Technical parameters of HYZ 2 positive pressure oxygen respirator

Technical parameters of HYZ-2 positive pressure oxygen respirator.

Specifications: HYZ-2

Rated working pressure of oxygen cylinders: 20 MPa

Oxygen cylinder volume:

Oxygen storage: 280L

Calcium hydroxide filling:

Dimensions: 518 370 160mm

Weight: 15 kg

Respiratory volume: 30L min

Expiratory resistance: (0 600) pa

Inspiratory resistance: 700pa

Quantitative oxygen supply: (

Automatic oxygen supply: 80l min

Manual oxygen supply: 80l min

Opening pressure of automatic supply valve: (10 245)CO2 concentration in aspiration of PA: 1

Oxygen concentration in inspiration: 21

Alarm alarm: (4 6) MPA

Sound level: 80db

Rated working pressure of oxygen cylinders: 20 MPa

Oxygen cylinder volume:

Oxygen storage: 280L

Calcium hydroxide filling:

Dimensions: 518 370 160mm

Weight: 15 kg

Respiratory volume: 30L min

Expiratory resistance: (0 600) pa

Inspiratory resistance: 700pa

Quantitative oxygen supply: (

Automatic oxygen supply: 80l min

Manual oxygen supply: 80l min

Opening pressure of automatic supply valve: (10 245)CO2 concentration in aspiration of PA: 1

Oxygen concentration in inspiration: 21

Alarm alarm: (4 6) MPA

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a When the oxygen cylinder is opened, the high-pressure gas is depressurized by the pressure reducer and becomes the medium-pressure gas. One way of the medium tremor gas passes through the demand valve, and the other gas flows into the low-pressure system through the quantitative hole. When the human body is in a moderate labor intensity, the human body's demand for oxygen is met by quantitative oxygen supply.

With the increase of the labor intensity of the human body, when the pressure in the airbag reaches the opening pressure of the demand valve, the spring pressure plate contacts the demand valve, so that the demand valve is opened, and the medium pressure gas is oxygenated into the airbag through the demand valve to meet the human body's demand for oxygen. The positive pressure in the system is formed by relying on the oxygen supply of the positive pressure spring pressure plate compressed air bag and the demand valve, so that the positive pressure in the respiratory system is always maintained.

b. The low-pressure gas in the air bag passes through the suction cooling device, suction pipe, and suction valve to the mask; The breath exhaled by the mask of 20 people passes through the exhalation valve, exhalation tube, and cleaning tank to the air sac; As the exhaled air gradually increases, the positive pressure spring is compressed. At the same time, the spring pressure plate position gradually rises. When the pressure in the breathing system reaches (400 700) pa, the valve plate of the exhaust valve is ejected by a spring pressure plate.

At this point, the exhaust valve begins to vent; When the person's breathing volume changes from the range of (10 50) l min, the breathing pressure is always automatically adjusted by the demand valve and the exhaust valve.

2.Weight: 8kg

3.Size: 460 365 165mm

4.Quantitative oxygen supply: > n Air sac volume:

5.Automatic replenishment valve: 80 l min

6.Manual replenishment valve: 50 l min

7.Operating temperature: -20 +60

8.Intrinsically safe: Comply with MT867 and EN145 standards.

HY4 positive pressure oxygen respirator application field:

It is suitable for mine rescuers and fire commanders and fighters to carry out rescue and disaster relief work in a suffocating or toxic and harmful gas environment, and can also be used by specially trained personnel in national defense, nuclear industry, aerospace, petrochemical, metallurgy, urban construction, tunnel and other industries to prevent or deal with accidents in an environment that endangers life and health.

In terms of design, it absorbs the characteristics of similar products at home and abroad, and produces positive pressure oxygen respirators with the advantages of smallest size, lightest weight, compact structure, high safety, good protection performance, comfortable wearing, simple operation, convenient maintenance, and low price, which are highly praised by authoritative departments and users.

HY4 Positive Pressure Oxygen Respirator Safety:

Reliable connection system between gas cylinder valve and pressure reducer, overpressure relief system of pressure reducer; The pipeline adopts quick connector connection, which has good sealing performance and easy disassembly and assembly; The streamlined CO2 filtration system allows for better CO2 absorption in the exhaled breath. Since the air pressure in the breathing circuit is slightly higher than the atmospheric pressure, it effectively protects the user from the invasion of toxic and harmful gases from the outside.

