CN118090082A - Oil leakage quantitative monitoring system and method - Google Patents
Oil leakage quantitative monitoring system and method Download PDFInfo
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- CN118090082A CN118090082A CN202410494946.1A CN202410494946A CN118090082A CN 118090082 A CN118090082 A CN 118090082A CN 202410494946 A CN202410494946 A CN 202410494946A CN 118090082 A CN118090082 A CN 118090082A
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- 238000011155 quantitative monitoring Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 86
- 238000007599 discharging Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 116
- 230000000903 blocking effect Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
- G01F15/075—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
- G01F15/0755—Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means involving digital counting
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- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of liquid leakage detection, and discloses a quantitative monitoring system and a quantitative monitoring method for oil leakage, wherein the quantitative monitoring system comprises a detection part which is connected with an oil conveying mechanism connecting part through a pipeline and has a certain volume, and a control module which is connected with the detection part through a wire harness, wherein the control module performs data interaction with a remote background server through a network; the detection part is provided with a feeding part and a discharging part, the detection part is internally provided with an oil drop port facing the discharging part, the diameter range of the oil drop port is 3-6mm, and leaked oil enters the detection part from the feeding part under the action of gravity and is formed into liquid drops through the oil drop port to be discharged to the discharging part; the detection part is also internally provided with a photoelectric sensor, and the optical path of the photoelectric sensor passes through the lower part of the oil drop port and is blocked when the liquid drop drops into the discharge part. The invention has simple structure and provides more accurate monitoring performance, and simultaneously can rapidly determine and alarm when the quantity is excessive.
Description
Technical Field
The invention belongs to the technical field of leakage detection, and particularly relates to a quantitative monitoring system and method for oil leakage.
Background
The detection technology of liquid leakage aiming at the pipe conveying equipment is more, and the detection technology is generally used for detecting only certain specific areas where leakage possibly occurs by arranging corresponding sensors. The general detection principle includes the following technical routes, one of which is to determine that leakage occurs if liquid exists in a defined detection area, one of which is to monitor flow values before and after the detection, and determine that leakage occurs if a flow difference occurs, and the other of which is to collect a pipeline or a container with a flowmeter at a corresponding position.
The three modes are mainly realized by adopting a flowmeter or a liquid detection sensor, but the leakage can only be realized by adopting the flowmeter and the liquid detection sensor according to the situation that the leakage just occurs and the minimum detection value of the flowmeter is met for a certain time, and the leakage quantity is smaller, but when more accurate flow detection and judgment are needed, the leakage cannot be realized by adopting the flowmeter and the liquid detection sensor, especially when error interference is needed to be judged, for example, the condensate water condition interference caused by temperature or humidity change is needed, and the existing leakage equipment cannot be adopted. In addition, the traditional method cannot monitor small leakage in real time, so that the detection precision can be improved, millisecond-level monitoring is achieved, and compared with the traditional method, early warning can be performed in advance, the application provides a new design.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a quantitative monitoring system and a quantitative monitoring method for oil leakage, which aim to eliminate errors through a more accurate monitoring device, acquire wider leakage conditions and analyze the leakage conditions.
The technical scheme adopted by the invention is as follows:
In a first aspect, the present invention provides a quantitative monitoring system for oil leakage, configured to receive oil leaked from a connection portion of an oil delivery mechanism and monitor the oil by forming droplets, including a detection portion connected to the connection portion of the oil delivery mechanism through a pipe and having a certain volume, and a control module connected to the detection portion through a wire harness, where the control module performs data interaction with a remote background server through a network;
The detection part is provided with a feeding part and a discharging part;
the detection part is internally provided with an oil drop port facing the discharge part, the diameter range of the oil drop port is 3-6mm, and leaked oil enters the detection part from the feed part under the action of gravity and is formed into liquid drops through the oil drop port to be discharged to the discharge part;
The detection part is also internally provided with a photoelectric sensor, and the optical path of the photoelectric sensor passes through the lower part of the oil drop port and is blocked when the liquid drop drops into the discharge part.
With reference to the first aspect, the present invention provides a first implementation manner of the first aspect, where the feeding portion includes a feeding inner tube and an oil drop portion that are vertically communicated and are located in the detecting portion, the feeding inner tube has an end portion that penetrates from the top of the detecting portion, and a feeding port is provided on the penetrating end portion, and the oil drop port is provided at a lower end portion of the oil drop portion.
