CN220853972U - Micro-pressure induction gas circuit system and oxygenerator using same - Google Patents
Micro-pressure induction gas circuit system and oxygenerator using same Download PDFInfo
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- CN220853972U CN220853972U CN202322761601.1U CN202322761601U CN220853972U CN 220853972 U CN220853972 U CN 220853972U CN 202322761601 U CN202322761601 U CN 202322761601U CN 220853972 U CN220853972 U CN 220853972U
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- oxygen outlet
- oxygen
- gas circuit
- pressure
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- 230000006698 induction Effects 0.000 title claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 195
- 239000001301 oxygen Substances 0.000 claims abstract description 194
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 194
- 239000007789 gas Substances 0.000 claims abstract description 115
- 238000007789 sealing Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 9
- 238000000605 extraction Methods 0.000 abstract 1
- 230000000241 respiratory effect Effects 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000002808 molecular sieve Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a micro-pressure sensing gas circuit system and an oxygenerator using the same, which are used for detecting the pressure of breathing gas in the oxygenerator, wherein the micro-pressure sensing gas circuit system comprises a lead-out gas circuit, a middle gas circuit, a discharge gas circuit and a micro-pressure sensor; the extraction gas path is a bypass extracted from the oxygen outlet cavity and the oxygen outlet nozzle; the middle gas circuit is connected with the lead-out gas circuit and the micro-pressure sensor; the exhaust gas channel is arranged on the micro-pressure sensor, and the air outlet of the exhaust gas channel is communicated with the outside air. According to the utility model, the leading-out gas circuit in the micro-pressure induction gas circuit system is designed to be led out from the oxygen outlet cavity and the oxygen outlet nozzle, so that breathing gas can directly pass through the leading-out gas circuit and the middle gas circuit from the oxygen outlet nozzle to reach the micro-pressure sensor, and the pressure of the micro-pressure induction gas is in the range of the measuring range, so that the gas circuit element is protected from being damaged due to overlarge pressure, and a pressure release bin is not required to be arranged to reduce the pressure of the gas, thereby saving the gas circuit space.
Description
Technical Field
The utility model relates to the technical field of oxygenerator equipment, in particular to a micro-pressure induction gas circuit system and an oxygenerator using the same.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The oxygenerator mainly comprises a base, a compressor and an integrated absorber, wherein the compressor is communicated with the integrated absorber and is arranged on the base, the integrated absorber comprises a diaphragm valve, a molecular sieve barrel, an oxygen barrel and a pressure regulating valve which are sequentially communicated, the compressor compresses air and then transmits the compressed air into the molecular sieve barrel, the molecular sieve barrel adsorbs nitrogen in the compressed air and then purifies the compressed air to obtain high-concentration oxygen, the high-concentration oxygen is transmitted into the oxygen barrel and then is transmitted to an oxygen outlet of the oxygenerator, and the oxygen is transmitted to a patient for breathing after passing through a filter piece and a throttling piece of the oxygen outlet.
In order to obtain an important parameter value of the respiratory gas pressure, a micro-pressure sensor is usually required to be used at the rear end of the oxygen outlet gas path for detection, and the micro-pressure sensor fails due to the fact that the respiratory gas pressure is larger than the range of the micro-pressure sensor due to the fact that a filter piece (generating resistance) of the oxygen outlet and the throttling of a pipeline.
In order to solve the problem that the pressure of the oxygen outlet gas path is larger than the measuring range of the micro-pressure sensor, the applicant adopts the prior proposal that a pressure release bin is arranged at the rear end of the filter element, and the gas path led out of the pressure release bin is communicated with the micro-pressure sensor, so that the pressure value transmitted to the micro-pressure sensor is reduced. The way can lead to more complex air path in the oxygenerator, and the internal space of the oxygenerator is occupied by the pressure release bin and the air path.
In view of this, how to solve the problems of micro-pressure sensor failure caused by excessive pressure of the oxygen outlet gas path or more complex gas path inside the oxygenerator caused by arrangement of the pressure release bin existing in the conventional gas path using the micro-pressure sensor is the subject to be studied and solved by the utility model.
