Tank expansion bellows running safety monitoring system based on fracture alarm

Abstract

The application discloses a kind of based on rupture alarm's storage tank telescopic bladder cover operation safety monitoring system, including telescopic bladder cover, optical fiber sensor, rupture alarm type optical fiber, demodulator, network cable and central control equipment, the rupture alarm type optical fiber is embedded in the inside of telescopic bladder cover in spiral shape, the optical fiber sensor is used to sense tension change and transmit optical signal, the demodulator is used to collect the optical signal returned by optical fiber sensor, and the optical signal is demodulated into digital signal after being transmitted to central control equipment by network cable, the central control equipment is used to receive signal and with alarm function.The application belongs to the technical field of floating disc telescopic bladder cover operation safety monitoring system, specifically provides a kind of based on rupture alarm's storage tank telescopic bladder cover operation safety monitoring system, which ensures that the running state of telescopic bladder cover is completely stable and timely transmitted, and alarm signal is formed.

Description

Technical Field

[0001] This invention belongs to the technical field of operational safety monitoring systems for the telescopic bladder on floating roofs, specifically referring to an operational safety monitoring system for the telescopic bladder of a storage tank based on a fracture alarm. Background Technology

[0002] In traditional floating roof operation, when the support column passes through the opening in the side wall of the device, the only way to prevent oil and gas from escaping outward from the opening is to install a telescopic sleeve. However, during long-term operation, it has been found that the sleeve has fallen off or torn, which not only causes leakage of organic pollutants, but may also cause the floating roof to jam, resulting in the risk of jamming and deflection.

[0003] In the traditional mode, it is very difficult to inspect the telescopic bladder. It requires many on-site conditions, such as dangerous operations like climbing the tank and certain requirements for the gas concentration inside the tank. Inspection can only be carried out when these conditions are met. However, it has the obvious disadvantage of not being able to inspect in a timely manner, and manual inspection has the drawback of large errors in the inspection results.

[0004] We are now developing a monitoring system for the telescopic bladder sheath. This system can provide real-time feedback on whether the sheath has detached from the support column and whether there is any tear in the middle of the sheath. The system will send the feedback to the central control room in real time and will trigger an alarm as soon as any abnormality is detected, ensuring that abnormal information is transmitted to the central control room in a timely and accurate manner. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a storage tank telescopic bladder operation safety monitoring system based on fracture alarm, which ensures the complete, stable and timely transmission of the operating status of the telescopic bladder and generates an alarm signal.

[0006] The technical solution adopted by this invention is as follows: This invention provides a safety monitoring system for the operation of a storage tank expansion sleeve based on a breakage alarm, comprising an expansion sleeve, an optical fiber sensor, a breakage alarm optical fiber, a demodulator, a network cable, and a central control device. The breakage alarm optical fiber is spirally embedded inside the expansion sleeve. The optical fiber sensor is used to sense changes in tension and transmit optical signals. The demodulator is used to collect the optical signals returned by the optical fiber sensor, demodulate the optical signals into digital signals, and transmit them to the central control device via the network cable. The central control device is used to receive signals and has an alarm effect.

[0007] Furthermore, the fiber optic sensor includes a transmission fiber, a support, and a tension sensor sensing element, which are connected in sequence. The tension sensor sensing element is a signal acquisition device for sensing changes in tension. The support is used to fix the tension sensor. The measured tension is the tension between the two supports. The transmission fiber is a signal transmission medium that introduces the optical signal into the tension sensor. The reflected light is transmitted to the demodulator.

[0008] As a further explanation, during the processing of the telescopic sleeve, a breakage alarm fiber is embedded in the sleeve material to detect breakage problems that occur during the operation of the sleeve, preventing chuck misalignment or even greater mechanical damage due to untimely detection of sleeve breakage.

[0009] Furthermore, a support column is provided on one side of the storage tank. If there are openings in the side wall of the support column, a telescopic sleeve needs to be installed to prevent further leakage of oil and gas. The telescopic sleeve is fixed to the support column by a fixing clamp.

[0010] As a preferred embodiment, the central control device includes a networked computer and an alarm. The networked computer is equipped with a computer display screen for displaying and editing the interface to achieve human-computer interaction. The alarm is used to receive alarm signals and send alarm signals to the staff in the central control room.

[0011] As another possible interpretation, the demodulator is a configurable multi-channel demodulator that can be selected arbitrarily according to different operating conditions.

[0012] In the preferred embodiment, the fiber optic sensor is a fiber optic grating tension sensor, which not only ensures accuracy but also avoids the electrical spark ignition problem caused by traditional electronic sensors because the signal transmission relies solely on optical signal propagation.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: This solution is a storage tank expansion sleeve operation safety monitoring system based on fracture alarm, which ensures that the operation status of the expansion sleeve is transmitted completely stably and in a timely manner, and generates an alarm signal. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a storage tank expansion sleeve operation safety monitoring system based on fracture alarm provided in this solution;

[0015] Figure 2 This is a schematic diagram of the structure of the telescopic bladder sleeve with built-in burst alarm optical fiber in this solution;

[0016] Figure 3 for Figure 2 Enlarged view of the cross-sectional interface in the AA section;

[0017] Figure 4 This is a schematic diagram of the structure of the tension sensor in this scheme.

[0018] Among them, 1. Telescopic bladder sleeve, 2. Fiber optic sensor, 3. Fracture alarm fiber optic cable, 4. Demodulator, 5. Network cable, 6. Central control equipment, 7. Alarm, 8. Fiber optic cable, 9. Support, 10. Tension sensor sensing element, 11. Support column, 12. Fixing clamp.

[0019] in addition, Figure 3 In the figure, 'a' represents the cross-section of the built-in optical fiber.

