CN113833679A - Compressor capable of reducing air flow loss - Google Patents
Compressor capable of reducing air flow loss Download PDFInfo
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- CN113833679A CN113833679A CN202111088807.1A CN202111088807A CN113833679A CN 113833679 A CN113833679 A CN 113833679A CN 202111088807 A CN202111088807 A CN 202111088807A CN 113833679 A CN113833679 A CN 113833679A
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- 238000001816 cooling Methods 0.000 claims description 55
- 239000000110 cooling liquid Substances 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 136
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5846—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling by injection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a gas compressor capable of reducing gas flow loss, which comprises a shell, guide vanes and a stator, wherein a containing cavity is arranged in the shell, an annular gas flow passage suitable for gas flow is also arranged in the shell, the guide vanes are arranged in the annular gas flow passage, the outer side surfaces of the guide vanes are contacted with the outer wall surface of the annular gas flow passage, the inner side surfaces of the guide vanes are contacted with the inner wall surface of the annular gas flow passage, the stator is arranged in the containing cavity, the stator and the shell define a first passage and a second passage suitable for gas flow, the first passage and the second passage are arranged at intervals in the length direction of the shell, and two ends of the annular gas flow passage are respectively communicated with the first passage and the second passage so that gas flows to the second passage from the first passage and the annular gas flow passage. The compressor capable of reducing the air flow loss can reduce the flow loss of the air flow, improve the efficiency and the supercharging capacity of the compressor capable of reducing the air flow loss and ensure the air flow pressure at an outlet.
Description
Technical Field
The invention relates to the technical field of gas compressors capable of reducing airflow loss, in particular to a gas compressor capable of reducing airflow loss.
Background
Hydrogen energy is an ideal clean secondary energy source. A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy.
The hydrogen fuel cell air compressor provides clean air with specific pressure for the fuel cell power generation system, and is one of key parts of the hydrogen fuel cell system. The two-stage compression high-speed direct-drive oil-free centrifugal air compressor is more and more widely applied to the field of hydrogen fuel cells.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
the related art discloses a two-stage electric compressor capable of reducing air flow loss, wherein a first-stage compression section and a second-stage compression section are respectively arranged at two sides of a rotor, and compressed air discharged from the first-stage compression section is introduced into the second-stage compression section through an air channel to be recompressed. However, the inventors of the present application have found that the flow loss of the air flow in the air passage in the related art is large, affecting the gas pressure at the final outlet.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides the air compressor capable of reducing the air flow loss, which can reduce the flow loss of the air flow, improve the efficiency and the supercharging capacity of the air compressor capable of reducing the air flow loss and ensure the air flow pressure at the outlet.
The compressor capable of reducing the gas flow loss comprises a shell, wherein an accommodating cavity is formed in the shell, and an annular gas flow channel suitable for gas flowing is further formed in the shell; the guide vane is arranged in the annular gas flow channel, the outer side surface of the guide vane is contacted with the outer wall surface of the annular gas flow channel, and the inner side surface of the guide vane is contacted with the inner wall surface of the annular gas flow channel; the stator is arranged in the accommodating cavity, a first channel and a second channel which are suitable for gas to flow are defined by the stator and the shell, the first channel and the second channel are arranged at intervals in the length direction of the shell, one end of the first channel is suitable for being communicated with the atmosphere, the other end of the first channel is communicated with the annular gas flow channel, one end of the second channel is communicated with the annular gas flow channel, the other end of the second channel is suitable for being communicated with external equipment, and the gas flows to the second channel from the first channel and the annular gas flow channel.
According to the air compressor capable of reducing the air flow loss, the air flow loss of the air flow can be reduced, the efficiency and the pressurization capacity of the air compressor capable of reducing the air flow loss are improved, and the air flow pressure at an outlet is ensured.
In some embodiments, the guide vanes are helically disposed within the annular gas flow passage in a length direction of the housing.
In some embodiments, the number of the guide vanes is multiple, the plurality of guide vanes are divided into a plurality of guide vane groups, the plurality of guide vane groups are arranged at intervals in the length direction of the casing, each guide vane group includes a plurality of guide vanes, and the plurality of guide vanes in each guide vane group are arranged at intervals around the stator.
In some embodiments, a cooling liquid inlet and a cooling liquid outlet are provided on the housing, a first cooling flow channel is provided in the guide vane, one end of the first cooling flow channel is communicated with the cooling liquid inlet, and the other end of the first cooling flow channel is communicated with the cooling liquid outlet.
