Oil leakage detection and positioning device and method

Abstract

The present invention relates to the technical field of oil leakage detection, and in particular to an oil leakage detection and positioning device and method. The oil leakage detection and positioning device comprises: a plurality of oil leakage detection ropes, a detection connection row and an oil leakage controller; the input end of the oil leakage detection rope is arranged on the detection connection row along the length direction of the detection connection row, and the leaked oil penetrates into the oil leakage detection rope to make the detection line in the oil leakage detection rope conductive to form a loop; the output end of the detection connection row is connected to the input end of the oil leakage detection rope, and is used to form a current loop between the oil leakage controller and the oil leakage detection rope that conducts current when oil leaks, so that the oil leakage controller detects the current; the oil leakage controller is used to provide voltage, detect current value, determine the actual oil leakage position according to the current value and output it. The present invention can quickly and accurately determine the oil leakage position when oil leaks, solving the problem of requiring personnel to confirm twice.

Description

Technical Field

[0001] The invention relates to the technical field of oil leakage detection, and in particular to an oil leakage detection positioning device and method. Background Art

[0002] Oil storage and delivery equipment such as oil tanks, oil storage tanks, and oil pipelines may leak at any time as they age and are corroded by the external environment. Leakage accidents not only cause waste of resources and environmental pollution, but also cause fire and explosion accidents in serious cases. Therefore, it is very important to conduct leakage monitoring, timely and reliable alarm of leakage accidents, and accurately locate the leakage point.

[0003] At present, an oil leak detection system is generally used for oil leak detection. The oil leak detection system is composed of an oil leak controller and an oil leak detection rope. When an oil leak occurs, the oil leak detection rope can detect it in time and transmit the signal to the oil leak controller. After processing and analysis, the oil leak controller will issue an alarm to the operation and maintenance personnel through various means such as telephone, text message, APP, and display screen.

[0004] At present, the oil leakage position is determined in the length direction of the oil leakage detection rope, but the specific position of the oil leakage cannot be determined and needs further determination, and there is a problem that a second determination by personnel is required. Summary of the invention

[0005] Based on this, it is necessary to provide an oil leakage detection and positioning device and method to address the above-mentioned problems.

[0006] The embodiment of the present invention is implemented as follows: an oil leakage detection and positioning device, the oil leakage detection and positioning device comprising: a plurality of oil leakage detection ropes, a detection connection row and an oil leakage controller;

[0007] The input end of the oil leakage detection rope is arranged on the detection connecting row along the length direction of the detection connecting row, and the leaked oil penetrates into the oil leakage detection rope to make the detection line in the oil leakage detection rope conductive to form a loop;

[0008] The detection connection row is provided with a plurality of output ends, which are respectively connected to the input ends of a plurality of the oil leakage detection ropes, and are used to form a current loop between the oil leakage controller and the oil leakage detection ropes that conduct current when oil leakage occurs, so that the oil leakage controller can detect the current;

[0009] The voltage output end of the oil leakage controller is connected to the input end of the detection connection row. The oil leakage controller is used to provide voltage, detect current value, determine the actual oil leakage position according to the current value and output it.

[0010] In one embodiment, the present invention provides an oil leakage detection and positioning method, which is used in the above-mentioned oil leakage detection and positioning device, and the oil leakage detection and positioning method includes:

[0011] Monitor the current value and determine whether the current value is not 0. If so, determine the current value I;

[0012] The oil leakage detection rope determines the conduction current according to the current value I;

[0013] Determine the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current;

[0014] A three-dimensional model of the distribution of the oil leakage detection ropes in the oil leakage detection positioning device is established according to the actual distribution structure of the oil leakage detection ropes;

[0015] The coordinates of the actual position of the oil leakage are marked and displayed on the three-dimensional model according to the three-dimensional model, the oil leakage detection rope conducting current, and the oil leakage position along the extending direction of the oil leakage detection rope conducting current.

[0016] An oil leakage detection and positioning device provided by an embodiment of the present invention outputs current to an oil leakage detection rope through an oil leakage controller via a detection connection, monitors the current value, and when an oil leakage is detected, determines the actual oil leakage position according to the current value and outputs it. The present invention can quickly and accurately determine the oil leakage position when an oil leakage occurs, and outputs it in the form of coordinates or a three-dimensional model, etc., without the need for the user to perform a secondary confirmation on site, thus solving the problem of requiring a secondary confirmation by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an oil leakage detection and positioning device provided in an embodiment;

[0018] Figure 2 It is a schematic diagram of a partial three-dimensional structure of an oil leakage detection rope in one embodiment;

[0019] Figure 3 is a cross-sectional view of an oil leakage detection rope in one embodiment;

[0020] Figure 4 A schematic diagram of a partial three-dimensional structure of a detection connection row in an embodiment;

[0021] Figure 5 It is a circuit connection diagram of a detection connection bar and an oil leakage detection rope in one embodiment;

[0022] Figure 6 A schematic diagram of a conductive loop of an oil leakage detection rope after contacting oil in one embodiment;

[0023] Figure 7 is a structural diagram of an oil leakage detection and positioning device in one embodiment;

[0024] Figure 8A flowchart of an oil leak detection and positioning method in one embodiment;

[0025] Fig. 9 FIG. 4 is a block diagram of the internal structure of a computer device in one embodiment.

