Carbon dioxide field detection device and carbon dioxide pipeline leakage detection system

Abstract

The utility model belongs to the technical field of gas leakage detection, and particularly relates to a carbon dioxide on-site detection device and a carbon dioxide pipeline leakage detection system.The carbon dioxide on-site detection device comprises a ventilation duct, an alarm assembly and a controller, a carbon dioxide detection piece is arranged at the other end of the ventilating duct; the controller is electrically connected with the carbon dioxide detection piece and the alarm assembly. A carbon dioxide field detection device is arranged near a carbon dioxide conveying pipeline, the concentration of carbon dioxide around the carbon dioxide pipeline is detected in real time through a carbon dioxide detection piece, an alarm assembly comprises multiple alarm modes used for sending different alarm signals, and each alarm mode corresponds to different concentration threshold values of the carbon dioxide concentration. The controller is used for switching the corresponding alarm mode according to the concentration threshold value of the carbon dioxide concentration, so that the numerical value of the carbon dioxide concentration is visually reflected, and an operator can take corresponding treatment measures.

Description

Technical Field

[0001] The present application belongs to the technical field of gas leakage detection, and specifically relates to a carbon dioxide on-site detection device and a carbon dioxide pipeline leakage detection system. Background Art

[0002] China attaches great importance to CCUS (carbon capture, utilization and storage) technology and has included CCUS technology in the national medium- and long-term science and technology development plan. The CCUS industry chain consists of multiple links such as carbon dioxide capture, compression, transportation, utilization or storage, which requires high integration and coordinated development of all links. Carbon dioxide pipeline transportation is one of the three indispensable core links of carbon dioxide capture and storage technology. Its main function is to transport the captured carbon dioxide to the utilization or storage site.

[0003] Carbon dioxide is a colorless, odorless, non-toxic gas that is non-flammable and non-explosive. Compared with the dangers of refined oil and natural gas, carbon dioxide is a non-toxic asphyxiating gas with a higher density than air. After leakage, it tends to accumulate in low-lying areas or confined spaces, which not only damages the surrounding environment and inhibits the growth of soil microorganisms, but also may cause suffocation, poisoning, frostbite, and even death risks for humans and animals (median lethal concentration of 5%). When the pipeline is in operation, third-party damage, pipeline corrosion, failure of pipeline materials or structures, and illegal operation by personnel may all cause pipeline leakage or breakage. Leaked carbon dioxide will cause harm to human health and the ecological environment, so carbon dioxide pipeline leakage detection is very important.

[0004] The carbon dioxide detection device in the prior art cannot directly reflect the specific value of the carbon dioxide concentration when issuing an alarm signal. Utility Model Content

[0005] The purpose of the present application is to provide a carbon dioxide on-site detection device and a carbon dioxide pipeline leakage detection system, which are intended to intuitively reflect the numerical value of carbon dioxide concentration.

[0006] In order to achieve the above-mentioned purpose, the present application provides a first aspect of a carbon dioxide on-site detection device, comprising:

[0007] A ventilation duct, one end of which is connected to the external air path, and the other end of which is provided with a carbon dioxide detection element for detecting the carbon dioxide concentration;

[0008] an alarm component, comprising a plurality of alarm modes for issuing different alarm signals, each of the alarm modes corresponding to a different concentration threshold of the carbon dioxide concentration; and

[0009] A controller is electrically connected to the carbon dioxide detection element and the alarm assembly, and the controller is configured as follows:

[0010] Setting the concentration threshold and receiving the carbon dioxide concentration detected by the carbon dioxide detection element;

[0011] The carbon dioxide concentration is compared with the concentration threshold, and when the carbon dioxide concentration is greater than the concentration threshold, the alarm component is activated and the corresponding alarm mode is switched according to the concentration threshold.

[0012] In some embodiments, the alarm component includes three alarm modes, and the three alarm modes are respectively a first-level alarm, a second-level alarm, and a third-level alarm, the concentration threshold corresponding to the first-level alarm is 0.2%, the concentration threshold corresponding to the second-level alarm is 0.5%, and the concentration threshold corresponding to the third-level alarm is 1%, and the controller is further configured as follows:

[0013] When the carbon dioxide concentration is less than 0.2%, turning off the alarm component;

[0014] When the carbon dioxide concentration is greater than or equal to 0.2% and less than 0.5%, the alarm component is activated and switched to the first level alarm;

[0015] When the carbon dioxide concentration is greater than or equal to 0.5% and less than 1%, the alarm component is activated and switched to the second level alarm;

[0016] When the carbon dioxide concentration is greater than or equal to 1%, the alarm component is activated and switched to the third level alarm.

[0017] In some embodiments, the carbon dioxide on-site detection device further includes a display electrically connected to the controller, and the display is used to display the carbon dioxide concentration.