With reference to the first implementation manner of the first aspect, the present invention provides a second implementation manner of the first aspect, where the discharging portion includes a discharging inner tube located in the detecting portion, one end of the discharging inner tube penetrates out of the detecting portion, and a discharging port is provided at the penetrated end;
the discharging inner pipe is provided with an opening in the detecting part, and the oil dropping part penetrates through the opening;
the discharging inner tube is provided with a through hole which is positioned at the lower side of the oil dripping part and is perpendicular to the axial direction, and the optical path of the photoelectric sensor passes through the through hole.
With reference to the second implementation manner of the first aspect, the present invention provides a third implementation manner of the first aspect, where the oil drop part has a tubular structure, and the oil drop part is inserted into the discharging inner pipe and is attached to the inner wall of the discharging inner pipe;
the oil dripping part is provided with a conical head part at one inserted end, the oil dripping opening is arranged at the center of a circular plane arranged at the top of the conical head part, and the edge of the oil dripping opening does not exceed the edge of the circular plane;
A plurality of second oil discharge ports are arranged on the conical surface of the conical head part around the equal central angles of the axis of the oil dropping part.
With reference to the second embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the surface of the feeding inner tube in the detecting portion is provided with a plurality of first oil discharge ports, and the surface of the discharging inner tube in the detecting portion is also provided with a plurality of third oil discharge ports.
With reference to the third or fourth implementation manner of the first aspect, the present invention provides a fifth implementation manner of the first aspect, wherein the detecting portion is a tubular structure with openings on two sides, a top cover is detachably connected to the opening on one side of the detecting portion, and the feeding portion is disposed on the top cover; the opening at the other side of the detection part is detachably connected with a bottom cover, and the discharging part is arranged on the bottom cover;
the top cover and the bottom cover are both arranged on the detection part, and the axes of the feeding part and the discharging part are collinear.
With reference to the second implementation manner of the first aspect, the present invention provides a sixth implementation manner of the first aspect, where the photoelectric sensor includes two columnar emitters and receivers, the through hole is a detection installation position where two axes disposed on the discharging inner tube are collinear, and ends of the emitters and the receivers are disposed in the detection installation position in opposite directions.
With reference to the sixth implementation manner of the first aspect, the present invention provides a seventh implementation manner of the first aspect, wherein a cable fixing seat for fixing and branching is provided inside the detection portion, a cable port is further provided outside the detection portion, an external wire harness enters the detection portion from the cable port and is fixed by the cable fixing seat, and two independent cables are separated from the cable fixing seat and are respectively connected with the transmitter and the receiver.
With reference to the fifth implementation manner of the first aspect, the present invention provides an eighth implementation manner of the first aspect, where the top cover and the bottom cover are both in threaded fit with the detection portion, and a sealing ring is provided at the connection portion for sealing.
In a second aspect, the invention provides a method for quantitatively monitoring oil leakage, which adopts one of the quantitative monitoring systems to detect oil leakage at a connecting part of an oil conveying mechanism, and specifically comprises the following steps:
firstly, arranging a detection part and a control module at the lower part of a connecting part of a corresponding oil conveying mechanism, arranging a bearing structure fixed on the connecting part at the lower part of the connecting part, arranging a pipeline to connect the bearing structure with the detection part, and arranging a pipeline or a container connected with the outside by a discharge pipe at the lower part of the detection part;
Connecting the control module with the photoelectric sensor in the detection part, connecting the control module with external equipment to debug the equipment, testing the liquid which is delivered by the oil delivery mechanism for multiple times as a sample during debugging, testing the liquid with different standard quantities to obtain corresponding data to form a waveform chart, recording the number of times of the oil which passes through the oil drop port for the input definite quantity of oil during debugging, determining the quantity of single oil drop according to the total flow and the number of times of oil drop, and calculating the average value for multiple times;
After debugging is finished, the connection parts of the oil conveying mechanisms provided with the detection parts are subjected to remote oil leakage monitoring through a background server, and a first threshold value and a second threshold value are set;
when the change starts in the waveform diagram transmitted by the corresponding control module, if the intermittent waveform diagram appears, calculating according to the number of the waveform which appears the change, if the number of the waveform which appears the change exceeds a first threshold, judging that oil leakage occurs, and calculating the oil leakage in unit time according to the frequency of the number of the waveform which appears the change and the quantity of single oil drops obtained during debugging;
If the time of the waveform which keeps the light path blocked after the change exceeds the second threshold value, the oil leakage is judged to occur and the oil leakage exceeds the warning value.
