Configuration device and configuration method for breathing gas

Abstract

The invention provides a configuration device and a configuration method for breathing gas, and relates to the technical field of gas mixing. The configuration device comprises two groups of gas mixing bottles, one end of the gas inlet assembly is communicated with the gas mixing bottle; the first stop valve is mounted on the air inlet assembly; one end of the oxygen inlet assembly is communicated with the air inlet assembly; the other end of the nitrogen inlet assembly is communicated with the gas inlet assembly; the detection assembly is communicated with the other ends of the two groups of gas mixing bottles; the temperature sensor is mounted on the gas mixing bottle; the controller is electrically connected with the oxygen inlet assembly, the nitrogen inlet assembly and the temperature sensor; the air inlet assembly comprises an air inlet header pipe, a first stop valve and a second stop valve, the first three-way pipe is arranged at the other end of the air inlet main pipe; the branch pipe is communicated with the first three-way pipe; the gas inlet pipe is communicated with the branch pipe and the gas mixing bottle; and the gas cylinder valve is arranged on the gas inlet pipe. The invention further discloses a configuration method of the configuration device for the breathing gas. The automation degree of gas distribution is higher, and the influence of human factors is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gas mixing, and in particular to a configuration device and method for breathing gas. Background Art

[0002] Due to the particularity of the missions performed by astronauts, in order to ensure that the astronauts have good breathing quality during the missions, the air that astronauts breathe needs to be cleaner than the air on Earth, non-toxic, free of harmful components, with a slightly higher oxygen content, and the gas component indicators and hygiene indicators all meet the astronaut breathing oxygen standards. This kind of gas needs to be configured and synthesized with special equipment, and injected into the manned spacecraft after all indicators are tested and qualified. The preparation process of this kind of breathing air is to first fill the special gas cylinder group with high-purity oxygen, and then fill it with high-purity nitrogen. After a period of time, after the gases are evenly mixed in the gas cylinders, the proportion and content of each component in the mixed gas are tested at the required pressure, and hygiene tests are carried out. After all indicators are qualified, it is injected into the manned spacecraft.

[0003] At present, the traditional method of preparing air is mainly through manual operation based on experience. The operator uses a booster pump to fill high-purity oxygen and high-purity nitrogen into the air mixing cylinder group respectively, and then tests it when the required pressure is reached; when testing the proportion of mixed air components in the initial stage, there is a problem that the oxygen proportion is higher than the nitrogen proportion, and the operator needs to adjust the gas composition repeatedly based on experience. If the oxygen proportion is high, fill it with an appropriate amount of nitrogen, and test it again after it is evenly mixed; if the nitrogen proportion is high, fill it with an appropriate amount of oxygen, and test it again after it is evenly mixed, and repeat the operation until the oxygen content of the gas index meets the standard and the test is qualified.

[0004] The traditional method of preparing air requires multiple inflation and mixing based on experience. The operating procedures are cumbersome, the mixing accuracy is not high enough, the mixing and gas production process is not fast and convenient enough, and there are human uncertainties. Once the personnel change, it will directly affect the quality of the mixing. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a configuration device and a configuration method for breathing gas. The configuration device of the present invention is used to achieve a higher degree of automation in gas distribution and reduce the influence of human factors.

[0006] The technical solution adopted by the present invention is:

[0007] A breathing gas configuration device, comprising:

[0008] Two sets of gas mixing bottles;

[0009] An air intake assembly, one end of which is connected to the gas mixing bottle;

[0010] A first stop valve, mounted on the air intake assembly;

[0011] An oxygen inlet assembly, one end of which has an air outlet connected to the air inlet assembly;

[0012] A nitrogen inlet assembly, one end of which has a gas outlet connected to the gas inlet assembly;

[0013] A detection assembly is connected to the other ends of the two sets of gas mixing bottles;

[0014] A temperature sensor is installed on the gas mixing bottle;

[0015] A controller, electrically connected to the oxygen inlet assembly, the nitrogen inlet assembly and the temperature sensor;

[0016] Wherein, the air intake assembly comprises:

[0017] An air intake manifold, one end of which is connected to the first stop valve;

[0018] A first three-way pipe, arranged at the other end of the intake manifold;

[0019] Branch pipes, the remaining two connecting ports of the first three-way pipe are both provided with the branch pipes, wherein the pipe diameters and lengths of the two branch pipes are the same;

[0020] an air inlet pipe, one end of which is connected to the other end of the branch pipe;

[0021] A gas cylinder valve is arranged at the gas inlet end of the gas mixing bottle, and the other end of the gas cylinder valve is communicated with the gas inlet pipe.

