Pressure detection device for isobutane / n-butane raw material storage tank

Abstract

The utility model discloses a pressure detection device for an isobutane / n-butane raw material storage tank. The pressure detection device comprises a pressure detection unit, a signal processing module, a central control module, a display module, an alarm module and a protection module. The pressure detection unit adopts a main / standby piezoresistive pressure sensor and is installed at the top of the storage tank through a sealing joint, and an independent shielding signal line is sleeved with a metal corrugated pipe to prevent electromagnetic interference and mechanical damage. The signal processing module integrates signal amplification, filtering and analog-to-digital conversion functions and transmits processed data to the central control module. A microcontroller is arranged in the central control module, a pressure threshold value is preset, the main sensor and the standby sensor can be automatically switched, and encrypted data can be stored. The display module displays a pressure value and a curve in real time, and the alarm module realizes multi-level early warning through sound-light alarm and short message notification. Through double-sensor redundancy design, signal anti-interference processing, intelligent fault switching and multiple alarm mechanisms, the precision, stability and safety of pressure detection are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical raw material storage equipment, and more specifically, to a pressure detection device for isobutane / n-butane raw material storage tanks. Background Technology

[0002] Iso / n-butane has wide applications in chemical production and energy supply. Due to its flammable and explosive properties, accurate monitoring of its storage pressure is crucial during storage. Currently, traditional pressure detection devices are commonly used for pressure monitoring of iso / n-butane feedstock storage tanks.

[0003] However, traditional pressure detection devices have several shortcomings. Firstly, their detection accuracy is limited, making it difficult to accurately capture minute changes in pressure within the storage tank, potentially leading to the failure to detect some potential pressure anomalies in a timely manner. Secondly, traditional devices have poor stability and are easily affected by external environmental factors (such as temperature, humidity, and vibration) during long-term use, resulting in inaccurate or highly fluctuating detection data. Furthermore, traditional devices lack effective fault warning and protection mechanisms; once a malfunction occurs, the inability to issue alarms and take corresponding measures promptly may pose serious risks to the safe operation of the storage tank.

[0004] Therefore, in order to improve the accuracy, stability and safety of pressure detection in isobutane / n-butane feedstock storage tanks, it is necessary to develop a new type of pressure detection device. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies and to propose a pressure detection device for iso / n-butane feedstock storage tanks, comprising:

[0006] Pressure detection unit: This unit includes a main pressure sensor and a backup pressure sensor, both installed on top of the iso / n-butane feedstock storage tank via sealed joints and connected to the tank's interior. Both the main and backup pressure sensors are high-precision, high-stability piezoresistive pressure sensors, capable of accurately measuring pressure changes within the tank. Each sensor is connected to the signal processing module via independent shielded signal lines, which are sheathed in a metal bellows to prevent external electromagnetic interference and mechanical damage.

[0007] Signal processing module: Installed in a protective enclosure near the storage tank, it contains a signal amplifier, filter, and A / D converter. The signal amplifier amplifies the weak electrical signals from the main and backup pressure sensors, the filter removes interference from the amplified signals, and the A / D converter converts the analog signals into digital signals for subsequent processing and analysis. The signal processing module connects to the central control module via a data cable, transmitting the processed digital signals to the central control module.

[0008] Central Control Module: Installed in the control room, this module employs a high-performance microcontroller. The microcontroller receives pressure data from the signal processing module and analyzes and processes it. The central control module is pre-set with normal pressure ranges and abnormal pressure thresholds. When the pressure value reported by the main pressure sensor exceeds the normal pressure range, the microcontroller first determines whether the main pressure sensor is functioning correctly. If the main pressure sensor malfunctions, the microcontroller automatically switches to monitoring data from the backup pressure sensor. Simultaneously, the central control module is also connected to a data storage module to store pressure detection data for easy retrieval and analysis later.

[0009] Display Module: Connected to the central control module, it is installed on the control panel in the control room. The display module uses an LCD screen to display the pressure value inside the tank, pressure change curves, and information from the currently used pressure sensors in real time. Operators can intuitively understand the pressure status inside the tank through the display module.

