CN115784165A - Oxygen generation system and control method thereof - Google Patents

Oxygen generation system and control method thereof Download PDF

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Publication number
CN115784165A
CN115784165A CN202211531526.3A CN202211531526A CN115784165A CN 115784165 A CN115784165 A CN 115784165A CN 202211531526 A CN202211531526 A CN 202211531526A CN 115784165 A CN115784165 A CN 115784165A
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oxygen
temperature sensor
compressor
temperature
control module
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CN115784165B (en
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华健
杨库华
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Shenzhen Feellife Atomization Medical Co ltd
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Shenzhen Feellife Atomization Medical Co ltd
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Abstract

The invention relates to the technical field of oxygen generators, and discloses an oxygen generation system, which comprises an oxygen generation shell, a compressor, an electromagnetic valve, a fan, a main control module, a first temperature sensor and a second temperature sensor, wherein the electromagnetic valve is used for controlling oxygen generation, and the fan is used for dissipating heat of the compressor; the system oxygen casing has the oxygen mouth, and first temperature sensor installs at the oxygen mouth, and first temperature sensor is used for detecting out the ambient temperature of oxygen mouth, and second temperature sensor installs at the compressor, and second temperature sensor is used for detecting the inside temperature of compressor, the rotational speed of master control module adjustment fan. The main control module adjusts the rotating speed of the fan based on the data fed back by the first temperature sensor and the second temperature sensor, and adjusts the heat dissipation degree of the compressor through the rotating speed change of the fan, so that the internal temperature of the compressor is adjusted, the internal temperature of the compressor is prevented from being lower than the external temperature and exceeding 5 degrees, condensed water is reduced, and the service life of the molecular sieve is prolonged.

Description

Oxygen generation system and control method thereof
Technical Field
The invention relates to the technical field of oxygen generators, in particular to an oxygen generation system and a control method thereof.
Background
The oxygen generator is a mechanical device capable of preparing oxygen, and can be divided into a molecular sieve oxygen generator, a polymer oxygen-enriched membrane oxygen generator, an electrolytic water oxygen generator and a chemical reaction oxygen generator according to the difference of oxygen generation principles; the molecular sieve type oxygen generator is a common oxygen preparation device, and mainly utilizes the fact that the diffusion rates of two gases on the surface of a carbon molecular sieve are different, the gas (oxygen) with smaller diameter diffuses faster and more enters the solid phase of the molecular sieve; thus, enriched components of nitrogen can be obtained in the gas phase, after a period of time, the adsorption of the molecular sieve to oxygen reaches balance, and according to the characteristic that the adsorption capacity of the carbon molecular sieve to the adsorbed gas is different under different pressures, the pressure is reduced to enable the carbon molecular sieve to remove the adsorption of oxygen, and the process is called regeneration; the pressure swing adsorption process generally uses two adsorption columns in parallel, alternately performing pressure adsorption and decompression regeneration, thereby obtaining a continuous nitrogen stream.
The oxygenerator includes compressor, solenoid valve, fan, adsorption tower and oxygen storage tank, realizes making oxygen in the cooperation of each structure, and the fan plays the radiating effect at the system oxygen in-process, avoids the inside high temperature of oxygenerator, leads to making oxygen efficiency to reduce to and avoid accelerating the ageing of each part, improve life.
At present, the rotating speed of a fan controlled by an oxygenerator system is switched according to a set gear, so that the rotating speed of the fan is controlled by adopting a PWM intelligent temperature control device, and the rotating speed of the fan is adjusted; for example, publication numbers are: 114504927A discloses a low noise molecular sieve type oxygen generator, which adopts a PWM intelligent temperature control device to control the rotating speed of a fan, limits the noise of the fan to the maximum extent while taking heat dissipation into consideration, and effectively solves the problems of heat dissipation and noise reduction of the oxygen generator.
In the prior art, a PWM intelligent temperature control device detects the temperature of a circuit board and the temperature of gas discharged by an oxygen generator, and adjusts the rotating speed of a fan after data comparison; therefore, collected data are not accurate, when the change of the environmental temperature is large, the rotating speed of the fan is not adjusted timely, and when the internal temperature of the compressor is lower than the external temperature and exceeds 5 degrees, condensate water is generated, and the service life of the molecular sieve is influenced.