[0018] In some embodiments, the carbon dioxide on-site detection device includes a detection shell and a plurality of partitions arranged in the detection shell, the ventilation duct is formed between the plurality of partitions, and the side wall of the detection shell is provided with a ventilation hole corresponding to the ventilation duct.

[0019] In some embodiments, the display is mounted on the top wall of the detection housing, a protection plate is arranged above the detection housing in parallel and at intervals, and a connecting plate slidably connected to the side wall of the detection housing is provided on the side of the protection plate.

[0020] In some embodiments, the side walls of the detection shell extend in a vertical direction, the top wall of the detection shell includes a flat surface and a sloped surface, the flat surface is vertically connected to the side walls of the detection shell, the sloped surface is obliquely connected to the side walls of the detection shell, and the display is mounted on the flat surface.

[0021] In some embodiments, the number of the ventilation ducts is four and the four ventilation ducts are arranged in a cross shape, and the carbon dioxide detection element is disposed at the center of the cross.

[0022] The second aspect of the present application is a carbon dioxide pipeline leakage detection system, comprising:

[0023] Carbon dioxide on-site detection devices; and

[0024] A remote terminal is connected to the carbon dioxide on-site detection device for communication, and is used to receive the carbon dioxide concentration and issue an alarm reminder according to the alarm mode.

[0025] In some embodiments, the remote terminal includes:

[0026] a cloud server, connected in communication with the carbon dioxide on-site detection device, the cloud server being used to receive and record the carbon dioxide concentration; and

[0027] An operating device, which is in communication with the carbon dioxide on-site detection device via the cloud server, and is used to visualize the carbon dioxide concentration and issue the alarm reminder according to the alarm mode;

[0028] There are multiple types of alarm reminders, and the multiple types of alarm reminders correspond one-to-one to the multiple alarm modes.

[0029] In some embodiments, the remote terminal is communicatively connected to the controller and is used to set the concentration threshold.

[0030] Through the above technical solution, the carbon dioxide on-site detection device and carbon dioxide pipeline leakage detection system provided by the present application have the following beneficial effects:

[0031] A carbon dioxide field detection device is arranged near the carbon dioxide pipeline that transports carbon dioxide, and the air is directed to the carbon dioxide detection element through the ventilation duct to detect the carbon dioxide concentration around the carbon dioxide pipeline in real time. When the carbon dioxide concentration reaches the concentration threshold, the alarm component is activated by the controller to send an alarm signal to prompt the operator of the leakage location, so that the operator can maintain the carbon dioxide pipeline in time. In this application, the alarm component includes a plurality of alarm modes for sending different alarm signals, each alarm mode corresponds to a different concentration threshold of carbon dioxide concentration, and the corresponding alarm mode is switched by the controller according to the concentration threshold reached by the carbon dioxide concentration, so as to intuitively reflect the value of the carbon dioxide concentration, so that the operator can take corresponding treatment measures according to the value of the carbon dioxide concentration.

[0032] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0034] Figure 1 It is a structural schematic diagram of a carbon dioxide on-site detection device according to a specific embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the structure of the detection housing according to a specific embodiment of the present application;

[0036] Figure 3 It is a cross-sectional schematic diagram of a detection shell according to a specific embodiment of the present application;

[0037] Figure 4 It is a structural schematic diagram of a carbon dioxide pipeline leakage detection system according to a specific embodiment of the present application;

[0038] Figure 5 It is a schematic diagram of the arrangement of a carbon dioxide on-site detection device according to a specific embodiment of the present application;

[0039] Figure 6 It is a schematic diagram of the structure of a power supply device according to a specific embodiment of the present application.

[0040] Description of Reference Numerals

[0041] 100 CO2 field detection device 200 CO2 pipeline

[0042] 300 Remote Terminal 1 Ventilation Duct

[0043] 2 Carbon dioxide detection device 3 Controller

[0044] 4 Buzzer 5 Warning light

[0045] 6 Partition 7 Detection housing

[0046] 8 Installation area 9 Heat dissipation vent

[0047] 10 Ventilation 11 Display

[0048] 12 Flat surface 13 Slope surface

[0049] 14 Button Group 15 IoT Chip

[0050] 16 Protection plate 17 Connection plate

[0051] 18 Sliding groove 19 Sliding sheet

[0052] 20 Limiting column 21 Solar photovoltaic panel

[0053] 22 Charge and discharge control unit 23 Inverter

[0054] 24 Battery Pack 25 Cloud Server

[0055] 26 Operating equipment 27 Circuit board

[0056] 28 Indicator Lights DETAILED DESCRIPTION

[0057] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0058] The following describes the noun part of the carbon dioxide on-site detection device 100 and the carbon dioxide pipeline leakage detection system according to the present application with reference to the accompanying drawings.