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, the present invention discloses a tank expansion sleeve operation safety monitoring system based on fracture alarm, comprising an expansion sleeve 1, an optical fiber sensor 2, a fracture alarm optical fiber 3, a demodulator 4, a network cable 5, and a central control device 6. The fracture alarm optical fiber 3 is spirally embedded inside the expansion sleeve 1. The optical fiber sensor 2 is used to sense changes in tension and transmit optical signals. The demodulator 4 is used to collect the optical signals transmitted back by the optical fiber sensor 2, demodulate the optical signals into digital signals, and transmit them to the central control device 6 via the network cable 5. The central control device 6 is used to receive signals and has an alarm effect.

[0023] Furthermore, the fiber optic sensor 2 includes a transmission fiber 8, a support 9, and a tension sensor sensing element. The transmission fiber 8, the support 9, and the tension sensor sensing element are connected in sequence. The tension sensor sensing element is a signal acquisition device used to sense changes in tension. The support 9 is used to fix the tension sensor. The measured tension is the tension between the two supports 9. The transmission fiber 8 is a signal transmission medium that introduces the optical signal into the tension sensor. The reflected light is transmitted to the demodulator 4. The demodulator 4 is a configurable multi-channel demodulator 4 that can be selected arbitrarily according to different working conditions.

[0024] As a further explanation, during the processing of the telescopic sleeve 1, a fracture alarm fiber optic cable 3 is embedded in the material of the sleeve to detect fracture problems that occur during the operation of the sleeve, preventing chuck misalignment or even greater mechanical damage due to untimely detection of sleeve fracture.

[0025] Furthermore, a support column 11 is provided on one side of the storage tank. If there are openings in the side wall of the support column 11, a telescopic bladder sleeve 1 needs to be installed to prevent further leakage of oil and gas. The telescopic bladder sleeve 1 is fixed to the support column 11 by a fixing clamp 12.

[0026] As a preferred option, the central control device 6 includes a networked computer and an alarm 7. The networked computer is equipped with a computer display screen for displaying and editing the interface to achieve human-computer interaction. The alarm 7 is used to receive alarm signals and send alarm signals to the staff in the central control room.

[0027] In the preferred embodiment, the fiber optic sensor 2 adopts an 8-fiber grating tension sensor, which not only ensures accuracy, but also avoids the problem of electrical spark ignition caused by traditional electronic sensors because the signal transmission relies solely on optical signal propagation.

[0028] In the initial state, the demodulator 4 is connected to the tensile sensor sensing element through the transmission optical fiber 8 and to the central control device 6 (computer) through the network cable 5. The demodulator 4 emits the initial incident light, which is transmitted to the tensile sensor sensing element through the transmission optical fiber 8, and is normally reflected and transmitted back to the demodulator 4 through the transmission optical fiber 8.

[0029] In practical use, when the telescopic sleeve 1 detaches, the fiber optic grating tension sensor will be subjected to a tensile force. Under stress, the grating pitch will change. While the incident light remains constant, the wavelength of the reflected light will change. This optical signal is reflected back to the demodulator 4 via the transmission fiber 8. The demodulator 4 uses a preset program (this part of the program is existing technology) to identify the difference before and after detachment and calculate the difference value, storing the information in the demodulator 4. The identified signal is then converted into a tensile force value via the network cable 5. When the tensile force value exceeds the set value, it is considered that detachment has occurred. Along with the output of the tensile force value, the computer will issue an alarm signal, connecting to the alarm device in the central control room to sound an alarm. If the telescopic sleeve 1 breaks, the fracture alarm fiber optic 3 embedded in the telescopic sleeve 1 will break, and the alarm device will directly issue an alarm signal. The overall structure is as follows: Figure 1 As shown.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A storage tank expansion sleeve operation safety monitoring system based on fracture alarm, characterized in that: The device includes a telescopic sleeve, a fiber optic sensor, a break alarm fiber optic cable, a demodulator, a network cable, and a central control device. The break alarm fiber optic cable is spirally embedded inside the telescopic sleeve. The fiber optic sensor is used to sense changes in tension and transmit optical signals. The demodulator is used to collect the optical signals transmitted by the fiber optic sensor, demodulate the optical signals into digital signals, and transmit them to the central control device via the network cable. The central control device is used to receive signals and has an alarm function. The fiber optic sensor includes a transmission fiber, a support, and a tension sensor sensing element. The transmission fiber, the support, and the tension sensor sensing element are connected in sequence. The tension sensor sensing element is a signal acquisition device for sensing changes in tension. The support is used to fix the tension sensor. The measured tension is the tension between the two supports. The transmission fiber is a signal transmission medium that introduces the optical signal into the tension sensor and transmits the reflected light to the demodulator. During the manufacturing of the telescopic bladder, a breakage alarm fiber is embedded in the material of the telescopic bladder to detect breakage problems that occur during the operation of the telescopic bladder.

2. The tank expansion sleeve operation safety monitoring system based on fracture alarm as described in claim 1, characterized in that: The storage tank is provided with a support column on one side, and the telescopic bladder sleeve is fixed to the support column by a fixing clamp.

3. The storage tank expansion sleeve operation safety monitoring system based on fracture alarm as described in claim 2, characterized in that: The central control device includes a networked computer and an alarm. The networked computer is equipped with a computer display screen for displaying and editing the interface to achieve human-computer interaction. The alarm is used to receive alarm signals and send alarm signals to the staff in the central control room.

4. The tank expansion sleeve operation safety monitoring system based on fracture alarm as described in claim 1, characterized in that: The demodulator is a configurable demodulator with multiple selectable channels.

5. The storage tank expansion sleeve operation safety monitoring system based on fracture alarm as described in claim 1, characterized in that: The fiber optic sensor is a fiber optic grating tension sensor.

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