Modular oxygen and pressure charging filling system

Abstract

The application discloses a modular oxygen supply and pressurized filling system, comprising: an oxygen production module for pressurizing oxygen output by the oxygen production module; a gas outlet of the pressurizing module is connected with a high-pressure gas storage module to store the pressurized oxygen; a gas outlet of the high-pressure gas storage module is connected with a rapid filling module, the rapid filling module is connected with a portable oxygen cylinder to fill the portable oxygen cylinder with oxygen through the rapid filling module; an intelligent oxygen saving module is connected with an oxygen inhalation terminal; and oxygen is delivered to the oxygen inhalation terminal through the intelligent oxygen saving module. The application has multiple storage and supply modes and various oxygen supply scene forms. The problems of single oxygen supply form, long oxygen production time, slow efficiency and the like of the previous oxygen production system are solved, the overall size of the system is small, the performance is reliable, the operation is simple, and the failure rate is low. The product function is modular, which is convenient for installation, operation and after-sales maintenance. The technical limitation and cost of oxygen filling are greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oxygen production and filling, in particular to a modular oxygen supply and pressurized filling system. BACKGROUND

[0002] Oxygen is an important substance for human survival, and sufficient oxygen source under high-altitude special environment can improve human physiology and psychology, reduce the stress response of respiratory system, circulatory system, digestive system and nervous system, and is widely used in health care under plain environment, not only becoming an important tool for maintaining life, but also relaxing nerves and relieving nerve fatigue, improving brain oxygen supply and regulating brain nervous system function to a certain extent.

[0003] The oxygen supplement equipment of the army, hospital, first-aid station and sanatorium in high-altitude or underdeveloped areas still has some disadvantages, most of the oxygen supply systems on the market are made of containers, which are not convenient for transportation and installation, are greatly limited by highland topography, and have single function configuration, large system shape and low space utilization rate. At the same time, the oxygen production method is not suitable for rapid mobile oxygen production requirement, and the oxygen production time is long and the efficiency is slow. SUMMARY

[0004] The present application provides a modular oxygen supply and pressurized filling system to overcome the above technical problems.

[0005] In order to achieve the above purpose, the technical scheme of the present application is:

[0006] A modular oxygen supply and pressurized filling system, comprising: a general control module, an oxygen production module, a pressurization module, a high-pressure gas storage module, a rapid filling module and an intelligent oxygen saving module.

[0007] The gas outlet of the oxygen production module is connected with the pressurization module to pressurize the oxygen output by the oxygen production module.

[0008] The gas outlet of the pressurization module is connected with the high-pressure gas storage module to store the pressurized oxygen.

[0009] The gas outlet of the high-pressure gas storage module is connected with the rapid filling module, and the rapid filling module is connected with the portable oxygen cylinder to fill the portable oxygen cylinder with oxygen through the rapid filling module.

[0010] The intelligent oxygen saving module is connected with the high-pressure gas storage module and the oxygen production module respectively, and the intelligent oxygen saving module is connected with the oxygen inhalation terminal to deliver oxygen to the oxygen inhalation terminal through the intelligent oxygen saving module.

[0011] The oxygen production module, the pressurization module, and the high-pressure gas storage module are connected with the general control module to be controlled by the general control module.

[0012] Further, the low-pressure gas storage module is further included; the gas outlet end of the oxygen production module is connected with the gas inlet end of the low-pressure gas storage module, and the gas outlet end of the low-pressure gas storage module is connected with the pressurization module and the intelligent oxygen saving module respectively;

[0013] The low-pressure gas storage module is connected with the general control module.

[0014] Further, the oxygen production module includes a plurality of oxygen production unit modules, and the oxygen production unit module includes an oxygen production unit, an oxygen concentration sensor, and a switching valve.

[0015] The oxygen production unit is connected with the switching valve, and the switching valve is connected with the low-pressure gas storage module.

[0016] The oxygen concentration sensor is arranged between the oxygen production unit and the switching valve, and the oxygen production unit and the oxygen concentration sensor are connected with the general control module.

[0017] Further, the low-pressure gas storage module includes a high-concentration buffer tank and a low-concentration buffer tank, and a first pressure detector and a second pressure detector.

[0018] The high-concentration buffer tank and the low-concentration buffer tank are connected with the oxygen production module, the high-concentration buffer tank is connected with the pressurization module through a pressurization pipeline, and the low-concentration buffer tank is provided with a low-pressure pipeline at the gas outlet end, the low-pressure pipeline and the pressurization pipeline converge at the general oxygen supply pipeline, and the general oxygen supply pipeline is connected with the intelligent oxygen saving module.

[0019] The low-pressure pipeline is provided with the first pressure detector, and the pressurization pipeline is provided with the second pressure detector; the first pressure detector and the second pressure detector are electrically connected with the general control module.

[0020] Further, the pressurization module includes a plurality of pressurization units; the gas inlet end of the pressurization unit is connected with the high-concentration buffer tank, and the gas outlet end of the pressurization unit is connected with the high-pressure gas storage module.

[0021] The pressurization unit is electrically connected with the general control module.

[0022] Further, the general oxygen supply pipeline is provided with a fourth pressure detector and a flow meter; the fourth pressure detector and the flow meter are electrically connected with the general control module.

[0023] Further, the high-pressure gas storage module includes a flow convergence mechanism, a plurality of high-pressure gas storage units, and a high-pressure pressure reducer.

