Blind plate and intelligent management method thereof
By designing clamping and monitoring components on the blind flange, and utilizing sensors and an electronic control system, remote monitoring and alarm functions for the blind flange are achieved. This solves the safety hazards caused by the extensive management of blind flanges and ensures the safety and accuracy of blind flange removal and installation operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG CHAMBROAD PETROCHEMICALS CO LTD
- Filing Date
- 2026-01-30
- Publication Date
- 2026-05-12
AI Technical Summary
The current management of blind flanges is lax, and there are frequent cases of blind flanges being removed or plugged without a work permit, resulting in safety hazards. The management system is unable to meet the requirements of safety management.
Design a blind flange that includes a blind flange body, a clamping assembly, and a monitoring assembly. The clamping assembly consists of a first flange, a second flange, and fixing bolts. The monitoring assembly uses sensors to detect whether the blind flange has been removed and is connected to an electronic control assembly and an alarm module to achieve remote monitoring and alarm.
This effectively prevents unauthorized removal or installation of blind flanges, enables control over blind flange installation and installation operations, ensures the accuracy of blind flange installation and removal locations, and improves safety.
Smart Images

Figure CN122014949A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of blind plate technology, and in particular to a blind plate and an intelligent management method. Background Technology
[0002] Blind flanges are a crucial safety isolation component in industrial piping systems. Essentially, they are solid, circular plates without a central hole, with bolt holes drilled along their outer edge. The primary function of a blind flange is to permanently or temporarily and completely block the flow of media within the pipeline, forming a reliable isolation barrier. Applications of blind flanges include: 1. Safety Isolation: When equipment or pipeline sections require maintenance or repair, installing blind flanges ensures complete isolation from the operating system, preventing accidental leakage of toxic, harmful, flammable, or explosive media and ensuring personnel safety. 2. System Separation: In new construction, expansion, or renovation projects, they are used to isolate different subsystems or stages of construction from the main system. 3. Pressure Testing: During pipeline strength or sealing tests, blind flanges are used to seal the end of the system to establish test pressure. 4. Sealing Unused Ports: Permanently sealing unused pipeline branches, outlets, or reserved openings.
[0003] In related technologies, accidents may occur due to incorrect placement of blind flanges, incorrect removal of blind flanges, inadequate implementation of safety measures during the removal and plugging process, or lack of effective supervision and management. Relevant accidents at home and abroad have fully demonstrated this.
[0004] Currently, chemical refining units have many blind flanges and lax management. There are frequent cases of blind flanges being removed or plugged without obtaining work permits, which can easily lead to safety hazards. Relying solely on management systems to manage blind flanges is no longer sufficient to meet the current safety management requirements. Summary of the Invention
[0005] The purpose of this application is to provide a blind flange and an intelligent management method that can control the blind flange removal and installation operation, and effectively avoid the harm caused by unauthorized removal and installation of blind flanges.
[0006] To achieve the above objectives, this application provides a blind plate, including: a blind plate body, a clamping assembly, and a monitoring assembly.
[0007] The clamping assembly includes a first flange, a second flange, and fixing bolts. The blind flange body is located between the first flange and the second flange, and the fixing bolts are used to connect the first flange and the second flange.
[0008] The monitoring component is used to detect whether the blind plate body has been removed.
[0009] In some embodiments, the monitoring component includes a first protective cover, a second protective cover, and a sensor. The first protective cover is mounted on the first flange, and the second protective cover is mounted on the second flange. The first protective cover and the second protective cover can be connected to each other by locking members to close the fixing bolts at corresponding positions. The sensor is used to monitor whether the first protective cover and the second protective cover have been disassembled.
[0010] In some embodiments, the locking element is a sprue bolt, and both the first protective cover and the second protective cover are provided with connecting grooves. The sprue bolt passes through the corresponding connecting grooves and is tightened by a locking nut.
[0011] In some embodiments, the system further includes an electronic control component, which includes a management system and a signal transmission module. The management system is located in a remote computer, and the sensor is electrically connected to the signal transmission module. The signal transmission module is electrically connected to the remote computer.
[0012] In some embodiments, an alarm module is also provided, which is capable of emitting audible and visual signals, and the alarm module is electrically connected to the signal transmission module.
[0013] In some embodiments, a position locating element is also provided, which is an electronic identification tag that is detachably mounted on the first protective cover.
