Fire protection self-rescue respirator

Abstract

The invention discloses a fire protection self-rescue respirator, and belongs to the field of fie protection survival equipment. The fire protection self-rescue respirator comprises an expiration tube, an inspiration tube, a breathing mask, an oxygen reaction cavity, a cooling cavity, a storage cavity and a water storage cavity. Both the inspiration tube and the oxygen reaction cavity are arrangedin the cooling cavity, the oxygen reaction cavity is a spiral thin tube, the upper end of the oxygen reaction cavity is connected with the expiration tube, KO2 is stored in the storage cavity, the bottom of the storage cavity communicates with the side where the upper end of the oxygen reaction cavity is located, and a feed adjusting mechanism is arranged at the communicating position. The lowerend of the oxygen reaction cavity communicates with the water storage cavity, one side of the water storage cavity is provided with a water supply pipe connected to the side where the upper end of theoxygen reaction cavity is located, and the water supply pipe is provided with a small water pump. By means of the fire protection self-rescue respirator, the supply condition of oxygen reaction raw materials in an oxygen reaction tank can be controlled, the CO2 quantity inspired during inspiration can be reduced, the oxygen inspiration effect for a user can be ensured, the O2 output is adjustableand controllable, the cooling effect of O2 can be optimized, application functions are more perfect, and the practical value is high.

Description

technical field [0001] The invention relates to the field of fire-fighting and escape equipment, in particular to a fire-fighting self-rescue respirator. Background technique [0002] Chemical oxygen fire self-rescuers are usually used when fires or other dangerous situations occur in public places, such as hotels, entertainment venues, mines, military equipment, etc. The core of chemical oxygen fire self-rescuers are oxygen reaction tanks and breathing masks; currently oxygen reaction tanks The structure is directly KO 2 Put it into the tank and separate it from the mesh partition, and exhale carbon dioxide and water with KO 2 The reaction generates oxygen, and there are several defects in this oxygen reaction tank as follows: 1. Because exhalation and inhalation are all carried out in the same chamber of the oxygen reaction tank, it is easy to cause the oxygen reaction tank to break down when exhaling and inhaling. The air is not convected and the breathing is not smooth...

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: 1. During application, CO 2 and water with KO 2 The reaction produces a solid product K 2 CO 3 , K 2 CO 3 will be covered in KO 2 on which resulted in the partial KO 2 If the reaction cannot be completed, only a thin layer of KO can be laid on the mesh separator. 2 , resulting in a large demand for mesh spacers in the oxygen reaction tank, which is also not conducive to the later K 2 CO 3 The discharge; and the solid product K produced by the reaction 2 CO 3 Stay on the corresponding mesh septum, in the later reaction, CO 2 And water must pass through the multi-layer mesh separator and the K on it 2 CO 3 Talent and KO 2 reaction, the reaction efficiency is getting lower and lower; 2. Because the human body produces very little water in respiration, and CO 2 Significantly more, during the reaction, excess CO 2 Move directly to the bottom of the oxygen reaction tank, which may enter the air storage bag and be inhaled by the user along the suction pipe, affecting the user's oxygen inhalation effect; 3. KO in the oxygen reaction tank 2 The amount is constant, and it decreases as the reaction progresses, when the inhaled CO 2 With more water, there may be more KO 2 Simultaneous reaction to generate excess O 2 , too late to inhale O 2 Will escape from the edge of the breathing mask, resulting in waste; 4, its CO 2 There is no switch at the inlet of water and water. When the oxygen reactor is idle, air may enter the oxygen reactor, and the air contains CO 2 and water, will result in KO 2 Accidental consumption; 5. The suction pipe makes O 2 It will not be heated during the transportation process, but the reaction in the oxygen reaction tank will generate more heat, O 2 There is heat before entering the suction pipe, and the heat cannot be transferred, and the user will still feel uncomfortable due to the temperature

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