[0026] In the attached drawings: 1. Oil leakage detection rope; 11. Center line; 12. Isolation line; 13. First detection line; 14. Second detection line; 15. Oil suction expansion sleeve; 16. Limit sleeve; 17. Resistor; 2. Detection connection row; 21. Detection connection row input port; 22. Fixing buckle; 23. Detection connection row output port; 3. Oil leakage controller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It is understood that the terms "first", "second", etc. used in the present invention may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script without departing from the scope of the present invention.

[0029] like Figure 1 As shown, in one embodiment, an oil leakage detection and positioning device is proposed, which may specifically include: a plurality of oil leakage detection ropes 1, a detection connection row 2 and an oil leakage controller 3;

[0030] The input end of the oil leakage detection rope 1 is arranged on the detection receiving row 2 along the length direction of the detection receiving row 2, and the leaked oil penetrates into the oil leakage detection rope 1 to make the detection line in the oil leakage detection rope 1 conductive to form a loop;

[0031] The detection connection row 2 is provided with a plurality of output ends, which are respectively connected to the input ends of a plurality of the oil leakage detection ropes 1, and are used to form a current loop between the oil leakage controller 3 and the oil leakage detection ropes 1 that conduct current when oil leaks, so that the oil leakage controller 3 detects the current;

[0032] The voltage output end of the oil leakage controller 3 is connected to the input end of the detection connection row 2. The oil leakage controller 3 is used to provide voltage, detect current value, determine the actual oil leakage position according to the current value and output it.

[0033] In this embodiment, the oil leakage controller 3 outputs a current to the oil leakage detection rope 1 through the detection connection row 2. When there is no oil leakage, the oil leakage controller 3 cannot detect the current because there is no current loop that can conduct the current. When there is oil leakage, the two detection lines of the oil leakage detection rope 1 at the oil leakage location are connected, and a current loop is formed with the detection connection row 2 and the oil leakage controller 3 to generate current. Only when there is oil leakage, the output interface of the output end of the detection connection row 2 will transmit current to the input interface of the oil leakage detection rope 1 corresponding to the oil leakage position, and the oil leakage detection rope 1 corresponding to the oil leakage position will conduct current.

[0034] In this embodiment, the output end of the detection connection row 2 includes two interfaces, which correspond to the two interfaces of the input end of the oil leakage detection rope 1. The output end of the detection connection row 2 outputs current, so whether it is AC or DC, the output end of the detection connection row 2 needs to have two interfaces to form a loop, and the input end of the oil leakage detection rope 1 is also the same. If AC is used as the detection current, the interface can be L interface and N interface. If DC is used as the detection current, the interface can be positive and negative. Since the actual oil leakage position is determined based on the current value, the obtained current can be positive or negative, and the current value is used for calculation.

[0035] In this embodiment, an AC-DC conversion circuit or an AC interface and a DC interface may also be provided in the detection connection bank 2, which can be applied to more usage scenarios.

[0036] In this embodiment, there must be voltage when there is current, but there may not be current when there is voltage, such as in the case of short circuit. Therefore, the oil leakage controller 3 provides voltage and detects current. When there is no oil leakage, it is equivalent to a short circuit, and no current flows through the oil leakage detection rope 1; when there is oil leakage, it is equivalent to a circuit connection, and current is generated under the condition of input voltage.

[0037] In this embodiment, the oil leakage controller 3 can output in a variety of ways, for example, modeling on the display and color-coding the oil leakage location, displaying it on the display using coordinates, reminding the user through a mobile terminal and sending information with coordinates to the user, etc.

[0038] An oil leakage detection and positioning device provided by an embodiment of the present invention outputs current to an oil leakage detection rope 1 through an oil leakage controller 3 via a detection connection row 2, monitors the current value, and when an oil leakage is detected, determines the actual oil leakage position according to the current value and outputs it. The present invention can quickly and accurately determine the oil leakage position when an oil leakage occurs, and outputs it in the form of coordinates or a three-dimensional model, etc., without the need for the user to perform a secondary confirmation on site, thus solving the problem of requiring a secondary confirmation by personnel.

[0039] In one embodiment, the oil leakage detection ropes 1 are arranged in parallel on the same plane or every two adjacent oil leakage detection ropes 1 are cross-woven to form a mesh distribution.