Hy4 positive pressure oxygen respirator breathing comfort:

In order to reduce the temperature of the inhaled gas and reduce the physiological burden on the user, the cooling device adopts blue ice or ice cubes, and a manual drainage system is added.

Comfort of wearing the HY4 positive pressure oxygen respirator:

Ergonomically designed back hook system: the improvement of structure (small size) and weight (8kg of the whole machine) ensures the freedom of movement and reduces the physical burden, the cushion belt ensures the safety of the respirator during transportation and use, and the user can quickly carry and unload it.

HY4 positive pressure oxygen respirator is easy to maintain:

1.No tools are required and can be disassembled, repaired and maintained.

2.Innovative switchgear.

3.It can be fully replaced with BG4 (full face mask, half mask, breathing hose, tee joint, etc.).

How the hy4 positive pressure oxygen respirator works:

1.The breathing gas circulates in a closed respiratory system, and the carbon dioxide in the exhaled air is absorbed by the CO2 absorbent in the cleaning tank. The oxygen in the oxygen cylinder is replenished into the respiratory system in the following ways.

2.When oxygen consumption is low, it is supplied through a dosing valve (dosing hole).

3.When the oxygen consumption is large, it is supplied through the automatic supply valve or manual supply valve, and the breathing gas is inhaled into the human body after passing through the cooling tank.

4.The entire respiratory system is in a state of positive pressure, which can prevent toxic pollutants from entering the respiratory system.

5.In order to reduce the temperature of the inhaled gas and reduce the fatigue of the user, the cooling tank is equipped with a cooling medium to ensure a comfortable suction temperature.

6.The safety alarm system adopts a mechanical alarm and is equipped with a chest pressure gauge, a flow limiter, a safety valve, etc., the system is simple in structure, novel, safe and reliable to use, when the high-pressure oxygen cylinder is opened, you can hear the prompt alarm sound once indicates that the instrument has begun to work. The chest pressure gauge can continuously indicate the pressure in the oxygen cylinder, and when the pressure in the gas cylinder reaches the residual pressure alarm pressure (5 1 MPa), the alarm will sound at a sound level intensity greater than 70db for 30 60s to remind the user that there is a maximum of 1 hour of oxygen use under medium labor intensity, and the evacuation site should be prepared.

7.The manual drainage system reduces the resistance of the breathing circuit, allowing the user to turn on the drainage system to remove excess water and breathing gases according to their own needs.

Technical parameters of HYZ-2 positive pressure oxygen respirator.

Specifications: HYZ-2

min oxygen cylinder rated working pressure: 20

MPA Oxygen Cylinder Volume:

Oxygen storage: 280L

Calcium hydroxide filling:

Dimensions: 518 370 160mm

Weight: 15

kg respiratory capacity: 30L min

Expiratory resistance: (0 600) pa

Inspiratory resistance: 700pa

Quantitative oxygen supply: (

Automatic oxygen supply: 80l min

Manual oxygen supply: 80l min

Automatic judgment of lead supply valve opening pressure:

10～245)pa

Inspiratory carbon dioxide concentration: 1

Oxygen concentration in inspiratory washout: 21

Alarm alarm: (4 6) MPA

Sound level: 80db

HYZ4 positive pressure oxygen respirator is a long-term working personal protective equipment suitable for coal mines and mine disaster relief environment, which has been developed and produced by researchers from many domestic mining safety equipment companies according to the physiological conditions of China's mine rescue crews and the geological conditions of mine production. This product is equivalent to the American NIOSH technical specifications and the EU EN145 product standard, and has obtained a number of technical and appearance patents.

HYZ4 Isolated Positive Pressure Oxygen Respirator Quantitative Oxygen Supply: Automatic Supplemental Oxygen Supply: 80L Min; Expiratory resistance 600pa.

Preparation and inspection before using the HYZ4 Isolated Positive Pressure Oxygen Respirator:

Must be trained to be proficient in the use of this device; Visual inspection and performance inspection must be carried out before use, and respirators that are found to be abnormal are prohibited from being used.

Mask rubber parts without aging deformation, mutual adhesion, cracking;

The nose pads must be properly fitted to the mask;