[0010] Alarm Module: Connected to the central control module, this module includes an audible and visual alarm and an SMS alarm. When the central control module determines that the pressure inside the storage tank exceeds a preset abnormal pressure threshold, the audible and visual alarm will emit a high-decibel sound and flashing lights to alert operators to take immediate action. Simultaneously, the SMS alarm will send pressure anomaly information to a designated manager's mobile phone, ensuring that management personnel are promptly informed of any pressure anomalies even when operators are not present.

[0011] Protection Module: Both the main pressure sensor and the backup pressure sensor are equipped with protective housings made of stainless steel, offering excellent corrosion resistance and pressure resistance. The housings include ventilation and drainage holes to ensure the sensors operate in a suitable environment. The signal processing module is housed in a sealed enclosure containing a desiccant and a temperature controller, effectively preventing moisture and temperature fluctuations from affecting the module.

[0012] Furthermore, the sealing joint adopts a threaded connection and a sealing ring seal to ensure a reliable connection between the pressure sensor and the storage tank, preventing leakage of iso / n-butane.

[0013] Furthermore, the two ends of the metal bellows are fixedly connected to the shielded signal line, pressure sensor, and signal processing module by clamps to ensure the strength and stability of the connection.

[0014] Furthermore, the data storage module uses a large-capacity solid-state drive, which can store long-term stress detection data, and the data storage is encrypted to ensure data security.

[0015] Furthermore, the sound frequency and light flashing frequency of the audible and visual alarm can be adjusted through the central control module to adapt to different working environments and the needs of operators.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] 1. High-precision detection: Employing a high-precision piezoresistive pressure sensor and signal processing module, it can accurately measure pressure changes inside the storage tank and promptly detect minute pressure anomalies.

[0018] 2. High stability: By using shielded signal lines, metal corrugated pipes, and protective modules, the influence of external environmental factors on the detection device is effectively reduced, ensuring the stability of the detection data.

[0019] 3. Fault warning and protection: The device is equipped with a main and backup pressure sensor and multiple alarm mechanisms. It can automatically switch when the main sensor fails and issue an alarm in time when the pressure is abnormal. At the same time, the protection module effectively protects the device, improving the reliability and safety of the device.

[0020] 4. Data storage and analysis: The data storage module can store long-term pressure detection data, which facilitates subsequent querying and analysis and helps to monitor and evaluate the pressure status of the storage tank over a long period of time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a pressure detection device for iso / n-butane feedstock storage tanks according to the present invention;

[0022] Figure 2 This is a block diagram of the internal structure of the signal processing module in this utility model;

[0023] Figure 3 This is a flowchart of the central control module in this utility model.

[0024] In the picture:

[0025] 1-Iso / n-Butane feedstock storage tank; 2-Main pressure sensor; 3-Backup pressure sensor; 4-Sealed joint; 5-Shielded signal line; 6-Metal bellows; 7-Signal processing module; 71-Signal amplifier; 72-Filter; 73-A / D converter; 8-Central control module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] This embodiment provides a pressure detection device for iso / n-butane feedstock storage tanks, such as... Figure 1 As shown, a main pressure sensor 2 and a backup pressure sensor 3 are installed on the top of the iso / n-butane feedstock storage tank 1 via a sealing joint 4. The sealing joint 4 uses a threaded connection and a sealing ring to ensure a tight and leak-free connection between the sensor and the storage tank. The main pressure sensor 2 and the backup pressure sensor 3 are respectively connected to the signal processing module 7 via shielded signal lines 5. The shielded signal lines 5 are covered by a metal bellows 6, and both ends of the metal bellows are fixedly connected to the shielded signal lines 5, the pressure sensors, and the signal processing module 7 via clamps.

[0028] The signal processing module 7 is installed inside the protective enclosure 112 near the storage tank. For example... Figure 2 As shown, the signal processing module 7 internally includes a signal amplifier 71, a filter 72, and an A / D converter 73. The pressure signals detected by the main pressure sensor 2 and the backup pressure sensor 3 are first transmitted to the signal amplifier 71 for amplification. The amplified signals are then filtered by the filter 72 to remove interference signals, and then converted into digital signals by the A / D converter 73. The processed digital signals are transmitted to the central control module 8 via a data cable or wireless transmission.

