Breathing gas distribution device

Abstract

The utility model provides a breathing gas distribution device, and relates to the technical field of gas configuration. The breathing gas distribution device comprises a plurality of gas cylinders; the oxygen detection assembly is communicated with one end of the gas cylinder; the gas cylinder valve is arranged at the other end of the gas cylinder; the gas distributing pipe is communicated with the gas cylinder valve; first three-way valves are arranged at the two ends of the branch pipe, and the other end of the branch pipe communicates with the first three-way valves; the air inlet header pipe is communicated with the branch pipe through a second three-way valve; the first stop valve is mounted on the air inlet main pipe; the oxygen inlet assembly is communicated with the air inlet main pipe; the nitrogen inlet assembly is communicated with the gas inlet main pipe; the temperature sensor is mounted on the gas cylinder; the pressure sensor is communicated with the air inlet main pipe; and the controller is electrically connected with the oxygen detection assembly, the oxygen inlet assembly, the nitrogen inlet assembly, the temperature sensor and the pressure sensor. By adopting the device to distribute gas, the automation degree is higher, and the influence of human factors is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas configuration, in particular to a breathing gas distribution device. Background Art

[0002] A mixed gas, defined as a mixture of several gases containing two or more active components, or a non-active component whose content exceeds a specified limit, is a commonly used working fluid in engineering. Mixed gases are often studied as ideal gases and are an indispensable component in existing experiments and applications.

[0003] Therefore, a gas mixing device is needed. Traditional mixing devices have low mixing accuracy and the mixing and gas production process is not fast and convenient enough during the gas mixing process due to human factors and complicated operating procedures, which affects the quality of the gas mixing. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a breathing gas distribution device, which can achieve a higher degree of automation in gas distribution and reduce the influence of human factors.

[0005] The technical solution adopted in this utility model is:

[0006] A breathing gas distribution device, comprising:

[0007] multiple gas cylinders;

[0008] an oxygen detection assembly, connected to one end of the gas cylinder;

[0009] a gas cylinder valve, disposed at the other end of the gas cylinder;

[0010] A gas distribution pipe, connected to the gas cylinder valve;

[0011] A branch pipe, both ends of which are provided with a first three-way valve, and the other end of the branch pipe is connected to the first three-way valve;

[0012] an air intake manifold, connected to the branch pipe via a second three-way valve;

[0013] a first stop valve, mounted on the intake manifold;

[0014] an oxygen inlet assembly, connected to the intake manifold;

[0015] a nitrogen inlet assembly, connected to the intake manifold;

[0016] a temperature sensor, mounted on the gas cylinder;

[0017] a pressure sensor, connected to the intake manifold;

[0018] The controller is electrically connected to the oxygen detection component, the oxygen inlet component, the nitrogen inlet component, the temperature sensor and the pressure sensor.

[0019] Optionally, the oxygen detection component includes:

[0020] a detection pipe, one end of which is connected to the gas cylinder;

[0021] a detection gas pipe, one end of which is connected to the detection pipeline through a third three-way valve; a spare valve, a second stop valve, a pressure reducing valve, a third stop valve and an oxygen analyzer are sequentially provided on the detection gas pipe; the spare valve is provided near the gas cylinder;

[0022] A connecting pipe is provided on the detection air pipe, and the connecting pipe is provided between the pressure reducing valve and the second stop valve;

[0023] An on-site pressure gauge is provided at the other end of the connecting pipe;

[0024] The first safety valve is connected to the connecting pipe through the fourth three-way valve.

[0025] Optionally, the oxygen inlet assembly includes:

[0026] an oxygen inlet pipe, one end of which is connected to the external oxygen supply component, and the oxygen inlet pipe is sequentially provided with a fourth shut-off valve and a first filter;

[0027] an oxygen booster pump connected to one end of the oxygen inlet pipe close to the first filter;

[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 controller being electrically connected to the first solenoid valve;

[0030] an air delivery pipe, one end of which is connected to the oxygen booster pump and the other end of which is connected to the air intake manifold;

[0031] a fifth stop valve, installed on the air supply pipeline;

[0032] a vent valve connected to the air supply pipeline through a fifth three-way valve;

[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 and the nitrogen inlet assembly have the same structure.