[0040] In this embodiment, if the oil leakage detection ropes 1 are arranged in parallel on the same plane, then the oil leakage detection ropes 1 on each plane are arranged in parallel. If every two connected oil leakage detection ropes 1 are cross-woven to form a mesh distribution, then the oil leakage detection ropes 1 on each plane are distributed in a mesh. Whether it is parallel arrangement or mesh distribution, it is to determine the position of the oil leakage position in the direction perpendicular to the detection row 2. Figure 1 As shown, it is a specific embodiment that every two adjacent oil leakage detection ropes 1 are cross-woven to form a mesh distribution.

[0041] like Figure 2 , Figure 3 As shown, in one embodiment, the oil leakage detection rope 1 includes: a center line 11, an isolation line 12 surrounding the center line 11, a first detection line 13 and a second detection line 14 surrounding the center line 11 and arranged at intervals, an oil absorption expansion sleeve 15 with a gap between the first detection line 13 and the second detection line 14, and a limit sleeve 16 covered with the oil absorption expansion sleeve 15;

[0042] The center line 11 is used to separate the first detection line 13 from the second detection line 14;

[0043] The isolation lines 12 include a plurality of isolation lines, and are used to isolate the first detection line 13 from the second detection line 14 so that the first detection line 13 and the second detection line 14 do not contact each other;

[0044] The oil absorption expansion sleeve 15 is a swelling member, which expands after absorbing oil to make the first detection line 13 and the second detection line 14 contact;

[0045] The inner wall of the oil absorption expansion sleeve 15 is provided with a conductive layer, and the conductive layer contacts the first detection line 13 and the second detection line 14 after the oil absorption expansion sleeve 15 swells, so that the first detection line 13 and the second detection line form a conductive loop;

[0046] The limiting sleeve 16 has a hole for oil to pass through.

[0047] In this embodiment, the isolation line 12, the first detection line 13, and the second detection line 14 are spirally wound on the center line 11, and the first detection line 13 and the second detection line 14 are separated by the isolation line 12 and the center line 11. There are at least two isolation lines 12. The center line 11 and the isolation line 12 are both insulated, for example, an insulating sleeve is provided on the surface of the center line 11 and the isolation line 12.

[0048] In this embodiment, the input end of the first detection line 13 and the input end of the second detection line 14 constitute the input end of the oil leakage detection rope 1, which is used to transmit current. The first detection line 13 and the second detection line 14 have no output end. It can be understood that when the first detection line 13 and the second detection line 14 are in contact due to the oil suction expansion sleeve 15, assuming that current flows into the input end of the first detection line 13, then the input end of the second detection line 14 flows out of current, so the input end of the first detection line 13 and the input end of the second detection line 14 constitute the input end of the oil leakage detection rope 1.

[0049] In this embodiment, the first detection line 13 and the second detection line 14 can be the same resistance line, for example, a resistance line made of nickel-chromium alloy. The first detection line 13 and the second detection line 14 are not connected.

[0050] In this embodiment, after the oil absorption expansion sleeve 15 absorbs oil and expands, the outer portion cannot expand outward due to the limit sleeve 16. Since the conductive layer is provided inside, after expansion, the first detection line 13 and the second detection line 14 are in contact at the expansion position to form a conductive loop. At this time, due to the existence of voltage, the current of the conductive loop flows, and the oil leakage controller 3 detects the current.

[0051] In this embodiment, if the method of cross-weaving between every two connected oil leakage detection ropes 1 to form a mesh distribution is adopted, when the oil leakage occurs at the intersection, since it takes a certain time for the oil absorption expansion sleeve 15 to absorb oil and expand, the time for the two oil leakage detection ropes 1 at the intersection to form a conductive loop is inconsistent, so it is only necessary to determine the first detected current.

[0052] like Figure 4 As shown, in one embodiment, the detection row 2 is provided with a detection row input port 21, a fixing buckle 22 and a detection row output port 23;

[0053] The detection input port 21 is connected to the voltage output end of the oil leakage controller 3, and is used to receive the voltage output by the oil leakage controller 3;

[0054] The fixing buckles 22 include a plurality of fixing buckles 22, each of which is fixed to the end of an oil leakage detection rope 1, and is used to fix the oil leakage detection rope 1;

[0055] The detection output ports 23 include a plurality of detection output ports 23, each of which is connected to the input end of an oil leakage detection rope 1, and is used to form a current loop between the oil leakage controller 3 and the oil leakage detection rope 1 that conducts current when oil leakage occurs, so that the oil leakage controller 3 can detect the current.

[0056] In this embodiment, the detection connection row input port 21 is the input end of the detection connection row 2 , and the detection connection row output port 23 is the output end of the detection connection row 2 .