[0024] The confluence mechanism is connected with the gas outlet end of the supercharging module, and the high-pressure gas storage unit is connected with the confluence mechanism;

[0025] A third pressure detector is arranged between the high-pressure gas storage unit and the confluence mechanism, and the third pressure detector is electrically connected with the general control module;

[0026] A high-pressure pressure relief mechanism is arranged on the confluence mechanism, and the high-pressure pressure relief mechanism is electrically connected with the general control module;

[0027] The confluence mechanism is connected with the high-pressure pressure reducer, and the high-pressure pressure reducer is connected with the intelligent oxygen-saving module;

[0028] The confluence mechanism is connected with the rapid filling module.

[0029] Further, the confluence mechanism is respectively provided with an oxygen cylinder filling interface, an intelligent oxygen-saving interface and a portable oxygen cylinder filling interface;

[0030] The gas inlet of the high-pressure gas storage unit is connected with the confluence mechanism through the oxygen cylinder filling interface;

[0031] The high-pressure pressure reducer is connected with the confluence mechanism through the intelligent oxygen-saving interface;

[0032] The rapid filling module is connected with the confluence mechanism through the portable oxygen cylinder filling interface.

[0033] Further, the intelligent oxygen-saving module comprises a plurality of oxygen-saving control units; the gas inlet end of the oxygen-saving control unit is connected with the general oxygen supply pipeline, and the gas outlet end is connected with the oxygen inhalation terminal for direct use of the oxygen inhalation terminal.

[0034] Further, the control method of the intelligent oxygen-saving module for delivering oxygen to the oxygen inhalation terminal is as follows:

[0035] S1: obtaining the oxygen flow rate V1 in the general oxygen supply pipeline through the flow meter;

[0036] S2: when V1>Vbase, obtaining the oxygen inhalation capacity Vtidal of the oxygen inhalation terminal and the time Ttidal during which V1>Vbase; wherein Vbase is the baseline of the expiratory phase flow rate,

[0037] S3: if Ttidal>Tset and VtidalVtrigger, the intelligent oxygen-saving module is not started, and the first starting capacity Vtrigger_1 of the intelligent oxygen-saving module is obtained; wherein Tset is a set detection time threshold, and Vtrigger is the current set oxygen inhalation capacity threshold;

[0038] Otherwise, the intelligent oxygen saving module is started, and oxygen is delivered to the oxygen inhalation terminal;

[0039] The method for obtaining the first starting capacity Vtrigger_1 of the intelligent oxygen saving module is:

[0040] Vtrigger_1=Vtidal*K1, K1 is the first oxygen supply coefficient, 60%≤K1<100%;

[0041] S4: obtaining the time t of oxygen delivery of the oxygen inhalation terminal, when t>=delivery time threshold, stopping delivering oxygen to the oxygen inhalation terminal;

[0042] S5: obtaining the inhalation time Tinhale of the current breath of the oxygen inhalation terminal, if Tinhale

[0043] The method for obtaining the second starting flow rate Vtrigger_2 of the intelligent oxygen saving module is:

[0044] Vtrigger_2=Vtidal*K2, K2 is the second oxygen supply coefficient, 100%≤K<120%;

[0045] S6: repeating S2-S5 until the oxygen inhalation terminal stops inhaling oxygen.

[0046] Beneficial effects: the modular oxygen supply and saving system of the present application can realize oxygen production, pressurized filling and oxygen storage and supply functions at the same time through the setting of the high-pressure gas storage module, the rapid filling module and the intelligent oxygen saving module, and has multiple storage and supply modes and diversified oxygen supply scene forms. The problems of single oxygen supply form, long oxygen production time and slow efficiency of the previous oxygen production system are solved, and the system has small overall size, reliable performance, simple operation and low failure rate. The product function is modularized, which is convenient for installation, operation and after-sales maintenance. The technical limitations and costs of oxygen filling are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0048] Figure 1 The structural block diagram of the modular oxygen supply and saving system of the present application is shown in the figure;

[0049] Figure 2A schematic diagram of a modular oxygen supply and pressurized filling system according to an embodiment of the present application;

[0050] Figure 3 A schematic diagram of a system for directly connecting an oxygen generating unit and a pressurizing unit according to a first method of use in an embodiment of the present application;

[0051] Figure 4 A schematic diagram of a system for directly connecting an oxygen generating unit and a pressurizing unit according to a second method of use in an embodiment of the present application;

[0052] Figure 5 A schematic diagram of a system for directly connecting an oxygen generating unit and a pressurizing unit according to a third method of use in an embodiment of the present application;

[0053] Figure 6 A schematic diagram of a system for directly connecting an oxygen generating unit and a pressurizing unit according to a fourth method of use in an embodiment of the present application;

[0054] Figure 7 A flow chart of a control method for delivering oxygen from a smart oxygen saving module to an oxygen inhalation terminal. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0056] The present embodiment provides a modular oxygen supply and pressurized filling system, as shown in Figure 1 and 2 , comprising: a general control module 1, an oxygen generating module 2, a pressurizing module 3, a high-pressure gas storage module 5, a fast filling module 6, and a smart oxygen saving module 7.

[0057] The gas outlet of the oxygen generating module 2 is connected to the pressurizing module 3 to pressurize the oxygen output by the oxygen generating module.

[0058] The gas outlet of the pressurizing module 3 is connected to the high-pressure gas storage module 5 to store the pressurized oxygen.

[0059] The gas outlet of the high-pressure gas storage module 5 is connected to the fast filling module 6, and the fast filling module 6 is connected to the portable oxygen cylinder 10 to fill the portable oxygen cylinder 10 with oxygen through the fast filling module 6.

[0060] The intelligent oxygen saving module 7 is connected with the high-pressure gas storage module 5 and the oxygen generating module 2 respectively, and the intelligent oxygen saving module 7 is connected with an oxygen inhalation terminal; oxygen is transported to the oxygen inhalation terminal through the intelligent oxygen saving module 7.

