CN114704492A - High-temperature and high-pressure resistant efficient centrifugal fan - Google Patents
High-temperature and high-pressure resistant efficient centrifugal fan Download PDFInfo
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- CN114704492A CN114704492A CN202210437236.6A CN202210437236A CN114704492A CN 114704492 A CN114704492 A CN 114704492A CN 202210437236 A CN202210437236 A CN 202210437236A CN 114704492 A CN114704492 A CN 114704492A
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- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 66
- 239000003921 oil Substances 0.000 claims abstract description 47
- 239000010687 lubricating oil Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 56
- 230000006837 decompression Effects 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 239000010721 machine oil Substances 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 8
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- 230000000694 effects Effects 0.000 description 7
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- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 239000000284 extract Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
-
- 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
- F04D27/007—Conjoint control of two or more different functions
-
- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- 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
-
- 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
- F04D29/053—Shafts
-
- 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
-
- 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
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/287—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps with adjusting means
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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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
- 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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Abstract
The invention discloses a high-temperature and high-pressure resistant efficient centrifugal fan, and belongs to the technical field of centrifugal fans. The invention comprises a fan shell, a centrifugal rotor is rotatably arranged in the fan shell, an oil lubricating oil path is arranged in the fan shell, a high-pressure transfer mechanism and a pressure loss protection mechanism are arranged outside the fan shell, the oil lubricating oil path is used for lubricating and radiating the whole device, the high-pressure transfer mechanism is used for changing the working mode of the centrifugal fan, and the pressure loss protection mechanism is used for protecting and cleaning the centrifugal rotor.
Description
Technical Field
The invention relates to the technical field of centrifugal fans, in particular to a high-temperature and high-pressure resistant efficient centrifugal fan.
Background
The centrifugal fan used in the market at present can improve the gas pressure by means of the input mechanical energy to achieve the function of exhausting and delivering gas, the figure of the centrifugal fan can be seen in the fields of ventilation and induced air of a factory boiler, mine tunnels, ship propulsion, drying and selecting of grains, dust exhaust, cooling and the like, the centrifugal fan is often applied to a high-temperature and high-pressure system based on the air supply characteristics of the centrifugal fan, such as the smelting industry, although the centrifugal fan is rarely applied to precise occasions, any material is affected by expansion and contraction, the joint of an induced air rotor of the centrifugal fan and a machine body can be extruded and uneven stress can be caused, the transmission shaft is abraded, the abrasion is aggravated by long-term high-temperature environment work, and the equipment vibration is caused.
The inertia air supply of the centrifugal fan is greatly influenced by the pressure of the system, when the pressure of the system is close to the rated output air pressure of the centrifugal fan, the centrifugal fan cannot continuously supply air to the system, air causes interference in a machine body, the rotating speed of blades is unstable, a high-pressure system causes sudden drop of the air pressure of the system during pressure relief, and the sudden change of the air pressure causes sudden change of the air flow in the centrifugal fan, so that impact is caused on the blades, and a transmission main shaft is damaged.
Disclosure of Invention
The invention aims to provide a high-efficiency centrifugal fan resistant to high temperature and high pressure, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a high-efficient centrifugal fan of high temperature resistant high pressure, includes the fan shell, centrifugal rotor is installed to the fan shell internal rotation, sets up the lubricated oil circuit of machine oil in the fan shell, and the fan shell is provided with high-pressure transfer mechanism, decompression protection mechanism outward, machine oil lubrication circuit lubricates and dispels the heat whole device, high-pressure transfer mechanism is used for changing centrifugal fan's mode, decompression protection mechanism protects and clears up centrifugal rotor.
Furthermore, an air inlet and an air outlet are arranged on the fan shell, transmission shafts are arranged on two end faces of the centrifugal rotor, conical surfaces are arranged on the two transmission shafts, the centrifugal rotor is rotatably connected with the fan shell through the conical surfaces of the two transmission shafts, a cavity and a plurality of sliding chutes are arranged in the centrifugal rotor, telescopic blades are slidably arranged in each sliding chute, the two transmission shafts are of a hollow structure, the hollow part forms a sliding block cavity, a pressing sliding block is slidably arranged in the sliding block cavity close to the air inlet, a quick return sliding block is slidably arranged in the other sliding block cavity, a sliding block spring is connected between the quick return sliding block and the transmission shafts, the cavity, the plurality of sliding chutes and the two sliding block cavities are mutually communicated, hydraulic oil is filled in the communicated area, the centrifugal rotor rotates, and air around the telescopic blades is driven to generate a movement trend, the air is thrown out from the air outlet by inertia, the air pressure in the fan shell is reduced, and the air is sucked into the centrifugal fan from the air inducing port.
Furthermore, two ends of the fan shell are provided with inner cone bearing bushes in a sliding manner, at least two expansion blocks are arranged on the end face of each inner cone bearing bush positioned in the fan shell, an inner fixing frame is fixedly arranged on each expansion block, each inner fixing frame is fixedly arranged on the inner wall of the fan shell, the inner ring of each inner cone bearing bush is arranged in a conical surface manner, the conical surface of each inner cone bearing bush is rotatably connected with the conical surface of the transmission shaft, a sealing felt ring is respectively arranged at the joint of each of the two ends of each inner cone bearing bush and the transmission shaft, an oil through hole is formed in each inner cone bearing bush and is communicated with the engine oil lubricating oil path, when the temperature of the working environment of the centrifugal fan rises, the temperature of the centrifugal rotor rises and expands, the two expansion blocks are made of the same material as the transmission shaft, the expansion blocks expand in the same proportion when being heated, and extrude the two inner cone bearing bushes to move outwards simultaneously, the moving distance of the inner cone bearing bush compensates the axial displacement of a transmission shaft of the centrifugal rotor, so that the conical surface of the inner cone bearing bush and the conical surface of the transmission shaft constantly keep the most appropriate degree of elastic fit; through the setting of interior taper bush and inflation piece, avoid the junction interference of transmission shaft and fan shell, realize the effect of antifriction, make centrifugal fan adapt to the operational environment of high temperature.