In some embodiments, a second cooling flow passage is provided on the stator, the second cooling flow passage is arranged around the stator in the length direction of the housing, and one end of the second cooling flow passage is communicated with the inlet of the first cooling flow passage, and the other end of the second cooling flow passage is communicated with the outlet of the first cooling flow passage.
In some embodiments, the shell includes first casing part and second casing part, first casing part and second casing part are in end to end in the length direction of shell, the annular gas runner is established in the first casing part, still be equipped with annular gas outflow passageway in the second casing part, annular gas outflow passageway encircles the stator is arranged, annular gas outflow passageway's one end with the second passageway intercommunication, annular gas outflow passageway's the other end is suitable for and communicates annular gas outflow passageway with external equipment.
In some embodiments, the annular gas outflow channel has a gas inlet end and a gas outlet end, the gas inlet end of the annular gas outflow channel is communicated with the second channel, the gas outlet end of the annular gas outflow channel is communicated with the outside, and the flow area of the annular gas outflow channel gradually decreases in the direction from the gas inlet end to the gas outlet end.
In some embodiments, the compressor capable of reducing airflow loss further includes a rotor assembly, the rotor assembly is disposed in the stator in a penetrating manner, and the rotor assembly is rotatable relative to the stator, the rotor assembly includes a rotating shaft, a first impeller and a second impeller, the first impeller and the second impeller are respectively sleeved on the rotating shaft, the first impeller and the second impeller are arranged at intervals in the length direction of the housing, an inlet flow channel is formed by the outer peripheral surface of the first impeller and the inner wall surface of the housing, two ends of the inlet flow channel are respectively communicated with the outside and the first channel, an outlet flow channel is formed by the outer peripheral surface of the second impeller and the inner wall surface of the housing, and two ends of the outlet flow channel are respectively communicated with the second channel and the annular gas outflow channel.
In some embodiments, the rotor assembly further includes a magnetic steel, the magnetic steel is sleeved on the rotating shaft, the magnetic steel is arranged between the first impeller and the second impeller, and the magnetic steel and the stator are oppositely arranged in a radial direction of the rotating shaft so that the magnetic steel and the stator are matched to drive the rotor assembly to rotate. .
In some embodiments, the first and second housing portions are integrally formed, and the guide vanes are integrally formed with the outer shell.
Drawings
Fig. 1 is a schematic structural diagram of a compressor capable of reducing air flow loss according to an embodiment of the present invention.
Reference numerals:
a housing 1, a housing chamber 101, an annular gas flow passage 102, a cooling liquid inlet 103, a cooling liquid outlet 104, a first housing part 11, a second housing part 12, an annular gas outflow passage 121, a third housing part 13,
the guide vanes 2, the first cooling flow channels 21,
the stator 3, the second cooling flow channel 31,
the flow of the first channel 4, the second channel 5,
the rotor assembly 6, a rotating shaft 61, magnetic steel 62, a first impeller 63, a second impeller 64, an air inlet channel 65 and an air outlet channel 66.
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.
The compressor capable of reducing the airflow loss according to the embodiment of the invention comprises a shell 1, guide vanes 2 and a stator 3.
The housing 1 has a receiving cavity 101 therein, and an annular gas flow passage 102 adapted for gas flow is further provided in the housing 1.
Specifically, as shown in fig. 1, an annular gas flow passage 102 extends in the left-right direction, and the annular gas flow passage 102 is provided inside the housing 1.
The guide vane 2 is arranged in the annular gas flow passage 102, the outer side surface of the guide vane 2 is in contact with the outer wall surface of the annular gas flow passage 102, and the inner side surface of the guide vane 2 is in contact with the inner wall surface of the annular gas flow passage 102.
The outer wall surface of the annular gas flow passage 102 and the end surface far from the stator, the inner wall surface of the annular gas flow passage 102 is the end surface near the stator, the outer side surface of the guide vane 2 opposite to the outer side surface is also the end surface far from the stator 3, and the inner side surface of the guide vane 2 and the end surface near the stator 3.
Specifically, as shown in fig. 1, the dimension of the guide vane 2 in the up-down direction is equal to the dimension of the airflow passage in the up-down direction.
