Pipe partition device and system

Abstract

The utility model provides a kind of pipeline partition device and system, it is related to pipeline operation technical field, the device includes: flow detection device is set to diffusion pipe, for detecting the flow size of target gas in the diffusion pipe, and the gas flow obtained by detection is sent to processor, the diffusion pipe is vertically connected in main pipeline, the main pipeline is used to transport target gas;Blanking valve is set to the main pipeline, for being in closed state when operating circuit loses power, and when the operating circuit is powered on, the transport of target gas in the main pipeline is controlled;The processor is used to receive the gas flow, and according to the gas flow, issue target instruction, the target instruction is used to control whether the operating circuit of the blanking valve is powered on.

Description

Technical Field

[0001] This utility model relates to the field of pipeline operation technology, and in particular to a pipeline isolation device and system. Background Technology

[0002] In the event of gas equipment maintenance, troubleshooting, or accidents, isolation devices can quickly cut off the gas supply to the relevant gas equipment from the gas pipeline network, isolating the faulty or maintenance area from other normally operating areas. This prevents gas leaks from causing explosions, fires, or poisoning, ensuring the safety of personnel and equipment. Simultaneously, isolation devices can divide the gas pipeline network into several independent sections, facilitating operation, maintenance, and repair of specific areas without affecting the normal operation of other sections, thus improving production flexibility and reliability. Currently, steel enterprises typically use blind valves to control gas pipeline isolation devices. However, in recent years, large-scale gas leaks caused by the operation of open blind valves, resulting in personnel poisoning, have occurred frequently. This is related to insufficient comprehensive safety awareness and skills among current employees, and the failure to implement the inherent safety of isolation devices. In particular, blind valve operations performed without confirming the gas conditions within the pipeline are highly susceptible to misoperation, leading to large-scale gas leaks and personnel poisoning. Utility Model Content

[0003] This utility model provides a detection method and system for overhead crane operations, which is used to solve the problem of gas leakage caused by misoperation of blind valves in related technologies.

[0004] In a first aspect, embodiments of the present invention provide a pipe isolation device, the device comprising: A flow detection device is installed in the vent pipe to detect the flow rate of the target gas in the vent pipe and send the detected gas flow rate to the processor. The vent pipe is vertically connected to the main pipeline, which is used to transport the target gas. A blind flange valve is installed in the main pipeline and is used to be in a closed state when the operating circuit is de-energized, and to control the delivery of the target gas in the main pipeline when the operating circuit is energized. The processor is used to receive the gas flow rate and issue a target instruction based on the gas flow rate. The target instruction is used to control whether the operating circuit of the blind valve is energized.

[0005] Optionally, the device further includes: A pressure detection device is installed in the vent pipe to detect the pressure inside the vent pipe and send the detected pipe pressure to the processor. The processor is further configured to receive the pipeline pressure and issue the target command based on the gas flow rate and / or the pipeline pressure.

[0006] Optionally, the device further includes: A vent valve, installed in a vent pipe, is used to control the delivery of the target gas within the vent pipe.

[0007] Optionally, the device further includes: The shut-off valve is located at a target position on the main pipeline, which is the side of the vent pipe furthest from the blind valve, and is used to control the delivery of the target gas in the main pipeline.

[0008] Optionally, the processor is configured to receive the gas flow rate and / or the pipeline pressure when the shut-off valve is in the closed state and the vent valve is in the open state, and to issue the target command based on the gas flow rate and / or the pipeline pressure.

[0009] Optionally, the target instruction includes a first instruction; The processor is configured to issue the first instruction when the gas flow rate is greater than a preset flow rate value or the pipeline pressure is greater than a preset pressure value. The first instruction is used to control the operation circuit of the blind valve to lose power.

[0010] Optionally, the target instruction further includes a second instruction; The processor is configured to issue a second instruction when the gas flow rate is not greater than a preset flow rate value and the pipeline pressure is not greater than a preset pressure value. The second instruction is used to control the operation circuit of the blind valve to be energized.

[0011] Optionally, the device further includes: A display device, connected to the processor, is used to display the gas flow rate and / or the pipeline pressure.

[0012] Optionally, the device further includes: An alarm device, connected to the processor, is used to provide an audible and visual alarm in response to an alarm prompt; The processor is also configured to issue an alarm when the gas flow rate is greater than the gas alarm value or the pipeline pressure is greater than the pressure alarm value.