[0057] In this embodiment, the function of the detection connection row 2 is to determine the position of the oil leakage location in the direction of the detection connection row 2. At this time, the position of the oil leakage location in the direction perpendicular to the detection connection row 2 is determined. Combined with the actual distribution of the oil leakage detection rope 1, the actual position of the oil leakage can be determined, which can be regarded as determining the coordinates of the oil leakage location.

[0058] In this embodiment, the detection connection row output port 23 includes two interfaces, which are not connected to each other. Each interface is connected to an interface corresponding to the input end of the oil leakage detection rope 1. For example, the interface of the detection connection row output port 23 is an L interface and an N interface, then the L interface of the detection connection row 2 is connected to the L interfaces of all the oil leakage detection ropes 1, and the N interface of the detection connection row 2 is connected to the N interfaces of all the oil leakage detection ropes 1.

[0059] In this embodiment, the end of the oil leakage detection rope 1 refers to the other end different from the output end of the oil leakage detection rope 1. Since the first detection line 13 and the second detection line 14 have no output end, the oil leakage detection rope also has no output end.

[0060] like Figure 5 As shown, in one embodiment, a resistor 17 is provided between two adjacent detection row output ports 23 of the detection row 2 , and the resistance value of one resistor 17 is equal to the resistance value of one oil leakage detection rope 1 .

[0061] In this embodiment, the resistor 17 is provided to determine the oil leakage detection rope 1 that conducts current.

[0062] In this embodiment, the detection connection row output port 23 includes two interfaces, which are not connected to each other, and each interface is connected to an interface corresponding to the input end of the oil leakage detection rope 1, that is, for one interface, the interface is connected to a corresponding interface of the input end of the oil leakage detection rope 1. Figure 5 As shown, the resistor 17 only needs to be set on the wire of one interface. For example, the two interfaces of the detection output port 23 are the first interface and the second interface respectively. The first interface is connected to the first detection line 13 of the oil leakage detection rope 1. The resistor 17 only needs to be set between the first detection lines 13 of two adjacent oil leakage detection ropes 1, and it does not need to be set on the second interface connected to the second detection line 14.

[0063] In this embodiment, assuming that the oil leakage occurs at the end of the oil leakage detection rope 1, the current needs to flow through the first detection line 13 and the second detection line 14. At this time, the resistance value is the sum of the resistance values ​​of the first detection line 13 and the second detection line 14. Therefore, the resistance value of the resistor 17 set in the detection connection row 2 is equal to the resistance value of one oil leakage detection rope 1. Here, the resistance value of one oil leakage detection rope 1 is equal to the resistance value of the first detection line 13 plus the resistance value of the second detection line 14. The first detection line 13 and the second detection line 14 are the same resistance lines. For example, when the oil leakage occurs in the second oil leakage detection rope 1 along the length direction of the detection connection row 2, the current passes through a resistor 17 on the detection connection row 2. At this time, it can be known that the oil leakage did not occur at the first oil leakage detection rope 1, because if the oil leakage occurs on the first oil leakage detection rope 1, then the current does not need to pass through a resistor 17, but forms a current loop on the first oil leakage detection rope 1. Therefore, in this way, it can be determined that the oil leakage occurs on the second oil leakage detection rope 1 along the length direction of the detection connection row 2.

[0064] In this embodiment, if Figure 6 As shown in the figure, P is the location of the oil leak, and the block hollow arrow is the direction of the current flow. When oil leaks at P, the current flows in from an interface of the detection row input port 21, and passes through Figure 6 The first resistor 17 flows into Figure 6 In the first detection line 13 of the second oil leakage detection rope 1, after the oil absorption expansion sleeve 15 at P absorbs oil and expands, the first detection line 13 and the second detection line 14 at P form a current conduction loop, so the current flows from the first detection line 13 to the second detection line 14 at P, and flows out at the other interface of the detection connection input port 21.

[0065] like Figure 7 As shown, in one embodiment, the oil leakage controller 3 includes a power supply module, a current detection module and a main control module;

[0066] The power supply module is used to provide voltage so that the oil leakage controller 3 detects current when oil leaks;

[0067] The detection end of the current detection module is connected to the output end of the power module, and the data sending end is connected to the data receiving end of the main control module, for detecting the current value and sending the detected current value to the main control module;

[0068] The main control module is used to determine the actual oil leakage position according to the current value and output it.

[0069] In this embodiment, the output end of the power module is the voltage output end of the oil leakage controller 3. The detection end of the current detection module can be connected to an interface of the output end of the power module. For example, the output end of the power module is a positive and negative pole, and the detection end of the current detection module is connected to the negative pole. The data sending end is used to send the current value, so the data receiving end of the main control module is used to receive the current value and process it. In essence, it is the principle of the MCU chip detecting the current value. This is a common technology and will not be explained here.

