Intelligent monitoring system for leakage of offshore floating hose

Abstract

The invention relates to an intelligent monitoring system for leakage of an offshore floating hose. The intelligent monitoring system comprises leakage detectors arranged in oil storage space layers, a control system connected with all the leakage detectors, a central control room connected with the control system, an upper computer arranged in the central control room, a leakage detection analysis module installed in the upper computer and a terminal connected with the upper computer. The leak detector is arranged in the oil storage space layer through the mounting bracket, and the leak detection analysis module processes a leak signal transmitted by the leak detector; the upper computer receives leakage signals, the leakage signals are processed by the leakage detection analysis module and then transmitted to the terminal, remote transmission, receiving, control, display and on-line alarm of the leakage signals are achieved, and in addition, a buoy and a visible window are further arranged. The system is high in automation degree and intelligent degree, an intelligent and traditional dual monitoring mode is adopted, leakage can be found in time at the initial stage, prevention can be achieved in advance, the operation cost of an enterprise is effectively reduced, and safety production threats to surrounding sea areas are reduced.

Description

Technical Field

[0001] This patent application belongs to the field of leakage monitoring technology, and more specifically, relates to an intelligent monitoring system for leakage of an offshore floating hose. Background Art

[0002] Offshore floating hoses are commonly used in the oil and gas industry as a way to load or offload liquids such as crude oil, liquefied natural gas, etc.

[0003] The offshore floating pipe consists of a main pipe body, a secondary pipe body and a floating body from the inside to the outside. An oil storage space layer is formed between the main pipe body and the secondary pipe body. When the main pipe body leaks, the liquid can flow into the oil storage space layer.

[0004] For offshore floating hoses, in order to detect whether there is crude oil leakage inside the hose, a visual window is usually installed at the upper end of the hose to allow operators to directly observe the situation inside the hose, and appropriate light sources such as bulbs are installed near the visual window, so that the staff can easily determine the leakage situation inside the hose. However, this method can only be viewed near the visual window and is highly dependent on experience. It is not convenient to view at a long distance.

[0005] Some floating tubes are equipped with floats, which are similar to the structure of pressure valves. When the tube leaks, the pressurized liquid leaks out from the oil storage space layer, and the float floats up under the pressure, which is convenient for staff to monitor and thus achieve the effect of reminder. However, this method requires a certain amount of liquid leakage to achieve the buoyancy required by the float. When the liquid just leaks or the leakage is small, it cannot be discovered in time.

[0006] Therefore, the above monitoring systems are not intelligent enough. First, they are highly dependent on the naked eye monitoring of the staff. Second, they cannot be monitored online. Third, they are often discovered only after a certain amount of pipe leakage. The monitoring is lagging and not timely enough, and it is impossible to monitor or prevent in advance. It does not conform to the development trend of intelligent and automated monitoring of floating hoses at sea. At the same time, once the cryogenic hose leaks, it will threaten the safety of the surrounding sea areas. The leakage of liquid will also cause economic losses, increase the operating costs of enterprises, and increase the burden on enterprises. This is a loss that enterprises cannot bear. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide an intelligent monitoring system for leakage of an offshore floating hose, which can detect liquid leakage as early as possible and in a timely manner, is not completely dependent on the occasion and experience, and has a high degree of intelligence and automation.

[0008] In order to solve the above problems, the technical solution adopted by the present invention is: An intelligent monitoring system for leakage of an offshore floating hose, comprising a leak detector arranged in the oil storage space layer of each offshore floating hose, a control system connected to all leak detectors, a central control room connected to the control system, a host computer arranged in the central control room, a leak detection analysis module installed in the host computer, and a terminal connected to the host computer; The leak detection analysis module is used to process the leakage signal transmitted from the leak detector via the control system; The host computer receives the leakage signal, and after being processed by the leakage detection and analysis module, it is transmitted to the terminal to realize remote transmission, reception, control, display and online alarm of the leakage signal; The leak detector is arranged in the oil storage space layer through a mounting bracket, the mounting bracket comprises a bottom plate, a mounting plate arranged on the top of the bottom plate, and a plurality of mounting holes arranged on the bottom plate, and the leak detector is arranged on the mounting plate through a mounting piece.

[0009] Furthermore, the mounting hole is a threaded hole, which is threadedly connected to the outer wall of the main pipe or the inner wall of the auxiliary pipe of the offshore floating hose.