Disclosure of Invention
The invention aims to provide an oxygen generation system and a control method thereof, and aims to solve the problem that in the prior art, when the internal temperature of a compressor is lower than the external temperature and exceeds 5 degrees, the condensation phenomenon can be generated inside the compressor.
The invention is realized in such a way that an oxygen generation system comprises an oxygen generation shell, a compressor, an electromagnetic valve, a fan, a main control module, a first temperature sensor and a second temperature sensor, wherein the compressor, the electromagnetic valve, the fan and the main control module are respectively arranged on the oxygen generation shell;
the oxygen making casing has the oxygen output mouth, first temperature sensor installs the oxygen output mouth, first temperature sensor is used for detecting the ambient temperature of oxygen output mouth, second temperature sensor installs the compressor, just second temperature sensor is used for detecting the inside temperature of compressor, the host system based on first temperature sensor with the data adjustment that second temperature sensor fed back the rotational speed of fan.
Furthermore, the oxygen generation system comprises a nasal oxygen wearing tube, the outer end of the nasal oxygen wearing tube is used for wearing, the inner end of the nasal oxygen wearing tube is connected with the oxygen outlet nozzle, and the nasal oxygen wearing tube is used for transmitting oxygen to a user; wear nasal oxygen tube and be equipped with breath detection sensor, breath detection sensor is used for detecting user's respiratory frequency.
Furthermore, the oxygen outlet nozzle is provided with an ultrasonic oxygen concentration sensor, the ultrasonic oxygen concentration sensor is used for detecting the oxygen outlet concentration of the oxygen outlet nozzle, the ultrasonic oxygen concentration sensor and the respiration detection sensor are respectively electrically connected with the main control module and are arranged, and the main control module controls the opening time of the electromagnetic valve based on the feedback data of the ultrasonic oxygen concentration sensor and the respiration detection sensor.
Further, a third temperature sensor is installed on the oxygen outlet nozzle, the third temperature sensor is used for detecting the ambient temperature around the oxygen outlet nozzle, a shutdown threshold is preset on the third temperature sensor, and the shutdown threshold ranges from 80 ℃ to 100 ℃, or 100 ℃; the third temperature sensor with the host system is electric connection and arranges, works as the ambient temperature of oxygen outlet nozzle is greater than when shutting down the threshold value, host system control system oxygen system is the shutdown state.
Further, system oxygen casing is including installing the frame, the compressor is installed install the frame, the compressor has the seat face, the frame is personally submitted the slope and is arranged, the fan is the slope form and installs at the seat face, the fan with the compressor is the coincide and arranges, just the fan with the compressor is the intercommunication and arranges.
Further, the main control module is vertically arranged on the installation frame, the main control module and the compressor are arranged in a superposed mode, the compressor is provided with a machine surface, and the machine surface and the main control module are arranged in a contact mode; the second temperature sensor is arranged on the machine surface.
Furthermore, the oxygen outlet nozzle is provided with a conduction cover, the conduction cover is annularly arranged and used for conducting heat, the conduction cover and the inner wall of the oxygen outlet nozzle are attached and arranged, the first temperature sensor comprises a detection sheet, and the detection sheet and the conduction cover are arranged in an overlapped mode.
The control method of the oxygen generation system is used for controlling the oxygen generation system and comprises the following steps:
the main control module dynamically controls the rotating speed of the fan according to the detected temperature data fed back by the first temperature sensor and the second temperature sensor;
when the temperature detected by the second temperature sensor is higher than the temperature detected by the first temperature sensor, the main control module increases the rotating speed of the fan;
when the temperature detected by the second temperature sensor is equal to the temperature detected by the first temperature sensor, the main control module keeps the rotating speed of the fan;
and when the temperature detected by the second temperature sensor is less than the temperature detected by the first temperature sensor, the main control module reduces the rotating speed of the fan.
Furthermore, the main control module controls the opening time of the electromagnetic valve according to the respiratory frequency provided by the received respiratory detection sensor and the oxygen concentration provided by the ultrasonic oxygen concentration sensor, and the oxygen concentration of the oxygen discharged from the oxygen discharge nozzle is kept to be greater than 90%.
Further, if the ambient temperature of the oxygen outlet nozzle suddenly and indirectly rises to more than 100 ℃, the main control module judges that open fire or fire occurs; the main control module can be immediately shut down and stop working.
