WO2023019851A1 - 一种带调节器的轴流风机的风道结构 - Google Patents

一种带调节器的轴流风机的风道结构 Download PDF

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Publication number
WO2023019851A1
WO2023019851A1 PCT/CN2021/141507 CN2021141507W WO2023019851A1 WO 2023019851 A1 WO2023019851 A1 WO 2023019851A1 CN 2021141507 W CN2021141507 W CN 2021141507W WO 2023019851 A1 WO2023019851 A1 WO 2023019851A1
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WIPO (PCT)
Prior art keywords
ring
air
axial flow
cylinder
impeller
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PCT/CN2021/141507
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English (en)
French (fr)
Inventor
韩春江
钟仁志
袁军
姚莹海
Original Assignee
鑫磊压缩机股份有限公司
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Publication of WO2023019851A1 publication Critical patent/WO2023019851A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/003—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by throttling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine

Definitions

  • the present application relates to the technical field of axial flow fans, in particular to an air passage structure of an axial flow fan with a regulator.
  • Axial flow fans are usually used in occasions with high flow requirements, including fan impellers and casings, and are commonly used by companies in working conditions.
  • the axial flow fan often needs to adjust the flow rate or pressure of the working fluid during operation, and the accuracy of the adjustment is high.
  • patent number CN 2020215450276 is a utility model patent authorized and announced on February 26, 2021.
  • the application discloses a long tunnel excavation ventilation and smoke exhaust system, including a fixed frame and a mobile frame.
  • the fixed frame An air duct is fixedly connected to the top of the air duct, and a ventilation groove is arranged in the air duct, and an axial flow fan is fixedly connected in the air duct through a fixed block, and a first protective net is arranged at one end of the air duct, and the air duct is far away from One end of the first protective net is connected with a connecting frame, the second protective net is arranged on the connecting frame, and a ventilation pipe is connected with the connecting frame.
  • the present invention provides an air channel structure of an axial flow fan with a regulator, which has an approximately linear outflow air channel and an internal cooling air channel flowing through the inside of the motor assembly, which can Improve the heat dissipation efficiency of the motor.
  • the inner flow channel can be controlled by a control valve, and the inner flow channel can be closed when it is used in a high temperature environment, so as to improve the application reliability of the axial flow fan.
  • An air channel structure of an axial flow fan with a regulator which is characterized in that it includes a fan assembly, a motor barrel and an inlet guide vane regulator arranged in sequence;
  • the motor cylinder includes an outer cylinder and an inner cylinder, an outflow air duct is provided between the outer cylinder and the inner cylinder; a motor assembly is provided inside the inner cylinder; an air inlet is provided at the end of the inner cylinder facing the inlet guide vane regulator Fairing, the air intake fairing is provided with an air inlet, one end of the main shaft is fixed with a heat dissipation impeller facing the air inlet, and an internal cooling channel corresponding to the air inlet is provided in the motor barrel;
  • the air inlet is provided with a control valve matched with it.
  • the outer flow air duct is used as the main air duct to complete the conduction of the axial flow fan.
  • the inner cooling channel flows through the inside of the motor assembly to improve the heat dissipation of the motor part.
  • the main air duct is close to a straight line, with small wind resistance and large ventilation. High efficiency; the inner flow channel can be controlled by the control valve, and the inner flow channel can be closed when the high temperature environment is used, so as to improve the application reliability of the axial flow fan. .
  • the motor assembly includes a main shaft, a rotor assembly and a stator assembly
  • the moving impeller is fixedly connected to the main shaft, and the main shaft drives the moving impeller to rotate
  • both ends of the inner cylinder are respectively provided with end covers matching the motor assembly, and the end cover and the main shaft are rotated through bearings connection
  • the inner cooling flow channel includes the cooling hole set on the end cover and the cooling gap set between the stator assembly and the main shaft
  • the inner cooling flow channel also includes the cooling hole between the air inlet and the cooling hole, the cooling hole and the cooling gap
  • the inner cylinder is hollow, and the inner cylinder is provided with air outlet holes matching the inner cooling channel.
  • the internal cooling channel is set smoothly and the structure is compact.
  • the air inlet is provided with a matching control valve.
  • the control valve is arranged on the side of the air intake fairing facing the motor assembly.
  • There is a matching rotary drive assembly and there are several guide rods on the limit ring, and a valve plate is slid on the guide rod, and the valve plate is located between the guide rod and the intake shroud; the valve plate and the intake guide
  • the flow cover is provided with a matched sliding column and a chute, and the shape of the chute is spiral.
  • the control valve can rotate by driving the limit ring when encountering high temperature conditions, and the limit ring and the guide rod rotate. Due to the spiral fit between the valve plate and the chute, the valve plate will spiral along the chute when the limit ring rotates.
  • the guide rod also has a supporting function.
  • the control valve can be hidden behind the air intake fairing. side, with high security.
  • worm teeth are provided on the outer circumference of the limiting ring, and the driving and rotating assembly includes several worms arranged on the air intake fairing to cooperate with the limiting ring. Because the limit ring cooperates with the worm through the worm gear, the limit ring has a self-locking function. When the limit ring cannot rotate, the position of the valve plate in the chute is also fixed, so the self-locking of the valve plate can be formed, and the control valve can be improved. reliability.
  • the fan assembly includes a stationary impeller and a moving impeller, and the stationary impeller is fixedly connected to one end of the motor barrel; the moving impeller and the stationary impeller are adjacently arranged; the stationary impeller includes an outer wheel ring fixed to the motor barrel, and an inner wheel ring is arranged inside the outer wheel ring , a blade body is arranged between the outer ring and the inner ring, and the fan assembly also includes a fairing fixed on the inner ring.
  • the static impeller not only has the function of guiding the fluid, but also serves as a connection support, connecting the fairing and the motor barrel, and is beneficial to realize the rotation and sealing of the moving impeller; after the fluid passes through the stationary impeller, it passes through the fairing and enters the diffuser tube.
  • the kinetic energy of the fluid is converted into static pressure energy, which makes the air output of the axial flow fan more stable; the blade position of the moving impeller and the blade position of the dedicated wheel correspond to the outflow air duct, forming a ring-shaped suction cavity, and the suction cavity is inside the outflow air duct
  • the fluid provides reliable annular suction, thereby improving the uniformity of airflow in the axial fan.
  • an expansion tube is fixed on the outer ring, the inner wall of the expansion tube is in the shape of a frustum, and the cone angle of the inner wall of the expansion tube faces the side where the inlet guide vane regulator is located.
  • the kinetic energy of the fluid is converted into static pressure energy, which makes the air output of the axial flow fan more stable.
  • the guide rod includes a connecting section and a closing section positioned at the upper end of the connecting section, the connecting section, the closing section are coplanar with the axis of the air intake fairing, the connecting section and the closing section are all arc-shaped, and the radius of the closing section is smaller than the radius of the connecting section, the junction of the closing section and the connecting section is opposite to the edge of the air inlet, and the closing section protrudes out of the air inlet.
