 is Figure 2 is the enlarged view of part A in FIG. 1.

[0022] Figure 4 is the temperature adjustment assembly structure schematic diagram of a ship fuel double-wall pipe isolation system in the embodiment of the application.

[0023] BRIEF DESCRIPTION OF DRAWINGS: 1, support bottom plate; 2, transportation main pipe; 21, transportation inner tube; 22, transportation outer tube; 23, transportation ring cavity; 3, detection pipe; 31, detection inner tube; 32, detection outer tube; 33, detection ring cavity; 4, detection assembly; 41, pressure sensor; 42, fuel sensor; 43, data processing module; 44, driving module; 5, temperature adjustment assembly; 51, temperature detector; 52, detection module; 53, control module; 54, water storage tank; 55, condensing pipe; 551, cooling module; 56, heating pipe; 561, heating module; 57, delivery pipe; 58, water pump; 59, return pipe; 6, first control valve; 7, second control valve; 8, third control valve; 9, sealing assembly; 91, first sealing half ring; 92, second sealing half ring; 93, driving assembly; 931, connecting plate; 932, rotating motor; 933, main gear; 934, first driven gear; 935, second driven gear; 936, first connecting rod; 937, second connecting rod. DETAILED DESCRIPTION

[0024] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the application will be further described below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0026] The above and other aspects of the present application will become more apparent by describing in detail the embodiments thereof with reference to the attached drawings in which: Figures 1-4 The present application will be described in further detail.

[0027] The embodiments of the present application disclose a ship fuel double-wall pipe isolation system. Referring to Figure 1 , Figure 2 The ship fuel double-wall pipe isolation system comprises a supporting bottom plate 1 at the bottom end, a transport main pipe 2 arranged on the supporting bottom plate 1, wherein the transport main pipe 2 is in a straight pipe structure. A detection pipe 3 is arranged on one side of the transport main pipe 2, wherein the detection pipe 3 is in a “U” structure, and the two ends of the detection pipe 3 are fixedly connected with the side wall of the transport main pipe 2 and are in opposite communication. A detection assembly 4 is arranged on the detection pipe 3, wherein the detection assembly 4 can detect the situation inside the detection pipe 3. A plurality of control valves are arranged on the detection pipe 3 and the transport main pipe 2, wherein the control valves are in signal connection with the detection assembly 4. A temperature adjusting assembly 5 is further arranged on the supporting bottom plate 1, wherein the temperature adjusting assembly 5 is in opposite communication with the inside of the transport main pipe 2, and the temperature inside the transport main pipe 2 is adjusted through the temperature adjusting assembly 5.

[0028] The transport main pipe 2 comprises a transport inner pipe 21 inside, a transport outer pipe 22 sleeved outside the transport inner pipe 21, wherein the transport inner pipe 21 and the transport outer pipe 22 are coaxially arranged, and a space is left between the outer side wall of the transport inner pipe 21 and the inner side wall of the transport outer pipe 22 to form a transport annular cavity 23.

[0029] The detection pipe 3 comprises a detection inner pipe 31 inside, a detection outer pipe 32 sleeved outside the detection inner pipe 31, wherein the detection inner pipe 31 and the detection outer pipe 32 are coaxially arranged, and a space is left between the outer side wall of the detection inner pipe 31 and the inner side wall of the detection inner pipe 31 to form a detection annular cavity 33.

[0030] The detection pipe 3 is connected relative to the inlet end of the transport main pipe 2, the other end of the detection pipe 3 is connected relative to the tail end of the transport main pipe 2, the detection inner pipe 31 is fixedly connected with the transport inner pipe 21 and is in relative communication, the detection outer pipe 32 is fixedly connected with the transport outer pipe 22 and is in relative communication, and the detection ring cavity 33 is in relative communication with the transport ring cavity 23. Therefore, the medium in the transport inner pipe 21 can enter the inside of the detection inner pipe 31, and the medium in the transport ring cavity 23 can enter the inside of the detection ring cavity 33.

[0031] The first control valve 6 is arranged between the two ends of the detection pipe 3 and is used for controlling the on-off of the transport inner pipe 21. When the first control valve 6 is closed, the medium in the inlet end of the transport main pipe 2 enters the inside of the detection inner pipe 31 and is detected by the detection assembly 4 arranged on the detection inner pipe 31.

