An integrated disc-type axial flow compressor in a flash air conditioning system

Abstract

The present application relates to an integrated disc axial flow compressor in a flash air-conditioning system, comprising a shell, in which a plurality of independent and modular axial flow units are enclosed, each of the axial flow units being connected to a control device so as to adjust its rotation speed separately, and each of the axial flow units comprising a disc motor, multi-stage moving blades and multi-stage stationary blades, the disc motor comprising two stator assemblies, an integrated rotor assembly and two bearings, the two stator assemblies being located on both sides of the integrated rotor assembly along the axial direction, a plurality of permanent magnets being embedded at both ends of the integrated rotor assembly, the multi-stage moving blades being fixedly connected to the integrated rotor assembly, the multi-stage stationary blades being arranged on the inner wall of the shell, the multi-stage moving blades and the multi-stage stationary blades being spaced apart to form a multi-stage compression structure, the stationary blades being hollow inside and having stationary blade liquid spraying microholes therein, and the stationary blades being able to adjust the blade angle.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to an integrated disc-type axial flow compressor in a flash air-conditioning system. Background Art

[0002] In a flash vapor air conditioning system, water vapor flashes at around 10°C, achieving rapid phase-change cooling. At this evaporation temperature, the specific volume of water is low. Using a traditional centrifugal compressor results in a large rotor diameter and poor axial expandability, resulting in a bulky unit. While a multi-stage axial compressor can reduce the size of the structure while maintaining the same air intake capacity, the long series-connected design still faces critical speed issues and insufficient rigidity, making it unsuitable for the compactness and variable operating conditions required by flash air conditioning.

[0003] Axial flow compressors used in existing steam flash air conditioning systems have problems such as an inability to achieve a rigid shaft and an inability to achieve flexible adjustment. Therefore, there is an urgent need for a compact, highly rigid, and flexibly adjustable axial flow compressor. Summary of the Invention

[0004] The present invention aims to provide an integrated disc-type axial flow compressor in a flash air-conditioning system to solve the deficiencies in the prior art. The technical problems to be solved by the present invention are achieved through the following technical solutions.

[0005] An integrated disc axial flow compressor in a flash air conditioning system includes a shell, in which multiple sections of independent and modular axial flow units are enclosed. Each of the axial flow units is connected to a control device to adjust its speed separately. Each of the axial flow units includes a disc motor, multi-stage moving blades and multi-stage stationary blades. The disc motor includes two stator assemblies, an integrated rotor assembly and two bearings. The two stator assemblies are located on both sides of the integrated rotor assembly in the axial direction. Multiple permanent magnets are embedded at both ends of the integrated rotor assembly. The multi-stage moving blades are fixedly connected to the integrated rotor assembly. On the subassembly, the multi-stage stationary blades are arranged on the inner wall of the shell, the multi-stage moving blades and the multi-stage stationary blades are spaced apart to form a multi-stage compression structure, the stationary blades include blades, a hollow stationary blade shaft, a stationary blade bearing and a stationary blade spray micropore, the blades are fixedly connected to the stationary blade shaft, the stationary blade shaft is installed on the inner ring of the stationary blade bearing by interference fit, the stationary blade shaft passes through the shell, the outer ring of the stationary blade bearing is fixedly connected to the shell, and the inner ring of the stationary blade bearing is rotatable to adjust the stationary blade angle, the stationary blade shaft is hollow and connected to a spray hose, the coolant enters the stationary blade shaft through the spray hose, and is then sprayed out through the stationary blade spray micropores distributed in the blades.

[0006] Preferably, the multi-stage moving blades in the axial flow unit are driven by a disc motor in the axial flow unit, and the multi-stage axial flow units are independent of each other and have asynchronous rotational speeds.

[0007] Preferably, the multi-stage axial flow units operate in series.

[0008] Preferably, the stator assembly is sealed by glue potting, and the permanent magnets are embedded in both ends of the rotor and then sealed by glue potting.

[0009] Preferably, the bearing is a magnetic bearing or a water-lubricated bearing.

[0010] Preferably, the inner ring of the bearing is fixedly connected to the integrated rotor assembly and rotates therewith, and the outer ring is fixedly connected to the stator assembly and remains stationary.