[0022] Optionally, each group of the mixed gas bottles includes 2 gas cylinders; each of the gas cylinders is connected to an air inlet pipe, and the other ends of the two air inlet pipes are connected to the branch pipe through a second three-way pipe.

[0023] Optionally, the oxygen inlet assembly comprises:

[0024] An oxygen inlet tube, one end of which is connected to an external oxygen supply component;

[0025] an oxygen booster pump connected to the other end of the oxygen inlet pipe;

[0026] A second stop valve is installed on the oxygen inlet pipe;

[0027] A first filter, mounted on the oxygen inlet pipe;

[0028] A driving air inlet pipe connected to the oxygen booster pump;

[0029] a first solenoid valve, mounted on the driving air inlet pipe, the first solenoid valve being electrically connected to the controller;

[0030] An air delivery pipeline, one end of which is connected to the oxygen booster pump, and the other end of which is connected to the air intake assembly;

[0031] A third stop valve is installed on the air supply pipeline;

[0032] A vent valve connected to the gas supply pipeline through a third three-way pipe;

[0033] The ball valve is connected to the driving air inlet pipe of the oxygen booster pump through a pipeline.

[0034] Optionally, the oxygen inlet assembly has the same structure as the nitrogen inlet assembly.

[0035] Optionally, the breathing gas configuration device further comprises:

[0036] A pressure relief pipe, one end of which is connected to the air intake assembly;

[0037] A root valve installed on the pressure relief pipe;

[0038] A first safety valve installed at the other end of the pressure relief pipe;

[0039] A pressure sensor, installed on the pressure relief pipe and located between the root valve and the first safety valve;

[0040] Wherein, the root valve, the first safety valve and the pressure sensor are electrically connected to the controller.

[0041] Optionally, the detection component includes:

[0042] A detection pipeline, one end of which is connected to the gas mixing bottle;

[0043] A spare valve is installed at one end of the detection pipeline close to the gas mixing bottle;

[0044] a fourth stop valve, installed on the detection pipeline and located on a side of the standby valve away from the gas mixing bottle;

[0045] a pressure reducing valve, installed on the detection pipeline and located on a side of the fourth stop valve away from the standby valve;

[0046] a fifth stop valve, installed on the detection pipeline and located on a side of the pressure reducing valve away from the fourth stop valve;

[0047] an oxygen analyzer, connected to the other end of the detection pipeline;

[0048] A connecting pipe, one end of which is connected to the detection pipeline and is located between the fifth stop valve and the pressure reducing valve;

[0049] An on-site pressure gauge installed on the connecting pipe;

[0050] The second safety valve is installed on the connecting pipe through a fourth three-way valve.

[0051] By setting the required oxygen concentration range and required air mixed pressure after mixing oxygen and nitrogen, and measuring and analyzing the gas state of the gas cylinder to adjust the working state of the booster pump, the oxygen concentration in the mixed air can be controlled. The specific configuration method of configuring the mixed air includes the following steps:

[0052] S01. According to the volume V of the gas cylinder and the final mixed gas pressure P, the state of the mixed gas is assumed to be P0V / T0;

[0053] S02, calculate the initial oxygen value filled in the standard state according to the oxygen concentration in the air after mixing, which is P1V / T1;

[0054] S03, control the configuration device to switch to the oxygenation mode for oxygenation, the oxygen value during the oxygenation process is P2V / T2, and the oxygenation is automatically stopped when P2V / T2= P1V / T1 is satisfied;

[0055] S04. Switch to nitrogen charging mode for nitrogen charging. During the charging process, the value of the mixed gas is P3V / T3. When the condition of P3V / T3=P0V / T0 is met, nitrogen charging is automatically stopped.

[0056] Optionally, the configuration method further comprises the following steps:

[0057] S05. After the mixed gas is left to stand, sampling and testing are performed;

[0058] S06. If the test is qualified, the configuration device is shut down; if the test is unqualified, the gas is supplemented and inflated according to the detected oxygen content and nitrogen content;

[0059] S07. After refilling and inflation, repeat steps S05 and S06.

