Fire up posture! Prolonging the use of air respirator

Just as many people will pay attention to the fuel consumption per 100 km of the vehicle when buying a car, you will also ask similar questions when you buy an air-breathing device. How long can this air-breathing be used once after inflation?

When the salesperson tells you that the theoretical working time is 1 hour, after you bought it, you find that it seems that the actual use time is less than 1 hour. Is this information wrong? Or is there a problem with the product itself? Maybe there are other reasons? Many users have this kind of doubt. To understand this, let's talk about the use of air breathing apparatus today.

How long can the air respirator be inflated?

There are many factors that affect the airtime use time, including the cylinder capacity, inflation pressure, operating intensity, and breathing habits. This is also a learned question. We start with understanding the working principle of air breathing apparatus. The air respirator automatically adjusts the air supply volume according to the user's breathing volume. The breathing air starts from the cylinder and is decompressed by the pressure reducer, and then the air supply valve which can automatically adjust the air supply pressure is reduced in pressure, and finally sent to the micro-positive air. Pressurized full facepiece for users to breathe. The exhaled air is then discharged directly into the atmosphere via a full-faced exhaust valve. When the cylinder volume and inflation pressure are quantified, the use time depends on the operator's strength and breathing habits.

Let us first talk about the intensity of the work. According to the calculation, the average air consumption for different types of work is roughly as follows:

For people who use air respirators, the intensity of work is between high-intensity work and intense activity, so the air consumption is generally high.

Taking a cylinder of 6.8L /30MPa as an example, the gas storage capacity is about 1,900L . If the standard test flow is 30L / minute, the theoretical use time is about 63 minutes. However, if measured in terms of respiratory volume of 50 L / min, the use time is 35 minutes.

When the same set of air breathing apparatus, the same person engaged in the same work, the use of the breathing apparatus only the breathing habits of this variable.

In order to make your air respirator longer, you need to adjust your breathing habits, maintain a peaceful mind, and reduce stress. You can use the "deep inhale, slow exhale" method to extend the time of each respiratory cycle, allow the air to fully exchange in the user's body, try to control the amount of breathing, which can effectively reduce ineffective breathing, to avoid wasting air, thus To achieve the effect of extending the use of time.

Therefore, to make your air respirator longer, you can use "deep inspiration, slow exhalation," "deep inhalation, slow exhalation," "deep inhalation, and slow exhalation" (important The way to say it three times), the good breathing habits cultivated in this manner will definitely extend the use of air respirator!

Little friends, the secret of extending the use of air respirator time do you have mastered it?

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.