Double-turbine breathing machine

Abstract

The utility model relates to the technical field of medical equipment, in particular to a double-turbine breathing machine which comprises a first turbofan branch, a second turbofan branch, an inspiration pipeline and an expiration pipeline, the first turbofan branch and the second turbofan branch are communicated on the inspiration pipeline, and the expiration pipeline is communicated with the first turbofan branch and the second turbofan branch. According to the double-turbine breathing machine, the first turbine fan and the second turbine fan are arranged, so that the double-turbine breathing machine can provide an air source for a patient through the first turbine fan and the second turbine fan, and when any one turbine fan breaks down, the air suction pipeline can be driven by the other turbine fan to provide the air source; the situation that when a single turbofan breaks down, an air source cannot be provided, and the life safety of a patient is threatened is avoided, and the safety and reliability of the breathing machine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a dual-turbine ventilator. Background Art

[0002] Existing electric ventilators generally use a turbine blower as the power source of the ventilator. However, in actual applications, if the turbine blower fails, the ventilator cannot provide the patient with an inspiratory air source, and the patient cannot breathe, which will pose a threat to the patient's life safety, making the ventilator less safe and reliable. Summary of the invention

[0003] The embodiment of the utility model provides a dual-turbine ventilator to solve the problem of low safety and reliability of ventilators in the prior art.

[0004] In a first aspect, the utility model provides a dual-turbine ventilator, comprising: a first turbine blower branch, a second turbine blower branch, an inhalation pipeline and an exhalation pipeline; wherein,

[0005] The air inlet end of the air intake pipeline is used to connect to an air source, the air intake pipeline is connected to the first turbo fan branch and the second turbo fan branch, the first turbo fan branch is provided with a first turbo fan and a first check valve, the second turbo fan branch is provided with a second turbo fan and a second check valve, and the first air outlet end of the air intake pipeline is used to provide an air source;

[0006] An exhalation valve is arranged on the exhalation pipeline, the air inlet end of the exhalation pipeline is connected to the second air outlet end of the inhalation pipeline, and the air outlet end of the exhalation pipeline is used for exhaling into the atmosphere.

[0007] In one embodiment, the dual-turbine ventilator further comprises: a high-pressure oxygen pipeline and an air-oxygen mixing chamber;

[0008] A third one-way valve is provided on the high-pressure oxygen pipeline, the air inlet end of the high-pressure oxygen pipeline is used to connect to the oxygen source, and the air outlet end of the high-pressure oxygen pipeline is connected to the oxygen inlet end of the air-oxygen mixing chamber;

[0009] The air intake pipeline is connected to the air-oxygen mixing chamber, and the air outlet end of the air-oxygen mixing chamber is used to provide an intake air source mixed with the air source and the oxygen source through the air intake pipeline.

[0010] In one embodiment, the dual-turbine ventilator further comprises: an oxygen concentration control module disposed on the high-pressure oxygen pipeline and an oxygen concentration sensor disposed on the inhalation pipeline;

[0011] The oxygen concentration control module is used to control the oxygen concentration in the air-oxygen mixing chamber, and the oxygen concentration sensor is used to monitor the oxygen concentration of the inhaled air source after the air source and the oxygen source are mixed.

[0012] In one embodiment, the high-pressure oxygen pipeline is further provided with a gas source inlet pressure sensor and a pressure control module;

[0013] The gas source inlet pressure sensor is used to monitor the pressure value at the air inlet end of the high-pressure oxygen pipeline, and the pressure control module is used to adjust the pressure in the high-pressure oxygen pipeline according to the pressure value at the air inlet end of the high-pressure oxygen pipeline.

[0014] In one embodiment, the high-pressure oxygen branch is further provided with an oxygen source inlet filter;

[0015] The air inlet end of the oxygen source inlet filter is used to connect to the oxygen source, and the air outlet end of the oxygen source inlet filter is connected to the oxygen inlet end of the air-oxygen mixing chamber through the high-pressure oxygen pipeline.

[0016] In one embodiment, the dual-turbine ventilator further comprises: an emergency inhalation circuit and an emergency inhalation valve;

[0017] An emergency air intake valve is arranged on the emergency air intake pipeline, the air inlet end of the emergency air intake pipeline is used to connect to an external environmental air source, and the air outlet end of the emergency air intake pipeline is connected to the emergency air inlet end of the air intake pipeline.

[0018] In one embodiment, an exhalation flow sensor is provided in the inhalation pipeline between the first air outlet end and the second air outlet end;

[0019] The exhalation flow sensor is used to detect the exhalation flow in the inhalation pipeline between the first air outlet end and the second air outlet end.