Disclosure of Invention
The utility model aims to provide a micro-pressure induction gas circuit system and an oxygenerator using the same.
In order to achieve the above object, a first aspect of the present utility model provides a micro-pressure sensing gas circuit system for detecting the pressure of respiratory gas in an oxygen generator, the oxygen generator includes an oxygen storage barrel assembly, an oxygen channel and an oxygen outlet are provided on the oxygen storage barrel assembly, the oxygen outlet has an oxygen outlet cavity, and a filter and an oxygen outlet nozzle are installed in the oxygen outlet cavity, the innovation point is that:
The micro-pressure sensing gas circuit system comprises a connecting pipeline, one end of the connecting pipeline is communicated with the oxygen outlet cavity, and the other end of the connecting pipeline is communicated with the micro-pressure sensor.
To achieve the above object, a second aspect of the present utility model provides an oxygen generator using a micro-pressure induction gas circuit system according to the first aspect of the present utility model.
The content of the present utility model is explained as follows:
1. According to the technical scheme, the problems that the micro-pressure sensor is invalid due to overlarge pressure of an oxygen outlet gas channel of the existing micro-pressure sensor or the gas channel inside the oxygen generator is more complicated due to arrangement of a pressure release bin are mainly solved, the gas outlet channel in a micro-pressure sensing gas channel system is designed to be led out from an oxygen outlet cavity and an oxygen outlet nozzle, so that breathing gas can directly reach the micro-pressure sensor from the oxygen outlet nozzle through the gas channel of a connecting pipeline, the arrangement is such that the gas pressure caused by a filter and a throttling piece cannot act on the micro-pressure sensor, the gas pressure sensed by the micro-pressure sensor is in a range, damage to a gas channel element due to overlarge pressure is prevented, and meanwhile, the gas pressure is not required to be reduced due to the fact that the gas pressure does not exceed the range of the micro-pressure sensor, so that the gas pressure is not required to be reduced, and the gas channel space can be saved.
2. In the above technical scheme, the oxygen outlet nozzle is detachably connected with the oxygen outlet cavity, the oxygen outlet nozzle is provided with an oxygen outlet hole, the oxygen outlet nozzle is provided with a first side hole at the side of the oxygen outlet hole, the side of the oxygen outlet cavity is provided with a second side hole corresponding to the first side hole, and the second side hole is communicated with the connecting pipeline. Therefore, the layout of the connecting pipelines is more reasonable, and the occupied space is reduced.
3. In the above technical scheme, the oxygen outlet nozzle is connected with the oxygen outlet cavity in a screwed connection mode, a circumferential fit clearance is formed between the oxygen outlet nozzle and the oxygen outlet cavity at the positions corresponding to the first side hole and the second side hole, a communicated space is formed by the first side hole, the fit clearance and the second side hole, and the communicated space is used for further reducing the pressure of breathing gas, so that the design is reasonable and ingenious.
4. In the above technical scheme, an inner sealing ring is arranged between the oxygen outlet nozzle and the oxygen outlet cavity at the inner side of the first side hole, and an outer sealing ring is arranged between the oxygen outlet nozzle and the oxygen outlet cavity at the outer side of the first side hole. The sealing performance between the oxygen outlet nozzle and the oxygen outlet cavity is guaranteed, the sealing performance of oxygen outlet gas of the oxygen outlet nozzle is guaranteed, gas entering the connecting pipeline and the micro-pressure sensor is guaranteed not to leak, and the measurement accuracy of the micro-pressure sensor is guaranteed.
5. In the above technical scheme, the outer side of the inner edge of the oxygen outlet cavity is a conical surface with a gradually outwards enlarged diameter, the outer sealing ring is in sealing fit with the conical surface, and the fit clearance covers part of the conical surface. The sealing fit of the oxygen outlet cavity and the oxygen outlet nozzle is more reasonable, and the space and the shape of the fit clearance are more suitable for pressure release.
