Oxygen supply device

Abstract

The utility model belongs to the aviation oxygen production technology, and relates to an oxygen supply device, which comprises a compressor, a light-emitting diode (LED) indicating lamp, an oxygen partial pressure sensor, a pressure sensor, a flow sensor and a control function for starting and stopping the compressor. According to the utility model, the solenoid valve is used for controlling the on-off of the gas circuit, the oxygen partial pressure sensor and the pressure sensor are used for measuring the oxygen concentration in the flight environment, and the controller processes feedback signals of the sensors and judges whether to start the compressor for oxygen production. The oxygen supply flow is measured through the flow sensor, and the controller processes feedback signals of the sensor and judges whether the oxygen production power of the compressor is adjusted or not. The portable oxygen supply device solves the problem of insufficient plateau oxygen supply, further supplements the oxygen supply capacity of the oxygen system, improves the reliability of the plateau aircraft oxygen system, and improves the flight safety of the aircraft.

Description

Technical Field

[0001] The utility model belongs to aviation oxygen technology and relates to an oxygen supply device. Background Art

[0002] Oxygen supply technology is an indispensable technology for modern aircraft oxygen systems.

[0003] Given that the current oxygen content in plateaus is low and the concentration cannot meet the normal breathing needs of cabin crew, the limited oxygen supply capacity of plateau aircraft has become a problem that needs to be urgently addressed worldwide. Utility Model Content

[0004] The purpose of the utility model is to provide an oxygen supply device to achieve real-time regulation of the oxygen supply amount in an oxygen system.

[0005] The technical solution of the utility model is:

[0006] The utility model provides an oxygen supply device, comprising: a controller, a compressor, a sieve bed, a mask, a pressure sensor, a flow sensor and an oxygen partial pressure sensor;

[0007] The compressor is used to provide compressed air to the sieve bed, and the sieve bed is used to generate oxygen based on the compressed air and supply it to the mask; the pressure sensor is used to detect the atmospheric pressure of the atmospheric environment where the mask is located; the flow sensor and oxygen partial pressure sensor are used to detect the flow rate and oxygen partial pressure of the product gas provided by the sieve bed;

[0008] The controller is connected to the compressor, pressure sensor, flow sensor, and oxygen partial pressure sensor;

[0009] The controller is used to control the start and stop of the compressor based on the oxygen concentration in the atmospheric environment where the mask is located, measured by the oxygen partial pressure sensor and the pressure sensor;

[0010] The controller is also used to control the oxygen power of the compressor through the oxygen supply flow measured by the flow sensor.

[0011] Optionally, the controller is specifically used to obtain the oxygen supply concentration of the gas output by the sieve bed based on the measurement results of the oxygen partial pressure sensor and the pressure sensor, and compare the oxygen supply concentration with a preset oxygen concentration threshold. If the oxygen supply concentration is lower than the preset oxygen concentration threshold, the controller supplies power to the compressor to perform an oxygen production cycle; if the oxygen supply concentration is not lower than the preset oxygen concentration threshold, the controller cuts off the power supply to the compressor.

[0012] Optionally, the controller is specifically configured to calculate a ratio of an oxygen partial pressure sensor value to a pressure sensor value to obtain an oxygen supply concentration.

[0013] Optionally, the controller is specifically configured to compare a flow detection result of the flow sensor with a preset flow threshold;

[0014] When the flow detection result is less than the preset flow threshold, the controller increases the operating power of the compressor.

[0015] Optionally, the oxygen supply device further includes: an oxygen concentration indicator light m and an oxygen flow indicator light n; the controller is further connected to the oxygen concentration indicator light m and the oxygen flow indicator light n;

[0016] The controller is also used to control the oxygen concentration indicator light m to light up red when the oxygen supply concentration is lower than the preset oxygen concentration threshold; control the oxygen concentration indicator light m to light up green when the oxygen supply concentration is not lower than the preset oxygen concentration threshold; control the oxygen flow indicator light n to light up red when the flow detection result is less than the preset flow threshold; and control the oxygen flow indicator light n to light up green when the flow detection result is not less than the preset flow threshold.