  • the spherical surface formed by the closing section is located outside the spherical surface formed by the connecting section, and plays a role of supporting the valve sheet when the valve sheet is stretched out.
  • the rotor assembly is integrated inside the main shaft, and magnetic suspension bearings are respectively provided between both ends of the main shaft and the motor barrel.
  • Active magnetic suspension bearing technology is used to realize rotor suspension by electromagnetic force, no contact, no friction, no lubricating oil, and long service life.
  • worm teeth are provided on the outer circumference of the limiting ring, and the driving and rotating assembly includes several worms arranged on the air intake fairing to cooperate with the limiting ring.
  • two intersecting edges are provided on the outer end of the valve plate, one of which is provided with a limiting sealing groove, and the other edge is provided with a limiting sealing protrusion, and a sealing strip is provided in the limiting sealing groove.
  • the space-limiting sealing groove and the space-limiting sealing protrusion can cooperate with each other.
  • the several guide rods converge at one point, and the several guide rods are arranged in a circular array around the axis of the limiting ring.
  • the outer ends of the guide rod meet and fix at one point, which is not easy to deform, and ensures the supporting function of the guide rod.
  • a number of supporting guide pillars are provided between the inner cylinder and the outer cylinder, an outflow air duct is formed between the supporting guide pillars, the motor assembly is arranged inside the inner cylinder, and a connecting inner cylinder is arranged inside the supporting guide pillars.
  • the motor barrel plays the role of supporting and installing the motor assembly and positioning the connection line of the magnetic suspension bearing. It can also be used for the airflow conduction of the axial flow fan, and has good functionality.
  • the movable impeller includes a connecting inner disc, a connecting plate, a connecting outer ring and a moving blade body, the connecting inner disc is fixedly connected to the main shaft, and the outer side of the connecting outer ring is engaged with the outer side of the inner wheel ring of the stationary impeller; the inner disc and the outer ring are connected Connected by the connecting plate, the connecting plate and the connecting outer ring form several moving blade bodies on the connecting plate, and a stepped surface is formed between the connecting outer ring and the connecting plate, and a sealing ring is provided on the stepped surface in contact with the inner side of the connecting outer ring , the connecting outer ring and the sealing ring are arranged to rotate relative to each other, and the outer periphery of the sealing ring is provided with sealing teeth that cooperate with the inner side of the outer ring.
  • the setting of the sealing ring realizes the rotational sealing between the moving impeller and the motor assembly, prevents the airflow in the air duct of the axial flow fan from dissipating heat to the motor assembly and affects the flow of the axial flow fan, and ensures the flow control of the fan is reliable.
  • the outflow air duct is used as the main air duct to complete the conduction of the axial flow fan, and the inner cooling channel flows through the inside of the motor assembly to improve the heat dissipation of the motor part, the main air duct is close to a straight line, and the wind resistance Small, large ventilation flow, high transmission efficiency, through the setting of the internal cooling channel, the motor components inside the motor barrel can directly enter the air, and the heat dissipation inside the motor components can be achieved through the air intake, and can be controlled by the drive limit when encountering high temperature conditions.
  • the stop ring rotates, the stop ring and the guide rod rotate.
  • the valve plate Due to the helical fit between the valve plate and the chute, the valve plate will spirally protrude along the chute when the limit ring rotates, so that several valve plates are combined to form a spherical surface.
  • the spherical surface seals the air inlet.
  • the guide rod also has a supporting function.
  • Fig. 1 is a structural schematic diagram of the present invention.
  • Fig. 2 is a schematic structural diagram of the motor assembly of the present invention.
  • Fig. 3 is a schematic structural view of the stationary impeller in the present invention.
  • Fig. 4 is a side view of the stationary impeller in the present invention.
  • Fig. 5 is a schematic structural view of the inlet guide vane in the present invention.
  • FIG. 6 is a right side view of FIG. 5 .
  • Fig. 7 is a schematic structural view of the motor barrel in the present invention.
  • FIG. 8 is an enlarged schematic view of point A in FIG. 1 .
  • Fig. 9 is a structural schematic diagram of the connection between the main shaft and the moving impeller in the present invention.
  • Fig. 10 is a schematic diagram of the structure of the air intake fairing and the control valve when the control valve is opened in the present invention.
  • Fig. 11 is a structural schematic diagram of the inner surface of the air intake fairing and the control valve when the control valve is closed in the present invention.
  • Fig. 12 is a structural schematic diagram of the connection between the mounting ring and the limiting ring in the present invention.
  • Fig. 13 is a schematic structural view of the valve plate in the present invention.
  • an air duct structure of an axial flow fan with a regulator includes a fan assembly, a motor barrel 1, and an inlet guide vane 41 regulator arranged in a straight line.
  • the axial flow fan is equipped with other monitoring equipment such as anemometer or flowmeter, which can automatically control the inlet guide vane regulator to adjust the air volume.
  • a motor barrel 1 is provided on the outside of the motor assembly; the motor barrel 1 includes an inner barrel 101 and an outer barrel 102, and an outflow air duct is arranged between the outer barrel and the inner barrel.
  • the deflector columns 103 are supported, and an outflow air channel is formed between the support deflector columns.
  • the inner cylinder 101 is provided with a motor assembly, and the supporting deflector column 103 is provided with a wiring hole 104 connecting the interior of the inner cylinder 101 and the exterior of the outer cylinder 102.
  • the outer cylinder 102 is provided with a base plate 105. Two symmetrical pieces are arranged at the end, and an emptying groove 106 is arranged at the middle position of the base plate 105 .
  • Both ends of the motor barrel 1 are provided with end caps 107 that match the motor assembly.
  • the end caps 107 and the main shaft 3 are connected through bearing rotation.
  • the set support guide columns 103 form a fluid channel, and the fluid can take away part of the heat of the motor during the conveying process, which enhances the heat dissipation effect of the whole machine; five support guide columns 103 are provided to make the load distribution of the motor cylinder 1 It is more reasonable; the supporting guide column 103 simulates the leading edge and the trailing edge through the method of computational fluid dynamics, which reduces the resistance of the supporting column to the fluid to the greatest extent;
  • the number of wiring holes 104 is three, respectively Motor power line outlet hole, front magnetic bearing outlet hole, rear magnetic bearing outlet hole, the number of outlet holes should not be less than three, otherwise the motor power line will interfere with other lines, thereby affecting the performance of the motor; the base plate 105 and the motor
  • the cylinder 1 adopts an integrated structure, which is integrally formed during casting, which makes the overall structure more reasonable, further
  • the fan assembly includes a stationary impeller 200 and a moving impeller 201, the stationary impeller 200 is fixedly connected to one end of the motor barrel 1; the moving impeller 201 and the stationary impeller 200 are adjacently arranged; the stationary impeller 200 includes an outer ring 202 fixed to the motor barrel 1, and the motor barrel One end of 1 is screw connected with a connecting cover, and the outer ring 202 of the stationary impeller 200 is fixed on the connecting cover by screws.