Compared with the prior art When the oxygen generation system is used, external air enters the compressor, the compressor performs a pressurizing effect on the entering air, meanwhile, the second temperature sensor detects the temperature in the pipe of the compressor and feeds the temperature back to the main control module, the extruded air enters the adsorption tower to realize nitrogen-oxygen separation, oxygen is controlled to be discharged along the oxygen outlet nozzle through the electromagnetic valve, meanwhile, the first temperature sensor detects the ambient temperature of the oxygen outlet nozzle, then the rotating speed of the fan is adjusted based on data fed back by the first temperature sensor and the second temperature sensor, the heat dissipation degree of the compressor is adjusted through the rotating speed change of the fan, so that the internal temperature of the compressor is adjusted, the internal temperature of the compressor is prevented from being lower than the external temperature by more than 5 degrees, the generation of condensed water is reduced, and the service life of the molecular sieve is prolonged.
Drawings
FIG. 1 is a schematic flow diagram of a method of controlling an oxygen generation system provided by the present invention;
FIG. 2 is a schematic connection diagram of an oxygen generation system provided by the present invention;
FIG. 3 is a schematic diagram showing the relationship between temperature and fan speed for an oxygen generation system provided by the present invention;
FIG. 4 is a schematic diagram of the respiration rate versus electromagnetic time for an oxygen generation system provided by the present invention;
FIG. 5 is a schematic cross-sectional view of an embodiment of an oxygen generation system provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of implementations of the invention refers to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to the drawings, there is shown a preferred embodiment of the present invention.
The oxygen generation system comprises an oxygen generation shell 7, a compressor 1, an electromagnetic valve, a fan 6, a main control module 2, a first temperature sensor 4 and a second temperature sensor 5, wherein the compressor 1, the electromagnetic valve, the fan 6 and the main control module 2 are respectively arranged on the oxygen generation shell 7, the compressor 1, the electromagnetic valve, the fan 6, the first temperature sensor 4 and the second temperature sensor 5 are respectively and electrically connected with the main control module 2, the electromagnetic valve is used for controlling oxygen generation, and the fan 6 is used for dissipating heat of the compressor 1;
oxygen generation casing 7 has oxygen outlet 3, and first temperature sensor 4 is installed at oxygen outlet 3, and first temperature sensor 4 is used for detecting out the ambient temperature of oxygen outlet 3, and second temperature sensor 5 is installed at compressor 1, and second temperature sensor 5 is used for detecting the inside temperature of compressor 1, and main control module 2 is based on the rotational speed of the data adjustment fan 6 of first temperature sensor 4 and the feedback of second temperature sensor 5.
Foretell oxygen generating system, during the use, outside air gets into compressor 1, compressor 1 plays the pressurization effect to the entering air, and simultaneously, second temperature sensor 5 detects intraductal temperature feedback to host system 2 of compressor 1, the extrusion air gets into the adsorption tower and realizes the nitrogen oxygen separation, discharge along oxygen outlet nozzle 3 through solenoid valve control oxygen, and simultaneously, first temperature sensor 4 detects out the ambient temperature of oxygen nozzle 3, then, the rotational speed of data adjustment fan 6 based on first temperature sensor 4 and the feedback of second temperature sensor 5, the rotation speed change through fan 6 realizes adjusting compressor 1's heat dissipation degree, thereby adjust compressor 1's inside temperature, avoid compressor 1's inside temperature to be less than outside temperature and exceed 5, thereby reduce the comdenstion water production, improve the molecular sieve life-span.
The oxygen generation system comprises a nasal oxygen wearing tube, the outer end of the nasal oxygen wearing tube is used for wearing, the inner end of the nasal oxygen wearing tube is connected with the oxygen outlet nozzle 3, and the nasal oxygen wearing tube is used for transmitting oxygen to a user; wear nasal oxygen tube and be equipped with the breathing and detect the sensor, breathe the respiratory rate that the detection sensor is used for detecting the user.
Therefore, under the action of the respiration detection sensor, the respiration frequency of the user is detected, and the consumption of oxygen is detected.
The nasal oxygen tube comprises an oxygen tube and a nasal plug part, the oxygen tube is used for conveying oxygen produced by the oxygen production system, the inner end of the oxygen tube is connected and communicated with the oxygen production system, the outer end of the oxygen tube is connected and communicated with the nasal plug part, the nasal plug part is used for being worn on the nose of a user, the respiration detection sensor is arranged on the inner side of the nasal plug part, and the detection position of the respiration detection sensor is arranged in parallel and level with the position of an oxygen outlet of the nasal plug part; in this way, the breath detection sensor is facilitated to detect the oxygen content of the nasal plug portion, and to detect the breathing frequency of the user.