[0060] Optionally, when oxygenation and nitrogenation are being performed, the temperature and pressure during the oxygenation and nitrogenation are detected in real time by a detection component.

[0061] Compared with the prior art, the present invention has the following beneficial effects:

[0062] 1. Compared with the traditional manual gas distribution, the gas distribution device of the present invention has a higher degree of automation and is not affected by human factors such as operating experience, operating skills, proficiency, etc. of the operator.

[0063] 2. The equipment is simple to operate and maintain. The gas distribution is automatically carried out according to the program. The gas distribution speed is fast and the ratio accuracy is high, which effectively improves the gas mixing efficiency.

[0064] 3. During the inflation process, the ambient temperature and the pressure in the bottle are monitored in real time, and automatic and rapid gas distribution can be achieved in different seasons, different places and different gas source conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0066] Figure 1 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 1 .

[0067] Figure 2 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 2 .

[0068] Figure 3 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 3 .

[0069] Figure 4 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 4 .

[0070] Figure 5 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 5 .

[0071] Figure 6 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 6 .

[0072] Figure 7 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 7 .

[0073] Figure 8 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 8 .

[0074] Fig. 9 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 9 .

[0075] Fig.10 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 10 .

[0076] Fig.11Schematic diagram of the control panel display of the configuration device for breathing gases Figure 10 one.

[0077] Fig.12 Schematic diagram of the control panel display of the configuration device for breathing gases Figure 10 two.

[0078] Fig.13 This is a schematic diagram of the structure of the configuration device for breathing gas.

[0079] Fig.14 A schematic diagram of the structure of a gas mixing bottle and an air intake assembly of a configuration device for breathing gas.

[0080] Reference numerals:

[0081] 1. Gas mixing bottle; 11. Gas cylinder; 12. Second three-way pipe;

[0082] 2. Intake assembly; 21. Intake manifold; 22. First three-way pipe; 23. Branch pipe; 24. Intake pipe; 25. Cylinder valve;

[0083] 3. The first stop valve;

[0084] 4. Oxygen inlet assembly; 41. Oxygen inlet pipe; 42. Oxygen booster pump; 43. Second stop valve; 44. First filter; 45. Driving air inlet pipe; 46. First solenoid valve; 47. Air delivery pipeline; 48. Third stop valve; 49. Vent valve; 410. Third three-way pipe; 411. Ball valve;

[0085] 5. Nitrogen inlet assembly;

[0086] 6. Detection assembly; 61. Detection pipeline; 62. Spare valve; 63. Fourth stop valve; 64. Pressure reducing valve; 65. Fifth stop valve; 66. Oxygen analyzer; 67. Connecting pipe; 68. Local pressure gauge; 69. First safety valve; 610. Fourth three-way valve;

[0087] 7. Temperature sensor;

[0088] 8. Controller;

[0089] 9. Pressure relief pipe;

[0090] 100, root valve;

[0091] 110. Second safety valve;

[0092] 120. Pressure sensor. DETAILED DESCRIPTION

[0093] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0094] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0095] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0096] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0097] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0098] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0099] like Fig.13 and Fig.14 As shown, an embodiment of the present invention provides a configuration device for breathing gas, including: two groups of mixed gas bottles 1, an air intake assembly, a first stop valve 3, an oxygen intake assembly 4, a nitrogen intake assembly 5, a detection assembly 6, a temperature sensor 7 and a controller 8. The air intake assembly 2 is connected to the mixed gas bottle 1. The first stop valve 3 is installed on the air intake assembly 2. One end of the air outlet of the oxygen intake assembly 4 is connected to the air intake assembly 2. The air outlet of the nitrogen intake assembly 5 is connected to the air intake assembly 2. The detection assembly 6 is connected to the other end of the two groups of mixed gas bottles 1. The temperature sensor 7 is installed on the mixed gas bottle 1, and the controller 8 is electrically connected to the oxygen intake assembly 4, the nitrogen intake assembly 5 and the temperature sensor 7.

