A new type of wheel-type air compressor

Abstract

The present invention provides a novel technical solution for a wheel-type compressor device, which includes a shell and an impeller. The impeller is composed of a wheel body, a wheel shaft and blades. The blades are fixed on the wheel body, and the wheel body is fixed on the wheel shaft and installed in a wheel cavity in the shell. A sub-cavity is provided on the periphery of the wheel cavity corresponding to the impeller blades on the semicircle farthest from the air inlet and the exhaust port in the wheel cavity of the shell and is communicated with the wheel cavity. A partition matching the cross-section of the sub-cavity is provided in the sub-cavity, and the partition divides the sub-cavity into a plurality of sub-cavities. When the impeller blades are in the partition, the front and rear adjacent sub-cavities separated by the partition remain relatively sealed, the air inlet is communicated with the air inlet duct, and the exhaust port is communicated with the exhaust duct.

Description

Technical Field

[0001] The present invention relates to a compressor machine, in particular to a wheel compressor device. Background Art

[0002] In the prior art, the technology closest to the present application is the vortex air pump technology that originated in the Second Industrial Revolution. Although the vortex air pump has many advantages such as light weight and low noise, the semi-annular sub-cavity of the vortex air pump is connected front to back, and the compressed gas is in a free spiral circulation state between the impeller and the semi-annular sub-cavity during operation, resulting in low output pressure. The pressure of the output compressed gas only changes with the input power, that is, the output pressure remains unchanged when the input power remains unchanged. Under the same input power, the output pressure is relatively single. Due to its unique semi-circular ring structure, a negative pressure almost equal to that of the output port is generated at the air inlet during operation, which fully proves that there are major defects in its structure, resulting in serious shortage of air intake. This is the fundamental reason for the relatively low output pressure and low air compression efficiency of the vortex air pump. It is these shortcomings that have prevented it from being widely used and popularized, and this is where the problem lies. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a new wheel-type compressor device that can output higher pressure and higher working efficiency in view of the shortcomings of the prior art. The new wheel-type compressor device can allow the compressor impeller to compress and work the inhaled gas multiple times during one rotation, that is, the same gas can obtain more compression cycles during the rotation of the compressor impeller, thereby achieving the compression effect that can only be achieved by a multi-stage compression mechanism, changing the intake structure, adding a booster impeller to increase the intake volume, solving the problem of insufficient intake, further improving the compression efficiency, and improving the problem of low compression efficiency.

[0004] The present novel wheel-type compressor device is realized by the following technical measures: it is mainly composed of a casing, an impeller, etc., wherein the casing has an impeller cavity, the impeller has a wheel body, a wheel shaft, and blades, the blades are mounted on the circumference of the wheel body, the wheel body center is equipped with a wheel shaft, the wheel shaft can be equipped with a supporting bearing, the impeller is mounted in the impeller cavity in the casing, the casing can have multiple impellers respectively mounted in their respective wheel cavities, the frontmost impeller among the multiple impellers can be a booster impeller, the booster impeller can be a centrifugal booster impeller, an axial-flow booster impeller, or an axial-flow plus centrifugal composite booster turbine, the multiple impellers can be mounted on the same wheel shaft, or on different wheel shafts, and the different wheel shafts can be arranged in a certain direction. It can be connected with a speed change device, and the speed change device can be an external gear speed change structure, an internal gear speed change structure, or a speed change structure composed of a planetary gear set. The speed change device can have a speed control mechanism, and the speed control mechanism can be an electromagnetic control mechanism, a mechanical control mechanism, or any speed control mechanism in the prior art that can be used for the novel wheel-type compressor device. An air inlet and an exhaust port are arranged on the same semicircle of the impeller cavity corresponding to the impeller blades on the outer circle of the working impeller cavity on the shell. The impeller air inlet can be on the impeller circumference, on the side of the impeller cavity, or on the center of one side of the impeller cavity. The size of the impeller cavity matches the impeller, and a small airtight gap is maintained between the impeller and the inner cavity wall of the cavity. , try to seal but do not contact with the inner wall of the wheel cavity. When there are multiple impellers in the shell, the exhaust port of the previous impeller wheel cavity is connected with the air inlet of the next impeller wheel cavity to form a series structure. The outer periphery of the wheel cavity corresponding to the impeller blade on the semicircle farthest from the air inlet and exhaust port of the wheel cavity in the shell is provided with a sub-cavity and communicated with the wheel cavity. The sub-cavity can be an arc-shaped sub-cavity. The arc-shaped sub-cavity is on the outer circumferential surface of the impeller wheel cavity. The inner arc of the arc-shaped sub-cavity is the same as the outer arc of the impeller wheel cavity. The arc-shaped sub-cavity is connected with the outer arc surface of the impeller wheel cavity with its inner arc surface. One end of the arc-shaped sub-cavity is connected with the impeller wheel cavity outlet. The sub-cavity can be a semicircular annular sub-cavity. The cross-section of the semicircular annular sub-cavity can be L-shaped and wrapped around the impeller wheel cavity inlet. On the impeller wheel cavity corresponding to the impeller blades in the semicircle where the air inlet and the exhaust port are farthest apart, there may be a plurality of L-shaped partitions in the semicircular annular sub-cavity, and the L-shaped partitions are inclined from the impeller wheel cavity air inlet side to the impeller wheel cavity exhaust port side to divide the semicircular annular sub-cavity into a plurality of L-shaped sub-cavities, and the centripetal end of the L-shaped sub-cavity is inclined from the impeller wheel cavity air inlet side to the impeller wheel cavity exhaust port side along the impeller rotation direction, and the centripetal end of the inclined L-shaped sub-cavity corresponds to and communicates with the bottom of the impeller blades on the side of the impeller wheel cavity, and the centrifugal end of the inclined L-shaped sub-cavity is communicated with the impeller wheel cavity on the outer circumferential surface of the impeller wheel cavity, and the cross-section of the semicircular annular sub-cavity may also be C-shaped and wrapped on the impeller wheel cavity corresponding to the impeller blades in the semicircle where the air inlet and the exhaust port of the impeller wheel cavity are farthest apart,The C-shaped cross-section of the semicircular annular sub-cavity may have a raised ridge in the middle, and the semicircular annular sub-cavity may have a corresponding C-shaped partition, and the C-shaped partition divides the semicircular annular sub-cavity into multiple sections, and each section of the sub-cavity forms a relative C-shaped channel when the impeller rotates. The C-shaped partition in the semicircular annular sub-cavity may be inclined, and the inclined C-shaped partition divides the semicircular annular sub-cavity into multiple inclined C-shaped sub-cavities, and the inclined C-shaped partition is inclined from the impeller wheel cavity air inlet side to the impeller wheel cavity exhaust side along the impeller rotation direction. The cross-section of the semicircular annular sub-cavity can also be a right-angled U-shape wrapped around the impeller wheel cavity corresponding to the impeller blade in the semicircle where the impeller wheel cavity air inlet and exhaust port are farthest apart. The right-angled U-shaped semicircular The annular sub-cavity may be provided with a correspondingly matched right-angled U-shaped movable spacer, a movable shaft is installed on the right-angled top edge in the middle of the right-angled U-shaped movable spacer, both ends of the movable shaft are installed on the shell, the right-angled U-shaped movable spacer can be tilted forward and backward with the movable shaft as the axis, the right-angled U-shaped movable spacer divides the semicircular annular sub-cavity into a plurality of right-angled U-shaped sub-cavities, when the impeller blades are just in the groove of the right-angled U-shaped movable spacer, the plurality of right-angled U-shaped sub-cavities divided by the movable spacer remain relatively sealed, one end of the movable shaft extends out of the shell and is provided with a regulating device, the regulating device may be an automatic regulating device equipped with a pressure sensor, may be a semi-automatic regulating device, or may be other forms of adjustable right-angled U-shaped movable spacer in the prior art A device for regulating the inclination of the partition, the cross-section of the semicircular annular sub-cavity can also be in a right-angled L-shape and wrapped on the side of the impeller cavity corresponding to the semicircle of the impeller cavity where the air inlet and the exhaust port are farthest apart, and the impeller blades, the right-angled L-shaped semicircular annular sub-cavity can have a corresponding matching right-angled L-shaped movable partition, the centrifugal right-angled edge of the right-angled L-shaped movable partition is equipped with a movable shaft, both ends of the movable shaft are installed on the shell, the right-angled L-shaped movable partition can be tilted and moved forward and backward with the movable shaft as the axis, the right-angled L-shaped movable partition divides the semicircular annular sub-cavity into a plurality of right-angled L-shaped sub-cavities, and when the impeller blade is just within the right angle of the right-angled L-shaped movable partition, the plurality of right-angled L-shaped sub-cavities separated by the right-angled L-shaped movable partition remain relatively close The movable shaft is sealed, one end of the movable shaft extends out of the housing and is equipped with a regulating device, the regulating device may be an automatic regulating device equipped with a pressure sensor, or a semi-automatic regulating device, or other forms of regulating mechanisms in the prior art that can adjust the inclination of the right-angle L-shaped movable spacer, the housing may have an insulation layer outside, the insulation layer has heat insulation material inside, the axle may have a bearing, the housing may have a heat sink, the impeller may be an open impeller structure with blades as wide as the wheel body, or a semi-closed impeller structure with one side of the blade blocked by a wheel blade, the impeller may also be an impeller structure with the middle of the impeller blade blocked by a wheel blade, or an impeller structure with the width of the impeller blade greater than the width of the impeller body.