[0011] Preferably, the axial flow unit further comprises a stationary spindle, the inner ring of the bearing is fixedly connected to the stationary spindle and remains stationary, and the outer ring is fixedly connected to the integrated rotor assembly and rotates therewith.

[0012] Preferably, the stationary spindle is fixedly connected to the stator assembly via a hexagon socket screw.

[0013] Preferably, the coolant is water.

[0014] Preferably, a rocker arm is provided outside the shell, the stationary blade shaft passes through the shell and is fixedly connected to the rocker arm outside the shell, and a plurality of rocker arms are fixedly provided on a control ring surrounding the outside of the shell.

[0015] The integrated disc-type axial flow compressor in the flash air conditioning system of the present invention has the following beneficial effects:

[0016] 1. This application directly integrates the axial flow blades with the motor rotor and adopts an axial flux motor, which can greatly shorten the axial length. Compared with the current technology in which the axial flow compressor connects the motor and the compressor shaft through a coupling, the length of the entire shaft system is greatly shortened, which is more suitable for use in scenarios with limited space.

[0017] 2. The axial flow unit in this application adopts multi-axis multi-stage technology. Each axial flow unit is independent of each other. Compared with the integrated single-axis multi-stage axial flow unit in the prior art, the speed of each section can be adjusted individually, and the dynamic requirements of the pressure ratio can be more flexibly matched according to the real-time working parameters.

[0018] 3. The stator blades of the present application are provided with stator blade spray microholes, which can spray coolant to cool the blades when the temperature is too high without affecting the aerodynamic performance.

[0019] 4. The stator blades of the present application are installed on the inner ring shaft of the stator blade bearing through the stator blade shaft provided inside the stator blade, and the stator blade angle is adjusted through the stator blade bearing. Compared with the non-adjustable stator blades in the prior art, the present application can achieve more precise parameter adjustment according to the working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a first axial-flow rotor according to a first embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a second axial-flow rotor according to the first embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the casing and stator blades of the present invention;

[0024] Figure 5 This is a structural diagram of the stationary blade of the present invention;

[0025] Figure 6 for Figure 5 AA cross-section of

[0026] Figure 7 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of a first axial-flow rotor according to a second embodiment of the present invention;

[0028] Figure 9 Schematic diagram of the second axial-flow rotor according to the second embodiment of the present invention.

[0029] Explanation of the reference numerals: 1-shell; 101-first axial flow unit stator blade; 102-second axial flow unit stator blade; 103-stator blade liquid spraying microhole; 104-stator blade shaft; 105-stator blade bearing; 106-liquid spraying hose; 2-first axial flow unit; 201-first axial flow unit moving blade; 202-first axial flow unit rotor; 203-first axial flow unit permanent magnet; 204-first axial flow unit stator; 205-first axial flow unit bearing; 206-first axial flow unit stationary shaft; 3-second axial flow unit; 301-second axial flow unit moving blade; 302-second axial flow unit rotor; 303-second axial flow unit permanent magnet; 304-second axial flow unit stator; 305-second axial flow unit bearing; 306-second axial flow unit stationary shaft. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0035] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] The embodiment of the present application is introduced by taking a two-segment axial flow unit as an example. It should be noted that the present application is not limited to including only two-segment axial flow units, but may include multiple segments.