[0010] Furthermore, the mounting hole is filled with strong glue, and the mounting hole and the bottom plate are connected to the outer wall of the main tube or the inner wall of the auxiliary tube through the strong glue.

[0011] Furthermore, the bottom plate is a curved bottom plate made of flexible material.

[0012] Furthermore, the mounting member is a mounting bolt.

[0013] Furthermore, the bottom plate is rotatably connected to the mounting plate. Furthermore, the leak detector is one or more of a pressure sensor, a flow sensor, a gas smoke sensor, an ultrasonic sensor, a vibration / displacement sensor, a photoelectric sensor, and an oil level sensor. Furthermore, the terminal is a mobile phone APP.

[0014] Furthermore, the oil storage space layer is also connected with a float.

[0015] Furthermore, a visual window is provided on the oil storage space layer.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are: The system is highly automated and intelligent, and does not need to rely entirely on the staff's naked eye / experience for monitoring. It can detect leaks in the early stages, and the monitoring is real-time and timely, which can achieve early prevention, effectively reduce the company's operating costs, and reduce threats to production safety in surrounding waters, which is in line with the concept of green environmental protection.

[0017] At the same time, there are also floats and visual windows. As traditional, non-intelligent monitoring methods, they work together with intelligent monitoring to play a multiple protection role. Once the intelligent monitoring system composed of the leak detector, control system, central control room, host computer, leak detection analysis module and terminal has problems, float and visual window monitoring can be used in time to play a double insurance role and improve the monitoring quality.

[0018] The system of the present invention has a simple structure, is easy to install, has low cost, significant economic benefits, and has high popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the system of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of the mounting bracket in the system of the present invention.

[0022] Figure 3 Schematic diagram of the overall network connection of the method of the present invention.

[0023] Figure 4 This is a composition diagram of the leak detection analysis module of the method of the present invention.

[0024] Figure 5 This is a composition diagram of the data preprocessing unit of the method of the present invention.

[0025] Among them: bottom plate 1, mounting plate 2, mounting hole 3, leak detector 4, control system 5, central control room 6, host computer 7, terminal 8, main pipe body 9, auxiliary pipe body 10, oil storage space layer 11. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the embodiments.

[0027] An intelligent monitoring system for leakage of floating hoses at sea, such as Figure 1 , Figure 2 As shown, it includes a leak detector 4 arranged in the oil storage space layer 11 of each offshore floating hose, a control system 5 connected to all leak detectors 4, a central control room 6 connected to the control system 5, a host computer 7 arranged in the central control room 6, a leak detection analysis module installed in the host computer 7, and a terminal 8 connected to the host computer 7.

[0028] The leak detection analysis module is used to process the leakage signal transmitted from the leak detector 4 via the control system 5 .

[0029] The upper computer 7 receives the leakage signal, and transmits it to the terminal 8 after being processed by the leakage detection and analysis module, so as to realize the remote transmission, reception, control, display and online alarm of the leakage signal.

[0030] like Figure 1 , Figure 2 The leak detector 4 is arranged in the oil storage space layer 11 through a mounting bracket. The mounting bracket includes a base plate 1, a mounting plate 2 arranged on the top of the base plate 1, and a plurality of mounting holes 3 arranged on the base plate 1. The leak detector 4 is arranged on the mounting plate 2 through a mounting member.

[0031] As one embodiment, the mounting hole 3 is a threaded hole, which is threadedly connected to the outer wall of the main pipe body 9 or the inner wall of the auxiliary pipe body 10 of the offshore floating hose. The threaded connection is faster. Figure 1 To be installed on the inner wall of the auxiliary tube body 10 As another embodiment, the mounting hole 3 is filled with strong glue, and the mounting hole 3 and the bottom plate 1 are connected to the outer wall of the main tube 9 or the inner wall of the auxiliary tube 10 through the strong glue. The adhesive connection is more convenient. You can choose one of the two methods.

[0032] In order to facilitate installation, the bottom plate 1 is designed as a curved bottom plate made of a flexible material, which is more easily attached to the outer wall of the main tube 9 or the inner wall of the auxiliary tube 10 .

[0033] The mounting parts are mounting bolts, and the bottom plate 1 and the mounting plate 2 are rotatably connected, so that the angle between the bottom plate 1 and the mounting plate 2 can be easily adjusted.