[0005] The present novel wheel-type air compressor can be applied to the compression of various gases. The following is a brief description of its working principle using air at room temperature as the medium. When there is a booster impeller, mechanical energy is input through the wheel shaft to drive the impeller to rotate, and the air outside the casing enters the impeller cavity through the booster impeller cavity air inlet. The air gas at the cavity air inlet is referred to as the first gas. It first enters the impeller cavity at the cavity air inlet, which is temporarily referred to as the first impeller cavity. The first gas generates centrifugal force in the first impeller cavity as the impeller rotates. Under the action of the centrifugal force, the first gas moves toward the outer circle of the cavity as the impeller rotates. When the first impeller cavity rotates to the semicircular arc-shaped secondary cavity, the first gas in the first impeller cavity enters the semicircular arc-shaped secondary cavity under the action of the centrifugal force. shaped sub-cavity, as the impeller rotates, the gases in the subsequent impeller cavities enter the semicircular sub-cavity under the action of centrifugal force, just like the first gas in the first impeller cavity. The gas density in the semicircular sub-cavity increases and the pressure rises. The gas with increased density and increased pressure in the semicircular sub-cavity is discharged through the wheel cavity exhaust port and enters the next impeller wheel cavity inlet. The first gas with a certain pressure in the wheel cavity inlet first enters the first impeller cavity at the inlet. When the first impeller cavity rotates to the semicircular annular sub-cavity, the first gas in the first impeller cavity moves toward the outer circle of the wheel cavity along the impeller blades as the impeller rotates, and enters the semicircular annular sub-cavity with relatively low pressure under the action of centrifugal force. When there is a partition in the semicircular annular sub-cavity Under the action of centrifugal force, the first gas enters the first sub-chamber separated by the partition with lower pressure, which is called the first sub-chamber here. With the rotation of the impeller, the gas in the subsequent impeller cavities continues to enter the first sub-chamber under the action of centrifugal force like the first gas in the first impeller cavity. The gas density in the first sub-chamber continues to increase and the pressure continues to rise. After the pressure rises, the first gas is blocked by the partition in the first sub-chamber and is forced to enter the wheel cavity side corresponding to the bottom of the impeller blade along the forward side of the partition in the sub-chamber and enter the next impeller cavity with relatively low pressure again. We call it the bottom of the second impeller cavity. The first gas entering the bottom of the second impeller cavity is increased in energy again with the rotation of the impeller and then moves along the impeller blades to the outer circle of the wheel cavity. Movement, under the action of centrifugal force, it is pushed into the next sub-chamber again, which is called the second sub-chamber here. Under the continuous rotation of the impeller, the gas in the subsequent impeller cavities absorbs energy like the first gas in the first impeller cavity, and enters the second sub-chamber successively under the action of centrifugal force. The density of the first gas in the second sub-chamber continues to increase and the pressure rises again. After the pressure rises again, the first gas is blocked by the partition again in the second sub-chamber and is forced to move forward and inward along the partition in the sub-chamber to the side of the wheel cavity corresponding to the bottom of the impeller blade and enter the next impeller cavity with relatively low pressure for the third time. We call it the bottom of the third impeller cavity. The first gas entering the bottom of the third impeller cavity is moved toward the outer circle of the wheel cavity again along the impeller blades as the impeller rotates.After absorbing energy again, it is pushed into the next sub-chamber by centrifugal force, which is called the third sub-chamber. With the continuous rotation of the impeller, the first gas is forced to enter and exit the semicircular annular sub-chamber many times, and absorbs energy repeatedly from the impeller blades to become high-energy gas, and is discharged through the impeller wheel cavity exhaust port. Under the continuous rotation of the impeller, the gases in the subsequent impeller cavities are forced to enter and exit the semicircular annular sub-chamber many times, and absorb energy repeatedly from the impeller blades to become high-energy gas, and are discharged through the impeller wheel cavity exhaust port. When there is a right-angle U-shaped movable partition in the semicircular annular sub-chamber, the first gas in the first impeller cavity moves along the impeller blades toward the outer circle of the wheel cavity with the rotation of the impeller, and enters the movable partition with lower pressure under the action of centrifugal force. The first right-angled U-shaped sub-chamber separated is called the first sub-chamber here. With the rotation of the impeller, the gases in the subsequent impeller cavities continue to enter the first right-angled U-shaped sub-chamber, i.e., the first sub-chamber, under the action of centrifugal force, just like the first gas in the first impeller cavity. The gas density in the first sub-chamber continues to increase and the pressure continues to rise. After the pressure rises, the first gas in the first sub-chamber is blocked by the movable partition and forced to move inward along the movable tongue to the side of the wheel cavity corresponding to the bottom of the impeller blade and enter the next impeller cavity with relatively low pressure again, which we call the bottom of the second impeller cavity. The first gas entering the bottom of the second impeller cavity is energized again with the rotation of the impeller and moves toward the outer circle of the wheel cavity along the impeller blades. Under the action of centrifugal force It is pushed into the next right-angled U-shaped sub-cavity again, which is called the second sub-cavity here. Under the continuous rotation of the impeller, the gas in the subsequent impeller cavities is given energy like the first gas in the first impeller cavity, and enters the second sub-cavity successively under the action of centrifugal force. The gas density in the second sub-cavity continues to increase and the pressure rises again. After the pressure rises again, the first gas in the second sub-cavity is blocked by the movable partition again and is forced to go inward along the movable partition in the sub-cavity to the side of the wheel cavity corresponding to the bottom of the impeller blade and enter the next impeller cavity with relatively low pressure for the third time. We call it the bottom of the third impeller cavity. The first gas entering the bottom of the third impeller cavity is given energy again as the impeller rotates, and then moves along the impeller blades to the wheel The first gas, which is energized again, moves in a circular motion outside the cavity. The centrifugal force pushes the first gas into the next right-angled U-shaped sub-cavity, which is called the third sub-cavity. With the continuous rotation of the impeller, the first gas is forced to enter and exit the right-angled U-shaped sub-cavity many times and is repeatedly energized by the impeller blades to become high-energy gas, which is then discharged from the impeller cavity exhaust port. With the continuous rotation of the impeller, the gas in each subsequent impeller cavity, like the first gas, enters and exits the right-angled U-shaped sub-cavity many times and repeatedly absorbs energy from the impeller blades to become high-energy gas, which is then discharged from the impeller cavity exhaust port. With the continuous rotation of the impeller, when the pressure of the first gas reaches a preset pressure value that can overcome the pressure of the control device on the active shaft of the right-angled U-shaped active diaphragm,The right-angled U-shaped movable diaphragm begins to tilt toward the impeller rotation direction with the movable axis as the axis. At this time, the two adjacent right-angled U-shaped sub-cavities are connected, and part of the gas in the first gas can directly cross the right-angled U-shaped movable diaphragm into the next right-angled U-shaped sub-cavity, without being blocked by the movable diaphragm to enter the side sub-cavity of the wheel cavity corresponding to the bottom of the impeller blade. When the gas pressure in all right-angled U-shaped sub-cavities reaches the preset pressure value of the control device on the movable axis of the right-angled U-shaped movable diaphragm, all right-angled U-shaped movable diaphragms begin to tilt toward the impeller rotation direction with the movable axis as the axis. At this time, the semicircular annular sub-cavity All of them are penetrated, and most of the gas in the first gas can directly cross all the right-angle U-shaped movable partitions and enter the impeller wheel cavity exhaust port and be discharged through the exhaust duct, which not only limits the gas pressure, but also reduces the resistance of the impeller rotation and increases the gas output. When there are multiple impellers installed on the same wheel shaft in the housing, each impeller rotates synchronously at the same speed. The first gas first enters the boost impeller cavity through the front boost impeller inlet. After the first gas is added energy by the boost impeller in the front boost impeller, it enters the next impeller inlet through the boost impeller exhaust port and passes through the next impeller inlet. After entering the next impeller cavity, the first gas is energized by the next impeller again and enters the next impeller inlet through the exhaust port, enters the next impeller cavity through the next impeller inlet, and is energized by the next impeller again. In this way, the first gas that has been energized multiple times becomes high-energy gas and is discharged through the exhaust port of the last impeller cavity. When there are multiple impellers installed on different wheel shafts in the casing, the speed change devices between the impellers can rotate at different speed ratios under the regulation of the speed change control mechanism. The first gas first enters the front boost impeller cavity, and then enters the last impeller cavity. After being energized by the boost impeller, the gas in the front boost impeller enters the next impeller inlet through the exhaust port, enters the next impeller cavity through the next impeller inlet, enters the next impeller inlet through the exhaust port after being energized by the next impeller again, enters the next impeller inlet through the exhaust port, enters the next impeller cavity through the next impeller inlet, and is energized by the next impeller again. The first gas that has been energized multiple times is finally discharged through the impeller cavity exhaust port. Since the impellers can rotate at different speed ratios, the exhaust volume and exhaust pressure between the impellers can achieve the best adaptation and matching.

[0006] In summary, when the novel wheel-type compressor device is working, the gas is energized by the impeller blades and enters the sub-cavity under the action of centrifugal force. The energized gas is forced to enter the impeller cavity with relatively low pressure again through the sub-cavity partition. The compressed gas energized by the next impeller enters the next sub-cavity again under the action of centrifugal force. The compressed gas energized by the impeller again is blocked by the partition in the next sub-cavity and is forced to enter the next impeller cavity with relatively lower pressure again. The next impeller energizes the gas again. Finally, the first gas is converted into high-energy gas and is The compressed gas is discharged from the impeller cavity exhaust port. When the pressure of the compressed gas reaches the preset pressure value of the regulating device, the movable partition is inclined in the direction of rotation of the impeller, so that the sub-cavities form a through state. The compressed gas can directly cross the movable partition and enter the exhaust port for discharge, so that the output compressed gas pressure can be adjusted, the resistance to the impeller rotation is reduced, and the rotation speed of each impeller can be controlled and variable, so that the intake volume and exhaust pressure between the impellers can achieve the best adaptation and matching, thereby improving the compression work efficiency. It can be seen that the new wheel-type compressor device has obvious progress and remarkable effects compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Figure 2 It is a schematic structural diagram of the first embodiment.

[0008] Figure 1 for Figure 2 Schematic diagram of the vertical cut structure along the line B.

[0009] Figure 2 for Figure 1 Schematic diagram of the cross-section structure along line A in the middle.

[0010] Figure 3 , Figure 4 It is a schematic structural diagram of a second embodiment.

[0011] Figure 3 for Figure 4 Schematic diagram of the vertical cut structure along the line B.

[0012] Figure 4 for Figure 3 Schematic diagram of the cross-section structure along line A in the middle.

[0013] Figure 5 , Figure 6 It is a schematic structural diagram of the third implementation mode.

[0014] Figure 5 for Figure 6 Schematic diagram of the vertical cut structure along the line B.

[0015] Figure 6 for Figure 5Schematic diagram of the cross-section structure along line A in the middle.

[0016] Figure 7 , Figure 8 , Fig. 9 , Fig.10 It is a schematic structural diagram of the fourth embodiment.

[0017] Figure 7 for Figure 8 , Fig. 9 Schematic diagram of the vertical cutting structure along the line B and B″.

[0018] Figure 8 for Figure 7 Schematic diagram of the cross-section structure along line A in the middle.

[0019] Fig. 9 for Figure 7 Schematic diagram of the cross-section structure along the line A" in the middle.

[0020] Fig.10 for Figure 7 Schematic diagram of the structure cut along the line at D.

[0021] Fig.11 , Fig.12 , Fig.13 , Fig.14 It is a structural schematic diagram of the fifth embodiment.

[0022] Fig.11 for Fig.12 , Fig.13 Schematic diagram of the vertical cutting structure along the line at B and B′.

[0023] Fig.12 for Fig.11 Schematic diagram of the cross-section structure along line A in the middle.

[0024] Fig.13 for Fig.11 Schematic diagram of the cross-section structure along the line A′.

[0025] Fig.14 for Fig.11 Schematic diagram of the structure cut along the line at D.

[0026] Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 It is a structural schematic diagram of the sixth embodiment.

[0027] Fig.15 for Fig.16 , Fig.17 , Fig.18 Schematic diagram of the vertical cutting structure along the lines B, B′, and B″.

[0028] Fig.16 for Fig.15 Schematic diagram of the cross-section structure along line A in the middle.

[0029] Fig.17 for Fig.15 Schematic diagram of the cross-section structure along the line A′.

[0030] Fig.18 for Fig.15 Schematic diagram of the cross-section structure along the line A" in the middle.

[0031] Fig.19 for Fig.15 Schematic diagram of the structure cut along the line at D.

[0032] Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 It is a structural schematic diagram of the seventh implementation mode.

[0033] Fig. 20 For along Fig.21 , Fig. 22 , Fig.23 Schematic diagram of the vertical cutting structure at B, B′, and B″.

[0034] Fig.21 for Fig. 20 Schematic diagram of the cross-section structure along line A in the middle.

[0035] Fig. 22 for Fig. 20 Schematic diagram of the cross-section structure along the line A′.

[0036] Fig.23 for Fig. 20 Schematic diagram of the cross-section structure along the line A" in the middle.

[0037] Fig.24 for Fig. 20 Schematic diagram of the structure cut along the line at D.

[0038] In the figure, 1 is a casing, 2 is a wheel body, 2' is a wheel body of a preceding impeller, 2" is a wheel body of a supercharging impeller, 3 is a wheel shaft, 3' is a wheel shaft of a preceding impeller, 3" is a wheel shaft of a supercharging impeller, 4 is a blade, 4' is a blade of a preceding impeller, 4" is a blade of a supercharging impeller, 5 is a movable spacer, 6 is a movable shaft, 7 is an impeller cavity, 7' is a cavity of a preceding impeller, 7" is a cavity of a supercharging impeller, 8 is an air inlet of a wheel cavity, 8' is an air inlet of a wheel cavity of a preceding impeller, 8" is an air inlet of a wheel cavity of a supercharging impeller, 9 is an exhaust port of a wheel cavity, 9' is an exhaust port of a wheel cavity of a preceding impeller, 9" is an exhaust port of a wheel cavity of a supercharging impeller, 10 is an auxiliary cavity, 10' is an auxiliary cavity of a preceding impeller, 10" is an auxiliary cavity of a supercharging impeller, 11 is a bearing, 12 is an air inlet, 13 is an exhaust port, 14 is a speed change device, 15 is a speed control mechanism, 16 is a heat-insulating layer, 17 is a ridge, 18 is a wheel blade, 19 is a regulating device, 20 is a wheel cavity, 20' is a wheel cavity of the previous impeller, 20" is a wheel cavity of the boost impeller, 21 is a heat sink, and 22 is a spacer. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the technical features of the novel wheel-type air compressor, the present invention is further described below through seven implementation methods and in conjunction with the accompanying drawings.