[0013] Secondly, embodiments of the present invention provide a pipe isolation system, the system comprising: Main pipeline body; A vent pipe, which is vertically connected to the main pipeline body; The device is a pipe isolation device as described in the first aspect.

[0014] According to the pipeline isolation device provided in this embodiment of the utility model, the device specifically includes: a flow detection device, disposed in a vent pipe, for detecting the flow rate of the target gas in the vent pipe and sending the detected gas flow rate to a processor; the vent pipe is vertically connected to a main pipeline, which is used to transport the target gas; a blind valve, disposed in the main pipeline, for being closed when the operating circuit is de-energized and for controlling the transport of the target gas in the main pipeline when the operating circuit is energized; and a processor, for receiving the gas flow rate and issuing a target command based on the gas flow rate, the target command being used to control whether the operating circuit of the blind valve is energized. By controlling the operating circuit of the blind valve through the processor, manual intervention is reduced, achieving automated control, which can reduce personnel injury and improve personnel safety. In addition, the processor controls the blind valve based on the gas flow rate, which can detect gas leaks based on the gas flow rate, thereby avoiding gas leaks caused by misoperation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This invention illustrates the structural concept of a pipe isolation device provided in an embodiment of the present invention; Figure 2 This invention illustrates the structural concept of a pipe isolation system provided by an embodiment of the present invention; Figure 3 This invention illustrates a communication system structure concept of a pipe isolation system provided by an embodiment of the present invention.

[0017] Diagram markings: 1—Main pipe; 2—Vent pipe; 3—Processor; 4—Shut-off valve; 5—Vent valve; 6—Flow detection device; 7—Pressure detection device; 8—Blind valve; 9—Display device; 10—Alarm device. Detailed Implementation

[0018] As described in the background section, direct emission of coal gas generated during steel production would lead to energy waste and environmental pollution. Collecting this coal gas through relevant processes and distributing it via gas pipelines to various production stages, such as heating furnaces, power boilers, and coke ovens, provides heat energy to meet production process requirements. This achieves energy recovery and reuse, improves energy efficiency, and reduces production costs. Furthermore, in the event of gas equipment maintenance, malfunction handling, or accidents, isolation devices can quickly cut off the gas supply to the relevant equipment from the gas pipeline network, isolating the faulty or maintenance area from other normally operating areas. This prevents gas leaks from causing explosions, fires, or poisoning, ensuring the safety of personnel and equipment. Simultaneously, isolation devices can divide the gas pipeline network into several independent sections, facilitating operation, maintenance, and repair of specific areas without affecting the normal operation of other parts, thus improving production flexibility and reliability. Currently, gas pipeline isolation devices in steel enterprises are usually controlled by blind valves. However, in recent years, large-scale gas leaks caused by the operation of open blind valves have frequently led to personnel poisoning accidents. The reasons are related to the insufficient comprehensive safety awareness and skills of existing employees and the failure to achieve the inherent safety of isolation devices. In particular, blind valve operation without confirming the gas situation in the pipeline is very likely to cause large-scale gas leaks and personnel poisoning due to misoperation of the blind valve.

[0019] According to the pipeline isolation device provided in this embodiment of the utility model, the device specifically includes: a flow detection device, disposed in a vent pipe, for detecting the flow rate of the target gas in the vent pipe and sending the detected gas flow rate to a processor; the vent pipe is vertically connected to a main pipeline, which is used to transport the target gas; a blind valve, disposed in the main pipeline, for being closed when the operating circuit is de-energized and for controlling the transport of the target gas in the main pipeline when the operating circuit is energized; and a processor, for receiving the gas flow rate and issuing a target command based on the gas flow rate, the target command being used to control whether the operating circuit of the blind valve is energized. By controlling the operating circuit of the blind valve through the processor, manual intervention is reduced, achieving automated control, which can reduce personnel injury and improve personnel safety. In addition, the processor controls the blind valve based on the gas flow rate, which can detect gas leaks based on the gas flow rate, thereby avoiding gas leaks caused by misoperation.

[0020] The technical solution of this utility model and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0021] Figure 1This illustration shows a pipe isolation device 100 provided in an embodiment of the present invention. For example... Figure 1 As shown, the device 100 includes: a flow detection device 6, disposed in the vent pipe 2, for detecting the flow rate of the target gas in the vent pipe 2 and sending the detected gas flow rate to the processor 3; the vent pipe 2 is vertically connected to the main pipeline 1, and the main pipeline 1 is used to transport the target gas; a blind valve 8, disposed in the main pipeline 1, for being closed when the operating circuit is de-energized, and for controlling the transport of the target gas in the main pipeline 1 when the operating circuit is energized; and the processor 3, for receiving the gas flow rate and issuing a target command based on the gas flow rate, the target command being used to indicate whether the operating circuit of the blind valve 8 is energized.

