阅读说明：本技术 炼化生产泄漏监测方法、装置、系统及红外成像装置 (Refinery production leakage monitoring method, device and system and infrared imaging device ) 是由 朱亮 肖安山 贾润中 李明骏 李波 朱胜杰 丁德武 高少华 于 2020-05-25 设计创作，主要内容包括：本发明实施方式提供一种炼化生产泄漏监测方法、装置、系统及红外成像装置,属于泄漏监测技术领域。方法包括：读取控制角度数据,控制所述红外成像装置以所述控制角度数据转动；判断所述控制角度数据对应的泄漏目标区域类型；依据所述泄漏目标区域类型,控制所述红外成像装置以对应的红外波段采集所述泄漏目标区域的红外图像；接收所述红外图像,依据所述红外图像判断所述泄漏目标区域是否发生泄漏。本发明通过控制红外成像装置以预设角度转动,针对不同泄漏目标区域采用不同的红外波段进行图像采集,从而实现在线、实时巡回监测,同时,能排除监测环境对红外成像的干扰,具有响应快、效率高、抗现场干扰能力强的特点。(The embodiment of the invention provides a refinery production leakage monitoring method, a device and a system and an infrared imaging device, and belongs to the technical field of leakage monitoring. The method comprises the following steps: reading control angle data and controlling the infrared imaging device to rotate according to the control angle data; judging the type of a leakage target area corresponding to the control angle data; controlling the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area; and receiving the infrared image, and judging whether the leakage target area leaks or not according to the infrared image. The infrared imaging device is controlled to rotate at a preset angle, and different infrared wave bands are adopted for image acquisition aiming at different leakage target areas, so that online and real-time itinerant monitoring is realized, meanwhile, the interference of a monitoring environment on infrared imaging can be eliminated, and the infrared imaging device has the characteristics of quick response, high efficiency and strong on-site interference resistance.)

1. A refinery production leakage monitoring method is characterized by comprising the following steps:

reading control angle data and controlling the infrared imaging device to rotate according to the control angle data;

judging the type of a leakage target area corresponding to the control angle data;

controlling the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and receiving the infrared image, and judging whether the leakage target area leaks or not according to the infrared image.

2. An refinery production leakage monitoring method according to claim 1, wherein the control angle data belongs to a preset data set of cyclic paths, and the reading of the control angle data comprises:

sequentially reading the control angle data in the itinerant path data set, judging whether the currently read control angle data is the last control angle data in the itinerant path data set, if so, reading the first control angle data in the itinerant path data set, and repeating the process; if not, reading the next control angle data.

3. The refinery production leakage monitoring method of claim 1, wherein the control angle data comprises a leakage target area identifier, and the determining the type of the leakage target area corresponding to the control angle data comprises:

and acquiring the leakage target area identification, and matching the leakage target area type corresponding to the leakage target area identification from a preset leakage target area type table.

4. The refinery production leakage monitoring method of claim 1, wherein the leakage target region types include alkane medium leakage and alkene medium leakage, and the controlling the infrared imaging device to acquire the infrared image of the leakage target region in the corresponding infrared band according to the leakage target region types comprises:

when the type of the leakage target area is alkane medium leakage, controlling the infrared imaging device to acquire a first infrared image in a first infrared band and then acquire a second infrared image in a second infrared band;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

5. An refinery production leakage monitoring method according to claim 4, wherein the receiving the infrared image and determining whether the leakage target area has leaked according to the infrared image comprises:

receiving the first infrared image and the second infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

6. A refinery production leakage monitoring device, comprising:

the first control module is configured to read control angle data and control the infrared imaging device to rotate according to the control angle data;

the first judging module is configured to judge the type of the leakage target area corresponding to the control angle data;

the second control module is configured to control the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and the second judgment module is configured to receive the infrared image and judge whether the leakage target area leaks or not according to the infrared image.

7. An refinery production leakage monitoring device according to claim 6, wherein the control angle data belongs to a preset data set of itinerant paths, and the first control module comprises:

the reading unit is configured to sequentially read the control angle data in the itinerant path data set, judge whether the currently read control angle data is the last control angle data in the itinerant path data set, if so, read the first control angle data in the itinerant path data set, and repeat the above process; if not, reading the next control angle data.