[0059] like Figures 1 to 3 As shown, a specific embodiment of the present application provides a carbon dioxide on-site detection device 100, including a ventilation duct 1, an alarm component and a controller 3, wherein one end of the ventilation duct 1 is connected to the external air path, and the other end of the ventilation duct 1 is provided with a carbon dioxide detection element 2 for detecting the carbon dioxide concentration; the alarm component includes a plurality of alarm modes for issuing different alarm signals, and each alarm mode corresponds to a different concentration threshold of the carbon dioxide concentration; the controller 3 is electrically connected to the carbon dioxide detection element 2 and the alarm component, and the controller 3 is configured to: set a concentration threshold and receive the carbon dioxide concentration detected by the carbon dioxide detection element 2; compare the carbon dioxide concentration with the concentration threshold, and when the carbon dioxide concentration is greater than the concentration threshold, start the alarm component and switch the corresponding alarm mode according to the concentration threshold.

[0060] The carbon dioxide pipeline 200 in this application refers to the pipeline on the site, that is, the transmission pipeline installed overhead above the ground. The carbon dioxide pipeline 200 is used to transport the captured carbon dioxide to the utilization or storage site. During the long-term operation of the carbon dioxide pipeline 200, the pipeline may leak or break due to third-party damage, pipeline corrosion, pipeline material or structure failure, and personnel illegal operation. The leaked carbon dioxide will cause great harm to human health and the ecological environment. Therefore, it is necessary to set up a carbon dioxide field detection device 100 along the carbon dioxide pipeline 200 to detect the carbon dioxide concentration near the carbon dioxide pipeline 200 and equip operators for maintenance.

[0061] When the carbon dioxide concentration is too high, the carbon dioxide on-site detection device 100 will send out an alarm signal. When the operator finds the alarm signal during regular patrols of the carbon dioxide pipeline 200, the carbon dioxide pipeline 200 will be repaired. Since the harmfulness of carbon dioxide concentrations is different, the operator cannot obtain the carbon dioxide concentration through a single alarm signal. In the present application, the alarm component includes a plurality of alarm modes for sending different alarm signals, each alarm mode corresponds to a different concentration threshold of carbon dioxide concentration. When the carbon dioxide concentration reaches any concentration threshold, the controller 3 will switch to the alarm mode corresponding to the concentration threshold reached, thereby intuitively reflecting the value of the carbon dioxide concentration, so that the operator can take corresponding treatment measures according to the value of the carbon dioxide concentration.

[0062] The harmfulness of carbon dioxide is often not taken seriously. In fact, compared with the dangers of common refined oil, natural gas and other substances, carbon dioxide is a non-toxic asphyxiating gas. It is a colorless, odorless and non-toxic gas that is non-flammable and non-explosive. When carbon dioxide leaks, it tends to accumulate in low-lying areas or confined spaces, which will not only damage the surrounding environment and inhibit the growth of soil microorganisms, but may also cause suffocation, poisoning and frostbite to humans and animals, and even cause death. Therefore, carbon dioxide pipeline 200 leakage detection is very important.

[0063] Carbon dioxide is harmless to the human body under normal circumstances, but it will cause harm to the human body when the concentration is too high. A certain concentration of carbon dioxide is necessary to maintain normal human breathing. The concentration of carbon dioxide in normal air is 0.03%. When the concentration of carbon dioxide exceeds the normal value, it will cause harm to the human body. When the concentration of carbon dioxide reaches 1%, it will cause dizziness and palpitations; when the concentration of carbon dioxide reaches 5%, it will cause vertigo; when the concentration of carbon dioxide exceeds 6%, it will cause unconsciousness or even respiratory arrest.

[0064] Based on the harmfulness of different concentrations of carbon dioxide mentioned above, in some embodiments, the alarm component includes three alarm modes and the three alarm modes are respectively a first-level alarm, a second-level alarm and a third-level alarm. The concentration threshold corresponding to the first-level alarm is 0.2%, the concentration threshold corresponding to the second-level alarm is 0.5%, and the concentration threshold corresponding to the third-level alarm is 1%. The controller 3 is also configured as follows: when the carbon dioxide concentration is less than 0.2%, the alarm component is turned off; when the carbon dioxide concentration is greater than or equal to 0.2% and less than 0.5%, the alarm component is started and switched to the first-level alarm; when the carbon dioxide concentration is greater than or equal to 0.5% and less than 1%, the alarm component is started and switched to the second-level alarm; when the carbon dioxide concentration is greater than or equal to 1%, the alarm component is started and switched to the third-level alarm.