[0070] In this embodiment, the oil leakage controller 3 can be a device or a collection of multiple devices. If it is a collection of multiple devices, the oil leakage controller 3 also includes a communication module. For example, the current detection module, the power module and the communication module are integrated in a device A, and the device A is used to provide voltage and detect current value, and send the detected current value to the main control module through the communication module. The main control module can be a terminal. A main control module can be connected to multiple devices at the same time and serve as the main control module of multiple oil leakage controllers 3 at the same time. If the oil leakage controller 3 is a device, the power module also provides power for the current detection module and the main control module. If it is a collection of multiple devices, the power of the current detection module and the main control module can be provided by other power modules.

[0071] like Figure 8 As shown, in one embodiment, a method for oil leakage detection and positioning is provided, which may specifically include the following steps:

[0072] Monitor the current value and determine whether the current value is not 0. If so, determine the current value I;

[0073] The oil leakage detection rope determines the conduction current according to the current value I;

[0074] Determine the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current;

[0075] A three-dimensional model of the distribution of the oil leakage detection ropes in the oil leakage detection positioning device is established according to the actual distribution structure of the oil leakage detection ropes;

[0076] The coordinates of the actual position of the oil leakage are marked and displayed on the three-dimensional model according to the three-dimensional model, the oil leakage detection rope conducting current, and the oil leakage position along the extending direction of the oil leakage detection rope conducting current.

[0077] In this embodiment, if the current value is always 0, it means that no oil leakage is detected. At this time, the current value continues to be detected until the current value is not zero.

[0078] In this embodiment, determining the oil leakage detection rope that conducts current and determining the oil leakage position along the extension direction of the oil leakage detection rope that conducts current essentially determines the coordinates of the actual position of the oil leakage. For example, the oil leakage detection rope that conducts current is determined to be the second oil leakage detection rope arranged along the length direction of the detection row, and the distance of the oil leakage position in the extension direction of the second oil leakage detection rope is. According to the three-dimensional model, the position of the second oil leakage detection rope and the distance of the oil leakage position in the extension direction of the second oil leakage detection rope can be known, so that the coordinates of the actual position of the oil leakage can be determined on the three-dimensional model, for example, Figure 6 As shown in the figure, we only need to know which oil leak detection rope and the value of x to know the coordinates of the oil leak location. Even if the three-dimensional model is a three-dimensional structure, since the arrangement order and length are known, the specific three-dimensional position can also be determined, such as Figure 1 , Figure 6 As shown, Figure 1 The three-dimensional model of the oil leakage detection and positioning device in the main control module is presented in the form and Figure 1 The coordinates of each oil leak detection rope on the three-dimensional model are determined, and the coordinates of each position on each oil leak detection rope are also determined. Figure 6 , the three-dimensional coordinates of the oil leak location can be determined.

[0079] In this embodiment, the establishment of a three-dimensional model of the distribution of the oil leakage detection rope in the oil leakage detection and positioning device can be achieved by using existing technologies. For example, the image acquisition terminal takes an actual image of the oil leakage detection and positioning device, and the distribution of the oil leakage detection rope in the oil leakage detection and positioning device can be determined by image recognition technology, and then modeling is performed. Other methods will not be described in detail here. The establishment of a three-dimensional model is the same as the installation of the oil leakage detection rope, which is a preparatory work in advance. The embodiment is not only Figure 1 As shown, Figure 1 The scene shown may be a rectangular scene such as a fuel tank of a car.

[0080] In this embodiment, marking and displaying the coordinates of the actual location of the oil leak are performed on the three-dimensional model. These are conventional display technologies and will not be described in detail here.

[0081] An oil leakage detection and positioning method provided by an embodiment of the present invention outputs current to the oil leakage detection rope through the oil leakage controller through the detection connection, monitors the current value, and when an oil leakage is sent, determines the oil leakage detection rope that conducts the current according to the current value I; determines the oil leakage position along the extension direction of the oil leakage detection rope that conducts the current according to the current value I and the oil leakage detection rope that conducts the current; establishes a three-dimensional model of the distribution of the oil leakage detection rope in the oil leakage detection and positioning device according to the actual distribution structure of the oil leakage detection rope; determines the coordinates of the actual position of the oil leakage on the three-dimensional model based on the three-dimensional model, the oil leakage detection rope that conducts the current, and the oil leakage position along the extension direction of the oil leakage detection rope that conducts the current. The present invention can quickly and accurately determine the oil leakage position when there is an oil leakage, and output it in the form of coordinates or three-dimensional models, etc., without the need for users to conduct secondary confirmation on site, thus solving the problem of requiring secondary confirmation by personnel.