[0017] Optionally, the preset oxygen concentration threshold is 21%.

[0018] Optionally, the preset flow threshold is 3m 3 / min.

[0019] 1) When the oxygen concentration is less than 21%, the controller connects the compressor to the power supply, and the indicator light m lights up red; when the oxygen concentration is greater than 21%, the controller disconnects the compressor from the power supply, and the indicator light m lights up green.

[0020] 2) When the oxygen flow rate is less than 3m 3 / min, the controller will increase the operating power of the compressor through software regulation, and the indicator light n will light red; when the oxygen flow rate is greater than 3m 3 / min, the controller will not interfere with the operation of the compressor, and the indicator light n will light green.

[0021] The present invention provides an oxygen supply device, which is a control device for the oxygen system of a plateau aircraft system. Through circuit design, the system can operate stably and be easily adjusted to meet the adjustment requirements of the oxygen supply function during high-altitude flight. The oxygen system has higher reliability and safety. The compressor, LED indicator light, sensor, solenoid valve, and control circuit are now integrated into one, effectively reducing the size of the oxygen supply machine and improving the portability of the oxygen supply device. The oxygen system controller of the present invention can well realize the adjustment function of the oxygen supply circuit through the control method of circuit and software, meeting the oxygen requirements in actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 Diagram of the interconnection relationship between the portable oxygen supply device controller and the system;

[0024] Figure 2 Principle block diagram of portable oxygen supply device controller. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. The following text is only used to describe one or several specific implementations of the present invention and does not strictly limit the scope of protection specifically claimed by the present invention.

[0026] The oxygen supply device provided by the present invention will be explained below with reference to the accompanying drawings.

[0027] The utility model provides an oxygen supply device, comprising: a controller, a compressor, a sieve bed, a mask, a pressure sensor, a flow sensor and an oxygen partial pressure sensor;

[0028] The compressor is used to provide compressed air to the sieve bed, and the sieve bed is used to generate oxygen based on the compressed air and supply it to the mask; the pressure sensor is used to detect the atmospheric pressure of the atmospheric environment where the mask is located; the flow sensor and oxygen partial pressure sensor are used to detect the flow rate and oxygen partial pressure of the product gas provided by the sieve bed;

[0029] The controller is connected to the compressor, pressure sensor, flow sensor, and oxygen partial pressure sensor;

[0030] The controller is used to control the start and stop of the compressor based on the oxygen concentration in the atmospheric environment where the mask is located, measured by the oxygen partial pressure sensor and the pressure sensor;

[0031] The controller is also used to control the oxygen power of the compressor through the oxygen supply flow measured by the flow sensor.

[0032] Optionally, the controller is specifically used to obtain the oxygen supply concentration of the gas output by the sieve bed based on the measurement results of the oxygen partial pressure sensor and the pressure sensor, and compare the oxygen supply concentration with a preset oxygen concentration threshold. If the oxygen supply concentration is lower than the preset oxygen concentration threshold, the controller supplies power to the compressor to perform an oxygen production cycle; if the oxygen supply concentration is not lower than the preset oxygen concentration threshold, the controller cuts off the power supply to the compressor.

[0033] Optionally, the controller is specifically configured to calculate a ratio of an oxygen partial pressure sensor value to a pressure sensor value to obtain an oxygen supply concentration.

[0034] Optionally, the controller is specifically configured to compare a flow detection result of the flow sensor with a preset flow threshold;

[0035] When the flow detection result is less than the preset flow threshold, the controller increases the operating power of the compressor.

