CN114719666A - Electric damper adjusting device and method - Google Patents
Electric damper adjusting device and method Download PDFInfo
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- CN114719666A CN114719666A CN202210306324.2A CN202210306324A CN114719666A CN 114719666 A CN114719666 A CN 114719666A CN 202210306324 A CN202210306324 A CN 202210306324A CN 114719666 A CN114719666 A CN 114719666A
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- heat preservation
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 238000005315 distribution function Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 4
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to the technical field of pipeline cleaning, in particular to an electric air damper device and a method, which comprises an air preheater, wherein the top of the air preheater is provided with a hot primary air port, a ventilation mechanism with an air distribution function is arranged in the air preheater, one side of the ventilation mechanism is provided with an electric air damper mechanism for adjusting an air damper of a hot air pipeline of an air preheater, and a filtering mechanism for blocking and filtering sundries is arranged in the hot air pipeline; the invention can control the valve clack to rotate through the electric air damper mechanism by arranging the electric air damper mechanism, drives the connecting line to pull one side of the baffle box when the valve clack rotates to generate a gap in the through hole, so that the valve clack can control the wind power in the hot air pipeline and does not influence the circulation of the air in the hot air pipeline, the air can flow through the gap in the through hole in the valve clack, and the first detection piece and the second detection piece can be arranged to measure the wind power before and after the electric air damper mechanism is adjusted, so that the electric air damper mechanism is adjusted more accurately.
Description
Technical Field
The invention relates to the technical field of pipeline cleaning, in particular to an electric air door adjusting device and method.
Background
Air preheaters are important equipment in power plant boilers. Different generating sets, the specification category of air preheater also has difference, and the air preheater is air preheater, is applied to the boiler afterbody flue, utilizes the heat of the interior flue gas of afterbody flue, heats the air that gets into in the boiler, improves air temperature, reduces the heat of discharging fume, reduces calorific loss.
The inside regulation of being not convenient for of traditional air preheater hot-blast main today, and the amount of wind and the wind pressure in the unable fine monitoring hot-blast main.
Disclosure of Invention
The invention aims to provide an electric air damper adjusting device and a method, wherein the electric air damper adjusting device comprises an air preheater, the top of the air preheater is provided with a hot primary air port, a ventilation mechanism with an air distribution function is arranged in the air preheater, one side of the ventilation mechanism is provided with an electric air damper adjusting mechanism for adjusting an air damper of a hot air pipeline of the air preheater, and a filtering mechanism for blocking and filtering sundries is arranged in the hot air pipeline; the electric air damper mechanism comprises a motor, a fixed shaft, a moving part, a valve clack, a baffle plate and a connecting wire, wherein the motor is fixedly connected to the side wall of the hot air pipeline, the fixed shaft is fixedly connected to the inside of the hot air pipeline, the moving part is rotatably connected to the side wall of the fixed shaft, the moving part is fixedly connected to the valve clack, a mounting hole is formed in the moving part, the moving part is fixedly connected to the output end of the motor through the mounting hole, and the baffle plate is installed to the inside of the valve clack through the connecting wire.
Optionally, the through-hole has been seted up to valve clack inside, the through-hole is provided with a plurality of, the mounting groove has been seted up to through-hole one side, mounting groove internally mounted has the spring, baffle fixed connection be in spring one end, the baffle is provided with a plurality of, a plurality of the baffle passes through the connecting wire is connected, the fixed axle lateral wall has been seted up and has been put the wire casing, the connecting wire is located put the wire casing, the baffle passes through connecting wire swing joint be in inside the valve clack.
Optionally, ventilation mechanism includes interface bellows, transition bellows, air-distributing box and air inlet case, the air inlet case is installed inside the air preheater, air-distributing box fixed connection be in the air inlet roof portion, air-distributing box is provided with four, transition bellows fixed connection be in air inlet case one side, interface bellows one end fixed connection be in transition bellows one side, interface bellows other end fixed connection be in hot-blast main one end.
Optionally, transition bellows lateral wall fixedly connected with manometer on the spot, manometer on the spot is used for detecting transition bellows's relative pressure.
Optionally, interface bellows, transition bellows, air-dividing case and air inlet incasement portion all are provided with the heat preservation felt, heat preservation felt one side fixedly connected with outer casing, the outer casing material is the aluminum alloy, the heat preservation felt material is nanometer aerogel.
Optionally, filtering mechanism includes mounting bracket, fly leaf, sealing washer, slider and gim peg, mounting bracket fixed connection be in the hot air duct lateral wall, slider fixed connection be in fly leaf one side, mounting bracket internally mounted has the slide, slider sliding connection is in inside the slide, the fly leaf passes through slider sliding connection be in inside the mounting bracket, gim peg swing joint be in inside the mounting bracket, the gim peg with the fly leaf phase-match, the inside vent of having seted up of fly leaf, the vent with the hot air duct phase-match, the inside fixedly connected with filter screen of vent, sealing washer fixed connection be in fly leaf one side, the sealing washer with the hot air duct phase-match.
Optionally, the inner wall of the mounting frame and the side wall of the hot air pipeline are fixedly connected with reinforcing ribs, the reinforcing ribs are provided with a plurality of, and a handle is arranged on one side of the movable plate.
Optionally, the inside of the hot air duct is fixedly connected with a first detection piece and a second detection piece, the first detection piece is located on one side of the electric air adjusting door mechanism, and the second detection piece is located on the other side of the electric air adjusting door mechanism.
