Fluid leakage emergency alarm device

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a fluid leakage emergency alarm device. Comprising a TPU bag, the TPU bag wraps the outer side of a pipeline flange in a sealed mode, a first electrode plate is arranged on the outer surface of the TPU bag, a PVC protective cover is arranged on the outer side of the TPU bag, a second electrode plate is arranged on the inner side of the PVC protective cover and at the position opposite to the first electrode plate, a pressure sensor is arranged in the TPU bag, and the air exhaust pipeline is communicated with the interior of the TPU bag in a sealed mode. By adopting the TPU bag and combining a dual alarm mechanism of electrode slice attachment and the pressure sensor, real-time monitoring and quick response of fluid leakage are realized, the sensitivity and speed of leakage detection are remarkably improved, an alarm is given out at the initial stage of leakage, a control system is linked to restrain leakage, and serious accidents are effectively prevented. Meanwhile, the device has wide applicability, can ensure high reliability and stability of the device in a severe environment, and is particularly suitable for high-risk connection points in the petrochemical industry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection device, more particularly to fluid leakage emergency alarm device. BACKGROUND

[0002] In petrochemical enterprises, production and storage links involve a large number of flammable and explosive liquid and gas hazardous chemicals, these substances are usually handled under high temperature and high pressure, this special environmental condition makes the risk of leakage, fire and explosion and other safety accidents significantly increased.

[0003] In order to effectively monitor and prevent the leakage of these dangerous chemicals, petrochemical enterprises traditionally rely on gas alarms to detect the presence of flammable and toxic gases. However, although these alarms can provide a certain degree of safety warning, their working principle determines that there is a certain lag in their response. Specifically, when a leak occurs, the gas needs a certain time to diffuse to the probe of the alarm and accumulate to a concentration value sufficient to trigger an alarm. During this period, the leakage may have developed to a more serious degree, increasing the likelihood of an accident.

[0004] In addition, the leakage gas and liquid in petrochemical enterprises often have the characteristics of high temperature and high pressure, flammable and explosive. In the process of leakage, these substances are once contacted with static electricity, open flame or high temperature environment, and are extremely easy to cause fire or explosion accident. This high-risk environmental condition poses a severe challenge to traditional gas alarms, because traditional alarms often have difficulty maintaining high efficiency and accurate monitoring performance in such extreme environments.

[0005] In summary, the existing gas alarm has certain limitations in the application of petrochemical enterprises, especially when facing high temperature and high pressure, flammable and explosive leakage substances, its lag and reliability problems are particularly prominent. Therefore, it is necessary to develop a more advanced and reliable fluid leakage emergency alarm device to realize real-time monitoring and rapid response to the leakage of dangerous chemicals in petrochemical enterprises, so as to improve the level of safety production. UTILITY MODEL CONTENT

[0006] According to the deficiencies in the above prior art, the purpose of the utility model is to provide a fluid leakage emergency alarm device, which realizes real-time monitoring and rapid response of fluid leakage by adopting oil-resistant, heat-resistant and pressure-resistant TPU bag, combining electrode sheet and pressure sensor double alarm mechanism. The device is easy to install, reacts quickly and has low cost, can significantly improve the sensitivity and speed of leakage detection, sends an alarm at the early stage of leakage and links the control system to suppress leakage, effectively prevents the occurrence of malignant accidents. At the same time, its wide applicability and double protection structure ensure the high reliability and stability of the device in harsh environments, especially suitable for high-risk connection points in the petrochemical industry.

[0007] The utility model is realized by adopting the following technical solutions:

[0008] The fluid leakage emergency alarm device includes a TPU bag, which is sealed and covered on the outside of the pipe flange. A first electrode sheet is provided on the outer surface of the TPU bag, a PVC protective cover is provided on the outside of the TPU bag, and a second electrode sheet is provided on the inside of the PVC protective cover, opposite to the first electrode sheet. A pressure sensor is provided inside the TPU bag, and also includes an exhaust pipe sealed and connected to the inside of the TPU bag.

[0009] An elastic sealing ring is provided at the connection between the TPU bag and the pipeline flange.

[0010] The air extraction pipeline is provided with a check valve.

[0011] The fluid leakage emergency alarm device also includes an audible and visual alarm device.