[0014] In some embodiments, a power supply module is also provided, which is electrically connected to the sensor, the signal transmission module and the alarm module.
[0015] A method for intelligent management of blind plates, applied to the aforementioned blind plates, includes the following steps:
[0016] The management system obtains blind plate information, checks whether the blind plate positions are correct and whether any blind plates are missing based on the obtained blind plate information, and determines whether the blind plate information meets the preset requirements.
[0017] If the blind flange information meets the requirements, the management system will deactivate the alarm module of the corresponding blind flange to prompt the construction personnel to unlock the first and second protective covers of the corresponding blind flange and carry out the blind flange removal and plugging operation.
[0018] In some embodiments, before the blind flange removal and plugging operation, information of the positioning component is obtained through a mobile terminal, and the blind flange information is determined to be correct through the mobile terminal, so as to realize secondary verification of the blind flange information.
[0019] In some embodiments, if the blind flange information does not meet the requirements, when the sensor detects the opening operation of the first protective cover and the second protective cover, the sensor sends a signal to the signal transmission module to trigger an alarm signal to prompt the construction personnel to stop the blind flange removal and plugging operation.
[0020] Compared to the aforementioned background technology, the blind flange provided in this application includes a blind flange body, a clamping assembly, and a monitoring assembly. The clamping assembly includes a first flange, a second flange, and fixing bolts. The blind flange body is located between the first and second flanges. The fixing bolts are used to connect the first and second flanges. The monitoring assembly is used to detect whether the blind flange body has been removed. If blind flange removal or installation is required, the fixing bolts must be removed first. When the worker removes the fixing bolts, the monitoring assembly is triggered to remotely monitor the blind flange, preventing unauthorized removal or installation of the blind flange without a work permit. The blind flange and its intelligent management method of this application can control blind flange removal or installation operations, effectively avoiding the hazards caused by unauthorized removal or installation of blind flanges. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the blind plate structure according to an embodiment of this application.
[0023] in:
[0024] 1. Blind flange body; 21. First flange; 22. Second flange; 23. Fixing bolts; 31. First protective cover; 32. Second protective cover; 33. Sensor; 34. Locking device; 4. Power supply module. Detailed Implementation
[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.
[0028] like Figure 1 As shown, the blind flange provided in this application embodiment includes a blind flange body 1, a clamping assembly, and a monitoring assembly. The clamping assembly includes a first flange 21, a second flange 22, and a fixing bolt 23. The blind flange body 1 is located between the first flange 21 and the second flange 22. The fixing bolt 23 is used to connect the first flange 21 and the second flange 22. The monitoring assembly is used to detect whether the blind flange body 1 is removed.
[0029] Specifically, the blind flange body 1 is located at the junction of two pipes. The first flange 21 is fixedly installed at the end of one of the pipes, and the second flange 22 is fixedly installed at the end of the other pipe. The first flange 21 and the second flange 22 have the same structure and are distributed opposite to each other. The blind flange body 1 is located between the first flange 21 and the second flange 22. The first flange 21 and the second flange 22 are provided with a plurality of fixing bolts 23 evenly distributed along their circumference. Each fixing bolt 23 is threadedly engaged with the first flange 21 and the second flange 22, thereby fixing the first flange 21 and the second flange 22 together and clamping the blind flange body 1 between the first flange 21 and the second flange 22.
[0030] Understandably, if blind flange removal or installation is required, the fixing bolt 23 must be removed first. When the worker removes the fixing bolt 23, the monitoring component will be triggered to remotely monitor the blind flange and prevent the blind flange from being removed or installed without a work permit.
[0031] Based on the above embodiments, the monitoring component includes a first protective cover 31, a second protective cover 32, and a sensor 33. The first protective cover 31 is installed on the first flange 21, and the second protective cover 32 is installed on the second flange 22. The first protective cover 31 and the second protective cover 32 can be connected to each other to seal the fixing bolts 23 at corresponding positions. The sensor 33 is used to monitor whether the first protective cover 31 and the second protective cover 32 have been disassembled.