The beneficial effects of the invention are as follows:
(1) According to the invention, through arranging the oil drop and limiting the size of the opening of the oil drop, quantitative liquid drops can be formed in the detection part no matter how much the leakage quantity is, so that the monitoring range is increased, the accuracy is higher, meanwhile, the quantity and the frequency of the liquid drops are detected through the arranged simple photoelectric sensor, the leakage condition and the leakage quantity can be analyzed through debugging and data simulation, and meanwhile, the misjudgment condition caused by other liquid passing through the system can be eliminated;
(2) The invention also can form stable and continuous liquid column in the detection part through the second oil discharge port when the leakage amount is large, thereby forming continuous light path blocking of the photoelectric sensor, avoiding accumulation after the leakage amount exceeds the maximum range of forming liquid drops, and avoiding the phenomenon that the severity of the whole equipment cannot be confirmed only by the existing liquid drops due to leakage of the oil leakage from other positions after accumulation.
Drawings
FIG. 1 is an assembled elevation view of an entire oil leakage quantitative monitoring apparatus in accordance with an embodiment of the present invention;
FIG. 2 is an assembled top view of the entire oil leakage quantitative monitoring apparatus in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention taken along section line A-A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of the present invention taken along section line B-B in FIG. 2;
FIG. 5 is an assembled bottom view of the entire oil leakage quantitative monitoring apparatus in an embodiment of the present invention;
FIG. 6 is an isometric view of an assembled oil leak quantitative monitoring apparatus in accordance with an embodiment of the present invention;
FIG. 7 is an exploded plan view of the whole oil leakage quantitative monitoring device in an embodiment of the present invention after being disassembled;
FIG. 8 is an isometric view of an explosion after the entire oil leakage quantitative monitoring device is disassembled in an embodiment of the invention;
fig. 9 is an isometric view of a single cap in an example embodiment of the invention.
In the figure: 1-feeding part, 101-feeding inner pipe, 102-oil dropping part, 103-feeding port, 2-detecting part, 3-discharging part, 301-discharging inner pipe, 302-discharging port, 4-cable port, 5-top cover, 6-bottom cover, 7-first oil discharging port, 8-cable fixing seat, 9-second oil discharging port, 10-oil dropping port, 11-detecting installation position and 12-third oil discharging port.
Detailed Description
The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Examples:
The embodiment discloses a quantitative monitoring system for oil leakage, which is used for monitoring oil leakage on an oil transportation pipeline in real time, especially for some connecting gaps, for example, between a crude oil booster pump sealing ring and an oil drainage guide pipe, the device is generally arranged indoors or in a pump station, has independent power supply, and can be directly arranged at the lower part for detection
The monitoring system is arranged to collect leaked oil liquid, and the principle that the oil liquid automatically falls downwards under the action of gravity is utilized to form single equivalent liquid drops to detect, and the flow of the liquid drops is calculated through the frequency of the liquid drops, so that more accurate and larger-range monitoring is realized.
Specifically, the monitoring system includes a detection portion 2, and a pipeline connected with the detection portion 2, where the pipeline is arranged in a vertical direction, and is provided with a structure for receiving oil leakage on the upper portion, generally a disk or funnel structure, and can correspond to the connection portion and form a large-area receiving surface, so that leaked oil is led into the detection portion 2 through the pipeline, then the lower portion of the detection portion 2 is provided with a pipeline for discharging the detected oil, and the discharged oil can be directly connected into a discharge pipeline, or the discharged oil can be collected by a separate collection container.
The system also comprises a control module, wherein the control module is provided with a PCB with a singlechip and a power module, and can be used for setting an independent battery according to requirements for guaranteeing. The control module is also provided with a signal receiving and transmitting module which can perform data interaction with a remote background server in a wired and/or wireless mode, and the background server can realize signal interaction on a plurality of control modules in a certain area and acquire data for analysis and monitoring.
The detection part 2 has a certain volume and is provided with a feeding part 1 and a discharging part 3; the detection part 2 is internally provided with an oil drop port 10 facing the discharge part 3, the diameter range of the oil drop port 10 is 3-6mm, and leaked oil enters the detection part 2 from the feed part 1 under the action of gravity and is formed into liquid drops through the oil drop port 10 to be discharged to the discharge part 3; the detection part 2 is also internally provided with a photoelectric sensor connected with a control module through a wire harness, the control module supplies power to the photoelectric sensor and transmits data, the photoelectric sensor is controlled to emit a corresponding light path, the light path passes through the lower part of the oil drop port 10 and is blocked when the liquid drops drop into the discharge part 3, and a waveform chart is formed through the blocking times and time for analysis and monitoring.