8. An infrared imaging based refinery production leakage monitoring device according to claim 6, wherein the control angle data includes leakage target area identification, and the first judgment module comprises:

and the first judgment unit is configured to acquire the leakage target area identifier and match the leakage target area type corresponding to the leakage target area identifier from a preset leakage target area type table.

9. An infrared imaging based refinery production leak monitoring apparatus according to claim 6, wherein the leak target zone types include alkane medium leaks and alkene medium leaks, and the second control module comprises:

the control unit is configured to control the infrared imaging device to acquire a first infrared image in a first infrared band and then acquire a second infrared image in a second infrared band when the leakage target area type is alkane medium leakage;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

10. An infrared imaging based refinery production leakage monitoring device according to claim 9, wherein the second decision module comprises:

a second judging unit configured to receive the first infrared image and the second infrared image, and judge that the leakage target region leaks when it is judged that there is leakage according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

11. A terminal device comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor implements the infrared imaging based refinery production leakage monitoring method according to any one of claims 1-5 when executing the computer program.

12. An infrared imaging apparatus, comprising:

the device comprises an infrared imaging mechanism and a cloud platform, wherein the infrared imaging mechanism is fixedly connected to the cloud platform, and the cloud platform is used for receiving a control instruction to control the infrared imaging mechanism to rotate at a preset angle;

the infrared imaging mechanism comprises a gas imaging infrared machine core, an optical lens and a light filtering part; the optical lens is used for collecting infrared radiation, the optical filter part is used for filtering the collected infrared radiation, and the gas imaging infrared core is used for generating an infrared image according to the filtered infrared radiation;

the optical filtering part is arranged between the optical lens and the gas imaging infrared machine core, the optical filtering part comprises a first optical filter, a second optical filter, a third optical filter, a bracket and a control module, the first optical filter, the second optical filter and the third optical filter are fixedly arranged on the bracket, and the control module is used for controlling the bracket to rotate according to a received control instruction so as to enable the first optical filter, the second optical filter or the third optical filter to be arranged between the optical lens and the gas imaging infrared machine core;

the first optical filter has a wave band of 3.1-3.4 μm, the second optical filter has a wave band of 7.2-7.8 μm, and the third optical filter has a wave band of 10.5-10.8 μm.

13. An infrared imaging based refinery production leakage monitoring system, comprising:

an infrared imaging based refinery process leak monitoring device according to any one of claims 6-10;

at least one infrared imaging device of claim 12;

the infrared imaging device is used for collecting infrared images of a leakage target area, and the monitoring device is used for controlling the infrared imaging device to rotate, receiving the infrared images collected by the infrared imaging device and judging whether the leakage target area leaks or not according to the received infrared images.

Technical Field

The invention relates to the technical field of leakage monitoring, in particular to a refinery production leakage monitoring method, a refinery production leakage monitoring device, a refinery production leakage monitoring system and an infrared imaging device.

Background

In the refining production process, accidents caused by leakage of valves, pipelines and equipment occur due to aging, corrosion and vibration of the equipment, even misoperation and other reasons, at present, production enterprises mainly rely on a method for installing a combustible toxic gas alarm to monitor leakage, and carry out periodic detection on potential leakage risk points of a production device by developing leakage detection and repair work, the efficiency of leakage detection is low only by means of periodic detection, and meanwhile, the monitoring response of the traditional gas alarm is slow. The patent '201810229704.4' discloses a monitoring system for remotely monitoring leakage and emission of environmental hazardous gases in a non-contact manner, and the method only adopts a single infrared absorption spectrum to carry out leakage monitoring, has low detection efficiency, cannot visually present a leakage result, is difficult to eliminate the interference of monitoring environmental background radiation on detection, cannot image, and influences the monitoring accuracy and the result presentation effect.

Disclosure of Invention

The embodiment of the invention aims to collect infrared images by adopting different infrared bands for leakage monitoring aiming at different types of leakage target areas so as to at least solve the problems that the existing leakage detection method based on periodicity is low in leakage efficiency, a gas alarm is slow in monitoring response and cannot eliminate interference of a monitoring environment on infrared imaging.

