Application of Gas Detector in Prevention of Ammonia Leakage
What is ammonia gas?
Ammonia, Ammonia, NH3, colorless gas. Has a strong pungent odor. Density 0.7710. The relative density is 0.5971 (air=1.00). Easily liquefied into a colorless liquid. It can be directly synthesized from nitrogen and hydrogen. It can burn the skin, eyes, and mucous membranes of respiratory organs. If people inhale too much, it can cause lung swelling and even death. The smell is similar to the smell of toilets that have not been used for a long time.
Symptoms of Ammonia Poisoning
According to public information, ammonia gas is mainly poisoned by inhalation through the respiratory tract, and the toxicity to the human body is related to the concentration of ammonia in the environment and the contact time. Mild contacts may experience tearing, sore throat, hoarseness, and coughing, which may also be accompanied by symptoms such as dizziness, chest tightness, nausea, and vomiting. In severe cases, chemical inflammation of the upper respiratory tract mucosa and burns, pulmonary congestion, pulmonary edema, hemorrhage, and even coma and shock may occur.
What should I do if the ammonia leaks?
Quickly evacuate the personnel in the leaked contaminated area to the upwind place, and immediately isolate 150m, and strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static overalls. Cut off the source of the leak as much as possible. Reasonable ventilation, accelerate the diffusion. For high-concentration leakage areas, spray mist water containing hydrochloric acid to neutralize, dilute and dissolve. Construct dikes or dig pits to contain the large amount of wastewater generated. If possible, use the exhaust fan to send the residual gas or leakage gas to the water washing tower or the fume hood connected to the tower. It is better to set dilute acid spraying facilities in the storage tank area. Leakage containers should be properly disposed of, repaired and inspected before reuse.
How to prevent and detect the leakage of chemical gas?
Combustible (toxic) gases, such as ammonia, are chemical gases that industrial sites are often exposed to. Generally, enterprises will regularly inspect and maintain gas storage containers and equipment to prevent the leakage of flammable and toxic gases. According to the results of market research, both large-scale industrial enterprises and small chemical plants have formulated and implemented chemical gas detection systems. However, the frequency and efficiency of manual detection are not ideal, and real-time monitoring cannot be achieved, which requires professional personnel. Combustible (poisonous) gas alarm control system replaces manual inspection work. Commonly used flammable (toxic) gas detection and alarm devices can be divided into single gas detection devices and multiple gas detection devices according to the type of gas detected.
Single Gas Detection Device
A single gas detection device, as the name implies, is a device (system) designed to detect a certain gas. This kind of device uses natural diffusion to detect gas. The sensitive element adopts high-quality gas sensor, which has excellent sensitivity and excellent repeatability. Alarm function, once the gas is detected to reach or exceed the set value, the alarm device will be activated, and the purpose of alarm will be achieved through the sound and light system. With the development of industry, industrial enterprises have put forward higher requirements for the portability of detection devices, so a portable gas detection device has been developed. A self-adaptive ability; equipped with a dot-matrix liquid crystal display, so that the detection value is intuitive and clear; small and portable design, convenient for users to detect anytime and anywhere, such as Chuangzhizhongcheng Portable Single Gas Detector.
Multiple Gas Detection Devices
A variety of gas detection devices are products specially designed for industrial sites developed and produced to meet the needs of enterprises to detect two or more different types of gases. Take ZC90C08 gas alarm controller (bus system) as an example, the controller can be matched with various gas detectors with MODBAS-RTU/RS485 standard protocol signal output to form a powerful gas alarm control system. The device adopts a wall-mounted installation structure, which has good fixing performance and reduces space occupation; it is equipped with a special touch screen human-machine interface, which simplifies operation, has strong versatility, and reliable performance. Instrument display and process flow setting. It is understood that the controller has the functions of alarm parameter setting, real-time clock and historical alarm records, etc. The set parameters are automatically saved, and the data will not be lost even after power failure, which greatly reduces the workload of operators; the operation interface Digital and light columns are used to display the detection concentration, status and alarm information of each gas, which is rich in information, convenient and practical.