[0100] The intake amount of oxygen and nitrogen is set by the controller 8. When mixing, the controller 8 controls the oxygen inlet component 4 to provide oxygen to the mixing bottle 1. During the process of providing oxygen, the temperature sensor 7 detects the temperature in the area where the mixing bottle 1 is located in real time, so that the controller 8 can correct the pressure parameters after real-time oxygenation according to the temperature, thereby controlling the intake amount of oxygen. When the oxygenation is completed, the controller 8 controls the oxygen inlet component 4 to stop working and controls the nitrogen inlet component 5 to work. During the operation of the nitrogen inlet component 5, the temperature sensor 7 detects the temperature in the area where the mixing bottle 1 is located in real time, so that the controller 8 can correct the pressure parameters after real-time nitrogenation according to the temperature, thereby controlling the intake amount of nitrogen. After nitrogen is filled into the mixing bottle 1, it drives the flow of oxygen under the action of pressure, so that the mixing time of oxygen and nitrogen is shorter. After the nitrogen filling is completed, it needs to be left to stand for a period of time to facilitate the mixing of oxygen and nitrogen more fully. Then the fully mixed gas is discharged into the detection component 6 for detection, and it can be stored for standby if the detection meets the standard. If there is a deviation, the oxygen or nitrogen is adjusted according to the result of the detection of the detection component 6, and then a secondary detection is performed until the gas meets the standard.

[0101] More specifically, if Fig.13 and Fig.14 As shown, the air intake assembly 2 includes: an air intake manifold 21, a first three-way pipe 22, a branch pipe 23, an air intake pipe 24 and a gas cylinder valve 25. One end of the air intake manifold 21 is connected to the first stop valve 3. The first three-way pipe 22 is arranged at the other end of the air intake manifold 21. The remaining two connection ports of the first three-way pipe 22 are both provided with branch pipes 23, wherein the pipe diameters and lengths of the two branch pipes 23 are the same. One end of the air intake pipe 24 is connected to the other end of the branch pipe 23. The gas cylinder valve 25 is arranged at the air intake end of the gas mixing bottle 1, and the other end of the gas cylinder valve 25 is connected to the air intake pipe 24.

[0102] When in use, in order to ensure that the flow rate and pressure of high-purity oxygen or high-purity nitrogen in each gas mixing bottle 1 are the same and avoid flow deviation during the inflation process, the diameter and length of the branch pipe 23 are the same to ensure that the state of the mixed gas entering each group of gas mixing bottles 1 is the same.

[0103] In one embodiment, if Fig.13 and Fig.14 As shown, each group of the mixed gas bottles 1 includes two gas cylinders 11 ; each of the gas cylinders 11 is connected to an air inlet pipe 24 , and the other ends of the two air inlet pipes 24 are connected to the branch pipe 23 through the second three-way pipe 12 .

[0104] In order to reduce the number of gas distribution times, each group of mixed gas bottles 1 includes two gas bottles 11. Each gas bottle 11 is connected to an air inlet pipe 24, and the other end of the air inlet pipe 24 is connected to the branch pipe 23 through a three-way pipe. The diameter and length of the air inlet pipe 24 connected to the air pipe are the same, which is also to ensure that the flow rate and pressure of oxygen and nitrogen entering the mixed gas bottle 1 are the same, and further avoid the occurrence of biased flow during the inflation process.

[0105] In one embodiment, if Fig.13 As shown, the oxygen inlet assembly 4 includes: an oxygen inlet pipe 41, an oxygen booster pump 42, a second stop valve 43, a first filter 44, a driving air inlet pipe 45, a first solenoid valve 46, an air supply pipe 47, a third stop valve 48, a vent valve 49 and a ball valve 411. One end of the oxygen inlet pipe 41 is connected to the external oxygen supply assembly, and the other end of the oxygen inlet pipe 41 is connected to the oxygen booster pump 42. The second stop valve 43 is installed on the oxygen inlet pipe 41. The first filter 44 is installed on the oxygen inlet pipe 41. The driving air inlet pipe 45 is connected to the oxygen booster pump 42. The first solenoid valve 46 is installed on the driving air inlet pipe 45, and the first solenoid valve 46 is electrically connected to the controller 8. One end of the air supply pipe 47 is connected to the oxygen booster pump 42, and the other end is connected to the air inlet assembly 2. The third stop valve 48 is installed on the air supply pipe 47. The vent valve 49 is connected to the air supply pipe 47 through the third three-way pipe 410. The ball valve 411 is connected to the oxygen booster pump 42 through a pipeline.