Furthermore, an oil tank, a gear pump, an oil filter and a radiator are arranged outside the fan shell, the oil tank, the gear pump, the oil filter and the radiator are connected in the same hydraulic pipeline, the hydraulic pipeline is connected with the oil lubricating oil pipeline, the gear pump extracts lubricating oil in the oil tank and conveys the lubricating oil to the oil lubricating oil pipeline through a pipeline, the lubricating oil firstly enters the joint of the inner cone bearing bush and the transmission shaft through an oil through hole, so that an oil film is formed between the inner cone bearing bush and the transmission shaft, solid friction is converted into liquid friction, the sealing felt ring blocks the lubricating oil from flowing out from the position between the inner cone bearing bush and the transmission shaft, the lubricating oil continuously enters the fan shell through another oil through hole, a plurality of oil pipes are arranged inside the fan shell, the lubricating oil absorbs heat in the fan shell and then flows out, and then returns to the oil tank through the oil filter and the radiator, the effect of cooling down the centrifugal fan in circulation when having realized rotating lubricated to centrifugal rotor.
Further, the high-pressure transferring mechanism comprises an air pressure sensor, at least one pair of air cylinders, an air suction pipe and a front box body, the air pressure sensor is arranged at an air outlet of the fan shell and connected with a control system, the at least one pair of air cylinders are symmetrically arranged on two end faces of the fan shell, a piston rod of each air cylinder penetrates through the fan shell, an air suction end adapter plate is arranged inside the fan shell close to the air suction opening in a sliding mode, an inner adapter plate is arranged inside the fan shell at a position far away from the air suction opening in a sliding mode, the air suction end adapter plate and the inner adapter plate are both connected with the piston rod, the air suction pipe is arranged at the top of the fan shell and communicated with the inside of the fan shell, an electromagnetic valve is arranged at the upper end of the air suction pipe and seals the air suction pipe, a servo motor is arranged inside the front box body, the servo motor is connected with a control system, a gear is installed on a motor shaft of the servo motor, a rack ejector rod is installed in a front box body in a sliding mode, the rack ejector rod is meshed with the gear, one end of the rack ejector rod extends into a sliding block cavity, the rack ejector rod is connected with a pressure applying sliding block in a rotating mode, when the pressure in an air supply system rises, a pressure sensor transmits a pressure signal to the control system, the control system controls piston rods of all air cylinders to move, the piston rods push an air induction end adapter plate and an inner adapter plate to be close to each other, the end face contour of one end, close to each other, of the air induction end adapter plate and the inner adapter plate is the same as that of a centrifugal rotor, the air induction end adapter plate and the inner adapter plate are clamped to the centrifugal rotor and then attached to the two end faces of the centrifugal rotor, the control system controls the servo motor to rotate, the servo motor drives the gear to rotate, the gear enables the rack ejector rod to move, the rack ejector rod pushes the pressure applying sliding block to extrude hydraulic oil in the cavity into a plurality of sliding grooves, the telescopic blades completely extend out of the centrifugal rotor to be contacted with the inner contour of the fan shell, an independent cavity is formed between every two telescopic blades, the control system opens the electromagnetic valve, when two adjacent telescopic blades rotate through the air suction pipe, the volume of the cavity is increased, air is sucked from the air suction pipe, when two adjacent telescopic blades rotate through the air outlet, the volume of the cavity is reduced, and the air is extruded from the air outlet; the inertial air supply of the original centrifugal fan is changed into forced compressed air by changing the positions of the two adapting plates and the telescopic blades under the high-pressure working environment, so that the centrifugal fan adapts to the higher-pressure working environment.
Further, the decompression protection mechanism comprises a rear box body and a sliding ejector rod, the sliding ejector rod is slidably mounted in the rear box body, the sliding ejector rod extends into a sliding block cavity, the sliding ejector rod is in contact with a quick return sliding block, triangular notches are symmetrically formed in the sliding ejector rod, the triangular notches are arranged in a pair, a main wedge block and an auxiliary wedge block are respectively arranged at the triangular notches, the main wedge block and the auxiliary wedge block are rotatably mounted in the rear box body, the triangular notches are clamped by the main wedge block and the auxiliary wedge block, pin columns are arranged at the upper end and the lower end of the main wedge block, pin columns are arranged at the upper end of the auxiliary wedge block, a reversing rod is rotatably mounted at the top of the rear box body, one end of the reversing rod is in sliding connection with the upper pin columns of the main wedge block, a pushing column is arranged at the other end of the reversing rod, and the pushing column is in contact with the upper pin columns of the auxiliary wedge block.