[0032] The liquid inlet end of the transport main pipe 2 is provided with the second control valve 7 at the end of the detection pipe 3 away from the first control valve 6, and the second control valve 7 is used for controlling the on-off of the transport main pipe 2. The third control valve 8 is arranged at the end of the detection pipe 3 close to the tail end of the transport main pipe 2, and the third control valve 8 is used for controlling the on-off of the detection pipe 3.

[0033] The detection assembly 4 includes the pressure sensor 41 arranged on the outer side wall of the detection pipe 3, the detection end of the pressure sensor 41 extends into the inside of the detection inner pipe 31, and the pressure in the inside of the detection inner pipe 31 is detected by the pressure sensor 41. The fuel sensor 42 is fixedly connected to the outer side wall of the detection pipe 3, the detection end of the fuel sensor 42 is arranged in the inside of the detection ring cavity 33, and the medium in the inside of the detection ring cavity 33 is detected by the fuel sensor 42. When the transport inner pipe 21 leaks, the leaked medium enters the inside of the transport ring cavity 23 and then enters the detection ring cavity 33, and the medium in the inside of the detection ring cavity 33 is detected by the fuel sensor 42, so as to determine whether the transport inner pipe 21 leaks.

[0034] The support plate is fixedly connected to the support base plate 1 and includes the vertical plates arranged on both sides of the detection pipe 3, and the horizontal plate is fixedly connected to the top ends of the two vertical plates, so that the detection pipe 3 is surrounded in the support plate. The data processing module 43 is fixedly connected to the top wall of the support plate, the data processing module 43 is signal-connected with the pressure sensor 41, and the data processing module 43 is signal-connected with the fuel sensor 42. The driving module 44 is fixedly connected to the support plate, one side of the driving module 44 is signal-connected with the data processing module 43, the other side of the driving module 44 is relatively connected with the second control valve 7 and the third control valve 8, respectively, and the driving module 44 can open or close the second control valve 7 and the third control valve 8 according to the data information of the data processing module 43.

[0035] Referring to Figure 2 , Figure 3 The liquid inlet end of the transport main pipe 2 is provided with a sealing assembly 9, which includes a first sealing half-ring 91 and a second sealing half-ring 92 located inside the transport ring cavity 23. Both the first sealing half-ring 91 and the second sealing half-ring 92 are half-ring structures, and the first sealing half-ring 91 and the second sealing half-ring 92 abut each other to form a complete ring structure. The abutting surface of the first sealing half-ring 91 and the second sealing half-ring 92 is vertically arranged. The first sealing half-ring 91 includes a half-ring hard structure inside and a soft structure wrapped outside the hard structure. The second sealing half-ring 92 also includes a half-ring hard structure inside and a soft structure wrapped outside the hard structure. In some embodiments, the soft structure can be rubber sealing material.

[0036] The inner side wall of the first sealing half-ring 91 abuts the outer side wall of the transport inner pipe 21, and the outer side wall of the first sealing half-ring 91 abuts the inner side wall of the transport outer pipe 22. The inner side wall of the second sealing half-ring 92 abuts the outer side wall of the transport inner pipe 21, and the outer side wall of the second sealing half-ring 92 abuts the inner side wall of the transport outer pipe 22.

[0037] A driving assembly 93 is arranged above the first sealing half-ring 91 and the second sealing half-ring 92. The driving assembly 93 can drive the first sealing half-ring 91 and the second sealing half-ring 92 to rotate. The first sealing half-ring 91 and the second sealing half-ring 92 rotate in opposite directions, so that the first sealing half-ring 91 and the second sealing half-ring 92 are deformed under the action of the transport inner pipe 21 and the transport outer pipe 22, thereby forming a gap inside the transport ring cavity 23, so as to connect the liquid inlet end.

[0038] The driving assembly 93 includes a connecting plate 931 fixedly connected to the transport main pipe 2. The top end of the connecting plate 931 is fixedly connected to a rotating motor 932, and the driving end of the rotating motor 932 is connected to the driving module 44. A driving gear 933 is horizontally arranged at the bottom end of the connecting plate 931. The driving gear 933 is rotatably connected to the connecting plate 931, and the motor shaft of the rotating motor 932 is coaxially and fixedly connected to the driving gear 933. First and second driven gears 934 and 935 are arranged on both sides of the driving gear 933. The driving gear 933 is in meshing connection with the first driven gear 934, and the driving gear 933 is in meshing connection with the second driven gear 935.