The stator 3 is disposed in the accommodating chamber 101, the stator 3 and the housing 1 define a first passage 4 and a second passage 5 adapted to gas flow, the first passage 4 and the second passage 5 are arranged at intervals in a length direction (a left-right direction as viewed in fig. 1) of the housing 1, one end of the first passage 4 is adapted to communicate with the atmosphere, the other end of the first passage 4 communicates with the annular gas flow passage 102, one end of the second passage 5 communicates with the annular gas flow passage 102, the other end of the second passage 5 is adapted to communicate with an external device, and gas flows from the first passage 4 and the annular gas flow passage 102 to the second passage 5.
Specifically, as shown in fig. 1, a first passage 4 and a second passage 5 are defined between the outer wall surface of the stator 3 and the inner wall surface of the housing 1, the first passage 4 is located on the low-pressure side of the compressor capable of reducing the flow loss, the second passage 5 is located on the high-pressure side of the compressor capable of reducing the flow loss, the gas enters the first passage 4, the annular gas flow passage 102 and the second passage 5 in sequence, and the pressure of the gas gradually increases in the process that the gas flows through the first passage 4, the annular gas flow passage 102 and the second passage 5.
According to the gas compressor capable of reducing the gas flow loss, the gas flow channel suitable for gas flow is arranged in the shell 1, so that the gas flow loss can be reduced, the efficiency and the pressurization capacity of the gas compressor capable of reducing the gas flow loss are improved, the gas flow pressure at the outlet is ensured, the flow guide vanes 2 are arranged in the gas channel, the gas flow loss is further reduced, and the efficiency and the pressurization capacity of the gas compressor capable of reducing the gas flow loss are improved.
In some embodiments, the guide vanes 2 are helically disposed within the annular gas flow passage 102 in the length direction of the housing 1.
It should be noted that the number of the guide vanes 2 is one, and one guide vane 2 is arranged in the left-right direction around the stator 3 and is spiral.
According to the compressor capable of reducing the airflow loss, the spiral guide vanes 2 are arranged, so that the air can be guided when flowing in the airflow channel, the airflow loss is reduced, and the efficiency of the compressor capable of reducing the airflow loss is improved.
Preferably, the pitch of the guide vanes 2 is gradually reduced from the first channel 4 to the second channel 5 in the left-right direction, that is, the interval between two adjacent guide vanes 2 in the left-right direction is gradually reduced, so that the pressure of the gas can be gradually increased, and the compression efficiency and the pressurization capacity of the whole compressor capable of reducing the gas flow loss are improved.
In some embodiments, the number of the guide vanes 2 is multiple, the plurality of guide vanes 2 are divided into a plurality of groups of guide vanes 2, the plurality of groups of guide vanes 2 are arranged at intervals in the length direction of the casing 1, each group of guide vanes 2 comprises a plurality of guide vanes 2, and the plurality of guide vanes 2 in each group of guide vanes 2 are arranged at intervals around the stator 3.
Specifically, as shown in fig. 1, the number of the guide vanes 2 included in each group of guide vanes 2 is the same, and the interval distances of the plurality of guide vanes 2 in each group of guide vanes 2 in the circumferential direction of the stator 3 are the same, that is, the interval distances of the plurality of guide vanes 2 in the same group of guide vanes 2 in the circumferential direction of the stator 3 are the same, and the interval distances of the plurality of guide vanes 2 in different groups of guide vanes 2 in the circumferential direction of the stator 3 are the same.
For example, the air conditioner includes a first guide vane 2 group, a second guide vane 2 group, and a third guide vane 2 group, the first guide vane 2 group, the second guide vane 2 group, and the third guide vane 2 group are arranged at intervals in the left-right direction, the number of the guide vanes 2 included in the first guide vane 2 group, the second guide vane 2 group, and the third guide vane 2 group is the same, and the interval distance of the plurality of guide vanes 2 in the first guide vane 2 group in the circumferential direction of the stator 3 is the same as the interval distance of the plurality of guide vanes 2 in the second guide vane 2 group in the circumferential direction of the stator 3 and the interval distance of the plurality of guide vanes 2 in the third guide vane 2 group in the circumferential direction of the stator 3.
It can be understood that the number of the guide vane 2 groups and the number of the guide vanes 2 included in each guide vane 2 group may be adjusted according to actual needs, and the spacing distance between the guide vane 2 groups may also be adjusted according to needs.
According to the air compressor capable of reducing the air flow loss, the angle of the air flow can be adjusted by arranging the plurality of guide vane 2 groups and the plurality of guide vanes 2, so that the pneumatic efficiency is improved.