  • the outer ring 202 is provided with an inner ring 203, and a blade body 204 is arranged between the outer ring 202 and the inner ring 203.
  • the fan assembly also includes a fairing 205 fixed on the inner ring 203. Dilation tube 206.
  • the inner wall of the expansion tube 206 is in the shape of a circular frustum.
  • the moving impeller 201 and the stationary impeller 200 must maintain an appropriate gap, otherwise the moving impeller 201 cannot rotate, but the existence of this axial gap makes the fluid scattered in the gap between the moving and stationary blades , resulting in air leakage loss
  • the stationary impeller 200 is provided with a mounting groove 207 for positioning the sealing ring 208 in conjunction with the step surface, which can effectively reduce gas leakage; 209.
  • the outer ring 209 of the moving blade is made of PEEK material.
  • the PEEK material Due to the characteristics of the PEEK material, it can protect the blade.
  • the chamfering of the blade top and the leading edge of the blade root of the stationary impeller 200 can effectively reduce the stress concentration effect on the blade root and effectively reduce the fatigue damage and fracture failure of the blade; Hollowing treatment, under the premise of ensuring the performance of the moving impeller 201, the weight is the lightest.
  • the movable impeller 201 includes a connecting inner disk 210, a connecting plate 211, a connecting outer ring 212 and a moving blade body 213.
  • the connecting inner disk 210 is fixedly connected to the main shaft 3, and the main shaft 3 is threadedly connected with a pull rod 214.
  • connection inner disc 210 is provided with a fixing hole 215, and the two ends of the fixing hole 215 are respectively provided with limit steps, and the pull rod 214 passes through the fixing hole 215, and the diameter of the tie rod 214 is smaller than that of the fixing hole 215 ,
  • the pull rod 214 is provided with a limit ring 216 whose diameter matches the fixing hole 215, and the outer end of the pull rod 214 is provided with a pre-tightening nut 217.
  • the outer side of the connecting outer ring 212 is joined to the outer surface of the inner ring of the stationary impeller 200; the connecting inner disc 210 and the connecting outer ring 212 are connected through the connecting plate 211, and the connecting plate 211 and the connecting outer ring 212 form a connecting disc with several moving blades body 213, a stepped surface is formed between the connecting outer ring 212 and the connecting plate 211, and a sealing ring 208 arranged in contact with the inner side of the connecting outer ring 212 is arranged on the stepped surface, and the connecting outer ring 212 and the sealing ring 208 are relatively rotated, and the sealing ring 208
  • the outer circumference of the outer ring is provided with sealing teeth that are connected to the inner side of the outer ring 212 .
  • the seal ring 208 connecting the two ends of the outer ring 212 is respectively fixedly connected to the end cover 107 and the inner ring 203 by screws.
  • the moving impeller 201 is made of carbon fiber plus resin composite material. Compared with traditional metal alloys, the weight is reduced and the wear resistance and corrosion resistance are improved. Weight-reducing holes are formed between the connecting plates 211, and the weight-reducing holes are distributed on the wheel disc in a circular manner, so that the impeller maintains good aerodynamic performance while greatly reducing the weight, effectively reducing the vibration of the rotor in the rotating state, and improving the balance and performance of the impeller. Stability; when the magnetic levitation motor is turned off, the suspended rotor will fall on the protective bearing. The smaller the weight of the rotor, the longer the service life of the bearing; the front edge of the blade root of the moving impeller 201 is chamfered, which can effectively reduce the blade root The stress concentration effect effectively reduces the fatigue damage and fracture failure of the blade.
  • the motor assembly includes a main shaft 3 , a rotor assembly 31 and a stator assembly 32 , the stator assembly 32 is fixed in the motor barrel 1 , and the stator assembly 32 includes an iron core and a winding.
  • the movable impeller 201 is fixedly connected to the main shaft 3, and the main shaft 3 drives the movable impeller 201 to rotate;
  • the rotor assembly 31 is integrated inside the main shaft 3, and the main shaft 3 includes a left half shaft 301 and a right half shaft 302, and the left half shaft 301 and the right half shaft 302
  • a cylindrical permanent magnet 303 is arranged between, and a first magnetic isolation ring 304 and a second magnetic isolation ring 305 are respectively arranged between the permanent magnet 303, the left half shaft 301, and the right end semi shaft 302, and the permanent magnet 303 is provided with two ends.
  • the left half-shaft 301 is provided with a front-end spacer 307, a radial magnetic bearing rotor 308, and a radial bearing tested body 309 from the permanent magnet protection sleeve in sequence;
  • the right end shaft shoulder 310 is provided with a thrust plate 311, a rear end spacer 312, a radial magnetic bearing rotor 308 and a radial magnetic bearing tested body in sequence.
  • Magnetic suspension bearings 313 are respectively provided between both ends of the main shaft 3 and the motor barrel 1 .
  • One end of the motor barrel 1 facing the inlet guide regulator is provided with an air intake fairing 314, and the air intake fairing 314 is provided with an air inlet 315, and one end of the main shaft 3 is fixedly provided with a cooling impeller 316 facing the air inlet 315, and the motor barrel 1 is provided with an internal cooling channel corresponding to the air inlet 315.
  • the inner cooling channel includes the cooling hole 317 provided on the end cover 107 and the cooling gap 318 provided between the stator assembly 32 and the main shaft 3.
  • the inner cooling channel also includes the cooling hole 317 located between the air inlet 315 and the cooling hole 317.
  • the inner cavity 319 of the inner cylinder between the cooling gap 318 is provided with an air outlet hole 320 matching the inner cooling channel.
  • the air inlet is provided with a matching control valve.
  • the control valve is arranged on the side of the air intake fairing facing the motor assembly.
  • the control valve includes rotating the limit ring 5 arranged on the air intake fairing 314, and the air intake fairing passes through the screw.
  • a mounting ring 511 is fixedly provided, and the cross-sectional shape of the mounting ring is "L”. There is an arc surface that fits the inner wall of the intake fairing.
  • a sliding ring 512 is provided on the outside of the vertical ring.
  • the outer end of the sliding ring 5112 is spherical in shape. There are lubricating balls on the sliding ring.
  • the limit ring 5 is provided with a matching rotating drive assembly, and the outer circumference of the limit ring is provided with worm teeth, and the drive rotation assembly includes two worms arranged on the intake fairing to cooperate with the limit ring.
  • the worm is equipped with a micro motor 513, which drives the worm to rotate through the rotation of the micro motor.
  • the micromotor is installed on the mounting ring, and the two worms and the corresponding micromotors are arranged symmetrically about the axis of the mounting ring.