[0065] Furthermore, the alarm component includes a buzzer 4 and an alarm light 5. The sound emitted by the buzzer 4 and the flashing frequency of the alarm light 5 are different in different alarm modes: the first-level alarm mode: the buzzer 4 emits a gentle alarm sound, and the alarm light 5 flashes slowly; the second-level alarm mode: the buzzer 4 emits a short alarm sound, and the alarm light 5 flashes quickly; the third-level alarm mode: the buzzer 4 emits a rapid alarm sound, and the alarm light 5 flashes quickly. The different alarm modes of the buzzer 4 and the alarm light 5 can be used to remind the operator of the carbon dioxide concentration in an auditory and visual manner, so that the operator can take corresponding treatment measures according to the value of the carbon dioxide concentration.

[0066] In fact, the concentration thresholds corresponding to different alarm modes can be adjusted, and more concentration thresholds and alarm modes can be added to refine the distinction of carbon dioxide concentration as needed. The concentration threshold can be set by the operator through the controller 3.

[0067] Those skilled in the art can understand that the carbon dioxide detection element 2 uses an electrochemical sensor element based on the principle of electrochemical gas sensing technology, and the electrochemical sensor element has an oxide electrode and a reference electrode: when carbon dioxide molecules in the air enter the electrochemical sensor element and react with the electrolyte on the oxide electrode, a current change will be generated, and the value of carbon dioxide concentration is determined by measuring this current change. In addition to the electrochemical sensor element, the carbon dioxide detection element 2 can also use other elements such as infrared absorption detectors, and other elements also fall within the protection scope of this application.

[0068] In some embodiments, the carbon dioxide on-site detection device 100 includes a detection shell 7 in which a plurality of ventilation ducts 1 are formed. One end of the plurality of ventilation ducts 1 is connected to the outside, and the other ends are connected to each other and intersect at a detection area. The carbon dioxide detection element 2 is arranged in the detection area. The carbon dioxide detection element 2 is protected by the detection shell 7. At the same time, the ventilation ducts 1 are opened to allow air to enter the detection shell 7 and be detected by the carbon dioxide detection element 2, thereby increasing the service life of the carbon dioxide detection element 2.

[0069] It should be noted that the directional words used in this application, such as "up, down, left, right, front, and back", are usually relative to the directions shown in the drawings. The position descriptor "inside" used refers to the inside of the component, and the position descriptor "outside" used refers to the outside of the component.

[0070] Preferably, the number of ventilation ducts 1 is four and the four ventilation ducts 1 are arranged in a cross shape, and the carbon dioxide detection element 2 is arranged at the center of the cross, so that the carbon dioxide detection element 2 is in contact with the air on all sides to enhance the contact between the carbon dioxide detection element 2 and the air, thereby improving the sensitivity of the carbon dioxide on-site detection device 100.

[0071] Specifically, a circuit board 27 is provided on the bottom wall of the detection shell 7, and four partitions 6 are provided in the detection shell 7. The shape of the partitions 6 is L-shaped. The four partitions 6 are respectively located at the four corners of the detection shell 7, and four cross-arranged ventilation passages 1 are formed between the four partitions 6. The upper end of the partition 6 is tightly connected to the top wall of the detection shell 7, and the lower end of the partition 6 is tightly fitted to the circuit board 27. The front side wall, rear side wall, left side wall and right side wall of the detection shell 7 are respectively provided with ventilation holes 10.

[0072] Furthermore, the side ends of the four partitions 6 are tightly connected to the side walls of the detection shell 7 to form four installation areas 8. The four installation areas 8 are respectively located at the four corners of the detection shell 7. The other auxiliary components of the carbon dioxide on-site detection device 100 are installed in the installation areas 8 and electrically connected to the circuit board 27, so that the other auxiliary components are separated from the carbon dioxide detection element 2, thereby avoiding the heat generated by other auxiliary components from affecting the detection of the carbon dioxide detection element 2.

[0073] Preferably, a heat dissipation opening 9 is provided on the side wall of the detection housing 7 , and the heat dissipation opening 9 is arranged corresponding to the installation area 8 , thereby facilitating the heat dissipation of other auxiliary components in the installation area 8 .

[0074] Specifically, each installation area 8 is provided with two heat dissipation openings 9, which are respectively located on the side walls of the adjacent detection housing 7. Each heat dissipation opening 9 and ventilation opening 10 is covered with a filter screen to reduce dust from entering the detection housing 7.

[0075] Furthermore, the filter screen is covered with a waterproof film, which does not affect the entry of air but can prevent the entry of rainwater, thereby preventing rainwater from entering the detection housing 7 and damaging other auxiliary components.

[0076] In some embodiments, the carbon dioxide on-site detection device 100 includes a display 11 electrically connected to the controller 3, and the display 11 is used to display the carbon dioxide concentration, so that on-site workers can obtain real-time data on the carbon dioxide concentration; the carbon dioxide on-site detection device 100 includes a button group 14 electrically connected to the controller 3, and the button group 14 is used to adjust the concentration threshold.

