Protection system for detecting indoor hydrogen cyanide leakage

Abstract

The utility model belongs to the technical field of industrial safety control, and particularly relates to a protection system for detecting indoor hydrogen cyanide leakage. Comprising a closed detection chamber, an online analysis instrument, a poison gas sensor and a smoke sensor are arranged in the closed detection chamber, a closed door is arranged on the side wall of the closed detection chamber, a door lock controller and an audible and visual alarm are arranged above the closed door, an exhaust port is formed in the top of the closed detection chamber, and the exhaust port is connected with an exhaust fan through a pipeline. And an outlet of the exhaust fan is connected with the waste incinerator. The system can monitor the leakage condition of toxic gas in real time, triggers sound-light alarm in the first time, effectively reminds surrounding operators to pay attention and rapidly evacuate, and greatly reduces the risk of personnel poisoning; meanwhile, intelligent control and automatic processing are achieved through the control system, the emergency response speed and processing efficiency are improved, and the risk and cost of manual intervention are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial safety control, and particularly relates to a detection room hydrogen cyanide leakage protection system. Background Technique

[0002] Hydrogen cyanide, as an important inorganic compound, occupies an important position in industrial production due to its unique chemical properties and wide application fields. However, hydrogen cyanide is highly toxic, and its colorless, transparent and volatile characteristics make it reach a certain concentration in the air (5.6%-12.8%), which will not only cause serious acute poisoning and even fatal injuries to the human body, but also have potential explosion risks.

[0003] In the production and processing of hydrogen cyanide, in order to ensure product quality and production safety, on-line analytical instruments are often used to continuously or periodically detect the chemical composition of materials. Since the working environment of on-line analytical instruments is mostly industrial sites, in order to protect the instruments from the adverse environment and facilitate daily maintenance, they are usually installed in special detection rooms. However, although this enclosed installation environment is conducive to the stable operation of the instruments, it also brings new problems: once hydrogen cyanide leaks in the detection room, due to the enclosed space, the leaked toxic gas will quickly accumulate and is difficult to effectively diffuse, thus greatly increasing the risks of safety accidents such as fire, explosion and personnel poisoning. In view of the above background, it is particularly important to develop a set of efficient and reliable detection room hydrogen cyanide leakage protection system. Content of the Utility Model

[0004] According to the deficiencies in the above prior art, the purpose of the utility model is to provide a detection room hydrogen cyanide leakage protection system, which can real-time monitor the leakage of toxic gases, trigger an audible and visual alarm in the first time, effectively remind the surrounding operators to pay attention and quickly evacuate, greatly reducing the risk of personnel poisoning; at the same time, through the control system, intelligent control and automatic processing are realized, improving the emergency response speed and processing efficiency, and reducing the risks and costs of manual intervention.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The detection room hydrogen cyanide leakage protection system described above includes a closed detection room, in which an on-line analytical instrument, a toxic gas sensor and a smoke sensor are arranged. A closed door is arranged on the side wall of the closed detection room, and a door lock controller and an audible and visual alarm are arranged above the closed door. An exhaust port is arranged at the top of the closed detection room, and the exhaust port is connected to an exhaust fan through a pipeline, and the outlet of the exhaust fan is connected to a waste incinerator.

[0007] The inlet of the on-line analytical instrument is connected with a hydrogen cyanide feed pipeline, and a feed electromagnetic valve is arranged on the hydrogen cyanide feed pipeline.

[0008] A check valve is arranged on the pipeline between the exhaust port and the exhaust fan.

[0009] The top of the closed detection chamber is provided with an explosion-proof vent.

[0010] The closed door is provided with an emergency unlocking button.

[0011] A backup power system is also included.

[0012] It also includes a control system, which is electrically connected to an online analytical instrument, a toxic gas sensor, a smoke sensor, a door lock controller, an audible and visual alarm, an exhaust fan, a feed solenoid valve, an explosion-proof vent and a backup power supply system.

[0013] The working principle of the hydrogen cyanide leakage protection system in the detection room is as follows:

[0014] The environment in the closed test room is monitored in real time through the toxic gas sensor and the smoke sensor. Once the toxic gas sensor detects the leakage of hydrogen cyanide gas, the control system immediately triggers the sound and light alarm to sound an alarm, and works in conjunction with it to close the feed solenoid valve to cut off the source of hydrogen cyanide, and control the door lock controller to lock the closed door to ensure the sealing of the closed test room and prevent outsiders from entering by mistake. At this time, the exhaust fan starts under the command of the control system, and sends the toxic gas to the waste gas incinerator for incineration through the pipeline equipped with a check valve. At the same time, the explosion-proof vents remain closed to maintain indoor safety. In case of emergency, the operator can manually open the closed door through the emergency unlock button. The entire system is also equipped with a backup power supply system to ensure that critical safety operations can still be performed in the event of a power outage. When the indoor toxic gas concentration drops to a safe range, the control system releases the alarm, the safety explosion-proof door is unlocked, the exhaust fan automatically stops after a delay of 10 minutes, and the system returns to normal status.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The hydrogen cyanide leakage protection system in the detection room described in the utility model can monitor the environmental conditions in the closed detection room in real time, and can immediately trigger an alarm and start the emergency response mechanism once hydrogen cyanide leakage is found, effectively shortening the time from the occurrence of leakage to the initiation of emergency measures, and greatly improving the efficiency of accident handling; at the same time, through a series of linkage measures, it can quickly cut off the danger source, isolate the dangerous area and effectively eliminate toxic gases, forming an all-round safety protection network, significantly reducing the risk of accident expansion and secondary disasters; in addition, through the control system, centralized monitoring and intelligent control of various key components are realized, which not only improves the convenience and accuracy of operation, but also can automatically execute preset safety procedures in emergency situations, reduce human operating errors, and improve the overall safety management level. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the detection room for hydrogen cyanide leakage protection system of the present utility model;