[0061] The oxygen generating module 2, the pressure increasing module 3 and the high-pressure gas storage module 5 are connected with the general control module 1, so as to be controlled through the general control module 1.

[0062] Preferably, a low-pressure gas storage module 4 is further included; the gas outlet of the oxygen generating module 2 is connected with the gas inlet of the low-pressure gas storage module 4, and the gas outlet of the low-pressure gas storage module 4 is connected with the pressure increasing module 3 and the intelligent oxygen saving module 7 respectively.

[0063] The low-pressure gas storage module 4 is connected with the general control module 1.

[0064] Preferably, the oxygen generating module 2 includes a plurality of groups of oxygen generating unit modules, and each group of oxygen generating unit modules includes an oxygen generating unit 201, an oxygen concentration sensor 202 and a switching valve 203.

[0065] The oxygen generating unit 201 is connected with the switching valve 203, and the switching valve 203 is connected with the low-pressure gas storage module 4.

[0066] The oxygen concentration sensor 202 is arranged between the oxygen generating unit 201 and the switching valve 203, and the oxygen generating unit 201 and the oxygen concentration sensor 202 are connected with the general control module 1.

[0067] Preferably, the low-pressure gas storage module 4 includes a high-concentration buffer tank 401 and a low-concentration buffer tank 403, and a first pressure detector 404 and a second pressure detector 402 are arranged.

[0068] The high-concentration buffer tank 401 and the low-concentration buffer tank 403 are connected with the oxygen generating module 2, the high-concentration buffer tank 401 is connected with the pressure increasing module 3 through a pressure increasing pipeline 11, and the gas outlet of the low-concentration buffer tank 403 is provided with a low-pressure pipeline 121, the low-pressure pipeline 121 and the pressure increasing pipeline 11 converge at a general oxygen supply pipeline 12, and the general oxygen supply pipeline 12 is connected with the intelligent oxygen saving module 7.

[0069] The low-pressure pipeline 121 is provided with the first pressure detector 404, and the pressure increasing pipeline 11 is provided with the second pressure detector 402; the first pressure detector 404 and the second pressure detector 402 are electrically connected with the general control module 1.

[0070] Preferably, the general oxygen supply pipeline 12 is provided with a fourth pressure detector 8 and a flow meter 9; the fourth pressure detector 8 and the flow meter 9 are electrically connected with the general control module 1.

[0071] Specifically, by detecting the flow value of the total oxygen supply pipeline 12, and comparing the pressure value detected by the fourth pressure detector 8 with the pressure values of the second pressure detector 402 and the first pressure detector 404, the total control module 1 can control whether the oxygen production module 2 starts the oxygen production function.

[0072] Specifically, the oxygen production module 2 has a plurality of groups of the oxygen production unit modules connected in parallel; the oxygen concentration sensor 202 and the switching valve 203 are sequentially arranged on the oxygen output gas path of the oxygen production unit 201; the switching valve 203 is in the form of a two-position three-way joint, one end of the gas inlet is connected to the oxygen production unit 201, and the other two ends are gas outlet ends, which are respectively connected to the gas inlets of the high-concentration buffer tank 401 and the low-concentration buffer tank 403; the oxygen concentration sensor 202 detects the oxygen concentration of the oxygen production unit 201, and according to the detected oxygen concentration value, controls the switching action of the switching valve 203, so that the low-concentration oxygen enters the low-concentration buffer tank 403, and the high-concentration oxygen enters the high-concentration buffer tank 401; the first pressure detector 404 and the second pressure detector 402 are respectively arranged at the gas outlets of the low-concentration buffer tank 403 and the high-concentration buffer tank 401, which can detect the pressure values at the gas outlets and feed the detection signals of the first pressure detector 404 and the second pressure detector 402 to the total control module 1.

[0073] Preferably, the booster module 3 includes a plurality of booster units 301; the gas inlet end of the booster unit 301 is connected to the high-concentration buffer tank 401, and the gas outlet end of the booster unit 301 is connected to the high-pressure gas storage module 5.

[0074] The booster unit 301 is electrically connected to the total control module 1.

[0075] Specifically, the booster module 3 is composed of one or more booster units 301 connected in parallel; the booster unit 301 can boost the 0.05-0.2 MPa oxygen output by the oxygen production module 2 to 10-30 MPa.

[0076] Preferably, the high-pressure gas storage module 5 includes a flow collection mechanism 501, a plurality of high-pressure gas storage units 503, and a high-pressure pressure reducer 505.

[0077] The flow collection mechanism 501 is connected to the gas outlet end of the booster module 3, and the high-pressure gas storage unit 503 is connected to the flow collection mechanism 501; specifically, the output end of the flow collection mechanism 501 has a plurality of output interfaces; the gas inlet of the high-pressure gas storage unit 503 is connected to the oxygen cylinder filling interface 506 on the flow collection mechanism 501; the high-pressure gas storage unit 503 can be expanded through the interface to simultaneously charge multiple high-pressure gas storage units;

[0078] The third pressure detector 504 is arranged between the high-pressure gas storage unit 503 and the confluence mechanism 501, and is electrically connected with the general control module 1; the third pressure detector 504 detects the oxygen pressure after flowing through the high-pressure pressure relief mechanism 502, and feeds back the pressure signal to the general control module 1. When the high-pressure gas storage unit 503 is filled, the third pressure detector 504 feeds back the detection signal to the general control module 1, and the general control module 1 can control to close the oxygen production module 2 and the pressure increasing module 3.

