It is the Iron Man in the ambulance, delivered by SAIC· Chase within 10 days, and has been sent to Thunder God Mountain hospital.

The novel coronavirus epidemic in Wuhan has been affecting the hearts of people all over the country. We see that all sectors of society do their best to donate medical supplies such as masks, protective clothing and disinfectants. In fact, in addition to providing necessary protective equipment for doctors, nurses and patients, there is also a top priority, that is, how to transport patients safely and avoid the secondary spread of the epidemic on the way, so here we have to mention a term-negative pressure ambulance.

Negative pressure ambulance is believed to be the first time for many people to hear about it. It is called "mobile mask", also known as "Iron Man in the ambulance". Recently, the Ministry of Industry and Information Technology issued the task of emergency production of negative pressure ambulances to several major domestic automobile companies for the treatment of Wuhan epidemic. So what are the advantages of negative pressure ambulances? What role can it play in this fight against the epidemic? We will talk about it in detail below.

Where is the negative pressure ambulance better than the ordinary ambulance?

One of the biggest differences between the words "negative pressure ambulance" is "negative pressure", which is also the biggest difference between it and ordinary ambulances. Through the work of the negative pressure generator, the pressure in the car can always be lower than the external atmospheric pressure. As our junior high school physics textbook says, gas will flow from places with high pressure to places with low pressure. Therefore, the role of "negative pressure" is to prevent the air in the car from flowing out through the gaps such as doors and windows and prevent the spread of viruses.

After talking about the outside of the car, the air conditioner and fan of the negative pressure ambulance use the principle of fluid mechanics to form a top-down directional airflow in the car. The airflow will first flow through the medical staff sitting in a higher position, and then through the patient lying flat. Finally, the gas in the car will be disinfected by the filter and then discharged from the car, and will not enter the car for recycling, which can ensure the safety of medical staff in the car and avoid cross-infection.

In addition, the negative pressure ambulance also has a variety of extended functions, equipped with a full set of rescue equipment such as ventilator, defibrillator and ECG monitor, equipped with ultraviolet disinfection lamp and central oxygen supply interface, which can perform debridement and suture surgery and cardiopulmonary resuscitation. The installation of negative pressure isolation cabin has stricter protection measures and can cope with highly contagious diseases.

What's the difference between negative pressure ambulances in production?

To realize negative pressure, the most fundamental premise of negative pressure ambulance is to ensure the absolute air tightness in the car. It is precisely because of its particularity that the state also has strict technical standards for negative pressure ambulances. The Ministry of Health requires 20 breaths per hour, the negative pressure value is between-10Pa and -38Pa, and the filtration separation rate is 99.9%.

This puts forward extremely strict requirements for the assembly technology and material level in the car. It is no exaggeration to say that the quality control requirements of negative pressure ambulances are higher than those of most luxury brands of passenger cars on the market.

Negative pressure ambulances usually need to be customized on the basis of basic vehicles. For example, the negative pressure ambulance provided by SAIC Chase is located in SAIC MAXUS? Customization based on V80, if customized and modified, needs to go through many steps such as foam insulation treatment, wiring, indoor decoration and installation, electrical and medical equipment installation, negative pressure facilities installation and so on, which will greatly increase the production cycle.

Similarly, for example, SAIC Datong received an urgent task to deliver 60 negative-pressure ambulances within 65,438+00 days. To this end, the factory worked overtime and shortened the production cycle by two-thirds. It is not easy to ensure smooth delivery under such difficult production intensity.

Why is the negative pressure ambulance logo "posted backwards"?

In this batch of 60 negative-pressure ambulances produced by Batch Chase, we found a very interesting phenomenon. The words "negative pressure ambulance ambulance" on the roof seem to be stuck backwards. Later, according to our understanding, the negative pressure ambulance produced by SAIC Chase adopted the internationally accepted ambulance marking scheme, which is correct. Its purpose is to let the driver in front of the car directly see the words "negative pressure ambulance" in the positive direction through the rearview mirror, so as to make way for the ambulance quickly without delaying the rescue and transshipment time.

Summary:

Negative pressure ambulance is a powerful protective barrier against novel coronavirus in Wuhan and even the whole country. At present, 30 negative-pressure ambulances produced by SAIC Datong have arrived in Thunder God Mountain hospital, and another 25 are undergoing final installation and commissioning at SAIC Datong Wuxi factory. They will arrive in Wuhan on February 6 at the latest, and the next five people will arrive at the designated hospital in a few days. It is believed that with the continuous use of negative pressure ambulances, front-line medical staff will be even more powerful, expecting the epidemic to be repelled as soon as possible, and Wuhan cherry blossoms will bloom as scheduled.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.