An oxygen generator oxygen flow control system and method

Abstract

The present invention discloses an oxygenator oxygen flow control system. The system comprises an oxygen flow sensor arranged on a gas transmission pipe, a throttle valve arranged on the gas transmission pipe, a motor of adjusting the on-off of a valve of the throttle valve by the rotation of the motor itself and a control panel. The oxygen flow sensor and the motor are connected with the control panel separately, and the control panel adjusts the oxygen flow according to the oxygen flow detected by the oxygen flow sensor and by controlling the working state of the motor to adjust the on-off of the valve of the throttle valve. The oxygenator oxygen flow control system of the present invention enables the oxygen flow to be controlled real-timely and continuously, an error to be controlled below plus or minus 0.1L / min and the cost to be reduced greatly, is accurate and stable in control result, rapid, time-saving and labor-saving in adjustment process, complete in function, simple in composition, good in system integration degree and low in product difficulty, and has the revolutionary practical significance for the intelligentization upgrading of the oxygenator.

Description

technical field [0001] The invention relates to the field of oxygen flow control of an oxygen generator, in particular to an oxygen flow control system of an oxygen generator and a control method thereof. Background technique [0002] With the continuous improvement and improvement of people's living standards, the demand for health is gradually increasing, and oxygen inhalation will gradually become a means of family and community rehabilitation. The pressure swing adsorption oxygen generator uses molecular sieve physical adsorption and desorption technology to absorb nitrogen in the air and obtain high-purity oxygen after purification. In oxygen therapy and oxygen rehabilitation, too little oxygen inhalation will not achieve the therapeutic effect, and excessive oxygen inhalation will cause harm, so it is very important to control the oxygen flow. In the existing oxygen generator, the flow control scheme of rotameter or solenoid valve plus microhole is generally adopted, ...

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Problems solved by technology

In the existing oxygen generator, the flow control scheme of rotameter or solenoid valve plus microhole is generally adopted, but the adjustment of rotameter is mechanical adjustment, the adjustment process is troublesome and the adjustment result is inaccurate; the flow control of solenoid valve plus microhole is only It can realize the adjustment of the fixed gear of the flow rate, but cannot realize the continuous adjustment of the flow rate, and the cost is relatively high

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