[0082] In one embodiment, the oil leakage detection rope that determines the conduction current according to the current value I includes:

[0083] Determine the voltage U output by the oil leakage controller;

[0084] Determine the current range of each oil leakage detection rope according to the voltage U output by the oil leakage controller and the resistance set in the detection connection row;

[0085] For each oil leakage detection rope, it is determined whether the current value falls within the current range of the oil leakage detection rope. If so, the oil leakage detection rope is determined as an oil leakage detection rope that conducts current.

[0086] In this embodiment, the voltage U output by the oil leakage controller may be a constant voltage, for example, 220V.

[0087] In this embodiment, each oil leakage detection rope has a current range, and the current ranges do not interact with each other, so the current value can directly determine the oil leakage detection rope that conducts current.

[0088] In one embodiment, the current range of each oil leakage detection rope is determined according to the voltage U output by the oil leakage controller and the resistance set by the detection connection row, including:

[0089] Arrange the input ends of the oil leakage detection ropes from small to large according to the order in which they are arranged along the length direction of the detection connection row;

[0090] For the kth oil leakage detection rope, Obtain the minimum current value of the oil leakage detection rope;

[0091] Depend on Obtain the maximum current value of the oil leakage detection rope;

[0092] Determine the current range of the oil leakage detection rope according to the minimum and maximum current values ​​of the oil leakage detection rope;

[0093] Among them, k is the serial number of the oil leakage detection rope in the sorting, R is the resistance value of a resistor, the resistance value of an oil leakage detection rope is equal to the resistance value of a resistor, and r is the resistance of the wire between two adjacent output ends of the detection connection row.

[0094] In this embodiment, the total resistance needs to consider r in order to eliminate the influence of the wires in the detection connection row on the current. In fact, the value of r is very small. Theoretically, when R is large enough and r is very small relative to R, r can be ignored. For the oil leakage detection rope whose oil leakage location occurs at the front of the ranking, that is, k is very small, in fact, r*k can be ignored, but if the oil leakage location occurs at the back of the ranking, that is, k is very large, then the influence of the wires in the detection connection row on the current becomes larger, and at this time r*k may not be ignored, so r is considered together when calculating the resistance. The wire between the two adjacent output ends of the wiring is generally very short and the resistance of the wire is very small, so r can be uniformly used to represent the resistance of this section of the wire. For the first oil leakage detection rope, r is the resistance of the wire from the input end of the detection connection row to the first output end. Although the length of this section of the wire will be longer, because the resistance of the wire is very small, r can also be used to represent this section of the wire.

[0095] In this embodiment, for the first oil leakage detection rope, no resistor is set between the input end and the first output end of the detection connection row, so and To calculate the current range. If a resistor is set between the input terminal and the first output terminal of the detection connection, then Calculate the minimum current value of the oil leakage detection rope, To calculate the maximum current value of the oil leakage detection rope, thereby obtaining the maximum value of the oil leakage detection rope.

[0096] In this embodiment, the minimum current value of the oil leakage detection rope considers that the oil leakage occurs at the end of the oil leakage detection rope, and the maximum current value of the oil leakage detection rope considers that the oil leakage occurs at the beginning of the oil leakage detection rope, so the minimum current value has an additional resistance of the oil leakage detection rope in the calculation process, that is, R, where the resistance of an oil leakage detection rope is equal to the resistance of the first detection line plus the resistance of the second detection line, and the first detection line and the second detection line are the same resistance line. In the actual installation process, a part of the end of the oil leakage detection rope is fixed to the fixed buckle, so the current range of the oil leakage detection rope is greater than the minimum current value and less than or equal to the maximum current value.

[0097] In one embodiment, the method of determining the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current includes:

[0098] The value of k of the oil leakage detection rope conducting current is recorded as a;

[0099] Depend on Obtaining the oil leakage position along the extending direction of the oil leakage detection rope conducting the current;

[0100] Wherein, b is the resistance per unit length of the oil leakage detection rope.

[0101] In this embodiment, the resistance per unit length of the oil leakage detection rope is the sum of the resistance per unit length of the first detection line along the length direction of the oil leakage detection rope and the resistance per unit length of the second detection line along the length direction of the oil leakage detection rope. The resistance per unit length of the first detection line along the length direction of the oil leakage detection rope mentioned here is not the resistance per unit length of the first detection line. This is because the first detection line is wrapped around the center line of the oil leakage detection rope, and the unit length of the first detection line along the length direction of the oil leakage detection rope is greater than the unit length of the first detection line, so the resistance per unit length of the first detection line along the length direction of the oil leakage detection rope is greater than the resistance per unit length of the first detection line. The same is true for the second detection line. If the first detection line and the second detection line are not wrapped around the center line of the oil leakage detection rope, but are arranged in parallel close to the center line of the oil leakage detection rope, then the resistance per unit length of the first detection line along the length direction of the oil leakage detection rope is the resistance per unit length of the first detection line, and the resistance per unit length of the oil leakage detection rope is the sum of the resistance per unit length of the first detection line and the resistance per unit length of the second detection line.

