Gas water seal remote operation monitoring system with temperature control function

Abstract

The utility model provides a gas water seal remote operation monitoring system with a temperature control function. The gas water seal remote operation monitoring system comprises a temperature control module which is composed of a temperature sensor, a temperature controller, a heat tracing power switch and electric heat tracing belts laid on the outer walls of a water drainage pipe and a water drainage pipe and the side wall of a water seal barrel; the temperature controller is fixed outside the water seal barrel and close to the inlet of the drain pipe; the output end of the heat tracing power switch is divided into three paths which are respectively connected with the drain pipe, the drain pipe and the electric heat tracing belt of the water seal barrel; the sensor module is arranged on a water seal barrel and a pipeline and is used for monitoring temperature, liquid level, pressure and gas concentration parameters of the water seal system in real time; the analog quantity acquisition all-in-one machine receives and processes analog quantity signals output by the temperature control module and the sensor module, and performs local data analysis; the communication module is connected with the analog quantity acquisition all-in-one machine and remotely transmits acquired data to a monitoring center; and the monitoring center displays the running state and parameters of the water seal in real time, stores and analyzes data, generates a visual report, and triggers an alarm in case of abnormality.

Description

Technical Field

[0001] This utility model relates to the field of gas water seal monitoring technology, and more specifically, to a remote operation monitoring system for gas water seal with temperature control function. Background Technology

[0002] Gas water seals are crucial safety devices in gas transmission and distribution systems, primarily used to prevent gas backfire, leakage, and explosion. Their principle is to prevent reverse gas flow in the pipeline through a liquid seal, ensuring safe system operation. Water seal devices in gas pipeline networks are typically affected by ambient temperature, pressure fluctuations, and the composition of the gas, therefore, their operation requires real-time monitoring and control to avoid safety hazards such as freezing, abnormal liquid levels, or leaks.

[0003] Currently, traditional gas water seal monitoring mainly relies on regular manual inspections, using methods such as visually checking water levels and manually measuring temperatures for maintenance. Some more advanced systems are equipped with local sensors (such as float-type level gauges) and simple electric heat tracing antifreeze devices. In addition, some high-end gas pipeline networks use PLCs (Programmable Logic Controllers) for local automated control, but still lack remote centralized monitoring and intelligent analysis capabilities.

[0004] The existing technology has the following shortcomings:

[0005] ① Poor temperature adaptability: Ordinary electric heat tracing devices usually use fixed start and stop temperature points, which cannot be intelligently adjusted according to environmental changes, easily leading to energy waste or incomplete antifreeze.

[0006] ② Lack of remote monitoring: Relying on manual inspections is inefficient and cannot obtain operational data in real time, making it difficult to provide timely warnings of sudden failures;

[0007] ③Low level of intelligence: It lacks data analysis and fault prediction capabilities and cannot optimize maintenance strategies based on historical operating data;

[0008] ④ Weak system scalability: Existing local control schemes are difficult to achieve centralized management of multiple water seal devices, which is not conducive to the intelligent upgrading of large-scale gas pipeline networks. Utility Model Content

[0009] To address the aforementioned technical problems, a remote operation monitoring system for a gas water seal with temperature control function is provided. This invention achieves fully automated monitoring of the gas water seal's anti-freezing insulation and operational status through intelligent temperature control module regulation of the electric heating tape, real-time monitoring of key parameters by a multi-sensor module, remote data transmission via 4G / 5G wireless communication, and comprehensive analysis and early warning by the monitoring center.

[0010] The technical means adopted in this utility model are as follows:

[0011] A remote operation monitoring system for a gas water seal with temperature control function includes: a water seal tank, a drain pipe, and a discharge pipe. Its distinguishing feature is that it further includes: a temperature control module, a sensor module, an analog signal acquisition unit, a communication module, and a monitoring center.

[0012] The temperature control module consists of a temperature sensor, a temperature controller, a heat tracing power switch, and electric heat tracing tapes laid on the outer walls of the drain pipe, the drain drain pipe, and the side walls of the water seal tank. The temperature controller is fixed outside the water seal tank and near the inlet of the drain pipe. Its input end is connected to the temperature sensor, and its output end is connected to the heat tracing power switch through an electrical circuit. The output end of the heat tracing power switch is divided into three paths, which are respectively connected to the electric heat tracing tapes of the drain pipe, the drain drain pipe, and the water seal tank.

[0013] The sensor module, installed on the water seal tank and pipeline, includes a temperature transmitter, a level transmitter, a pressure transmitter, and a carbon monoxide detector, used to monitor the temperature, level, pressure, and gas concentration parameters of the water seal system in real time.

[0014] The analog signal acquisition unit is connected to the sensor module and is used to receive and process the analog signals output by the temperature control module and the sensor module, and to perform local data analysis.