In some embodiments, the housing 1 is provided with a cooling liquid inlet 103 and a cooling liquid outlet 104, the guide vane 2 has a first cooling flow channel 21 therein, one end of the first cooling flow channel 21 is communicated with the cooling liquid inlet 103, and the other end of the first cooling flow channel 21 is communicated with the cooling liquid outlet 104.
Specifically, as shown in fig. 1, the first cooling channel 21 is disposed inside the guide vane 2, it should be noted that, when the number of the guide vane 2 is one, the first cooling channel 21 penetrates through the entire guide vane 2, when the number of the guide vane 2 is multiple, and the plurality of guide vanes 2 are divided into a plurality of groups of guide vanes 2, an inlet of the first cooling channel 21 is disposed in the leftmost group of guide vanes 2, an outlet of the first cooling channel 21 is disposed in the rightmost group of guide vanes 2, and the first cooling channel 21 penetrates through the plurality of groups of guide vanes 2 from left to right, that is, the first cooling channel 21 penetrates through the plurality of guide vanes 2 in the same group, and also penetrates through different groups of guide vanes 2.
The inlet of the first cooling flow channel 21 communicates with the cooling liquid inlet 103, the outlet of the first cooling flow channel 21 communicates with the cooling liquid outlet 104, and the cooling liquid flows into the first cooling channel through the cooling liquid inlet 103 and is discharged out of the first cooling flow channel 21 through the cooling liquid outlet 104.
According to the compressor capable of reducing the air flow loss, the first cooling flow channel 21 is arranged and the first cooling flow channel 21 is arranged in the guide vane 2, so that the contact between cooling liquid and air flow is avoided, the air in the air flow channel can be cooled, the pneumatic efficiency is improved, and the pressurization capacity of the compressor capable of reducing the air flow loss is improved.
In some embodiments, the stator 3 is provided with a second cooling flow passage 31, the second cooling flow passage 31 is arranged around the stator 3 in the length direction of the housing 1, and one end of the second cooling flow passage 31 is communicated with the inlet of the first cooling flow passage 21, and the other end of the second cooling flow passage 31 is communicated with the outlet of the first cooling flow passage 21.
Specifically, as shown in fig. 1, the second cooling flow passage 31 is arranged around the stator 3, an inlet of the second cooling flow passage 31 communicates with an inlet of the first cooling flow passage 21, and an outlet of the second cooling flow passage 31 communicates with an outlet of the first cooling flow passage 21.
It should be noted that, in some embodiments, a first through hole and a second through hole are formed in the guide vane 2, the first through hole and the second through hole penetrate through the guide vane 2 in the up-down direction, the upper end of the first through hole is communicated with the cooling liquid inlet, the lower end of the first through hole is communicated with the inlet of the second cooling flow channel, the lower end of the second through hole is communicated with the outlet of the second cooling flow channel, and the upper end of the second through hole is communicated with the cooling outlet.
According to the compressor capable of reducing the air flow loss, the second cooling flow channel 31 communicated with the first cooling flow channel 21 is arranged, and the cooling liquid can cool the gas in the annular gas flow channel 102 and the stator 3 at the same time, so that the pneumatic efficiency of the gas is improved, the temperature of the stator 3 is reduced, and the stability and the safety of the operation of the compressor capable of reducing the air flow loss are ensured.
In some embodiments, the housing 1 includes a first housing part 11 and a second housing part 12, the first housing part 11 and the second housing part 12 are connected end to end in the length direction of the housing 1, the annular gas flow passage 102 is provided in the first housing part 11, an annular gas outflow channel 121 is further provided in the second housing part 12, the annular gas outflow channel 121 is arranged around the stator 3, the annular gas outflow channel 121 is communicated with the second channel 5, one end of the annular gas outflow channel 121 is communicated with the second channel 5, and the other end of the annular gas outflow channel 121 is adapted to be communicated with an external device.
Specifically, as shown in fig. 1, the first housing portion 11 is disposed at the left end of the second housing portion 12, the right end of the first housing portion 11 is connected to the left end of the second housing portion, the housing 1 further includes a third housing portion 13, the third housing portion 13 is disposed inside the first housing portion 11, the first housing portion 11 and the third housing portion 13 are disposed at intervals in the inward and outward direction, an annular gas flow passage 102 is defined by an outer wall surface of the third housing portion 13 and an inner wall surface of the first housing portion 11, an inner side surface of the guide vane 2 contacts with an outer wall surface of the third housing portion 13, and an outer side surface of the guide vane 2 contacts with an inner wall surface of the first housing portion 11. The dimension of the guide vane 2 in the vertical direction is equal to the distance between the inner wall surface of the first housing portion 11 and the outer wall surface of the third housing portion 13 in the vertical direction.
