The ambulance is a well-known term that plays an important role in the transfer of patients. Now, through the news reports and more recognized a new term: negative pressure ambulance, it is like a mobile protective "fortress", to protect the people, but also to protect the struggle in the front line of the medical staff, and what is the difference between it?
What is a negative pressure ambulance?
Negative pressure ambulance is a protective ambulance, it is the biggest difference between ordinary ambulance is able to "negative pressure isolation", mainly used for major infectious disease safety isolation and transportation, from the literal meaning of the understanding of the key in the "negative pressure". The key lies in the word "negative pressure". First of all, recall the secondary school age learned geography, air pressure will not flow but will cause air movement, the air will flow from the high pressure areas to the low pressure places; conversely, the air will not flow from the low pressure areas to the high pressure areas.
So, the negative pressure ambulance is actually the use of negative pressure device inside the car, so that the air pressure inside the car is lower than the outside atmospheric pressure, the air in the free flow can only flow from the outside of the car to the car, to prevent the car air leakage of the car type. From the working principle, the negative pressure device in the car can be regarded as the home hood, by constantly pumping away the air inside the car, the formation of directional airflow from top to bottom, to ensure that health care workers can be the first to get fresh air.
At the same time, the car is also equipped with professional disinfection equipment, the patient's exhaled air filtered by the disinfection equipment before discharging to the outside of the car. It is understood that the disinfection equipment can kill more than 99.97% of the germs, can be very good to avoid the discharge of gas pollution of the environment outside the car.
In addition, the negative pressure ambulance can be added to the more stringent isolation cabin, but also independent of the negative pressure equipment, this isolation cabin fan using lithium battery power supply, can be used continuously, for the medical staff to add a guarantee. The air coming out of the independent isolation cabin goes directly into the air filtration system for effective and harmless treatment, preventing the harmful air from flowing out to the outside world and causing harm.
How is a negative pressure ambulance produced?
As we all know, ambulances have a large number of medical equipment and medical supplies, such as epinephrine, dopamine, Valium, atropine, nitroglycerin and so on, all of which are medicines that can save your life at critical moments. Moreover, ambulances are required to accommodate a stretcher of about 2 meters in length and still be able to take medical personnel. Therefore, the ambulance must meet the demand for space, and the size of the light bus is the most appropriate.
The light buses on sale in China have a body length of 4.8-5.8 meters, and a height of 2.2-2.6 meters, which can better provide space for medical operations and guarantee that paramedics can carry out emergency treatment for patients in the car. According to statistics, in 2019, ambulances built on light buses accounted for about 60% of the vehicle type, which is also the most widely used base vehicle for domestic ambulances.
In terms of production time, the production of a negative pressure ambulance consists of two parts, one is the production of the base car, according to the conventional steps, the production of the base car usually takes 2 weeks; the second is the professional modification of the base car, including the installation of the interior, foam insulation treatment, wiring, electrical, medical equipment installation, installation of negative pressure facilities and so on many steps, it also has to spend 2 weeks. In other words, under normal circumstances, it takes about 30 days to complete a negative pressure ambulance.
The SAIC Datsun V80 long-axle negative-pressure ambulance, for example, is based on the SAIC Datsun V80 long-axle light bus, with a length of 5,700mm and a wheelbase of 3,850mm, which allows for the assembly of enough medical equipment and materials. After professional modification, the vehicle's negative pressure equipment exhaust volume of up to 400m3 per hour, negative pressure range control in -23 to -27Pa between the disinfection filtration system can kill 99.999% of the germs, so that the air will not be contaminated with the car and the environment outside the car, greatly protect the health care workers and the people of the masses of security.
Negative pressure ambulance current production status
It is understood that the State Ministry of Industry and Information Technology in the New Year's Eve issued a notice, requiring some light passenger manufacturers to step up for the epidemic to rush production of negative pressure ambulance.
As of February 5, Jiangling *** produced 53 ambulances delivered to the front line of epidemic prevention and control, as China's largest ambulance manufacturer, Jiangling Ford has received more than 1,900 ambulance orders, with more than 2,000 employees put into overtime production; SAIC Datsun, on the other hand, received the task of completing 60 negative-pressure ambulance production in quality and quantity in ten days for the support of Wuhan.
Yutong Bus also received a task from the Ministry of Industry and Information Technology of the State, which required the urgent production of 55 negative pressure ambulances in quality and quantity before February 5, and on January 28, Yutong Bus donated 10 negative pressure ambulances to Wuhan to support the first line of epidemic prevention and control of the Vulcan Mountain and Leishen Mountain hospitals.
On January 25, BAIC Foton Shandong Weifang Tuyano negative-pressure ambulance production workshop was on duty to produce Tuyano negative-pressure ambulances urgently. on February 2, BAIC Foton donated 40 Tuyano negative-pressure ambulances for the service of the epidemic area, which will be sent to five provinces, namely, Hubei, Zhejiang, Guangdong, Henan and Hunan.
In addition, at the same time received the task of the Ministry of Industry and Information Technology, Chery Ruifu, Brilliance Jinbei, Fujian Benz, Nanjing Iveco and many other car companies, they are also requested for the production of negative-pressure ambulances, modification, shipment work night and day overtime.
Automobile Yu commented
In the anti-epidemic battle, the negative pressure ambulance more effectively protects the front-line health care workers, greatly reducing the risk of them being infected in the process of transferring patients in the pneumonia outbreak, and also more effectively preventing the possible contamination of the outside air and the spread of the new coronavirus in the process of transferring patients, which is a veritable mobile protective "fortress". It's a real "fortress" of mobile protection.
This article comes from the author of the automobile home car family number, does not represent the views of the automobile home position.