The breath detection sensor and the main control module 2 are arranged in a signal transmission manner, so that the breath detection sensor feeds detected data back to the main control module 2.
The oxygen outlet nozzle 3 is indirectly connected with the nasal oxygen wearing tube through a luer connector, so that oxygen transmission between the oxygen outlet nozzle 3 and the nasal oxygen wearing tube is realized.
The oxygen outlet nozzle 3 is provided with an ultrasonic oxygen concentration sensor, the ultrasonic oxygen concentration sensor is used for detecting the oxygen outlet concentration of the oxygen outlet nozzle 3, the ultrasonic oxygen concentration sensor and the respiration detection sensor are respectively and electrically connected with the main control module 2 to be arranged, and the main control module 2 controls the opening time of the electromagnetic valve based on the feedback data of the ultrasonic oxygen concentration sensor and the respiration detection sensor.
Therefore, the main control module 2 controls the opening duration of the electromagnetic valve based on the data fed back by the ultrasonic oxygen concentration sensor and the respiration detection sensor, so as to detect and control the oxygen outlet degree.
Detection principle of the ultrasonic oxygen concentration sensor: the concentration and flow rate of the binary gas are detected by a time difference method, when an ultrasonic signal propagates on the upstream side in a direction opposite to the direction of the medium, the propagation time T1 is increased, and when the ultrasonic signal propagates on the downstream side in the same direction as the direction of the medium, the propagation time T2 is shortened; that is, the flowing medium delays or accelerates the ultrasonic signal, and the time of T1 and T2 and the pipe diameter can be used to calculate the concentration and flow rate of the binary gas.
The oxygen outlet nozzle 3 is provided with a third temperature sensor which is used for detecting the ambient temperature around the oxygen outlet nozzle 3, and the third temperature sensor is preset with a shutdown threshold value, wherein the shutdown threshold value range is 80-100 ℃, or 100 ℃; the third temperature sensor is electrically connected with the main control module 2, and when the ambient temperature of the oxygen outlet nozzle 3 is greater than the shutdown threshold value, the main control module 2 controls the oxygen generation system to be in a shutdown state.
When the oxygen generator works, high-concentration oxygen can be produced, so that the oxygen generator is strictly forbidden to work under the open fire or fire environment, and when the third temperature sensor suddenly detects that the environmental temperature of the circumference of the oxygen outlet nozzle 3 is greater than the shutdown threshold value, the oxygen generator is automatically shut down, and the use safety of an oxygen generation system is improved.
The oxygen generation shell 7 comprises a mounting frame 71, the compressor 1 is mounted on the mounting frame 71, the compressor 1 is provided with a machine seat surface, the machine seat surface is obliquely arranged, the fan 6 is obliquely mounted on the machine seat surface, the fan 6 and the compressor 1 are arranged in an overlapped mode, and the fan 6 and the compressor 1 are arranged in a communicated mode.
Like this, when fan 6 applyed suction, played the standard effect to the air of suction, made the air that gets into compressor 1 more even, and the flow direction is standard, and is more even to whole compressor 1's radiating effect, improves the radiating effect.
The main control module 2 is vertically arranged on the installation frame 71, the main control module 2 and the compressor 1 are arranged in an overlapped mode, the compressor 1 is provided with a machine surface, and the machine surface and the main control module 2 are arranged in a contact mode; the second temperature sensor 5 is arranged on the machine surface; the machine surface not only receives the heat of the compressor 1 and synchronously receives the heat of the main control module 2, but also effectively detects the highest temperature of the equipment like the second temperature sensor 5, and improves the subsequent accuracy of adjusting the rotating speed of the fan 6.
Or, compressor 1 includes the gas-supply pipe, and the gas-supply pipe is used for exporting high-pressure air to the adsorption tower, makes oxygen operation through the adsorption tower again, and second temperature sensor 5 installs at the gas-supply pipe, detects the temperature of gas-supply pipe through second temperature sensor 5 to through the contrast of gas-supply pipe and outside temperature, the rotational speed of adjustment fan 6.