A photoelectric sensor is a device for emitting and receiving an optical path, and generally includes two implementations, namely, a transmitter and a receiver, where two components are disposed opposite to each other, and the formed optical path can be blocked by formed oil drops. Another way is a module with both transmitting and receiving ends, a reflecting part is arranged on the other side, the light path can be formed by reflection, and the light path has at least two beams, and the blocking width can be detected.
Further, referring to fig. 1 to 9, the feeding portion 1 includes a feeding inner tube 101 and an oil dripping portion 102 which are vertically communicated and are located in the detecting portion 2, the feeding inner tube 101 has an end portion penetrating from the top of the detecting portion 2, a feeding port 103 is provided on the penetrated end portion, and the oil dripping port 10 is provided at the lower end portion of the oil dripping portion 102.
The detection part 2 is of a tubular structure with openings at two sides, a top cover 5 is detachably connected with the opening at one side of the detection part 2, and the feeding part 1 is arranged on the top cover 5; the other side opening of the detection part 2 is detachably connected with a bottom cover 6, and the discharging part 3 is arranged on the bottom cover 6; the axes of the feeding part 1 and the discharging part 3 are collinear when the top cover 5 and the bottom cover 6 are arranged on the detecting part 2.
The oil dropping part 102 is of a tubular structure, and the oil dropping part 102 is inserted into the discharging inner pipe 301 and is attached to the inner wall of the discharging inner pipe 301; the oil drip 102 has a tapered head at one end of insertion, the oil drip 10 is disposed at the center of a circular plane provided at the top of the tapered head, and the edge of the oil drip 10 does not exceed the edge of the circular plane; a plurality of second oil discharge ports 9 are arranged on the conical surface of the conical head part around the equal central angle of the axis of the oil dropping part 102.
Referring to fig. 3 and 9, the interval between the lower edge of the second oil discharge port 9 and the upper opening of the oil drop port 10 is 3-6mm, and the minimum width of the formed liquid drop is 3mm because the opening of the oil drop port 10 is at least 3mm. According to the defined size, it can be ensured that the oil entering from the feed port 103 can stably form droplets instead of falling down the liquid column when falling into the oil drop port 10. Meanwhile, the monitoring system in this embodiment is mainly used for providing a more accurate monitoring effect for some small leakage, if the leakage exceeds the range, the oil drop 10 can form liquid drops, but the speed of the liquid drops reaches the maximum value, and the excessive oil can directly fall out from the four second oil discharge ports 9 at the upper part into the discharging inner pipe 301.
The discharging part 3 comprises a discharging inner pipe 301 positioned in the detecting part 2, one end of the discharging inner pipe 301 penetrates out of the detecting part 2, and a discharging hole 302 is formed in the penetrated end part; the discharging inner tube 301 has an opening in the detecting portion 2, from which the oil dropping portion 102 penetrates; the discharging inner tube 301 is provided with a through hole which is positioned at the lower side of the oil dropping part 102 and is vertical to the axial direction, and the optical path of the photoelectric sensor passes through the through hole.
Referring to fig. 3, a cross-sectional view shows an internal structure in which a photoelectric sensor, not shown, includes two columnar emitters and receivers, and the through hole is a detection mounting position 11 with two collinear axes arranged on an inner discharging tube 301, and the emitter and receiver ends are arranged in the detection mounting position 11 in opposite directions. The mounting locations shown in the figures are two holes with collinear axes and each narrow to form a head when approaching the interior of the outfeed tube 301. The transmitter and the receiver have the same external dimensions and are connected with external equipment through cables, and the ends of the transmitter and the receiver are inserted into the corresponding heads to realize fixation. In some embodiments, the mounting location may be provided with internal threads, while the exterior of the transmitter and receiver are provided with external threads, which enable removable fixation by way of a threaded fit.
The surface of the feeding inner pipe 101 in the detecting part 2 is provided with a plurality of first oil discharge ports 7, and the surface of the discharging inner pipe 301 in the detecting part 2 is also provided with a plurality of third oil discharge ports 12.
