CN115111151A - Air compressor and control method thereof - Google Patents

Air compressor and control method thereof Download PDF

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Publication number
CN115111151A
CN115111151A CN202210761216.4A CN202210761216A CN115111151A CN 115111151 A CN115111151 A CN 115111151A CN 202210761216 A CN202210761216 A CN 202210761216A CN 115111151 A CN115111151 A CN 115111151A
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CN
China
Prior art keywords
air
channel
inlet end
outlet end
air outlet
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Pending
Application number
CN202210761216.4A
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Chinese (zh)
Inventor
王乐鑫
张学锋
李清林
代中燕
王金龙
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Xace Turbo Technologies Beijing Co ltd
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Xace Turbo Technologies Beijing Co ltd
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Priority to CN202210761216.4A priority Critical patent/CN115111151A/en
Publication of CN115111151A publication Critical patent/CN115111151A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses an air compressor and a control method thereof, the air compressor comprises a shell, a compression assembly and an adjusting assembly, wherein the shell is provided with an air inlet end, an air outlet end and a first cavity, two ends of the first cavity are respectively communicated with the air inlet end and the air outlet end, the compression assembly is arranged in the first cavity, part of the compression assembly extends into the air inlet end so as to compress air in the air inlet end, the outer peripheral surface of the compression assembly and the inner peripheral surface of the first cavity are arranged at intervals to form an airflow channel so that compressed air flows into the air outlet end through the airflow channel, the adjusting assembly is communicated with at least one of the air outlet end and the airflow channel, and the adjusting assembly is used for discharging part of the compressed air so as to adjust the flow rate and the pressure ratio of the compressed air at the air outlet end. The air compressor has the advantages of simple structure, convenience in adjustment, low cost and the like.

Description

Air compressor and control method thereof
Technical Field
The invention relates to the technical field of air compressor manufacturing, in particular to an air compressor and a control method thereof.
Background
An air compressor, called an air compressor for short, is a mechanical device for compressing gas, converts mechanical energy input by a motor or a fuel engine into gas pressure to provide gas source power, and is a core device of a pneumatic system.
In the correlation technique, the air current of the air-out end of air compressor machine is adjusted inconveniently, and life is low.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
in the related technology, the blower of the medical respirator needs to rapidly and accurately adjust the rotating speed along with the breathing and the inhalation of the patient, and outputs air or oxygen with corresponding parameters for the pressure and the flow which are instantaneously needed by the lung of the patient. However, the rapid acceleration and the rapid deceleration have the requirements of high frequency, high responsiveness and high accuracy on bearings, motors and controllers of the fan, and the alternating working condition provides high challenges on the reliability and the service life of the high-speed bearings, the output power and the heat dissipation of the motors and the high frequency and the responsiveness of the controllers.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an embodiment of the present invention proposes one.
The air compressor of the embodiment of the invention comprises: the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet end, an air outlet end and a first cavity, and two ends of the first cavity are respectively communicated with the air inlet end and the air outlet end; the compression assembly is arranged in the first cavity, part of the compression assembly extends into the air inlet end so as to compress air in the air inlet end, and the outer peripheral surface of the compression assembly and the inner peripheral surface of the first cavity are arranged at intervals so as to form an airflow channel so that the compressed air flows into the air outlet end through the airflow channel; the adjusting assembly is communicated with at least one of the air outlet end and the airflow channel and is used for discharging part of compressed air so as to adjust the flow rate and the pressure ratio of the compressed air at the air outlet end.
According to the air compressor provided by the embodiment of the invention, the adjusting component is arranged, so that the gas state parameters of the air outlet end of the air compressor are dynamically adjusted, the circulating air requirements of customers with different breathing characteristics are met, the responsiveness requirements of the air compressor on the motor and the controller are reduced, the loss and system noise of the motor and the controller under variable working conditions are reduced, the service life of the air compressor is prolonged, and the personalized use experience of the breathing machine is further provided.
In some embodiments, the regulating assembly is in communication with the intake end such that compressed gas discharged through the regulating assembly flows into the intake end.