[0079] The high-pressure pressure relief mechanism 502 is arranged on the confluence mechanism 501, and is electrically connected with the general control module 1; specifically, the high-pressure pressure relief mechanism 502 for overflow pressure relief is arranged on the confluence mechanism 501, and the high-pressure pressure relief mechanism 502 is controlled by the general control module 1 to output signals; after the high-pressure gas storage module 5 is filled, the general control module 1 closes the oxygen production module 2 and the pressure increasing module 3, and then controls the high-pressure pressure relief mechanism 502 to release the high-pressure gas in the system pipeline.

[0080] The confluence mechanism 501 is connected with the high-pressure pressure reducer 505, and the high-pressure pressure reducer 505 is connected with the intelligent oxygen saving module 7; specifically, the confluence mechanism 501 is connected with the high-pressure pressure reducer 505 through the intelligent oxygen saving interface 507 arranged on the confluence mechanism 501; the pressure reduction output end is connected with the general oxygen supply pipeline; the high-pressure oxygen in the confluence mechanism is reduced to low-pressure oxygen, and then enters the general oxygen supply pipeline and is connected with the intelligent oxygen saving module 7, and the intelligent oxygen saving module 7 supplies the terminal oxygen absorption terminal.

[0081] The confluence mechanism 501 is connected with the rapid filling module 6.

[0082] Preferably, the confluence mechanism 501 is respectively provided with an oxygen cylinder filling interface 506, an intelligent oxygen saving interface 507 and a portable oxygen cylinder filling interface 508;

[0083] The gas inlet of the high-pressure gas storage unit 503 is connected with the confluence mechanism 501 through the oxygen cylinder filling interface 506;

[0084] The high-pressure pressure reducer 505 is connected with the confluence mechanism 501 through the intelligent oxygen saving interface 507;

[0085] The rapid filling module 6 is connected with the confluence mechanism 501 through the portable oxygen cylinder filling interface 508.

[0086] Specifically, the fast filling module 6 is connected with the portable oxygen cylinder filling interface 508 arranged on the confluence mechanism 501; the other end of the fast filling module 6 is connected with the portable oxygen cylinder 10; the portable oxygen cylinder can be filled by the pressurizing module or the high-pressure gas storage unit of the system.

[0087] Specifically, after the high-pressure fast filling valve 601 arranged on the fast filling module 6 is opened, the portable oxygen cylinder 10 can be filled by the pressurizing module 3 or the high-pressure gas storage unit 503 of the whole filling system; when the pressure of the portable oxygen cylinder 10 is equal to the pressure of the high-pressure gas storage unit 503 or the pressure reaches a preset value, the filling is completed, the high-pressure fast filling valve 601 is closed, and the portable oxygen cylinder 10 can be removed.

[0088] Preferably, as shown in Figure 1 , Figure 2 , the intelligent oxygen saving module 7 comprises a plurality of oxygen saving control units 701; the gas inlet end of the oxygen saving control unit 701 is connected with the total oxygen supply pipeline 12, and the gas outlet end is connected with the oxygen inhalation terminal to directly supply the oxygen inhalation terminal; specifically, a manual output valve 702 is arranged on the pipeline at the front end of the oxygen saving control unit 701 in the embodiment, so that the oxygen inhalation amount of the oxygen inhalation terminal can be better controlled.

[0089] As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , in one embodiment of the application, the oxygen generating unit 201 is directly connected with the pressurizing unit 301, and is used in combination with the high-pressure gas storage unit 503, the oxygen saving control unit 701 and the portable oxygen cylinder 10 to form a portable and independently used oxygen supply and filling system device; the oxygen output by the oxygen generating unit 201 can be directly provided to the oxygen inhalation terminal through the oxygen saving control unit 701 and the oxygen inhalation pipeline 13 or be used to fill the high-pressure gas storage unit 503 or the portable oxygen cylinder 10 after being pressurized by the pressurizing module 3.

[0090] Preferably, the control method of the intelligent oxygen saving module 7 for conveying oxygen to the oxygen inhalation terminal is as shown in Figure 7 .

[0091] S1: the flow rate V1 of oxygen in the total oxygen supply pipeline is obtained by the flow meter;

[0092] S2: when V1>Vbase, the oxygen inhalation capacity Vtidal of the oxygen inhalation terminal and the time Ttidal during which V1>Vbase are obtained; wherein Vbase is the baseline of expiratory flow rate, and is the initial value of the flow sensor when there is no gas flow in the oxygen channel between the intelligent oxygen saving module and the oxygen inhalation terminal after the intelligent oxygen saving module is powered on;

[0093] S3: If Ttidal >= Tset, and Vtidal < Vtrigger, the intelligent oxygen saving module is not started, and the first intelligent oxygen saving module opening capacity Vtrigger_1 is obtained; at this time, the opening threshold of the intelligent oxygen saving module is set to be larger, when the oxygen inhalation terminal needs to inhale oxygen, the valve of the intelligent oxygen saving module is not opened, and oxygen cannot be provided to the oxygen inhalation terminal, so the opening threshold of the intelligent oxygen saving module needs to be reduced.