  • the guide bar includes a connecting section 509 and a closing section 510 located at the upper end of the connecting section.
  • the connecting section and the closing section are coplanar with the axis of the intake fairing.
  • the shapes of the connecting section and the closing section are arc-shaped, and the radius of the closing section is less than The radius of the connecting section, the concentric setting of the connecting section and the intake fairing.
  • the junction of the closed section and the connecting section is opposite to the edge of the air inlet, and the closed section extends out of the air inlet 315 .
  • the outer ends of the eight closed sections are provided with spherical connecting discs on the outside to improve the overall strength of the guide rod.
  • a valve plate 502 is slidably arranged on the guide rod, and the valve plate is located between the guide rod and the air intake shroud; a matching sliding column 503 and a chute 504 are arranged on the valve plate and the air intake shroud, and the chute’s The shape is spiral.
  • the outer end of the sliding column is hemispherical.
  • the sliding column is located at the lower end of the valve plate; two sliding sleeves 514 are provided inside the valve plate, and the sliding sleeves 514 are sleeved on the outside of the guide rod 501, and the two sliding sleeves cooperate with the sliding column to form a reliable sliding positioning.
  • the eight valve plates on the eight guide rods can be combined into a spherical surface covering the outside of the closed section.
  • the chute can also be a straight groove or an arc groove provided with an inclination except the helical shape, as long as the axial movement guide and the radial movement guide can be provided simultaneously.
  • the outer end of the valve plate is provided with two intersecting edges, one of which is provided with a limiting sealing groove 506, and the other edge is provided with a limiting sealing protrusion 507, and a sealing strip 508 is provided in the limiting sealing groove , the limit sealing groove and the limit sealing protrusion between adjacent valve plates can cooperate with each other.
  • the regulator of the inlet guide vane 41 includes a housing 4 fixedly connected to one end of the motor barrel 1, and the housing 4 is in the shape of a circular tube.
  • the casing 4 and the motor barrel 1 are connected by a flange.
  • the casing 4 is provided with several inlet guide vanes 41 along its circumference.
  • the inlet guide vanes 41 include a passive guide vane 42 and an active guide vane 43 connected with a driving element, and the driving element adopts a servo motor.
  • the outer side of the inlet guide vane 41 is provided with a transmission pinion 401 , and the casing 4 is provided with a transmission ring gear 402 that cooperates with all the transmission pinions 401 .
  • inlet guide vanes 41 there are twelve inlet guide vanes 41, and the twelve inlet guide vanes 41 are arranged in a circular array around the axis of the housing 4.
  • the inlet guide vanes 41 include a connecting shaft 403, and the length of the connecting shaft 403 of the driving guide vane 43 is The length of the connecting shaft 403 is greater than that of the passive guide vane 42 , and the reliable connection with the driving element is completed through the long connecting shaft 403 of the driving guide vane 43 .
  • the transmission pinion 401 is fixedly connected to the connecting shaft 403; one end of the connecting shaft 403 is provided with a mounting disk 404, and the mounting disk 404 is provided with a guide vane body 405, and the guide vane body 405 includes two oppositely arranged arc-shaped sides 406, The two arc-shaped sides 406 are bent in the same direction, one end of the two arc-shaped sides 406 intersects, the other end of the two arc-shaped sides 406 is provided with a transition arc, and the end of the guide vane body 405 connected to the installation disc 404 is provided with a transition
  • the surface 408 and the inner side wall of the housing 4 are provided with a limit groove 409 matching the transition surface 408 ;
  • the projection shape of the largest area of the guide vane body 405 on the plane where the axis of the connecting shaft 403 is located is an isosceles trapezoidal shape in which the upper base and the lower base are arc-shaped.
  • the shaded area in FIG. 5 is a schematic diagram of the cross section of the guide vane body 405 at the corresponding position.
  • the transmission pinion 401 adopts a bevel gear, and the apex angle of the bevel gear is set toward the axis of the housing 4; the outer layer of the housing 4 is provided with a step portion 410, and the inner side of the transmission large ring gear 402 is provided for connecting the transmission large ring gear 402 and the housing 4.
  • the mounting bearing 411 is fixed with a stepped ring 412 on the outside of the stepped portion 410 , and one side of the stepped ring 412 is fixedly connected to the inner ring of the mounting bearing 411 .
  • the fan assembly, the motor assembly, and the regulator of the inlet guide vane 41 are arranged in sequence, and the inlet guide vane 41 is separated from the main shaft 3, so that through holes with stable flow can be formed between the ends of the inlet guide vane 41 to ensure the wind force of the axial flow fan. At the same time, it has higher adjustment reliability.
  • the inlet guide vane 41 regulator rotates the angle of the inlet guide vane 41, and the airflow will circulate along the channel at a certain angle to the axial air intake direction, and the fluid passes through the inlet guide vane 41 regulator
  • the motor assembly drives the movable impeller 201 to do work on the fluid, the energy of the fluid increases and enters the stationary impeller 200 in the axial direction, and the stationary impeller 200 guides the fluid.
  • the pressure and temperature of the fluid decrease, and the flow rate increases. Thermal potential energy is converted into kinetic energy.
  • This application has a large flow rate and high transmission efficiency.
  • the motor assembly of the present application is provided with an internal cooling flow channel, and the internal cooling flow channel on the motor assembly can complete the air intake and take away the heat inside the motor assembly.
  • the heat dissipation of the main body is mainly completed through the flow channel on the motor barrel 1, and the heat dissipation effect is good. .
  • the limit ring can be driven to rotate, and the limit ring and the guide rod rotate. Due to the helical fit between the valve plate and the chute, the valve plate will spirally protrude along the chute when the limit ring rotates.
  • valve plates are combined to form a spherical surface, and the air inlet is sealed by the spherical surface to prevent hot air from flowing into the inner cooling channel and causing the motor to heat up.
  • the guide rod also has a supporting function. When the valve is opened, the control valve can be hidden on the back side of the intake fairing, which has high safety.