6. In the above technical scheme, the oxygen outlet cavity is provided with a side hole air tap at the second side hole, and the side hole air tap is used for being connected with the connecting pipeline. Therefore, the connection between the lead-out air channel and the middle air channel is more convenient and quicker, and the assembly is convenient.
7. In the above technical scheme, the oxygen outlet nozzle is provided with an air outlet buffer cavity communicated with the oxygen outlet hole in front of the oxygen outlet hole, and the front end of the air outlet buffer cavity is provided with a filter element.
8. In the above technical scheme, the bottom of the oxygen outlet cavity is provided with a pressure release cavity, and the pressure release cavity is positioned in front of the filter element and is communicated with the oxygen channel.
9. In the above technical scheme, the micro-pressure sensor is a differential pressure sensor, and an exhaust gas path is further arranged on the micro-pressure sensor, and a gas outlet of the exhaust gas path is communicated with the outside air.
10. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically linked, may be directly linked, may be indirectly linked through an intervening medium, and may be in communication between two elements or in an interactive relationship therebetween, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
11. In the present utility model, the positional or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the positional or positional fitting relationship shown in the drawings, and are merely for convenience of description of the present utility model and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
12. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Due to the application of the scheme, compared with the prior art, the utility model has the following advantages and effects:
1. According to the scheme, the problem that the micro-pressure sensor is invalid due to overlarge pressure of an oxygen outlet gas channel or the problem that the gas channel inside an oxygen generator is more complicated due to arrangement of a pressure release bin in the existing gas channel using the micro-pressure sensor is mainly solved, the gas outlet channel in a micro-pressure sensing gas channel system is designed to be led out from an oxygen outlet cavity and an oxygen outlet nozzle, so that breathing gas can directly pass through the gas outlet nozzle and the middle gas channel to reach the micro-pressure sensor, and the arrangement is such that gas pressure caused by a filter and a throttling piece cannot act on the micro-pressure sensor, so that the gas pressure sensed by the micro-pressure is in a range, and therefore, a gas channel element is protected from damage caused by overlarge pressure.
2. According to the scheme, the micro-pressure sensing gas circuit system is arranged, so that the condition that the gas pressure passing through the micro-pressure sensor does not exceed the range of the micro-pressure sensor is avoided, and therefore a pressure release bin is not required to be arranged for reducing the gas pressure, and the gas circuit space can be saved.
Drawings
FIG. 1 is an exploded view of an embodiment of the present utility model;
FIG. 2 is a front view of an embodiment of the present utility model;
FIG. 3 is a schematic view of the cross-section A-A of FIG. 2;
FIG. 4 is a schematic diagram of the flow of gas according to an embodiment of the present utility model;
FIG. 5 is a schematic view of the B-B cross-section of FIG. 3;
FIG. 6 is a schematic view of an assembly cross section (direction one) of an oxygen outlet nozzle and an oxygen outlet cavity according to an embodiment of the present utility model;
FIG. 7 is a schematic view of an assembly cross section (direction II) of an oxygen outlet nozzle and an oxygen outlet cavity according to an embodiment of the present utility model;
FIG. 8 is a schematic perspective view of an oxygen nozzle according to an embodiment of the present utility model.
The parts of the above figures are shown as follows:
1. Oxygen storage barrel assembly
2. Oxygen channel
3. Oxygen outlet
4. Oxygen outlet cavity
41. Second side hole
42. Conical surface
43. Side hole air tap
5. Filter element
6. Oxygen outlet nozzle
61. Oxygen outlet hole
62. First side hole
71. Fit clearance
8. Connecting pipeline
9. Exhaust gas path
10. Micro-pressure sensor
11. Inner sealing ring
12. And an outer sealing ring.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
An embodiment I, as shown in fig. 1 to 8, discloses a micro-pressure sensing gas circuit system for detecting the pressure of breathing gas in an oxygen generator, wherein the oxygen generator comprises an oxygen storage barrel assembly 1, an oxygen channel 2 and an oxygen outlet 3 are arranged on the oxygen storage barrel assembly 1, an oxygen outlet cavity 4 is arranged at the oxygen outlet 3, and a filter 5 and an oxygen outlet nozzle 6 are arranged in the oxygen outlet cavity 4. The micro-pressure sensing gas circuit system comprises a connecting pipeline 8, one end of the connecting pipeline 8 is communicated with the oxygen outlet cavity 4, and the other end of the connecting pipeline is communicated with a micro-pressure sensor 10.