[0020] In one embodiment, the dual-turbine ventilator further comprises: a temporary air outlet pipeline;

[0021] An exhalation proportional valve is arranged on the temporary air outlet pipeline, the air inlet end of the temporary air outlet pipeline is connected to the third air outlet end of the air inlet pipeline, and the air outlet end of the temporary air outlet pipeline is used for exhaling to the atmosphere.

[0022] In one embodiment, the dual-turbine respirator further comprises: a dust filter and a noise reduction box disposed on the air inhalation pipeline;

[0023] The air inlet end of the noise reduction box is used to be connected to the air source through the dust filter, and the air outlet end of the noise reduction box is used to provide the air source through the air intake pipeline.

[0024] In one embodiment, the dual-turbine ventilator further comprises: a temperature sensor, a flow sensor, a mechanical safety valve, an inhalation check valve, a bypass air resistance and an inhalation end pressure sensor arranged on the inhalation pipeline;

[0025] The temperature sensor is arranged at the air inlet end of the flow sensor, the air inlet end of the flow sensor is used to be connected to the air source through the first turbine blower branch and the second turbine blower branch, the air outlet end of the flow sensor is connected to the air inlet end of the air intake check valve, the mechanical safety valve is arranged at the air inlet end of the air intake check valve, the air outlet end of the air intake check valve is used to provide an air source through the air intake pipeline, the air intake end pressure sensor is arranged at the air outlet end of the air intake pipeline, the first end of the bypass air resistance is connected to the air inlet end of the air intake check valve, and the second end of the bypass air resistance is connected to the air outlet end of the air intake check valve;

[0026] The temperature sensor is used to monitor the temperature of the air inlet end of the flow sensor, the flow sensor is used to monitor the flow of the air source in the air intake pipeline, and the air intake end pressure sensor is used to monitor the pressure value of the air outlet end of the air intake pipeline.

[0027] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0028] The dual-turbine ventilator of the utility model comprises: a first turbine blower branch, a second turbine blower branch, an inhalation duct and an exhalation duct. By connecting the first turbine blower branch and the second turbine blower branch on the inhalation duct, the dual-turbine ventilator can provide an air source for the patient through the first turbine blower and the second turbine blower, and when any turbine blower fails, the inhalation duct can be driven by the other turbine blower to provide an air source, thereby avoiding a threat to the patient's life safety caused by failure of a single turbine blower to provide an air source, thereby improving the safety and reliability of the ventilator. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of a dual-turbine ventilator provided by an embodiment of the utility model;

[0031] Figure 2 This is another structural schematic diagram of a dual-turbine ventilator provided by an embodiment of the utility model;

[0032] Among them, S1, inhalation pipeline, S2, exhalation pipeline, S3, second air outlet, S4, second turbine fan branch, S5, first turbine fan branch, S6, air inlet of inhalation pipeline, S7, first air outlet, S8, air outlet of exhalation pipeline, S9, high-pressure oxygen pipeline, S10, oxygen concentration control module, S11, pressure control module, S12, emergency inhalation pipeline, S13, exhalation flow sensor, S14, temporary air outlet, S15, emergency air inlet, S16, third air outlet of inhalation pipeline, 2, oxygen gas source inlet filter, 3, gas source inlet pressure sensor, 4, pressure relief valve, 5, fourth one-way valve, 6, pressure reducing valve, 7 , proportional valve, 8, flow stabilizer, 9, flow sensor, 10, dust filter, 11, temperature sensor, 12, noise reduction box, 14, air-oxygen mixing chamber, 16, flow sensor, 17, emergency suction valve, 18, oxygen concentration sensor, 19, mechanical safety valve, 20, third one-way valve, 22, suction end pressure sensor, 23, flow sensor, 24, exhalation proportional valve, 25, exhalation valve, 26, rear end pressure sensor, 27, front end pressure sensor, 31, second turbo fan, 32, first turbo fan, 51, second one-way valve, 52, first one-way valve, 59, suction one-way valve, 54, first zeroing valve, 55, second zeroing valve. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In order to thoroughly understand the present invention, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0037] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure belongs. It will be further understood that the terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0038] In one embodiment, if Figure 1 As shown, a schematic diagram of the structure of a dual-turbine ventilator is provided, including: a first turbine blower branch S5, a second turbine blower branch S4, an inhalation pipeline S1 and an exhalation pipeline S2; wherein:

[0039] The air inlet end S6 of the air intake pipeline S1 is used to connect to an air source. The air intake pipeline S1 is connected to a first turbo fan branch S5 and a second turbo fan branch S4. The first turbo fan branch S5 is provided with a first turbo fan 32 and a first check valve 52. The second turbo fan branch S4 is provided with a second turbo fan 31 and a second check valve 51. The first air outlet end S7 of the air intake pipeline S1 is used to provide an air source.