The oxygen outlet nozzle 3 is provided with a conduction cover which is annularly arranged and used for heat conduction, the conduction cover is attached to the inner wall of the oxygen outlet nozzle 3 and arranged, the first temperature sensor 4 comprises a detection sheet, and the detection sheet and the conduction cover are arranged in an overlapped mode.
Thus, under the action of the conduction cover, the conduction cover is used for feeding back the temperature of the oxygen outlet nozzle 3, so that the first temperature sensor 4 can conveniently detect the temperature of the oxygen outlet nozzle 3.
The frequency or the rotational speed of the compressor 1 is kept constant each time the rotational speed of the fan 6 is adjusted, so that a change in the rotational speed of the fan 6 has an adjusting effect on the temperature inside the compressor 1.
The control method of the oxygen generation system is used for controlling the oxygen generation system and comprises the following steps:
the main control module 2 dynamically controls the rotating speed of the fan 6 according to the detected temperature data fed back by the first temperature sensor 4 and the second temperature sensor 5;
when the temperature detected by the second temperature sensor 5 is higher than the temperature detected by the first temperature sensor 4, the main control module 2 increases the rotating speed of the fan 6;
when the temperature detected by the second temperature sensor 5 is equal to the temperature detected by the first temperature sensor 4, the main control module 2 keeps the rotating speed of the fan 6;
when the temperature detected by the second temperature sensor 5 is lower than the temperature detected by the first temperature sensor 4, the main control module 2 reduces the rotation speed of the fan 6.
Like this, host system 2 is according to the detection temperature data that first temperature sensor 4 and second temperature sensor 5 fed back, and the inside temperature of avoiding compressor 1 is less than external temperature and exceeds 5 according to the rotational speed of dynamic control fan 6 to avoid compressor 1's inside to produce the condensation phenomenon, improve compressor 1's life.
The main control module 2 controls the opening time of the electromagnetic valve according to the received respiratory frequency provided by the respiratory detection sensor and the oxygen concentration provided by the ultrasonic oxygen concentration sensor, and the oxygen concentration of the oxygen discharged from the oxygen discharge nozzle 3 is kept to be greater than 90%.
If the ambient temperature of the oxygen outlet nozzle 3 suddenly and indirectly rises to more than 100 ℃, the main control module 2 judges that open fire or fire occurs; the main control module 2 is immediately shut down and stops working; when the oxygen generator works, high-concentration oxygen can be produced, so that the oxygen generator is strictly forbidden to work in open fire or fire environment, and when the ambient temperature of the circumference of the oxygen outlet nozzle 3 is suddenly detected to be greater than the shutdown threshold value, the oxygen generator is automatically shut down, and the use safety of an oxygen generation system is improved.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (10)

1. The oxygen generation system is characterized by comprising an oxygen generation shell, a compressor, an electromagnetic valve, a fan, a main control module, a first temperature sensor and a second temperature sensor, wherein the compressor, the electromagnetic valve, the fan and the main control module are respectively arranged on the oxygen generation shell, the compressor, the electromagnetic valve, the fan, the first temperature sensor and the second temperature sensor are respectively and electrically connected with the main control module, the electromagnetic valve is used for controlling oxygen generation, and the fan is used for dissipating heat of the compressor;
the oxygen generation shell is provided with an oxygen outlet nozzle, a first temperature sensor is installed on the oxygen outlet nozzle, the first temperature sensor is used for detecting the ambient temperature of the oxygen outlet nozzle, a second temperature sensor is installed on the compressor, the second temperature sensor is used for detecting the internal temperature of the compressor, and the main control module is based on the first temperature sensor and the data fed back by the second temperature sensor to adjust the rotating speed of the fan.
2. The oxygen generation system of claim 1, comprising a nasal wear tube, an outer end of the nasal wear tube configured to be worn, an inner end of the nasal wear tube configured to be coupled to the oxygen outlet, the nasal wear tube configured to deliver oxygen to a user; wear nasal oxygen tube and be equipped with breath detection sensor, breath detection sensor is used for detecting user's respiratory frequency.
3. The oxygen generation system as set forth in claim 2, wherein the oxygen outlet nozzle is provided with an ultrasonic oxygen concentration sensor for detecting the oxygen outlet concentration of the oxygen outlet nozzle, the ultrasonic oxygen concentration sensor and the respiration detection sensor are respectively arranged in electrical connection with the main control module, and the main control module controls the opening duration of the electromagnetic valve based on the feedback data of the ultrasonic oxygen concentration sensor and the respiration detection sensor.