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Abstract

一种带调节器的轴流风机的风道结构，包括依次设置的风机组件、电机筒（1）和进口导叶（41）调节器；电机筒（1）包括外筒（102）和内筒（101），外筒（102）和内筒（101）之间设有外流风道；内筒（101）内部设有电机组件；内筒（101）朝向进口导叶（41）调节器的一端设有进气整流罩（314），进气整流罩（314）上设有进气口（315），主轴（3）一端固定设有正对进气口（315）的散热叶轮（316），电机筒（1）内设有对应进气口（315）的内冷却流道；进气口（315）上设有与其配合的控制阀门。其具有近似直线形的外流风道，还具有流经电机组件内部的内冷却风道，能够提高电机的散热效率。

Description

一种带调节器的轴流风机的风道结构 技术领域
本申请涉及轴流风机技术领域，尤其涉及一种带调节器的轴流风机的风道结构。
背景技术
轴流式风机通常应用在流量要求较高的场合，包括风机叶轮和机壳，是工况企业常用的一种风机。轴流风机作为一种叶轮机械，在运行时经常需要调节工质流量或压力，且对调节的精度要求较高。
中国专利文献中，专利号CN 2020215450276于2021年2月26日授权公告的实用新型专利，该申请案公开了一种长隧洞开挖通风排烟系统，包括固定架与移动架，所述固定架的顶部固定连接有风筒，所述风筒内设置有通风槽，所述通风槽内通过固定块固定连接有轴流风机，所述风筒的一端设置有第一防护网，且风筒远离第一防护网的一端连接设置有连接架，所述连接架上设置有第二防护网，且连接架上连接设置有通风管。其不足之处在于：通过整块的调节板转动来实现风量调节，风量从调节板的两侧流出，调节过程中的进风不稳，风力调节不稳定；还存在电机部分散热不易的问题，轴流风机的电机部分没有风道，散热效率低，影响轴流风机的使用寿命。
发明内容
基于现有技术中的上述不足，本发明提供了一种带调节器的轴流风机的风道结构，具有近似直线形的外流风道，还具有流经电机组件内部的内冷却风道，能够提高电机的散热效率。
本发明的另一个目的是，内流道可通过控制阀门操控，高温环境应用时可以关闭内流道，提高轴流风机的应用可靠性。
为了实现上述发明目的，本发明采用以下技术方案。
一种带调节器的轴流风机的风道结构，其特征是，包括依次设置的风机组件、电机筒和进口导叶调节器；
所述电机筒包括外筒和内筒，外筒和内筒之间设有外流风道；所述内筒内部设有电机组件；所述内筒朝向进口导叶调节器的一端设有进气整流罩，进气整流罩上设有进气口，主轴一端固定设有正对进气口的散热叶轮，电机筒内设有对应进气口的内冷却流道；
所述进气口上设有与其配合的控制阀门。
外流风道作为主体风道，完成轴流风机的导通，内冷却流道流经电机组件内部，起到提高电机部分散热的作用，主体风道接近直线形，风阻小，通风量大，风机效率高；内流道 可通过控制阀门操控，高温环境应用时可以关闭内流道，提高轴流风机的应用可靠性。。
作为优选，电机组件包括主轴、转子组件和定子组件，动叶轮和主轴固定连接，主轴驱动动叶轮转动；内筒两端分别设有配合电机组件的端盖，端盖和主轴之间通过轴承转动连接，内冷却流道包括端盖上设置的冷却孔以及定子组件和主轴之间设置的冷却间隙，内冷却流道还包括位于进气口和冷却孔之间、冷却孔和冷却间隙之间的内筒内部空腔，内筒上设有配合内冷却流道的出气孔。内冷却流道畅通设置，结构紧凑。
作为优选，进气口上设有配合的控制阀门.；控制阀门设置在进气整流罩朝向电机组件的一侧，控制阀门包括转动设置在进气整流罩上的限位圈，限位圈上设有配合的旋转驱动组件，限位圈上设有若干根导流杆，导流杆上滑动设有阀片，阀片位于导流杆和进气导流罩之间；阀片和进气导流罩上设有配合的滑柱和滑槽，滑槽的形状为螺旋形。控制阀门能够在遇到高温工况时可以通过驱动限位圈转动，限位圈和导流杆转动，由于阀片和滑槽的螺旋配合，阀片随限位圈转动时会沿滑槽螺旋伸出，从而使若干块阀片组合形成球面，通过球面密封进气口，导流杆除了导向作用外，还具有支撑的作用，在阀门打开时，控制阀门能够隐藏在进气整流罩的背侧，具有很高的安全性。
作为优选，限位圈的外周上设有蜗齿，驱动旋转组件包括在进气整流罩上设置的配合限位圈的若干根蜗杆。因为限位圈通过蜗齿和蜗杆配合，限位圈具有自锁功能，在限位圈不能转动时，阀片在滑槽内的位置也固定，因此能够形成阀片自锁，提高控制阀门的可靠性。
作为优选，风机组件包括静叶轮和动叶轮，静叶轮与电机筒的一端固定连接；动叶轮和静叶轮相邻设置；静叶轮包括与电机筒固定的外轮环，外轮环内设有内轮环，外轮环和内轮环之间设有叶片体，所述风机组件还包括固定在内轮环上的整流罩。静叶轮不仅具有流体导向的作用，还具有作为连接支撑的作用，连接了整流罩和电机筒，而且有利于通过实现动叶轮的转动密封；流体经静叶轮后通过整流罩，进入扩压管，流体的动能转化为静压能，使轴流风机的出风更加稳定；动叶轮的叶片位置和敬业轮的叶片位置对应外流风道，形成环形的吸气空腔，吸气空腔对外流风道内的流体提供可靠的环形吸力，从而提高轴流风机内气流的均匀性。
作为优选，外轮环上固定设有扩张管，扩张管的内壁形状为圆台面形，扩张管内壁的锥角朝向进口导叶调节器所在的一侧。流体的动能转化为静压能，使轴流风机的出风更加稳定。
作为优选，导流杆包括连接段和位于连接段上端的封闭段，连接段、封闭段与进气整流罩轴线共面设置，连接段和封闭段的形状均为圆弧形，封闭段的半径小于连接段的半径， 封闭段和连接段的连接处与进气口边沿相对，封闭段伸出到进气口外部。封闭段形成的球面位于连接段形成的球面外侧，在阀片伸出时起到对阀片的支撑作用。
作为优选，所述转子组件集成设置在主轴内部，主轴两端和电机筒之间分别设有磁悬浮轴承。采用主动磁悬浮轴承技术，利用电磁力实现转子悬浮，无接触、无摩擦、无需润滑油，寿命长。
作为优选，限位圈的外周上设有蜗齿，驱动旋转组件包括在进气整流罩上设置的配合限位圈的若干根蜗杆。
作为优选，阀片外端设有两相交的边沿，其中一条边沿上设有限位密封槽，另一条边沿上设有限位密封凸块，限位密封槽内设有密封条，相邻阀片之间的限位密封槽和限位密封凸块能够相互配合。阀片在沿滑槽推出配合时，相邻阀片之间的限位密封槽和限位密封凸块配合密封，并且通过限位密封槽和限位密封凸块的卡接结构也能提供防变形的支撑作用，提高阀片之间配合的可靠性。