[0015] The communication module adopts a 4G / 5G DTU wireless transmission method and is connected to the analog quantity acquisition unit to remotely transmit the acquired data to the monitoring center.

[0016] The monitoring center includes PC and mobile terminals, which are used to display the operating status and parameters of the water seal in real time, store and analyze data, generate visual reports, and trigger alarms when abnormalities occur.

[0017] Furthermore, multiple temperature transmitters are provided, including one temperature transmitter installed on the outer wall of the water seal tank for monitoring the ambient temperature; another temperature transmitter installed on the wall of the drain pipe or spillway for monitoring the liquid temperature inside the pipe; the temperature transmitters are connected to the analog input terminals of the analog signal acquisition unit via shielded cables or RS485 buses.

[0018] Furthermore, the level transmitter is installed using a flange or thread, fixed to the top or side wall of the water seal tank, with the probe extending into the liquid; or a non-contact ultrasonic sensor is used, installed on the top of the tank directly facing the liquid surface; the level transmitter is connected to the dedicated level acquisition channel of the analog quantity acquisition machine via a two-wire / four-wire wiring method.

[0019] Furthermore, multiple pressure transmitters are provided, including one pressure transmitter located at the top of the gas phase space of the water seal barrel for monitoring gas pressure; another pressure transmitter installed upstream of the valve on the drain pipe for monitoring the fluid pressure in the pipeline; and the pressure transmitters are connected via a three-wire system to the DC24V power supply terminal and analog input terminal of the analog quantity acquisition unit.

[0020] Furthermore, the carbon monoxide detector is placed near the exhaust port of the water seal barrel or inside the inspection port to detect the concentration of leaked coal gas; it outputs the signal to the analog quantity acquisition unit via a 4-20mA+HART protocol.

[0021] Furthermore, the analog signal acquisition unit is installed in an explosion-proof box within 2 meters of the water seal tank using a wall-mounted or rail-mounted method. It includes: a main control module, an analog input module, a communication interface, a power supply module, and an expansion module, wherein:

[0022] The main control module uses an ARM Cortex-M7 or an industrial-grade PLC, runs a real-time operating system, and supports multi-task scheduling.

[0023] The analog input module includes an 8-channel 16-bit high-precision ADC, supporting 4-20mA / 0-10V signal input, with a sampling rate ≥1kHz;

[0024] The communication interface integrates RS485, Ethernet, and wireless module interfaces;

[0025] The power module has a DC24V wide voltage input and built-in surge protection and isolation circuits.

[0026] The expansion module is connected to an external digital I / O module for controlling relays or valves.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. This utility model provides a remote operation monitoring system for gas water seal with temperature control function. By integrating a temperature control module (electric heating tape + temperature closed-loop control), it solves the safety hazard caused by low temperature freezing of traditional gas water seal. It achieves the technical effect of automatically starting and stopping electric heating and accurately maintaining the temperature of the water seal system within a safe range (such as 5~40℃), avoiding energy waste caused by manual inspection or constant heating, and has a significant energy-saving effect.

[0029] 2. The gas water seal remote operation monitoring system with temperature control function provided by this utility model solves the problems of low efficiency and data lag in manual inspection by using multi-sensor collaborative monitoring (temperature / liquid level / pressure / CO concentration) and local data processing of an analog quantity acquisition unit. It achieves the technical effect of real-time full parameter acquisition and abnormal data pre-filtering, greatly improves the monitoring accuracy (such as liquid level error ≤ ±1%, CO detection response time < 10s), and provides a high-quality data foundation for subsequent remote analysis.

[0030] 3. The gas water seal remote operation monitoring system with temperature control function provided by this utility model solves the problems of difficult wired networking and high wiring costs of water seal equipment in remote or high-risk areas through a 4G / 5G DTU wireless communication module, achieving the technical effect of low data latency (<1s) remote transmission, and realizing full coverage management of distributed water seal terminals by the monitoring center.

[0031] 4. This utility model provides a remote operation monitoring system for gas water seals with temperature control function. Through the visualization data storage, analysis and alarm functions of the monitoring center (PC / mobile dual-terminal linkage), it solves the problems of traditional management methods relying on experience judgment and slow fault response. It achieves the technical effects of intelligent analysis of operation trends (such as predicting freezing risk based on historical data) and automatic graded alarm of anomalies (SMS / audio-visual). This allows maintenance personnel to remotely and quickly locate fault points (such as accurately identifying the failure of the drain pipe heat tracing), improving operation and maintenance efficiency by more than 70%.