According to the embodiment of the utility model, the leading-out gas circuit in the micro-pressure sensing gas circuit system is mainly designed to be led out from the oxygen outlet cavity 4 and the oxygen outlet nozzle 6, so that breathing gas can directly reach the micro-pressure sensor 10 from the oxygen outlet nozzle 6 through the connecting pipeline 8, the arrangement is such that the gas pressure caused by the filter element 5 and the throttling element cannot act on the micro-pressure sensor 10, the gas pressure sensed by the micro-pressure is in the range of the range, the gas circuit element is protected from damage caused by overlarge pressure, and meanwhile, the gas pressure does not exceed the range of the micro-pressure sensor 10 because the gas pressure does not exist, the pressure releasing bin is not required to be arranged to reduce the gas pressure, so that the gas circuit space can be saved.
In the first embodiment of the present utility model, the oxygen outlet nozzle 6 is detachably connected with the oxygen outlet cavity 4, the oxygen outlet nozzle 6 has an oxygen outlet hole 61, a first side hole 62 is formed at a side of the oxygen outlet hole 61 of the oxygen outlet nozzle 6, a second side hole 41 is formed at a side of the oxygen outlet cavity 4 corresponding to the first side hole 62, and the second side hole 41 is communicated with the connecting pipeline 8. Thereby, the layout of the connecting pipeline 8 is more reasonable, and the occupied space is reduced.
In the first embodiment of the present utility model, the oxygen outlet nozzle 6 is screwed with the oxygen outlet cavity 4, a circumferential fit gap 71 is provided between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the positions corresponding to the first side hole 62 and the second side hole 41, and a communication space formed by the first side hole 62, the fit gap 71 and the second side hole 41 is used as a communication space for further reducing the pressure of the breathing gas, so that the design is reasonable and smart.
In the first embodiment of the present utility model, an inner sealing ring 11 is disposed between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the inner side of the first side hole 62, and an outer sealing ring 12 is disposed between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the outer side of the first side hole 62. The sealing performance between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 is ensured, the sealing performance of oxygen outlet gas of the oxygen outlet nozzle 6 is ensured, gas entering the connecting pipeline 8 and entering the micro-pressure sensor 10 is also ensured not to leak, and the measurement accuracy of the micro-pressure sensor 10 is ensured. Further, the outer side of the inner edge of the oxygen outlet cavity 4 is a tapered surface 42 with a gradually expanding diameter, the outer sealing ring 12 is in sealing fit with the tapered surface 42, and the fit gap 71 covers a part of the tapered surface 42. The sealing fit of the oxygen outlet cavity 4 and the oxygen outlet nozzle 6 is more reasonable, and the space and the shape of the fit gap 71 are more suitable for pressure release.
In the first embodiment of the present utility model, the oxygen outlet cavity 4 is provided with a side hole air tap 43 at the second side hole 41, and the side hole air tap 43 is used for being connected with the connecting pipeline 8. Therefore, the connection between the lead-out air channel and the middle air channel is more convenient and quicker, and the assembly is convenient.
In the first embodiment of the present utility model, the oxygen outlet nozzle 6 is provided with an air outlet buffer cavity in front of the oxygen outlet hole 61 and communicated with the oxygen outlet hole 61, and a filter element 5 is provided at the front end of the air outlet buffer cavity. The bottom of the oxygen outlet cavity 4 is provided with a pressure release cavity which is positioned in front of the filter element 5 and is communicated with the oxygen channel 2
In the first embodiment of the present utility model, the micro-pressure sensor 10 is a differential pressure sensor, the micro-pressure sensor 10 is further provided with an exhaust gas path 9, and an air outlet of the exhaust gas path 9 is communicated with the outside air.