In order to achieve the above object, in a first aspect of the present invention, there is provided a refinery process leakage monitoring method comprising:

reading control angle data and controlling the infrared imaging device to rotate according to the control angle data;

judging the type of a leakage target area corresponding to the control angle data;

controlling the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and receiving the infrared image, and judging whether the leakage target area leaks or not according to the infrared image.

Optionally, the control angle data belongs to a preset data set of the tour path, and the reading the control angle data includes:

sequentially reading the control angle data in the itinerant path data set, judging whether the currently read control angle data is the last control angle data in the itinerant path data set, if so, reading the first control angle data in the itinerant path data set, and repeating the process; if not, reading the next control angle data.

Optionally, the determining, by the control angle data, a type of the target leakage area corresponding to the control angle data includes:

and acquiring the leakage target area identification, and matching the leakage target area type corresponding to the leakage target area identification from a preset leakage target area type table.

Optionally, the leakage target area type includes alkane medium leakage and alkene medium leakage, and the controlling the infrared imaging device to acquire the infrared image of the leakage target area in the corresponding infrared band according to the leakage target area type includes:

when the type of the leakage target area is alkane medium leakage, controlling the infrared imaging device to acquire a first infrared image in a first infrared band and then acquire a second infrared image in a second infrared band;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

Optionally, the receiving the infrared image, and determining whether the leakage target area leaks according to the infrared image includes:

receiving the first infrared image and the second infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

In a second aspect of the present invention, there is provided an refinery process leak monitoring apparatus comprising:

the first control module is configured to read control angle data and control the infrared imaging device to rotate according to the control angle data;

the first judging module is configured to judge the type of the leakage target area corresponding to the control angle data;

the second control module is configured to control the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and the second judgment module is configured to receive the infrared image and judge whether the leakage target area leaks or not according to the infrared image.

Optionally, the control angle data belongs to a preset data set of a tour route, and the first control module includes:

the reading unit is configured to sequentially read the control angle data in the itinerant path data set, judge whether the currently read control angle data is the last control angle data in the itinerant path data set, if so, read the first control angle data in the itinerant path data set, and repeat the above process; if not, reading the next control angle data.

Optionally, the control angle data includes a leakage target area identifier, and the first determining module includes:

and the first judgment unit is configured to acquire the leakage target area identifier and match the leakage target area type corresponding to the leakage target area identifier from a preset leakage target area type table.

Optionally, the leakage target region type includes an alkane medium leakage and an alkene medium leakage, and the second control module includes:

the control unit is configured to control the infrared imaging device to acquire a first infrared image in a first infrared band and then acquire a second infrared image in a second infrared band when the leakage target area type is alkane medium leakage;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

Optionally, the second determining module includes:

a second judging unit configured to receive the first infrared image and the second infrared image, and judge that the leakage target region leaks when it is judged that there is leakage according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

In a third aspect of the present invention, there is provided a terminal device, comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program to implement the method for monitoring leakage of refinery production based on infrared imaging.

In a fourth aspect of the present invention, there is provided an infrared imaging apparatus comprising:

the device comprises an infrared imaging mechanism and a cloud platform, wherein the infrared imaging mechanism is fixedly connected to the cloud platform, and the cloud platform is used for receiving a control instruction to control the infrared imaging mechanism to rotate at a preset angle;

the infrared imaging mechanism comprises a gas imaging infrared core, an optical lens and a light filtering part, wherein the optical lens is used for collecting infrared radiation, the light filtering part is used for filtering the collected infrared radiation, and the gas imaging infrared core is used for generating an infrared image according to the filtered infrared radiation;

the optical filtering part is arranged between the optical lens and the gas imaging infrared machine core, the optical filtering part comprises a first optical filter, a second optical filter, a third optical filter, a bracket and a control module, the first optical filter, the second optical filter and the third optical filter are fixedly arranged on the bracket, and the control module is used for controlling the bracket to rotate according to a received control instruction so as to enable the first optical filter, the second optical filter or the third optical filter to be arranged between the optical lens and the gas imaging infrared machine core;

the first optical filter has a wave band of 3.1-3.4 μm, the second optical filter has a wave band of 7.2-7.8 μm, and the third optical filter has a wave band of 10.5-10.8 μm.