[0022] In this embodiment of the invention, the vent pipe 2 is connected to the main pipe 1, and the target gas in the main pipe 1 can flow through the vent pipe 2. The target gas can be coal gas. The flow detection device 6 can be a flow meter to detect the flow rate of the coal gas in the vent pipe. The blind valve 8 can be an electric blind valve, which is in an uncontrollable state when the operating circuit is de-energized, that is, in a default closed state. The blind valve 8 can be in a controllable state when the operating circuit is energized, and can be operated by the processor, such as opening or closing, or manually. Since the vent pipe 2 is connected to the main pipe 1, the flow rate of the coal gas in the vent pipe 2 is the same as the flow rate of the coal gas in the main pipe 1. The processor 3 can issue a target command based on the gas flow rate in the main pipe 1. For example, when the gas flow rate is 0, there is no coal gas in the main pipe 1 and the vent pipe 2, and the processor 3 can issue a command to open the operating circuit of the blind valve 8.

[0023] In this embodiment of the invention, the processor 3 can be a single electronic device or multiple electronic devices working together. The electronic device can be a server, including a standalone physical server, a server cluster consisting of multiple servers, and a cloud server capable of cloud computing.

[0024] To make the target instructions issued by the processor more accurate, the device further includes a pressure detection device 7, disposed in the vent pipe 2, for detecting the pressure within the vent pipe 2 and sending the detected pipe pressure to the processor 3. The processor 3 is also used to receive the pipe pressure and, based on the gas flow rate and / or the pipe pressure, issue the target instructions.

[0025] In this embodiment of the invention, a pressure detection device 7 can also be installed on the vent pipe 2. The pressure detection device 7 can be a pressure detector. This invention does not impose specific restrictions on the installation order of the pressure detection device 7 and the flow detection device 6. Since the vent pipe 2 is connected to the main pipe 1, the pipe pressure in the vent pipe 2 is the same as the pipe pressure in the main pipe 1. The processor can issue target commands based on the pipe pressure. For example, when the pipe pressure is 0, there is no pressure in the main pipe 1 and the vent pipe 2, and the processor 3 can issue a command to open the operating circuit of the blind valve 8.

[0026] In this utility model, the pipeline isolation device can be used to isolate gas, and is a general term for devices that reliably prevent gas leakage into the isolated area. The pipeline isolation device can be standalone or modular; modular isolation devices typically consist of a blind valve and other valves. Specifically, the device further includes: A vent valve 5 is installed in the vent pipe 2 and is used to control the delivery of the target gas within the vent pipe 2. A shut-off valve 4 is installed at a target position in the main pipeline 1, which is the side of the vent pipe 2 furthest from the blind valve 8, and is used to control the delivery of the target gas within the main pipeline 1.

[0027] In this embodiment of the invention, the processor 3 is used to receive the gas flow rate and / or the pipeline pressure when the shut-off valve 4 is in the closed state and the vent valve 5 is in the open state, and to issue the target command based on the gas flow rate and / or the pipeline pressure. Specifically, the processor 3 is used to issue the first command when the gas flow rate is greater than a preset flow rate value or the pipeline pressure is greater than a preset pressure value, the first command being used to instruct the operating circuit of the blind valve 8 to be de-energized. When the gas flow rate is not greater than the preset flow rate value and the pipeline pressure is not greater than the preset pressure value, the processor 3 is used to issue the second command, the second command being used to instruct the operating circuit of the blind valve to be energized. The target command is either the first command or the second command. The preset pressure value and the preset flow rate value can be any value, for example, both can be 0, or both can be 1, and the preset pressure value and the preset flow rate value can be different.

[0028] In this embodiment of the invention, to avoid detection device errors or misjudgments due to transient gas changes, the processor 3 may issue the first instruction when the gas flow rate is greater than a preset flow rate value for the duration, or when the pipeline pressure is greater than a preset pressure value for the duration. The processor may also issue the second instruction when the gas flow rate is not greater than the preset flow rate value for the duration, and when the pipeline pressure is not greater than the preset pressure value for the duration. The second instruction is used to instruct the operating circuit of the blind valve to be energized.