[0094] Wherein, Tset is a set detection time threshold; Vtrigger is a current set oxygen inhalation terminal inhalation capacity threshold, which is a threshold set according to the individual of the oxygen inhalation terminal;

[0095] Otherwise, the intelligent oxygen saving module is started, and oxygen is delivered to the oxygen inhalation terminal;

[0096] The method for obtaining the first intelligent oxygen saving module opening capacity Vtrigger_1 is:

[0097] Vtrigger_1 = Vtidal * K1, K1 is the first oxygen supply coefficient, 60% <= K1 < 100%;

[0098] S4: The oxygen delivery time t of the oxygen inhalation terminal is obtained, and when t >= the delivery time threshold, the oxygen delivery to the oxygen inhalation terminal is stopped; the oxygen consumption can be saved;

[0099] S5: The inhalation time Tinhale of the current breath of the oxygen inhalation terminal is obtained, and if Tinhale < the average value Tavr of the inhalation time of the previous n breaths of the oxygen inhalation terminal, the second intelligent oxygen saving module opening capacity Vtrigger_2 is obtained; at this time, the breathing period of the oxygen inhalation terminal is short, and the oxygen supply exceeds the normal needs of the oxygen inhalation terminal, so the opening threshold of the intelligent oxygen saving module needs to be increased to reduce the oxygen amount delivered by the intelligent oxygen saving module to the oxygen inhalation terminal.

[0100] The method for obtaining the second intelligent oxygen saving module opening flow rate Vtrigger_2 is:

[0101] Vtrigger_2 = Vtidal * K2, K2 is the second oxygen supply coefficient, 100% <= K2 < 120%;

[0102] S6: S2-S5 are repeatedly executed until the oxygen inhalation terminal stops inhaling oxygen.

[0103] The modular oxygen supply and pressure boosting filling system can realize oxygen filling, storage and supply through the following six methods, as follows:

[0104] Method one: oxygen is supplied to the oxygen inhalation terminal through the total oxygen supply pipeline 12 of the modular oxygen supply and pressure boosting filling system, and the implementation steps are as follows:

[0105] 1, start: modular oxygen supply and pressurized filling system power on, start working, the total control module 1 controls the oxygen production module 2 to start oxygen production, and the total control module 1 controls the pressurization module 3 to be in a closed state;

[0106] 2, oxygen concentration monitoring by the oxygen concentration sensor 202: the oxygen concentration sensor 202 in the oxygen production module 2 detects the oxygen concentration output by the oxygen production unit 201, and uses the oxygen concentration as a signal for switching the switching valve 203; when the oxygen concentration is less than 90%, low-concentration oxygen enters the low-concentration buffer tank 403; when the oxygen concentration is greater than 90%, high-concentration oxygen enters the high-concentration buffer tank 401 through switching of the switching valve 203;

[0107] 3, because the pressurization pipeline 11 is in a closed state, the oxygen in the low-concentration buffer tank 403 and the high-concentration buffer tank 401 enters the intelligent oxygen saving module 7 in turn through the total oxygen supply pipeline 12 and reaches the manual output valve 702, and the oxygen terminal directly uses oxygen through the oxygen saving control unit after the manual output valve 702 is opened.

[0108] In this method, the fourth pressure detector 8 and the flow meter 9 are arranged on the total oxygen supply pipeline 12, and when the terminal completes oxygen inhalation or the manual output valve 702 is closed, the total control module 1 controls the oxygen production to be stopped by detecting the flow value on the total oxygen supply pipeline 12 and comparing the pressure value detected by the fourth pressure detector 8 with the pressure values of the second pressure detector 402 and the first pressure detector 404.

[0109] Method two: the steps of supplying oxygen to the oxygen terminal through the pressurization pipeline of the modular oxygen supply and pressurized filling system are as follows:

[0110] 1, start: modular oxygen supply and pressurized filling system power on, start working, the total control module 1 controls the oxygen production module 2 to start oxygen production, and the total control module 1 controls the pressurization module 3 to be in a closed state;

[0111] 2, oxygen concentration monitoring by the oxygen concentration sensor 202: the oxygen concentration sensor 202 in the oxygen production module 2 detects the oxygen concentration output by the oxygen production unit 201, and uses the oxygen concentration as a signal for switching the switching valve 203; when the oxygen concentration is less than 90%, low-concentration oxygen enters the low-concentration buffer tank 403; when the oxygen concentration is greater than 90%, high-concentration oxygen enters the high-concentration buffer tank 401 through switching of the switching valve 203;

[0112] 3, start the pressurization module 3, and the pressurization unit 301 pressurizes the oxygen in the high-concentration buffer tank 401 from the original gas pressure 0.05-0.2 MPa to 10-30 MPa; the high-pressure oxygen output from the pressurization unit 301 enters the converging mechanism 501;

[0113] 4, high pressure gas storage module 5 in the high pressure gas storage unit 503 intake and fast filling module 6 in the high pressure fast filling valve 601 closed state, high pressure oxygen from intelligent oxygen saving interface 507, after the high pressure pressure reducer 505 into the total oxygen supply pipeline 12, open the pipeline end hand valve 702, the oxygen terminal of the oxygen terminal through the oxygen saving control unit directly using oxygen;

[0114] 5, close the modular oxygen supply and pressure filling system: when the oxygen terminal completes the oxygen or hand valve 702 is closed, the total control module 1 through the detection of the total oxygen supply pipeline 12 on the flow value, and the fourth pressure detector 8 detects the pressure value and the pressure value of the second pressure detector 402 and the first pressure detector 404 compared with the feedback signal, the system can control the closing of the oxygen and pressure work; the convergence mechanism 501 has high pressure relief mechanism 502, the total control module 1 controls the high pressure relief mechanism 502 to relieve the high pressure in the system.