The annular gas outflow channel 121 is arranged in the second housing part 12, and the annular gas outflow channel 121 is communicated with the second channel 5, that is, the inlet of the annular gas outflow channel 121 is communicated with the outlet of the second channel 5, and gas enters the annular gas outflow channel 121 through the second channel 5 and finally is discharged out of the compressor, which can reduce gas flow loss.
According to the compressor capable of reducing the air flow loss, the first shell part 11 and the second shell part 12 are arranged, the annular gas flow channel 102 and the gas discharge flow channel are respectively arranged in the different shell parts, and therefore the pneumatic efficiency of gas is improved, and the supercharging capacity of the compressor capable of reducing the air flow loss is improved.
In some embodiments, the annular gas outflow channel 121 has a gas inlet end and a gas outlet end, the gas inlet end of the annular gas outflow channel 121 communicates with the second channel 5, the gas outlet end of the annular gas outflow channel 121 communicates with the outside, and the flow area of the annular gas outflow channel 121 gradually decreases in a direction from the gas inlet end to the gas outlet end.
Specifically, as shown in fig. 1, the annular gas outflow channel 121 is an annular flow channel and is disposed around the stator 3, a gas inlet end of the annular gas outflow channel 121 is communicated with a gas outlet end of the second channel 5, and a gas outlet end of the annular gas outflow channel 121 is communicated with the outside, where it should be noted that a gas outlet pipe may be connected to the gas outlet end of the annular gas outflow channel 121, and the gas outlet pipe is connected to an external device. The flow area of the annular gas outflow channel 121 decreases gradually in the direction of the movement of the gas from the gas inlet end to the gas outlet end.
According to the compressor capable of reducing the air flow loss, the flow area of the annular air outflow channel 121 is gradually reduced in the moving direction of air from the air inlet end to the air outlet end, so that the air can be further compressed, the pressurization capacity of the compressor capable of reducing the air flow loss is improved, and the annular quantity can be formed to enable the air supply of the compressor capable of reducing the air flow loss to be more stable.
In some embodiments, the compressor capable of reducing the airflow loss further includes a rotor assembly 6, the rotor assembly 6 is disposed in the stator 3 in a penetrating manner, and the rotor assembly 6 is rotatable relative to the stator 3, the rotor assembly 6 includes a rotating shaft 61, a magnetic steel 62, a first impeller 63 and a second impeller 64, the first impeller 63, the magnetic steel 62 and the second impeller 64 are respectively sleeved on the rotating shaft 61, and the first impeller 63, the magnetic steel 62 and the second impeller 64 are arranged at intervals in the length direction of the housing 1, an inlet flow channel 65 is formed by the outer peripheral surface of the first impeller 63 and the inner wall surface of the housing 1, two ends of the inlet flow channel 65 are respectively communicated with the outside and the first channel 4, an outlet flow channel 66 is formed by the outer peripheral surface of the second impeller 64 and the inner wall surface of the housing 1, and two ends of the outlet flow channel 66 are respectively communicated with the second channel 5 and the annular gas outflow channel 121.
Specifically, as shown in fig. 1, the rotating shaft 61 penetrates through the stator 3 in the left-right direction, the rotating shaft 61 is disposed in the housing 1, the first impeller 63 is disposed at the left end of the rotating shaft 61, an air inlet channel is defined by the outer peripheral surface of the first impeller 63 and the inner wall surface of the first housing portion 11, the air inlet end of the air inlet channel is communicated with the outside, the air outlet end of the air inlet channel is communicated with the air inlet end of the first channel 4, the second impeller 64 is disposed at the right end of the rotating shaft 61, an air outlet channel is defined by the outer peripheral surface of the second impeller 64 and the inner wall surface of the second housing portion 12, the air inlet end of the air outlet channel is communicated with the air outlet end of the second channel 5, and the air outlet end of the air outlet channel is communicated with the air inlet end of the annular air outlet channel 121. The magnetic steel 62 is sleeved on the rotating shaft 61, the magnetic steel 62 is opposite to the stator 3 in the up-down direction, and the size of the magnetic steel 62 in the left-right direction is smaller than that of the stator 3 in the left-right direction.