The inside cable fixing base 8 that is used for fixed and separated time that is equipped with of detection portion 2, detection portion 2 outside still is equipped with cable mouth 4, and outside pencil gets into detection portion 2 inside from cable mouth 4 and is fixed through cable fixing base 8, divides two independent cables to connect transmitter and receiver respectively from cable fixing base 8. The embodiment also provides a monitoring method, which adopts the quantitative monitoring system for oil leakage to detect oil leakage at the connecting part of the oil conveying mechanism, and specifically comprises the following steps:
Firstly, arranging a detection part 2 and a control module at the lower part of a connecting part of a corresponding oil conveying mechanism, arranging a bearing structure fixed on the connecting part at the lower part of the connecting part, arranging a pipeline to connect the bearing structure with the detection part 2, and arranging a pipeline or a container connected with the outside by a discharge pipe at the lower part of the detection part 2;
The control module is connected with the photoelectric sensor in the detection part 2, equipment debugging is carried out through the external equipment connection control module after the external power supply is connected, the through liquid conveyed by the oil conveying mechanism is used as a sample for testing in the debugging process, a plurality of groups of liquid tests with different standard quantities are used for obtaining corresponding data to form a waveform chart, the number of times of oil drops passing through the oil drop port 10 is recorded for the input definite quantity of oil in the debugging process, the quantity of single oil drops is determined according to the total flow and the number of times of the oil drops, and the average value is calculated for a plurality of times; in the case of a partial waveform chart presented in the debugging process on a computer, the waveform chart is continuously changed along with the movement of an abscissa on a coordinate axis formed in a table, wherein the ordinate represents the change of a signal, namely 1 is represented after blocking, 0 is represented when unblocking, and the abscissa is time, and the time is counted from the oil dripping test.
After debugging is finished, the connection parts of the oil conveying mechanisms provided with the detection parts 2 are subjected to remote oil leakage monitoring through a background server, and a first threshold value and a second threshold value are set;
when the change starts in the waveform diagram transmitted by the corresponding control module, if the intermittent waveform diagram appears, calculating according to the number of the waveform which appears the change, if the number of the waveform which appears the change exceeds a first threshold, judging that oil leakage occurs, and calculating the oil leakage in unit time according to the frequency of the number of the waveform which appears the change and the quantity of single oil drops obtained during debugging;
If the time of the waveform which keeps the light path blocked after the change exceeds the second threshold value, the oil leakage is judged to occur and the oil leakage exceeds the warning value.
The invention is not limited to the alternative embodiments described above, but any person may derive other various forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.
Claims (10)
1. The utility model provides an oil leak ration monitoring system for accept the fluid that oil conveying mechanism's connecting portion leaked and monitor its characterized in that through forming the liquid drop: the system comprises a detection part (2) which is connected with an oil conveying mechanism connecting part through a pipeline and has a certain volume, and a control module which is connected with the detection part (2) through a wire harness, wherein the control module performs data interaction with a remote background server through a network;
the detection part (2) is provided with a feeding part (1) and a discharging part (3);
The detection part (2) is internally provided with an oil drop port (10) facing the discharge part (3), the diameter range of the oil drop port (10) is 3-6mm, and leaked oil enters the detection part (2) from the feed part (1) under the action of gravity and is formed into liquid drops through the oil drop port (10) to be discharged to the discharge part (3);
the detection part (2) is also internally provided with a photoelectric sensor, and the optical path of the photoelectric sensor passes through the lower part of the oil drop port (10) and is blocked when the liquid drop drops into the discharge part (3).
2. The oil leakage quantitative monitoring system according to claim 1, wherein: the feeding part (1) comprises a feeding inner pipe (101) and an oil dripping part (102) which are vertically communicated and are positioned in the detecting part (2), the feeding inner pipe (101) is provided with an end part penetrating out from the top of the detecting part (2), the penetrating end part is provided with a feeding hole (103), and the oil dripping port (10) is arranged at the lower end part of the oil dripping part (102).
3. The oil leakage quantitative monitoring system according to claim 2, wherein: the discharging part (3) comprises a discharging inner pipe (301) positioned in the detecting part (2), one end of the discharging inner pipe (301) penetrates out of the detecting part (2) and a discharging hole (302) is formed in the penetrating end part;
The discharging inner pipe (301) is provided with an opening in the detecting part (2), and the oil dropping part (102) penetrates through the opening;
The discharging inner tube (301) is provided with a through hole which is positioned at the lower side of the oil dropping part (102) and is vertical to the axial direction, and the optical path of the photoelectric sensor passes through the through hole.