Furthermore, a pressure measuring pipe is connected between the rear box body and the air outlet, the pressure measuring pipe extends into the rear box body, a pressure measuring slide block is slidably mounted in one section of the pressure measuring pipe of the rear box body, a spring is arranged between the pressure measuring slide block and the pressure measuring pipe, a driven hook is arranged at one end, facing the interior of the rear box body, of the pressure measuring slide block, the driven hook is in contact with a lower pin of the main wedge block, a sleeve is rotatably mounted at the lower section of the interior of the rear box body, a handle is sleeved in the sleeve, a tension spring is connected between the handle and the sleeve, a rotary sliding seat is rotatably mounted at one end of the sliding ejector rod, the handle is in sliding connection with the rotary sliding seat, a guide frame is arranged on the handle and is in contact with the lower pin of the main wedge block, when the working system is suddenly depressurized, the pressure measuring slide block rapidly sucks and moves in the pressure measuring pipe, and the driven hook stirs the lower pin of the main wedge block, the main wedge blocks are expanded outwards, when the main wedge blocks move, the upper pin columns of the main wedge blocks push the reversing rods to rotate, the reversing rods push the upper pin columns of the auxiliary wedge blocks through the push posts, the auxiliary wedge blocks move, the two wedge blocks simultaneously relieve the limitation on the sliding ejector rods, the slider springs release elastic potential energy to push out the quick return sliders, the quick return sliders suck hydraulic oil in a plurality of sliding grooves into the cavities, all telescopic blades retract into the centrifugal rotor, the blades are prevented from being impacted by sudden air pressure change, the transmission shaft is prevented from being damaged, and automatic detection and pressure loss protection are achieved; when flexible blade indentation centrifugal rotor, the dust that flexible blade surface area was stayed also can be scraped, realizes the automatic clearance to flexible blade, and the promotion handle makes the slip ejector pin reset, when upwards pulling the handle, the leading truck also can promote the outside expansion of main wedge, carries out manual debugging work.
Furthermore, the device still includes power motor, install driving pulley on power motor's the motor shaft, be provided with the band pulley on centrifugal rotor's the transmission shaft, be connected with the V area between driving pulley and the band pulley, power motor rotates, and driving pulley rotates simultaneously, and driving pulley passes through the V area with torsion transmission to the band pulley on, drives centrifugal rotor through the transmission shaft and rotates.
Compared with the prior art, the invention has the following beneficial effects:
1. the material of inflation piece is the same with the material of transmission shaft, the inflation piece takes place that the inflation is crowded can press two interior taper bush and outwards move simultaneously, axial displacement takes place for the transmission shaft of interior taper bush removal distance compensation centrifugal rotor, make the conical surface of interior taper bush and the conical surface of transmission shaft keep optimum clearance fit degree constantly, through the setting of interior taper bush and inflation piece, avoid the junction interference of transmission shaft and fan housing, realize the effect of antifriction, make centrifugal fan adapt to the operational environment of high temperature, utilize hydraulic pressure pipeline to realize rotating lubricated when to centrifugal rotor, also circulate the refrigerated effect of cooling to centrifugal fan.
2. Through setting up the position of control induced air end adapter plate and interior adapter plate, with two terminal surface laminating of centrifugal rotor, the interior profile of the flexible blade of back control and fan shell contacts, make all form independent cavity between per two flexible blades, when two adjacent flexible blades rotated the aspiration channel, from the aspiration channel intake air, when two adjacent flexible blades rotated the air outlet, gas was extruded from the air outlet, through changing the position of two adapter plates and flexible blade under highly compressed operational environment, change original centrifugal fan's inertial air supply into and force the pressure wind, make centrifugal fan adapt to more highly compressed operational environment.
3. Drive the pressure measuring slider and remove rapidly when losing pressure suddenly through operating system, utilize the driven hook to stir the voussoir and remove the restriction to the slip ejector pin, the hydraulic oil suction cavity in the slider with a plurality of spout is returned to the speed, all flexible blades retract to centrifugal rotor in, avoid atmospheric pressure sudden change to cause the impact to the blade, destroy the transmission shaft, realize automated inspection and decompression protection, when flexible blade retracts in centrifugal rotor, the dust that flexible blade surface is long-pending remains also can be scraped down, realize the automatic clearance to flexible blade.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic external view of the present invention;
FIG. 3 is a schematic view of the overall appearance angle-down configuration of the present invention;
FIG. 4 is a schematic view of the centrifugal rotor and fan housing assembly of the present invention;
FIG. 5 is an internal schematic view of the centrifugal rotor and fan housing mounting of the present invention;
FIG. 6 is a schematic view of the internal structure of the blower housing of the present invention;
FIG. 7 is an enlarged view of a portion of the area A of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the connection of the interior to the exterior of a centrifuge rotor according to the present invention;
FIG. 9 is a top view of the internal structure of the rear seal box of the present invention;
FIG. 10 is a schematic illustration of a portion of the structure of FIG. 8 in accordance with the present invention;
FIG. 11 is an enlarged view of a portion of the invention shown in FIG. 8;
in the figure: 1. a fan housing; 2. a centrifugal rotor; 3. a telescopic blade; 4. a pulley; 5. a pressure applying slider; 601. a quick return slide block; 602. a slider spring; 701. an expansion block; 702. an inner fixing frame; 8. an inner cone bearing bush; 9. sealing the felt ring; 101. the air inducing end is matched with the plate; 102. an inner adapter plate; 11. a cylinder; 12. an air suction pipe; 13. an electromagnetic valve; 14. a power motor; 15. a driving pulley; 16. a V-band; 171. a rear box body; 172. a front box body; 18. a servo motor; 19. a gear; 20. a rack ejector rod; 21. sliding the ejector rod; 221. a main wedge block; 222. a secondary wedge block; 23. a reversing lever; 24. pushing the column; 25. rotating the sliding seat; 261. a handle; 262. a tension spring; 27. a sleeve; 28. a guide frame; 29. a piezometric tube; 30. a pressure measuring slide block; 31. and a driven hook.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a high-efficient centrifugal fan of high temperature resistant high pressure, includes fan housing 1, and centrifugal rotor 2 is installed to fan housing 1 internal rotation, sets up the lubricated oil circuit of machine oil in the fan housing 1, and fan housing 1 is provided with high pressure transfer mechanism, decompression protection mechanism outward, and the lubricated and heat dissipation of whole device is carried out to the machine oil lubricating oil circuit, and high pressure transfer mechanism is used for changing centrifugal fan's mode, and decompression protection mechanism protects and clears up centrifugal rotor 2.