In some embodiments, the housing further has a first channel, two ends of the first channel are respectively communicated with the airflow channel and the air inlet end, so that the compressed air in the airflow channel flows into the air inlet end through the first channel, and the adjusting component is arranged in the first channel.
In some embodiments, the casing further has a second channel, two ends of the second channel are respectively communicated with the air inlet end and the air outlet end, two ends of the second channel are respectively communicated with the air outlet end and the air inlet end, so that compressed air in the air outlet end flows into the air inlet end through the second channel, and the adjusting assembly is disposed in the second channel.
In some embodiments, the air compressor further comprises: the first impeller is rotatably arranged at the air inlet end; the motor is arranged in the first cavity, the outer peripheral surface of the motor and the inner peripheral surface of the shell are arranged at intervals to form the airflow channel, and the motor is connected with the first impeller so as to drive the first impeller to rotate.
In some embodiments, the adjusting assembly is communicated with the air inlet end and is positioned on one side of the first impeller far away from the motor.
In some embodiments, the air compressor further comprises: a scroll casing including a second chamber communicating with the airflow path, a first flow passage communicating with the second chamber and surrounding an outer circumferential side of the second chamber, and a second flow passage communicating with the second chamber and surrounding an outer circumferential side of the second chamber, the outlet being formed on the first flow passage; the second impeller and the turbine are both rotatably arranged in the volute, the second impeller is connected with the turbine so that the turbine can drive the second impeller to rotate, the second impeller and the first flow channel are oppositely arranged at intervals in the inner and outer directions so that high-pressure gas is discharged through the first flow channel after being pressurized by the second impeller, and the turbine and the second flow channel are arranged at intervals in the inner and outer directions so that the turbine is driven to rotate by the gas in the second flow channel.
In some embodiments, the modulation assembly is in communication with the second flow passage such that compressed gas flows into the second flow passage to drive the turbine to rotate.
In some embodiments, the adjusting assembly is a plurality of adjusting assemblies, the adjusting assemblies are arranged at intervals along the circumferential direction of the shell, at least one part of the adjusting assemblies is communicated with the airflow channel, and at least another part of the adjusting assemblies is communicated with the air outlet end.
The control method of the air compressor provided by the embodiment of the invention is the air compressor in any one of the preceding claims, and comprises the following steps: discharging part of compressed gas from at least one of the air outlet end and the airflow channel by using the adjusting assembly so as to enable the flow rate and the pressure ratio of the compressed gas at the air outlet end to reach preset values respectively; and controlling the adjusting assembly to adjust the flow and pressure ratio of the compressed gas flowing out of the adjusting assembly according to the actual parameters of the patient fed back by the respirator so as to adjust the flow and pressure ratio of the compressed gas at the air outlet end.
Drawings
Fig. 1 is a schematic structural view of an air compressor according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of an air compressor according to a second embodiment of the present invention.
Fig. 3 is a schematic structural view of an air compressor according to a third embodiment of the present invention.
Reference numerals:
an air compressor 100;
a housing 1; an air inlet end 11; an air outlet end 12; a first chamber 13; an air flow passage 131; a first channel 14; a second channel 15; a volute 16; a second chamber 161; a first flow passage 162; a second flow passage 163;
a compression assembly 2; a first impeller 21; a motor 22;
an adjustment assembly 3; a valve 31; a valve controller 32;
a second impeller 4; a turbine 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An air compressor according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, an air compressor according to an embodiment of the present invention includes a housing 1, a compressing assembly 2, and an adjusting assembly 3.
The casing 1 has air inlet end 11, air-out end 12 and first chamber 13, and the both ends in first chamber 13 communicate with air inlet end 11 and air-out end 12 respectively. Specifically, as shown in fig. 1 to 3, the air inlet end 11 is located on the right side of the first cavity 13, the air outlet end 12 is located on the left side of the first cavity 13, the right end of the first cavity 13 is connected to the air inlet end 11, and the left end of the first cavity 13 is connected to the air outlet end 12, so that the compressed air at the air inlet end 11 flows into the air outlet end 12 through the first cavity 13.
The compression assembly 2 is arranged in the first cavity 13 and a part of the compression assembly 2 extends into the air inlet end 11 to compress air in the air inlet end 11, and the outer circumferential surface of the compression assembly 2 and the inner circumferential surface of the first cavity 13 are arranged at intervals to form an air flow channel 131, so that the compressed air flows into the air outlet end 12 through the air flow channel 131.