[0029] In this embodiment of the invention, the device further includes: a display device 9, connected to the processor 3, for displaying the gas flow rate and / or the pipeline pressure. The display device 9 and the processor 3 may be communicatively connected, and the display device 9 may be located in a monitoring room or similar location. In this embodiment of the invention, the device further includes: an alarm device 10, connected to the processor 3, for providing an audible and visual alarm in response to an alarm prompt; the processor 3 is also used to issue an alarm prompt when the gas flow rate exceeds a gas alarm value or the pipeline pressure exceeds a pressure alarm value. When the processor 3 issues an alarm prompt, the display device 9 may also display a pop-up notification. The gas warning value and pressure warning value may also be preset by the operator and can be any value.

[0030] Figure 2 This invention discloses a pipe isolation system 200, which includes: Main pipe body 1; Vent pipe 2, which is vertically connected to the main pipeline body; Device 100, the device being as follows Figure 1 The aforementioned pipe isolation device 100.

[0031] In this embodiment of the invention, a portable intelligent control pressure detector 7 and / or flow detector 6 are installed at the vent pipe 2. During isolation operations, personnel can evacuate the site after installing the portable detection instruments. The remotely operated shut-off valve 4 is closed, and after replacement, the vent valve 5 is opened. The processor 3 remotely detects the on-site pipeline pressure and / or gas flow. When the pipeline pressure exceeds a preset pressure value, or the gas flow exceeds a preset flow value, the processor 3 issues a first command, connecting the controller DO point of the blind valve 8's electrical system to output a signal, de-energizing the blind valve 8's operating circuit. The blind valve 8 cannot operate and remains closed. When the pipeline pressure is not greater than the preset pressure value, and the gas flow is not greater than the preset flow value, the processor 3 outputs a second command, energizing the blind valve 8's operating circuit. The processor 3 does not interfere with the blind valve's operation; at this time, the blind valve can be opened or closed. Simultaneously, personnel can remotely monitor real-time data via the display device 9. The pipeline pressure and / or gas flow can be displayed in the control room or via a mobile phone through the cloud. This system ensures operation is carried out under conditions of no pressure and no gas leakage, effectively providing a front-end detection method to guarantee the safety of operators entering the site environment. Preset pressure and / or preset flow rates can be dynamically set according to different operating conditions, making it suitable for a wide range of applications.

[0032] Figure 3 This illustration shows the structural concept of a communication system for a pipe isolation system provided by an embodiment of the present invention. For example... Figure 3As shown, the communication system of the pipeline isolation system provided by this utility model includes a cloud platform as processor 3 and an IoT controller. The IoT controller supports relay output (DO), the communication protocol supports the cloud platform, and it receives matching signals such as pipeline pressure and gas flow. When the pipeline pressure and / or gas flow exceeds a preset value, it outputs a first command to de-energize the blind valve 8's valve control circuit, preventing operation of the field valve. When the detected value is below the set value, it ensures the pressure is within the safe operating range and does not affect the operation of the field valve.

[0033] The communication system of the pipeline isolation device provided by this utility model also includes an intelligent control display terminal as a display device 9, which receives signals such as pipeline pressure and gas flow transmitted from the cloud platform and displays the real-time pressure and flow of the connected pipeline. The display device 9 can also be used to set the acquisition frequency of the detection instruments (flow detection device 6 and / or pressure detection device 7) and the interlock alarm setting values ​​(i.e., gas alarm value and / or pressure alarm value).

[0034] The communication system of the pipeline isolation device provided by this utility model also includes an intelligent gateway, which can receive 4G signals, supports multiple communication methods, and can provide one external RS485 and TCP interface. It can connect to PLC communication modules (the PLC control module of the flow detection device 6 and / or the PLC control module of the pressure detection device 7) and interconnect with configuration software. The intelligent gateway ensures the stability of signal network transmission from the three major operating base stations, operating uninterruptedly throughout the year. The PLC and configuration software can simultaneously acquire data. The intelligent control cloud platform provides a data platform for the communication system, supporting the uploading, downloading, and storage of data from the instruments connected to the platform.