In a fifth aspect of the present invention, there is provided an infrared imaging-based refinery production leakage monitoring system, comprising:

the refinery production leakage monitoring device based on infrared imaging;

at least one of the above-described infrared imaging devices;

the infrared imaging device is used for collecting infrared images of a leakage target area, and the monitoring device is used for controlling the infrared imaging device to rotate, receiving the infrared images collected by the infrared imaging device and judging whether the leakage target area leaks or not according to the received infrared images.

According to the technical scheme, the infrared imaging device is controlled to rotate at the preset angle, each rotation corresponds to one leakage target area, and different infrared wave bands are adopted for acquiring infrared images aiming at different leakage target areas, so that online and real-time itinerant monitoring is realized, meanwhile, the interference of a monitoring environment on infrared imaging can be eliminated, the technical problems that the prior art is slow in response, low in efficiency and easy to influence by various factors on a leakage medium imaging result during leakage detection in refining production are solved, and the infrared imaging device has the characteristics of being fast in response, high in efficiency and strong in on-site interference resistance.

Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

FIG. 1 is a flow chart of a method for monitoring leakage in refinery processes as provided in example 1 of the present invention;

FIG. 2 is a schematic block diagram of a refinery process leakage monitoring device provided in embodiment 1 of the present invention;

fig. 3 is a schematic diagram of a terminal device provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of an infrared imaging apparatus provided in embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of the filtering provided in example 2 of the present invention;

fig. 6 is a schematic view of an infrared roving monitoring field of view provided in embodiment 2 of the present invention.

Description of the reference numerals

The method comprises the following steps of 1-gas imaging infrared movement, 2-optical lens, 3-explosion-proof shell, 4-pitching control motor, 5-horizontal tracking mechanism, 6-high point installation connecting piece, 7-power interface, 8-control signal interface, 9-data interface, 101-first optical filter, 102-second optical filter, 103-third optical filter, 201-first control module, 202-first judgment module, 203-second control module, 204-second judgment module, 50-terminal equipment, 500-processor, 501-memory and 502-computer program.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the embodiments of the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, top, and bottom" is generally used with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.

Example 1

As shown in fig. 1, in a first aspect of this embodiment, there is provided a refinery process leakage monitoring method, including:

s100, reading control angle data, and controlling the infrared imaging device to rotate according to the control angle data, wherein the control angle data comprises a pitch angle and a rotation angle of the infrared imaging device;

s200, judging the type of a leakage target area corresponding to the control angle data;

s300, controlling an infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

s400, receiving the infrared image, and judging whether the leakage target area leaks or not according to the infrared image.

So, rotate with predetermineeing the angle through controlling infrared imaging device, it is regional to rotate corresponding a leakage target at every turn, adopt different infrared wave band to carry out infrared image acquisition to different leakage target regions, thereby realize online, real-time touring monitoring, and simultaneously, can get rid of the monitoring environment to infrared imaging's interference, it is slow to have solved the prior art response when refinery production leakage detects, inefficiency, the technical problem that the medium imaging result of leaking is easily influenced by multiple factor, have the characteristics that the response is fast, high efficiency, anti site interference ability is strong.

