Where to use carbon dioxide detectors
A) Fixed gas detector:
This is a detector that is widely used in industrial devices and production processes. It can be installed on a specific detection point to detect specific gas leaks. The fixed detector is generally a two-body type. The detection head composed of sensors and transmitters is installed on the detection site as a whole, and the secondary instrument composed of circuits, power supplies and display alarm devices is installed in a safe place as a whole, which is convenient for monitoring.
Its detection principle is the same as that described in the previous section, but it is more suitable for the characteristics of continuous and long-term stability required by fixed detection in terms of process and technology. They should also be selected according to the type and concentration of the on-site gas. At the same time, attention should be paid to installing them in the part where the specific gas is most likely to leak. For example, the most effective height of the sensor installation should be selected according to the specific gravity of the gas.
B) Portable gas detector:
Because the portable instrument is easy to operate and small in size, it can be carried to different production sites. The electrochemical detector is powered by alkaline batteries and can be used continuously for 1000 hours; the new LEL detector, PID and composite instruments use rechargeable batteries (some have been Using non-memory nickel metal hydride or lithium-ion batteries), so that they can generally work continuously for nearly 12 hours, so, as this type of instrument, it is more and more widely used in various factories and health departments. Where to use carbon dioxide detectors
1 large livestock farm:
Some large-scale farms, such as: cattle, pigs, chickens, etc. are raised in some closed or semi-closed pens. Because of the large number and density of livestock and poultry, these animals will exhale a lot of carbon dioxide. If If there is no ventilation in a closed space for a long time, the concentration of carbon dioxide will be too high, which will cause the animals to suffer from hypoxia, lack of energy, fatigue, loss of appetite, slow weight gain, and high morbidity. At the same time, lack of air circulation can easily lead to epidemic outbreaks. For example, poor ventilation in the pig house will lead to a series of problems such as decreased immunity, decreased feed conversion rate, and respiratory infectious diseases. In recent years, mycoplasma pneumonia (MPS), porcine reproductive and respiratory syndrome (PRRS), porcine atrophic rhinitis, porcine infectious pleuropneumonia (APP), porcine pseudorabies, swine flu, porcine ring virus (PCV2) and other diseases The infection of pig respiratory system causes the increase of sickness rate, and the harm increases the weight of. It is difficult to control after the onset; the incidence rate is generally 40-50%, and the mortality rate is 5-30%. However, if the ventilation is too fast and the wind speed is too high in winter, the heat in the pig house will also be taken away, causing the room temperature to drop, the pig's basal metabolism to increase, and the growth to slow down; Heat can also make pigs uncomfortable. According to relevant professional data, it is confirmed that the economic loss caused by poor ventilation, and the poor ventilation of the pig house will increase the cost of feeding by 10% to 20%.
Therefore, the detection of carbon dioxide concentration, temperature and ventilation rate in the breeding pen is very important. The above data can be monitored at any time by installing a carbon dioxide and temperature monitor in the breeding house and connecting it with a fan. When the carbon dioxide concentration exceeds the standard, the monitor will alarm and start the fan to automatically replace the fresh air; at the same time, the temperature and ventilation rate of the pens will be monitored at any time.
2. Manufacturers of energy-saving and environmental protection products:
Here we take the manufacturers of energy-saving doors and windows as an example: there are many energy-saving doors and windows that can be ventilated without opening the windows. In order to prove the energy-saving and ventilation of the products, the manufacturers will give customers a carbon dioxide and The temperature monitor allows customers to measure the indoor carbon dioxide concentration at any time. This machine can also monitor the indoor temperature and ventilation rate at the same time. With these data that can be monitored scientifically at any time, these customers feel more at ease after using energy-saving doors and windows.
3. Underground safety production:
A lot of toxic gas and carbon dioxide will be produced during underground operations. Excessive concentration of carbon dioxide will cause people to be seriously hypoxic underground, resulting in inability to breathe and work normally. Putting a carbon dioxide detector in the underground working environment can monitor the concentration of carbon dioxide at any time. Within the normal working range, the downhole temperature can be monitored at the same time, so as to avoid some accidents and do a good job in related protection work.
4 Kindergartens, offices, schools, supermarkets:
For example: when there are dozens or hundreds of students in a school classroom, the concentration of carbon dioxide will increase if the windows are not opened for a long time, which will cause teachers and students to feel dizzy or sleepy, and reduce learning efficiency. If there is a carbon dioxide monitor in each classroom, adjust the machine to a suitable alarm value. If the alarm is triggered, you can open the window for fresh air, which can ensure the quality of the air and allow students to have a quiet time. A learning environment free from outside distractions.
In crowded public places, such as supermarkets, stations, etc., the long-term operation of air conditioners also leads to waste of resources. Placement of carbon dioxide and temperature monitors can monitor the carbon dioxide concentration and indoor temperature in these public places at any time, and adjust the ventilation rate and temperature according to needs, which will save a lot of resources and expenses.