[0029] The central control module 8 is installed in the control room. For example... Figure 3 As shown, the microcontroller in the central control module 8 receives pressure data from the signal processing module 7 and compares it with the preset normal pressure range and pressure anomaly threshold. When the pressure value fed back by the main pressure sensor 2 exceeds the normal pressure range, the microcontroller first determines the operating status of the main pressure sensor 2. If the main pressure sensor 2 malfunctions, the microcontroller automatically switches to monitoring the data from the backup pressure sensor 3. Simultaneously, the central control module 8 stores the pressure data in the data storage module.

[0030] The display module is mounted on the control panel in the control room and connected to the central control module 8. The display module uses an LCD screen to show the pressure value inside the tank, the pressure change curve, and the information from the currently used pressure sensor in real time. Operators can intuitively understand the pressure status inside the tank by observing the display module.

[0031] The alarm module is connected to the central control module. When the central control module determines that the pressure inside the storage tank exceeds the preset abnormal pressure threshold, the audible and visual alarm will emit a high-decibel sound and flashing lights to alert the operators to take immediate action. Simultaneously, the SMS alarm will send the abnormal pressure information to a pre-set mobile phone number for designated management personnel.

[0032] The protection module safeguards the pressure sensor and signal processing module. The main and backup pressure sensors are encased in stainless steel housings with ventilation and drainage holes. The protective enclosure is sealed and contains a desiccant and temperature controller to ensure the signal processing module operates in a stable environment.

[0033] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.

[0034] Furthermore, it should be understood in the description of this utility model that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0035] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A pressure detection device for iso / n-butane feedstock storage tanks, characterized in that, The application relates to a pressure detection device for a butane raw material storage tank. The pressure detection device comprises a pressure detection unit, a signal processing module, a central control module, a display module and an alarm module. The pressure detection unit comprises a main pressure sensor and a standby pressure sensor, both of which are installed on the top of an iso / n-butane raw material storage tank through sealing joints and are connected with the inside of the storage tank, are connected with a signal processing module through independent shield signal lines, and are provided with metal bellows. The signal processing module is installed in a protection box close to the storage tank, is internally provided with a signal amplifier, a filter and an A / D converter, is used for amplifying, filtering and converting the signals transmitted by the pressure sensor, and is connected with the central control module through a data line. The central control module is installed in a control room, adopts a high-performance microcontroller, receives the pressure data transmitted by the signal processing module, performs analysis and processing, is internally provided with a normal pressure range and a pressure abnormal threshold, can judge the working state of the sensor and automatically switches the standby sensor, and is further connected with a data storage module. The display module is connected with the central control module, is installed on an operation table in the control room, adopts a liquid crystal display screen, and is used for displaying the pressure value in the storage tank, a pressure change curve and the information of the currently-used pressure sensor in real time. The alarm module is connected with the central control module, comprises an audible and light alarm and a short message alarm, and issues an alarm when the pressure in the storage tank exceeds the preset pressure abnormal threshold.

2. The pressure detecting device for an iso / n-butane raw material tank according to claim 1, characterized by The protection module is externally provided with a protection shell for the main pressure sensor and the standby pressure sensor, the protection shell is made of stainless steel, is provided with heat dissipation holes and drainage holes, the protection box is designed to be sealed, is internally provided with a moisture-proof agent and a temperature controller.

3. The pressure detecting device for an iso / n-butane raw material tank according to claim 1, characterized by The sealing joint adopts a threaded connection and sealing rubber ring sealing mode.

4. The pressure detecting device for an iso / n-butane raw material tank according to claim 1, characterized by The two ends of the metal bellows are fixedly connected with the shield signal line, the pressure sensor and the signal processing module through clamps.

5. The pressure detecting device for an iso / n-butane raw material tank according to claim 1, characterized by The data storage module adopts a large-capacity solid state disk, and data storage adopts an encryption mode. The sound frequency and light flickering frequency of the audible and light alarm can be adjusted through the central control module.

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