作为优选，若干根导流杆汇交于一点，若干根导流杆绕限位圈的轴线圆周阵列设置。保证导流杆的结构稳定性，导流杆的外端汇交固定在一点上，不易变形，保证导流杆的支撑作用。
作为优选，所述内筒和外筒之间设有若干根支撑导流柱，支撑导流柱之间形成外流风道，电机组件设置在内筒内部，支撑导流柱内设有连通内筒内部和外筒外部的走线孔，外筒外侧设有底座板。电机筒起到了支撑安装电机组件和定位磁悬浮轴承连线的作用，还能用于轴流风机的气流导通，功能性好。
作为优选，动叶轮包括连接内盘、连接板、连接外环和动叶体，连接内盘固定连接在主轴上，连接外环的外侧和静叶轮的内轮环外侧面接合；连接内盘和连接外环通过连接板连接，连接板和连接外环形成连接盘上设有若干块动叶体，连接外环和连接板之间形成台阶面，台阶面上设有和连接外环内侧接触设置的密封环，连接外环和密封环相对转动设置，密封环的外周上设有配合连接外环内侧的密封齿。密封环的设置实现了动叶轮的和电机组件之间的转动密封，防止轴流风机风道内的气流散热到电机组件内而影响轴流风机的流量，保证风机的流量控制可靠。
本发明具有如下有益效果：外流风道作为主体风道，完成轴流风机的导通，内冷却流道流经电机组件内部，起到提高电机部分散热的作用，主体风道接近直线形，风阻小，通风流量大，传动效率高，通过内冷却流道的设置，电机筒内部的电机组件能够直接进风，通过进风实现电机组件内部的散热，在遇到高温工况时可以通过驱动限位圈转动，限位圈和导流 杆转动，由于阀片和滑槽的螺旋配合，阀片随限位圈转动时会沿滑槽螺旋伸出，从而使若干块阀片组合形成球面，通过球面密封进气口，导流杆除了导向作用外，还具有支撑的作用，在阀门打开时，控制阀门能够隐藏在进气整流罩的背侧，具有很高的安全性；在阀门闭合时能够关闭内冷却流道，从而防止高温工况环境冷却通道进热风造成电机过热，而在低温环境能够保证电机散热效率。
附图说明
图1是本发明的结构示意图。
图2是本发明电机组件的结构示意。
图3是本发明中静叶轮的结构示意图。
图4是本发明中静叶轮的侧视图。
图5是本发明中进口导叶的结构示意图。
图6是图5的右视图。
图7是本发明中电机筒的结构示意图。
图8是图1中A处的放大示意图。
图9是本发明中主轴和动叶轮连接的结构示意图。
图10是本发明中进气整流罩和控制阀门在控制发明打开时的结构示意图。
图11是本发明中进气整流罩内侧面和控制阀门在控制阀门闭合时的结构示意图。
图12是本发明中安装环和限位圈连接的结构示意图。
图13是本发明中阀片的结构示意图。
图中：电机筒1 内筒101 外筒102 支撑导流柱103 走线孔104 底座板105 放空槽106 端盖107 静叶轮200 动叶轮201 外轮环202 内轮环203 叶片体204 整流罩205 扩张管206 安装槽207 密封环208 动叶外环209 连接内盘210 连接板211 连接外环212 动叶体213 拉杆214 固定孔215 限位环216 预紧螺母217 主轴3 转子组件31 定子组件32 左端半轴301 右端半轴302 永磁体303 第一隔磁环304 第二隔磁环305 永磁体保护套306 前端隔套307 径向磁轴承转子308 径向轴承被测体309 右端轴肩310 推力盘311 后端隔套312 磁悬浮轴承313 进气整流罩314 进气口315 散热叶轮316 冷却孔317 冷却间隙318 内筒内部空腔319 出气孔320 壳体4 进口导叶41 被动导叶42 主动导叶43 传动小齿轮401 传动大齿圈402 连接轴403 安装圆盘404 导叶体405 弧形侧面406 过渡面408 限位凹槽409 台阶部410 安装轴承411 台阶环412 限位圈5 导流杆501 阀片502 滑柱503 滑槽504 蜗杆505 限位密封槽 506 限位密封凸块507 密封条508 连接段509 封闭段510 安装环511 滑动环512 微型电机513 滑动套514 横环515 竖环516。
具体实施方式
下面结合附图对本申请的优选实施例进行详细阐述，以使本申请的优点和特征能更易于被本领域技术人员理解，从而对本申请的保护范围做出更为清楚明确的界定,这些实施方式仅用于说明本发明，而并非对本发明的限制。
实施例，
如图1到图12所示，一种带调节器的轴流风机的风道结构，包括呈直线依次设置的风机组件、电机筒1和进口导叶41调节器。轴流风机内设有风压计或流量计等其他监测设备，能够自动控制进口导叶调节器进行风量调节。
电机组件外侧设有电机筒1；电机筒1包括内筒101和外筒102，外筒和内筒之间设有外流风道，具体为：内筒101和外筒102之间设有若干根支撑导流柱103，支撑导流柱之间形成外流风道。内筒101内部设有电机组件，支撑导流柱103内设有连通内筒101内部和外筒102外部的走线孔104，外筒102外侧设有底座板105，底座板105在外筒102两端设有对称的两块，底座板105的中间位置设有放空槽106。电机筒1的两端设有配合电机组件的端盖107，端盖107和主轴3之间通过轴承转动连接，电机筒1采用内部出风的设计，在外筒102和内筒101之间通过分开设置的支撑导流柱103形成流体通道，流体在被输送过程中能带走电机的部分热量，增强了整机的散热效果；支撑导流柱103设有五根，使得电机筒1的载荷分布更加合理；支撑导流柱103通过计算流体力学的方法，对前缘和尾缘进行了仿真分析，最大程度上减小了支撑柱对流体的阻力；走线孔104数量为三个，分别是电机动力线出线孔、前磁轴承出线孔、后磁轴承出线孔，出线孔的数量不能少于三个，否则电机动力线会和其他线形成干扰，进而影响电机的性能；底座板105和电机筒1采用一体化结构，在铸造时一体成型，使整体结构更加合理，进一步增强了电机筒1的刚性和稳定性，使得整机的抗震动性得到了增强；通过放空槽106对底座板105的结构进行了“放空”处理。从设计角度来看，底座的尺寸越大、与地面的接触面积越大，稳定性就越好。但从加工等实际情况来看，由于底座的尺寸较大且和机筒铸成一体，底座加工面的平行度很难得到保证，使得底座和地面很难完全贴合。因此在底座板105的中间部分进行“放空处理”，使得支撑方式在一定程度上变为“四点支撑”，增强了机筒的抗震性和稳定性。