[0040] An exhalation valve 25 is provided on the exhalation pipeline S2. The air inlet end of the exhalation pipeline S2 is connected to the second air outlet end S3 of the inhalation pipeline S1. The air outlet end S8 of the exhalation pipeline S2 is used for exhaling into the atmosphere.

[0041] The working process of the above-mentioned dual-turbine ventilator is as follows: when inhaling, the first turbine blower 32 is started and the first one-way valve 52 in the first turbine blower branch S5 is turned on, and / or the second turbine blower 31 is started and the second one-way valve 51 in the second turbine blower branch S4 is turned on, so as to provide an air source for the user through the first air outlet end S7 of the inhalation pipeline S1; when exhaling, the exhalation valve 25 is turned on, and the user exhales into the atmosphere through the inhalation pipeline S1 and the exhalation pipeline S2 in turn.

[0042] In actual applications, when any of the turbine blowers in the first turbine blower branch S5 and the second turbine blower branch S4 fails and cannot work, the intake pipe S1 can provide the user with an air source through another turbine blower. No specific limitation is made here, and it depends on the specific application environment, which is within the protection scope of this application.

[0043] The dual-turbine ventilator of this embodiment includes: a first turbine blower branch S5, a second turbine blower branch S4, an inhalation duct S1 and an exhalation duct S2. By connecting the first turbine blower branch S5 and the second turbine blower branch S4 on the inhalation duct S1, the dual-turbine ventilator can provide an air source for the patient through the first turbine blower 32 and the second turbine blower 31, and when any turbine blower fails, the inhalation duct S1 can be driven by the other turbine blower to provide an air source, thereby avoiding a threat to the patient's life safety caused by the inability to provide an air source when a single turbine blower fails, thereby improving the safety and reliability of the ventilator.

[0044] In one embodiment, if Figure 2 As shown, a schematic diagram of the structure of a dual-turbine ventilator is provided. Figure 1 Based on the structural schematic diagram of the dual-turbine respirator shown in FIG. 1 , the dual-turbine respirator further includes: a high-pressure oxygen pipeline S9 and an air-oxygen mixing chamber 14; wherein:

[0045] A third one-way valve 20 is provided on the high-pressure oxygen pipeline S9, the air inlet end of the high-pressure oxygen pipeline S9 is used to connect to the oxygen source, and the air outlet end of the high-pressure oxygen pipeline S9 is connected to the oxygen air inlet end of the air-oxygen mixing chamber 14;

[0046] The air intake pipeline S1 is connected to the air-oxygen mixing chamber 14, and the air outlet end of the air-oxygen mixing chamber 14 is used to provide an air intake source mixed with an air source and an oxygen source through the air intake pipeline S1.

[0047] In practical applications, such as Figure 2 As shown, a noise reduction box can be used as the air-oxygen mixing chamber 14 to mix the air source and the oxygen source while achieving noise reduction. The actual application is not limited to this and depends on the specific application environment, which is within the protection scope of this application.

[0048] The working process of the above-mentioned dual-turbine respirator is as follows: when the dual-turbine respirator is working, the third one-way valve 20 is turned on, and the high-pressure oxygen pipeline S9 provides an oxygen source to the air-oxygen mixing chamber 14 through the third one-way valve 20; at the same time, the air-oxygen mixing chamber 14 obtains an air source through the inhalation pipeline S1, and after mixing the oxygen source and the air source, provides the mixed inhalation source to the user through the inhalation pipeline S1.

[0049] The dual-turbine respirator of this embodiment adopts a high-pressure oxygen pipeline S9 to provide an oxygen source for the air-oxygen mixing chamber 14, so as to mix the oxygen source and the air source through the air-oxygen mixing chamber 14, and then provide the user with a mixed inhalation source, so that the dual-turbine respirator can provide the user with an inhalation source with a certain oxygen concentration while providing the user with an air source.