[0077] Specifically, the display 11 is located in the installation area 8 at the left rear corner; the Internet of Things chip 15 and the button group 14 are located in the installation area 8 at the right rear corner; the buzzer 4 and the alarm light 5 are located in the installation area 8 at the left front corner, and the top wall of the detection shell 7 is equipped with an indicator light 28 electrically connected to the alarm light 5, and the indicator light 28 and the alarm light 5 flash synchronously; the controller 3 is located in the installation area 8 at the lower right corner.

[0078] Further, the side wall of the detection housing 7 extends in the vertical direction, and the top wall of the detection housing 7 includes a flat surface 12 and a slope surface 13, the flat surface 12 is vertically connected to the side wall of the detection housing 7, and the slope surface 13 is obliquely connected to the side wall of the detection housing 7, the flat surface 12 is located at the rear side, the slope surface 13 is located at the front side, and the display 11 and the button group 14 are both installed on the flat surface 12. The installation of the display 11 and the button group 14 is facilitated by providing the flat surface 12, and the accumulation of rainwater on the top wall is avoided by providing the slope surface 13.

[0079] Preferably, a protective plate 16 is arranged in parallel above the detection shell 7, the length of the protective plate 16 in the front-to-back direction is consistent with the length of the flat panel surface 12 in the front-to-back direction, the width of the protective plate 16 in the left-to-right direction is consistent with the width of the flat panel surface 12 in the left-to-right direction, and the side of the protective plate 16 is provided with a connecting plate 17 that is slidably connected to the side wall of the detection shell 7, thereby protecting the display 11 and the button group 14.

[0080] Specifically, there are two connecting plates 17, which are respectively connected to the left and right sides of the protection plate 16. The left and right walls of the detection housing 7 are respectively formed with sliding grooves 18 extending in the front-to-back direction. A sliding sheet 19 is slidably arranged in the sliding groove 18. The sliding sheet 19 is connected to the connecting plate 17, thereby realizing the sliding cooperation between the protection plate 16 and the detection housing 7. When the operator needs to view the display 11 or use the button group 14, the protection plate 16 is slid forward to facilitate the operator's operation.

[0081] Furthermore, the front and rear ends of the sliding groove 18 are provided with limiting posts 20 that cooperate with the sliding sheet 19 to prevent the protection plate 16 from separating from the detection housing 7. The limiting posts 20 are threadedly connected to the detection housing 7, and a rubber ring is provided on the limiting posts 20 to reduce wear caused by sliding impact.

[0082] like Figure 4 As shown, the specific embodiment of the present application also provides a carbon dioxide pipeline leakage detection system, including a carbon dioxide on-site detection device 100 and a remote terminal 300, wherein the remote terminal 300 is connected to the carbon dioxide on-site detection device 100 for communication, and the remote terminal 300 is used to receive the carbon dioxide concentration and issue an alarm reminder according to the alarm mode. Since the carbon dioxide pipeline leakage detection system adopts all embodiments of the carbon dioxide on-site detection device 100, the carbon dioxide pipeline leakage detection system has all the beneficial effects brought by the carbon dioxide on-site detection device 100.

[0083] When the carbon dioxide concentration is too high, the carbon dioxide on-site detection device 100 will send out an alarm signal. When the operator finds the alarm signal during regular patrols of the carbon dioxide pipeline 200, the carbon dioxide pipeline 200 will be repaired. Obviously, the operator can only find the alarm signal during patrols, which makes it impossible to repair the carbon dioxide pipeline 200 in time. In this application, the carbon dioxide concentration is remotely transmitted to the operator in real time through a remote terminal 300 that is connected to the carbon dioxide on-site detection device 100, and an alarm reminder is remotely sent to the operator when the carbon dioxide on-site detection device 100 sends out an alarm signal, so that the operator can go to the leakage of the carbon dioxide pipeline 200 in time for repair, thereby avoiding the impact of excessive carbon dioxide concentration on the ecological environment and human life.

[0084] In some embodiments, the remote terminal 300 includes a cloud server 25 and an operating device 26, wherein the cloud server 25 is communicatively connected to the carbon dioxide on-site detection device 100, and the cloud server 25 is used to receive and record the carbon dioxide concentration; the operating device 26 is communicatively connected to the carbon dioxide on-site detection device 100 through the cloud server 25, and the operating device 26 is used to visualize the carbon dioxide concentration and issue an alarm reminder based on the alarm signal.

[0085] With the development of cloud storage technology, a cloud server 25 based on a message queue telemetry transmission protocol is built through a cloud service platform to transmit and store data, thereby providing a stable and efficient communication infrastructure for the communication connection between the operating device 26 and the carbon dioxide field detection device 100. With the development of Internet technology, by installing a program developed based on a message queue telemetry transmission protocol on the operating device 26 to visualize data and make an alarm reminder for an alarm signal, the operating personnel can remotely grasp the detection data of the carbon dioxide field detection device 100, and then the operating personnel can promptly deal with the leakage of the carbon dioxide pipeline 200, which is efficient and timely.