[0039] A first connecting rod 936 is coaxially and fixedly connected to the bottom end of the first driven gear 934. The bottom end of the first connecting rod 936 is fixedly connected to the first sealing half-ring 91. A second connecting rod 937 is coaxially and fixedly connected to the bottom end of the second driven gear 935. The bottom end of the second connecting rod 937 is fixedly connected to the second sealing half-ring 92.

[0040] When the driving module 44 controls the rotation of the motor shaft of the rotating motor 932, the motor shaft drives the main gear 933 to rotate, and the main gear 933 drives the first driven secondary gear and the second driven secondary gear to rotate, respectively, and then the first driven gear 934 drives the first connecting rod 936 to rotate, and the second driven gear 935 drives the second connecting rod 937 to rotate, and the first connecting rod 936 drives the first sealing half ring 91 to rotate, and the second connecting rod 937 drives the second sealing half ring 92 to rotate, thereby controlling the opening and closing of the first sealing half ring 91 and the second sealing half ring 92 to the inside of the transport ring cavity 23.

[0041] When the ship fuel is in the process of transportation, first, close the first control valve 6, make the fuel pass through the detection inner pipe 31 from the other side, at the same time, monitor the pressure of the fuel in the detection inner pipe 31 through the action of the pressure sensor 41, and transmit the data to the data processing module 43 for detection, and at the same time, monitor whether there is fuel in the detection ring cavity 33 between the detection inner pipe 31 and the detection outer pipe 32 through the action of the fuel sensor 42, and transmit the data to the data processing module 43 for detection.

[0042] When it is detected that the pressure in the detection inner pipe 31 changes greatly and there is fuel leakage in the detection ring cavity 33 between the detection inner pipe 31 and the detection outer pipe 32, the second control valve 7 and the third control valve 8 are controlled to be closed by the driving module 44, and the rotating motor 932 is controlled to work to drive the main gear 933 to rotate, thereby driving the first sealing half ring 91 and the second sealing half ring 92 to close, so as to stop the delivery of fuel and seal the detection ring cavity 33 between the detection inner pipe 31 and the detection outer pipe 32 to avoid excessive leakage of fuel.

[0043] Referring to Figure 2 , Figure 4 The temperature adjusting assembly 5 comprises a temperature detector 51, which is fixedly connected with the side wall of the transport main pipe 2, and the detection end of the temperature detector 51 is located in the inside of the transport inner pipe 21, and the temperature of the medium in the transport inner pipe 21 is detected by the temperature detector 51. A detection module 52 is further arranged at one end of the temperature detector 51, and the signal between the temperature detector 51 and the detection module 52 is connected. A control module 53 is arranged at one side of the detection module 52, and the signal between the detection module 52 and the control module 53 is connected.

[0044] A water storage tank 54 is fixedly connected to the support bottom plate 1, and is located at the bottom end of the control module 53 and the detection module 52. One side of the inside of the water storage tank 54 is provided with a condenser pipe 55, which can cool the medium inside the water storage tank 54. A cooling module 551 is fixedly connected to the top end of the water storage tank 54, and is signal-connected with the control module 53. The inside of the water storage tank 54 is also provided with a heating pipe 56 on the side away from the condenser pipe 55. A heating module 561 is fixedly connected to the top end of the water storage tank 54, and is signal-connected with the control module 53.

[0045] One end of the water storage tank 54 is fixedly connected with a conveying pipe 57, one end of which is in communication with the water storage tank 54, and the other end of which is in communication with the inside of the transportation ring cavity 23. The conveying pipe 57 is also provided with a water pump 58, which pumps the liquid inside the water storage tank 54 into the inside of the conveying pipe 57. The side of the water storage tank 54 away from the conveying pipe 57 is also provided with a return pipe 59, one end of which is in communication with the water storage tank 54, and the other end of which is in communication with the inside of the transportation ring cavity 23, so that the liquid inside the transportation ring cavity 23 can flow back into the inside of the water storage tank 54 for circulation.

[0046] When the temperature detector 51 detects that the medium temperature of the transportation inner pipe 21 is low, the temperature detector 51 transmits a signal to the control module 53, and the control module 53 controls the heating module 561 to drive the heating pipe 56 to heat the liquid inside the water storage tank 54.

[0047] When the temperature detector 51 detects that the medium temperature of the transportation inner pipe 21 is high, the temperature detector 51 transmits a signal to the control module 53, and the control module 53 controls the cooling module 551 to drive the condenser pipe 55 to cool the liquid inside the water storage tank 54.

