The negative pressure ambulances produced by so many car companies are very different from ordinary ambulances.

Automatic priority of steam potential | Sun Jinfeng

Recently, negative pressure ambulances produced by major automobile manufacturers have been delivered to the front line of epidemic prevention in Wuhan and other places, providing follow-up guarantee for winning the epidemic prevention war. According to Auto-First, at present, automobile manufacturers such as Brilliance, SAIC, Chery, Futian, Yutong and Jiangling Ford have all received the emergency production task of the first batch of 200 negative-pressure ambulances issued by the Ministry of Industry and Information Technology, and have been working overtime to catch up with production since the first day of the New Year. As the epidemic ushered in a tough battle, orders for negative pressure ambulances from medical institutions all over the country followed, and many autobots were overcoming difficulties and racing against time.

What is a negative pressure ambulance?

The so-called negative pressure ambulance, also known as the "movable large N95 mask" to protect life, is the biggest difference from ordinary ambulances in that it can achieve "negative pressure isolation". That is, using technical means, the air pressure in the car is lower than the external atmospheric pressure. When the air flows freely, it can only flow from the outside to the inside of the car, and the negative pressure technology can also discharge the air inside the car after harmless treatment to prevent the spread of the epidemic and realize the safe isolation and transportation of patients.

SAIC Chase obtained the production task of 60 pressure ambulances from the Ministry of Industry and Information Technology. On February 5th, the day of completion of Wuhan Thunder God Mountain hospital, 30 SAIC Datong negative-pressure ambulances had arrived at the scene. Said Chase said that the biggest feature of negative pressure ambulance is that it can achieve "negative pressure isolation", which can avoid cross-infection between doctors and patients and pollution to the external environment to the greatest extent. After the negative pressure device is started in the vehicle, the air flow direction in the vehicle can be controlled, so that the air in the medical cabin forms directional flow, and the medical cabin forms atmospheric low pressure difference (the relative pressure is between-30pa and-20pa) relative to the external environment. The air exhaled by the patient passes through the inhalation device of the inhalation terminal and is put outside the car after disinfection to prevent pollution, and at the same time, the gas with infectious virus is guaranteed not to circulate in the car to avoid secondary pollution.

On February 5th, Chery Automobile completed the delivery of the first batch of 20 negative pressure ambulances. Chery said that the negative pressure ambulance plays the role of "triple protection". The first protection comes from the negative pressure ambulance medical cabin, which is a large negative pressure cabin. While ensuring a certain amount of fresh air input, the air in the carriage is filtered and disinfected before being discharged outside the car, thus ensuring that the external environment is not polluted. The second protection is the negative pressure stretcher cabin, which will form a fixed airflow field, and the air will always flow from the clean area (medical staff area) to the infection source area (patient area), and be discharged after harmless treatment, so as to minimize the possibility of cross-infection between doctors and patients in the cabin. The third protection is the personal protective equipment of medical staff, drivers and stretcher bearers. The escort of "triple protection" can not only provide safety protection for patients, medical staff, drivers and stretcher bearers, but also effectively prevent the further spread of the disease source.

In addition to the key negative pressure isolation cabin, Renault Brilliance's technicians introduced that the negative pressure ambulance is also equipped with a complete set of rescue equipment such as bio-safe negative pressure isolation stretcher, ventilator, defibrillator, ECG monitor, ultraviolet disinfection lamp and central oxygen supply interface. , fully protect every link of the epidemic prevention front line. The layout of medical cabin refers to European first aid principles, combined with domestic first aid practice, and adheres to the patient-centered "one-arm" first aid design. Common consumables and medical equipment are within one arm, which is convenient for medical staff to obtain and operate, and improves the speed of rescuing patients.

In addition, the materials used in negative pressure ambulances are also different from ordinary cars. The medical cabin is made of self-sterilizing composite material, which has the characteristics of high strength, high toughness and non-volatilization. The soft packaging material is made of antibacterial PU, which is easy to clean and can be disinfected. The internal connection adopts nano structural adhesive, which has the characteristics of high strength and non-volatilization.