[0040] Figure 1 , Figure 2 The first embodiment of the novel wheel-type compressor device is shown. It can be seen from the accompanying drawings that the novel wheel-type compressor device shown in this embodiment is mainly composed of a housing 1 and an impeller. The housing 1 is provided with a heat sink 21. A bearing 11 is installed on the inner wheel shaft 3 of the housing 1. The impeller is composed of a wheel body 2, a wheel shaft 3, and blades 4. The blades 4 are installed on the outer circumference of the wheel body 2. The wheel body 2 is provided with a wheel shaft 3 at the center. The impeller is installed in an impeller wheel cavity 20 in the housing 1. The size of the impeller wheel cavity 20 matches that of the impeller. The impeller maintains a small airtight gap with the inner wall of the wheel cavity 20, and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20. The inner wheel cavity of the housing 1 There are an air inlet 8 and an exhaust port 9 on 20, and the air inlet 8 and the exhaust port 9 are connected to the outside through the air inlet duct 12 and the exhaust duct 13 respectively. A semicircular annular sub-cavity 10 is provided on the outer circumferential surface of the wheel cavity 20 corresponding to the impeller blades 4 in the semicircular part of the wheel cavity 20 in the shell 1, where the air inlet 8 and the exhaust port 9 are farthest apart. The cross-section of the semicircular annular sub-cavity 10 is L-shaped and wrapped around the impeller wheel cavity 20. There are multiple inclined L-shaped partitions in the semicircular annular sub-cavity to divide the semicircular sub-cavity into multiple inclined L-shaped sub-cavities. The centripetal end of the L-shaped sub-cavity is inclined inwardly along the rotation direction of the impeller, and the inner circular surface of the semicircular annular sub-cavity 10 is connected to the impeller wheel cavity 20.

[0041] Basic working principle: When working, the power is input through the wheel shaft 3 to drive the impeller to rotate, and the air in the atmosphere enters the impeller wheel cavity 20 into the air inlet 8 through the impeller wheel cavity 20 air inlet 12 on the housing 1. The gas at the air inlet 8 is referred to as the first gas and first enters the first impeller cavity 7 at the air inlet 8. As the impeller rotates, the first gas at the air inlet 8 continues to enter the impeller cavity 7 that is subsequently transferred to. The first gas is pushed by the impeller to rotate in the first impeller cavity 7. The energy of the first gas rises rapidly. After the energy is applied by the impeller, the first gas moves along the impeller blades 4 to the impeller under the action of centrifugal force. The impeller moves outwardly into the first L-shaped sub-cavity 10 separated by the L-shaped partition. The first gas in the subsequent impeller cavities 7 also continues to enter the first L-shaped sub-cavity 10 as the impeller rotates. The pressure of the first gas in the first L-shaped sub-cavity 10 increases rapidly. The first gas after the pressure increase is blocked by the L-shaped partition and is forced to follow the inclined L-shaped partition inward to enter the side of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 and enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure again. The first gas entering the impeller cavity 7 at the bottom of the impeller blade 4 rotates again with the impeller and is again After the first gas is energized for the first time, it enters the second L-shaped sub-cavity 10 along the impeller blade 4 under the action of centrifugal force. The first gas in each subsequent impeller cavity 7 is also energized by the impeller as the impeller rotates and enters the second L-shaped sub-cavity 10 successively. The pressure of the first gas in the second L-shaped sub-cavity 10 increases again. After the pressure continues to increase, the first gas is blocked by the partition again and is forced to follow the inclined L-shaped partition inward to enter the side of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 and enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure again, and enters the impeller cavity 7 at the bottom of the impeller blade 4. The first gas in the cavity 7 will rotate with the impeller for the third time. After being energized by the impeller for the third time, the first gas will enter the third L-shaped sub-cavity 10 again along the impeller blades 4 under the action of centrifugal force. As the impeller continues to rotate, the first gas will continuously move in and out in a spiral shape in the impeller cavity 7 and the L-shaped sub-cavity 10. Each time the first gas enters the impeller cavity, the impeller will energize it once. After being energized by the impeller for many times, the first gas will become a high-energy gas with high density and pressure when it reaches the exhaust port 9 of the wheel cavity 20. The first gas that becomes a high-energy gas is finally discharged through the exhaust duct 13. It can be seen that the L-shaped sub-cavity 10 has the functions of storing, expanding, connecting, and changing the running trajectory of the first gas during operation. The first gas is forced to move inward and toward the centripetal end along the inclined L-shaped diaphragm under the obstruction of the L-shaped diaphragm and enter the impeller cavity 7 again for passive circular motion, so that the first gas can absorb the energy of the impeller many times while rotating with the impeller, effectively increasing the pressure of the gas output from the exhaust port 9.

[0042] Figure 3 , Figure 4The second embodiment of the novel wheel-type compressor device is shown. It can be seen from the accompanying drawings that the novel wheel-type working device shown in this embodiment is mainly composed of a housing 1 and an impeller. The housing 1 has an insulation layer 23, and the insulation layer 23 has a heat-insulating material. The impeller is composed of a wheel body 2, a wheel shaft 3, and blades 4. The blades 4 are installed on the outer circumference of the wheel body 2. The blades 4 are separated by wheel pieces 18 in the middle. The wheel body 2 is equipped with a wheel shaft 3 in the center. The impeller is installed in the impeller wheel cavity 20 in the housing 1. The size of the impeller wheel cavity 20 matches the impeller, and the impeller maintains a small airtight gap with the inner wall of the wheel cavity 20, and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20. There is an air inlet 8 and an exhaust port 9 on the wheel cavity 20 in the shell 1, and the air inlet 8 and the exhaust port 9 are connected to the outside through the air inlet duct 12 and the exhaust duct 13 respectively. The semicircular outer circumferential surface of the wheel cavity 20 corresponding to the impeller blade 4 is the farthest from the air inlet 8 and the exhaust port 9 in the wheel cavity 20 in the shell 1. The semicircular annular sub-cavity 10 has a semicircular ridge at the center of the inner surface, and the cross section of the semicircular annular sub-cavity 10 is C-shaped. The semicircular annular sub-cavity 10 with a C-shaped cross section is wrapped around the outer periphery of the impeller wheel cavity 20 corresponding to the impeller blade 4 on the semicircle where the air inlet 8 and the exhaust port 9 of the impeller wheel cavity 20 are farthest apart. There are a plurality of inclined C-shaped spacers 22 in the semicircular annular sub-cavity 10. The inclined C-shaped spacers 22 are axially connected from the impeller wheel cavity 20 in the opposite direction of the impeller rotation direction with the line connecting the two ends of the C-shape as the axis. The exhaust port 8 side of the cavity 20 is inclined toward the air inlet 9 side of the impeller cavity, and the inclined C-shaped partition 22 divides the semicircular annular sub-cavity 10 into multiple sections of inclined C-shaped sub-cavities 10 from the air inlet 8 side of the impeller cavity 20 to the exhaust port 9 side of the impeller cavity 20. The inner side surfaces of the C-shaped ends of the inclined C-shaped sub-cavity 10 are connected with the two side surfaces of the impeller cavity 20 at the corresponding positions at the bottom of the impeller blades 4, and the inner side surface of the C-shaped middle of the inclined C-shaped sub-cavity 10 is connected with the impeller cavity 20 on the outer circular surface of the impeller cavity 20.

[0043] Basic working principle: When working, power is input through the wheel shaft 3 to drive the impeller to rotate, and the air in the atmosphere enters the impeller wheel cavity 20 into the air inlet 8 through the impeller wheel cavity 20 air inlet 12 on the shell 1. The gas at the air inlet 8 is referred to as the first gas here and first enters the impeller cavity 7 on both sides of the first impeller blade 18 at the air inlet 8. As the impeller rotates, the first gas at the air inlet 8 continues to enter the impeller cavity 7 on both sides of the impeller blade 18 that is subsequently transferred to. The first gas is pushed by the impeller in the impeller cavity 7 on both sides of the first impeller blade 18 to rotate in the impeller wheel cavity 20. The energy of the first gas rises rapidly. After the impeller adds energy, the first gas moves toward the outer circle of the impeller along the impeller blade 4 under the action of centrifugal force. When When passing through the first C-shaped sub-cavity 10, the gas is pushed into the first C-shaped sub-cavity 10 under the action of centrifugal force. The first gas in the impeller cavity 7 behind is also pushed into the first C-shaped sub-cavity 10 under the action of centrifugal force as the impeller rotates. The pressure of the first gas in the first C-shaped sub-cavity 10 increases rapidly. After the pressure increases, the first gas enters the two sides of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 along the forward-inclined partitions 22 on both sides of the first C-shaped sub-cavity 10. Because the first gas in the impeller cavity 7 moves toward the outer circle of the impeller under the action of centrifugal force and is pushed into the first C-shaped sub-cavity 10, the pressure in the impeller cavity 7 at the bottom of the impeller blade 4 is relatively low at this time. The first gas with relatively high pressure in the first C-shaped sub-cavity 10 passes through The inner sides of both ends of the C-shaped sub-cavity enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure. The first gas entering the impeller cavity 7 at the bottom of the impeller blade 4 rotates with the impeller again. After being energized by the impeller again, the first gas moves toward the outer circle of the impeller along the impeller blade 4 under the action of centrifugal force, and enters the second C-shaped sub-cavity 10 after passing through the second C-shaped sub-cavity 10. The first gases in the subsequent impeller cavities 7 are also energized by the impeller as the impeller rotates, and then enter the second C-shaped sub-cavity 10 successively. The pressure of the first gas in the second C-shaped sub-cavity 10 increases again. After the pressure continues to increase, the first gas is forced to enter the following diaphragm 22 tilted forward in the C-shaped sub-cavity 10 again due to the obstruction of the C-shaped diaphragm. The two sides of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure. The first gas entering the impeller cavity 7 at the bottom of the impeller blade 4 will rotate with the impeller for the third time. After being added energy by the impeller for the third time, the first gas also enters the third C-shaped sub-cavity 10 along the impeller blade 4 under the action of centrifugal force. As the impeller continues to rotate, the first gas will continuously rotate in and out of the impeller cavity 7 and the C-shaped sub-cavity 10 in a spiral shape. Each time the first gas enters the impeller cavity, energy is added by the impeller. When the first gas reaches the exhaust port 9 of the wheel cavity 20, it becomes a high-energy gas with higher density and pressure. The first gas that becomes a high-energy gas is finally discharged through the exhaust duct 13.It can be seen that during operation, the C-shaped sub-cavity 10 also has the functions of collecting, blocking, expanding, guiding and connecting the first gas. The first gas is blocked by the partition 22 in the C-shaped sub-cavity 10 and cannot move in the direction of rotation of the impeller. It is forced to move to both sides of the C-shaped sub-cavity 10 and re-enter the impeller cavity 7 to perform a forced circulation motion, which forcibly increases the number of cycles of the first gas in the rotation of the impeller, that is, it forcibly increases the number of times the first gas absorbs the impeller energy, and effectively increases the pressure of the gas output from the exhaust port 9.

[0044] Figure 5 , Figure 6 The third embodiment of the novel wheel-type compressor device is shown. It can be seen from the accompanying drawings that the novel wheel-type working device shown in this embodiment is mainly composed of a housing 1 and an impeller. The housing 1 has an insulation layer 23, and the insulation layer 23 has a heat-insulating material. The impeller is composed of a wheel body 2, a wheel shaft 3, and blades 4. The blades 4 are installed on the outer circumference of the wheel body 2. The blades 4 are separated by wheel pieces 18 in the middle. The wheel body 2 is equipped with a wheel shaft 3 in the center. The impeller is installed in the housing 1. The size of the impeller wheel cavity 20 matches the impeller, and the impeller maintains a small airtight gap with the inner wall of the wheel cavity 20, and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20. The wheel cavity 20 in the housing 1 has an air inlet 8 and an exhaust port 9, and the air inlet 8 and the exhaust port 9 are connected to the outside through the air inlet duct 12 and the exhaust duct 13 respectively. The semicircle farthest from the air inlet 8 and the exhaust port 9 of the wheel cavity 20 in the housing 1 is the outer circumference of the wheel cavity 20 corresponding to the impeller blade 4. There is a semicircular annular sub-cavity 10 on the surface, and the semicircular annular sub-cavity 10 communicates with the impeller wheel cavity 20 with the inner circular surface. The cross section of the semicircular annular sub-cavity 10 is a right-angle U-shaped wrap around the impeller wheel cavity 20. There are multiple right-angle U-shaped movable spacers 5 matching the right-angle U-shaped cross section in the semicircular annular sub-cavity 10. The right-angle U-shaped movable spacers 5 divide the semicircular annular sub-cavity into multiple right-angle U-shaped sub-cavities 10. When the impeller blades 4 are in the right-angle grooves of the right-angle U-shaped movable spacers 5, each right-angle U-shaped The auxiliary cavity 10 remains relatively sealed, and a movable shaft 6 is provided on the right-angled bottom edge of the right-angled U-shaped movable spacer 5. One end of the movable shaft 6 extends out of the shell 1 and is equipped with a regulating device 19. The regulating device 19 can control the inclination angle of the right-angled U-shaped movable spacer 5 in the semicircular annular auxiliary cavity 10 through the movable shaft 6. When the regulating device 19 tilts the two right-angled sides of the right-angled U-shaped movable spacer 5 along the rotation direction of the impeller through the movable shaft 6, the front and rear right-angled U-shaped auxiliary cavities 10 of the right-angled U-shaped movable spacer 5 are connected.