The adjusting component 3 is communicated with at least one of the wind outlet end 12 and the air flow passage 131, and the adjusting component 3 is used for discharging part of the compressed air so as to adjust the flow rate and the pressure ratio of the compressed air at the wind outlet end 12. Specifically, as shown in fig. 1 to 3, the inlet of the adjusting assembly 3 is communicated with at least one of the air outlet end 12 and the air flow passage 13, and part of the compressed air in the casing 1 is discharged through the adjusting assembly 3, so as to adjust the flow rate and the pressure ratio of the compressed air at the air outlet end 12.
According to the air compressor 100 provided by the embodiment of the invention, the adjusting component 3 is arranged, so that after the rotating speed of the air compressor 100 reaches a constant rotating speed after being started, a part of compressed air in the shell 1 is discharged out of the air compressor 100 through the adjusting component 3 by controlling the adjusting component 3, the loss of a bearing, a motor 22 and a controller under the condition of variable work control operation is reduced, the requirements on the frequency, the responsiveness and the accuracy of the bearing, the motor 22 and the controller are reduced, and the service life of the air compressor 100 is prolonged.
In some embodiments, the adjustment assembly 3 is in communication with the intake end 11 such that the airflow discharged through the adjustment assembly 3 flows into the intake end 11. Specifically, as shown in fig. 1-2, the outlet of the adjusting assembly 3 is communicated with the air inlet end 11, so that part of the compressed air flowing out of the casing 1 flows into the air inlet end 11, the compressed air is supplemented to the air compressor 100, and the working efficiency of the air compressor 100 is improved.
In some embodiments, the housing 1 further has a first channel 14, two ends of the first channel 14 are respectively communicated with the airflow channel 13 and the air inlet end 11, so that the compressed air in the airflow channel 13 flows into the air inlet end 11 through the first channel 14, and the adjusting component 3 is arranged in the first channel 14. Specifically, as shown in fig. 2, a first channel 14 is provided in the housing 1, a left end of the first channel 14 is communicated with the airflow channel 13, a right end of the first airflow channel 13 is communicated with the air inlet end 11, and the adjusting component 3 is provided in the first channel 14, so that the adjusting component 3 is arranged to control the flow rate and the pressure ratio of the compressed air flowing out of the first channel 14, and thus the flow rate and the pressure ratio of the compressed air flowing out of the air outlet end 12.
In some embodiments, the housing 1 further has a second channel 15, two ends of the second channel 15 are respectively communicated with the air inlet end 11 and the air outlet end 12, two ends of the second channel 15 are respectively communicated with the air outlet end 12 and the air inlet end 11, so that the compressed air in the air outlet end 12 flows into the air inlet end 11 through the second channel 15, and the adjusting assembly 3 is disposed in the second channel 15. Specifically, as shown in fig. 1, a second channel 15 is arranged in the casing 1, the left end of the second channel 15 is communicated with the air outlet end 11, the right end of the second channel 15 is communicated with the air inlet end 11, and the adjusting component 3 is arranged in the second channel 15, so that the flow rate and the pressure ratio of the compressed air flowing out of the second channel 15 are controlled through the setting of the adjusting component 3, and the flow rate and the pressure ratio of the compressed air flowing out of the air outlet end 12 are controlled.
In some embodiments, the adjusting assembly 3 includes a valve 31, a valve controller 32, and a valve motor (not shown), the valve motor is connected to the valve controller 32 and the valve 31, the valve controller 32 controls the motor 22 to rotate to drive the valve 31, the valve 31 is disposed in the first channel 14 and the second channel 15, the valve controller 32 controls the valve motor according to actual conditions, and the valve motor drives the valve 31 to move in the first channel 14 and the second channel 15, so as to control the opening degree of the first channel 14 and the second channel 15, so as to control the airflow flowing through the first channel 14 and the second channel 15, and adjust the flow rate and the pressure ratio of the compressed air at the air outlet end 12.
In some embodiments, the compression assembly 2 includes a first impeller 21 and a motor 22.