[0035] Optionally, the gas distribution device further comprises:

[0036] a pressure relief pipe, one end of which is connected to the intake manifold, and the pressure sensor is mounted on the pressure relief pipe;

[0037] a root valve, arranged on the pressure relief pipe;

[0038] The second safety valve is installed at the other end of the pressure relief pipe.

[0039] Optionally, the gas distribution device further comprises:

[0040] Install the frame;

[0041] Two installation layers are fixedly arranged in the installation frame. Two gas cylinders are installed on each installation layer, and the gas distribution pipes on each gas cylinder have the same length.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] 1. The gas distribution device is used for automatic gas distribution, which has a higher degree of automation and is not affected by human factors such as operating experience, operating skills, proficiency, etc.

[0044] 2. The equipment is simple to operate and easy to maintain. The gas distribution is automatically carried out according to the program, with fast gas distribution speed and high ratio accuracy, which effectively improves the gas mixing efficiency.

[0045] 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

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0047] Figure 1 This is a schematic diagram of the overall structure of the breathing gas distribution device.

[0048] Figure 2 This is a schematic diagram of the partial structure of the breathing gas distribution device.

[0049] Reference numerals:

[0050] 1. Gas cylinder;

[0051] 2. Oxygen detection assembly; 21. Detection pipeline; 22. Detection air pipe; 23. Third three-way valve; 24. Backup valve; 25. Second stop valve; 26. Pressure reducing valve; 27. Third stop valve; 28. Oxygen analyzer; 29. Connecting pipe; 210. Local pressure gauge; 220. First safety valve; 230. Fourth three-way valve;

[0052] 3. Gas distribution pipe;

[0053] 4. Gas cylinder valve;

[0054] 5. In charge;

[0055] 6. First three-way valve;

[0056] 7. Air intake manifold;

[0057] 8. Second three-way valve;

[0058] 9. First stop valve;

[0059] 10. Oxygen inlet assembly; 101. Oxygen inlet pipe; 102. Fourth stop valve; 103. First filter; 104. Oxygen booster pump; 105. Drive air inlet pipe; 106. First solenoid valve; 107. Air delivery pipe; 108. Fifth stop valve; 109. Vent valve; 1010. Fifth three-way valve; 1020. Ball valve;

[0060] 110. Nitrogen inlet assembly;

[0061] 120. Temperature sensor;

[0062] 130. Pressure sensor;

[0063] 140. Controller;

[0064] 150. Pressure relief pipe;

[0065] 160, root valve;

[0066] 170, second safety valve;

[0067] 180. Install the frame;

[0068] 190. Installation layer. DETAILED DESCRIPTION

[0069] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0070] In the description of the present invention, it should be understood that the terms "length", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are usually placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0072] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0073] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0074] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0075] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0076] like Figure 1 As shown, an embodiment of the present invention provides a breathing gas distribution device, comprising: a plurality of gas cylinders 1, an oxygen detection assembly 2, a gas branch pipe 3, a gas cylinder valve 4, a branch pipe 5, an air intake manifold 7, a first stop valve 9, an oxygen inlet assembly 10, a nitrogen inlet assembly 110, a temperature sensor 120, a pressure sensor 130 and a controller 140. The oxygen detection assembly 2 is connected to one end of the gas cylinder 1. The other end of each gas cylinder 1 is connected to the gas branch pipe 3 through the gas cylinder valve 4. A first three-way valve 6 is provided at both ends of the branch pipe 5, and the other end of the gas branch pipe 3 is connected to the first three-way valve 6. The air intake manifold 7 is connected to the branch pipe 5 through the second three-way valve 8. The first stop valve 9 is installed on the air intake manifold 7. The oxygen inlet assembly 10 and the nitrogen inlet assembly 110 are both connected to the air intake manifold 7. The temperature sensor 120 is installed on the gas cylinder 1, and the pressure sensor 130 is connected to the air intake manifold 7. The controller 140 is electrically connected to the oxygen detection assembly 2 , the oxygen inlet assembly 10 , the nitrogen inlet assembly 110 , the temperature sensor 120 and the pressure sensor 130 .