[0106] When oxygen is being charged, the controller 8 controls the first electromagnetic valve 46 to work, so that the oxygen booster pump 42 has a gas source to perform boosting work. Oxygen enters the oxygen booster pump 42 through the oxygen inlet pipe 41, and the oxygen after passing through the oxygen booster pump 42 enters the gas mixing bottle 1 under a certain pressure. Before entering the oxygen booster pump 42, the oxygen is first filtered through the first filter 44 to prevent impurities from entering the gas mixing bottle 1 and affecting the quality of the mixed gas.

[0107] In one embodiment, if Fig.13 As shown, the oxygen inlet assembly 4 has the same structure as the nitrogen inlet assembly 5 .

[0108] In one embodiment, if Fig.13 As shown, the breathing gas configuration device further includes: a pressure relief pipe 9, a root valve 100, a first safety valve 69 and a pressure sensor 120. One end of the pressure relief pipe 9 is connected to the air intake assembly 2. The root valve 100 is installed on the pressure relief pipe 9. The first safety valve 69 is installed on the other end of the pressure relief pipe 9. The pressure valve is installed on the pressure relief pipe 9 and is located between the root valve 100 and the first safety valve 69. Among them, the root valve 100, the first safety valve 69 and the pressure sensor 120 are electrically connected to the controller 8.

[0109] When in use, the pressure sensor 120 detects the pressure of the gas mixing bottle 1 in real time, and feeds back the pressure data to the controller 8 in real time. The controller 8 controls the working state of the booster pump 42 according to the pressure and temperature.

[0110] When the first safety valve 69 is calibrated offline, the root valve 100 is in a closed state.

[0111] In one embodiment, if Fig.13 As shown, the detection assembly 6 includes: a detection pipeline 61, a spare valve 62, a fourth stop valve 63, a pressure reducing valve 64, a fifth stop valve 65, an oxygen analyzer 66, a connecting pipe 67, an on-site pressure gauge 68 and a second safety valve 110. One end of the detection pipeline 61 is connected to the gas mixing bottle 1. The spare valve 62 is installed at one end of the detection pipeline 61 close to the gas mixing bottle 1. The fourth stop valve 63 is installed on the detection pipeline 61 and is located on the side of the spare valve 62 away from the gas mixing bottle 1. The pressure reducing valve 64 is installed on the detection pipeline 61 and is located on the side of the fourth stop valve 63 away from the spare valve 62. The fifth stop valve 65 is installed on the detection pipeline 61 and is located on the side of the pressure reducing valve 64 away from the fourth stop valve 63. The oxygen analyzer 66 is connected to the other end of the detection pipeline 61. One end of the connecting pipe 67 is connected to the detection pipeline 61 and is located between the fifth stop valve 65 and the pressure reducing valve 64. The on-site pressure gauge 68 is installed on the connecting pipe 67. The second safety valve 110 is installed on the connecting pipe 67 through the fourth three-way valve 610 .

[0112] When the mixed gas needs to be tested during use, the standby valve 62 and the fourth stop valve 63 are opened, and the gas to be tested is depressurized by the pressure reducing valve 64, and then enters the oxygen analyzer 66 through the fifth stop valve 65 for testing. During the testing and analysis process, the local pressure gauge 68 detects the pressure in real time. When the local pressure gauge 68 detects that the pressure entering the test pipe 61 is greater than the preset value, the second safety valve 110 is opened to ensure the safe operation of the equipment.

[0113] By setting the required oxygen concentration range and required air mixed pressure after the oxygen and nitrogen are mixed, and measuring and analyzing the gas state of the gas cylinder 11 to adjust the working state of the booster pump, the oxygen concentration in the mixed air is finally controlled. The specific configuration method of configuring the mixed air includes the following steps:

[0114] S01. According to the volume V of the gas cylinder 11 and the final mixed gas pressure P, the state of the mixed gas is assumed to be P0V / T0;

[0115] S02, calculate the initial oxygen value filled in the standard state according to the oxygen concentration in the air after mixing, which is P1V / T1;

[0116] S03, control the configuration device to switch to the oxygenation mode for oxygenation, the oxygen value during the oxygenation process is P2V / T2, and the oxygenation is automatically stopped when P2V / T2= P1V / T1 is satisfied;

[0117] S04. Switch to nitrogen charging mode for nitrogen charging. During the charging process, the value of the mixed gas is P3V / T3. When the condition of P3V / T3=P0V / T0 is met, nitrogen charging is automatically stopped.