[0102] In this embodiment, it is assumed that the resistivity of the first detection line is ρ, and the total resistance of the first detection line is ρ*D / S, where D is the total length of the first detection line, and S is the cross-sectional area of ​​the first detection line. The second detection line is similar. Since the first detection line and the second detection line are the same resistance line, the resistivity is the same. The number of turns of the first detection line per unit length of the oil leakage detection rope is fixed, that is, the length of the first detection line per unit length of the oil leakage detection rope is known, so b is 2*ρ*d / S, where d is the length of the first detection line per unit length of the oil leakage detection rope.

[0103] In this embodiment, for the first oil leakage detection rope, r is the resistance of the wire from the input end of the detection connection row to the first output end. No resistance is set between the input end and the first output end of the detection connection row, so To determine the oil leakage position along the extension direction of the oil leakage detection rope that conducts current. If a resistor is set between the input end and the first output end of the detection connection, then

[0104]

[0105] In this embodiment, assuming that current flows into the first detection line, and the first detection line and the second detection line are connected when oil leaks, the current will flow out from the second detection line, and the actual length of the current is twice the oil leakage position along the extension direction of the oil leakage detection rope that conducts the current, that is, a turn. Since the first detection line and the second detection line are the same resistance lines, the resistance per unit length of the oil leakage detection rope is the sum of the resistance per unit length of the first detection line along the length direction of the oil leakage detection rope and the resistance per unit length of the second detection line along the length direction of the oil leakage detection rope. Therefore, the resistance per unit length of the oil leakage detection rope can essentially be regarded as twice the resistance per unit length of the first detection line along the length direction of the oil leakage detection rope.

[0106] Fig. 9 The internal structure diagram of a computer device in one embodiment is shown. The computer device may specifically be Figure 7 The main control module in Fig. 9 As shown, the computer device includes a processor, a memory, a network interface, an input device and a display screen connected through a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor can implement an oil leakage detection and positioning method provided in an embodiment of the present invention. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor can execute an oil leakage detection and positioning method provided in an embodiment of the present invention. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covering the display screen, or a button, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0107] Those skilled in the art will understand that Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation on the computer device to which the solution of the present invention is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0108] In one embodiment, a computer device is provided, the computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the following steps are implemented:

[0109] Monitor the current value and determine whether the current value is not 0. If so, determine the current value I;

[0110] The oil leakage detection rope determines the conduction current according to the current value I;

[0111] Determine the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current;

[0112] A three-dimensional model of the distribution of the oil leakage detection ropes in the oil leakage detection positioning device is established according to the actual distribution structure of the oil leakage detection ropes;

[0113] The coordinates of the actual position of the oil leakage are marked and displayed on the three-dimensional model according to the three-dimensional model, the oil leakage detection rope conducting current, and the oil leakage position along the extending direction of the oil leakage detection rope conducting current.

[0114] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the processor performs the following steps:

[0115] Monitor the current value and determine whether the current value is not 0. If so, determine the current value I;

[0116] The oil leakage detection rope determines the conduction current according to the current value I;

[0117] Determine the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current;

[0118] A three-dimensional model of the distribution of the oil leakage detection ropes in the oil leakage detection positioning device is established according to the actual distribution structure of the oil leakage detection ropes;

[0119] The coordinates of the actual position of the oil leakage are marked and displayed on the three-dimensional model according to the three-dimensional model, the oil leakage detection rope conducting current, and the oil leakage position along the extending direction of the oil leakage detection rope conducting current.

[0120] It should be understood that, although each step in the flow chart of each embodiment of the present invention is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0121] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0122] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0123] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An oil leakage detection and positioning device, characterized in that: The oil leakage detection and positioning device comprises: a plurality of oil leakage detection ropes, a detection connection row and an oil leakage controller; The input end of the oil leakage detection rope is arranged on the detection connecting row along the length direction of the detection connecting row, and the leaked oil penetrates into the oil leakage detection rope to make the detection line in the oil leakage detection rope conductive to form a loop; The detection connection row is provided with a plurality of output ends, which are respectively connected to the input ends of a plurality of the oil leakage detection ropes, and are used to form a current loop between the oil leakage controller and the oil leakage detection ropes that conduct current when oil leakage occurs, so that the oil leakage controller can detect the current; The voltage output end of the oil leakage controller is connected to the input end of the detection connection row, and the oil leakage controller is used to provide voltage, detect current value, determine the actual oil leakage position according to the current value and output it; The oil leakage detection ropes are arranged in parallel on the same plane or every two adjacent oil leakage detection ropes are cross-woven to form a mesh distribution; The oil leakage detection rope comprises: a center line, an isolation line surrounding the center line, a first detection line and a second detection line surrounding the center line and arranged at intervals, an oil absorption expansion sleeve with a gap between the first detection line and the second detection line, and a limit sleeve covered on the oil absorption expansion sleeve; The center line is used to separate the first detection line from the second detection line; The isolation lines include a plurality of isolation lines, and are used to isolate the first detection line from the second detection line so that the first detection line and the second detection line do not contact each other; The oil absorption expansion sleeve is a swelling member, which expands after absorbing oil to make the first detection line contact with the second detection line; The inner wall of the oil absorption expansion sleeve is provided with a conductive layer, and the conductive layer contacts the first detection line and the second detection line after the oil absorption expansion sleeve swells, so that the first detection line and the second detection line form a conductive loop; The limiting sleeve has a hole for oil to pass through.