[0036] Optionally, the oxygen supply device further includes: an oxygen concentration indicator light m and an oxygen flow indicator light n; the controller is further connected to the oxygen concentration indicator light m and the oxygen flow indicator light n;

[0037] The controller is also used to control the oxygen concentration indicator light m to light up red when the oxygen supply concentration is lower than the preset oxygen concentration threshold; control the oxygen concentration indicator light m to light up green when the oxygen supply concentration is not lower than the preset oxygen concentration threshold; control the oxygen flow indicator light n to light up red when the flow detection result is less than the preset flow threshold; and control the oxygen flow indicator light n to light up green when the flow detection result is not less than the preset flow threshold.

[0038] Optionally, the preset oxygen concentration threshold is 21%.

[0039] Optionally, the preset flow threshold is 3m 3 / min.

[0040] 1) When the oxygen concentration is less than 21%, the controller connects the compressor to the power supply, and the indicator light m lights up red; when the oxygen concentration is greater than 21%, the controller disconnects the compressor from the power supply, and the indicator light m lights up green.

[0041] 2) When the oxygen flow rate is less than 3m 3 / min, the controller will increase the operating power of the compressor through software regulation, and the indicator light n will light red; when the oxygen flow rate is greater than 3m 3 / min, the controller will not interfere with the operation of the compressor, and the indicator light n will light green.

[0042] like Figure 1 and 2 As shown, the present invention provides controller technology for a portable oxygen supply device, comprising a compressor, an LED indicator, an oxygen partial pressure sensor, a pressure sensor, and a flow sensor. It also includes functions for controlling compressor start and stop, air flow control logic, and an oxygen indicator alarm display. The main functions are to power the compressor, oxygen partial pressure sensor, pressure sensor, and flow sensor, collect and process signals from these sensors, and control the start and stop of the compressor based on the oxygen concentration in the cabin measured by the oxygen partial pressure and pressure sensors. The oxygen flow rate measured by the flow sensor is then used to control the oxygen production power of the compressor.

[0043] The utility model provides a controller for a portable oxygen supply device. The controller is divided into compressor start-stop control functions and gas path on-off control, mainly realizing oxygen supply on-off and oxygen flow control of the oxygen system.

[0044] The portable oxygen supply controller utilizes integrated electronic control technology. Its primary function is to power the compressor, LED indicator, oxygen partial pressure sensor, pressure sensor, and flow sensor. The controller collects and processes signals from these sensors, measures the cabin oxygen concentration based on these sensors, and controls the compressor's start and stop. The oxygen flow rate, measured by the flow sensor, controls the compressor's oxygen production power. Simultaneously, the controller monitors and adjusts oxygen concentration and flow in real time to ensure oxygen output meets predetermined requirements, ensuring safety and reliability for high-altitude flight.

[0045] To control the start and stop of the compressor, a pressure sensor measures the ambient atmospheric pressure, and an oxygen partial pressure sensor measures the oxygen pressure of the oxygen supply's output gas. The controller collects and processes the sensor feedback signals to determine the oxygen concentration of the oxygen supply's output gas. The calculated oxygen concentration is compared with the designed oxygen concentration threshold. If the oxygen concentration is lower than the actual usage requirement, the controller powers the compressor to initiate the oxygen production cycle. If the oxygen concentration reaches the actual usage requirement, the controller shuts off the compressor's power supply.

[0046] The specific implementation steps are as follows:

[0047] 1) The pressure sensor measures the cabin gas pressure;

[0048] 2) The oxygen partial pressure sensor measures the oxygen pressure output by the portable oxygen supply device;

[0049] 3) The controller collects signals from the pressure sensor and oxygen partial pressure sensor;

[0050] 4) The controller calculates the ratio of the oxygen partial pressure sensor value to the pressure sensor value to obtain a value a;

[0051] 5) Compare the result of step 4) with the set threshold b;

[0052] 51) If a<b, the controller turns on the power supply to the compressor;

[0053] 52) If a>b, the controller disconnects the power supply to the compressor.

[0054] The control function of the output gas flow of the portable oxygen supply device is realized: when the output gas flow is too low, the controller can regulate the operating power of the compressor.