The invention comprises a power motor 14, a motor shaft of the power motor 14 is provided with a driving belt wheel 15, a transmission shaft of a centrifugal rotor 2 is provided with a belt wheel 4, a V belt 16 is connected between the driving belt wheel 15 and the belt wheel 4, the power motor 14 rotates, the driving belt wheel 15 rotates simultaneously, the driving belt wheel 15 transmits torsion to the belt wheel 4 through the V belt 16, the centrifugal rotor 2 is driven to rotate through the transmission shaft, a draught opening and an air outlet are arranged on a fan shell 1, the two end surfaces of the centrifugal rotor 2 are respectively provided with the transmission shaft, the two transmission shafts are respectively provided with a conical surface, the centrifugal rotor 2 is rotatably connected with the fan shell 1 through the conical surfaces of the two transmission shafts, the interior of the centrifugal rotor 2 is provided with a cavity and a plurality of sliding chutes, each sliding chute is internally provided with a telescopic blade 3 in a sliding way, the two transmission shafts are both in a hollow structure, a hollow part forms a sliding block cavity, and a pressure-applying sliding block 5 is arranged in the sliding block cavity close to the draught opening, another slider chamber slidable mounting has fast slider 601 of returning, has to return to be connected with slider spring 602 between slider 601 and the transmission shaft fast, and cavity, a plurality of spout and two slider chambers communicate each other, and the regional intussuseption of intercommunication is filled with hydraulic oil, and centrifugal rotor 2 rotates, and the air around the flexible blade 3 is driven and is produced the motion trend, utilizes inertia to throw away from the air outlet, and the atmospheric pressure in the fan shell 1 reduces, and gas is in the centrifugal fan from induced air mouth department suction.
The two ends of the fan shell 1 are both provided with inner cone bearing bushes 8 in a sliding manner, the end face of each inner cone bearing bush 8, which is positioned in the fan shell 1, is provided with two expansion blocks 701, each expansion block 701 is fixedly provided with an inner fixing frame 702, each inner fixing frame 702 is fixedly arranged with the inner wall of the fan shell 1, the inner ring of each inner cone bearing bush 8 is arranged as a conical surface, the conical surface of each inner cone bearing bush 8 is rotatably connected with the conical surface of the transmission shaft, the joint of the two ends of each inner cone bearing bush 8 and the transmission shaft is respectively provided with a sealing felt ring 9, the inner part of each inner cone bearing bush 8 is provided with an oil through hole, the oil through holes are communicated with an engine oil lubricating oil path, when the temperature of the working environment of the centrifugal fan rises, the centrifugal rotor 2 expands due to the rise of the temperature, the two expansion blocks 701 are made of the same material as the transmission shaft, the proportion of the expansion blocks which expand when being heated is the inner cone expansion blocks 701, the two expansion blocks 8 move outwards simultaneously when being expanded, the moving distance of the inner cone bearing bush 8 compensates the axial displacement of the transmission shaft of the centrifugal rotor 2, so that the conical surface of the inner cone bearing bush 8 and the conical surface of the transmission shaft constantly keep the most appropriate degree of elastic fit; through the setting of interior taper bearing bush 8 and inflation piece 701, avoid the junction interference of transmission shaft and fan housing 1, realize the effect of antifriction, make centrifugal fan adapt to the operational environment of high temperature.
An oil tank, a gear pump, an oil filter and a radiator are arranged outside the fan shell 1, the oil tank, the gear pump, the oil filter and the radiator are connected in the same hydraulic pipeline, the hydraulic pipeline is connected with the oil lubricating oil pipeline, the gear pump extracts lubricating oil in the oil tank and conveys the lubricating oil to the oil lubricating oil pipeline through a pipeline, the lubricating oil firstly enters the joint of the inner cone bearing bush 8 and the transmission shaft through an oil through hole to form an oil film between the inner cone bearing bush 8 and the transmission shaft, solid friction is converted into liquid friction, the sealing felt ring 9 blocks the lubricating oil from flowing out from between the inner cone bearing bush 8 and the transmission shaft, the lubricating oil continuously enters the fan shell 1 through another oil through hole, a plurality of oil pipes are arranged inside the fan shell 1, the lubricating oil absorbs heat in the fan shell 1 and then flows out and returns to the oil tank through the oil filter and the radiator, the effect of cooling down the centrifugal fan in a circulating way is realized while the centrifugal rotor 2 is lubricated in a rotating way.