4. The oxygen generation system as recited in claim 1, characterized in that the oxygen outlet nozzle is provided with a third temperature sensor for detecting the ambient temperature around the oxygen outlet nozzle, the third temperature sensor is preset with a shutdown threshold value, the shutdown threshold value ranges from 80 to 100 degrees centigrade, or the shutdown threshold value ranges from 100 degrees centigrade; the third temperature sensor with the host system is electric connection and arranges, works as the ambient temperature of oxygen outlet nozzle is greater than when shutting down the threshold value, host system control system oxygen system is the shutdown state.
5. The oxygen generation system of claim 1, wherein the oxygen generation housing comprises a mounting at which the compressor is mounted, the compressor having a deck surface, the deck surface being in an inclined arrangement, the fan being obliquely mounted at the deck surface, the fan being in a stacked arrangement with the compressor, and the fan being in a communicating arrangement with the compressor.
6. The oxygen generation system of claim 1, wherein the master control module is vertically mounted on the mounting rack and the master control module is in a stacked arrangement with the compressor, the compressor having a deck that is in an abutting arrangement with the master control module; the second temperature sensor is arranged on the machine surface.
7. The oxygen generation system of claim 1, wherein the oxygen outlet nozzle is provided with a conductive cover, the conductive cover is arranged in a ring shape and is used for heat conduction, the conductive cover is arranged in a fitting manner with the inner wall of the oxygen outlet nozzle, and the first temperature sensor comprises a detection sheet, and the detection sheet is arranged in a superposition manner with the conductive cover.
8. The method for controlling an oxygen generation system according to any one of claims 1 to 6, comprising:
the main control module dynamically controls the rotating speed of the fan according to the detected temperature data fed back by the first temperature sensor and the second temperature sensor;
when the temperature detected by the second temperature sensor is higher than the temperature detected by the first temperature sensor, the main control module increases the rotating speed of the fan;
when the temperature detected by the second temperature sensor is equal to the temperature detected by the first temperature sensor, the main control module keeps the rotating speed of the fan;
and when the temperature detected by the second temperature sensor is less than the temperature detected by the first temperature sensor, the main control module reduces the rotating speed of the fan.
9. The oxygen generation system control method as recited in claim 8, wherein the main control module controls the opening time of the electromagnetic valve according to the received breathing frequency provided by the breathing detection sensor and the oxygen concentration provided by the ultrasonic oxygen concentration sensor, and the oxygen concentration of the oxygen discharged from the oxygen discharge nozzle is kept to be greater than 90%.
10. The oxygen generation system control method as set forth in claim 8, wherein the main control module determines that there is an open fire or fire if the ambient temperature of the oxygen outlet nozzle suddenly and indirectly rises by more than 100 degrees; the main control module can be immediately shut down and stops working.
CN202211531526.3A 2022-12-01 2022-12-01 Oxygen generation system and control method thereof Active CN115784165B (en)

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CN116651139A (en) * 2023-06-29 2023-08-29 湖南比扬医疗科技有限公司 Oxygenerator and control method thereof

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CN215181460U (en) * 2021-07-26 2021-12-14 深圳三爱健康科技有限公司 Oxygenerator and intelligent running state monitored control system thereof
CN114209950A (en) * 2021-12-20 2022-03-22 北京谊安健康科技有限公司 Dual-mode oxygen generator and oxygen supply method thereof
CN114504927A (en) * 2022-03-07 2022-05-17 可孚医疗科技股份有限公司 Low-noise molecular sieve type oxygen generator

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CN103626132A (en) * 2012-08-22 2014-03-12 张碧波 Portable oxygenerator suitable for plateau section
CN204111315U (en) * 2014-09-16 2015-01-21 保定迈卓医疗器械有限公司 Three-tower structure molecular sieve oxygen generating system
CN205634882U (en) * 2016-03-03 2016-10-12 深圳市德达电器有限公司 Novel oxygenerator
CN210764321U (en) * 2019-10-30 2020-06-16 威海东兴电子有限公司 Oxygen generation system with intelligent data monitoring self-adjusting and self-adapting functions
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116651139A (en) * 2023-06-29 2023-08-29 湖南比扬医疗科技有限公司 Oxygenerator and control method thereof

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