[0077] During use, the controller 140 receives a gas mixing instruction and first controls the oxygen inlet component 10 to supply oxygen, and oxygen enters the gas mixing bottle 1. When the oxygen intake meets the standard, the controller 140 controls the oxygen inlet component 10 to stop working. Then the nitrogen inlet component 110 is controlled to supply nitrogen. After the nitrogen intake meets the standard, the controller 140 controls the nitrogen inlet component 110 to stop working. After the nitrogen is filled into the gas cylinder 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 a more complete mixing of oxygen and nitrogen. The fully mixed gas is then discharged into the oxygen detection component 2 for testing, and can be stored for future use if the test meets the standard. If there is a deviation, the oxygen or nitrogen is adjusted according to the test results of the oxygen detection component 2, and then a secondary test is performed until the gas meets the standard.

[0078] During gas mixing, during the oxygen supply process, temperature sensor 120 monitors the temperature in the area of gas cylinder 1 in real time, and pressure sensor 130 monitors the pressure during oxygen supply in real time. This allows controller 140 to modify the pressure parameter after oxygen filling based on the temperature, thereby controlling the amount of oxygen intake. During operation, nitrogen inlet assembly 110 monitors the temperature in the area of gas cylinder 1 in real time, and pressure sensor 130 monitors the pressure during nitrogen supply in real time. This allows controller 140 to modify the pressure parameter after nitrogen filling based on the temperature, thereby controlling the amount of nitrogen intake.

[0079] In order to ensure that the flow rate and pressure of high-purity oxygen or high-purity nitrogen in each gas cylinder 1 are the same and to avoid flow deviation during the inflation process, the length and diameter of each gas distribution pipe 3 set on the gas cylinder 1 are the same to ensure that the state of the mixed gas entering each gas cylinder 1 is the same.

[0080] In one embodiment, Figure 1 As shown, the oxygen detection assembly 2 includes: a detection pipeline 21, a detection air pipe 22, a connecting pipe 29, an on-site pressure gauge 210 and a first safety valve 220. One end of the detection pipeline 21 is connected to the gas cylinder 1, and the other end is connected to the detection air pipe 22 through the third three-way valve 23. The detection air pipe 22 is sequentially provided with a spare valve 24, a second stop valve 25, a pressure reducing valve 26, a third stop valve 27 and an oxygen analyzer 28, wherein the spare valve 24 is arranged close to the gas cylinder 1. The connecting pipe 29 is arranged on the detection air pipe 22, and the connecting pipe 29 is arranged between the pressure reducing valve 26 and the second stop valve 25. The on-site pressure gauge 210 is arranged at the other end of the connecting pipe 29. The first safety valve 220 is connected to the connecting pipe 29 through the fourth three-way valve 230.

[0081] When testing is required, controller 140 controls the opening of backup valve 24, second shut-off valve 25, pressure reducing valve 26, and third shut-off valve 27, allowing oxygen decompressed by pressure reducing valve 26 to enter oxygen analyzer 28. During the testing and analysis process, a local pressure gauge 210 monitors the pressure in real time. When the local pressure gauge 210 detects that the pressure entering the test air pipe 22 is greater than a preset value, it feeds this information back to controller 140, which then controls the opening of first safety valve 220 to ensure safe operation of the equipment.

[0082] In one embodiment, Figure 1As shown, the oxygen inlet assembly 10 includes an oxygen inlet pipe 101, an oxygen booster pump 104, a driving air inlet pipe 105, a first solenoid valve 106, an air supply pipe 107, a fifth shut-off valve 108, a vent valve 109, and a ball valve 1020. One end of the oxygen inlet pipe 101 is connected to the external oxygen supply assembly. A fourth shut-off valve 102 and a first filter 103 are sequentially disposed on the oxygen inlet pipe 101. The oxygen booster pump 104 is connected to the end of the oxygen inlet pipe 101 near the first filter 103. The driving air inlet pipe 105 is connected to the oxygen booster pump 104. The first solenoid valve 106 is mounted on the driving air inlet pipe 105, and a controller 140 is electrically connected to the first solenoid valve 106. The air supply pipe 107 is connected to the oxygen booster pump 104 at one end and to the intake manifold 7 at the other end. The fifth shut-off valve 108 is mounted on the air supply pipe 107. The vent valve 109 is connected to the air supply pipe 107 through the fifth three-way valve 1010. The ball valve 1020 is connected to the driving air inlet pipe 105 of the oxygen booster pump 104 through a pipeline.