风机组件包括静叶轮200和动叶轮201，静叶轮200与电机筒1的一端固定连接；动叶轮201和静叶轮200相邻设置；静叶轮200包括与电机筒1固定的外轮环202，电机筒1 的一端螺钉连接设有连接盖，静叶轮200的外轮环202螺钉固定在连接盖上。外轮环202内设有内轮环203，外轮环202和内轮环203之间设有叶片体204，风机组件还包括固定在内轮环203上的整流罩205，外轮环202上固定设有扩张管206。扩张管206的内壁形状为圆台面形。本磁悬浮轴流风机的结构中，动叶轮201和静叶轮200必须保持适当的间隙，否则动叶轮201无法转动，但是这个轴向间隙的存在，使流体在动、静叶的间隙中发生散乱现象，从而造成漏气损失，静叶轮200上设有安装槽207用于配合台阶面定位设置密封环208，能有效减少气体泄漏；静叶轮200上固定设有配合动叶轮201外端的动叶外环209，动叶外环209采用PEEK材料制成，当动叶轮201高速旋转时，叶片顶部会发生轻微变形，由于PEEK材料的特性，可对叶片起到保护作用。静叶轮200的叶顶和叶根前缘进行倒角处理，可有效降低叶片根部的应力集中效应，有效减少了叶片的疲劳破坏和断裂失效；连接板211分开设置，实现了对动叶轮201的掏空处理，在保证动叶轮201性能的前提下，重量做到最轻。
动叶轮201包括连接内盘210、连接板211、连接外环212和动叶体213，连接内盘210固定连接在主轴3上，主轴3上螺纹连接设有拉杆214，拉杆214和主轴3之间的拧入旋向和动叶轮201的旋向相反；连接内盘210内设有固定孔215，固定孔215的两端分别设有限位台阶，拉杆214穿过固定孔215，拉杆214直径小于固定孔215，拉杆214上设有直径配合固定孔215的限位环216，拉杆214外端设有预紧螺母217。连接外环212的外侧和静叶轮200的内轮环外侧面接合；连接内盘210和连接外环212通过连接板211连接，连接板211和连接外环212形成连接盘上设有若干块动叶体213，连接外环212和连接板211之间形成台阶面，台阶面上设有和连接外环212内侧接触设置的密封环208，连接外环212和密封环208相对转动设置，密封环208的外周上设有配合连接外环212内侧的密封齿。连接外环212两端的密封环208通过螺钉分别固定连接在端盖107和内轮环203上。动叶轮201采用碳纤维加树脂的复合材料制成，和传统金属合金相比，重量减小的同时，耐磨性和耐腐蚀性得到了提升。连接板211之间形成减重孔，减重孔在轮盘上呈圆周分布，使叶轮保持良好气动性能的同时，重量大大减少，有效减少了转子在旋转状态下的振动，提高了平衡性和稳定性；当磁悬浮电机关机时，悬浮的转子会跌落在保护轴承上，转子的重量越小越能延长轴承的使用寿命；动叶轮201的叶根前缘进行倒角处理，可有效降低叶片根部的应力集中效应，有效减少了叶片的疲劳破坏和断裂失效。
电机组件包括主轴3、转子组件31和定子组件32，定子组件32固定在电机筒1内，定子组件32包括铁芯和绕组。动叶轮201和主轴3固定连接，主轴3驱动动叶轮201转动；转子组件31集成设置在主轴3内部，主轴3包括左端半轴301和右端半轴302，左端半轴301 和右端半轴302之间设有圆柱形的永磁体303，永磁体303和左端半轴301、右端半轴302之间分别设有第一隔磁环304和第二隔磁环305，永磁体303外周设有两端搭接在左端半轴301和右端半轴302之间的永磁体保护套306，永磁体303、永磁体保护套306、第一隔磁环304和第二隔磁环305形成转子组件31。左端半轴301从永磁保护套向外依次套设有前端隔套307、径向磁轴承转子308和径向轴承被测体309；右端半轴302上设有配合永磁体保护套306的右端轴肩310，右端轴肩310向外依次设有推力盘311、后端隔套312、径向磁轴承转子308和径向磁轴承被测体。主轴3两端和电机筒1之间分别设有磁悬浮轴承313。电机筒1朝向进口导向调节器的一端设有进气整流罩314，进气整流罩314上设有进气口315，主轴3一端固定设有正对进气口315的散热叶轮316，电机筒1内设有对应进气口315的内冷却流道。内冷却流道包括端盖107上设置的冷却孔317以及定子组件32和主轴3之间设置的冷却间隙318，内冷却流道还包括位于进气口315和冷却孔317之间、冷却孔317和冷却间隙318之间的内筒内部空腔319，内筒上设有配合内冷却流道的出气孔320。进气口上设有配合的控制阀门.；控制阀门设置在进气整流罩朝向电机组件的一侧，控制阀门包括转动设置在进气整流罩314上的限位圈5，进气整流罩通过螺钉固定设有安装环511，安装环的横截面形状为“L”形，安装环511包括横环515和竖环516，横环515和竖环516之间设置了限位环槽，横环上设有与进气整流罩内壁贴合的弧面，竖环外侧设有滑动环512，滑动环5112的外端形状为球面形，滑动环上设有润滑滚珠，限位圈内侧和滑动环间隙配合，实现限位圈在安装环上的低摩擦转动设置。限位圈5上设有配合的旋转驱动组件，限位圈的外周上设有蜗齿，驱动旋转组件包括在进气整流罩上设置的配合限位圈两根蜗杆。蜗杆配备一微型电机513，通过微型电机转动来驱动蜗杆转动。微型电机安装在安装环上，两根蜗杆和对应的微型电机关于安装环轴线中心对称设置。限位圈5上设有八根导流杆501，八根导流杆汇交于一点，八根导流杆绕限位圈的轴线圆周阵列设置。导流杆包括连接段509和位于连接段上端的封闭段510，连接段、封闭段与进气整流罩轴线共面设置，连接段和封闭段的形状均为圆弧形，封闭段的半径小于连接段的半径，连接段和进气整流罩的同心设置。封闭段和连接段的连接处与进气口边沿相对，封闭段伸出到进气口315外部。八根封闭段的外端设有外侧为球面形的连接盘，提高导流杆整体的强度。导流杆上滑动设有阀片502，阀片位于导流杆和进气导流罩之间；阀片和进气导流罩上设有配合的滑柱503和滑槽504，滑槽的形状为螺旋形。滑柱的外端为半球形。滑柱位于阀片的下端；阀片内侧设有两个滑动套514，滑动套514套设在导流杆501外侧，两个滑动套配合滑柱形成可靠的滑动定位。八根导流杆上的八块阀片能够组合成盖在封闭段外侧的球面。滑槽除了螺旋形之外还可以是倾斜设置的直槽或者圆弧槽，只需能够同 时提供轴向运动导向和径向运动导向即可。如图13所示，阀片外端设有两相交的边沿，其中一条边沿上设有限位密封槽506，另一条边沿上设有限位密封凸块507，限位密封槽内设有密封条508，相邻阀片之间的限位密封槽和限位密封凸块能够相互配合。