[0045] Basic working principle: When working, the power is input through the wheel shaft 3 to drive the impeller to rotate, and the air in the atmosphere enters the impeller wheel cavity 20 into the air inlet 8 through the impeller wheel cavity 20 air inlet 12 on the shell 1. The gas at the air inlet 8 is referred to as the first gas here. It first enters the impeller cavity 7 on both sides of the first impeller blade 18 at the air inlet 8. As the impeller rotates, the first gas at the air inlet 8 continues to enter the impeller cavity 7 on both sides of the impeller blade 18 that is subsequently transferred to. The first gas is pushed by the impeller to rotate in the impeller cavity 7 on both sides of the first impeller blade 18. The energy of the first gas rises rapidly. After the energy is applied by the impeller, the first gas moves toward the outer circle of the impeller along the impeller blade 4 under the action of centrifugal force and enters the first right-angle U-shaped auxiliary cavity 1 0, the first gas in the following impeller cavities 7 also continues to enter the first right-angle U-shaped sub-cavity 10 with the rotation of the impeller, and the pressure of the first gas in the first right-angle U-shaped sub-cavity 10 increases rapidly. The first gas after the pressure increase is blocked by the right-angle U-shaped movable partition 5 and is forced to follow the two right-angled sides of the right-angle U-shaped movable partition 5 forward and inward to enter the two sides of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 and enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure again. The first gas entering the impeller cavity 7 at the bottom of the impeller blade 4 rotates again with the impeller. After being energized by the impeller again, the first gas enters the next right-angle U-shaped sub-cavity 10 along the impeller blade 4 under the action of centrifugal force. Here, it is called the second right-angle In the U-shaped sub-cavity 10, the first gases in the following impeller cavities 7 are also given energy by the impeller as the impeller rotates, and then enter the second right-angled U-shaped sub-cavity 10 successively. The pressure of the first gas in the second right-angled U-shaped sub-cavity 10 increases again. After the pressure continues to increase, the first gas is again blocked by the right-angled U-shaped movable partition 5 and is forced to follow the two right-angled sides of the right-angled U-shaped movable partition 5 forward and inward to enter the two sides of the wheel cavity 20 corresponding to the bottom of the impeller blade 4 and enter the impeller cavity 7 at the bottom of the impeller blade 4 with relatively low pressure again. The first gas entering the bottom of the impeller cavity 7 will rotate with the impeller for the third time. After being given energy by the impeller for the third time, the first gas also enters the third right-angled U-shaped sub-cavity 10 again along the impeller blade 4 under the action of centrifugal force. In the right-angled U-shaped sub-cavity 10, as the impeller continues to rotate, the first gas will spirally rotate and move forward in the impeller cavity 7 and the right-angled U-shaped sub-cavity 10. Each time the first gas enters the impeller cavity, the impeller will add energy to it. When the first gas reaches the exhaust port 9 of the wheel cavity 20, it becomes a high-energy gas with high density and pressure. The first gas that becomes a high-energy gas is finally discharged through the exhaust duct 13. When the pressure of the first gas in a right-angled U-shaped sub-cavity 10 reaches the preset pressure value of the regulating device 19, the right-angled U-shaped movable partition 5 is tilted in the direction of rotation of the impeller under the control of the regulating device 19, so that the two adjacent right-angled U-shaped sub-cavities form a through state, and the first gas directly crosses the right-angled U-shaped movable partition and enters the next right-angled U-shaped sub-cavity 10.When the pressure of the first gas in each right-angled U-shaped sub-cavity 10 reaches the preset pressure value of the regulating device 19, each right-angled U-shaped movable baffle 5 is tilted in the direction of rotation of the impeller under the control of the regulating device 19, so that each right-angled U-shaped sub-cavity 10 is connected, and the first gas crosses each right-angled U-shaped movable baffle 5 and directly enters the exhaust port 9 of the wheel cavity 20 for discharge. It can be seen that during operation, the right-angled U-shaped sub-cavity 10 also has the functions of storing, blocking, expanding pressure, guiding and connecting the first gas. The first gas is blocked by the right-angled U-shaped movable baffle 5 in the right-angled U-shaped sub-cavity 10 and cannot move freely in the direction of rotation of the impeller. It can only be forced to move to both sides of the right-angled U-shaped sub-cavity 10 and re-enter the impeller cavity 7 for forced circulation motion, which forcibly increases the number of cycles of the first gas in the rotation of the impeller, that is, it forcibly increases the number of times the first gas absorbs impeller energy, effectively improving the output gas from the exhaust port 9 In addition, when the pressure of the first gas in the previous right-angled U-shaped sub-chamber 10 reaches the preset pressure value of the regulating device 19, the right-angled U-shaped movable baffle 5 is tilted in the direction of impeller rotation under the control of the regulating device 19, so that the two adjacent right-angled U-shaped sub-chambers form a through state, and the first gas can directly cross the right-angled U-shaped movable baffle to enter the next right-angled U-shaped sub-chamber 10. Similarly, when the pressure of the first gas in each right-angled U-shaped sub-chamber 10 reaches the preset pressure value of the regulating device 19 at the same time, each right-angled U-shaped movable baffle 5 is controlled by the regulating device 19 to tilt in the direction of impeller rotation, so that each right-angled U-shaped sub-chamber 10 is through, and the first gas directly crosses each right-angled U-shaped movable baffle 5 to enter the exhaust port 9 of the wheel chamber 20 and is discharged. The variable right-angled U-shaped movable baffle makes the output compressed gas pressure adjustable, which reduces the resistance to the rotation of the impeller, increases the gas output, and improves the gas compression efficiency.

[0046] Figure 7 , Figure 8 , Fig. 9 , Fig.10The fourth embodiment of the novel wheel-type power device is shown. It can be seen from the accompanying drawings that the novel wheel-type power device shown in this embodiment is mainly composed of a housing 1 and an impeller. A boost impeller and a compressor impeller are installed together on a wheel shaft 3 in the housing 1. The boost impeller is composed of a wheel body 2" and blades 4". The blades 4" are radially installed on the side circumference of the wheel body 2". The compressor impeller is composed of a wheel body 2 and blades 4. The blades 4 are radially installed on the outer circumference of the wheel body 2. The boost impeller is installed in the housing 1. The size of the boost impeller wheel cavity 20" matches that of the boost impeller. The boost impeller maintains a small airtight gap with the inner wall of the wheel cavity 20", and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20". An air inlet 8" and an exhaust port 9" are provided on the inner wheel cavity 20" of the housing 1. The air inlet 8" is located at the center of the wheel cavity 20" on the side of the blade 4". The compressor impeller is installed in the impeller wheel cavity 20 of the housing 1. The size of the impeller wheel cavity 20 matches that of the compressor impeller. The compressor impeller maintains a small airtight gap with the inner wall of the wheel cavity 20, and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20". Maintain a small airtight gap, try to keep it sealed but not in contact with the inner wall of the wheel cavity 20, the outer circumference of the wheel cavity 20 in the shell 1 is provided with an air inlet 8 and an exhaust port 9, the air inlet 8 is communicated with the exhaust port 9", the exhaust port 9 is communicated with the outside through the exhaust duct 13, the outer circumference of the wheel cavity 20" in the shell 1 is provided with a semicircular arc-shaped sub-cavity 10", the semicircular arc-shaped sub-cavity 10" is communicated with the wheel cavity 20" with the inner arc surface, the thickest end of the semicircular arc-shaped sub-cavity 10" is communicated with the exhaust port 9", and the air inlet 8 and the exhaust port 9 in the wheel cavity 20 in the shell 1 are farthest apart. A semicircular annular sub-cavity 10 is provided on the periphery of the semicircular wheel cavity 20 corresponding to the impeller blade 4. The cross section of the semicircular annular sub-cavity 10 is L-shaped. The two inner surfaces of the semicircular annular sub-cavity 10 are connected to the wheel cavity 20 at two L-shaped right angles. The semicircular annular sub-cavity 10 is provided with a plurality of L-shaped spacers 22 matching the cross section of the semicircular annular sub-cavity 10. The L-shaped spacers 22 divide the semicircular sub-cavity 10 into a plurality of L-shaped sub-cavities 10. When the blade 4 is within the right angle of the L-shaped spacer 22, the front and rear sub-cavities 10 separated by the L-shaped spacer 22 remain relatively sealed.

[0047] Basic working principle: During operation, power is input through the wheel shaft 3 to simultaneously drive the compressor impeller and the boost impeller to rotate, and the air in the atmosphere enters the boost impeller cavity 20" from the boost impeller cavity 20" through the air inlet 8". The gas at the air inlet 8" is referred to here as the first gas and first enters the first impeller cavity 7" of the boost impeller. As the impeller rotates, the first gas at the air inlet 8" continues to enter the boost impeller cavity 7". The first gas is pushed by the impeller to rotate in the boost impeller cavity 7", and the kinetic energy of the first gas rises rapidly. After the boost impeller applies energy, the first gas moves toward the outer circle of the boost impeller along the impeller blades 4" under the action of centrifugal force and enters the semicircular arc-shaped secondary cavity 10". The first gas in the boost impeller cavity 7" As the impeller rotates, the first gas continues to enter the semicircular arc-shaped sub-cavity 10", and the pressure of the first gas in the semicircular arc-shaped sub-cavity 10" increases rapidly. After the pressure increases, the first gas enters the compressor impeller inlet 8 through the exhaust port 9". As the impeller rotates, the first gas at the inlet 8 enters the compressor impeller cavity 7 with relatively low pressure. The first gas in the compressor impeller cavity 7 is pushed by the compressor impeller to rotate, and the kinetic energy of the first gas increases again. After the first gas is added with energy by the compressor impeller, it moves toward the outer circle of the compressor impeller along the impeller blades 4 under the action of centrifugal force and enters the first L-shaped sub-cavity 10 separated by the L-shaped partition. The first gas in the subsequent compressor impeller cavities 7 also continues to enter the first L-shaped sub-cavity as the impeller rotates. In the cavity 10, the pressure of the first gas in the first L-shaped sub-cavity 10 increases rapidly. After the pressure increases, the first gas is blocked by the L-shaped partition and is forced to go inward along the L-shaped partition into the side of the wheel cavity 20 corresponding to the bottom of the compressor impeller blade 4 and enter the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the impeller cavity 7 at the bottom of the compressor impeller blade 4 rotates with the impeller again. After the first gas is energized by the impeller again, it enters the next L-shaped sub-cavity 10 along the compressor impeller blade 4 under the action of centrifugal force. Here it is called the second L-shaped sub-cavity 10. The first gas in each subsequent compressor impeller cavity 7 is also energized by the impeller as the impeller rotates and successively enters the second L-shaped In the auxiliary chamber 10, the pressure of the first gas in the second L-shaped auxiliary chamber 10 increases again. After the pressure continues to increase, the first gas is blocked by the L-shaped partition again and is forced to go inward along the L-shaped partition into the side of the wheel chamber 20 corresponding to the bottom of the compressor impeller blade 4 and enter the relatively low-pressure impeller cavity 7 at the bottom of the compressor impeller blade 4 again. The first gas entering the impeller cavity 7 at the bottom of the compressor impeller blade 4 will rotate with the impeller for the third time. After the first gas is given energy by the impeller for the third time, it will enter the third L-shaped auxiliary chamber 10 again along the compressor impeller blade 4 under the action of centrifugal force. With the continuous rotation of the compressor impeller, the first gas will make continuous in and out spiral motions in the compressor impeller cavity 7 and the L-shaped auxiliary chamber 10 in a spiral shape.Each time the first gas enters the compressor impeller cavity 7, the compressor impeller applies energy to the first gas. After being applied energy by the compressor impeller for multiple times, the first gas becomes a high-energy gas with relatively high density and pressure when it reaches the exhaust port 9 of the wheel cavity 20. The first gas that becomes a high-energy gas is finally discharged through the exhaust duct 13. It can be seen that since the air inlet 8" of the booster impeller is at the center of the booster impeller cavity 20", each booster impeller cavity 7" can inhale gas through the air inlet 8" at the same time during operation, so the intake negative pressure generated by the air inlet 8" will be relatively low. Therefore, the booster impeller can provide a relatively high intake pressure to the compressor impeller air inlet 8 to solve the problem of insufficient air intake of the compressor impeller. The L-shaped sub-cavity 10 has the functions of storing, expanding, connecting and changing the running trajectory of the compressed gas for the first gas. The first gas is forced to move inwardly toward the centripetal end along the L-shaped diaphragm 22 under the obstruction of the L-shaped diaphragm 22 and re-enter the compressor impeller cavity 7 for passive circulation, so that the first gas, i.e., the compressed gas, can absorb the energy of the compressor impeller multiple times as it rotates with the compressor impeller, effectively increasing the pressure of the compressed gas output from the exhaust port 9.