[0086] In addition, when the carbon dioxide concentration increases to a certain level, it will threaten the life safety of the operators. The visualization function of the operating device 26 is used to inform the operators of the carbon dioxide concentration near the carbon dioxide pipeline 200, thereby reminding the operators to wear appropriate protective measures, thereby reducing the safety risks of the operators in dealing with carbon dioxide pipeline 200 leakage accidents.

[0087] Preferably, the operating device 26 includes three alarm reminders and they appear corresponding to the three alarm modes of the alarm component:

[0088] First level alarm reminder (corresponding to the first level alarm mode): a white alarm pop-up window will pop up;

[0089] Second level alarm reminder (corresponding to the second level alarm mode): a yellow alarm pop-up window will pop up;

[0090] Third level alarm reminder (corresponding to the third level alarm mode): a red alarm pop-up window will pop up.

[0091] The carbon dioxide concentration is remotely and intuitively displayed through different alarm reminders appearing on the operating device 26, thereby reminding the operator.

[0092] It will be understood by those skilled in the art that the operating device 26 may be a fixed device with a display function or a mobile device with a display function, such as a computer, a mobile phone, a tablet, etc.; the Message Queuing Telemetry Transport protocol (Message Queuing Telemetry Transport) optimizes data transmission efficiency and reduces network bandwidth requirements compared to traditional industrial communication protocols, thereby helping to reduce energy consumption to achieve the goal of energy conservation and emission reduction.

[0093] Preferably, a wireless LAN or cellular data connection is used between the cloud server 25 and the carbon dioxide on-site detection device 100, and between the operating device 26 and the cloud server 25. With the development of communication technology, the use of wireless LAN and cellular data can provide stable and timely communication services between the cloud server 25, the operating device 26 and the carbon dioxide on-site detection device 100.

[0094] In order to realize remote transmission of detection data of the carbon dioxide on-site detection device 100, the present application also makes corresponding improvements to the carbon dioxide on-site detection device 100. In some embodiments, the carbon dioxide on-site detection device 100 includes an Internet of Things chip 15 electrically connected to the controller 3, and the Internet of Things chip 15 is communicatively connected to the remote terminal 300 and is used to remotely transmit the carbon dioxide concentration received by the controller 3 to the remote terminal 300.

[0095] In the specific implementation of the present application, the carbon dioxide pipeline leakage detection system detects the carbon dioxide pipeline 200 by using the remote terminal 300 in cooperation with the carbon dioxide on-site detection device 100, thereby realizing the intelligent and information-based leakage detection of the carbon dioxide pipeline 200, thereby improving the processing capability of the detection data of the carbon dioxide on-site detection device 100 and providing more data support and convenient functions for operators.

[0096] like Figure 5As shown, in some embodiments, a plurality of groups of carbon dioxide field detection devices 100 are arranged at axial intervals along the carbon dioxide pipeline 200, and an axial position label is set in the controller 3 for each group of carbon dioxide field detection devices 100. When any group of carbon dioxide field detection devices 100 sends an alarm signal, the carbon dioxide field detection devices 100 synchronously transmit the axial position label to the remote terminal 300 through the cloud server 25, so that the operating personnel can directly obtain the leakage axial position of the carbon dioxide pipeline 200, thereby speeding up the search for the leakage point of the carbon dioxide pipeline 200.

[0097] Specifically, the operator needs to set up detection points on the carbon dioxide pipeline 200 along the axial direction, and the axial distance between adjacent detection points is generally 100m. The setting of the detection points needs to take into account the length of the carbon dioxide pipeline 200, the layout and extension direction of the carbon dioxide pipeline 200, and additional detection points are set for locations with harsh environmental conditions and frequent historical leakage (low-lying areas of non-enclosed places, main entrances and exits or boundaries, and places where carbon dioxide gas is prone to accumulate). Each detection point is equipped with a set of on-site detection devices, so as to achieve comprehensive monitoring along the carbon dioxide pipeline 200.

[0098] Preferably, each group of carbon dioxide field detection devices 100 includes a plurality of carbon dioxide field detection devices 100 arranged at circumferential intervals along the carbon dioxide pipeline 200. Each carbon dioxide field detection device 100 sets a circumferential position tag in the controller 3. When any carbon dioxide field detection device 100 sends an alarm signal, the carbon dioxide field detection device 100 synchronously transmits the circumferential position tag to the remote terminal 300 through the cloud server 25, thereby cooperating with the axial position tag to accurately locate the leakage position, thereby accelerating the search for the leakage point of the carbon dioxide pipeline 200.