The first impeller 21 is rotatably disposed at the intake end 11.
The motor 22 is disposed in the first chamber 13, an outer circumferential surface of the motor 22 and an inner circumferential surface of the housing 1 are spaced apart to form the air flow passage 13, and the motor 22 is connected to the first impeller 21 so as to drive the first impeller 21 to rotate. Specifically, as shown in fig. 1-3, the first impeller 21 is rotatably disposed at the air inlet end 11 and connected to the motor 22, the motor 22 is disposed in the casing 1 and located between the air inlet end 11 and the air outlet end 12, and the outer peripheral surface of the motor 22 and the inner peripheral surface of the casing 1 are spaced in the inner and outer directions to form the airflow channel 13, so that the first impeller 21 is rotated by the motor 22 to compress air and flows into the air outlet end 12 through the airflow channel 13, thereby making the arrangement of the compression assembly 2 more reasonable.
In some embodiments, the adjustment assembly 3 is in communication with the air intake end 11 and is located on a side of the first impeller 21 away from the motor 22. Specifically, as shown in fig. 1-2, the outlet of the adjusting assembly 3 is communicated with the air inlet end 11 and is located on the right side of the first impeller 21, so that the air flowing out through the adjusting assembly 3 flows into the air inlet channel after being pressurized by the first impeller 21 again, the working efficiency of the air compressor 100 is improved, the air flow is prevented from directly flowing into the air flow channel 13, the internal flow field of the air in the air flow channel 13 is prevented from causing extremely strong disturbance, and the flow loss in the air flow channel 13 is reduced.
In some embodiments, air compressor 100 further includes a volute 16, a second impeller 4, and a turbine 5.
The scroll 16 includes a second chamber 161, a first flow path 162, and a second flow path 163, the second chamber 161 communicating with the airflow channel 131, the first flow path 162 communicating with the second chamber 161 and surrounding an outer peripheral side of the second chamber 161, the second flow path 163 communicating with the second chamber 161 and surrounding an outer peripheral side of the second chamber 161, and the outlet end 12 formed on the first flow path 162.
The second impeller 4 and the turbine 5 are both rotatably arranged in the volute 16, the second impeller 4 is connected with the turbine 5, so that the turbine 5 drives the second impeller 4 to rotate, the second impeller 4 and the first flow passage 162 are oppositely arranged along the inner and outer directions at intervals, so that high-pressure gas is discharged through the first flow passage 162 by means of pressurization of the second impeller 4, and the turbine 5 and the second flow passage 163 are arranged along the inner and outer directions at intervals, so that the turbine 5 is driven to rotate by the gas in the second flow passage 163.
Specifically, as shown in fig. 3, the second chamber 161 penetrates the volute 16 in the left-right direction, a first flow passage 162 and a second flow passage 163 are circumferentially arranged on the outer circumferential side of the second chamber 161, the wind outlet 12 is formed at the free end of the first flow passage 162, the second impeller 4 and the turbine 5 are both rotatably arranged in the second chamber 161, the inlets of the second impeller 4 and the first flow passage 162 are oppositely arranged in the inside-outside direction, the outlets of the turbine 5 and the second flow passage 163 are oppositely arranged in the inside-outside direction, the wind outlet 12 can be connected to external equipment (such as an intercooler, a humidifier and a fuel cell stack), the inlet of the second flow passage 163 is communicated with the outlet of the off-gas of the fuel cell stack, the off-gas of the fuel cell stack is flowed into the second chamber 161 through the second flow passage 163 to drive the turbine 5 to rotate, and then the second impeller 4 is driven to rotate, so that the working efficiency of the motor 22 is improved, and the energy consumption of the motor 22 is reduced. It can be understood that: this scheme is applied to an air compressor for a fuel cell or an air compressor in which the pressure in the second flow passage 163 is lower than the pressure in the first flow passage 162.
In some embodiments, the adjustment assembly 3 is in communication with the second flow passage 163 such that the compressed gas flows into the second flow passage 163 to drive the turbine 5 to rotate. Specifically, as shown in fig. 3, the outlet of the adjusting assembly 3 is communicated with the second flow passage 163, so that the gas flowing out through the adjusting assembly 3 flows into the second flow passage 15 to drive the turbine 5 to rotate, thereby driving the second turbine 4 to rotate, and improving the working efficiency of the air compressor 100.