[0048] Fig.11 , Fig.12 , Fig.13 , Fig.14The fifth embodiment of the novel wheel-type working device is shown. It can be seen from the accompanying drawings that the novel wheel-type working device shown in this embodiment is mainly composed of a housing 1 and an impeller. The housing 1 has a thermal insulation layer 16, and the thermal insulation layer 16 has thermal insulation material. There are two compressor impellers in the housing 1 installed together on a wheel shaft 3. The first compressor impeller is referred to as the compressor impeller here and is installed in the compressor impeller wheel cavity 20. The second compressor impeller is referred to as the previous impeller here and is installed in the previous impeller wheel cavity 20'. The compressor impeller is composed of a wheel body 2 and blades 4. The blades 4 are radially installed on the outer circumferential surface of the wheel body 2. One side of the blades 4 is blocked by a wheel sheet 18. The previous impeller is composed of a wheel body 2' and blades 4'. The blades 4' are radially mounted on the outer circumference of the wheel body 2', and the other side of the blades 4' is blocked by the wheel blades 18'. The size of the compressor impeller cavity 20 matches that of the compressor impeller. The compressor impeller maintains a small airtight gap with the inner wall of the cavity 20, and tries to keep it sealed but does not contact the inner wall of the cavity 20. An air inlet 8 and an exhaust port 9 are provided on the cavity 20 in the housing 1. The previous impeller is mounted in the cavity 20' of the previous impeller in the housing 1. The size of the cavity 20' of the previous impeller matches that of the previous impeller. The previous impeller maintains a small airtight gap with the inner wall of the cavity 20', and tries to keep it sealed but does not contact the inner wall of the cavity 20'. An air inlet 8' and an exhaust port 9' are provided on the outer circumference of the cavity 20' in the housing 1. The preceding impeller air inlet 8' is communicated with the outside through an air inlet 12', the compressor impeller air inlet 8 is communicated with the preceding impeller exhaust port 9', the compressor impeller exhaust port 9 is communicated with the outside through an exhaust port 13, the compressor impeller wheel cavity 20 in the housing 1 has a semicircular annular sub-cavity 10 on the periphery of the wheel cavity 20 corresponding to the impeller blades 4, the semicircular annular sub-cavity 10 has a right-angle L-shaped cross section, the semicircular annular sub-cavity 10 is communicated with the wheel cavity 20 through two right-angled inner surfaces of the right-angle L-shape, the L-shaped right angle of the semicircular annular sub-cavity 10 corresponds to the wheel blade 18 on the impeller, and the semicircular annular sub-cavity 10 has a plurality of right-angle L-shaped movable partitions 5 matching the cross section of the semicircular annular sub-cavity 10, The right-angled L-shaped movable partition 5 divides the semicircular annular sub-cavity 10 into a plurality of right-angled L-shaped sub-cavities 10. When the blade 4 is in the right angle of the right-angled L-shaped partition 5, the front and rear right-angled L-shaped sub-cavities 10 separated by the right-angled L-shaped partition 5 remain relatively sealed. The outer periphery of the semicircular impeller cavity 20' corresponding to the impeller blade 4' of the semicircular front impeller cavity 20' in the housing 1 where the air inlet 8' and the exhaust port 9' are farthest apart is provided with a semicircular annular sub-cavity 10'. The cross section of the semicircular annular sub-cavity 10' is in a reverse right-angled L shape. The semicircular annular sub-cavity 10' is connected to the cavity 20' through the two right-angled inner surfaces of the reverse right-angled L shape. The right angle of the reverse right-angled L shape of the semicircular annular sub-cavity 10' corresponds exactly to the blade 18' on the front impeller.The semicircular annular sub-cavity 10' has a plurality of reverse right-angle L-shaped movable baffles 5' that match the cross section of the semicircular annular sub-cavity 10'. The reverse right-angle L-shaped movable baffles 5' divide the semicircular annular sub-cavity 10' into a plurality of reverse right-angle L-shaped sub-cavities 10'. When the blade 4' is in the right angle of the reverse right-angle L-shaped movable baffle 5', the front and rear sub-cavities 10' separated by the reverse right-angle L-shaped baffle 5' remain relatively sealed. The right-angle L-shaped movable baffle 5 in the semicircular annular sub-cavity 10 of the compressor impeller has a movable shaft 6 on the centrifugal right-angle edge. One end of the movable shaft 6 extends out of the housing 1 and is installed with a control device 19. The reverse right-angle L-shaped movable baffle 5' in the semicircular annular sub-cavity 10' of the previous impeller has a movable shaft 6' on the centrifugal right-angle edge. The other end of the movable shaft 6' extends out of the housing 1 and is installed with a control device 19'.

[0049] Basic working principle: During operation, the power input through the wheel shaft 3 drives the compressor impeller and the previous impeller to rotate, and the gas in the atmosphere enters the previous impeller cavity 20' air inlet 8' through the previous impeller cavity 20' air inlet 12' on the housing 1. The gas at the air inlet 8' is referred to as the first gas. It first enters the impeller cavity 7' closest to the air inlet 8', which is referred to as the first impeller cavity 7'. As the previous impeller rotates, the first gas at the air inlet 8' continues to enter the subsequent impeller cavities 7'. The first gas is pushed by the previous impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas rises rapidly. After being added with energy by the previous impeller, the first gas moves toward the impeller along the impeller blades 4' under the action of centrifugal force. The first gas in the following impeller cavities 7' also continues to enter the first reverse right-angled L-shaped sub-cavity 10' along with the rotation of the previous impeller. The pressure of the first gas in the first reverse right-angled L-shaped sub-cavity 10' increases rapidly. The first gas after the pressure increase is blocked by the reverse right-angled L-shaped movable diaphragm 5' and is forced to move forward and inward along the right-angled side of the reverse right-angled L-shaped movable diaphragm 5' to enter the side of the previous impeller cavity 20' corresponding to the bottom of the previous impeller blade 4' and enter the previous impeller cavity 7' at the bottom of the previous impeller blade 4' where the pressure is relatively low again. The first gas entering the previous impeller cavity 7' at the bottom of the previous impeller blade 4' rotates with the previous impeller again. The first gas after being energized by the previous impeller again enters the next reverse right-angled L-shaped sub-chamber 10', which is referred to as the second reverse right-angled L-shaped sub-chamber 10', along the previous impeller blade 4' under the action of centrifugal force. The first gas in each of the previous impeller cavities 7' is also energized by the previous impeller as the previous impeller rotates and successively enters the second reverse right-angled L-shaped sub-chamber 10'. The pressure of the first gas in the second reverse right-angled L-shaped sub-chamber 10' increases again. After the pressure continues to increase, the first gas is again blocked by the reverse right-angled L-shaped movable diaphragm 5' and is forced to enter the side of the previous impeller wheel chamber 20' corresponding to the bottom of the previous impeller blade 4' forward and inward along the right-angled side of the reverse right-angled L-shaped movable diaphragm 5' and then The first gas enters the previous impeller cavity 7' at the bottom of the previous impeller blade 4' with a relatively low pressure for the first time. The first gas entering the bottom of the previous impeller cavity 7' will rotate for the third time along with the previous impeller. After being added energy by the previous impeller for the third time, the first gas will enter the third reverse right-angle L-shaped sub-cavity 10' again along the previous impeller blade 4' under the action of centrifugal force. With the continuous rotation of the previous impeller, the first gas will continuously rotate and move forward in a spiral shape in the previous impeller cavity 7' and the reverse right-angle L-shaped sub-cavity 10'. Each time the first gas enters the previous impeller cavity 7', the previous impeller will add energy once. When the first gas reaches the exhaust port 9' of the previous impeller cavity 20', it becomes a high-energy gas with high density and pressure.The first gas that has become high-energy gas enters the compressor impeller inlet 8 through the exhaust port 9'. When the pressure of the first gas in a reverse right-angle L-shaped sub-cavity 10' reaches the preset pressure value of the control device 19', the reverse right-angle L-shaped movable baffle 5' is tilted in the rotation direction of the front impeller under the control of the control device 19', so that the two adjacent reverse right-angle L-shaped sub-cavities are connected, and the first gas directly crosses the reverse right-angle L-shaped movable baffle 5' and enters the next reverse right-angle L-shaped sub-cavity 10'. When the pressure of the first gas in each reverse right-angle L-shaped sub-cavity 10' reaches the preset pressure value of the control device 19' at the same time, each reverse right-angle L-shaped movable baffle 5' is tilted in the rotation direction of the front impeller under the control of the control device 19'. Each reverse right-angle L-shaped sub-cavity 10' is connected at the same time, and the first gas directly crosses each reverse right-angle L-shaped movable partition 5' and enters the air inlet 8 of the compressor impeller cavity 20. The high-energy gas at the air inlet 8 continues to be referred to as the first gas here and first enters the impeller cavity 7 closest to the air inlet 8, which is referred to as the first impeller cavity 7 here. As the compressor impeller rotates, the first gas continues to enter the subsequent impeller cavities 7. The first gas is pushed by the compressor impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas rises rapidly. After the compressor impeller adds energy, the first gas moves toward the outer circle of the compressor impeller along the compressor impeller blades 4 under the action of centrifugal force and enters the first right-angle L-shaped sub-cavity 10, and then the subsequent impeller cavities The first gas in 7 also continues to enter the first right-angled L-shaped sub-cavity 10 as the compressor impeller rotates. The pressure of the first gas in the first right-angled L-shaped sub-cavity 10 increases rapidly. The first gas after the pressure increase is blocked by the right-angled L-shaped movable baffle 5 and is forced to enter the side of the compressor wheel cavity 20 corresponding to the bottom of the compressor impeller blade 4 along the right-angled side of the right-angled L-shaped movable baffle 5 forward and inward and enter the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 rotates again with the compressor impeller. After being given energy by the compressor impeller again, the first gas enters the next compressor wheel cavity 20 along the compressor impeller blade 4 under the action of centrifugal force. The right-angled L-shaped sub-cavity 10 is referred to as the second right-angled L-shaped sub-cavity 10 here. The first gas in each subsequent compressor impeller cavity 7 is also given energy by the compressor impeller as the compressor impeller rotates and then enters the second right-angled L-shaped sub-cavity 10 successively. The pressure of the first gas in the second right-angled L-shaped sub-cavity 10 increases again. After the pressure continues to increase, the first gas is again blocked by the right-angled L-shaped movable partition 5 and is forced to follow the right-angled side of the right-angled L-shaped movable partition 5 forward and inward to enter the side of the compressor impeller cavity 20 corresponding to the bottom of the compressor impeller blade 4 and enter the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the bottom of the compressor impeller cavity 7 will rotate for the third time with the compressor impeller.After being energized by the compressor impeller for the third time, the first gas will enter the third right-angled L-shaped sub-cavity 10 again along the compressor impeller blades 4 under the action of centrifugal force. As the compressor impeller continues to rotate, the first gas will continuously rotate and move forward in a spiral shape in the compressor impeller cavity 7 and the right-angled L-shaped sub-cavity 10. Each time the first gas enters the compressor impeller cavity 7, the compressor impeller will impart energy to it once. When the first gas reaches the exhaust port 9 of the compressor impeller cavity 20, it becomes a high-pressure energy gas with higher density and pressure. The first gas, which has become a high-pressure energy gas, enters the exhaust duct 13 through the exhaust port 9 and is discharged. When a When the pressure of the first gas in the right-angled L-shaped sub-cavity 10 reaches the preset pressure value of the regulating device 19, the right-angled L-shaped movable diaphragm 5 is tilted in the rotation direction of the compressor impeller under the control of the regulating device 19, so that the two adjacent right-angled L-shaped sub-cavities are connected, and the first gas can directly cross the right-angled L-shaped movable diaphragm 5 into the next right-angled L-shaped sub-cavity 10. When the first gas pressure in each right-angled L-shaped sub-cavity 10 reaches the preset pressure value of the regulating device 19 at the same time, each right-angled L-shaped movable diaphragm 5 is tilted in the rotation direction of the compressor impeller under the control of the regulating device 19, and each right-angled L-shaped sub-cavity 10 is connected at the same time, and the first gas The gas directly crosses the right-angle L-shaped movable baffles 5 and enters the exhaust port 9 of the compressor impeller chamber 20 and is discharged through the exhaust duct 13. It can be seen that during operation, the reverse right-angle L-shaped sub-cavity 10′ and the right-angle L-shaped sub-cavity 10 also have the functions of storing, blocking, expanding, guiding and connecting the first gas. The first gas is blocked by the reverse right-angle L-shaped movable baffles 5′ and the right-angle L-shaped movable baffles 5 in the reverse right-angle L-shaped sub-cavity 10′ and the right-angle L-shaped sub-cavity 10, and cannot freely move in the direction of rotation of the previous impeller and the compressor impeller. It can only be forced to move to the side of the right-angle L-shaped sub-cavity 10′ and the right-angle L-shaped sub-cavity 10 and then The first gas enters the previous impeller cavity 7' and the compressor impeller cavity 7 for a boosted circulation motion, forcing the number of cycles of the first gas in the impeller rotation to increase, that is, forcing the number of times the first gas absorbs the impeller energy to increase. The exhaust port 9' of the previous impeller is connected to the air inlet 8 of the compressor impeller, which doubles the number of cycles of the first gas in the impeller, effectively increasing the pressure of the gas output from the exhaust port 9. In addition, the variable reverse right-angle L-shaped movable diaphragm 5' and the right-angle L-shaped movable diaphragm 5 make the output compressed gas pressure adjustable, which reduces the resistance to the impeller rotation, increases the gas output, and improves the compression efficiency.