[0034] The leak detector 4 is one or more of a pressure sensor, a flow sensor, a gas smoke sensor, an ultrasonic sensor, a vibration / displacement sensor, a photoelectric sensor, and an oil level sensor. The terminal 8 is a mobile phone APP.

[0035] At the same time, the present invention does not abandon the traditional float and visual window. A float is also connected to the oil storage space layer 11, and a visual window is set. As a traditional, non-intelligent, existing monitoring means, the float and the visual window play a role of multiple protection, and the conventional technology does not need to be repeated. Once the intelligent monitoring system composed of the leak detector 4, the control system 5, the central control room 6, the host computer 7, the leak detection analysis module, and the terminal 8 has a problem, the float and the visual window can be used for monitoring in time, which plays a double insurance role and improves the monitoring quality.

[0036] Using the above system, the present invention also provides an intelligent monitoring method for crude oil leakage of a floating hose at sea, such as Figure 3The method is as follows: a leak detector 4 is arranged in the oil storage space layer 11 of each offshore floating hose, the leak detector 4 is connected to the control system 5, the control system 5 is connected to the central control room 6, a leak detection analysis module is installed in the host computer 7 of the central control room 6, the leak detection analysis module processes the leakage signal transmitted by the leak detector 4, and finally the host computer 7 displays the leakage signal through the terminal 8 and gives an online alarm.

[0037] In order to improve the detection accuracy and precision detection range, the leak detector 4 can be one or more of a pressure sensor, a flow sensor, a gas smoke sensor, an ultrasonic sensor, a vibration / displacement sensor, a photoelectric sensor, and an oil level sensor. Terminal 8 is a mobile phone APP, which can accurately locate which floating hose on the sea has leaked, and can alarm, realizing intelligent online monitoring. The mobile phone APP can automatically send alarm text messages to notify the operator in time.

[0038] like Figure 4 The leakage detection and analysis module includes a data preprocessing unit, a condition judgment unit, a feedback processing unit, and a signal sending unit which are connected in sequence, and the signal sending unit is connected to the terminal.

[0039] like Figure 5 The data preprocessing unit includes a data standardization subunit, a data union subunit and a data cleaning subunit connected in sequence. The data standardization subunit receives the leakage signal transmitted by the leak detector, and finally obtains the normalized data through the data cleaning subunit. The data standardization subunit processes the received leakage signal in the first step. If there is a value with a large deviation, it performs averaging, variance or fills it to zero. The data union subunit merges unnecessary data, and the data cleaning subunit further removes noise data and redundant data, retaining the real data required. After being processed by these three subunits, the normalized data is formed and can be transmitted to the next link for conditional judgment.

[0040] The condition judgment unit is provided with a plurality of condition thresholds, and the condition judgment unit performs adaptive judgment on the condition threshold and the obtained normalized data. If the normalized data is ≥ the condition threshold, it proves that leakage has occurred, and the feedback processing unit performs leakage marking. If the normalized data is < the condition threshold, it proves that no leakage has occurred, and the feedback processing unit does not perform leakage marking.

[0041] Regarding the leakage mark, the leakage mark includes the hose number, hose geographical location, judgment type, judgment time, and deviation ratio. The hose number corresponds to each floating hose at sea; the hose geographical location is the location coordinates of the leakage point; the judgment type is the content of the judgment, which matches the condition threshold; the judgment time is the time when the judgment occurs; the deviation ratio is the ratio of the normalized data to the condition threshold. If Deviation ratio ≥1.05, a mild warning; 1.3≥deviation ratio>1.05, moderate warning; The deviation ratio is greater than 1.3, which is a severe warning.

[0042] Matching the type of leak detector 4, the condition threshold includes one or more of pressure value, flow value, gas smoke value, ultrasonic value, vibration / displacement, photoelectric value, and oil level value, which can realize the monitoring of multiple signals. For example, there are 5 floating hoses at sea, named 001~005, and the geographical location is represented by three-dimensional coordinates. The judgment types include pressure value, flow value, gas smoke value, vibration / displacement, photoelectric value, etc., and the judgment time is accurate to year, month, day, hour, minute, and second.