[0032] 5. This utility model solves the pain point of the single function of the existing technology through system-level integrated design (temperature control-sensing-communication-back-end linkage), and achieves the technical effect of full-chain automation of water seal equipment "anti-freeze-monitoring-transmission-decision", which significantly reduces the frequency of manual intervention and ensures the safe operation of the gas transmission and distribution system throughout the year.

[0033] Based on the above reasons, this utility model can be widely promoted in fields such as gas water seal monitoring. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a block diagram of the system structure of this utility model.

[0036] Figure 2 This is the circuit schematic diagram of the system of this utility model. Detailed Implementation

[0037] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0042] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0043] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0044] like Figure 1 , 2 As shown, this utility model provides a remote operation monitoring system for a gas water seal with temperature control function, including: a water seal tank, a drain pipe and a discharge pipe, and further including: a temperature control module, a sensor module, an analog quantity acquisition unit, a communication module and a monitoring center, wherein:

[0045] The temperature control module consists of a temperature sensor, a temperature controller, a heat tracing power switch, and electric heat tracing tapes laid on the outer walls of the drain pipe, the drain drain pipe, and the side walls of the water seal tank. The temperature controller is fixed outside the water seal tank and near the inlet of the drain pipe. Its input end is connected to the temperature sensor, and its output end is connected to the heat tracing power switch through an electrical circuit. The output end of the heat tracing power switch is divided into three paths, which are respectively connected to the electric heat tracing tapes of the drain pipe, the drain drain pipe, and the water seal tank.

[0046] The sensor module, installed on the water seal tank and pipeline, includes a temperature transmitter, a level transmitter, a pressure transmitter, and a carbon monoxide detector, used to monitor the temperature, level, pressure, and gas concentration parameters of the water seal system in real time.

[0047] The analog signal acquisition unit is connected to the sensor module and is used to receive and process the analog signals output by the temperature control module and the sensor module, and to perform local data analysis.

[0048] The communication module adopts a 4G / 5G DTU wireless transmission method and is connected to the analog quantity acquisition unit to remotely transmit the acquired data to the monitoring center.

[0049] The monitoring center includes PC and mobile terminals, which are used to display the operating status and parameters of the water seal in real time, store and analyze data, generate visual reports, and trigger alarms when abnormalities occur.

[0050] In a specific implementation, as a preferred embodiment of this utility model, multiple temperature transmitters are provided, wherein at least one temperature transmitter is installed on the outer wall of the water seal tank for monitoring the ambient temperature; at least one temperature transmitter is installed on the wall of the drain pipe or discharge pipe for monitoring the liquid temperature inside the pipe; the temperature transmitters are connected to the analog input terminals of the analog quantity acquisition unit via shielded cables or RS485 buses.

[0051] In a preferred embodiment of this utility model, the level transmitter is installed using a flange or thread and fixed to the top or side wall of the water seal tank, with the probe extending into the liquid; or a non-contact ultrasonic sensor is used and installed on the top of the tank directly facing the liquid surface; the level transmitter is connected to the dedicated level acquisition channel of the analog quantity acquisition machine via a two-wire / four-wire wiring method.

[0052] In a specific implementation, as a preferred embodiment of this utility model, multiple pressure transmitters are provided, wherein at least one pressure transmitter is located at the top of the gas phase space of the water seal barrel for monitoring gas pressure; at least one pressure transmitter is installed upstream of the valve of the drain pipe for monitoring the fluid pressure in the pipeline; the pressure transmitters are connected to the DC24V power supply terminal and analog input terminal of the analog quantity acquisition unit via a three-wire system.

[0053] In a preferred embodiment of this invention, the carbon monoxide detector is positioned near the exhaust port or inside the inspection port of the water-sealed tank to detect the concentration of leaked coal gas; it outputs a 4-20mA+HART signal to an analog signal acquisition unit. Upon triggering an alarm, it simultaneously activates an audible and visual alarm and sends an SMS notification to the monitoring center.

[0054] In a preferred embodiment of this utility model, the analog signal acquisition unit is wall-mounted or mounted on a rail within an explosion-proof box within 2 meters of a water-sealed tank. It includes: a main control module, an analog input module, a communication interface, a power supply module, and an expansion module, wherein:

[0055] The main control module uses an ARM Cortex-M7 or an industrial-grade PLC, runs a real-time operating system (such as FreeRTOS), and supports multi-task scheduling.

[0056] The analog input module includes an 8-channel 16-bit high-precision ADC, supporting 4-20mA / 0-10V signal input, with a sampling rate ≥1kHz;

[0057] The communication interface integrates RS485 (for sensor bus), Ethernet (for local debugging) and wireless module interface (for connecting 4G / 5G DTU).

[0058] The power module has a DC24V wide voltage input and built-in surge protection and isolation circuits.

[0059] The expansion module is connected to an external digital I / O module for controlling relays or valves.

