Cold storage and heat preservation composite cooling tank of positive pressure type oxygen respirator

Abstract

The invention relates to the technical field of personal respiratory protection, in particular to a cold storage and heat preservation composite cooling tank of a positive pressure type oxygen respirator. In order to overcome the defects of cold storage, heat preservation, use and maintenance of a cooler of an existing positive pressure type oxygen respirator, the cold storage and heat preservation composite cooling tank of the positive pressure type oxygen respirator is provided and is assembled in a main machine of the positive pressure type oxygen respirator, freezing maintenance does not need to be mounted and dismounted, in storage and use in the daily environment, phase change cold storage and temperature control can be achieved, heat insulation and heat preservation can also be achieved, the storage and heat preservation composite cooling tank is in a standby state throughout the year and can be rapidly worn at any time for emergency rescue and put into a harmful environment to work, and therefore oxygen inhaled by a wearer within rated protection time is continuously constant in temperature, and breathing is smooth and comfortable. The storage and heat preservation composite cooling tank is mainly characterized in that a double-tank double-layer composite cooling device is composed of a cold storage inner tank, a heat preservation outer tank, a heat insulation and heat preservation material and a temperature control phase change cold storage agent.

Description

technical field [0001] The invention relates to the technical field of personal respiratory protection, in particular to a composite cooling tank for cold storage and heat preservation of a positive pressure oxygen respirator. Background technique [0002] Positive pressure oxygen respirator is a personal respiratory protection product with high safety performance. It is suitable for use by professionals in mining, petrochemical, smelting, shipbuilding, fire rescue and other industries engaged in emergency rescue and disaster relief and in toxic and harmful hypoxic environments. In addition, the process of calcium hydroxide absorbing carbon dioxide generates a lot of heat, which leads to the high temperature of the gas used for inhalation in the air bag or breathing chamber. In order to ensure the comfort of the wearer's breathing, my country's coal industry standard MT867-2000 "Positive Pressure Oxygen Breathing Apparatus" stipulates the requirements for configuring the coole...

AI Technical Summary

Problems solved by technology

But the cooler of known existing positive pressure oxygen respirator exists the deficiencies in aspects of cold storage, heat preservation and use and maintenance: because generally adopting the design structure that the cooling device is separated from the respirator main frame, it is necessary to put ice cubes or blue The ice cooling device is put into the freezer to freeze and keep cold. When emergency rescue needs to be worn, it is taken out of the freezer and then assembled into the main body of the positive pressure oxygen respirator. The operation is cumbersome and inconvenient, and it is difficult to adapt to the emergency emergency rescue. Due to the lack of effective heat insulation measures for the cooling device, the cold storage energy is lost too quickly during wearing and use, and the breathing comfort continues to decrease

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