[0050] In one embodiment, if Figure 2 As shown, a schematic diagram of the structure of a dual-turbine ventilator is provided. Figure 1 On the basis of the dual-turbine ventilator shown, the dual-turbine ventilator further includes: an oxygen concentration control module S10 arranged on the high-pressure oxygen pipeline S9 and an oxygen concentration sensor 18 arranged on the inhalation pipeline S1; wherein:

[0051] The oxygen concentration control module S10 is used to control the oxygen concentration in the air-oxygen mixing chamber 14, and the oxygen concentration sensor 18 is used to monitor the oxygen concentration of the inhaled air source after the air source and the oxygen source are mixed.

[0052] Specifically, Figure 2 As shown, the oxygen concentration sensor 18 is arranged between the outlet end of the air-oxygen mixing chamber 14 and the first outlet end S7 of the air intake pipe S1; optionally, the oxygen concentration control module S10 includes: a proportional valve 7, a flow stabilizer 8 and a flow sensor 9; wherein, the inlet end of the proportional valve 7 is used to connect to the oxygen source, the outlet end of the proportional valve 7 is connected to the inlet end of the flow stabilizer 8, the outlet end of the flow stabilizer 8 is connected to the inlet end of the flow sensor 9, the outlet end of the flow sensor 9 is connected to the inlet end of the third one-way valve 20, and the outlet end of the third one-way valve 20 is connected to the oxygen inlet end of the air-oxygen mixing chamber 14. In actual applications, it is not limited to this, and it can be determined according to its specific application environment, which is within the protection scope of this application.

[0053] The working process of the above-mentioned twin-turbine respirator is as follows: when the twin-turbine respirator is working, the oxygen concentration sensor 18 monitors the oxygen concentration on the inhalation pipeline S1. When the oxygen concentration on the inhalation pipeline S1 is not within the preset range, the oxygen concentration in the air-oxygen mixing chamber 14 is adjusted by the oxygen concentration control module S10 so that the oxygen concentration on the inhalation pipeline S1 meets the user's requirements and is within the preset range.

[0054] Specifically, Figure 2As shown, the proportion of oxygen input into the air-oxygen mixing chamber 14 can be adjusted by controlling the proportional valve according to actual needs, or the oxygen source can be stabilized by a flow stabilizer, and then the oxygen flow rate at the oxygen inlet end of the air-oxygen mixing chamber 14 can be adjusted by the flow sensor 23 to change the oxygen concentration in the air-oxygen mixing chamber 14, thereby making the oxygen concentration between the air outlet end of the air-oxygen mixing chamber 14 and the first air outlet end S7 of the air intake pipeline S1 meet the user's requirements. In actual applications, it is not limited to this, and it can be determined according to the specific application environment, all of which are within the protection scope of this application.

[0055] The dual-turbine respirator of this embodiment uses an oxygen concentration sensor 18 to monitor the oxygen concentration of the inhalation gas source after the air source and the oxygen source are mixed. When the oxygen concentration of the inhalation gas source is not within a preset range, the oxygen concentration in the air-oxygen mixing chamber 14 is adjusted through the oxygen concentration control module S10, so that the oxygen concentration on the inhalation pipeline S1 can be within the preset range to meet the user's usage requirements.

[0056] In one embodiment, if Figure 2 As shown, the high-pressure oxygen pipeline S9 is also provided with a gas source inlet pressure sensor 3 and a pressure control module S11; wherein:

[0057] The gas source inlet pressure sensor 3 is used to monitor the pressure value at the air inlet end of the high-pressure oxygen pipeline S9, and the pressure control module S11 is used to adjust the pressure in the high-pressure oxygen pipeline S9 according to the pressure value at the air inlet end of the high-pressure oxygen pipeline S9.

[0058] Specifically, Figure 2 As shown, the gas source inlet pressure sensor 3 is arranged at the air inlet end of the high-pressure oxygen pipeline S9; optionally, its pressure control module S11 includes: a pressure relief valve 4, a fourth one-way valve 5 and a pressure reducing valve 6; wherein, the pressure relief valve 4 is arranged at the air inlet end of the fourth one-way valve 5, the air inlet end of the fourth one-way valve 5 is used to connect the oxygen gas source, the air outlet end of the fourth one-way valve 5 is connected to the air inlet end of the pressure reducing valve 6, and the air outlet end of the pressure reducing valve 6 is connected to the air inlet end of the proportional valve. In actual applications, it is not limited to this, and it can be determined according to its specific application environment, which is within the protection scope of this application.

[0059] The working process of the above-mentioned dual-turbine respirator is as follows: when the dual-turbine respirator is working, the gas source inlet pressure sensor 3 monitors the pressure value at the inlet of the high-pressure oxygen pipeline S9. When the pressure value at the inlet of the high-pressure oxygen pipeline S9 is not within the preset range, the pressure value at the inlet of the high-pressure oxygen pipeline S9 is adjusted through the pressure control module S11 to make the pressure value at the inlet of the high-pressure oxygen pipeline S9 within the preset range.