Specifically, the refinery production leakage medium comprises a gas medium and a liquid medium, particularly a gas medium with fingerprint absorption characteristics in an infrared transmission spectrum band, and a liquid medium with temperature difference with the surrounding environment after leakage, such as alkane, olefin, benzene and the like, so that the refinery production leakage medium can be effectively monitored by adopting infrared imaging. According to the distribution of the refining production process, the site topography and the environment, the installation high points of the infrared imaging devices are selected and installed, and the cross points of a plurality of device blocks in a refining production device area are used as the installation points of the infrared imaging devices, wherein the refining production device area comprises a device area tank area. The installation height of the infrared imaging device is not less than 1.5 times of the height of the highest device, the center of a selected tank area of the refinery production storage tank area is the installation point of the infrared imaging on-line monitoring device, and the installation height is not less than 2 times of the height of the tank area. In order to eliminate the interference influence of the monitoring environment on the monitoring, in this embodiment, an interference elimination mode is established according to the high-point installation view field condition of the infrared imaging device, the influence of factors such as water vapor, high-temperature equipment, tree disturbance and the like is eliminated, and a leakage detection sensitive area is preset, and the leakage detection sensitive area only contains equipment, or equipment and the sky, or equipment and the ground, and cannot contain substances such as trees, high-temperature equipment and the like. And determining a leakage target area by combining the characteristics of the process flow of the joint production process, wherein the leakage medium of the leakage target area is different according to the different production processes, and a leakage monitoring working mode is defined according to the characteristics of the leakage medium of the leakage target area, for example, the leakage target area for alkane medium leakage is monitored by using 3.1-3.4 μm waveband infrared imaging, and then is monitored by using 7.2-7.8 μm waveband infrared imaging, the leakage of olefin gas medium is monitored by using 10.5-10.8 μm waveband infrared imaging, and the leakage of liquid medium can be monitored by using any one of three wavebands.

After a leakage target area is determined, the online monitoring and debugging of the leakage of the current view field are completed, the tripod head is controlled to be switched to the next leakage monitoring view field, and the angle between the normal of the tele wide-angle lens 2 and the vertical direction cannot exceed 90 degrees. Debugging of all high-point monitoring view fields and medium leakage definition are completed according to the process, a leakage target area under each view field is locked, namely, control angle data of an infrared imaging device of each leakage monitoring view field are recorded and stored, the control angle data comprise a pitching angle and a rotating angle of a holder driving the infrared imaging device to move, meanwhile, the current control angle data are associated with the leakage target area of the current view field, meanwhile, at least one group of infrared bands adopted by the current monitoring view field are determined according to the type of the leakage medium of the leakage target area of the current view field, the infrared band data are associated with the control angle data, so that the infrared bands of the infrared imaging device are adjusted according to the control angle data, and infrared images of the leakage medium can be acquired more accurately aiming at different leakage target areas. In this embodiment, each infrared imaging device corresponds to a plurality of leakage target areas, that is, the infrared imaging device needs to adjust a view field to monitor each leakage target area, the control angle data of the infrared imaging device is sequentially stored according to the monitoring sequence of the leakage target areas, and the control angle data of all current infrared imaging devices form a tour path data set, so that the infrared imaging device can be controlled to acquire images according to a preset leakage target area monitoring sequence according to the tour path data set, wherein the preset leakage target area monitoring sequence is set according to the flow direction of a smelting production medium to reduce the influence of cross interference. After debugging under all fields of view is completed, an all-weather leakage infrared imaging online monitoring working mode can be entered, infrared images of leakage target areas in all fields of view are collected in a circulating mode aiming at each monitoring sensitive area, whether medium leakage exists or not is judged through image processing according to the received infrared images, and therefore medium leakage in refining production is monitored rapidly, efficiently and accurately, and safety environment risks caused by leakage are found timely.

Because the leakage target area needs to be monitored all weather, the control angle data is read, and the method comprises the following steps:

sequentially reading the control angle data in the data set of the itinerant path, judging whether the currently read control angle data is the last control angle data in the data set of the itinerant path, if so, reading the first control angle data in the data set of the itinerant path, and repeating the process; if not, reading the next control angle data. The method comprises the steps that control angle data are read in sequence according to a storage sequence of the control angle data, so that a cradle head is controlled to drive an infrared imaging device to act according to preset control angle data, the infrared imaging device is aligned to a leakage target area according to a preset monitoring sequence, when the last control angle data are read, the first control angle data are read again, and the process is circulated so as to realize all-weather itinerant monitoring.

In order to improve the monitoring precision, different infrared bands are needed to acquire images aiming at different leakage target area types, so that the control angle data is needed to be associated with the leakage target area type of the current view field, therefore, the control angle data also comprises a leakage target area identifier, and the type of the leakage target area corresponding to the control angle data is judged, including:

and acquiring a leakage target area identifier, and matching a leakage target area type corresponding to the leakage target area identifier from a preset leakage target area type table. And pre-establishing an identification list of different leakage target area types, wherein each identification corresponds to one leakage target area type, and matching the identification in the control angle data with the identification in the identification list, so that the leakage target area type of the current field can be judged through data mapping.