[0035] The pipeline isolation device provided in this embodiment is custom-designed for gas isolation devices in metallurgical enterprises. It can be installed under normal production conditions without production shutdown. By installing an intelligent wireless pressure and flow detector at the detection point of the vent pipe 2, it directly reflects the pressure value and interface flow rate in the pipeline. Simultaneously, it is compatible with multiple pressure detection point interfaces on site and can be disassembled and installed at any time within the measurable range, meeting the intermittent measurement needs of the gas isolation device. Battery powered, it can be moved to the required measurement point at any time, saving equipment costs. Furthermore, the installed intelligent wireless pressure transmitter can upload data to a dedicated cloud platform. Under the premise of ensuring network security, by integrating a portable intelligent control pressure transmitter with an IoT terminal, combined with a gateway and cloud-based intelligent control matrix, remote detection of pressure data and automated control of relay equipment can be achieved. This enables remote detection of pipeline pressure between open blind valves and closed valves, fundamentally avoiding factors such as loss of control due to personnel, materials, and management measures, providing a safe operating environment on site. Furthermore, in this embodiment of the invention, a pressure-flow dual-parameter coupled judgment model is first proposed. By analyzing the correlation between the pipeline pressure fluctuation curve (sampling frequency 100Hz) and the opening degree of the relief valve (±0.5 accuracy) in real time, the safety pressure threshold (adjustable from 0.5 to 3kPa) is dynamically adjusted. Compared with the traditional fixed 1kPa threshold, the misjudgment rate is reduced by 92%.

[0036] In an exemplary embodiment, the processor may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0037] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions that can be executed by a processor of a device to perform the methods described above. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc. When the instructions in this non-transitory computer-readable storage medium are executed by a processor of an electronic device, the processor is able to perform the methods described above.

[0038] This utility model embodiment also provides a computer program product, including a computer program, which, when executed by a processor, is as described above.

[0039] The above description does not provide detailed technical specifications regarding the structure of each layer. However, those skilled in the art should understand that layers and regions of desired shapes can be formed using various technical means. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above. Additionally, although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be advantageously combined.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pipe partitioning device, characterized by, The device includes: A flow detection device is installed in the vent pipe to detect the flow rate of the target gas in the vent pipe and send the detected gas flow rate to the processor. The vent pipe is vertically connected to the main pipeline, which is used to transport the target gas. A blind flange valve is installed in the main pipeline and is used to be in a closed state when the operating circuit is de-energized, and to control the delivery of the target gas in the main pipeline when the operating circuit is energized. The processor is used to receive the gas flow rate and issue a target instruction based on the gas flow rate. The target instruction is used to control whether the operating circuit of the blind valve is energized.

2. The apparatus of claim 1, wherein, The device further includes: A pressure detection device is installed in the vent pipe to detect the pressure inside the vent pipe and send the detected pipe pressure to the processor. The processor is further configured to receive the pipeline pressure and issue the target command based on the gas flow rate and / or the pipeline pressure.

3. The apparatus of claim 2, wherein, The device further includes: A vent valve, installed in a vent pipe, is used to control the delivery of the target gas within the vent pipe.

4. The apparatus of claim 3, wherein, The device further includes: The shut-off valve is located at a target position on the main pipeline, which is the side of the vent pipe furthest from the blind valve, and is used to control the delivery of the target gas in the main pipeline.

5. The apparatus of claim 4, wherein, The processor is configured to receive the gas flow rate and / or the pipeline pressure when the shut-off valve is in the closed state and the vent valve is in the open state, and to issue the target command based on the gas flow rate and / or the pipeline pressure.

6. The apparatus of claim 5, wherein, The target instruction includes a first instruction; The processor is configured to issue the first instruction when the gas flow rate is greater than a preset flow rate value or the pipeline pressure is greater than a preset pressure value. The first instruction is used to control the operating circuit of the blind valve to lose power.

7. The apparatus of claim 6, wherein, The target instruction also includes a second instruction; The processor is configured to issue a second instruction when the gas flow rate is not greater than a preset flow rate value and the pipeline pressure is not greater than a preset pressure value. The second instruction is used to control the operation circuit of the blind valve to be energized.

8. The apparatus of claim 2, wherein, The device further includes: A display device, connected to the processor, is used to display the gas flow rate and / or the pipeline pressure.

9. The apparatus according to claim 2, characterized in that, The device further includes: An alarm device, connected to the processor, is used to provide an audible and visual alarm in response to an alarm prompt; The processor is also configured to issue an alarm when the gas flow rate is greater than the gas alarm value or the pipeline pressure is greater than the pressure alarm value.

10. A pipe partition system characterized by, The system includes: Main pipeline body; A vent pipe, which is vertically connected to the main pipeline body; The device is a pipe isolation device as described in any one of claims 1-9.

Images