[0060] Specifically, Figure 2As shown, the pressure value at the inlet of the high-pressure oxygen pipeline S9 can be adjusted by automatically unloading the pressure through the pressure relief valve 4, or by actively reducing pressure or pressurizing the pressure through the pressure reducing valve 6, and the fourth one-way valve 5 is used to prevent the oxygen source in the high-pressure oxygen pipeline S9 from flowing back. Specifically, when the pressure value at the inlet of the high-pressure oxygen pipeline S9 of the pressure relief valve 4 exceeds 0.68MPa, the pressure relief valve 4 will automatically unload the pressure, and the high-pressure oxygen pipeline S9 can output the pressure value of the oxygen source to the proportional valve when it is reduced to the range of 0.23-0.28MPa through the pressure reducing valve 6, so as to avoid the pressure value of the oxygen source from being too high and causing damage to the subsequent equipment. In actual applications, it is not limited to this, and it can be determined according to the specific application environment, which is within the protection scope of this application.

[0061] The twin-turbine respirator of this embodiment uses an air source inlet pressure sensor 3 to monitor the pressure value of the air inlet end of the high-pressure oxygen pipeline S9. When the pressure value of the air inlet end of the high-pressure oxygen pipeline S9 is not within a preset range, the pressure value of the air inlet end of the high-pressure oxygen pipeline S9 is adjusted through the pressure control module S11, thereby avoiding damage to the high-pressure oxygen pipeline S9 due to excessive pressure, thereby improving the safety and reliability of the twin-turbine respirator.

[0062] In one embodiment, if Figure 2 As shown, an oxygen source inlet filter 2 is also provided on the high-pressure oxygen branch; wherein, the air inlet end of the oxygen source inlet filter 2 is used to connect to the oxygen source, and the air outlet end of the oxygen source inlet filter 2 is connected to the oxygen inlet end of the air-oxygen mixing chamber 14 through the high-pressure oxygen pipeline S9.

[0063] The working process of the above-mentioned dual-turbine respirator is as follows: when the dual-turbine respirator is working, the oxygen source is filtered through the oxygen source inlet filter 2, and then the filtered oxygen source is provided to the air-oxygen mixing chamber 14 through the high-pressure oxygen pipeline S9.

[0064] The twin-turbine respirator of this embodiment uses an oxygen source inlet filter 2 to filter the oxygen source, and then provides the filtered oxygen source to the air-oxygen mixing chamber 14 through the high-pressure oxygen pipeline S9, so as to prevent impurities and dust in the oxygen source from damaging the equipment on the high-pressure oxygen pipeline S9, thereby improving the safety and reliability of the twin-turbine respirator.

[0065] In one embodiment, if Figure 2 As shown, the dual-turbine ventilator also includes: an emergency inhalation pipeline S12 and an emergency inhalation valve 17; wherein:

[0066] An emergency air intake valve 17 is provided on the emergency air intake pipeline S12. The air inlet end S6 of the emergency air intake pipeline S12 is used to connect to the external environmental air source, and the air outlet end S7 of the emergency air intake pipeline S12 is connected to the emergency air inlet end S15 of the air intake pipeline S1.

[0067] The working process of the above-mentioned dual-turbine respirator is as follows: when the dual-turbine respirator is working, if the inhalation pipeline S1 fails and cannot provide air source for the user, the emergency inhalation valve 17 can be controlled to be turned on to provide the user with an external environment air source through the emergency inhalation pipeline S12.

[0068] The twin-turbine respirator of this embodiment adopts an emergency inhalation pipeline S12 connected to the emergency air inlet end S15 of the inhalation pipeline S1, so that when the inhalation pipeline S1 fails, the emergency inhalation pipeline S12 can provide the user with an external environmental air source, thereby avoiding the user being unable to breathe when the inhalation pipeline S1 fails, posing a threat to the user's life safety, thereby improving the safety and reliability of the twin-turbine respirator.

[0069] In one embodiment, if Figure 2 As shown, an exhalation flow sensor S13 is provided in the inhalation pipeline S1 between the first outlet end S7 and the second outlet end S3; wherein the exhalation flow sensor S13 is used to detect the exhalation flow in the inhalation pipeline S1 between the first outlet end S7 and the second outlet end S3.