Because different infrared bands are needed to acquire images according to different leakage target area types, the leakage target area types include alkane medium leakage and alkene medium leakage, therefore, the infrared imaging device of the embodiment includes a plurality of groups of selectable infrared bands, and according to the leakage target area types, the infrared imaging device is controlled to acquire the infrared images of the leakage target area in the corresponding infrared band, including:

when the type of the leakage target area is alkane medium leakage, controlling an infrared imaging device to acquire a first infrared image by using a first infrared band and then acquire a second infrared image by using a second infrared band;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

Because the characteristic spectrum of the alkane medium is distributed in two wave bands of 3.1-3.4 μm and 7.2-7.8 μm, aiming at the target leakage area of the alkane medium, the two wave bands need to be switched to respectively collect infrared images in different wave bands so as to judge whether medium leakage exists or not.

Therefore, receiving the infrared image and judging whether the leakage target area leaks or not according to the infrared image comprises the following steps:

receiving the first infrared image and the second infrared image, and judging that a leakage target area leaks when the leakage is judged to exist according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

Aiming at the alkane medium leakage target area, the medium which is imaged in a certain wave band is not necessarily the medium discharged from the leakage target area, if the medium is imaged in both wave bands, the leakage of the medium in the leakage target area can be judged, and the interference of other substances can be effectively eliminated through switching imaging of the two wave bands, so that whether the medium leaks in the alkane medium leakage target area or not can be accurately judged; and for the olefin medium leakage target area, if imaging is carried out under the wave band of 10.5-10.8 μm, the olefin medium leakage target area can be judged to have medium leakage.

As shown in fig. 2, the present embodiment further provides a refinery production leakage monitoring device, which includes:

a first control module 201 configured to read control angle data, control the infrared imaging device to rotate according to the control angle data, wherein the control angle data includes a pitch angle and a rotation angle of the infrared imaging device;

a first judging module 202 configured to judge a leakage target region type corresponding to the control angle data;

the second control module 203 is configured to control the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and a second judging module 204 configured to receive the infrared image and judge whether the leakage target area leaks according to the infrared image.

Optionally, the control angle data belongs to a preset data set of the itinerant path, and the first control module 201 includes:

the reading unit is configured to sequentially read the control angle data in the itinerant path data set, judge whether the currently read control angle data is the last control angle data in the itinerant path data set, if so, read the first control angle data in the itinerant path data set, and repeat the process; if not, reading the next control angle data.

Optionally, the control angle data includes a leakage target area identifier, and the first determining module 202 includes:

and the first judgment unit is configured to acquire the leakage target area identifier and match the leakage target area type corresponding to the leakage target area identifier from a preset leakage target area type table.

Optionally, the leakage target region type includes alkane medium leakage and alkene medium leakage, and the second control module 203 includes:

the control unit is configured to control the infrared imaging device to acquire a first infrared image in a first infrared band and then acquire a second infrared image in a second infrared band when the leakage target area type is alkane medium leakage;

when the type of the leakage target area is olefin medium leakage, controlling the infrared imaging device to acquire a third infrared image in a third infrared band;

the first infrared band is 3.1-3.4 μm, the second infrared band is 7.2-7.8 μm, and the third infrared band is 10.5-10.8 μm.

Optionally, the second determining module 204 includes:

the second judgment unit is configured to receive the first infrared image and the second infrared image, and judge that the leakage target area leaks when the leakage is judged to exist according to the first infrared image and the second infrared image;

and receiving the third infrared image, and judging that the leakage target area leaks when the leakage is judged to exist according to the third infrared image.

As shown in fig. 3, this embodiment further provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the infrared imaging-based refinery production leakage monitoring method based on the correlation parameters is implemented.