[0038] Example 1

[0039] like Figure 1-6The figure shows the overall structure of the first embodiment of the present application, which includes a housing 1, two independent, modular first axial flow units 2 and second axial flow units 3 enclosed within the housing, each of which is connected to a control device. The first axial flow unit 2 includes a disc motor and multi-stage first axial flow unit rotor blades 201. The disc motor of the first axial flow unit 2 includes a set of first axial flow unit stators 204, an integrated first axial flow unit rotor 202, and a set of first axial flow unit bearings 205. The set of first axial flow unit stators 204 are located on both sides of the first axial flow unit rotor 202 in the axial direction. The first axial flow unit rotor 202 is embedded with multiple first axial flow unit permanent magnets 203 at both ends. The multi-stage first axial flow unit rotor blades 201 are fixedly connected to the first axial flow unit rotor 202, and the multi-stage first axial flow unit stator blades 101 are connected to the inner wall of the housing 1. The multi-stage first axial flow unit rotor blades 201 and the multi-stage first axial flow unit stator blades 101 are spaced apart to form a multi-stage compression structure. The second axial flow unit 3 includes a disc motor and multi-stage second axial flow unit blades 301. The disc motor of the second axial flow unit 3 includes a set of second axial flow unit stators 304, an integrated second axial flow unit rotor 302, and a set of second axial flow unit bearings 305. The set of second axial flow unit stators 304 is located on both sides of the second axial flow unit rotor 302 in the axial direction. The two ends of the second axial flow unit rotor 302 are embedded with multiple second axial flow unit permanent magnets 303. The second axial flow unit blades 301 are fixedly connected to the second axial flow unit rotor 302, and the multi-stage second axial flow unit stationary blades 102 are connected to the inner wall of the housing 1. The multi-stage second axial flow unit blades 301 and the multi-stage second axial flow unit stationary blades 102 are spaced apart to form a multi-stage compression structure. The stator blades comprise blades, a hollow stator shaft 104, a stator bearing 105, and stator spray holes 103. The blades are fixedly connected to the stator shaft 104, which is mounted on the inner ring of the stator bearing 105 via an interference fit. The stator shaft 104 passes through the housing, and the outer ring of the stator bearing 105 is fixedly connected to the housing. The inner ring of the stator bearing 105 is rotatable to adjust the stator blade angle. The stator shaft 104 is hollow and internally connected to a spray hose 106. Coolant enters the stator shaft 104 through the spray hose 106 and is then sprayed out through the stator spray holes 103 distributed within the blades. A rocker arm connected to the stator shaft 104 and an operating ring connected to the rocker arm are disposed outside the housing 1. The operating ring drives the rocker arm, the stator shaft 104, and thus the stator blades to adjust the stator blade angle. This is prior art and will not be described in detail.

[0040] Furthermore, since the compressor of the present application uses water as the coolant, water is also selected as the coolant. When the blade temperature is too high, the coolant can be sprayed to reduce the temperature. After the coolant is sprayed out from the stator blade spray holes, it quickly vaporizes, as the compressor temperature during normal operation is between 180° and 190°. This not only reduces the blade temperature, but also prevents the introduction of impurities, thereby maintaining aerodynamic performance.

[0041] Furthermore, the multi-stage first axial flow unit blades 201 in the first axial flow unit 2 are driven by the disk motor in the first axial flow unit 2 , and the multi-stage second axial flow unit blades 301 in the second axial flow unit 3 are driven by the disk motor in the second axial flow unit 3 .

[0042] Furthermore, the compression ratio of the first axial flow unit is 3, and the compression ratio of the second axial flow unit 3 is 2.3334.

[0043] Furthermore, the first axial flow unit 2 and the second axial flow unit 3 operate in series, independently of each other, and with asynchronous rotational speeds. The rotational speed of at least one of the units is independently adjusted according to real-time operating parameters to dynamically match the pressure ratio to the requirements.

[0044] Furthermore, the first axial flow unit stator 204 and the second axial flow unit stator 304 are sealed by glue potting, and the first axial flow unit permanent magnet 203 and the second axial flow unit permanent magnet 303 are respectively embedded in the two ends of the first axial flow unit rotor 202 and the second axial flow unit rotor 302, and then sealed by glue potting.

[0045] In this embodiment, the inner ring of the bearing is fixedly connected to the integrated rotor assembly and rotates therewith, and the outer ring is fixedly connected to the stator assembly and remains stationary.

[0046] In water vapor flash air conditioning, the medium is pure water vapor, with an inlet absolute pressure of 1.2 kPa, an inlet temperature of 10°C, a mass flow rate of 0.47 kg / s, and a design pressure ratio of 7. The first axial flow unit 2 has a compression ratio of 3, a hub ratio of 0.823, and a rotational speed of 8300 rpm. The second axial flow unit 3 has a compression ratio of 2.3334, a hub ratio of 0.9256, and a rotational speed of 8000 rpm. Using the above-mentioned bearing support method, the first-order critical speed of the first axial flow unit 2 is 32200 rpm, and the first-order critical speed of the second axial flow unit 3 is 35300 rpm. The critical speed is higher than the operating speed. The first axial flow unit bearing 205 and the second axial flow unit bearing 305 adopt magnetic suspension bearings, which are oil-free and seal-free. In addition, water-lubricated bearings can also be selected.