[0118] In one embodiment, the configuration method further comprises the following steps:

[0119] S05. After the mixed gas is left to stand, sampling and testing are performed;

[0120] S06. If the test is qualified, the configuration device is shut down; if the test is unqualified, the gas is supplemented and inflated according to the detected oxygen content and nitrogen content;

[0121] S07. After refilling and inflation, repeat steps S05 and S06.

[0122] In one embodiment, when oxygenation and nitrogenation are being performed, the temperature and pressure during the oxygenation and nitrogenation are detected in real time by the detection component 6 .

[0123] Specific gas distribution embodiment:

[0124] Prepare 24.5% air at 33 MPa, and the gas pressure in cylinder 11 is 0 MPa.

[0125] like Figure 1 , enter 24.5 in the Prepared Air Ratio % box, and enter 33 in the Prepared Air Pressure MPa box. The pressure displayed in the Budgeted Oxygen Filling box is 8.085MPa, and the pressure displayed in the Budgeted Nitrogen Filling Pressure MPa box is 33MPa.

[0126] The gas temperature of 20°C is the online detection temperature of the system;

[0127] The initial pressure of gas cylinder 11 is 0 MPa, which is the online detection pressure of the system.

[0128] Press the oxygen button to enter Figure 2 Working screen, the oxygen pump starts to work to inflate the gas cylinder 11.

[0129] After working for a period of time, Figure 3 , the budget pressure changes with the pressure and temperature of the gas in the gas cylinder 11. When the pressure of the gas cylinder 11 is equal to the budget pressure, Figure 4 , the oxygen filling pump automatically stops at this time, and the oxygen filling work is completed. Press the return button to enter the nitrogen filling work screen. Figure 5 .

[0130] After working for a period of time, Figure 6 , the budget pressure changes with the pressure and temperature of the gas in the gas cylinder 11. When the pressure of the gas cylinder 11 is equal to the budget pressure, Figure 7 At this time, the nitrogen filling pump automatically stops and the nitrogen filling work is completed. Press the return button to enter the initial state screen, and the entire air preparation process is completed.

[0131] Prepare 24.5% air at 33 MPa, the gas pressure in gas cylinder 11 is 3 MPa, and the original air ratio is 23%.

[0132] like Figure 8 , enter 24.5 in the Prepared Air Ratio % box, and enter 33 in the Prepared Air Pressure MPa box. The pressure displayed in the Budgeted Oxygen Filling box is 7.395MPa, and the pressure displayed in the Budgeted Nitrogen Filling Pressure MPa box is 33MPa.

[0133] The gas temperature of 20℃ is the online detection temperature of the system.

[0134] The initial pressure of gas cylinder 11 is 3 MPa, which is the online detection pressure of the system.

[0135] Press the oxygen filling button, and the oxygen filling pump starts to work and fills the gas cylinder 11. After working for a period of time, Fig. 9 , the budget pressure changes with the pressure and temperature of the gas in the gas cylinder 11. When the pressure of the gas cylinder 11 is equal to the budget pressure, Fig.10 , then the oxygen filling pump automatically stops, and the oxygen filling work is completed. Press the return button to enter the nitrogen filling work screen. After working for a period of time, if Fig.11 , the budget pressure changes with the pressure and temperature of the gas in the gas cylinder 11. When the pressure of the gas cylinder 11 is equal to the budget pressure, Fig.12 At this time, the nitrogen filling pump automatically stops and the nitrogen filling work is completed. Press the return button to enter the initial state screen, and the entire air preparation process is completed. Note: The temperature in the figure is the input value of the simulation calculation.

[0136] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A breathing gas configuration device, characterized in that: include: Two sets of gas mixing bottles; An air intake assembly, one end of which is connected to the gas mixing bottle; A first stop valve, mounted on the air intake assembly; An oxygen inlet assembly, one end of which has an air outlet connected to the air inlet assembly; A nitrogen inlet assembly, one end of which has a gas outlet connected to the gas inlet assembly; A detection assembly is connected to the other ends of the two sets of gas mixing bottles; A temperature sensor is installed on the gas mixing bottle; A controller, electrically connected to the oxygen inlet assembly, the nitrogen inlet assembly and the temperature sensor; Wherein, the air intake assembly comprises: An air intake manifold, one end of which is connected to the first stop valve; A first three-way pipe, arranged at the other end of the intake manifold; Branch pipes, the remaining two connecting ports of the first three-way pipe are both provided with the branch pipes, wherein the pipe diameters and lengths of the two branch pipes are the same; an air inlet pipe, one end of which is connected to the other end of the branch pipe; A gas cylinder valve is arranged at the gas inlet end of the gas mixing bottle, and the other end of the gas cylinder valve is communicated with the gas inlet pipe.