According to the gas compressor capable of reducing the gas flow loss, the first impeller 63 and the second impeller 64 are arranged, so that air can be pressurized secondarily, the first impeller 63 compresses the air to form high-pressure gas, the high-pressure gas sequentially passes through the annular gas flow channel 102 and the second channel 5 and then enters the gas outlet channel, the second impeller 64 is used for pressurizing the high-pressure gas secondarily, finally, the high-pressure gas after secondary pressurization is discharged through the annular gas outlet channel 121, and the pressurization capacity of the gas compressor capable of reducing the gas flow loss is improved through secondary pressurization.
In some embodiments, the first housing portion 11 and the second housing portion 12 are integrally formed.
The third housing portion 13, the first housing portion 11, and the second housing portion 12 are integrally formed. According to the compressor capable of reducing the air flow loss, the first shell part 11, the second shell part 12 and the third shell part 13 are integrally formed, so that the air tightness of the shell 1 can be improved, the leakage of compressed air is avoided, the loss of air during flowing is reduced, and the air outlet pressure is ensured.
In some embodiments, the guide vanes 2 are formed integrally with the casing 1.
Specifically, as shown in fig. 1, the guide vanes 2 are integrally formed with the first housing part 11 and the third housing part 13, so that gas is prevented from leaking from gaps between the guide vanes 2 and the first housing part 11 and the third housing part 13, loss of gas flow is reduced, the guide vanes 2 integrally formed with the housing 1 can also function as reinforcing ribs, the rigidity of the housing 1 is improved, the service life of the housing is prolonged, and safety and stability of operation of the compressor capable of reducing gas flow loss are ensured.
The operation principle of the compressor capable of reducing the loss of the air flow according to the embodiment of the present invention will be described with reference to fig. 1.
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," "an example," "a specific example," or "some examples" and the like mean that a specific 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 embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A compressor for reducing gas flow losses, comprising:
the gas flow device comprises a shell, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein a containing cavity is formed in the shell, and an annular gas flow passage suitable for gas flow is further arranged in the shell;
the guide vane is arranged in the annular gas flow channel, the outer side surface of the guide vane is contacted with the outer wall surface of the annular gas flow channel, and the inner side surface of the guide vane is contacted with the inner wall surface of the annular gas flow channel;
the stator is arranged in the accommodating cavity, a first channel and a second channel which are suitable for gas to flow are defined by the stator and the shell, the first channel and the second channel are arranged at intervals in the length direction of the shell, one end of the first channel is suitable for being communicated with the atmosphere, the other end of the first channel is communicated with the annular gas flow channel, one end of the second channel is communicated with the annular gas flow channel, the other end of the second channel is suitable for being communicated with external equipment, and the gas flows to the second channel from the first channel and the annular gas flow channel.
2. The compressor capable of reducing gas flow loss according to claim 1, wherein the guide vanes are spirally disposed in the annular gas flow passage in a length direction of the casing.
3. The compressor according to claim 1, wherein the number of the guide vanes is plural, the plurality of guide vanes are divided into a plurality of guide vane groups, the plurality of guide vane groups are arranged at intervals in a length direction of the casing, each guide vane group includes a plurality of guide vanes, and the plurality of guide vanes in each guide vane group are arranged at intervals around the stator.
4. The compressor according to claim 2 or 3, wherein the casing is provided with a cooling liquid inlet and a cooling liquid outlet, the guide vane has a first cooling flow channel therein, one end of the first cooling flow channel is communicated with the cooling liquid inlet, and the other end of the first cooling flow channel is communicated with the cooling liquid outlet.
5. The compressor according to claim 4, wherein a second cooling flow passage is provided in the stator, the second cooling flow passage is arranged around the stator in a length direction of the housing, and one end of the second cooling flow passage is communicated with an inlet of the first cooling flow passage, and the other end of the second cooling flow passage is communicated with an outlet of the first cooling flow passage.
6. The compressor capable of reducing gas flow loss according to claim 1, wherein the housing includes a first housing portion and a second housing portion, the first housing portion and the second housing portion are connected end to end in a length direction of the housing, the annular gas flow passage is provided in the first housing portion, an annular gas outflow passage is further provided in the second housing portion, one end of the annular gas outflow passage is communicated with the second passage, and the other end of the annular gas outflow passage is adapted to be communicated with an external device.