The high-pressure transferring mechanism comprises an air pressure sensor, four air cylinders 11, an air suction pipe 12 and a front box body 172, wherein the air pressure sensor is arranged at an air outlet of a fan shell 1 and is connected with a control system, at least one pair of air cylinders 11 are symmetrically arranged on two end faces of the fan shell 1, a piston rod of each air cylinder 11 penetrates through the fan shell 1, an air suction end adapting plate 101 is arranged inside the fan shell 1 close to the air suction opening in a sliding manner, an inner adapting plate 102 is arranged inside the fan shell 1 at a position far away from the air suction opening in a sliding manner, the air suction end adapting plate 101 and the inner adapting plate 102 are both connected with the piston rod, the air suction pipe 12 is arranged at the top of the fan shell 1, the air suction pipe 12 is communicated with the inside of the fan shell 1, an electromagnetic valve 13 is arranged at the upper end of the air suction pipe 12, the electromagnetic valve 13 blocks the air suction pipe 12 from entering and exiting, the front box body 172 is internally provided with a servo motor 18, and the servo motor 18 is connected with the control system, a gear 19 is installed on a motor shaft of a servo motor 18, a rack ejector rod 20 is installed in a front box body 172 in a sliding mode, the rack ejector rod 20 is meshed with the gear 19, one end of the rack ejector rod 20 extends into a sliding block cavity, the rack ejector rod 20 is connected with a pressure applying sliding block 5 in a rotating mode, when pressure in an air supply system rises, a pressure sensor transmits a pressure signal to a control system, the control system controls piston rods of all air cylinders 11 to move, the piston rods push an air induction end adapter plate 101 and an inner adapter plate 102 to be close to each other, the end face contour of one end, close to each other, of the air induction end adapter plate 101 and the inner adapter plate 102 is identical to that of a centrifugal rotor 2, the air induction end adapter plate 101 and the inner adapter plate 102 are clamped to the centrifugal rotor 2 and then attached to the two end faces of the centrifugal rotor 2, the control system controls the servo motor 18 to rotate, the servo motor 18 drives the gear 19 to rotate, and the gear 19 enables the rack ejector rod 20 to move, the rack ejector rod 20 pushes the pressing slide block 5 to extrude hydraulic oil in the cavity into a plurality of sliding grooves, the telescopic blades 3 completely extend out of the centrifugal rotor 2 to be in contact with the inner contour of the fan shell 1, an independent cavity is formed between every two telescopic blades 3, the control system opens the electromagnetic valve 13, when two adjacent telescopic blades 3 rotate through the air suction pipe 12, the volume of the cavity is increased, air is sucked from the air suction pipe 12, when two adjacent telescopic blades 3 rotate through the air outlet, the volume of the cavity is reduced, and the air is extruded from the air outlet; under the high-pressure working environment, the positions of the two adapting plates and the telescopic blades 3 are changed, so that the inertial air supply of the original centrifugal fan is changed into forced compressed air, and the centrifugal fan is suitable for the higher-pressure working environment.
The decompression protection mechanism comprises a rear box body 171 and a sliding ejector rod 21, wherein the sliding ejector rod 21 is installed in the rear box body 171 in a sliding mode, the sliding ejector rod 21 extends into a sliding block cavity, the sliding ejector rod 21 is in contact with a quick return sliding block 601, triangular notches are symmetrically formed in the sliding ejector rod 21, a pair of triangular notches are respectively provided with a main wedge block 221 and an auxiliary wedge block 222, the main wedge block 221 and the auxiliary wedge block 222 are rotatably installed in the rear box body 171, the triangular notches are clamped by the main wedge block 221 and the auxiliary wedge block 222, pin columns are arranged at the upper end and the lower end of the main wedge block 221, pin columns are arranged at the upper end of the auxiliary wedge block 222, a reversing rod 23 is rotatably installed at the top of the rear box body 171, one end of the reversing rod 23 is in sliding connection with the upper pin column of the main wedge block 221, a push column 24 is arranged at the other end of the reversing rod 23, and the push column 24 is in contact with the upper pin column of the auxiliary wedge block 222.
A pressure measuring pipe 29 is connected between the rear box body 171 and the air outlet, the pressure measuring pipe 29 extends into the rear box body 171, a pressure measuring slide block 30 is arranged in one section of the pressure measuring pipe 29 of the rear box body 171 in a sliding mode, a spring is arranged between the pressure measuring slide block 30 and the pressure measuring pipe 29, a driven hook 31 is arranged at one end, facing the interior of the rear box body 171, of the pressure measuring slide block 30, the driven hook 31 is in contact with a lower pin column of the main wedge block 221, a sleeve 27 is rotatably arranged at the lower section of the interior of the rear box body 171, a handle 261 is sleeved in the sleeve 27, a tension spring 262 is connected between the handle 261 and the sleeve 27, a rotary sliding seat 25 is rotatably arranged at one end of the sliding ejector rod 21, the handle 261 is in sliding connection with the rotary sliding seat 25, a guide frame 28 is arranged on the handle 261, the guide frame 28 is in contact with the lower pin column of the main wedge block 221, when the working system is suddenly decompressed, the pressure measuring slide block 30 quickly sucks and moves in the pressure measuring pipe 29, the lower pin column of the main wedge block 221 is pulled by the driven hook 31, the main wedge block 221 is expanded outwards, when the main wedge block 221 moves, the upper pin column of the main wedge block 221 pushes the reversing rod 23 to rotate, the reversing rod 23 pushes the upper pin column of the auxiliary wedge block 222 through the push column 24, the auxiliary wedge block 222 moves, the two wedge blocks simultaneously remove the limitation on the sliding push rod 21, the slide block spring 602 releases elastic potential energy to push the quick return slide block 601 out, the quick return slide block 601 sucks hydraulic oil in a plurality of sliding grooves into a cavity, all the telescopic blades 3 are retracted into the centrifugal rotor 2, the blades are prevented from being impacted by sudden change of air pressure, a transmission shaft is prevented from being damaged, and automatic detection and pressure loss protection are realized; when flexible blade 3 retracted in centrifugal rotor 2, the dust that flexible blade 3 surface area remained also can be scraped off, realizes the automatic clearance to flexible blade 3, and push handle 261 makes slip ejector pin 21 reset, when upwards pulling handle 261, leading truck 28 also can promote the outside expansion of main voussoir 221, carries out manual debugging work.