[0099] Specifically, multiple layout points are set near each detection point along the axial direction of the carbon dioxide pipeline 200, and multiple carbon dioxide field detection devices 100 of the same group are respectively arranged at various layout points near the same detection point. Generally, there are at least two layout points and they are located on both sides of the carbon dioxide pipeline 200. The setting of the layout points needs to focus on high-risk locations such as joints, flanges, valves, welded joints, elbows and tees.

[0100] Furthermore, in non-enclosed places, the carbon dioxide on-site detection device 100 is arranged at a height of 0.3m to 0.6m from the ground. When the carbon dioxide on-site detection device 100 is located on the upwind side of the annual minimum frequency wind direction of the release source of the carbon dioxide pipeline 200, the distance between the carbon dioxide on-site detection device 100 and the release source should be less than 4m. When the carbon dioxide on-site detection device 100 is located on the leeward side of the annual minimum frequency wind direction of the release source of the carbon dioxide pipeline 200, the distance between the carbon dioxide on-site detection device 100 and the release source should be less than 2m. In enclosed places (generally compressor rooms or pump rooms), the installation height of the carbon dioxide on-site detection device 100 is below the human breathing height (1.3m), and the distance between the carbon dioxide on-site detection device 100 and the release source should be less than 2m.

[0101] In some embodiments, the program developed based on the message queue telemetry transmission protocol includes five modules: a control console, a monitoring room, an information service center, a fault reporting center, and a management center. Each module has different functions, thereby facilitating the use of operators and thereby improving the practicality and convenience of the carbon dioxide on-site detection system.

[0102] Console: Displays the detailed location and detection data of each carbon dioxide field detection device 100 and has the function of remote control to adjust the alarm threshold. Operators can obtain the data of each carbon dioxide field detection device 100 in real time from the console and adjust the alarm threshold of each carbon dioxide field detection device 100 individually, thereby achieving flexible management of the carbon dioxide field detection device 100.

[0103] Monitoring room: The detection data of each carbon dioxide on-site detection device 100 is visualized to form a virtual model of the carbon dioxide pipeline 200, so as to more intuitively display the detection data of the carbon dioxide on-site detection device 100; the number and record of the alarm signals issued by the carbon dioxide on-site detection device 100 on that day are displayed, and the number and record of the alarm signals issued are stored in the cloud server 25, and the function of downloading records by time period is provided, so as to facilitate in-depth analysis and data backup by operators.

[0104] Information Service Center: Displays and provides information resources such as news materials, selected articles, company consultations, and technical manuals to meet the information needs of operators.

[0105] Fault reporting center: When an emergency such as a CO2 pipeline 200 leak or equipment damage occurs, operators can quickly upload fault details, on-site photos, and the exact location and time to relevant departments through the fault reporting center, and receive feedback from relevant departments to achieve interactive information transmission and communication; display fault reporting records and provide multiple screening criteria (such as this week, this month, within half a year, etc.) to enable users to efficiently and accurately track the processing progress, thereby significantly improving work efficiency and management quality.

[0106] Management Center: Configure personal account information for operators and provide a task receiving column so that operators can understand the daily work status in a timely manner and manage work effectively.

[0107] like Figure 6 As shown, in some embodiments, the carbon dioxide pipeline leakage detection system also includes a power supply device. The power supply device is arranged correspondingly when the carbon dioxide on-site detection device 100 is arranged. The power supply device includes a solar photovoltaic panel 21, a charge and discharge control unit 22, an inverter 23 and a battery pack 24. The solar photovoltaic panel 21 and the battery pack 24 are both connected to the inverter 23 through the charge and discharge control unit 22, and the inverter 23 is connected to the carbon dioxide on-site detection device 100 for power supply.

[0108] Specifically, the power supply connection method of the carbon dioxide on-site detection device 100 is: under sufficient sunshine conditions, the solar photovoltaic panel 21 can charge the battery pack 24 and simultaneously power the carbon dioxide on-site detection device 100, thereby realizing efficient use of energy; in the case of insufficient sunshine, such as at night or rainy weather, the battery pack 24 powers the detection device through the inverter 23 to ensure that the carbon dioxide on-site detection device 100 can continue to operate, thereby realizing all-weather carbon dioxide pipeline 200 leakage detection.

[0109] The structures and principles of the solar photovoltaic panel 21, the battery pack 24 and the inverter 23 are well known to those skilled in the art, and do not belong to the core improvement part of the present application, so they will not be described here.

[0110] In the specific implementation of this application: first, determine the detection points along the carbon dioxide pipeline 200 and arrange the carbon dioxide field detection device 100 and the power supply device at the detection points; then, when the carbon dioxide pipeline 200 leaks and reaches the alarm threshold, the carbon dioxide field detection device 100 near the leak point sends an alarm signal, and the remote terminal 300 appears an alarm reminder. The operator obtains the detailed location of the carbon dioxide pipeline 200 leak through the remote terminal 300 and goes to the site; finally, find the leak point according to the alarm signal and take corresponding treatment measures according to the level of the alarm signal. In this application, the real-time detection of the carbon dioxide pipeline 200 is achieved through the communication connection between the remote terminal 300 and the carbon dioxide field detection device 100, thereby improving the timeliness and accuracy of the leakage information transmission, while reducing the labor intensity and safety risks of the operators.