[0050] Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19The sixth embodiment of the novel wheel-type working device is shown. It can be seen from the accompanying drawings that the novel wheel-type working device shown in this embodiment is mainly composed of a housing 1 and an impeller. There are three impellers in the housing 1 and are installed together on a wheel shaft 3. The three impellers are the first impeller, which is called the compressor impeller, the second impeller, which is called the front impeller, and the third impeller, which is the frontmost impeller, which is called the booster impeller. The compressor impeller is installed in the compressor impeller wheel cavity 20, the front impeller is installed in the front impeller wheel cavity 20', and the booster impeller is installed in the booster impeller wheel cavity 20". The compressor impeller is composed of a wheel body 2 and blades 4. The blades 4 are radially installed on the outer circumferential surface of the wheel body 2. The front impeller is composed of the wheel body 2', The booster impeller is composed of a wheel body 2" and blades 4', and the blades 4' are radially mounted on the outer circumference of the wheel body 2'. The booster impeller is composed of a wheel body 2'' and blades 4''. The blades 4'' are radially mounted on the side circumference of the wheel body 2''. The size of the booster impeller wheel cavity 20'' matches the booster impeller. The booster impeller maintains a small airtight gap with the inner wall of the wheel cavity 20'', and tries to keep it sealed but does not contact the inner wall of the wheel cavity 20''. The booster impeller wheel cavity 20'' in the housing 1 has an air inlet 8'' and an exhaust port 9''. The air inlet 8'' is connected to the atmosphere at the center of the wheel cavity 20'' on the side of the blade 4''. The booster impeller wheel cavity 20'' in the housing 1 has a semicircular arc-shaped auxiliary cavity 10'' on the outer circumference, and the semicircular arc-shaped auxiliary cavity 10'' is connected to the wheel cavity 20'' with the inner arc surface. The thickest end of the semicircular arc-shaped secondary cavity 10" is connected to the exhaust port 9", and the compressor impeller is installed in the impeller cavity 20 in the shell 1. The size of the compressor impeller cavity 20 matches the compressor impeller. The compressor impeller maintains a small airtight gap with the inner cavity wall of the cavity 20, and tries to keep it sealed but does not contact the inner cavity wall of the cavity 20. The outer circumference of the compressor impeller cavity 20 in the shell 1 is provided with an air inlet 8 and an exhaust port 9. The previous impeller is installed in the previous impeller cavity 20' in the shell 1. The size of the previous impeller cavity 20' matches the previous impeller. The previous impeller maintains a small airtight gap with the inner cavity wall of the cavity 20', and tries to keep it sealed but does not contact the inner cavity wall of the cavity 20'. The outer circumference of the previous impeller cavity 20' in the shell 1 is provided with an air inlet The impeller inlet 8' and the exhaust port 9' are connected, the impeller exhaust port 9' is connected with the impeller inlet 8', the impeller exhaust port 9' is connected with the compressor impeller inlet 8, the compressor impeller exhaust port 9 is connected with the outside through the exhaust duct 13, the compressor impeller wheel cavity 20 in the shell 1 has a semicircular annular sub-cavity 10 on the periphery of the wheel cavity 20 corresponding to the impeller blade 4, the cross section of the semicircular annular sub-cavity 10 is L-shaped, the semicircular annular sub-cavity 10 is connected with the wheel cavity 20 through the two inner angle surfaces of the L-shape, the semicircular annular sub-cavity 10 has a plurality of L-shaped spacers 22 matching the L-shaped cross section of the semicircular annular sub-cavity 10, the L-shaped spacers 22 divide the semicircular annular sub-cavity 10 into a plurality of L-shaped sub-cavities 10,When the blade 4 is in the corner of the L-shaped partition 22, the front and rear L-shaped sub-cavities 10 separated by the L-shaped partition 22 remain relatively sealed. The semicircular annular sub-cavity 10' corresponding to the impeller blade 4' is provided on the periphery of the semicircular annular sub-cavity 10' of the front impeller wheel cavity 20' in the housing 1, where the air inlet 8' and the exhaust port 9' are farthest apart. The cross section of the semicircular annular sub-cavity 10' is in a reverse L shape. The semicircular annular sub-cavity 10' is connected to the wheel cavity 20' through the two inner angle surfaces of the reverse L shape. The semicircular annular sub-cavity 10' has a plurality of reverse L-shaped partitions 22' matching the reverse L-shaped cross section of the semicircular annular sub-cavity 10'. The reverse L-shaped partition 22' divides the semicircular annular sub-cavity 10' into a plurality of reverse L-shaped sub-cavities 10'. When the blade 4' is in the corner of the reverse L-shaped partition 22', the front and rear sub-cavities 10' separated by the reverse L-shaped partition 22' remain relatively sealed.

[0051] Basic working principle: During operation, the power input through the wheel shaft 3 drives the compressor impeller, the previous impeller and the boost impeller to rotate together, and the gas in the atmosphere enters the boost impeller cavity 20" from the boost impeller cavity 20" through the air inlet 8". The gas at the air inlet 8" is referred to as the first gas here and first enters the first impeller cavity 7" of the boost impeller. As the impeller rotates, the first gas at the air inlet 8" continues to enter the boost impeller cavity 7". The first gas is pushed by the impeller to rotate in the boost impeller cavity 7", and the kinetic energy of the first gas increases rapidly. After the boost impeller applies energy, the first gas moves toward the outer circle of the boost impeller along the impeller blades 4" under the action of centrifugal force and enters the semicircular arc-shaped secondary cavity 10", and then the gas in the boost impeller cavity 7" The first gas also continues to enter the semicircular arc-shaped sub-cavity 10" as the impeller rotates. The pressure of the first gas in the semicircular arc-shaped sub-cavity 10" increases rapidly. The first gas after the pressure increase enters the air inlet 8' of the previous impeller cavity 20' through the exhaust port 9". The first gas at the air inlet 8' first enters the impeller cavity 7' closest to the air inlet 8', which is referred to as the first impeller cavity 7' here. As the previous impeller rotates, the first gas at the air inlet 8' continues to enter the subsequent impeller cavities 7'. The first gas is pushed by the previous impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas increases rapidly. After the energy is applied by the previous impeller, the first gas moves toward the outer circle of the impeller along the impeller blades 4' under the action of centrifugal force. The first gas in the following impeller cavities 7' also continues to enter the first reverse L-shaped sub-cavity 10' with the rotation of the previous impeller. The pressure of the first gas in the first reverse L-shaped sub-cavity 10' increases rapidly. The first gas after the pressure increase is blocked by the reverse L-shaped baffle 22' and is forced to follow the centripetal edge of the reverse L-shaped baffle 22' to enter the side of the previous impeller cavity 20' corresponding to the bottom of the previous impeller blade 4' and enter the previous impeller cavity 7' at the bottom of the previous impeller blade 4' where the pressure is relatively low again. The first gas entering the previous impeller cavity 7' at the bottom of the previous impeller blade 4' rotates again with the previous impeller and is energized by the previous impeller again. The first gas again enters the next reverse L-shaped sub-cavity 10' under the action of centrifugal force along the previous impeller blade 4', which is referred to as the second reverse L-shaped sub-cavity 10'. The first gas in each of the previous impeller cavities 7' is also added with energy by the previous impeller as the previous impeller rotates and successively enters the second reverse L-shaped sub-cavity 10'. The pressure of the first gas in the second reverse L-shaped sub-cavity 10' increases again. After the pressure continues to increase, the first gas is again blocked by the reverse L-shaped partition 22' and is forced to follow the centripetal edge of the reverse L-shaped partition 22' to enter the side of the previous impeller cavity 20' corresponding to the bottom of the previous impeller blade 4' and enter the previous impeller cavity 7' at the bottom of the previous impeller blade 4' where the pressure is relatively low.The first gas that has entered the bottom of the previous impeller cavity 7′ will rotate for the third time along with the previous impeller. After being added energy by the previous impeller for the third time, the first gas will enter the third reverse L-shaped sub-cavity 10′ again along the previous impeller blades 4′ under the action of centrifugal force. As the previous impeller continues to rotate, the first gas will continuously rotate and move forward in a spiral shape in the previous impeller cavity 7′ and the reverse L-shaped sub-cavity 10′. Each time the first gas enters the previous impeller cavity 7′, it will be added energy by the previous impeller. When the first gas reaches the exhaust port 9′ of the previous impeller cavity 20′, it becomes a high-energy gas with higher density and pressure. The first gas that has become a high-energy gas enters the compressor impeller air inlet 8 through the exhaust port 9′. The air inlet 8 The high-energy gas at the position is continued to be referred to as the first gas here and first enters the impeller cavity 7 closest to the air inlet 8, which is referred to as the first impeller cavity 7 here. As the compressor impeller rotates, the first gas continues to enter the impeller cavities 7 that are subsequently transferred to. The first gas is pushed by the compressor impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas increases rapidly. After the compressor impeller adds energy, the first gas moves toward the outer circle of the compressor impeller along the compressor impeller blades 4 under the action of centrifugal force and enters the first L-shaped sub-cavity 10. The first gases in the subsequent impeller cavities 7 also continue to enter the first L-shaped sub-cavity 10 as the compressor impeller rotates. The pressure of the first gas in the first L-shaped sub-cavity 10 increases rapidly. The first gas after the pressure increase is Due to the obstruction of the L-shaped partition 22, it is forced to follow the centripetal edge of the L-shaped partition 22 forward and inward into the side of the compressor wheel cavity 20 corresponding to the bottom of the compressor impeller blade 4 and enter the compressor wheel cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the compressor wheel cavity 7 at the bottom of the compressor impeller blade 4 rotates again with the compressor impeller. After being energized by the compressor impeller again, the first gas enters the next L-shaped sub-cavity 10 along the compressor impeller blade 4 under the action of centrifugal force, which is referred to as the second L-shaped sub-cavity 10. The first gas in each subsequent compressor wheel cavity 7 is also energized by the compressor impeller as the compressor impeller rotates and successively enters the second L-shaped sub-cavity 10. The second L-shaped sub-cavity 1 0, the pressure of the first gas in the compressor impeller cavity 20 increases again. After the pressure continues to increase, the first gas is blocked by the L-shaped partition 22 again and is forced to follow the centripetal edge of the L-shaped partition 22 to enter the side of the compressor impeller cavity 20 corresponding to the bottom of the compressor impeller blade 4 forward and inward, and enter the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the bottom of the compressor impeller cavity 7 will rotate with the compressor impeller for the third time. After the compressor impeller applies energy for the third time, the first gas will follow the compressor impeller blade 4 to enter the third right-angle L-shaped sub-cavity 10 again under the action of centrifugal force. With the continuous rotation of the compressor impeller, the first gas will continuously rotate and move forward in a spiral shape in the compressor impeller cavity 7 and the L-shaped sub-cavity 10.Each time the first gas enters the compressor impeller cavity 7, the compressor impeller applies energy once. When the first gas reaches the exhaust port 9 of the compressor impeller cavity 20, it becomes a high-pressure energy gas with higher density and pressure. The first gas, which has become a high-pressure energy gas, enters the exhaust duct 13 through the exhaust port 9 and is discharged. It can be seen during operation that since the air inlet 8" of the boost impeller is at the center of the boost impeller cavity 20", each boost impeller cavity 7" can simultaneously inhale gas through the air inlet 8" during operation, so the boost impeller can provide a relatively high intake pressure to the previous impeller air inlet 8', and the previous impeller can provide a relatively high intake pressure to the compressor impeller air inlet 8, thereby solving the problem of insufficient air intake. The reverse L-shaped sub-cavity 10' of the previous impeller and the L-shaped sub-cavity 10 of the compressor impeller also have the functions of storing, blocking, expanding and guiding the first gas. , the first gas is blocked by the reverse L-shaped diaphragm 22' and the L-shaped diaphragm 22 during operation, and cannot freely move forward in the direction of rotation of the previous impeller and the compressor impeller. It can only be forced to move to the side of the reverse L-shaped sub-cavity 10' and the L-shaped sub-cavity 10 and re-enter the previous impeller cavity 7' and the compressor impeller cavity 7 to perform a forced circulation movement, which forcibly increases the number of cycles of the first gas during operation, that is, it forcibly increases the number of times the first gas absorbs energy, effectively increases the pressure of the gas output from the exhaust port 9, and improves the compression effect. ,