[0115] Method three: through the pressure pipeline of the modular oxygen supply and pressure filling system to the high pressure gas storage unit filling: the realization steps are as follows:

[0116] 1, start: the modular oxygen supply and pressure filling system is powered on, the total control module 1 controls the oxygen module 2 to start oxygen;

[0117] 2, oxygen concentration monitoring by oxygen concentration sensor 202: the oxygen concentration sensor 202 in the oxygen module 2 detects the oxygen concentration of the oxygen module 201 output, which is used as the signal for switching the switch valve 203; when the oxygen concentration is less than 90%, the low concentration oxygen enters the low concentration buffer tank 403, and then is transported to the total oxygen supply pipeline 12; when the oxygen concentration is greater than 90%, the high concentration oxygen enters the high concentration buffer tank 401 through the switching of the switch valve 203, and the system will start the pressure module 3;

[0118] 3, start the pressure module 3, the pressure unit 301 will increase the pressure of the oxygen in the high concentration buffer tank 401 from the original 0.05-0.2 MPa to 10-30 MPa, and the high pressure oxygen from the pressure unit 301 enters the convergence mechanism 501;

[0119] 4, oxygen storage filling: the high pressure fast filling valve 601 in the fast filling module 6 and the hand valve 702 in the intelligent oxygen saving module 7 are in the closed state, the high pressure oxygen flows out from the oxygen cylinder filling interface 506 in the convergence mechanism 501, and the high pressure oxygen is filled into the high pressure gas storage unit 503 through the pipeline;

[0120] 5. Turn off the modular oxygen supply and pressurized filling system: a third pressure detector 504 is provided on the high-pressure gas storage pipeline. The system monitors the pressure of the high-pressure gas storage unit 503. When the pressure in the high-pressure gas storage unit 503 reaches the preset value, the system controls to stop the oxygen production and pressurized filling work.

[0121] Method four: Fill the portable oxygen cylinder through the pressurized pipeline of the modular oxygen supply and pressurized filling system; the implementation steps are as follows:

[0122] 1. Turn on: the modular oxygen supply and pressurized filling system is powered on, and the general control module 1 controls the oxygen production module 2 to start oxygen production.

[0123] 2. Oxygen concentration monitoring by oxygen concentration sensor 202: the oxygen concentration sensor 202 in the oxygen production module 2 detects the oxygen concentration output by the oxygen production unit 201. This parameter serves as a signal for switching the conversion valve 203. When the oxygen concentration is less than 90%, low-concentration oxygen enters the low-concentration buffer tank 403 and is then delivered to the general oxygen supply pipeline 12. When the oxygen concentration is greater than 90%, high-concentration oxygen enters the high-concentration buffer tank 401 through the switching of the conversion valve 203, and the system will start the pressurization module 3.

[0124] 3. Start the pressurization module 3. The pressurization unit 301 pressurizes the oxygen in the high-concentration buffer tank 401 from the original gas pressure of 0.05-0.2 MPa to 10-30 MPa. The high-pressure oxygen output from the pressurization unit 301 enters the converging mechanism 501.

[0125] 4. Portable oxygen cylinder filling: the high-pressure gas storage unit 503 in the high-pressure gas storage module 5 is closed with the manual output valve 702 in the intelligent oxygen saving module 7. High-pressure oxygen flows out from the portable oxygen cylinder filling interface 508 in the converging mechanism 501. Open the high-pressure rapid filling valve 601 on the pipeline to fill oxygen into the cylinder.

[0126] 6. Turn off the modular oxygen supply and pressurized filling system: when the pressure of the portable oxygen cylinder 10 reaches the preset value, the system detects the pressure detector d504 on the high-pressure gas storage pipeline to control the stop of oxygen production and pressurized filling work, and closes the high-pressure rapid filling valve 601. The portable oxygen cylinder 10 can be removed.

[0127] Method five: Fill the portable oxygen cylinder with oxygen steel cylinders through the modular oxygen supply and pressurized filling system; the implementation steps are as follows:

[0128] 1. High-pressure gas storage unit filling: as in method three, fill the high-pressure gas storage unit 503 with sufficient high-pressure oxygen.

[0129] 2. Portable oxygen cylinder filling: With the manual output valve 702 in the intelligent oxygen-saving module 7 closed, the portable oxygen cylinder filling interface 508 of the manifold mechanism 501 and the pipeline connected to the portable oxygen cylinder 10, the high-pressure fast filling valve 601 is opened to fill the cylinder with oxygen.

[0130] 3. System shutdown: When the pressure of the portable oxygen cylinder 10 is equal to or reaches the preset value of the high-pressure gas storage unit 503, the filling and filling are completed. The system controls the oxygen production and pressurization filling to stop by detecting the third pressure detector 504 on the high-pressure gas storage pipeline, closes the high-pressure quick filling valve 601, and removes the portable oxygen cylinder 10.

[0131] Method Six: Through a modular oxygen supply and pressurized filling system, oxygen can be stored and supplied simultaneously in multiple ways; the steps are as follows: Methods One, Two, Three, Four and Five can work simultaneously to form a multi-mode oxygen storage and supply operation.

[0132] This invention can also be used with the oxygen generation unit and the pressurization unit directly connected, and oxygen filling, storage and supply can be achieved through the following four methods, as detailed below:

[0133] Method 1: Filling portable oxygen cylinders by directly connecting the oxygen generation module and the pressurization module: The steps are as follows:

[0134] 1. The oxygen generating unit 201 is connected to the pressurizing unit 301. The oxygen output terminal of the oxygen generating unit 201 is connected to the air inlet terminal of the pressurizing unit 301. The oxygen generating unit 201 and the pressurizing unit 301 are connected to the power supply and the machine is turned on.

[0135] 2. Portable oxygen cylinder filling: Connect the outlet of the pressurization unit 301 to the portable oxygen cylinder 10, fill the cylinder with oxygen, and turn off the pressurization unit 301 and remove the portable oxygen cylinder 10 when the pressure inside the cylinder reaches the preset value.

[0136] 3. Direct oxygen supply: At the same time, the output end of the oxygen generating unit 201 can be connected to the oxygen saving control unit 701 and the oxygen inhalation tube 13 to directly supply oxygen to the oxygen inhalation terminal.