In some embodiments, the adjusting assembly 3 is a plurality of adjusting assemblies 3, the plurality of adjusting assemblies 3 are arranged at intervals along the circumferential direction of the casing 1, at least one part of the adjusting assemblies 3 of the plurality of adjusting assemblies 3 is communicated with the airflow channel 13, and at least another part of the adjusting assemblies 3 of the plurality of adjusting assemblies 3 is communicated with the air outlet end 12. In particular, a plurality of adjustment assemblies 3 may be provided according to the actual situation, for example: a plurality of adjusting part 3 set up along casing 11's circumference interval, a plurality of adjusting part 3's import all communicates with airflow channel 13, or, a plurality of adjusting part 3's the equal air-out end 12 intercommunication in import, a plurality of adjusting part 3's export all can with air inlet end 11 intercommunication, or, wherein partly import and airflow channel 13 intercommunication among a plurality of adjusting part 3, a plurality of adjusting part 3's wherein partly export and air inlet end 11 intercommunication, a plurality of adjusting part 3's wherein another part import and air-out end 12 intercommunication, a plurality of adjusting part 3's wherein another part export and air inlet end 11 intercommunication, from this, even adjust the air current and the pressure ratio of air-out end 12 through a plurality of adjusting part 3, make air compressor machine 100 set up more rationally.
According to the control method of the air compressor of the embodiment of the present invention, the air compressor 100 is the air compressor 100 of any one of the above embodiments, and the control method includes the following steps:
and discharging part of the compressed gas from at least one of the air outlet end 12 and the air flow passage 131 by using the adjusting assembly 2, so that the flow rate and the pressure ratio of the compressed gas at the air outlet end 12 respectively reach preset values. Specifically, the opening degree of the valve 31 required by the full working condition of the air compressor 100 is tested, and the opening degree of the valve 31 corresponding to the working condition is stored in the valve controller 32.
According to the actual parameters of the patient fed back by the respirator, the regulating component 2 is controlled to regulate the flow and the pressure ratio of the compressed gas flowing out of the regulating component 2 so as to regulate the flow and the pressure ratio of the compressed gas at the air outlet end 12. Specifically, the patient demand parameter fed back from the ventilator is not sent to the motor 22 controller, but to the valve controller 32, thereby controlling the opening degree of the valve 31. In other words, the reciprocating opening change of the valve 31 of the regulating component 3 replaces the reciprocating change of the rotating speed of the rotor of the air compressor 100, so that the response requirement of the air compressor 100 on the motor 22 and the controller is reduced, and the loss of the motor 22 and the controller and the system noise under the variable working condition are reduced.
The control method of the air compressor provided by the embodiment of the invention has the advantages of simple steps, low cost, long service life of the air compressor 100 and the like.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and not intended to limit the invention, and that various changes, modifications, substitutions and alterations can be made herein by those skilled in the art without departing from the scope of the invention.

Claims (10)

1. An air compressor machine, its characterized in that includes:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet end, an air outlet end and a first cavity, and two ends of the first cavity are respectively communicated with the air inlet end and the air outlet end;
the compression assembly is arranged in the first cavity, part of the compression assembly extends into the air inlet end so as to compress air in the air inlet end, and the outer peripheral surface of the compression assembly and the inner peripheral surface of the first cavity are arranged at intervals so as to form an airflow channel so that the compressed air flows into the air outlet end through the airflow channel;
the adjusting assembly is communicated with at least one of the air outlet end and the airflow channel and is used for discharging part of compressed air so as to adjust the flow rate and the pressure ratio of the compressed air at the air outlet end.
2. The air compressor of claim 1, wherein the adjustment assembly is in communication with the inlet end such that compressed air discharged through the adjustment assembly flows into the inlet end.
3. The air compressor as claimed in claim 1, wherein the housing further has a first channel, two ends of the first channel are respectively communicated with the airflow channel and the air inlet end, so that the compressed air in the airflow channel flows into the air inlet end through the first channel, and the adjusting assembly is disposed in the first channel.