4. A quantitative monitoring system for oil leakage according to claim 3, wherein: the oil dropping part (102) is of a tubular structure, and the oil dropping part (102) is inserted into the discharging inner pipe (301) and is attached to the inner wall of the discharging inner pipe (301);
the oil dropping part (102) is provided with a conical head part at one inserted end, the oil dropping port (10) is arranged at the center of a round plane arranged at the top of the conical head part, and the edge of the oil dropping port (10) does not exceed the edge of the round plane;
a plurality of second oil discharge ports (9) are arranged on the conical surface of the conical head part around the equal central angles of the axis of the oil dropping part (102).
5. A quantitative monitoring system for oil leakage according to claim 3, wherein: the surface of the feeding inner pipe (101) positioned in the detection part (2) is provided with a plurality of first oil discharge ports (7), and the surface of the discharging inner pipe (301) positioned in the detection part (2) is also provided with a plurality of third oil discharge ports (12).
6. A quantitative monitoring system for oil leakage according to claim 4 or 5, characterized in that: the detection part (2) is of a tubular structure with openings at two sides, a top cover (5) is detachably connected with the opening at one side of the detection part (2), and the feeding part (1) is arranged on the top cover (5); the opening at the other side of the detection part (2) is detachably connected with a bottom cover (6), and the discharging part (3) is arranged on the bottom cover (6);
when the top cover (5) and the bottom cover (6) are arranged on the detection part (2), the axes of the feeding part (1) and the discharging part (3) are collinear.
7. A quantitative monitoring system for oil leakage according to claim 3, wherein: the photoelectric sensor comprises two columnar emitters and receivers, the through holes are detection installation positions (11) with two collinear axes arranged on the discharging inner tube (301), and the ends of the emitters and the receivers are oppositely arranged in the detection installation positions (11).
8. The oil leakage quantitative monitoring system according to claim 7, wherein: the cable fixing seat (8) used for fixing and branching is arranged in the detection portion (2), the cable port (4) is further formed in the outer portion of the detection portion (2), an external wire harness enters the detection portion (2) from the cable port (4) and is fixed through the cable fixing seat (8), and two independent cables are separated from the cable fixing seat (8) and are respectively connected with the transmitter and the receiver.
9. The oil leakage quantitative monitoring system according to claim 6, wherein: the top cover (5) and the bottom cover (6) are in threaded fit with the detection part (2), and a sealing ring is arranged at the joint for sealing.
10. A quantitative monitoring method for oil leakage is characterized in that: the oil leakage detection is carried out on the connecting part of the oil conveying mechanism by adopting the oil leakage quantitative monitoring system of claim 6, and the specific steps are as follows:
Firstly, arranging a detection part (2) and a control module at the lower part of a connecting part of a corresponding oil conveying mechanism, arranging a bearing structure fixed on the connecting part at the lower part of the connecting part, arranging a pipeline to connect the bearing structure with the detection part (2), and arranging a pipeline or a container connected with the outside by a discharge pipe at the lower part of the detection part (2);
The control module is connected with the photoelectric sensor in the detection part (2), equipment debugging is carried out through the external equipment connection control module after an external power supply is connected, the liquid which is supposed to be communicated and is conveyed by the oil conveying mechanism is used as a sample for testing in the debugging process, a plurality of groups of liquid tests with different standard quantities are used for obtaining corresponding data to form a waveform chart, the number of oil drops which pass through the oil drop port (10) is recorded for the input oil with a determined quantity in the debugging process, the quantity of single oil drops is determined according to the total flow and the number of the oil drops, and the average value is calculated for a plurality of times;
after debugging is finished, the connection parts of the oil conveying mechanisms provided with the detection parts (2) are subjected to remote oil leakage monitoring through a background server, and a first threshold value and a second threshold value are set;
when the change starts in the waveform diagram transmitted by the corresponding control module, if the intermittent waveform diagram appears, calculating according to the number of the waveform which appears the change, if the number of the waveform which appears the change exceeds a first threshold, judging that oil leakage occurs, and calculating the oil leakage in unit time according to the frequency of the number of the waveform which appears the change and the quantity of single oil drops obtained during debugging;
If the time of the waveform which keeps the light path blocked after the change exceeds the second threshold value, the oil leakage is judged to occur and the oil leakage exceeds the warning value.
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| CN118090082B (en) | 2024-08-13 |
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