[0043] Taking No. 001 as an example, the judgment type is pressure value, the normalized data is 1.012Mpa, and the condition threshold is 1Mpa, then the deviation ratio = normalized data / condition threshold = 1.012Mpa / 1Mpa = 1.012, which is a mild warning. Taking No. 003 as an example, the judgment type is gas smoke value, the normalized data is 1.07mg / m3 (milligrams / cubic meter), and the condition threshold is 1.02mg / m3, then the deviation ratio = normalized data / condition threshold = 1.074mg / m3 / 1.02mg / m3 = 1.053, which is a moderate warning. Other judgment types are not repeated here.

[0044] The specific contents of the leakage mark are shown in the table below. Combined with the deviation ratio and degree, the feedback processing unit transmits the leakage mark to the terminal 8 through the signal sending unit. The terminal 8 displays and locates the specific offshore floating hose, and can accurately locate which offshore floating hose is leaking. The geographical location, leakage amount, and leakage time can all be displayed and sent to the relevant maintenance personnel via text messages. Not only does it realize intelligent online monitoring, but the central control room 6 or the host computer 7 is also connected to the alarm, and the alarm can also sound an alarm. Therefore, the leakage of the offshore floating hose can be handled very intuitively, and prevention can be achieved in advance, effectively reducing the operating costs of the enterprise and reducing the threat to production safety in the surrounding sea areas. At the same time, once there is a problem with the intelligent online monitoring, it can also be monitored through traditional floats and visual windows, with double protection to effectively ensure the smooth progress of the monitoring effect.

[0045] The above description is only a preferred embodiment of the present embodiment and is not intended to limit the present embodiment. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. An intelligent monitoring system for leakage of floating hose at sea, characterized in that: It comprises a leak detector (4) arranged in the oil storage space layer (11) of each offshore floating hose, a control system (5) connected to all the leak detectors (4), a central control room (6) connected to the control system (5), a host computer (7) arranged in the central control room (6), a leak detection analysis module installed in the host computer (7), and a terminal (8) connected to the host computer (7); The leak detection analysis module is used to process the leakage signal transmitted from the leak detector (4) via the control system (5); The upper computer (7) receives the leakage signal, and after being processed by the leakage detection and analysis module, transmits it to the terminal (8), thereby realizing remote transmission, reception, control, display and online alarm of the leakage signal; The leak detector (4) is arranged in the oil storage space layer (11) via a mounting bracket, the mounting bracket comprising a base plate (1), a mounting plate (2) arranged on the top of the base plate (1), and a plurality of mounting holes (3) arranged on the base plate (1), and the leak detector (4) is arranged on the mounting plate (2) via a mounting member.

2. The intelligent monitoring system for leakage of an offshore floating hose according to claim 1, characterized in that: The mounting hole (3) is a threaded hole, which is threadedly connected to the outer wall of the main pipe body (9) or the inner wall of the auxiliary pipe body (10) of the offshore floating hose.

3. The intelligent monitoring system for leakage of an offshore floating hose according to claim 1 is characterized in that: The mounting hole (3) is filled with strong glue, and the mounting hole (3) and the bottom plate (1) are connected to the outer wall of the main pipe body (9) or the inner wall of the auxiliary pipe body (10) via the strong glue.

4. An intelligent monitoring system for leakage of an offshore floating hose according to claim 2 or 3, characterized in that: The bottom plate (1) is a curved bottom plate made of a flexible material.

5. An intelligent monitoring system for leakage of an offshore floating hose according to claim 2 or 3, characterized in that: The mounting parts are mounting bolts.

6. The intelligent monitoring system for leakage of an offshore floating hose according to claim 1, characterized in that: The bottom plate (1) is rotatably connected to the mounting plate (2).

7. The intelligent monitoring system for leakage of an offshore floating hose according to claim 1, characterized in that: The leak detector (4) is one or more of a pressure sensor, a flow sensor, a gas smoke sensor, an ultrasonic sensor, a vibration / displacement sensor, a photoelectric sensor, and an oil level sensor.

8. The intelligent monitoring system for leakage of an offshore floating hose according to claim 1, characterized in that: The terminal (8) is a mobile phone APP.

9. An intelligent monitoring system for leakage of an offshore floating hose according to any one of claims 1 to 8, characterized in that: The oil storage space layer (11) is also connected to a float.

10. An intelligent monitoring system for leakage of an offshore floating hose according to any one of claims 1 to 8, characterized in that: A visual window is also provided on the oil storage space layer (11).

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