The working principle of the invention is as follows: when the centrifugal fan is used, an operator starts the power motor 14 to rotate, the driving belt wheel 15 rotates simultaneously, the driving belt wheel 15 transmits torque to the belt wheel 4 through the V belt 16, the centrifugal rotor 2 is driven to rotate through the transmission shaft, the centrifugal rotor 2 rotates, air around the telescopic blades 3 is driven to generate a motion trend and is thrown out from the air outlet through inertia, air pressure in the fan shell 1 is reduced, air is sucked into the centrifugal fan from the air induction port, if the working environment temperature of the centrifugal fan rises, the temperature of the centrifugal rotor 2 rises to enable the centrifugal rotor to expand, the expansion block 701 expands to extrude the two inner cone bearing bushes 8 to move outwards simultaneously, the moving distance of the inner cone bearing bushes 8 compensates for axial displacement of the transmission shaft of the centrifugal rotor 2, the conical surface of the inner cone bearing bushes 8 and the conical surface of the transmission shaft constantly keep the most proper degree of elastic fit, and interference between the transmission shaft and the fan shell 1 is avoided, the effect of reducing the abrasion is achieved.
When centrifugal fan worked, the gear pump extracts the lubricating oil in with the oil tank, carry the oil lubrication oil circuit through the pipeline in, lubricating oil gets into the junction of interior taper bearing bush 8 and transmission shaft through the oil through earlier, make and form one oil film between interior taper bearing bush 8 and the transmission shaft, change solid friction into liquid friction, lubricating oil continues to enter into fan housing 1 through another oil through hole, a plurality of oil pipes have been seted up to fan housing 1's inside, lubricating oil flows after absorbing the heat in fan housing 1, get back to the oil tank after through oil filter and radiator once more, when rotating lubricated to centrifugal rotor 2, also make centrifugal fan cool down.
When the pressure in the air supply system rises, the pressure sensor transmits a pressure signal to the control system, the control system controls the piston rods of all the air cylinders 11 to move, the piston rods push the air induction end adapter plate 101 and the inner adapter plate 102 to approach each other and to be attached to two end faces of the centrifugal rotor 2, the control system controls the servo motor 18 to rotate, the servo motor 18 drives the gear 19 to rotate, the gear 19 enables the rack ejector rod 20 to move, the rack ejector rod 20 pushes the pressing slide block 5 to extrude hydraulic oil in the cavity into a plurality of sliding grooves, the telescopic blades 3 completely extend out of the centrifugal rotor 2 to be contacted with the inner contour of the fan shell 1, an independent cavity is formed between every two telescopic blades 3, the control system opens the electromagnetic valve 13, when two adjacent telescopic blades 3 rotate through the air suction pipe 12, the volume of the cavity is increased, air is sucked from the air suction pipe 12, when two adjacent telescopic blades 3 rotate through the air outlet, the volume of the chamber is reduced, gas is extruded from the air outlet, so that the centrifugal fan adapts to a higher-pressure working environment, when a working system loses pressure suddenly, the pressure measuring slide block 30 is quickly sucked and moved in the pressure measuring pipe 29, the driven hook 31 pulls the lower pin column of the main wedge block 221 to expand the main wedge block 221 outwards, the upper pin column of the main wedge block 221 pushes the reversing rod 23 to rotate, the reversing rod 23 pushes the upper pin column of the auxiliary wedge block 222 through the push column 24 to move the auxiliary wedge block 222, the two wedge blocks simultaneously release the limitation on the sliding push rod 21, the slide block spring 602 releases elastic potential energy to push out the quick return slide block 601, the quick return slide block 601 sucks hydraulic oil in a plurality of sliding grooves into the cavity, all the telescopic blades 3 are retracted into the centrifugal rotor 2 to avoid the impact of the blades caused by sudden change of air pressure, when the telescopic blades 3 are retracted into the centrifugal rotor 2, dust accumulated on the surfaces of the telescopic blades 3 can be scraped, the automatic cleaning of flexible blade 3 is realized, promotes handle 261 and makes slip ejector pin 21 reset, and operating personnel upwards pulls handle 261, and leading truck 28 also can promote main voussoir 221 and outwards expand, carries out manual debugging work.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-efficient centrifugal fan of high temperature and high pressure resistance which characterized in that: including fan shell (1), centrifugal rotor (2) are installed to fan shell (1) internal rotation, set up the lubricated oil circuit of machine oil in fan shell (1), and fan shell (1) is provided with high pressure transfer mechanism, decompression protection mechanism outward, the lubricated and heat dissipation of machine oil lubricating oil circuit to whole device, high pressure transfer mechanism is used for changing centrifugal fan's mode, decompression protection mechanism protects and clears up centrifugal rotor (2).
2. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 1, characterized in that: the fan shell (1) is provided with an air inlet and an air outlet, the two end surfaces of the centrifugal rotor (2) are respectively provided with a transmission shaft, the two transmission shafts are respectively provided with a conical surface, the centrifugal rotor (2) is rotationally connected with the fan shell (1) through conical surfaces of two sections of transmission shafts, a cavity and a plurality of chutes are arranged inside the centrifugal rotor (2), telescopic blades (3) are slidably arranged in each chute, the two transmission shafts are of hollow structures, the hollow junction part is a slide block cavity, a pressure applying slide block (5) is arranged in the slide block cavity close to the air inducing port in a sliding way, a quick return slide block (601) is arranged in the other slide block cavity in a sliding way, a slide block spring (602) is connected between the quick return slide block (601) and the transmission shaft, the cavity, the sliding grooves and the two sliding block cavities are communicated with each other, and hydraulic oil is filled in the communicated areas.
3. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 2, characterized in that: the both ends of fan shell (1) all slide and are provided with interior taper axle bush (8), every install two expansion block (701) at least on the terminal surface that interior taper axle bush (8) are located fan shell (1), every fixed mounting has interior mount (702) on expansion block (701), every interior mount (702) and the inner wall fixed mounting of fan shell (1), the inner circle of interior taper axle bush (8) is the conical surface setting, and the conical surface of interior taper axle bush (8) is connected with the conical surface rotation of transmission shaft, and the junction of the both ends of interior taper axle bush (8) and transmission shaft respectively is provided with a sealed felt circle (9), and the logical oilhole has been seted up to the inside of interior taper axle bush (8), it communicates with machine oil lubricating oil circuit mutually to lead to the oilhole.
4. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 3, characterized in that: fan shell (1) is provided with oil tank, gear pump, oil cleaner and radiator outward, oil tank, gear pump, oil cleaner and radiator are connected in same hydraulic line, hydraulic line is connected with the machine oil lubricating oil way.
5. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 4, characterized in that: the high-pressure transferring mechanism comprises an air pressure sensor, at least one pair of air cylinders (11), an air suction pipe (12) and a front box body (172), wherein the air pressure sensor is arranged at an air outlet of a fan shell (1) and connected with a control system, the at least one pair of air cylinders (11) are symmetrically arranged on two end faces of the fan shell (1), a piston rod of each air cylinder (11) penetrates through the fan shell (1), an induced draft end adapter plate (101) is arranged in the fan shell (1) close to the induced draft port in a sliding mode, an inner adapter plate (102) is arranged in the fan shell (1) at a position far away from the induced draft port in a sliding mode, the induced draft end adapter plate (101) and the inner adapter plate (102) are connected with the piston rods, the air suction pipe (12) is arranged at the top of the fan shell (1), and the air suction pipe (12) is communicated with the inside of the fan shell (1), the upper end of aspiration channel (12) is provided with solenoid valve (13), solenoid valve (13) are to aspiration channel (12) business turn over shutoff, preceding box (172) inside is provided with servo motor (18), servo motor (18) are connected with control system, install gear (19) on the motor shaft of servo motor (18), and slidable mounting has rack ejector pin (20) in preceding box (172), rack ejector pin (20) mesh mutually with gear (19), and the one end of rack ejector pin (20) is stretched into the slider chamber, and rack ejector pin (20) rotate with the slider (5) of exerting pressure and are connected.
6. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 5, characterized in that: the decompression protection mechanism comprises a rear box body (171) and a sliding ejector rod (21), wherein the sliding ejector rod (21) is installed in the rear box body (171) in a sliding mode, the sliding ejector rod (21) extends into a sliding block cavity, the sliding ejector rod (21) is in contact with a quick return sliding block (601), triangular notches are symmetrically formed in the sliding ejector rod (21), a pair of triangular notches are respectively provided with a main wedge block (221) and an auxiliary wedge block (222), the main wedge block (221) and the auxiliary wedge block (222) are installed in the rear box body (171) in a rotating mode, the main wedge block (221) and the auxiliary wedge block (222) clamp the triangular notches, pin columns are arranged at the upper end and the lower end of the main wedge block (221), a pin column is arranged at the upper end of the auxiliary wedge block (222), a reversing rod (23) is installed at the top of the rear box body (171) in a rotating mode, one end of the reversing rod (23) is connected with the upper pin column of the main wedge block (221) in a sliding mode, the other end of the reversing rod (23) is provided with a push column (24), and the push column (24) is in contact with an upper pin column of the auxiliary wedge block (222).
7. The high-efficiency centrifugal fan resistant to high temperature and high pressure as claimed in claim 6, wherein: the pressure measuring pipe is characterized in that a pressure measuring pipe (29) is connected between the rear box body (171) and the air outlet, the pressure measuring pipe (29) extends into the rear box body (171), a pressure measuring slide block (30) is arranged in one section of the pressure measuring pipe (29) of the rear box body (171) in a sliding mode, a spring is arranged between the pressure measuring slide block (30) and the pressure measuring pipe (29), a driven hook (31) is arranged at one end, facing the interior of the rear box body (171), of the pressure measuring slide block (30), the driven hook (31) is in contact with a lower pin column of a main wedge block (221), a sleeve (27) is rotatably arranged at the lower section of the interior of the rear box body (171), a handle (261) is sleeved in the sleeve (27), a tension spring (262) is connected between the handle (261) and the sleeve (27), a rotary sliding seat (25) is rotatably arranged at one end of the sliding ejector rod (21), and the handle (261) is in sliding connection with the rotary sliding seat (25), a guide frame (28) is arranged on the handle (261), and the guide frame (28) is in contact with the lower pin of the main wedge block (221).
8. The high-efficiency centrifugal fan resistant to high temperature and high pressure according to claim 7, characterized in that: the centrifugal type centrifugal pump is characterized by comprising a power motor (14), a driving belt wheel (15) is installed on a motor shaft of the power motor (14), a belt wheel (4) is arranged on a transmission shaft of the centrifugal rotor (2), and a V-shaped belt (16) is connected between the driving belt wheel (15) and the belt wheel (4).