[0070] Optional, such as Figure 2 As shown, the exhalation flow sensor S13 includes: a flow sensor 23, a first zeroing valve 54, a second zeroing valve 55, a rear pressure sensor 26 and a front pressure sensor 27; wherein, the air inlet end of the flow sensor 23 is used to connect to the exhalation gas source, and the air outlet end of the flow sensor 23 is used to connect to the air inlet end of the exhalation pipeline S2; the rear pressure sensor 26 is used to collect the pressure value of the air outlet end of the flow sensor 23, and the front pressure sensor 27 is used to collect the pressure value of the air inlet end of the flow sensor 23; the first zeroing valve 54 is used to zero the rear pressure sensor 26; the second zeroing valve 55 is used to zero the front pressure sensor 27. In actual applications, it is not limited to this, and it can be determined according to its specific application environment, which is within the protection scope of this application.

[0071] The working process of the above-mentioned twin-turbine ventilator is as follows: when the twin-turbine ventilator is working, the exhalation flow in the inhalation circuit S1 is monitored by the exhalation flow sensor S13, so that when the exhalation flow is detected, the exhalation valve 25 on the exhalation circuit S2 can be controlled to open.

[0072] In practical applications, the exhalation flow sensor S13 can calculate the exhalation flow in the inhalation pipeline S1 between the first outlet S7 and the second outlet S3 through the pressure values ​​collected by the rear pressure sensor and the front pressure sensor. The practical application is not limited to this, and it can be determined according to the specific application environment, which is within the protection scope of this application.

[0073] The dual-turbine respirator of this embodiment monitors the exhalation flow in the inhalation circuit S1 between the first outlet port S7 and the second outlet port S3 by using an exhalation flow sensor S13, so that when the exhalation flow is detected, the exhalation valve 25 on the exhalation circuit S2 can be controlled to open, and the user can exhale through the exhalation circuit S2.

[0074] In one embodiment, if Figure 2 As shown, a schematic diagram of the structure of a dual-turbine ventilator is provided. Figure 1 Based on the structural schematic diagram of the dual-turbine ventilator shown in FIG. 1 , the dual-turbine ventilator further includes: a temporary air outlet pipeline S14; wherein:

[0075] An exhalation proportional valve 24 is provided on the temporary air outlet pipeline S14 , the air inlet end of the temporary air outlet pipeline S14 is connected to the third air outlet end S16 of the air inlet pipeline S1 , and the air outlet end of the temporary air outlet pipeline S14 is used to exhale to the atmosphere through the exhalation valve 25 .

[0076] The working process of the above-mentioned dual-turbine ventilator is: when the user exhales, the inhalation pipeline S1 still provides the user with an air source. At this time, the exhalation proportional valve 24 can be controlled to be turned on, and then the air source in the inhalation pipeline S1 is discharged to the atmosphere through the third outlet end S16 of the inhalation pipeline S1 and the temporary outlet pipeline S14 in turn.

[0077] The dual-turbine respirator of this embodiment sets the exhalation proportional valve 24 on the temporary air outlet pipe S14 so that when the user exhales, the air source in the inhalation pipe S1 can be discharged to the atmosphere, thereby avoiding the situation where the inhalation pipe S1 continuously supplies air and causes the user to be unable to exhale.

[0078] In one embodiment, optionally, Figure 2 As shown, the dual-turbine respirator also includes: a dust filter 10 and a noise reduction box 12 arranged on the intake pipe S1; wherein the air inlet end of the noise reduction box 12 is used to connect to the air source through the dust filter 10, and the air outlet end of the noise reduction box 12 is used to provide the air source through the intake pipe S1.

[0079] The working process of the above-mentioned dual-turbine respirator is as follows: the air source is filtered by the dust filter 10 and then input into the noise reduction box 12 for noise reduction, and then the filtered and noise-reduced air source is provided to the user through the air intake pipeline S1.

[0080] The twin-turbine respirator of this embodiment uses a dust-proof filter 10 to filter the air source input into the intake pipeline S1 and then outputs it to the noise reduction box 12 for noise reduction, so as to reduce the noise in the twin-turbine respirator. At the same time, the dust and bacteria in the air source are filtered by the dust-proof filter 10 to avoid the dust in the air source from affecting the use of the subsequent equipment and the bacteria from affecting the health of the user, thereby improving the safety and reliability of the twin-turbine respirator.