[0032] Specifically, there are two monitoring components, symmetrically distributed on both sides of the first flange 21 and the second flange 22. The first protective cover 31 includes a locking seat and a connecting plate. The locking seat is a cuboid structure with a locking hole at its center. The locking hole extends vertically and penetrates the top and bottom of the locking seat. The diameter of the locking hole is the same as the outer diameter of the fixing bolt 23, allowing the fixing bolt 23 to extend into the locking hole. The connecting plate is an L-shaped plate, comprising a first plate and a second plate. The first plate is vertically distributed, with its top end fixedly connected to the side wall of the locking seat and its bottom end fixedly connected to the second plate. The second plate is horizontally distributed. The second protective cover 32 has the same structure as the first protective cover 31. The locking seats of the first protective cover 31 and the second protective cover 32 are both sleeved on the upper and lower ends of the fixing bolt 23. The two second plates of the first protective cover 31 and the second protective cover 32 are connected to each other through the locking member 34, thereby clamping the first flange 21 and the second flange 22 between the first protective cover 31 and the second protective cover 32. The sensor 33 can be a magnetic induction sensor 33, which has the ability to monitor magnetoresistive arrays. The sensor 33 is located between the first protective cover 31 and the second protective cover 32, and abuts against the first protective cover 31 and the second protective cover 32 respectively.
[0033] Understandably, since the two ends of the fixing bolt 23 are located in the locking holes of the first protective cover 31 and the second protective cover 32 respectively, if the fixing bolt 23 needs to be removed, the first protective cover 31 and the second protective cover 32 need to be removed first. When the first protective cover 31 or the second protective cover 32 is removed, the sensor 33 detects a change in the magnetic field, thereby sending a signal to remind the management personnel that there is a risk of the blind plate being removed.
[0034] Based on the above embodiments, the locking member 34 is a sprue bolt, and both the first protective cover 31 and the second protective cover 32 are provided with connecting grooves. The sprue bolt passes through the corresponding connecting grooves and is tightened by locking nuts.
[0035] Understandably, the inclusion of the ingot bolts facilitates manual removal of the first protective cover 31 and the second protective cover 32 by workers, thereby improving disassembly efficiency and saving time during blind flange removal and plugging operations.
[0036] In some embodiments, the system further includes an electronic control component, which includes a management system and a signal transmission module. The management system is located in a remote computer, and the sensor 33 is electrically connected to the signal transmission module. The signal transmission module is electrically connected to the remote computer.
[0037] Specifically, the management system can perform ticket application, ticket review, and blind plate monitoring. Before performing blind plate removal and installation operations, the blind plate information needs to be entered into the management system to apply for a ticket. After receiving the application, the management system reviews the ticket and uses the entered blind plate information to determine whether the blind plate is installed in the correct position and whether any blind plates have been missed.
[0038] Understandably, after obtaining the permit, when removing the first protective cover 31 and the second protective cover 32, the sensor 33 will transmit a signal to the signal transmission module, which will then transmit the data to the management system. If no permit has been obtained, the management system will send a message to the relevant department after receiving the signal from the sensor 33, to alert the relevant personnel that there is an abnormal blind plate removal operation.
[0039] In some embodiments, an alarm module is also provided, which is capable of emitting audible and visual signals, and the alarm module is electrically connected to the signal transmission module.
[0040] Understandably, when the first protective cover 31 and the second protective cover 32 are removed, the sensor 33 also sends an electrical signal through the alarm module of the signal transmission module box. If no ticket has been processed in the management system, the alarm module will send an audible and visual alarm signal.
[0041] In some embodiments, a position locating element is also provided, which is an electronic identification tag that is detachably mounted on the first protective cover 31.
[0042] Understandably, the electronic identification tag has a QR code. Before the blind flange removal operation, the location information of the blind flange needs to be verified by scanning the code. If the blind flange does not match the ticket information, during the removal of the first protective cover 31 and the second protective cover 32, the sensor 33 sends an electrical signal to the management system and the alarm module through the signal transmission module. The management system will send information to the functional departments, and the alarm module will issue an alarm signal. In some other embodiments, the electronic identification tag has RFID, and on-site personnel can read the information of the electronic identification tag using a card reader.
[0043] In some embodiments, a power supply module 4 is also provided, which is electrically connected to the sensor 33, the signal transmission module, and the alarm module.
[0044] Specifically, the power supply module 4 can be a rechargeable battery. The power supply module 4 is used to supply power to the sensor 33 and the alarm module to prevent the sensor 33 and the alarm module from failing due to insufficient power.