[0012] The fluid leakage emergency alarm device also includes a backup power supply.

[0013] The fluid leakage emergency alarm device further includes a control system, which is electrically connected to the first electrode sheet, the second electrode sheet, the pressure sensor, the sound and light alarm device, and the backup power supply.

[0014] The working principle of the fluid leakage emergency alarm device is as follows:

[0015] The TPU bladder is a sheet-like device that is sealed around the outside of a pipe flange and heat-sealed to prevent rupture in the event of a fluid leak. An elastic sealing ring is then installed at the joint to further ensure a tight seal between the TPU bladder and the pipe flange. After installation, the gas within the TPU bladder is extracted through an exhaust pipe. A check valve prevents backflow of gas and external gas or liquid from entering the bladder, ensuring the stability of the internal environment and accurate detection. After extraction, a PVC protective cover is installed on the outside of the TPU bladder to provide an additional layer of protection from external physical damage.

[0016] When a fluid leak occurs at the pipe flange connection, the leaked fluid will flow into the TPU bladder, causing the bladder to expand. As the bladder expands, the first electrode sheet set on the outer surface of the TPU bladder and the second electrode sheet on the inner side of the PVC protective cover gradually approach and eventually fit together, thereby triggering the circuit between the electrode sheets to be connected and emitting an audible and visual alarm signal. Among them, the first electrode sheet and the second electrode sheet are both explosion-proof electrode sheets. They can maintain their electrical performance and structural integrity when exposed to fluids or gases that may cause explosions, effectively preventing explosion accidents caused by electric sparks or arcs. At the same time, the pressure sensor inside the TPU bladder will also monitor the pressure changes in the bladder in real time. When the pressure reaches the preset threshold, it will also issue an alarm signal.

[0017] These alarm signals are received and processed by a control system, which is electrically connected to the first and second electrode sheets, pressure sensors, audible and visual alarm devices, and the backup power supply. Upon receiving the alarm signal, the control system immediately issues emergency response instructions, such as shutting down relevant processes to prevent further leaks. Simultaneously, the audible and visual alarm devices emit distinct audible and visual signals, alerting on-site operators to take emergency measures. Throughout the alarm process, the backup power supply provides stable power to the device, ensuring continued operation in the event of a main power failure.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The fluid leakage emergency alarm device described in this utility model realizes real-time monitoring and rapid response to fluid leaks by adopting a TPU capsule with oil-resistant, heat-resistant, and pressure-resistant properties, combined with a dual alarm mechanism of electrode sheet lamination alarm and pressure sensor monitoring. It is easy to install, responsive, and low-cost. It not only significantly improves the sensitivity and response speed of leak detection, but also can quickly issue an alarm signal at the early stage of leakage and link the control system to effectively curb the further development of the leak, effectively avoid fluid overflow, and prevent serious accidents such as fire and explosion. In addition, the device has a wide range of applicability and can be widely used in various high-risk critical connection points in the petrochemical industry. Its unique dual protection structure of TPU capsule and PVC protective cover, as well as the dual alarm mechanism of electrode sheet lamination and pressure sensor, enable the device to maintain good working performance in harsh environments and have high reliability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the fluid leakage emergency alarm device according to the present utility model;

[0021] In the figure: 1, TPU bag; 2, pipe flange; 3, the first electrode sheet; 4, PVC protective cover; 5, the second electrode sheet; 6, pressure sensor; 7, suction pipeline; 8, elastic sealing ring; 9, check valve; 10, audible and visual alarm device; 11, standby power supply. DETAILED DESCRIPTION

[0022] In order to make the utility model purposes, technical scheme more clearly, the following will be further detailed with the utility model.

[0023] Example 1

[0024] As Figure 1 Indicated, the fluid leakage emergency alarm device, including TPU bag 1, TPU bag 1 sealed covering on the outer side of pipe flange 2, TPU bag 1 outer surface is equipped with the first electrode sheet 3, the outer side of TPU bag 1 is equipped with PVC protective cover 4, the inner side of PVC protective cover 4, with the first electrode sheet 3 opposite position is equipped with the second electrode sheet 5, and the first electrode sheet 3 and the second electrode sheet 5 are all explosion-proof electrode sheet;TPU bag 1 inside is equipped with pressure sensor 6, still includes the suction pipeline 7 that is sealedly connected in TPU bag 1 inside.