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| CN202210437236.6A CN114704492B (en) | 2022-04-25 | 2022-04-25 | High-efficient centrifugal fan of high temperature resistant high pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514894A (en) * | 2023-11-17 | 2024-02-06 | 江苏华强泵业有限公司 | Transmission device of axial flow pump |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1512698A (en) * | 1974-07-13 | 1978-06-01 | Gea Luftkuehler Happel Gmbh | Axial flow variable pitch ventilating fan |
| RU49930U1 (en) * | 2005-03-28 | 2005-12-10 | Государственное образовательное учреждение высшего профессионального образования "Курский государственный технический университет" | CENTRIFUGAL PUMP DRIVING WHEEL |
| CN101532502A (en) * | 2009-04-27 | 2009-09-16 | 江苏金通灵风机股份有限公司 | Post-treatment waste gas recycling high-temperature blower |
| KR101100397B1 (en) * | 2011-10-21 | 2011-12-30 | 티엠디이엔지(주) | Hydraulic blade adjustment for use in generator equipment of axial fan having improved structure for flow control part |
| CN107605775A (en) * | 2017-08-25 | 2018-01-19 | 张跃 | A kind of high-temperature centrifugal fan |
| CN107762972A (en) * | 2017-12-05 | 2018-03-06 | 武汉思亘远电控设备有限公司 | A kind of self-saturation type axle induced-draft fan movable vane piece adjustment mechanism and its method of work |
| CN207673571U (en) * | 2017-12-16 | 2018-07-31 | 佛山市粤宇风机设备有限公司 | A kind of multiple wing type centrifugal ventilation blower |
| CN109352583A (en) * | 2018-12-10 | 2019-02-19 | 江苏鑫诚电动车科技发展有限公司 | Brake part provision for disengagement with jack mounting bracket |
| CN109617019A (en) * | 2019-01-18 | 2019-04-12 | 日照南瑞电气科技有限公司 | A kind of flame-proof mine double loop fan protection device |
| CN110145547A (en) * | 2019-06-22 | 2019-08-20 | 烟台海德专用汽车有限公司 | A kind of bearing fan self-lubricating device and lubricating method |
| CN110671368A (en) * | 2019-11-19 | 2020-01-10 | 李楷烨 | Output shaft cooling and lubricating device of axial flow fan |
| CN211648517U (en) * | 2019-12-23 | 2020-10-09 | 周口市通用鼓风机有限公司 | Centrifugal fan with good heat dissipation |
| CN112594190A (en) * | 2020-11-20 | 2021-04-02 | 浙江永杰石化设备有限公司 | Multistage self-suction centrifugal peripheral pump |
| CN112798432A (en) * | 2020-12-30 | 2021-05-14 | 中航试金石检测科技(大厂)有限公司 | Thin-wall pipe full-pipe test tool clamp and high-temperature creep endurance test equipment |
| CN113324018A (en) * | 2021-04-09 | 2021-08-31 | 浙江拓特工程设备有限公司 | Automatic go up centrifugal fan case of lubricating oil |
| CN214304427U (en) * | 2020-12-24 | 2021-09-28 | 武汉军鹏伟业通风设备有限公司 | Energy-saving centrifugal fan |
| CN214304483U (en) * | 2021-01-15 | 2021-09-28 | 南京金城机械有限公司 | Far and near program control device of cooling fan applied to engine durability test |
| CN113883004A (en) * | 2021-11-03 | 2022-01-04 | 葛文星 | Variable wind power generation fan blade |
-
2022
- 2022-04-25 CN CN202210437236.6A patent/CN114704492B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1512698A (en) * | 1974-07-13 | 1978-06-01 | Gea Luftkuehler Happel Gmbh | Axial flow variable pitch ventilating fan |
| RU49930U1 (en) * | 2005-03-28 | 2005-12-10 | Государственное образовательное учреждение высшего профессионального образования "Курский государственный технический университет" | CENTRIFUGAL PUMP DRIVING WHEEL |
| CN101532502A (en) * | 2009-04-27 | 2009-09-16 | 江苏金通灵风机股份有限公司 | Post-treatment waste gas recycling high-temperature blower |
| KR101100397B1 (en) * | 2011-10-21 | 2011-12-30 | 티엠디이엔지(주) | Hydraulic blade adjustment for use in generator equipment of axial fan having improved structure for flow control part |
| CN107605775A (en) * | 2017-08-25 | 2018-01-19 | 张跃 | A kind of high-temperature centrifugal fan |
| CN107762972A (en) * | 2017-12-05 | 2018-03-06 | 武汉思亘远电控设备有限公司 | A kind of self-saturation type axle induced-draft fan movable vane piece adjustment mechanism and its method of work |
| CN207673571U (en) * | 2017-12-16 | 2018-07-31 | 佛山市粤宇风机设备有限公司 | A kind of multiple wing type centrifugal ventilation blower |
| CN109352583A (en) * | 2018-12-10 | 2019-02-19 | 江苏鑫诚电动车科技发展有限公司 | Brake part provision for disengagement with jack mounting bracket |
| CN109617019A (en) * | 2019-01-18 | 2019-04-12 | 日照南瑞电气科技有限公司 | A kind of flame-proof mine double loop fan protection device |
| CN110145547A (en) * | 2019-06-22 | 2019-08-20 | 烟台海德专用汽车有限公司 | A kind of bearing fan self-lubricating device and lubricating method |
| CN110671368A (en) * | 2019-11-19 | 2020-01-10 | 李楷烨 | Output shaft cooling and lubricating device of axial flow fan |
| CN211648517U (en) * | 2019-12-23 | 2020-10-09 | 周口市通用鼓风机有限公司 | Centrifugal fan with good heat dissipation |
| CN112594190A (en) * | 2020-11-20 | 2021-04-02 | 浙江永杰石化设备有限公司 | Multistage self-suction centrifugal peripheral pump |
| CN214304427U (en) * | 2020-12-24 | 2021-09-28 | 武汉军鹏伟业通风设备有限公司 | Energy-saving centrifugal fan |
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| CN214304483U (en) * | 2021-01-15 | 2021-09-28 | 南京金城机械有限公司 | Far and near program control device of cooling fan applied to engine durability test |
| CN113324018A (en) * | 2021-04-09 | 2021-08-31 | 浙江拓特工程设备有限公司 | Automatic go up centrifugal fan case of lubricating oil |
| CN113883004A (en) * | 2021-11-03 | 2022-01-04 | 葛文星 | Variable wind power generation fan blade |
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| CN117514894A (en) * | 2023-11-17 | 2024-02-06 | 江苏华强泵业有限公司 | Transmission device of axial flow pump |
| CN117514894B (en) * | 2023-11-17 | 2024-04-30 | 江苏华强泵业有限公司 | Transmission device of axial flow pump |
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