In a second embodiment, the present utility model provides an oxygen generator, and the oxygen generator uses the micro-pressure sensing gas circuit system in the first embodiment of the present utility model.
In addition, an oxygen generator to which the scheme of the present utility model is practically applied will be described.
As shown in fig. 1 to 8, the oxygen generator comprises an oxygen storage barrel assembly 1 and a micro-pressure sensing gas circuit system matched with the oxygen storage barrel assembly 1, wherein an oxygen channel 2 and an oxygen outlet 3 are arranged on the oxygen storage barrel assembly 1, an oxygen outlet cavity 4 is arranged at the oxygen outlet 3, a filter element 5 and an oxygen outlet nozzle 6 are arranged in the oxygen outlet cavity 4, the oxygen outlet nozzle 6 is provided with an oxygen outlet hole 61, an air outlet buffer cavity communicated with the oxygen outlet hole 61 is arranged in front of the oxygen outlet hole 61 by the oxygen outlet nozzle 6, and the front end of the air outlet buffer cavity is provided with the filter element 5; the bottom of the oxygen outlet cavity 4 is provided with a pressure release cavity which is positioned in front of the filter element 5 and is communicated with the oxygen channel 2; the oxygen outlet nozzle 6 is in threaded connection with the oxygen outlet cavity 4, the oxygen outlet nozzle 6 is provided with an oxygen outlet hole 61, a first side hole 62 is formed at the side of the oxygen outlet hole 61 of the oxygen outlet nozzle 6, a second side hole 41 is formed at the side of the oxygen outlet cavity 4 corresponding to the first side hole 62, the second side hole 41 is communicated with the connecting pipeline 8, a circumferential fit gap 71 is formed between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the position corresponding to the first side hole 62 and the second side hole 41, and a communicated space is formed by the first side hole 62, the fit gap 71 and the second side hole 41; an inner sealing ring 11 is arranged between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the inner side of the first side hole 62, an outer sealing ring 12 is arranged between the oxygen outlet nozzle 6 and the oxygen outlet cavity 4 at the outer side of the first side hole 62, the outer side of the inner edge of the oxygen outlet cavity 4 is a conical surface 42 with gradually outwards enlarged diameter, the outer sealing ring 12 is in sealing fit with the conical surface 42, the fit clearance 71 covers part of the conical surface 42, the oxygen outlet cavity 4 is provided with a side hole air nozzle 43 at the second side hole 41, and the side hole air nozzle 43 is used for being connected with the connecting pipeline 8; the micro-pressure sensing gas circuit system comprises a connecting pipeline 8, one end of the connecting pipeline 8 is communicated with the oxygen outlet cavity 4, the other end of the connecting pipeline is communicated with a micro-pressure sensor 10, the micro-pressure sensor 10 is a differential pressure sensor, unpressurized respiratory gas enters the micro-pressure sensor 10 from the oxygen channel 2 through the connecting pipeline 8, a discharge gas circuit 9 is further arranged on the micro-pressure sensor 10, and a gas outlet of the discharge gas circuit 9 is communicated with the outside air.
When the oxygen generator is used, the gas flow can be shown by referring to fig. 4, oxygen (O2) flows from the oxygen storage barrel assembly 1 to the oxygen outlet 3, then is discharged from the oxygen outlet cavity 4 and the oxygen outlet nozzle 6, and respiratory gas enters the connecting pipeline 8 of the micro-pressure sensing gas circuit system from the oxygen outlet hole 61 of the oxygen outlet nozzle 6 and then reaches the micro-pressure sensor 10, and the micro-pressure sensor 10 measures the respiratory gas pressure and then discharges the respiratory gas from the gas outlet circuit 9 without passing through the filter 5.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a micro-pressure response gas circuit system for breathe gaseous pressure detection in oxygenerator, oxygenerator includes stores up oxygen bucket subassembly (1), be provided with oxygen passageway (2) and play oxygen mouth (3) on storing up oxygen bucket subassembly (1), it has an out oxygen cavity (4) to go out oxygen mouth (3) department, go out and install out oxygen mouth (6) in oxygen cavity (4), its characterized in that:
The micro-pressure sensing gas circuit system comprises a connecting pipeline (8), one end of the connecting pipeline (8) is communicated with the oxygen outlet cavity (4), and the other end of the connecting pipeline is communicated with a micro-pressure sensor (10).