[0025] The connecting place of TPU bag 1 and pipe flange 2 is equipped with elastic sealing ring 8.

[0026] The suction pipeline 7 is equipped with check valve 9.

[0027] The fluid leakage emergency alarm device further includes audible and visual alarm device 10.

[0028] The fluid leakage emergency alarm device further includes standby power supply 11.

[0029] The fluid leakage emergency alarm device further includes control system, and control system is electrically connected with first electrode sheet 3, second electrode sheet 5, pressure sensor 6, audible and visual alarm device 10 and standby power supply 11 respectively.

[0030] When working, the specific steps are as follows:

[0031] First, the TPU capsule 1 is tightly wrapped around the outside of the pipe flange 2, and the hot-melt edge sealing technology is used to ensure that the connection between the two is firm and reliable. Subsequently, an elastic sealing ring 8 is installed at the connection edge of the TPU capsule 1 and the pipe flange 2 to further enhance the sealing performance between the two and effectively prevent the fluid from leaking from the connection gap. Next, the gas in the capsule is extracted by sealing the exhaust pipe 7 connected to the inside of the TPU capsule 1. At the same time, the check valve 9 equipped on the exhaust pipe 7 ensures that the gas does not flow back and prevents the backflow of external gas or liquid. After the exhaust is completed, the PVC protective cover 4 is installed on the outside of the TPU capsule 1 to provide an additional layer of physical protection for the capsule body, effectively resisting potential damage to the TPU capsule 1 from external factors. On the inside of the PVC protective cover 4, a second electrode sheet 5 is provided at a position opposite to the first electrode sheet 3 on the outer surface of the TPU capsule 1.

[0032] If a fluid leak occurs at the connection of the pipe flange 2, the leaked fluid rapidly flows into the TPU bladder 1, causing the bladder to expand rapidly. As the bladder continues to expand, the first electrode sheet 3 gradually approaches the second electrode sheet 5 inside the PVC protective cover 4 until they are finally bonded. This bonding process triggers electrical conduction between the electrode sheets, activating the sound and light alarm device 10 to emit an audible and visual alarm signal. Simultaneously, the pressure sensor 6 inside the TPU bladder 1 monitors pressure changes within the bladder in real time. Once the pressure reaches a preset threshold, the pressure sensor 6 also emits an alarm signal, further enhancing the reliability of the device. These alarm signals are received and processed in real time by the control system. Upon receiving the alarm signal, the control system responds quickly and issues emergency response instructions to prevent further leakage. At the same time, the sound and light alarm device 10 continues to emit clear audible and visual signals to attract the attention of on-site operators and prompt them to take emergency measures. Throughout the alarm process, the backup power supply 11 provides stable power support for the device, ensuring that it can continue to operate normally and issue alarm signals even in the event of a main power failure.

Claims

1. A fluid leakage emergency alarm device, characterized in that: The invention comprises a TPU bag (1), the TPU bag (1) is sealed and covered on the outside of a pipe flange (2), a first electrode sheet (3) is provided on the outer surface of the TPU bag (1), a PVC protective cover (4) is provided on the outside of the TPU bag (1), a second electrode sheet (5) is provided on the inside of the PVC protective cover (4) and at a position opposite to the first electrode sheet (3), a pressure sensor (6) is provided inside the TPU bag (1), and an exhaust pipe (7) is also included which is sealed and connected to the inside of the TPU bag (1).

2. The fluid leakage emergency alarm device according to claim 1, characterized in that: An elastic sealing ring (8) is provided at the connection between the TPU bag (1) and the pipeline flange (2).

3. The fluid leakage emergency alarm device according to claim 2, characterized in that: A check valve (9) is provided on the air extraction pipeline (7).

4. The fluid leakage emergency alarm device according to claim 1, characterized in that: Also included is an audible and visual alarm device (10).

5. The fluid leakage emergency alarm device according to claim 4, characterized in that: A backup power supply (11) is also included.

6. The fluid leakage emergency alarm device according to claim 5, characterized in that: It also includes a control system, which is electrically connected to the first electrode sheet (3), the second electrode sheet (5), the pressure sensor (6), the sound and light alarm device (10), and the backup power supply (11).

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