What are the advantages of the HYZ 2 positive pressure oxygen respirator?

HYZ2 positive pressure oxygen respirator is a device used by mine rescue crews for personal respiratory protection during rescue work. It is used to protect the respiratory organs of mine rescue crews when they are engaged in rescue work, so that they can be harmed by toxic and harmful gases.

It has the characteristics of safety, reliability, comfort, and easy operation and use. There are two specifications, 2 hours and 4 hours, namely HYZ2 HYZ4.

HYZ2 isolated positive pressure oxygen respirator fully absorbs the advantages of similar products at home and abroad and combines the actual situation of China's ambulance team, and is in the product structure design. Coal production embodies the advantages of small size, light weight, reliable performance, comfortable wearing, convenient use and maintenance, and the technology has reached an advanced level. Therefore, it is more suitable for the actual use of ambulance crews in underground, roadways and narrow environments.

HYZ series positive pressure oxygen respirators can operate in any toxic and hypoxic environment and dangerous areas.

HYZ-2 positive pressure oxygen respirator technical parameters:

Specifications: HYZ-2

Rated working pressure of oxygen cylinder: ZM20MPa

Oxygen cylinder volume:

Oxygen storage: 280L

Calcium hydroxide filling:

Dimensions: 518 370 160mm

Weight: 15 kg049

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) pa

Inspiratory carbon dioxide concentration: 1

Oxygen concentration in inspiration: 21

Alarm alarm: (4 6) MPA

Sound level: 80db.

HYZ-2 positive pressure oxygen respirator is a device used for respiratory protection when mine rescue crews carry out rescue work, which has the characteristics of reliable performance, comfortable wearing, and convenient use and maintenance.

The HYZ-2 oxygen respirator has many advantages, which are as follows:

HYZ-2 oxygen respirator uses chemical reaction to produce oxygen isolation closed-circuit circulation personal respiratory system protection device, which is mainly used to provide oxygen source for the wearer when toxic and harmful gas pollution and hypoxia occur in coal mines or ambient air.

HYZ-2 oxygen respirator (hereinafter referred to as respirator YMJT01) is a device used by mine rescue crews for personal respiratory protection during rescue work. It has the characteristics of reliability, comfort, and easy operation and use. China Coal Respirator is mainly used to protect the respiratory organs of mine rescue crews from toxic and harmful gases when they are engaged in rescue work.

The positive pressure air respirator is compressed air, and the oxygen content in the air is what is the oxygen content in this positive pressure air breathing apparatus.

1. The gas of the positive pressure air respirator is the same as air, which can ensure the normal breathing needs of people. We have always lived in the atmosphere.

2. The reason for not using pure oxygen is: this cylinder is originally filled with compressed air and cannot be used to hold pure oxygen; The environment in which the positive pressure SCBA is intended to operate is not an environment that requires pure oxygen. So there is no need to use a pure oxygen device.

1. When the medium coal oxygen cylinder is opened, the high-pressure gas is reduced through the pressure reducer to change into medium-pressure gas. One medium-pressure gas passes through the demand valve and the other gas flows through the dosing orifice into the low-pressure system. 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 human labor intensity, when the pressure in the air bag of the coal HYZ-2 oxygen respirator reaches the opening pressure of the demand valve, the spring pressure plate contacts the demand valve to open the demand valve, and the medium pressure gas is oxygenated into the air bag through the demand valve to meet the human body's demand for oxygen. The positive pressure formation in the system relies on the effective oxygen supply of the spring pressure plate compressed air bag and the demand valve, so that the positive pressure in the respiratory system is always maintained.

2. The low-pressure gas in the air bag passes through the suction cooling device, the suction tube, and the suction valve to the mask, and the gas exhaled by the person in the mask passes through the exhalation valve, the exhalation tube, and the cleaning tank to the air bag; 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 respiratory 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.

HYZ-2 positive pressure oxygen respirator technical parameters:

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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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.

HYZ-2 positive pressure oxygen respirator technical parameters:

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.

(1) Quantitative oxygen supply. The respirator supplies oxygen to the air bag with the oxygen flow rate, which can meet the breathing needs of the wearer under moderate labor intensity.

2) Automatic oxygen supply. When the labor intensity increases and the quantitative oxygen supply cannot meet the needs of the wearing personnel, the automatic supply device automatically supplies oxygen to the airbag with a flow rate greater than 60L min, and automatically closes when the airbag is full.

3) Manual supplemental oxygen supply. When there is too much exhaust gas accumulated in the air bag and it needs to be cleared or the automatic supplemental oxygen supply cannot meet the needs or malfunctions, manual supplemental oxygen supply can be used.

The plastic shell used in the shell of the HY2F oxygen respirator has high strength, good performance, light weight, good safety, easy to carry, and is more comfortable with a fast wearing strap set. Yimeijx0300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

1. The shell is made of high-strength plastic shell, which not only reduces the weight of the instrument but also improves the safety (the original AHG-2 oxygen respirator uses aluminum alloy shell).

2. The HY2F oxygen respirator adopts a fast-wearing shenhua08 strap group (pure cotton belt) to make it more comfortable to wear.

3. The oxygen cylinder can be equipped with Shandong Shenhua high-strength aluminum alloy cylinder according to the user's needs, and the weight of the aluminum alloy cylinder is reduced by 40% compared with the steel cylinder.