[0137] Method 2: Directly connect the oxygen generation module and the pressurization module to fill the high-pressure gas storage unit with oxygen; the steps are as follows:

[0138] 1. The oxygen generating unit 201 is connected to the pressurizing unit 301. The oxygen output terminal of the oxygen generating unit 201 is connected to the air inlet terminal of the pressurizing unit 301. The oxygen generating unit 201 and the pressurizing unit 301 are connected to the power supply and the machine is turned on.

[0139] 2. Oxygen cylinder storage: connect the outlet of the booster unit 301 with the inlet of the high-pressure gas storage unit 503, open the high-pressure gas storage unit 503 bottle valve, fill the oxygen into the high-pressure gas storage unit 503, when the internal pressure reaches the preset value, close the booster unit 301, close the high-pressure gas storage unit 503 bottle valve, and remove the filling pipeline.

[0140] 3. Direct oxygen supply: the output end of the oxygen generation unit 201 can be connected with the oxygen saving control unit 701 and the oxygen inhalation pipe 13 to directly supply oxygen to the oxygen inhalation terminal.

[0141] Method three: directly connect the oxygen generation module and the booster module for use, and the high-pressure gas storage unit fills the portable oxygen cylinder; the implementation steps are as follows:

[0142] 1. Connect the oxygen generation unit 201 with the booster unit 301, connect the oxygen output end of the oxygen generation unit 201 with the inlet of the booster unit 301, connect the power supply of the oxygen generation unit 201 and the booster unit 301, and start working; 2. Oxygen cylinder storage: connect the outlet of the booster unit 301 with the inlet of the high-pressure gas storage unit 503, open the high-pressure gas storage unit 503 bottle valve, fill the oxygen into the high-pressure gas storage unit 503, when the internal pressure reaches the preset value, close the booster unit 301, close the high-pressure gas storage unit 503 bottle valve

[0143] 3. Portable oxygen cylinder filling: connect the portable oxygen cylinder 10 with the outlet of the high-pressure gas storage unit 503, open the high-pressure gas storage unit 503 bottle valve to start filling the portable oxygen cylinder 10, when the pressure of the portable oxygen cylinder 10 and the high-pressure gas storage unit 503 is equal or reaches the preset value, the filling is completed, the cylinder valve is closed, and the portable oxygen cylinder 10 is removed.

[0144] 4. Direct oxygen supply: the output end of the oxygen generation unit 201 can be connected with the oxygen saving control unit 701 and the oxygen inhalation pipe 13 to directly supply oxygen to the oxygen inhalation terminal.

[0145] Method four: directly connect the oxygen generation module and the booster module for use, and the high-pressure gas storage unit directly supplies oxygen; the implementation steps are as follows:

[0146] 1. Connect the oxygen generation unit 201 with the booster unit 301, connect the oxygen output end of the oxygen generation unit 201 with the inlet of the booster unit 301, connect the power supply of the oxygen generation unit 201 and the booster unit 301, and start working;

[0147] 2. Oxygen cylinder storage: connect the outlet of the booster unit 301 with the inlet of the high-pressure gas storage unit 503, open the high-pressure gas storage unit 503 bottle valve, fill the oxygen into the high-pressure gas storage unit 503, when the internal pressure reaches the preset value, close the booster unit 301, close the high-pressure gas storage unit 503 bottle valve;

[0148] 3. Direct oxygen supply: the outlet of the high-pressure gas storage unit 503 is connected to the oxygen control unit 701, which can supply oxygen through an expansion interface to multiple oxygen control units 701 simultaneously. The outlet of the oxygen control unit 701 is connected to the oxygen inhalation tube 13 to directly supply oxygen to the oxygen inhalation terminal.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. The modification or replacement does not change the essence of the corresponding technical solution from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A modular oxygen and pressure charging filling system, characterized in that, The application relates to an oxygen supply system. The system comprises a total control module (1), an oxygen production module (2), a pressure boosting module (3), a high-pressure gas storage module (5), a fast filling module (6) and an intelligent oxygen saving module (7). The oxygen production module (2) is connected with the pressure boosting module (3) at an outlet end, so that the oxygen output by the oxygen production module is boosted. The outlet end of the pressure boosting module (3) is connected with the high-pressure gas storage module (5), so that the boosted oxygen is stored. The outlet end of the high-pressure gas storage module (5) is connected with the fast filling module (6), and the fast filling module (6) is connected with a portable oxygen cylinder (10), so that the fast filling module (6) is used for filling oxygen into the portable oxygen cylinder (10). The intelligent oxygen saving module (7) is connected with the high-pressure gas storage module (5) and the oxygen production module (2) respectively, and the intelligent oxygen saving module (7) is connected with an oxygen inhalation terminal, so that the intelligent oxygen saving module (7) is used for delivering oxygen to the oxygen inhalation terminal. The oxygen production module (2), the pressure boosting module (3) and the high-pressure gas storage module (5) are connected with the total control module (1), so that the total control module (1) is used for control. The system further comprises a low-pressure gas storage module (4), the outlet end of the oxygen production module (2) is connected with the inlet end of the low-pressure gas storage module (4), the outlet end of the low-pressure gas storage module (4) is connected with the pressure boosting module (3) and the intelligent oxygen saving module (7) respectively, and the low-pressure gas storage module (4) is connected with the total control module (1). The low-pressure gas storage module (4) comprises a high-concentration buffer tank (401) and a low-concentration buffer tank (403), a first pressure detector (404) and a second pressure detector (402). The high-concentration buffer tank (401) and the low-concentration buffer tank (403) are connected with the oxygen production module (2), the high-concentration buffer tank (401) is connected with the pressure boosting module (3) through a boosting pipeline (11), the outlet end of the low-concentration buffer tank (403) is provided with a low-pressure pipeline (121), the low-pressure pipeline (121) and the boosting pipeline (11) converge at a total oxygen supply pipeline (12), and the total oxygen supply pipeline (12) is connected with the intelligent oxygen saving module (7). The low-pressure pipeline (121) is provided with the first pressure detector (404), the boosting pipeline (11) is provided with the second pressure detector (402), and the first pressure detector (404) and the second pressure detector (402) are electrically connected with the total control module (1).