2. The breathing gas configuration device according to claim 1, characterized in that: Each group of the mixed gas bottles includes two gas cylinders; each of the gas cylinders is connected to an air inlet pipe, and the other ends of the two air inlet pipes are connected to the branch pipe through a second three-way pipe.

3. The breathing gas configuration device according to claim 1, characterized in that: The oxygen inlet assembly comprises: An oxygen inlet tube, one end of which is connected to an external oxygen supply component; an oxygen booster pump connected to the other end of the oxygen inlet pipe; A second stop valve is installed on the oxygen inlet pipe; A first filter, mounted on the oxygen inlet pipe; A driving air inlet pipe connected to the oxygen booster pump; a first solenoid valve, mounted on the driving air inlet pipe, the first solenoid valve being electrically connected to the controller; An air delivery pipeline, one end of which is connected to the oxygen booster pump, and the other end of which is connected to the air intake assembly; A third stop valve is installed on the air supply pipeline; A vent valve connected to the gas supply pipeline through a third three-way pipe; The ball valve is connected to the driving air inlet pipe of the oxygen booster pump through a pipeline.

4. The breathing gas configuration device according to claim 3, characterized in that: The oxygen inlet assembly has the same structure as the nitrogen inlet assembly.

5. The breathing gas configuration device according to claim 1, characterized in that: The breathing gas configuration device further comprises: A pressure relief pipe, one end of which is connected to the air intake assembly; A root valve installed on the pressure relief pipe; A first safety valve installed at the other end of the pressure relief pipe; A pressure sensor, installed on the pressure relief pipe and located between the root valve and the first safety valve; Wherein, the pressure sensor is electrically connected to the controller.

6. The breathing gas configuration device according to claim 1, characterized in that: The detection component comprises: A detection pipeline, one end of which is connected to the gas mixing bottle; A spare valve is installed at one end of the detection pipeline close to the gas mixing bottle; a fourth stop valve, installed on the detection pipeline and located on a side of the standby valve away from the gas mixing bottle; a pressure reducing valve, installed on the detection pipeline and located on a side of the fourth stop valve away from the standby valve; a fifth stop valve, installed on the detection pipeline and located on a side of the pressure reducing valve away from the fourth stop valve; an oxygen analyzer, connected to the other end of the detection pipeline; A connecting pipe, one end of which is connected to the detection pipeline and is located between the fifth stop valve and the pressure reducing valve; An on-site pressure gauge installed on the connecting pipe; The second safety valve is installed on the connecting pipe through a fourth three-way valve.

7. A method for configuring a breathing gas configuration device according to any one of claims 1 to 6, characterized in that: The steps include: S01. According to the volume V of the gas cylinder and the final mixed gas pressure P, the state of the mixed gas is assumed to be P0V / T0; S02, calculate the initial oxygen value filled in the standard state according to the oxygen concentration in the air after mixing, which is P1V / T1; S03, control the configuration device to switch to the oxygenation mode for oxygenation, the oxygen value during the oxygenation process is P2V / T2, and the oxygenation is automatically stopped when P2V / T2= P1V / T1 is satisfied; S04. Switch to nitrogen charging mode for nitrogen charging. During the charging process, the value of the mixed gas is P3V / T3. When the condition of P3V / T3= P0V / T0 is met, nitrogen charging is automatically stopped.

8. The method for disposing a breathing gas disposing device according to claim 1, characterized in that: The configuration method further comprises the following steps: S05. After the mixed gas is left to stand, sampling and testing are performed; S06. If the test is qualified, the configuration device is shut down; if the test is unqualified, the gas is supplemented and inflated according to the detected oxygen content and nitrogen content; S07. After refilling and inflation, repeat steps S05 and S06.

9. The method for disposing a breathing gas disposing device according to claim 1, characterized in that: When oxygen and nitrogen are being charged, the temperature and pressure in the process of oxygen and nitrogen charging are detected in real time through the detection component.

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