As shown in fig. 4, the terminal device 50 of the present embodiment includes: a processor 500, a memory 501 and a computer program 502 stored in said memory 501 and executable on said processor 500, such as a program for block chain account evaluation. The processor 500, when executing the computer program 502, implements the steps of the above-described method embodiments, for example, the steps associated with the infrared imaging-based refinery production leakage monitoring method shown in fig. 1. Alternatively, the processor 500 implements the functions of the modules/units in the above device embodiments when executing the computer program 502.

Illustratively, the computer program 502 may be partitioned into one or more modules/units that are stored in the memory 501 and executed by the processor 500 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 502 in the terminal device 50. For example, the computer program 502 may be divided into a first control module 201, a first determination module 202, a second control module 203, and a second determination module 204 (modules in a virtual device), and the specific functions of each module are as follows:

a first judging module 202 configured to judge a leakage target region type corresponding to the control angle data;

the second control module 203 is configured to control the infrared imaging device to acquire an infrared image of the leakage target area in a corresponding infrared band according to the type of the leakage target area;

and a second judging module 204 configured to receive the infrared image and judge whether the leakage target area leaks according to the infrared image.

The terminal device 50 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. Terminal device 50 may include, but is not limited to, a processor 500, a memory 501. Those skilled in the art will appreciate that fig. 3 is merely an example of a terminal device 50 and does not constitute a limitation of terminal device 50 and may include more or fewer components than shown, or some components may be combined, or different components, for example, the terminal device may also include input-output devices, network access devices, buses, etc.

The Processor 500 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage 501 may be an internal storage unit of the terminal device 50, such as a hard disk or a memory of the terminal device 50. The memory 501 may also be an external storage device of the terminal device 50, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 50. Further, the memory 501 may also include both an internal storage unit of the terminal device 50 and an external storage device. The memory 501 is used for storing the computer programs and other programs and data required by the terminal device 50. The memory 501 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

Example 2

As shown in fig. 4, the present embodiment provides an infrared imaging apparatus including:

the infrared imaging mechanism is fixedly connected to the holder, and the holder is used for receiving a control command to control the infrared imaging mechanism to rotate at a preset pitch angle and a preset rotation angle;

the infrared imaging mechanism comprises a gas imaging infrared core 1, an optical lens 2 and a filtering part, wherein the optical lens 2 is used for collecting infrared radiation, the filtering part is used for filtering the collected infrared radiation, and the gas imaging infrared core 1 is used for producing an infrared image according to the filtered infrared radiation;

as shown in fig. 5, the filter part is disposed between the optical lens 2 and the gas imaging infrared engine core 1, and includes a first filter 101, a second filter 102, a third filter 103, a bracket and a control module, where the first filter 101, the second filter 102 and the third filter 103 are fixedly disposed on the bracket, and the control module is configured to control the bracket to rotate according to a received control instruction, so that the first filter 101, the second filter 102 or the third filter 103 is disposed between the optical lens 2 and the gas imaging infrared engine core 1;

the wave band of the first filter 101 is 3.1-3.4 μm, the wave band of the second filter 102 is 7.2-7.8 μm, and the wave band of the third filter 103 is 10.5-10.8 μm.

Wherein, the gas imaging infrared core 1 is a special infrared core for refining medium imaging, and the optical lens 2 is a long-focus wide-angle lens. The infrared imaging device also comprises an explosion-proof shell 3, a pitching control motor 4, a horizontal tracking mechanism 5, a high-point mounting connecting piece 6, a power supply interface 7, a control signal interface 8 and a data interface 9, wherein the telephoto wide-angle lens is connected with the infrared machine core special for refining medium imaging, the two are arranged in the explosion-proof shell 3 and only expose the observation surface of the telephoto wide-angle lens, the pitching control motor 4 is positioned at the symmetrical positions at the two sides of the explosion-proof shell 3, one end of the horizontal tracking mechanism 5 is connected with the pitching control motor 4, the other end of the horizontal tracking mechanism is connected with the high-point mounting connecting piece 6 and forms a pan-tilt head together with the pitching control motor 4, the power supply interface 7, the control signal interface 8 and the data interface 9 are arranged at the side surface of the horizontal tracking mechanism 5 and are connected to the infrared machine core special for refining medium imaging and the telephoto wide-angle lens through an internal hollow structure, the infrared machine core special for refining medium imaging and the telephoto wide-angle lens receive control signals through the control signal interface 8, the acquired infrared image is transmitted via the data interface 9. The optical filter part is arranged between the long-focus wide-angle lens and the infrared machine core special for refined medium imaging, the first optical filter 101, the second optical filter 102 and the third optical filter 103 form an included angle of 120 degrees and are fixedly arranged on the support, and the support is controlled by the control module to rotate so as to realize the switching of the optical filters, thereby realizing the switching of different infrared wave bands. The control module comprises a peripheral circuit and a motor, the motor is used for driving the support to rotate, and the peripheral circuit is used for receiving a control instruction so as to control the motor to rotate.