2. A micro-pressure sensing gas circuit system according to claim 1, wherein: the oxygen outlet nozzle (6) is detachably connected with the oxygen outlet cavity (4), the oxygen outlet nozzle (6) is provided with an oxygen outlet hole (61), the oxygen outlet nozzle (6) is provided with a first side hole (62) at the side of the oxygen outlet hole (61), the side of the oxygen outlet cavity (4) is provided with a second side hole (41) corresponding to the first side hole (62), and the second side hole (41) is communicated with the connecting pipeline (8).
3. A micro-pressure sensing gas circuit system according to claim 1, wherein: the oxygen outlet nozzle (6) is in threaded connection with the oxygen outlet cavity (4), a circumferential fit clearance (71) is formed between the oxygen outlet nozzle (6) and the oxygen outlet cavity (4) at positions corresponding to the first side hole (62) and the second side hole (41), and a communicated space is formed by the first side hole (62), the fit clearance (71) and the second side hole (41).
4. A micro-pressure sensing gas circuit system according to claim 3, wherein: an inner sealing ring (11) is arranged between the oxygen outlet nozzle (6) and the oxygen outlet cavity (4) at the inner side of the first side hole (62), and an outer sealing ring (12) is arranged between the oxygen outlet nozzle (6) and the oxygen outlet cavity (4) at the outer side of the first side hole (62).
5. The micro-pressure sensing gas circuit system according to claim 4, wherein: the outer side of the inner edge of the oxygen outlet cavity (4) is provided with a conical surface (42) with a gradually outwards-expanding diameter, the outer sealing ring (12) is in sealing fit with the conical surface (42), and the fit clearance (71) covers part of the conical surface (42).
6. A micro-pressure sensing gas circuit system according to claim 2, wherein: the oxygen outlet cavity (4) is provided with a side hole air tap (43) at the second side hole (41), and the side hole air tap (43) is used for being connected with the connecting pipeline (8).
7. A micro-pressure sensing gas circuit system according to claim 2, wherein: the oxygen outlet nozzle (6) is provided with an air outlet buffer cavity communicated with the oxygen outlet hole (61) in front of the oxygen outlet hole (61), and the front end of the air outlet buffer cavity is provided with a filter (5).
8. The micro-pressure sensing gas circuit system according to claim 7, wherein: the bottom of the oxygen outlet cavity (4) is provided with a pressure release cavity, and the pressure release cavity is positioned in front of the filter element (5) and is communicated with the oxygen channel (2).
9. A micro-pressure sensing gas circuit system according to claim 1, wherein: the micro-pressure sensor (10) is a differential pressure sensor, the micro-pressure sensor (10) is also provided with an exhaust gas path (9), and the air outlet of the exhaust gas path (9) is communicated with the outside air.
10. An oxygenerator, characterized in that: the micro-pressure induction gas circuit system of any one of claims 1 to 9 is used by the oxygenerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761601.1U CN220853972U (en) | 2023-10-13 | 2023-10-13 | Micro-pressure induction gas circuit system and oxygenerator using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761601.1U CN220853972U (en) | 2023-10-13 | 2023-10-13 | Micro-pressure induction gas circuit system and oxygenerator using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220853972U true CN220853972U (en) | 2024-04-26 |
Family
ID=90745602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322761601.1U Active CN220853972U (en) | 2023-10-13 | 2023-10-13 | Micro-pressure induction gas circuit system and oxygenerator using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220853972U (en) |
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2023
- 2023-10-13 CN CN202322761601.1U patent/CN220853972U/en active Active
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