[0081] In one embodiment, optionally, Figure 2 As shown, the dual-turbine ventilator further includes: a temperature sensor 11, a flow sensor 16, a mechanical safety valve 19, an inhalation check valve 59 and an inhalation end pressure sensor 22 arranged on the inhalation pipeline S1; wherein:

[0082] The temperature sensor 11 is arranged at the air inlet end of the flow sensor 16, and the air inlet end of the flow sensor 16 is used to connect the air source through the first turbine fan branch S5 and the second turbine fan branch S4, and the air outlet end of the flow sensor 16 is connected to the air inlet end of the air intake check valve 59, and the mechanical safety valve 19 is arranged at the air inlet end of the air intake check valve 59, and the air outlet end of the air intake check valve 59 is used to provide the air source through the air intake pipeline S1, and the air intake end pressure sensor 22 is arranged at the air outlet end S7 of the air intake pipeline S1, and the first end of the bypass air resistance 52 is connected to the air inlet end of the air intake check valve 59, and the second end of the bypass air resistance 52 is connected to the air outlet end of the air intake check valve 59;

[0083] The temperature sensor 11 is used to monitor the temperature of the air inlet end of the flow sensor 16, the flow sensor 16 is used to monitor the flow of the air source in the air intake pipe S1, and the air intake end pressure sensor 22 is used to monitor the pressure value of the air outlet end of the air intake pipe S1.

[0084] In practical applications, when the pressure value in the inhalation line S1 is within 90-100 kPa, the mechanical safety valve 19 will automatically release the pressure to avoid excessive pressure in the inhalation line S1 causing harm to the patient; at the same time, the external device can monitor the temperature of the inlet end of the monitoring flow sensor 16 through the temperature sensor 11 to control the dual-turbine ventilator to stop working when the temperature is too high to avoid excessive temperature causing harm to the user; optionally, the detection end of the inhalation end pressure sensor 22 is provided with a third zeroing valve 53, so that the inhalation end pressure sensor 22 can be zeroed through the third zeroing valve 53. In practical applications, it is not limited to this, and it can be determined according to the specific application environment, which is within the protection scope of this application.

[0085] The working process of the above-mentioned dual-turbine ventilator is as follows: the air source output by the first turbine blower branch S5 and the second turbine blower branch S4 flows into the inhalation check valve 59 through the flow sensor 16 to provide the air source for the user.

[0086] In actual applications, the bypass air resistance 52 is used to balance the pressure before and after the inhalation check valve 59; the inhalation check valve 59 is closed during exhalation, and is opened during inhalation. The external device can monitor the temperature of the air inlet end of the flow sensor 16 through the temperature sensor 11, and can also monitor the flow rate of the air source in the inhalation pipeline S1 through the flow sensor 16, and can monitor the pressure value of the outlet end of the inhalation pipeline S1 through the inhalation end pressure sensor 22. In actual applications, it is not limited to this, and it depends on the specific application environment, which is within the protection scope of this application.

[0087] The dual-turbine respirator in this embodiment is equipped with a temperature sensor 11, a flow sensor 16 and an inhalation end pressure sensor 22 on the inhalation pipeline S1, so that the external device can monitor the temperature of the air inlet end of the flow sensor 16 through the temperature sensor 11, and can also monitor the flow of the air source in the inhalation pipeline S1 through the flow sensor 16, and can monitor the pressure value of the air outlet end of the inhalation pipeline S1 through the inhalation end pressure sensor 22; at the same time, the inhalation one-way valve 59 is adopted to prevent the user from exhaling from the inhalation pipeline S1, thereby preventing the gas exhaled by the user from mixing with the air source in the inhalation pipeline S1; and the mechanical safety valve 19 is adopted to automatically relieve the pressure when the pressure in the inhalation pipeline S1 is too high, so as to prevent the inhalation pipeline S1 from being damaged by excessive pressure, thereby improving the safety and reliability of the dual-turbine respirator.

[0088] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A dual-turbine ventilator, characterized in that: include: A first turbine blower branch, a second turbine blower branch, an inhalation line and an exhalation line; wherein, The air inlet end of the air intake pipeline is used to connect to an air source, the air intake pipeline is connected to the first turbo fan branch and the second turbo fan branch, the first turbo fan branch is provided with a first turbo fan and a first check valve, the second turbo fan branch is provided with a second turbo fan and a second check valve, and the first air outlet end of the air intake pipeline is used to provide an air source; An exhalation valve is arranged on the exhalation pipeline, the air inlet end of the exhalation pipeline is connected to the second air outlet end of the inhalation pipeline, and the air outlet end of the exhalation pipeline is used for exhaling into the atmosphere.