2. The oil leakage detection and positioning device according to claim 1, characterized in that: The detection connection row is provided with a detection connection row input port, a fixing buckle and a detection connection row output port; The detection input port is connected to the voltage output end of the oil leakage controller, and is used to receive the voltage output by the oil leakage controller; The fixing buckles include a plurality of fixing buckles, each of which is fixed to the end of an oil leakage detection rope and is used to fix the oil leakage detection rope; The detection connection and output ports include several ones, each of which is connected to the input end of an oil leakage detection rope, and is used to form a current loop between the oil leakage controller and the oil leakage detection rope that conducts current when oil leakage occurs, so that the oil leakage controller can detect the current.

3. The oil leakage detection and positioning device according to claim 2, characterized in that: A resistor is arranged between two adjacent detection row output ports of the detection row, and the resistance value of one resistor is equal to the resistance value of one oil leakage detection rope.

4. The oil leakage detection and positioning device according to claim 1, characterized in that: The oil leakage controller includes a power supply module, a current detection module and a main control module; The power supply module is used to provide voltage so that the oil leakage controller detects current when oil leaks; The detection end of the current detection module is connected to the output end of the power module, and the data sending end is connected to the data receiving end of the main control module, for detecting the current value and sending the detected current value to the main control module; The main control module is used to determine the actual oil leakage position according to the current value and output it.

5. An oil leakage detection and positioning method, used for the oil leakage detection and positioning device according to any one of claims 1 to 4, characterized in that: The oil leakage detection and positioning method comprises: Monitor the current value and determine whether the current value is not 0. If so, determine the current value I; The oil leakage detection rope determines the conduction current according to the current value I; Determine the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current; A three-dimensional model of the distribution of the oil leakage detection ropes in the oil leakage detection positioning device is established according to the actual distribution structure of the oil leakage detection ropes; The coordinates of the actual position of the oil leakage are marked and displayed on the three-dimensional model according to the three-dimensional model, the oil leakage detection rope conducting current, and the oil leakage position along the extending direction of the oil leakage detection rope conducting current.

6. The oil leakage detection and positioning method according to claim 5, characterized in that: The oil leakage detection rope that determines the conduction current according to the current value I comprises: Determine the voltage U output by the oil leakage controller; Determine the current range of each oil leakage detection rope according to the voltage U output by the oil leakage controller and the resistance set in the detection connection row; For each oil leakage detection rope, it is determined whether the current value falls within the current range of the oil leakage detection rope. If so, the oil leakage detection rope is determined as an oil leakage detection rope that conducts current.

7. The oil leakage detection and positioning method according to claim 6, characterized in that: The current range of each oil leakage detection rope is determined according to the voltage U output by the oil leakage controller and the resistance set by the detection connection row, including: Arrange the input ends of the oil leakage detection ropes from small to large according to the order in which they are arranged along the length direction of the detection connection row; For the kth oil leakage detection rope, Obtain the minimum current value of the oil leakage detection rope; Depend on Obtain the maximum current value of the oil leakage detection rope; Determine the current range of the oil leakage detection rope according to the minimum and maximum current values ​​of the oil leakage detection rope; Among them, k is the serial number of the oil leakage detection rope in the sorting, R is the resistance value of a resistor, the resistance value of an oil leakage detection rope is equal to the resistance value of a resistor, and r is the resistance of the wire between two adjacent output ends of the detection connection row.

8. The oil leakage detection and positioning method according to claim 7, characterized in that: The method of determining the oil leakage position along the extending direction of the oil leakage detection rope conducting the current according to the current value I and the oil leakage detection rope conducting the current comprises: The value of k of the oil leakage detection rope conducting current is recorded as a; Depend on Obtaining the oil leakage position along the extending direction of the oil leakage detection rope conducting the current; Wherein, b is the resistance per unit length of the oil leakage detection rope.

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