2. A modular oxygen and pressure charging filling system as claimed in claim 1, wherein, The oxygen production module (2) comprises a plurality of groups of oxygen production unit modules, and each group of oxygen production unit modules comprises an oxygen production unit (201), an oxygen concentration sensor (202) and a switching valve (203). The oxygen production unit (201) is connected with the switching valve (203), the switching valve (203) is connected with the low-pressure gas storage module (4), the oxygen concentration sensor (202) is arranged between the oxygen production unit (201) and the switching valve (203), and the oxygen production unit (201) and the oxygen concentration sensor (202) are connected with the total control module (1). ​ 3. A modular oxygen and pressure boosting filling system as claimed in claim 1, wherein, The booster module (3) comprises a plurality of booster units (301); the air inlet end of the booster unit (301) is connected with the high-concentration buffer tank (401), and the air outlet end of the booster unit (301) is connected with the high-pressure gas storage module (5). The booster unit (301) is electrically connected with the total control module (1).

4. The modular oxygen supply and booster filling system according to claim 1, wherein A fourth pressure detector (8) and a flow meter (9) are arranged on the total oxygen supply pipeline (12); the fourth pressure detector (8) and the flow meter (9) are electrically connected with the total control module (1).

5. The modular oxygen supply and booster filling system according to claim 1, wherein The high-pressure gas storage module (5) comprises a current collection mechanism (501), a plurality of high-pressure gas storage units (503), and a high-pressure pressure reducer (505); The current collection mechanism (501) is connected with the air outlet end of the booster module (3), and the high-pressure gas storage unit (503) is connected with the current collection mechanism (501); A third pressure detector (504) is arranged between the high-pressure gas storage unit (503) and the current collection mechanism (501), and the third pressure detector (504) is electrically connected with the total control module (1); A high-pressure pressure relief mechanism (502) is arranged on the current collection mechanism (501), and the high-pressure pressure relief mechanism (502) is electrically connected with the total control module (1); The current collection mechanism (501) is connected with the high-pressure pressure reducer (505), and the high-pressure pressure reducer (505) is connected with the intelligent oxygen saving module (7); The current collection mechanism (501) is connected with the rapid filling module (6).

6. A modular oxygen and pressure boosting filling system as claimed in claim 5, wherein, An oxygen cylinder filling interface (506), an intelligent oxygen saving interface (507), and a portable oxygen cylinder filling interface (508) are respectively arranged on the current collection mechanism (501); The air inlet of the high-pressure gas storage unit (503) is connected with the current collection mechanism (501) through the oxygen cylinder filling interface (506); The high-pressure pressure reducer (505) is connected with the current collection mechanism (501) through the intelligent oxygen saving interface (507); The rapid filling module (6) is connected with the current collection mechanism (501) through the portable oxygen cylinder filling interface 508.

7. A modular oxygen and pressure boosting filling system as claimed in claim 4, wherein, The intelligent oxygen saving module (7) comprises a plurality of oxygen saving control units (701); the air inlet end of the oxygen saving control unit (701) is connected with the total oxygen supply pipeline (12), and the air outlet end is connected with an oxygen inhalation terminal for direct use of the oxygen inhalation terminal.

8. A modular oxygen and pressure boosting filling system as claimed in claim 4, wherein, The control method for the intelligent oxygen saving module (7) to deliver oxygen to the oxygen inhalation terminal is as follows: S1: Obtain the oxygen flow rate V1 in the total oxygen supply pipeline through the flow meter; S2: when V1>Vbase, acquiring a tidal inspiration volume Vtidal and a time Ttidal during which V1>Vbase; wherein Vbase is a baseline of expiratory phase flow rate, ; S3: If Ttidal >= Tset and Vtidal < Vtrigger, the intelligent oxygen saving module is not started, and the first opening capacity Vtrigger_1 of the intelligent oxygen saving module is obtained; wherein, Tset is a set detection time threshold; Vtrigger is a current set inhalation capacity threshold of the oxygen inhalation terminal; Otherwise, the intelligent oxygen saving module is started, and oxygen is delivered to the oxygen inhalation terminal; The method for obtaining the first opening capacity Vtrigger_1 of the intelligent oxygen saving module is: Vtrigger_1 = Vtidal K1, K1 is the first oxygen supply coefficient, 60%≤ K1 < 100%; S4: Obtain the oxygen delivery time t of the oxygen inhalation terminal, and stop delivering oxygen to the oxygen inhalation terminal when t >= the delivery time threshold; S5: Obtain the inhalation time Tinhale of the current breath of the oxygen inhalation terminal, and if Tinhale < the average value Tavr of the inhalation time of the previous n breaths of the oxygen inhalation terminal, obtain the second opening flow rate Vtrigger_2 of the intelligent oxygen saving module; The method for obtaining the second opening flow rate Vtrigger_2 of the intelligent oxygen saving module is: Vtrigger_2= Vtidal K2, K2 is a second oxygen supply coefficient, 100%≤ K < 120%; S6: Repeat S2-S5 until the oxygen inhalation terminal stops inhaling oxygen.

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