2. The dual-turbine ventilator according to claim 1, characterized in that: The dual-turbine ventilator also includes: a high-pressure oxygen pipeline and an air-oxygen mixing chamber; A third one-way valve is provided on the high-pressure oxygen pipeline, the air inlet end of the high-pressure oxygen pipeline is used to connect to the oxygen source, and the air outlet end of the high-pressure oxygen pipeline is connected to the oxygen inlet end of the air-oxygen mixing chamber; The air intake pipeline is connected to the air-oxygen mixing chamber, and the air outlet end of the air-oxygen mixing chamber is used to provide an intake air source mixed with the air source and the oxygen source through the air intake pipeline.

3. The dual-turbine ventilator according to claim 2, characterized in that: The dual-turbine respirator further comprises: an oxygen concentration control module arranged on the high-pressure oxygen pipeline and an oxygen concentration sensor arranged on the inhalation pipeline; The oxygen concentration control module is used to control the oxygen concentration in the air-oxygen mixing chamber, and the oxygen concentration sensor is used to monitor the oxygen concentration of the inhaled air source after the air source and the oxygen source are mixed.

4. The dual-turbine ventilator according to claim 2, characterized in that: The high-pressure oxygen pipeline is also provided with a gas source inlet pressure sensor and a pressure control module; The gas source inlet pressure sensor is used to monitor the pressure value at the air inlet end of the high-pressure oxygen pipeline, and the pressure control module is used to adjust the pressure in the high-pressure oxygen pipeline according to the pressure value at the air inlet end of the high-pressure oxygen pipeline.

5. The dual-turbine ventilator according to claim 4, characterized in that: The high-pressure oxygen branch is also provided with an oxygen source inlet filter; The air inlet end of the oxygen source inlet filter is used to connect to the oxygen source, and the air outlet end of the oxygen source inlet filter is connected to the oxygen inlet end of the air-oxygen mixing chamber through the high-pressure oxygen pipeline.

6. The dual-turbine ventilator according to claim 1, characterized in that: The dual-turbine ventilator also includes: an emergency inhalation pipeline and an emergency inhalation valve; An emergency air intake valve is arranged on the emergency air intake pipeline, the air inlet end of the emergency air intake pipeline is used to connect to an external environmental air source, and the air outlet end of the emergency air intake pipeline is connected to the emergency air inlet end of the air intake pipeline.

7. The dual-turbine ventilator according to claim 1, characterized in that: An exhalation flow sensor is provided on the inhalation pipeline between the first air outlet end and the second air outlet end; The exhalation flow sensor is used to detect the exhalation flow in the inhalation pipeline between the first air outlet end and the second air outlet end.

8. The dual-turbine ventilator according to claim 1, characterized in that: The dual-turbine ventilator also includes: a temporary air outlet pipeline; An exhalation proportional valve is arranged on the temporary air outlet pipeline, the air inlet end of the temporary air outlet pipeline is connected to the third air outlet end of the air inlet pipeline, and the air outlet end of the temporary air outlet pipeline is used for exhaling to the atmosphere.

9. The dual-turbine ventilator according to claim 1, characterized in that: The dual-turbine respirator further comprises: a dust filter and a noise reduction box arranged on the air intake pipeline; The air inlet end of the noise reduction box is used to be connected to the air source through the dust filter, and the air outlet end of the noise reduction box is used to provide the air source through the air intake pipeline.

10. The dual-turbine ventilator according to claim 1, characterized in that: The dual-turbine respirator further comprises: a temperature sensor, a flow sensor, a mechanical safety valve, an inhalation check valve, a bypass air resistance and an inhalation end pressure sensor arranged on the inhalation pipeline; The temperature sensor is arranged at the air inlet end of the flow sensor, the air inlet end of the flow sensor is used to be connected to the air source through the first turbine blower branch and the second turbine blower branch, the air outlet end of the flow sensor is connected to the air inlet end of the air intake check valve, the mechanical safety valve is arranged at the air inlet end of the air intake check valve, the air outlet end of the air intake check valve is used to provide an air source through the air intake pipeline, the air intake end pressure sensor is arranged at the air outlet end of the air intake pipeline, the first end of the bypass air resistance is connected to the air inlet end of the air intake check valve, and the second end of the bypass air resistance is connected to the air outlet end of the air intake check valve; The temperature sensor is used to monitor the temperature of the air inlet end of the flow sensor, the flow sensor is used to monitor the flow of the air source in the air intake pipeline, and the air intake end pressure sensor is used to monitor the pressure value of the air outlet end of the air intake pipeline.

Images