[0052] Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24The seventh embodiment of the novel wheel-type working device is shown. It can be seen from the accompanying drawings that the novel wheel-type working device shown in this embodiment is mainly composed of a housing 1 and an impeller. There are three impellers in the housing 1, which are respectively installed on respective wheel shafts on the same axis. The three impellers are the first impeller, which is called the compressor impeller, the second impeller, which is called the front impeller, and the third impeller, which is the frontmost impeller, which is called the booster impeller. The compressor impeller is installed in the compressor impeller wheel cavity 20, the front impeller is installed in the front impeller wheel cavity 20', and the booster impeller is installed in the booster impeller wheel cavity 20". The compressor impeller is composed of a wheel body 2, a wheel shaft 3, and blades 4. The blades 4 are radially installed on the outer circumferential surface of the wheel body 2. The wheel shaft 3 is installed at the center of the wheel body 2. The front impeller is composed of the wheel body 2', the wheel shaft 3', and the blades 4'. The blades 4' are radially installed on the outer circumference of the wheel body 2'. The wheel shaft 3' is installed at the center of the wheel body 2'. The booster impeller is composed of the wheel body 2", the wheel shaft 3", and the blades 4'. The blades 4' are radially installed on the side circumference of the wheel body 2'. The wheel shaft 3' is installed at the center of the wheel body 2'. The wheel shaft 3 and the wheel shaft 3' are connected through the speed change device 14, and the speed change control mechanism 15 is provided on the speed change device 14. The speed change device 14 is a planetary gear set. The speed change control mechanism 15 is an electromagnetic control mechanism of the planetary gear set. One end of the wheel shaft 3 is connected to the planetary gear of the speed change device 14. The planetary gear carrier in the gear set is connected, the end of the wheel shaft 3' corresponding to the wheel shaft 3 is connected to the sun gear shaft in the planetary gear set of the speed change device 14, the other end of the wheel shaft 3' is connected to the planetary gear carrier in the planetary gear set of the speed change device 14, and one end of the wheel shaft 3" is connected to the sun gear shaft in the planetary gear set of the speed change device 14. The speed control mechanism 15 is an electromagnetic control mechanism of the planetary gear set. The electromagnetic coil in the electromagnetic control mechanism is fixed on the housing 1, and the magnetic locking plate is fixed on the large gear ring in the planetary gear set of the speed change device 14. The size of the boost impeller wheel cavity 20" matches the boost impeller. The boost impeller maintains a small airtight gap with the inner cavity wall of the wheel cavity 20", and tries to keep it sealed but does not contact the inner cavity wall of the wheel cavity 20". The boost impeller wheel cavity 20" in the shell 1 has an air inlet 8" and an exhaust port 9". The air inlet 8" is connected to the atmosphere at the center of the wheel cavity 20" on the side of the blade 4". The boost impeller wheel cavity 20" in the shell 1 has a semicircular arc-shaped auxiliary cavity 10" on the outer circumference. The semicircular arc-shaped auxiliary cavity 10" is connected to the wheel cavity 20" with the inner arc surface. The thickest end of the semicircular arc-shaped auxiliary cavity 10" is connected to the exhaust port 9". The compressor impeller is installed in the impeller wheel cavity 20 in the shell 1. The size of the compressor impeller wheel cavity 20 matches that of the compressor impeller. The compressor impeller maintains a small airtight gap with the inner cavity wall of the wheel cavity 20, and tries to keep it sealed but not in contact with the inner cavity wall of the wheel cavity 20. The compressor impeller wheel cavity 20 in the shell 1 has an air inlet 8 and an exhaust port 9 on the outer circumference.The previous impeller is installed in the previous impeller wheel cavity 20' in the housing 1. The size of the previous impeller wheel cavity 20' matches that of the previous impeller. The previous impeller maintains a small airtight gap with the inner wall of the cavity 20' and tries to keep it sealed but does not contact the inner wall of the cavity 20'. An air inlet 8' and an exhaust port 9' are arranged on the outer circumference of the previous impeller cavity 20' in the housing 1. The boost impeller exhaust port 9" is connected to the previous impeller air inlet 8', and the previous impeller exhaust port 9' is connected to the compressor impeller air inlet. The air inlet 8 is connected, the exhaust port 9 of the compressor impeller is connected to the outside through the exhaust duct 13, and the compressor impeller wheel cavity 20 in the housing 1 has a semicircular annular sub-cavity 10 on the periphery of the wheel cavity 20 corresponding to the impeller blade 4, where the air inlet 8 and the exhaust port 9 are farthest apart. The cross section of the semicircular annular sub-cavity 10 is L-shaped, and the semicircular annular sub-cavity 10 is connected to the wheel cavity 20 through the two inner angle surfaces of the L shape, and the semicircular annular sub-cavity 10 has a plurality of L-shaped sub-cavities 10 that match the L-shaped cross section of the semicircular annular sub-cavity 10. The L-shaped partition 22 divides the semicircular annular sub-cavity 10 into a plurality of L-shaped sub-cavities 10. When the blade 4 is in the corner of the L-shaped partition 22, the front and rear L-shaped sub-cavities 10 separated by the L-shaped partition 22 remain relatively sealed. The front impeller wheel cavity 20' corresponding to the impeller blade 4' in the semicircle farthest from the air inlet 8' and the exhaust port 9' of the front impeller wheel cavity 20' in the housing 1 has a semicircular annular sub-cavity 10' on the periphery. The cross section of the semicircular annular sub-cavity 10' is in the reverse L The semicircular annular sub-cavity 10' is connected to the wheel cavity 20' through two reverse L-shaped inner angle surfaces. The semicircular annular sub-cavity 10' has a plurality of reverse L-shaped spacers 22' matching the reverse L-shaped cross section of the semicircular annular sub-cavity 10'. The reverse L-shaped spacers 22' divide the semicircular annular sub-cavity 10' into a plurality of reverse L-shaped sub-cavities 10'. When the blade 4' is in the angle of the reverse L-shaped spacer 22', the front and rear sub-cavities 10' separated by the reverse L-shaped spacer 22' remain relatively sealed.