[0055] The specific implementation steps are as follows:

[0056] 1) The flow sensor measures the oxygen flow at the output port of the portable oxygen supply device;

[0057] 2) Control the acquisition and processing of the signal from the flow sensor to obtain the value x;

[0058] 3) Compare the value x obtained in step 2) with the designed flow threshold y;

[0059] 31) If x < y, the controller will increase the operating power of the compressor through software control;

[0060] 32) If x>y, the controller will not intervene in the operation of the compressor.

[0061] The function of LED indicator display of the oxygen concentration signal and flow signal of the portable oxygen supply device is realized: the controller judges the oxygen concentration and oxygen flow, and controls the color of the indicator light through software regulation, which can intuitively indicate the current oxygen concentration (indicator light m) and oxygen flow (indicator light n) to the cabin occupants.

[0062] The specific lighting logic of the LED indicator is as follows:

[0063] 1) When the oxygen concentration value a of the portable oxygen supply device is less than b, the indicator light m lights up red;

[0064] 2) When the oxygen concentration value a of the portable oxygen supply device is greater than b, the indicator light m lights up green;

[0065] 3) When the oxygen flow rate value x of the portable oxygen supply device is less than y, the indicator light n lights up red;

[0066] 4) When the oxygen flow value x of the portable oxygen supply device is greater than y, the indicator light n lights up green.

[0067] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An oxygen supply device, characterized in that: include: Controllers, compressors, sieve beds, masks and pressure sensors, flow sensors and oxygen partial pressure sensors; The compressor is used to provide compressed air to the sieve bed, and the sieve bed is used to generate oxygen based on the compressed air and supply it to the mask; the pressure sensor is used to detect the atmospheric pressure of the atmospheric environment where the mask is located; the flow sensor and oxygen partial pressure sensor are used to detect the flow rate and oxygen partial pressure of the product gas provided by the sieve bed; The controller is connected to the compressor, pressure sensor, flow sensor, and oxygen partial pressure sensor; The controller is used to control the start and stop of the compressor based on the oxygen concentration in the atmospheric environment where the mask is located, measured by the oxygen partial pressure sensor and the pressure sensor; The controller is also used to control the oxygen power of the compressor through the oxygen supply flow measured by the flow sensor.

2. The oxygen supply device according to claim 1, characterized in that The controller is specifically used to obtain the oxygen supply concentration of the sieve bed output gas based on the measurement results of the oxygen partial pressure sensor and the pressure sensor, and compare the oxygen supply concentration with a preset oxygen concentration threshold. If the oxygen supply concentration is lower than the preset oxygen concentration threshold, the controller will supply power to the compressor to perform an oxygen production cycle; if the oxygen supply concentration is not lower than the preset oxygen concentration threshold, the controller will cut off the power supply to the compressor.

3. The oxygen supply device according to claim 2, characterized in that The controller is specifically used to calculate the ratio of the oxygen partial pressure sensor value to the pressure sensor value to obtain the oxygen supply concentration.

4. The oxygen supply device according to claim 2, characterized in that The controller is specifically used to compare the flow detection result of the flow sensor with a preset flow threshold; When the flow detection result is less than the preset flow threshold, the controller increases the operating power of the compressor.

5. The oxygen supply device according to claim 4, characterized in that Also includes: Oxygen concentration indicator light m and oxygen flow indicator light n; the controller is also connected to the oxygen concentration indicator light m and the oxygen flow indicator light n; The controller is also used to control the oxygen concentration indicator light m to light up red when the oxygen supply concentration is lower than the preset oxygen concentration threshold; control the oxygen concentration indicator light m to light up green when the oxygen supply concentration is not lower than the preset oxygen concentration threshold; control the oxygen flow indicator light n to light up red when the flow detection result is less than the preset flow threshold; and control the oxygen flow indicator light n to light up green when the flow detection result is not less than the preset flow threshold.

6. The oxygen supply device according to claim 4, characterized in that The preset oxygen concentration threshold is 30L / m 3 .

7. The oxygen supply device according to claim 4, characterized in that The preset flow rate threshold is 20L / min.

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