By controlling the switching of the optical filter, the infrared cassette mechanism special for the imaging of the refining medium at least covers three atmospheric infrared transmission spectrum bands of 3.1-3.4 microns, 7.2-7.8 microns and 10.5-10.8 microns to monitor the leakage of the refining production gas medium, the noise equivalent temperature difference is not more than 50mk @25 ℃, and the pixel size is not more than 25 microns m x 25 microns, so that the infrared cassette mechanism is used for monitoring the leakage of the refining production gas medium and the liquid medium; the focal length of the long-focus wide-angle lens 2 is not less than 50mm, the field angle is greater than 12 degrees, the average infrared transmittance is greater than 80 percent, the focusing can be carried out electrically, and the explosion-proof identification grade of the explosion-proof shell 3 is not less than exdIIBT 4.

The monitoring process is illustrated below by taking monitoring of the tank farm as an example:

as shown in fig. 6, in the tank area leakage high-point itinerant monitoring field, the sequence of leakage itinerant is 301 → 302 → 304 → 305 → 306 → 307 → 301, 303 is a non-leakage sensitive area, therefore 303 is not monitored as a leakage target area, the cradle head is controlled to rotate at a preset pitch angle and a preset rotation angle to align the center of the tele wide lens with the sensitive area, the filter is controlled to select a suitable filter for filtering according to the leakage type of the current sensitive area, for example, when the specialized infrared movement for imaging of the refined medium operates in a 3.1 μm to 3.4 μm band, a leakage gas medium smoke cloud is monitored in the leakage target area 304, the specialized infrared movement for imaging is further switched to operate in a 7.2 μm to 7.8 μm band, the leakage target area 304 still presents a leakage gas medium smoke cloud, and the monitored leakage gas medium smoke cloud clearly contrasts with the background of the sky of the imaging picture, thereby being capable of obviously judging whether the leakage monitoring target area leaks or not.

This embodiment still provides a refinery production leakage monitoring system based on infrared imaging, its characterized in that includes:

the refinery production leakage monitoring device based on infrared imaging is described above;

at least one infrared imaging device as described above;

the infrared imaging device is used for collecting infrared images of the leakage target area, and the monitoring device is used for controlling the infrared imaging device to rotate, receiving the infrared images collected by the infrared imaging device and judging whether the leakage target area leaks or not according to the received infrared images.

The monitoring device is in communication connection with the plurality of infrared imaging devices through the bus, and control and data exchange of each infrared imaging device are achieved.

In summary, the infrared imaging device is controlled to rotate at a preset angle, each rotation corresponds to one leakage target area, and infrared image acquisition is performed on different leakage target areas through switching the optical filter in different infrared wave bands, so that online and real-time itinerant monitoring is realized, meanwhile, the interference of a monitoring environment on infrared imaging can be eliminated, the technical problems that the response is slow, the efficiency is low, and the imaging result of a leakage medium is easily influenced by various factors in the prior art during leakage detection of refining production are solved, and the infrared imaging device has the characteristics of quick response, high efficiency and strong on-site interference resistance.

While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications are within the scope of the embodiments of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.

Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to make a single chip, a chip, or a processor (processor) execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In addition, any combination of the various embodiments of the present invention is also possible, and the same shall be considered as disclosed in the embodiments of the present invention as long as it does not depart from the spirit of the embodiments of the present invention.