[0060] In this embodiment, the analog signal acquisition unit performs RC low-pass filtering and moving average / median filtering on the original sensor signal, and provides a disconnection detection function. When the sensor signal is missing, an alarm is triggered (such as outputting an abnormal value of 22mA). Preset judgment logic (such as starting the water supply valve when the liquid level is <300mm, and closing the gas inlet when the CO concentration is >50ppm) is set, and control signals are output to the temperature control module or relay, with a response time ≤100ms.

[0061] like Figure 2 The diagram shown is a circuit diagram of the gas water seal remote operation monitoring system with temperature control function of this utility model. The terminal distribution inside the box from left to right is shown in the table below:

[0062]

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coal gas water seal remote operation monitoring system with temperature control function, comprising: The water seal tank, drain pipe, and spillway pipe are characterized by further comprising: a temperature control module, a sensor module, an analog quantity acquisition unit, a communication module, and a monitoring center, wherein: The temperature control module consists of a temperature sensor, a temperature controller, a heat tracing power switch, and electric heat tracing tapes laid on the outer walls of the drain pipe, the drain drain pipe, and the side walls of the water seal tank. The temperature controller is fixed outside the water seal tank and near the inlet of the drain pipe. Its input end is connected to the temperature sensor, and its output end is connected to the heat tracing power switch through an electrical circuit. The output end of the heat tracing power switch is divided into three paths, which are respectively connected to the electric heat tracing tapes of the drain pipe, the drain drain pipe, and the water seal tank. The sensor module, installed on the water seal tank and pipeline, includes a temperature transmitter, a level transmitter, a pressure transmitter, and a carbon monoxide detector, used to monitor the temperature, level, pressure, and gas concentration parameters of the water seal system in real time. The analog signal acquisition unit is connected to the temperature control module and the sensor module, and is used to receive and process the analog signals output by the temperature control module and the sensor module, and to perform local data analysis. The communication module adopts a 4G / 5G DTU wireless transmission method and is connected to the analog quantity acquisition unit to remotely transmit the acquired data to the monitoring center. The monitoring center includes PC and mobile terminals, which are used to display the operating status and parameters of the water seal in real time, store and analyze data, generate visual reports, and trigger alarms when abnormalities occur.

2. The remote operation monitoring system for coal gas water seal with temperature control function according to claim 1, characterized in that, Multiple temperature transmitters are provided, including one temperature transmitter installed on the outer wall of the water seal tank for monitoring the ambient temperature; another temperature transmitter installed on the wall of the drain pipe or spillway for monitoring the liquid temperature inside the pipe; the temperature transmitters are connected to the analog input terminals of the analog signal acquisition unit via shielded cables or RS485 bus.

3. The remote monitoring system for coal gas water seal with temperature control function according to claim 1, characterized in that, The level transmitter is installed using a flange or thread, and is fixed to the top or side wall of the water seal tank, with the probe extending into the liquid; or a non-contact ultrasonic sensor is used, installed on the top of the tank directly facing the liquid surface; the level transmitter is connected to the dedicated level acquisition channel of the analog quantity acquisition machine through a two-wire / four-wire wiring method.

4. The remote monitoring system for coal gas water seal with temperature control function according to claim 1, characterized in that, Multiple pressure transmitters are provided. One pressure transmitter is located at the top of the gas phase space of the water seal barrel to monitor the gas pressure. Another pressure transmitter is installed upstream of the valve on the drain pipe to monitor the fluid pressure in the pipeline. The pressure transmitters are connected to the DC24V power supply terminal and analog input terminal of the analog quantity acquisition unit via a three-wire system.

5. A remote operation monitoring system for gas water seal with temperature control function according to claim 1, characterized in that, The carbon monoxide detector is placed near the exhaust port of the water seal tank or inside the inspection port to detect the concentration of leaked coal gas; it outputs the signal to the analog quantity acquisition unit via a 4-20mA+HART protocol.

6. The remote monitoring system for coal gas water seal with temperature control function according to claim 1, characterized in that, The analog signal acquisition unit is wall-mounted or mounted on a rail within an explosion-proof box within 2 meters of a water-sealed tank. It includes: a main control module, an analog input module, a communication interface, a power supply module, and an expansion module. The main control module uses an ARM Cortex-M7 or an industrial-grade PLC, runs a real-time operating system, and supports multi-task scheduling. The analog input module includes an 8-channel 16-bit high-precision ADC, supporting 4-20mA / 0-10V signal input, with a sampling rate ≥1kHz; The communication interface integrates RS485, Ethernet, and wireless module interfaces; The power module has a DC24V wide voltage input and built-in surge protection and isolation circuits. The expansion module is connected to an external digital I / O module for controlling relays or valves.

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