[0053] Basic working principle: When working, the power is input through the wheel shaft 3 to drive the compressor impeller to rotate. The wheel shaft 3 drives the planetary gear carrier in the speed change device 14 to drive the planetary gear to rotate. When the speed control mechanism 15 locks the large ring gear in the speed change device 14, the planetary gear drives the sun gear to make the wheel shaft 3' rotate with the previous impeller. The other end of the wheel shaft 3' drives the planetary gear carrier in the speed change device 14 to drive the planetary gear to rotate. The planetary gear drives the sun gear to make the wheel shaft 3" rotate with the supercharger impeller. When the speed control mechanism 15 locks the large ring gear in the speed change device 14, the speed ratio of the speed change device 14 is fixed. When the speed control mechanism 15 releases the large ring gear in the speed change device 14, the speed change device 14 will be in a non-output state. When the speed control mechanism 15 When the mechanism 15 drives the large gear ring in the speed change device 14 through the electromagnetic coil, the speed change device 14 will be in an adjustable speed ratio state, and the gas in the atmosphere enters the boost impeller cavity 20" from the air inlet 8" of the boost impeller cavity 20", and the gas at the air inlet 8" is referred to as the first gas here, and first enters the first impeller cavity 7" of the boost impeller. As the impeller rotates, the first gas at the air inlet 8" continues to enter the boost impeller cavity 7", and the first gas is pushed by the impeller to rotate in the boost impeller cavity 7", and the kinetic energy of the first gas rises rapidly. After the boost impeller applies energy, the first gas moves toward the outer circle of the boost impeller along the impeller blades 4" under the action of centrifugal force and enters the semicircular arc-shaped auxiliary cavity 10", and the boost impeller behind The first gas in the cavity 7 also continues to enter the semicircular arc-shaped sub-cavity 10" as the impeller rotates. The pressure of the first gas in the semicircular arc-shaped sub-cavity 10" increases rapidly. The first gas after the pressure increase enters the air inlet 8' of the previous impeller cavity 20' through the exhaust port 9". The first gas at the air inlet 8' first enters the impeller cavity 7' closest to the air inlet 8', which is referred to as the first impeller cavity 7'. As the previous impeller rotates, the first gas at the air inlet 8' continues to enter the subsequent impeller cavities 7'. The first gas is pushed by the previous impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas increases rapidly. The first gas, after being given energy by the previous impeller, moves along the impeller blades under the action of centrifugal force. The blade 4' moves toward the outer circle of the impeller and enters the first reverse L-shaped sub-cavity 10'. The first gas in the subsequent impeller cavities 7' also continues to enter the first reverse L-shaped sub-cavity 10' as the previous impeller rotates. The pressure of the first gas in the first reverse L-shaped sub-cavity 10' increases rapidly. The first gas after the pressure increase is blocked by the reverse L-shaped baffle 22' and is forced to follow the centripetal edge of the reverse L-shaped baffle 22' to enter the side of the previous impeller cavity 20' corresponding to the bottom of the previous impeller blade 4' and enter the previous impeller cavity 7' at the bottom of the previous impeller blade 4' where the pressure is relatively low again. The first gas entering the previous impeller cavity 7' at the bottom of the previous impeller blade 4' rotates again with the previous impeller.After being energized by the previous impeller, the first gas again enters the next reverse L-shaped sub-chamber 10′, which is referred to as the second reverse L-shaped sub-chamber 10′, along the previous impeller blade 4′ under the action of centrifugal force. The first gas in each of the previous impeller cavities 7′ is also energized by the previous impeller as the previous impeller rotates and successively enters the second reverse L-shaped sub-chamber 10′. The pressure of the first gas in the second reverse L-shaped sub-chamber 10′ increases again. After the pressure continues to increase, the first gas is again blocked by the reverse L-shaped partition 22′ and is forced to follow the centripetal edge of the reverse L-shaped partition 22′ forward and inward into the side of the previous impeller cavity 20′ corresponding to the bottom of the previous impeller blade 4′ and enter the bottom of the previous impeller blade 4′ with relatively low pressure again. The first gas that enters the previous impeller cavity 7' at the bottom will rotate for the third time along with the previous impeller. After being energized by the previous impeller for the third time, the first gas will enter the third reverse L-shaped sub-cavity 10' again along the previous impeller blades 4' under the action of centrifugal force. As the previous impeller continues to rotate, the first gas will continuously rotate and move forward in a spiral shape in the previous impeller cavity 7' and the reverse L-shaped sub-cavity 10'. Each time the first gas enters the previous impeller cavity 7', the previous impeller will impart energy to it once. When the first gas reaches the exhaust port 9' of the previous impeller cavity 20', it becomes a high-energy gas with high density and pressure. The first gas that has become a high-energy gas enters the compressor impeller through the exhaust port 9'. In the air inlet 8, the high-energy gas at the air inlet 8 is here continued to be referred to as the first gas and first enters the impeller cavity 7 closest to the air inlet 8, which is here referred to as the first impeller cavity 7. As the compressor impeller rotates, the first gas continues to enter the impeller cavities 7 that are subsequently transferred to. The first gas is pushed by the compressor impeller to rotate in the first impeller cavity 7, and the kinetic energy of the first gas increases rapidly. After the compressor impeller adds energy, the first gas moves toward the outer circle of the compressor impeller along the compressor impeller blades 4 under the action of centrifugal force and enters the first L-shaped sub-cavity 10. The first gases in the subsequent impeller cavities 7 also continue to enter the first L-shaped sub-cavity 10 as the compressor impeller rotates. The pressure of the first gas in the first L-shaped sub-cavity 10 increases rapidly, and the pressure The first gas after rising is blocked by the L-shaped partition 22 and is forced to enter the side of the compressor wheel cavity 20 corresponding to the bottom of the compressor impeller blade 4 forward and inward along the centripetal edge of the L-shaped partition 22 and enter the compressor wheel cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the compressor wheel cavity 7 at the bottom of the compressor impeller blade 4 rotates with the compressor impeller again. After being energized by the compressor impeller again, the first gas enters the next L-shaped sub-cavity 10, which is called the second L-shaped sub-cavity 10, along the compressor impeller blade 4 under the action of centrifugal force. The first gas in each subsequent compressor wheel cavity 7 is also energized by the compressor impeller as the compressor impeller rotates and enters the second L-shaped sub-cavity 10 successively.The pressure of the first gas in the second L-shaped sub-cavity 10 increases again. After the pressure continues to increase, the first gas is again blocked by the L-shaped partition 22 and forced to follow the centripetal edge of the L-shaped partition 22 forward and inward into the side of the compressor wheel cavity 20 corresponding to the bottom of the compressor impeller blade 4 and enter the compressor impeller cavity 7 at the bottom of the compressor impeller blade 4 with relatively low pressure again. The first gas entering the bottom of the compressor impeller cavity 7 will rotate with the compressor impeller for the third time. After the first gas is given energy by the compressor impeller for the third time, it will also Under the action of centrifugal force, the first gas will enter the third right-angled L-shaped sub-cavity 10 again along the compressor impeller blades 4. As the compressor impeller continues to rotate, the first gas will continuously rotate and move forward in a spiral shape in the compressor impeller cavity 7 and the L-shaped sub-cavity 10. Each time the first gas enters the compressor impeller cavity 7, energy will be applied by the compressor impeller. When the first gas reaches the exhaust port 9 of the compressor impeller cavity 20, it becomes a high-pressure energy gas with higher density and pressure. The first gas, which has become a high-pressure energy gas, enters the exhaust duct 13 through the exhaust port 9 and is discharged. It can be seen from the operation that since the air inlet 8" of the boost impeller is at the center of the boost impeller cavity 20", each boost impeller cavity 7" can simultaneously inhale gas through the air inlet 8" during operation, so the boost impeller can provide a relatively high intake pressure to the front impeller air inlet 8', and the front impeller can provide a relatively higher intake pressure to the compressor impeller air inlet 8, solving the problem of insufficient intake. The reverse L-shaped sub-cavity 10' of the front impeller and the L-shaped sub-cavity 10 of the compressor impeller also have the functions of collecting, blocking, expanding, guiding and connecting the first gas. During operation, the first gas is affected by the reverse L-shaped partition 22 ' and the L-shaped partition 22, it cannot freely move forward in the direction of rotation of the previous impeller and the compressor impeller, and can only be forced to move to the reverse L-shaped sub-cavity 10' and the side of the L-shaped sub-cavity 10 and re-enter the previous impeller cavity 7' and the compressor impeller cavity 7 to perform a boosted circulation movement, which forces the number of cycles of the first gas in the work to increase, that is, the number of times the first gas absorbs energy is forced to increase. Since the speed change device 14 is used to connect the wheel shafts, under the control of the speed change control mechanism 15, the working matching between the impellers reaches the best state, effectively improving the pressure and compression efficiency of the gas output from the exhaust port 9.

[0054] Through the description of the above seven embodiments, it can be seen that the partition in the auxiliary cavity of the new wheel type compressor device can effectively increase the number of cycles of the compressed gas and effectively increase the gas pressure at the output end. The air inlet 8" of the booster impeller is at the center of the booster impeller cavity 20". During operation, each booster impeller cavity 7" can simultaneously inhale gas through the air inlet 8", which increases the air intake volume, solves the problem of insufficient air intake, and can also provide a relatively higher intake pressure to the compressor impeller air inlet 8. Since the speed change device 14 is used between the wheel shafts for speed change connection, under the regulation of the speed change control mechanism 15, the working matching between the impellers reaches the best state, effectively improving the pressure and compression efficiency of the gas output from the exhaust port 9. It can be seen that the new wheel type compressor device has obvious progress and remarkable effects compared with the prior art. The present application is not limited to the above seven embodiments. The above seven embodiments can be interchanged and transformed with each other. It can be seen that the new wheel compressor device can be realized not only by one compressor impeller, but also by multiple compressor impellers. In the multiple compressor impeller structures, not only coaxial transmission technology but also variable speed transmission technology can be realized. It is not limited to one form of sub-cavity structure, but also can be a mixed sub-cavity structure composed of multiple sub-cavities in various forms. The structures in the above seven embodiments can be interchanged as needed.

[0055] All the above changes are within the protection scope of this application.

Claims

1. A novel wheel-type compressor, mainly composed of a housing and an impeller, wherein the impeller is composed of a wheel body and blades and is installed in an impeller cavity in the housing, and a wheel shaft is installed in the center of the wheel body, and is characterized by: The impeller maintains a small airtight gap with the wheel cavity wall and does not contact the wheel cavity wall. An air inlet and an exhaust port are arranged on the same semicircle of the impeller cavity corresponding to the impeller blades on the outer circle of the compressor impeller cavity on the shell. A semicircular annular sub-cavity is arranged on the periphery of the impeller cavity corresponding to the impeller blades on the semicircle where the air inlet and the exhaust port of the impeller cavity are farthest apart. The inner annular surface of the semicircular annular sub-cavity is communicated with the impeller cavity. A partition matching the cross section of the sub-cavity is arranged in the sub-cavity. The partition divides the semicircular annular sub-cavity into multiple sub-cavities. When the impeller blades are in the partition, the multiple sub-cavities are , each section of the sub-cavity remains relatively sealed; there are multiple impellers in the shell, which are respectively installed in their own wheel cavities, and the front impeller wheel cavity air outlet of the multiple impeller wheel cavities is connected to the rear impeller wheel cavity air inlet; or the cross-section of the semicircular annular sub-cavity is L-shaped and wrapped on the impeller wheel cavity corresponding to the semicircle of the impeller wheel cavity where the air inlet and the exhaust port are farthest apart, and there are multiple L-shaped partitions in the semicircular annular sub-cavity, and the centripetal end of the L-shaped partition is inclined from the impeller wheel cavity air inlet side to the impeller wheel cavity exhaust port side, and the inclined L-shaped partition divides the semicircular annular sub-cavity into multiple sections of inclined L-shaped sub-cavities, and the inclined When the impeller blades are in the inclined L-shaped partition, the inclined L-shaped sub-cavities are relatively sealed, the centripetal end of the inclined L-shaped sub-cavity corresponds to and communicates with the bottom of the impeller blade on the side of the impeller cavity, and the centrifugal end of the inclined L-shaped sub-cavity communicates with the impeller cavity on the outer circumferential surface of the impeller cavity; or the cross-section of the semicircular annular sub-cavity is in a right-angle L shape and wraps around the impeller cavity corresponding to the impeller blade in the semicircle where the impeller cavity air inlet and exhaust port are farthest apart, and the semicircular annular sub-cavity has a corresponding matching right-angle L-shaped movable partition, and the right-angle L-shaped movable partition A movable shaft is installed on the right-angled top edge of the centrifugal end, and both ends of the movable shaft are installed on the shells on both sides of the circumference of the semicircular annular sub-cavity. The right-angled L-shaped movable spacer is tilted and movable forward and backward with the movable shaft as the axis. The right-angled L-shaped movable spacer divides the semicircular annular sub-cavity into multiple right-angled L-shaped sub-cavities. When the impeller blades of the right-angled L-shaped sub-cavities are within the right angle of the right-angled L-shaped spacer, the right-angled L-shaped sub-cavities are relatively sealed. One end of the movable shaft extends out of the shell and is equipped with a regulating device. The centripetal end of the right-angled L-shaped spacer is tilted from the impeller wheel cavity air inlet side to the impeller wheel cavity exhaust side. Or the cross section of the semicircular annular sub-cavity is C-shaped and wrapped on the semicircular impeller cavity corresponding to the impeller blades at the farthest distance between the impeller cavity air inlet and the exhaust port. There are multiple C-shaped partitions in the semicircular annular sub-cavity, and the C-shaped partitions divide the semicircular sub-cavity into multiple sections of C-shaped sub-cavities. When the impeller blades are in the C-shaped partitions, the C-shaped sub-cavities are relatively sealed. The two ends of the C-shaped inner side surface of the C-shaped sub-cavity are connected to the positions corresponding to the bottom of the impeller blades on the two sides of the impeller cavity. There is a ridge in the middle of the inner surface of the inclined C-shaped sub-cavity and it is connected to the impeller cavity on the outer circular surface. The two ends of the C-shaped partition are inclined from the impeller cavity air inlet side to the impeller cavity exhaust side. Or the cross-section of the semicircular annular sub-cavity is in a right-angled U-shape and is wrapped on the impeller wheel cavity corresponding to the semicircle of the impeller wheel cavity where the air inlet and the exhaust port are farthest apart, and the impeller blades; the semicircular annular sub-cavity is provided with a corresponding right-angled U-shaped movable partition; a movable shaft is installed on the right-angled top edge in the middle of the right-angled U-shaped movable partition; both ends of the movable shaft are installed on the shells on both sides of the circumference of the semicircular annular sub-cavity; the right-angled U-shaped movable partition is tilted and movable back and forth with the movable shaft as the axis; the right-angled U-shaped movable partition divides the semicircular annular sub-cavity into a plurality of right-angled U-shaped sub-cavities; when the impeller blades are in the right-angled U-shaped partition, the right-angled U-shaped sub-cavities remain relatively sealed; one end of the movable shaft extends out of the shell and is provided with a regulating device.

2. A novel wheel-type air compressor according to claim 1, characterized in that: The plurality of impellers are mounted on different axles, the different axles are connected by a speed changing device, and the speed changing device has a speed changing control mechanism.

3. A novel wheel-type air compressor according to claim 2, characterized in that: The frontmost impeller among the plurality of impellers is a centrifugal boost impeller.

4. A novel wheel-type air compressor according to any one of claims 1, 2 and 3, characterized in that: The wheel shaft is provided with a bearing, the impeller wheel cavity outer shell is provided with a heat-insulating layer, and the heat-insulating layer is provided with a heat-insulating material.

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