[0047] During operation, the three-stage first axial flow unit rotor blades 201 in the first axial flow unit 2 are driven by the disc motor in the first axial flow unit 2, while the three-stage second axial flow unit rotor blades 301 in the second axial flow unit 3 are driven by the disc motor in the second axial flow unit 3. The multi-stage first axial flow unit stator blades 101 and second axial flow unit stator blades 102 are hollow structures and are mounted on the inner ring of the stator bearing 105 via a stator shaft 104. The stator bearing 105 allows for adjustable stator blade angles. To mitigate overheating, coolant is introduced into the stator blades 101 and 102 through the spray hoses 106 in the first and second axial flow unit stator blades, and then sprayed out through the stator spray micropores 103. When field operating conditions fluctuate, the angles of the first and second axial flow unit stator blades 101 and 102 are adjusted first to match the operating conditions, followed by the speed of the second axial flow unit 3, and finally, the speed of the first axial flow unit 2.

[0048] When a conventional axial compressor is used in this operating condition, 8 stages of compression are required, without interstage cooling, and the shaft power is 194.5 kW. The axial compressor described in the present invention is divided into two stages of compression, and the two stages are driven separately with independent speeds. The hub ratio and speed of the second stage are adjusted to maintain high aerodynamic efficiency. Compared with conventional axial compressors, with the same aerodynamic parameters, the aerodynamic efficiency of the second stage is improved by 1.05 times. Step-by-step spraying ensures that the water vapor at the inlet of each stage is in a saturated state. The required power is 157.7 kW, which saves 36.8 kW compared to conventional axial compressors, saving energy consumption by about 18.9%. At this time, the first stage is 3 stages and the second stage is 3 stages, which is 2 stages less than conventional axial compressors, significantly saving costs.

[0049] Example 2

[0050] The second embodiment provides another implementation scheme for the same flash air-conditioning working conditions as the first embodiment.

[0051] like Figure 4-9As shown, the overall structural diagram of the second embodiment of the present application is shown, including a shell 1, two independent, modular first axial flow units 2 and a second axial flow unit 3 enclosed in the shell; the first axial flow unit 2 includes a disc motor, multi-stage first axial flow unit moving blades 201, multi-stage first axial flow unit stationary blades 101 and a first axial flow unit stationary spindle 206; the disc motor includes a group of first axial flow unit stators 204, an integrated first axial flow unit rotor 202, and a group of first axial flow unit bearings 205, the group of first axial flow unit stators 204 are located on both sides of the first axial flow unit rotor 202 in the axial direction, and a plurality of first axial flow unit permanent magnets 203 are embedded at both ends of the first axial flow unit rotor 202; the multi-stage first axial flow unit moving blades 201 are fixedly connected to the first axial flow unit rotor 202, the multi-stage first axial flow unit stationary blades 101 are connected to the inner wall of the shell 1, and the multi-stage first axial flow unit moving blades 201 and the multi-stage first The axial flow unit stator blades 101 are distributed at intervals, and the first axial flow unit stationary spindle 206 is fixedly connected to the first axial flow unit stator 204; the second axial flow unit 3 includes: a disc motor, multi-stage second axial flow unit moving blades 301 and multi-stage second axial flow unit stator blades 102, and a second axial flow unit stationary spindle 306; the disc motor includes a group of second axial flow unit stators 304, an integrated second axial flow unit rotor 302, and a group of second axial flow unit bearings 305, the group of second axial flow unit stators 304 are located on both sides of the second axial flow unit rotor 302 in the axial direction, and multiple second axial flow unit permanent magnets 303 are embedded at both ends of the second axial flow unit rotor 302; the multi-stage second axial flow unit moving blades 301 are fixedly connected to the second axial flow unit rotor 302, the multi-stage second axial flow unit stator blades 102 are connected to the inner wall of the shell 1, and the multi-stage second axial flow unit moving blades 301 and the multi-stage second axial flow unit stator blades 102 are distributed at intervals.