[0111] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0112] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0114] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A carbon dioxide on-site detection device, characterized in that: include: A ventilation duct (1) having one end connected to an external air path and the other end provided with a carbon dioxide detection element (2) for detecting carbon dioxide concentration; an alarm component, comprising a plurality of alarm modes for issuing different alarm signals, each of the alarm modes corresponding to a different concentration threshold of the carbon dioxide concentration; and A controller (3) is electrically connected to the carbon dioxide detection element (2) and the alarm component, and the controller (3) is configured as follows: Setting the concentration threshold and receiving the carbon dioxide concentration detected by the carbon dioxide detection element (2); The carbon dioxide concentration is compared with the concentration threshold, and when the carbon dioxide concentration is greater than the concentration threshold, the alarm component is activated and the corresponding alarm mode is switched according to the concentration threshold.

2. The carbon dioxide on-site detection device according to claim 1, characterized in that: The alarm component comprises three alarm modes, and the three alarm modes are respectively a first-level alarm, a second-level alarm and a third-level alarm. The concentration threshold corresponding to the first-level alarm is 0.2%, the concentration threshold corresponding to the second-level alarm is 0.5%, and the concentration threshold corresponding to the third-level alarm is 1%. The controller (3) is further configured as follows: When the carbon dioxide concentration is less than 0.2%, turning off the alarm component; When the carbon dioxide concentration is greater than or equal to 0.2% and less than 0.5%, the alarm component is activated and switched to the first level alarm; When the carbon dioxide concentration is greater than or equal to 0.5% and less than 1%, the alarm component is activated and switched to the second level alarm; When the carbon dioxide concentration is greater than or equal to 1%, the alarm component is activated and switched to the third level alarm.

3. The carbon dioxide on-site detection device according to claim 1, characterized in that: The carbon dioxide on-site detection device (100) further comprises a display (11) electrically connected to the controller (3), wherein the display (11) is used to display the carbon dioxide concentration.

4. The carbon dioxide on-site detection device according to claim 3, characterized in that: The carbon dioxide on-site detection device (100) comprises a detection shell (7) and a plurality of partitions (6) arranged in the detection shell (7), the ventilation duct (1) is formed between the plurality of partitions (6), and a ventilation opening (10) corresponding to and communicating with the ventilation duct (1) is provided on a side wall of the detection shell (7).

5. The carbon dioxide on-site detection device according to claim 4, characterized in that: The display (11) is mounted on the top wall of the detection housing (7); a protection plate (16) is arranged above the detection housing (7) in parallel and at intervals; a connecting plate (17) is provided on the side of the protection plate (16) and is slidably connected to the side wall of the detection housing (7).

6. The carbon dioxide on-site detection device according to claim 5, characterized in that: The side wall of the detection shell (7) extends in a vertical direction, the top wall of the detection shell (7) comprises a flat surface (12) and a slope surface (13), the flat surface (12) is vertically connected to the side wall of the detection shell (7), the slope surface (13) is obliquely connected to the side wall of the detection shell (7), and the display (11) is mounted on the flat surface (12).

7. The carbon dioxide on-site detection device according to claim 1, characterized in that: The number of the ventilation ducts (1) is four and the four ventilation ducts (1) are arranged in a cross shape, and the carbon dioxide detection element (2) is arranged at the center of the cross.

8. A carbon dioxide pipeline leakage detection system, characterized in that: include: The carbon dioxide on-site detection device (100) according to any one of claims 1 to 7; and A remote terminal (300) is connected in communication with the carbon dioxide on-site detection device (100), and the remote terminal (300) is used to receive the carbon dioxide concentration and issue an alarm reminder according to the alarm mode.

9. The carbon dioxide pipeline leakage detection system according to claim 8, characterized in that: The remote terminal (300) comprises: a cloud server (25) connected in communication with the carbon dioxide on-site detection device (100), the cloud server (25) being used to receive the carbon dioxide concentration and record the carbon dioxide concentration; and An operating device (26) is connected to the carbon dioxide on-site detection device (100) through the cloud server (25), and the operating device (26) is used to visualize the carbon dioxide concentration and issue the alarm reminder according to the alarm mode; There are multiple types of alarm reminders, and the multiple types of alarm reminders correspond one-to-one to the multiple alarm modes.

10. The carbon dioxide pipeline leakage detection system according to claim 8, characterized in that: The remote terminal (300) is connected to the controller (3) for communication and is used to set the concentration threshold.

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