[0018] In the figure: 1, enclosed detection room; 2, on-line analytical instrument; 3, gas sensor; 4, smoke sensor; 5, enclosed door; 6, door lock controller; 7, sound and light alarm; 8, exhaust port; 9, exhaust fan; 10, waste incinerator; 11, feed solenoid valve; 12, check valve; 13, explosion-proof ventilation port; 14, emergency unlock button; 15, backup power supply system. Detailed Embodiments

[0019] In order to make the purpose and technical solutions of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Embodiment 1

[0021] As Figure 1 shown, the detection room for hydrogen cyanide leakage protection system of the present utility model includes an enclosed detection room 1. An on-line analytical instrument 2, a gas sensor 3 and a smoke sensor 4 are arranged inside the enclosed detection room 1. An enclosed door 5 is arranged on the side wall of the enclosed detection room 1. A door lock controller 6 and a sound and light alarm 7 are arranged above the enclosed door 5. An exhaust port 8 is arranged at the top of the enclosed detection room 1. The exhaust port 8 is connected to an exhaust fan 9 through a pipeline. The outlet of the exhaust fan 9 is connected to a waste incinerator 10.

[0022] The inlet of the on-line analytical instrument 2 is connected to a hydrogen cyanide feed pipeline, and a feed solenoid valve 11 is arranged on the hydrogen cyanide feed pipeline.

[0023] A check valve 12 is arranged on the pipeline between the exhaust port 8 and the exhaust fan 9.

[0024] An explosion-proof ventilation port 13 is arranged at the top of the enclosed detection room 1.

[0025] An emergency unlock button 14 is arranged on the enclosed door 5.

[0026] It further includes a backup power supply system 15.

[0027] It further includes a control system, and the control system is electrically connected to the on-line analytical instrument 2, the gas sensor 3, the smoke sensor 4, the door lock controller 6, the sound and light alarm 7, the exhaust fan 9, the feed solenoid valve 11, the explosion-proof ventilation port 13 and the backup power supply system 15 respectively.

[0028] During operation, the specific process is as follows:

[0029] The environmental conditions in the closed detection room 1 are continuously monitored by the toxic gas sensor 3 and the smoke sensor 4. Once hydrogen cyanide gas leakage or smoke abnormality is found, the signal is immediately transmitted to the control system. After the control system receives the abnormal signal, it immediately triggers the sound and light alarm 7 to sound an alarm, and at the same time, the feed solenoid valve 11 is closed in linkage, the source of hydrogen cyanide is cut off, and the door lock controller 6 is controlled to lock the closed door 5 to ensure that the indoor environment is closed. The exhaust fan 9 is started under the command of the control system, and the toxic gas is sent to the waste gas incinerator for incineration through the pipeline equipped with a check valve 12, which effectively prevents gas reflux and secondary pollution. At this stage, the explosion-proof vent 13 remains closed to ensure indoor safety. In case of emergency, such as people being trapped or needing emergency evacuation, the operator can manually open the closed door 5 through the emergency unlocking button 14 to ensure the safety of the personnel. When the indoor toxic gas concentration drops to a safe range, the control system releases the alarm, the safety explosion-proof door is automatically unlocked, the exhaust fan 9 automatically stops after a delay of 10 minutes, and the system returns to the normal monitoring state.

Claims

1. A detection room hydrogen cyanide leakage protection system, characterized in that: The invention comprises a closed detection chamber (1), wherein an online analyzer (2), a toxic gas sensor (3) and a smoke sensor (4) are arranged inside the closed detection chamber (1), a closed door (5) is arranged on the side wall of the closed detection chamber (1), a door lock controller (6) and an audible and visual alarm (7) are arranged above the closed door (5), an exhaust port (8) is arranged at the top of the closed detection chamber (1), the exhaust port (8) is connected to an exhaust fan (9) through a pipeline, and the outlet of the exhaust fan (9) is connected to a waste incinerator (10).

2. The hydrogen cyanide leakage protection system in the detection room according to claim 1, characterized in that: The inlet of the online analytical instrument (2) is connected to a hydrogen cyanide feed pipeline, and a feed solenoid valve (11) is arranged on the hydrogen cyanide feed pipeline.

3. The hydrogen cyanide leakage protection system in the detection room according to claim 2, characterized in that: A check valve (12) is provided on the pipeline between the exhaust port (8) and the exhaust fan (9).

4. The hydrogen cyanide leakage protection system in the detection room according to claim 3, characterized in that: An explosion-proof vent (13) is provided on the top of the closed detection chamber (1).

5. The hydrogen cyanide leakage protection system in the detection room according to claim 4, characterized in that: The closed door (5) is provided with an emergency unlocking button (14).

6. The hydrogen cyanide leakage protection system in the detection room according to claim 5, characterized in that: Also included is a backup power system (15).

7. The hydrogen cyanide leakage protection system in the detection room according to claim 6, characterized in that: The invention also comprises a control system, which is electrically connected to an online analytical instrument (2), a poison gas sensor (3), a smoke sensor (4), a door lock controller (6), an audible and visual alarm (7), an exhaust fan (9), a feed solenoid valve (11), an explosion-proof vent (13) and a backup power supply system (15).

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