[0083] During oxygenation, controller 140 activates first solenoid valve 106, ensuring that oxygen booster pump 104 receives a source of gas for boosting. Oxygen enters oxygen booster pump 104 through oxygen inlet pipe 101. After passing through oxygen booster pump 104, the oxygen enters gas mixing cylinder 1 under a certain pressure. Before entering oxygen booster pump 104, the oxygen is first filtered through first filter 103 to prevent impurities from entering gas cylinder 1 and affecting the quality of the mixed gas.

[0084] In one embodiment, Figure 1 As shown, the oxygen inlet assembly 10 and the nitrogen inlet assembly 110 have the same structure.

[0085] In one embodiment, Figure 1 As shown, the valve distribution device further includes a pressure relief pipe 150, a root valve 160, and a second safety valve 170. One end of the pressure relief pipe 150 is connected to the intake manifold 7, and the pressure sensor 130 is installed on the pressure relief pipe 150. The root valve 160 is installed on the pressure relief pipe 150. The second safety valve 170 is installed on the other end of the pressure relief pipe 150.

[0086] When in use, the pressure sensor 130 detects the pressure in the gas cylinder 1 in real time and feeds back the pressure data to the controller 140 in real time. The controller 140 controls the working state of the booster pump according to the pressure and temperature.

[0087] When the safety valve is calibrated offline, the root valve 160 is in a closed state.

[0088] In one embodiment, Figure 2As shown, the gas distribution device further includes: a mounting frame 180 and two mounting layers 190. The two mounting layers 190 are fixedly arranged in the mounting frame 180, and two gas cylinders 1 are mounted on each mounting layer 190, and the gas distribution pipes 3 on each gas cylinder 1 are of the same length.

[0089] To reduce the number of gas distribution times, two gas cylinders 1 are installed on each installation layer 190. Each gas cylinder 1 is connected to a gas inlet pipe 3, and the length of each gas inlet pipe 3 is the same to ensure that the flow rate and pressure of oxygen and nitrogen entering the gas cylinder 1 are the same, further avoiding flow deviation during the inflation process.

[0090] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A breathing gas distribution device, characterized in that: include: multiple gas cylinders; an oxygen detection assembly, connected to one end of the gas cylinder; a gas cylinder valve, disposed at the other end of the gas cylinder; A gas distribution pipe, connected to the gas cylinder valve; A branch pipe, both ends of which are provided with a first three-way valve, and the other end of the branch pipe is connected to the first three-way valve; an air intake manifold, connected to the branch pipe via a second three-way valve; a first stop valve, mounted on the intake manifold; an oxygen inlet assembly, connected to the intake manifold; a nitrogen inlet assembly, connected to the intake manifold; a temperature sensor, mounted on the gas cylinder; a pressure sensor, connected to the intake manifold; The controller is electrically connected to the oxygen detection component, the oxygen inlet component, the nitrogen inlet component, the temperature sensor and the pressure sensor.

2. The breathing gas distribution device according to claim 1, characterized in that: The oxygen detection component includes: a detection pipe, one end of which is connected to the gas cylinder; a detection gas pipe, one end of which is connected to the detection pipeline through a third three-way valve; a spare valve, a second stop valve, a pressure reducing valve, a third stop valve and an oxygen analyzer are sequentially provided on the detection gas pipe; the spare valve is provided near the gas cylinder; A connecting pipe is provided on the detection air pipe, and the connecting pipe is provided between the pressure reducing valve and the second stop valve; An on-site pressure gauge is provided at the other end of the connecting pipe; The first safety valve is connected to the connecting pipe through the fourth three-way valve.

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

4. The breathing gas distribution device according to claim 1, characterized in that: The oxygen inlet assembly has the same structure as the nitrogen inlet assembly.

5. The breathing gas distribution device according to claim 1, characterized in that: The gas distribution device further comprises: a pressure relief pipe, one end of which is connected to the intake manifold, and the pressure sensor is mounted on the pressure relief pipe; a root valve, arranged on the pressure relief pipe; The second safety valve is installed at the other end of the pressure relief pipe.

6. The breathing gas distribution device according to claim 1, characterized in that: The gas distribution device further comprises: Install the frame; Two installation layers are fixedly arranged in the installation frame. Two gas cylinders are installed on each installation layer, and the gas distribution pipes on each gas cylinder have the same length.

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