[0048] In the present application, the term "a plurality of" refers to at least two or at least two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixedly connected, or can be detachably connected, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like are intended to indicate that the described implementation, implementation, or feature is included in at least one implementation or example of the present application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A marine fuel double-wall pipe isolation system, characterized by: The utility model provides a kind of transport main pipe (2), one side of the transport main pipe (2) is connected with detection pipe (3), two ends of the detection pipe (3) are communicated with the transport main pipe (2) respectively, control valve body is provided at the position between the detection pipe (3) two ends of the transport main pipe (2), detection assembly (4) for detecting inside the detection pipe (3) is provided on the detection pipe (3), pipeline sealing assembly (9) is provided on the transport main pipe (2); The transport main pipe (2) includes a transport inner tube (21), an outer side of the transport inner tube (21) is sleeved with a transport outer tube (22), a transport annular cavity (23) is formed between the transport inner tube (21) and the transport outer tube (22), the detection pipe (3) includes a detection inner tube (31) and a detection outer tube (32), the detection inner tube (31) is communicated with the transport inner tube (21), the detection outer tube (32) is communicated with the transport outer tube (22), a detection annular cavity (33) is formed between the detection inner tube (31) and the detection outer tube (32); The detection assembly (4) includes a pressure sensor (41), a detection end of the pressure sensor (41) is located in the detection inner tube (31); The detection assembly (4) includes a fuel sensor (42), a detection end of the fuel sensor (42) is located in the detection annular cavity (33).

2. The marine fuel double-wall pipe isolation system of claim 1, wherein: The detection assembly (4) is electrically connected with a data processing module (43), an inlet end of the transport main pipe (2) is provided with a first control valve (6), a tail end of the detection pipe (3) is provided with a second control valve (7), the first control valve (6) is connected with the data processing module (43), and the second control valve (7) is connected with the data processing module (43).

3. The marine fuel double-wall pipe isolation system of claim 2, wherein: The sealing assembly (9) is located in the transport annular cavity (23) and is located on one side close to the inlet end of the first control valve (6), when the sealing assembly (9) is in a sealed state, the sealing assembly (9) seals the transport annular cavity (23), when the sealing assembly (9) is in an open state, the transport annular cavity (23) is communicated on both sides of the sealing assembly (9), and the sealing assembly (9) is signal connected with the data processing module (43).

4. The marine fuel double-wall pipe isolation system of claim 3, wherein: The sealing assembly (9) includes a first sealing half ring (91) and a second sealing half ring (92) located inside the transport annular cavity (23), the first sealing half ring (91) and the second sealing half ring (92) form a complete annular sealing ring, and the transport main pipe (2) is provided with a driving assembly (93) for driving the first sealing half ring (91) and the second sealing half ring (92) to rotate.

5. The marine fuel double-wall pipe isolation system of claim 4, wherein: The driving assembly (93) comprises a driving gear (933), one side of the driving gear (933) is provided with a driving part for driving the driving gear (933) to rotate, the position of the driving gear (933) relative to the first sealing half ring (91) is engaged with a first driven gear (934), the first driven gear (934) is coaxially fixedly connected with a first connecting rod (936), the first connecting rod (936) is fixedly connected with the first sealing half ring (91), the position of the driving gear (933) relative to the second sealing half ring (92) is engaged with a second driven gear (935), the second driven gear (935) is coaxially fixedly connected with a second connecting rod (937), and the second connecting rod (937) is fixedly connected with the second sealing half ring (92).

6. The marine fuel double-wall pipe isolation system of claim 1, wherein: One side of the transport main pipe (2) is provided with a temperature adjusting assembly (5), the temperature adjusting assembly (5) is in communication with the transport ring cavity (23), the transport main pipe (2) is provided with a temperature detector (51), the detection end of the temperature detector (51) is located in the transport inner pipe (21), and the temperature detector (51) is connected with the temperature adjusting assembly (5).

7. The marine fuel double-wall pipe isolation system of claim 6, wherein: The temperature adjusting assembly (5) comprises a water storage tank (54), the inside of the water storage tank (54) is provided with a condenser pipe (55) and a heating pipe (56), the inside of the water storage tank (54) is in communication with the inside of the transport ring cavity (23), the water storage tank (54) is provided with a control module (53), the control module (53) is connected with the temperature detector (51), and the control module (53) is connected with the condenser pipe (55) and the heating pipe (56) respectively.

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