Work overtime, race against time.

The particularity of negative pressure ambulance and the urgency of epidemic situation have brought great challenges to the production of negative pressure ambulance. 124 October, 65438 received the task of 60 negative-pressure ambulances from the Ministry of Industry and Information Technology, and Vice President Lan immediately called the vice president of the company and the heads of various departments to hold an emergency conference call, and decided to officially rework it on the first day of New Year's Day on125 October. On the first day of the lunar new year, the technical backbone of the branch company was refitted and resumed work. There are more than 0/00 reworkers in Grade 2, accounting for more than 95%. Workers worked overtime for epidemic prevention, and completed the first batch of negative pressure ambulances in 10, which was 20 days shorter than the normal 30-day construction period. On February 5th, the first batch of 60 negative-pressure ambulances were delivered to support the front line of anti-epidemic.

Brilliance Group responded quickly after receiving the task. From the beginning of emergency production to now, engineers and employees have been working until the early hours of the morning almost every day. For negative pressure ambulance, the most critical and time-consuming step is the sealing link. It takes 2-3 days for the whole vehicle to be normally sealed. Through the on-site attack by R&D personnel and workers, brilliance jinbei urgently dispatched elite soldiers and powerful generals, and repeatedly designed and verified them by using negative pressure system drawings and digital models, and simply compressed the time to 1 day. At the same time, the wire harness transformation, exhaust system transformation, special facilities installation and other links have also been efficiently modified. According to the relevant personnel of Brilliance Auto, Brilliance Group should first complete the production task of negative pressure ambulance urgently needed in the front line of epidemic prevention. It is planned to complete the delivery of 15 negative pressure ambulances on February 8, and strive to complete 30 negative pressure ambulances to the anti-epidemic front line on February 20.

Chery Ruifutong Vehicle Technology Co., Ltd., a subsidiary of Chery Holding Group, has completed the delivery of all 20 negative pressure ambulances after working overtime for more than 10 days. Ke Dengchuan, general manager of Chery River, introduced that the company's emergency team was deployed urgently on the morning of New Year's Day and arranged to inform employees. Since the second day of the year, the ambulance production line and parts production line have started one after another. Facing the shortage of manpower, poor logistics and lack of core accessories such as chassis during the Spring Festival holiday, River tried its best to overcome it. For suppliers with difficult delivery, the company directly sends a car to pick up the goods; The company will provide transportation security for employees who encounter travel difficulties when they return to work. Chery River also urgently invested an additional 2 million yuan to acquire key equipment, rapidly increase production capacity, give full play to horsepower, and ensure that production tasks are completed on time and with good quality. "As a manufacturer of special equipment such as ambulances, we must take responsibility at critical moments."

Fukuda Tuyano races against time. On the first day of New Year's Day, all the staff of the negative pressure ambulance production workshop arrived at their posts, and the "negative pressure ambulance fire line production commando" was quickly established. Before February 15, 50 negative pressure ambulances will be delivered one after another and put into the front line of epidemic prevention and control in hospitals such as Vulcan Mountain and Raytheon Mountain. Fukuda Tuyano, as a professional brand of large and medium-sized van-type special-purpose modified vehicles in China and a major manufacturer of negative-pressure ambulances, has successively received orders for ambulance production from the Ministry of Industry and Information Technology and all over the country, and has received more than1.8000 ambulances. Futian Tuyano production commando responded positively, made quick decisions, arranged production in an orderly manner, and put into epidemic prevention production and supply at the first time in the battle.

In fact, with the development of the epidemic, car companies are receiving orders for ambulance production from all over the country every day. According to the relevant personnel of Brilliance Auto, about 20 ambulance orders are received from all over the country every day. If there are enough spare parts, Brilliance can get off the line at least 1500 ambulances every month, and 80 ambulances every day if the production capacity is full. Said Chase said that at present, the cumulative order from the national anti-epidemic front line has exceeded 230, and Said Chase is working overtime to "sprint" the subsequent negative pressure ambulance production task.

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