4. The air compressor according to any one of claims 1-3, wherein the housing further includes a second channel, two ends of the second channel are respectively communicated with the air inlet end and the air outlet end, two ends of the second channel are respectively communicated with the air outlet end and the air inlet end, so that compressed air in the air outlet end can flow into the air inlet end through the second channel, and the adjusting assembly is disposed in the second channel.
5. The air compressor of claim 1, wherein said compression assembly comprises:
the first impeller is rotatably arranged at the air inlet end;
the motor is arranged in the first cavity, the outer peripheral surface of the motor and the inner peripheral surface of the shell are arranged at intervals to form the airflow channel, and the motor is connected with the first impeller so as to drive the first impeller to rotate.
6. The air compressor of claim 5, wherein the adjustment assembly is in communication with the air intake end and is located on a side of the first impeller away from the motor.
7. The air compressor of claim 1, further comprising:
a scroll casing including a second chamber communicating with the airflow path, a first flow passage communicating with the second chamber and surrounding an outer circumferential side of the second chamber, and a second flow passage communicating with the second chamber and surrounding an outer circumferential side of the second chamber, the outlet being formed on the first flow passage;
the second impeller and the turbine are both rotatably arranged in the volute and are connected with each other so that the turbine can drive the second impeller to rotate, the second impeller and the first flow channel are oppositely arranged at intervals along the inner direction and the outer direction so that high-pressure gas is pressurized by the second impeller and is discharged through the first flow channel, and the turbine and the second flow channel are arranged at intervals along the inner direction and the outer direction so that the gas in the second flow channel drives the turbine to rotate.
8. The air compressor as claimed in claim 7, wherein said regulating assembly is in communication with said second flow passage for compressed air flowing into said second flow passage to drive said turbine to rotate.
9. The air compressor of claim 1, wherein the plurality of adjustment assemblies are spaced apart along a circumferential direction of the housing, at least a portion of the plurality of adjustment assemblies is in communication with the airflow channel, and at least another portion of the plurality of adjustment assemblies is in communication with the air outlet.
10. A control method of an air compressor, characterized in that the air compressor is an air compressor according to any one of claims 1 to 9, the control method comprising the steps of:
discharging part of compressed gas from at least one of the air outlet end and the airflow channel by using the adjusting assembly so as to enable the flow rate and the pressure ratio of the compressed gas at the air outlet end to reach preset values respectively;
and controlling the adjusting assembly to adjust the flow and pressure ratio of the compressed gas flowing out of the adjusting assembly according to the actual parameters of the patient fed back by the respirator so as to adjust the flow and pressure ratio of the compressed gas at the air outlet end.
CN202210761216.4A 2022-06-30 2022-06-30 Air compressor and control method thereof Pending CN115111151A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006207506A (en) * 2005-01-28 2006-08-10 Toyota Motor Corp Supercharging control device
CN105143684A (en) * 2013-03-26 2015-12-09 诺沃皮尼奥内股份有限公司 Methods and systems for antisurge control of turbo compressors with side stream
JP2021022426A (en) * 2019-07-24 2021-02-18 株式会社豊田自動織機 Fuel cell system
CN112555172A (en) * 2020-11-26 2021-03-26 广州市昊志机电股份有限公司 Centrifugal air compressor and hydrogen fuel cell system
CN112696364A (en) * 2019-10-07 2021-04-23 艾略特公司 Method and mechanism for preventing surge of multistage centrifugal compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006207506A (en) * 2005-01-28 2006-08-10 Toyota Motor Corp Supercharging control device
CN105143684A (en) * 2013-03-26 2015-12-09 诺沃皮尼奥内股份有限公司 Methods and systems for antisurge control of turbo compressors with side stream
JP2021022426A (en) * 2019-07-24 2021-02-18 株式会社豊田自動織機 Fuel cell system
CN112696364A (en) * 2019-10-07 2021-04-23 艾略特公司 Method and mechanism for preventing surge of multistage centrifugal compressor
CN112555172A (en) * 2020-11-26 2021-03-26 广州市昊志机电股份有限公司 Centrifugal air compressor and hydrogen fuel cell system

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Application publication date: 20220927