7. The compressor capable of reducing gas flow loss according to claim 6, wherein the annular gas outflow channel has a gas inlet end and a gas outlet end, the gas inlet end of the annular gas outflow channel is communicated with the second channel, the gas outlet end of the annular gas outflow channel is communicated with the outside, and the flow area of the annular gas outflow channel gradually decreases along the direction from the gas inlet end to the gas outlet end.
8. The compressor capable of reducing the gas flow loss according to claim 7, further comprising a rotor assembly, wherein the rotor assembly penetrates through the stator and is rotatable relative to the stator, the rotor assembly includes a rotating shaft, a first impeller and a second impeller, the first impeller and the second impeller are respectively sleeved on the rotating shaft, the first impeller and the second impeller are arranged at intervals in the length direction of the housing, an inlet flow channel is formed by an outer peripheral surface of the first impeller and an inner wall surface of the housing, two ends of the inlet flow channel are respectively communicated with the outside and the first channel, an outlet flow channel is formed by an outer peripheral surface of the second impeller and the inner wall surface of the housing, and two ends of the outlet flow channel are respectively communicated with the second channel and the annular gas outlet channel.
9. The compressor of claim 8, wherein the rotor assembly further comprises a magnetic steel, the magnetic steel is sleeved on the rotating shaft, the magnetic steel is disposed between the first impeller and the second impeller, and the magnetic steel and the stator are disposed opposite to each other in a radial direction of the rotating shaft so that the magnetic steel and the stator cooperate with each other to drive the rotor assembly to rotate.
10. The compressor of any one of claims 6 to 9, wherein the first and second housing portions are integrally formed, and the guide vane wheel is integrally formed with the outer casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088807.1A CN113833679A (en) | 2021-09-16 | 2021-09-16 | Compressor capable of reducing air flow loss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111088807.1A CN113833679A (en) | 2021-09-16 | 2021-09-16 | Compressor capable of reducing air flow loss |
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| CN113833679A true CN113833679A (en) | 2021-12-24 |
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| CN202111088807.1A Pending CN113833679A (en) | 2021-09-16 | 2021-09-16 | Compressor capable of reducing air flow loss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278589A (en) * | 2022-01-05 | 2022-04-05 | 北京临近空间飞艇技术开发有限公司 | Helium gas compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389800A (en) * | 2014-10-15 | 2015-03-04 | 陈远进 | Mixed flow air compressor of aero-engine |
| CN107725174A (en) * | 2016-05-11 | 2018-02-23 | 株式会社马勒滤清系统 | Turbocharger |
| CN109072928A (en) * | 2016-11-22 | 2018-12-21 | 填易涡轮机械商贸有限公司 | Turbo-compressor including intercooler |
| CN109268295A (en) * | 2018-11-20 | 2019-01-25 | 势加透博（北京）科技有限公司 | A kind of two-stage air compression system with diameter axial direction diffuser |
| CN110608176A (en) * | 2019-10-09 | 2019-12-24 | 合肥工业大学 | Electric two-stage supercharger |
| CN111536057A (en) * | 2020-05-09 | 2020-08-14 | 太原科技大学 | Two-stage compressor of hydrogen fuel turbine range extender |
-
2021
- 2021-09-16 CN CN202111088807.1A patent/CN113833679A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389800A (en) * | 2014-10-15 | 2015-03-04 | 陈远进 | Mixed flow air compressor of aero-engine |
| CN107725174A (en) * | 2016-05-11 | 2018-02-23 | 株式会社马勒滤清系统 | Turbocharger |
| CN109072928A (en) * | 2016-11-22 | 2018-12-21 | 填易涡轮机械商贸有限公司 | Turbo-compressor including intercooler |
| CN109268295A (en) * | 2018-11-20 | 2019-01-25 | 势加透博（北京）科技有限公司 | A kind of two-stage air compression system with diameter axial direction diffuser |
| CN110608176A (en) * | 2019-10-09 | 2019-12-24 | 合肥工业大学 | Electric two-stage supercharger |
| CN111536057A (en) * | 2020-05-09 | 2020-08-14 | 太原科技大学 | Two-stage compressor of hydrogen fuel turbine range extender |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278589A (en) * | 2022-01-05 | 2022-04-05 | 北京临近空间飞艇技术开发有限公司 | Helium gas compressor |
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Application publication date: 20211224 |