[0052] In this embodiment, the bearing support method is different from that in embodiment 1. The inner ring of the bearing is fixedly connected to the stationary spindle and remains stationary, while the outer ring of the bearing is fixedly connected to the rotor and rotates therewith. The stationary spindle is fixedly connected to the axial flow unit stator via hexagon socket screws.

[0053] Furthermore, due to the difference in support method from Example 1, the bearing support method of Example 2 is adopted. The first-order critical speed of the first axial flow unit 2 is 48,350 rpm, and the first-order critical speed of the second axial flow unit 3 is 52,250 rpm. The critical speeds of the first and second axial flow units 2 and 3 are both higher than those in Example 1. Because the critical speeds are higher than the operating speed, the first and second axial flow unit bearings 205 and 305 use oil-free and seal-free magnetic bearings. Water-lubricated bearings are also an option.

[0054] Compared with the first embodiment, the structural rotating body of the second embodiment has a smaller moment of inertia and a greater rigidity, and therefore a higher critical speed. In addition, the bearings are built into the rotor and are not subject to size restrictions. The number of bearings can be increased as needed without changing the axial size of the rotor to increase the support rigidity. This is more suitable for certain occasions with stringent requirements on rotor dynamics.

[0055] It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0056] It should be noted that the terms used herein are intended only to describe specific embodiments and are not intended to limit the exemplary embodiments described herein. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0058] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product, or apparatus.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0060] In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless the context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0061] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An integrated disc-type axial flow compressor in a flash air conditioning system, characterized by: The invention comprises a shell, in which a plurality of sections of axial flow units which are independent of each other and modular are enclosed, each of the axial flow units is connected to a control device to adjust its rotation speed separately, each of the axial flow units comprises a disc motor, multi-stage moving blades and multi-stage stationary blades, the disc motor comprises two stator assemblies, an integrated rotor assembly and two bearings, the two stator assemblies are located on both sides of the integrated rotor assembly in the axial direction, a plurality of permanent magnets are embedded at both ends of the integrated rotor assembly, the multi-stage moving blades are fixedly connected to the integrated rotor assembly, the multi-stage stationary blades are fixedly connected to the integrated rotor assembly, and the multi-stage stationary blades are fixedly connected to the integrated rotor assembly. The blades are arranged on the inner wall of the shell, and the multi-stage moving blades and the multi-stage stationary blades are spaced apart to form a multi-stage compression structure. The stationary blades include blades, a stationary blade shaft with a hollow interior, a stationary blade bearing and a stationary blade spray micropore. The blades are fixedly connected to the stationary blade shaft, and the stationary blade shaft is installed on the inner ring of the stationary blade bearing by interference fit. The stationary blade shaft passes through the shell, and the outer ring of the stationary blade bearing is fixedly connected to the shell. The inner ring of the stationary blade bearing is rotatable to adjust the stationary blade angle. The stationary blade shaft is hollow and is connected to a spray hose. The coolant enters the stationary blade shaft through the spray hose and is then sprayed out through the stationary blade spray micropores distributed in the blades.

2. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The multi-stage moving blades in the axial flow unit are driven by a disc motor in the axial flow unit. The multi-stage axial flow units are independent of each other and have asynchronous rotational speeds.

3. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The multi-stage axial flow units operate in series.

4. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The stator assembly is sealed by glue potting, and the permanent magnets are embedded in both ends of the rotor and then sealed by glue potting.

5. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The bearing is a magnetic suspension bearing or a water-lubricated bearing.

6. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The inner ring of the bearing is fixedly connected to the integrated rotor assembly and rotates therewith, and the outer ring is fixedly connected to the stator assembly and remains stationary.

7. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The axial flow unit further comprises a stationary spindle, the inner ring of the bearing is fixedly connected to the stationary spindle and remains stationary, and the outer ring is fixedly connected to the integrated rotor assembly and rotates therewith.

8. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 7, characterized in that: The stationary spindle is fixedly connected to the stator assembly via hexagon socket screws.

9. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: The coolant is water.

10. The integrated disc-type axial flow compressor in a flash air conditioning system according to claim 1, characterized in that: A rocker arm is provided outside the shell, and the stationary blade shaft passes through the shell and is fixedly connected to the rocker arm outside the shell. A plurality of rocker arms are fixedly provided on a control ring surrounding the outside of the shell.

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