进口导叶41调节器包括与电机筒1一端固定连接的壳体4，壳体4的形状为圆管形。壳体4和电机筒1通过法兰连接。壳体4沿其周向设有若干个进口导叶41，进口导叶41包括被动导叶42和连接驱动元件的主动导叶43，驱动元件采用伺服电机。进口导叶41外侧设有传动小齿轮401，壳体4上转动设有配合所有传动小齿轮401的传动大齿圈402。本实施例中，进口导叶41设有十二个，十二个进口导叶41绕壳体4轴线呈圆周阵列设置，进口导叶41包括连接轴403，主动导叶43的连接轴403长度大于被动导叶42的连接轴403长度，通过主动导叶43的长连接轴403完成与驱动元件的可靠连接。传动小齿轮401固定连接在连接轴403上；连接轴403的一端设有安装圆盘404，安装圆盘404上设有导叶体405，导叶体405包括两个相对设置弧形侧面406，两个弧形侧面406同向弯曲，两个弧形侧面406的一端相交设置，两个弧形侧面406的另一端设有过渡圆弧，导叶体405连接安装圆盘404的一端设有过渡面408，壳体4的内侧壁上设有配合过渡面408的限位凹槽409；导叶体405在安装圆盘404上的连接面位于安装圆盘404轴线的一侧。导叶体405在连接轴403轴线所在平面的最大面积投影形状为上底和下底呈圆弧形的等腰梯形形状。图5中的阴影区域为对应位置的导叶体405横截面的示意图。传动小齿轮401采用锥齿轮，锥齿轮的顶角朝向壳体4轴线设置；壳体4外层设有台阶部410，传动大齿圈402内侧设有用于连接传动大齿圈402和壳体4的安装轴承411，台阶部410的外侧固定设有台阶环412，台阶环412的一侧和安装轴承411的内圈固定连接。
本申请中风机组件、电机组件和进口导叶41调节器依次设置，进口导叶41脱离主轴3，从而进口导叶41的端部之间可以形成流量稳定的通孔，保证轴流风机的风力作用同时，具有更高的调节可靠性。风力调节时，根据不同的工况，进口导叶41调节器旋转进口导叶41的角度，气流就会沿着与轴向进气方向呈一定角度的通道流通，流体经过进口导叶41调节器后进入电机筒1，电机组件驱动动叶轮201对流体做功，流体的能量增加并沿轴向进入静叶轮200，静叶轮200对流体进行导向，此时流体的压力和温度降低，流速增加，将热力势能转化为动能，本申请的流量大，传动效率高，能够根据工况需求调节转速，实现压力、流量的调整，可节约更多电能，更好的保护风机。本申请的电机组件内部设置了内冷却流道，电机组件上内冷却流道能够完成进风，带走电机组件内部的热量，主体散热主要是通过电机筒1上的流道完成，散热效果好。在遇到高温工况时可以通过驱动限位圈转动，限位圈和导 流杆转动，由于阀片和滑槽的螺旋配合，阀片随限位圈转动时会沿滑槽螺旋伸出，从而使若干块阀片组合形成球面，通过球面密封进气口，防止热空气流入到内冷却流道造成电机升温。导流杆除了导向作用外，还具有支撑的作用，在阀门打开时，控制阀门能够隐藏在进气整流罩的背侧，具有很高的安全性。
以上所述仅为本申请的优选实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种带调节器的轴流风机的风道结构，其特征是，包括依次设置的风机组件、电机筒和进口导叶调节器；
    所述电机筒包括外筒和内筒，外筒和内筒之间设有外流风道；所述内筒内部设有电机组件；所述内筒朝向进口导叶调节器的一端设有进气整流罩，进气整流罩上设有进气口，主轴一端固定设有正对进气口的散热叶轮，电机筒内设有对应进气口的内冷却流道；
    所述进气口上设有与其配合的控制阀门。
  2. 根据权利要求1所述的一种带调节器的轴流风机的风道结构，其特征是，所述电机组件包括主轴、转子组件和定子组件，动叶轮和主轴固定连接，主轴驱动动叶轮转动；内筒两端分别设有配合电机组件的端盖，端盖和主轴之间通过轴承转动连接，内冷却流道包括端盖上设置的冷却孔以及定子组件和主轴之间设置的冷却间隙，内冷却流道还包括位于进气口和冷却孔之间、冷却孔和冷却间隙之间的内筒内部空腔，内筒上设有配合内冷却流道的出气孔。
  3. 根据权利要求1或2所述的一种带调节器的轴流风机的风道结构，其特征是，所述控制阀门设置在进气整流罩朝向电机组件的一侧，控制阀门包括转动设置在进气整流罩上的限位圈，限位圈上设有配合的旋转驱动组件，限位圈上设有若干根导流杆，导流杆上滑动设有阀片，阀片位于导流杆和进气导流罩之间；阀片和进气导流罩上设有配合的滑柱和滑槽，滑槽的形状为螺旋形。
  4. 根据权利要求3所述的一种带调节器的轴流风机的风道结构，其特征是，所述限位圈的外周上设有蜗齿，旋转驱动组件包括在进气整流罩上设置的配合限位圈的若干根蜗杆。
  5. 根据权利要求1所述的一种带调节器的轴流风机的风道结构，其特征是，所述风机组件包括静叶轮和动叶轮，静叶轮与电机筒的一端固定连接；动叶轮和静叶轮相邻设置；静叶轮包括与电机筒固定的外轮环，外轮环内设有内轮环，外轮环和内轮环之间设有叶片体，所述风机组件还包括固定在内轮环上的整流罩。
  6. 根据权利要求5所述的一种带调节器的轴流风机的风道结构，其特征是，所述外轮环上固定设有扩张管，扩张管的内壁形状为圆台面形，扩张管内壁的锥角朝向进口导叶调节器所在的一侧。
  7. 根据权利要求3所述的一种带调节器的轴流风机的风道结构，其特征是，所述导流杆包括连接段和位于连接段上端的封闭段，连接段、封闭段与进气整流罩轴线共面设置，连接段和封闭段的形状均为圆弧形，封闭段的半径小于连接段的半径，封闭段和连接段的连接处与进气口边沿相对，封闭段伸出到进气口外部。
  8. 根据权利要求1所述的一种带调节器的轴流风机的风道结构，其特征是，所述转子组件集 成设置在主轴内部，主轴两端和电机筒之间分别设有磁悬浮轴承。
  9. 根据权利要求1所述的一种带调节器的轴流风机的风道结构，其特征是，所述内筒和外筒之间设有若干根支撑导流柱，支撑导流柱之间形成外流风道，支撑导流柱内设有连通内筒内部和外筒外部的走线孔，外筒外侧设有底座板。
  10. 根据权利要求5所述的一种带调节器的轴流风机的风道结构，其特征是，所述动叶轮包括连接内盘、连接板、连接外环和动叶体，连接内盘固定连接在主轴上，连接外环的外侧和静叶轮的内轮环外侧面接合；连接内盘和连接外环通过连接板连接，连接板和连接外环形成连接盘上设有若干块动叶体，连接外环和连接板之间形成台阶面，台阶面上设有和连接外环内侧接触设置的密封环，连接外环和密封环相对转动设置，密封环的外周上设有配合连接外环内侧的密封齿。
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