[0045] The intelligent management method for blind plates according to embodiments of this application, applied to the aforementioned blind plates, includes the following steps:
[0046] The management system obtains blind plate information, checks whether the blind plate positions are correct and whether any blind plates are missing based on the obtained blind plate information, and determines whether the blind plate information meets the preset requirements.
[0047] If the blind flange information meets the requirements, the management system deactivates the alarm module of the corresponding blind flange to prompt the construction personnel to unlock the first protective cover 31 and the second protective cover 32 of the corresponding blind flange and proceed with the blind flange removal and installation operation. Before the blind flange removal and installation operation, information from the positioning component is obtained through a mobile terminal, and the blind flange information is verified to ensure its correctness.
[0048] If the blind flange information does not meet the requirements or the management system does not obtain the blind flange information, when the sensor detects the opening operation of the first protective cover 31 and the second protective cover 32, the sensor 33 sends a signal to the signal transmission module to trigger an alarm signal to prompt the construction personnel to stop the blind flange removal and plugging operation.
[0049] In summary, the blind flange and its intelligent management method in this application can control the blind flange removal and plugging operation, effectively avoid the harm caused by unauthorized removal and plugging of blind flanges, and effectively control and confirm the blind flange installation and removal and plugging positions to avoid errors in blind flange removal and plugging.
[0050] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0051] The blind plate and its intelligent management method provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A blind plate, characterized in that, include: Blind body (1); The clamping assembly includes a first flange (21), a second flange (22), and a fixing bolt (23). The blind flange body (1) is located between the first flange (21) and the second flange (22). The fixing bolt (23) is used to connect the first flange (21) and the second flange (22). A monitoring component is used to detect whether the blind plate body (1) has been removed.
2. The blind plate according to claim 1, characterized in that, The monitoring component includes a first protective cover (31), a second protective cover (32), and a sensor (33). The first protective cover (31) is installed on the first flange (21), and the second protective cover (32) is installed on the second flange (22). The first protective cover (31) and the second protective cover (32) can be connected to each other by a locking member (34) to close the fixing bolts (23) at the corresponding positions. The sensor (33) is used to monitor whether the first protective cover (31) and the second protective cover (32) have been disassembled.
3. The blind plate according to claim 2, characterized in that, The locking component (34) is a sprue bolt. Both the first protective cover (31) and the second protective cover (32) are provided with connecting grooves. The sprue bolt passes through the corresponding connecting grooves and is tightened by locking nuts.
4. The blind plate according to claim 3, characterized in that, It also includes an electronic control component, which includes a management system and a signal transmission module. The management system is located in a remote computer. The sensor (33) is electrically connected to the signal transmission module, and the signal transmission module is electrically connected to the remote computer.
5. The blind plate according to claim 4, characterized in that, It is also equipped with an alarm module, which can emit audible and visual signals, and the alarm module is electrically connected to the signal transmission module.
6. The blind plate according to claim 5, characterized in that, It is also provided with a position positioning component, which is an electronic identification tag, and the electronic identification tag is detachably mounted on the first protective cover (31).
7. The blind plate according to claim 6, characterized in that, It is also equipped with a power supply module (4), which is electrically connected to the sensor (33), the signal transmission module and the alarm module.
8. An intelligent management method for a blind plate, applied to the blind plate described in claim 7, characterized in that, Includes the following steps: The management system obtains blind plate information, checks whether the blind plate positions are correct and whether any blind plates are missing based on the obtained blind plate information, and determines whether the blind plate information meets the preset requirements. If the blind plate information meets the requirements, the management system will shut down the alarm module of the corresponding blind plate to prompt the construction personnel to unlock the first protective cover (31) and the second protective cover (32) of the corresponding blind plate and carry out the blind plate removal and plugging operation.
9. The intelligent management method for blind plates according to claim 8, characterized in that, Before the blind flange removal and plugging operation, the following steps are also taken: obtaining the location positioning component information through a mobile terminal, and determining whether the blind flange information is correct through the mobile terminal, so as to realize the blind flange information for a second time.
10. The intelligent management method for blind plates according to claim 9, characterized in that, Also includes: If the blind flange information does not meet the requirements, when the sensor (33) senses the opening operation of the first protective cover (31) and the second protective cover (32), the sensor (33) sends a signal to the signal transmission module to make the alarm signal issue an alarm signal to prompt the construction personnel to stop the blind flange removal and plugging operation.