Hybrid oxygen producing reagent for chemical oxygen self-rescuer

A hybrid, self-rescuer technology, used in respirators, oxygen preparation, fire protection equipment, etc., can solve the problems of increased breathing resistance and inspiratory temperature, low oxygen utilization rate, etc., and achieve the effect of reducing costs.

Inactive Publication Date: 2005-07-06
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the mixed oxygen generating agent can reduce the amount of potassium superoxide oxygen generating agent added by about one-third, reducing the cost of oxygen generating agent for chemical oxygen self-rescuers; The oxygen utilization rate of the medicine is low, and the breathing resistance and inhalation temperature increase due to melting in the later stage of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Mixed oxygen generating agent consists of 250g KO 2 Oxygen generator and 70 g dry Ca(OH) 2 Composed of carbon dioxide absorbent, the two are mixed evenly and put into the raw oxygen tank of the 15-minute chemical oxygen self-rescuer, and the performance test is carried out on the human-like breathing device. The frequency of the ventilator is 25n / min, and the breathing volume is 30mL / min. The results are shown in the table below.

[0009] Inspection time (min) 5 10 15 19

[0010] Inspiratory CO 2 Concentration (%) 0.4 0.5 0.8 1.1

[0011] Pulse breathing resistance (mm H 2 O) 40 45 50 70

[0012] Suction temperature (℃) 32 34 37 40

Embodiment 2

[0014] Mixed type oxygen generator consists of 230g KO 2 Oxygen generator and 70 g dry Ca(OH) 2 It is composed of carbon dioxide absorbent, and the two are mixed evenly. Install a layer of 10 grams of dry Ca(OH) on the upper and lower parts of the oxygen tank 2 , the mixed-type oxygen-generating agent is packed in two layers of Ca(OH) 2 Between, performance testing device and condition are the same as embodiment 1.

[0015] Inspection time (min) 5 10 15 20

[0016] Inspiratory CO 2 Concentration (%) 0.4 0.8 1.1 2.2

[0017] Pulse breathing resistance (mm H 2 O) 40 50 50 50

[0018] Suction temperature (℃) 32 34 36 39

Embodiment 3

[0020] Mixed type oxygen generating agent consists of 220g KO 2 Oxygen generator and 90 g dry Ca(OH) 2 It is composed of carbon dioxide absorbent, and the two are mixed evenly. Install a layer of 10 grams of dry Ca(OH) on the upper and lower parts of the oxygen tank 2 Carbon dioxide absorbent, the mixed type oxygen generating agent is packed in two layers of Ca(OH) 2 Between, performance testing device and condition are the same as embodiment 1.

[0021] Inspection time (min) 5 10 15 19

[0022] Inspiratory CO 2 Concentration (%) 1.1 1.1 0.7 1.5

[0023] Pulse breathing resistance (mm H 2 O) 40 45 45 50

[0024] Suction temperature (℃) 32 34 36 38

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PUM

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Abstract

The present invention provides a mixed type oxygen generating pharmaceutical for chemical oxygen self-rescuer, which is composed of flaky or irregular granular potassium superoxide oxygen generating agent and strip, flaky, irregular granular or other shaped dry carbon dioxide absorbent. Part of the carbon dioxide gas breathed out by the wearer is absorbed by the added carbon dioxide absorbent, as a result, the carbon dioxide amount reacting with the potassium superoxide oxygen generating agent is reduced, and the utilization ratio of oxygen produced by the potassium superoxide oxygen generating agent is improved, furthermore, the problems of respiratory resistance and inhalation temperature increase caused by fusion of the potassium superoxide oxygen generating agent, which is used separately in the later stage of the reaction are solved. The added carbon dioxide absorbent includes dry calcium hydroxide, soda lime and their mixture.

Description

technical field [0001] The invention relates to a mixed type oxygen generating agent for a chemical oxygen self-rescuer, which is composed of uniformly mixed flake or irregular granular potassium superoxide oxygen generating agent and strip, flake, irregular granular or other dry carbon dioxide absorbent composition. Background technique [0002] The chemical oxygen self-rescuer is an isolated respiratory protective device for personal escape. It has the advantages of small size, light weight, and no restrictions on the use environment. Wearing it can safely escape from toxic, harmful or hypoxic environments. Therefore, Has been widely used. The oxygen generating agent used in the chemical oxygen self-rescuer is potassium superoxide oxygen generating agent, which reacts with the water vapor and carbon dioxide exhaled by the wearer, and generates oxygen while absorbing carbon dioxide, and the generated oxygen is for the wearer to breathe. 1 mole of carbon dioxide gas reacts...

Claims

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Application Information

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IPC IPC(8): A61M16/10A62D9/00C01B13/02
Inventor 张振华
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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