Optionally, the inside fixedly connected with expansion joint of hot-blast main, the expansion joint material is 304 stainless steel, hot-blast main internally mounted has manual picture peg door, hot-blast main comprises body backplate and heat preservation cotton, heat preservation cotton one side is provided with hexagonal wire net, the inside heat preservation grapple that is provided with of hexagonal wire net, heat preservation grapple with be provided with the auto-lock clamp plate between the hexagonal wire net, hexagonal wire net passes through heat preservation grapple and auto-lock clamp plate fixed mounting be in heat preservation cotton one side.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can control the valve clack to rotate through the electric air damper mechanism by arranging the electric air damper mechanism, drives the connecting line to pull one side of the baffle box when the valve clack rotates to generate a gap in the through hole, so that the valve clack can control the wind power in the hot air pipeline and does not influence the circulation of the air in the hot air pipeline, the air can flow through the gap in the through hole in the valve clack, and the first detection piece and the second detection piece can be arranged to measure the wind power before and after the electric air damper mechanism is adjusted, so that the electric air damper mechanism is adjusted more accurately.
2. According to the invention, through the arrangement of the filtering mechanism, impurities in air can be blocked by arranging the filter screen, so that the impurities can be prevented from flowing into the air preheater and influencing components in the air preheater, through the arrangement of the fixing bolt, when the fixing bolt is taken down, the movable plate can be taken out through the handle, the filter screen in the movable plate is cleaned, so that the filter screen can be used for multiple times, and through the arrangement of the sealing ring, the sealing effect on the hot air pipeline can be achieved.
3. The invention can eliminate the condensation phenomenon of the ammonium bisulfate by improving the temperature of the flow field in the cleaning interval through the air preheater, so that the ammonium bisulfate attached to the element is changed into a gaseous state from a liquid state, the gaseous ammonium bisulfate has no influence on the air preheater and can directly flow away, the liquid ammonium bisulfate is not used, the fly ash can not be bonded, and meanwhile, the stubborn accumulated ash attached to the heat transfer element is swept by the hot air with high flow velocity, so that the blockage phenomenon disappears, the aim of automatically cleaning the hot air is fulfilled, and the safe, economic and reliable long-term operation of the power station boiler is realized. The physical property of ammonium bisulfate thermal decomposition is utilized, which belongs to the problem of air preheater blockage caused by radically treating ammonium bisulfate.
4. According to the invention, the ventilation mechanism is arranged, the interface air box is arranged, so that the hot air pipeline can be connected with the transition air box, further, air can flow into the air inlet box through the transition air box, the air distribution box is arranged at the top of the air inlet box to play a shunting role, the pressure of the transition air box can be accurately detected by arranging the local pressure gauge, the heat preservation felts are arranged in the interface air box, the transition air box, the air distribution box and the air inlet box, and the heat preservation cotton is arranged in the hot air pipeline, so that the overall heat preservation effect of the device is better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a partial sectional view of a hot air duct according to the present invention;
FIG. 4 is a cross-sectional view of the mounting bracket construction of the present invention;
FIG. 5 is a schematic view of the valve flap of the present invention;
FIG. 6 is a partial cross-sectional view of the valve flap of the present invention;
FIG. 7 is a schematic view of the vent mechanism of the present invention;
FIG. 8 is a top view of the vent mechanism of the present invention;
FIG. 9 is a sectional view of the structure of the air inlet box of the present invention;
FIG. 10 is a sectional view of a hot air duct structure according to the present invention.
The reference numbers illustrate:
1. an air preheater; 2. a hot air duct; 3. a hot primary air port; 4. a ventilation mechanism; 5. a mounting frame; 6. a manual paddle door; 7. an expansion joint; 8. an electric damper mechanism; 9. reinforcing ribs; 10. a fixing bolt; 11. a seal ring; 12. a movable plate; 13. filtering with a screen; 14. a slider; 15. a first detecting member; 16. a second detecting member; 17. a motor; 18. a fixed shaft; 19. a movable member; 20. a valve flap; 21. mounting holes; 22. a through hole; 23. a baffle plate; 24. arranging a wire groove; 25. a connecting wire; 26. an interface bellows; 27. a transition air box; 28. a wind distribution box; 29. an air inlet box; 30. an on-site pressure gauge; 31. an outer shroud; 32. a heat preservation felt; 33. a body guard plate; 34. heat preservation cotton; 35. a hexagonal steel wire mesh; 36. heat preservation nails are grabbed; 37. and (4) self-locking pressing plates.
The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.
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 10, the present invention provides an electric damper device and method, including an air preheater 1, a hot primary air port 3 is installed on the top of the air preheater 1, a ventilation mechanism 4 with air distribution function is installed inside the air preheater 1, an electric damper mechanism 8 for adjusting the air door of a hot air duct 2 of the air preheater is installed on one side of the ventilation mechanism 4, and a filtering mechanism for blocking and filtering impurities is installed inside the hot air duct 2; the electric air damper mechanism 8 comprises a motor 17, a fixed shaft 18, a movable member 19, a valve clack 20, a baffle plate 23 and a connecting wire 25, wherein the motor 17 is fixedly connected to the side wall of the hot air pipeline 2, the fixed shaft 18 is fixedly connected inside the hot air pipeline 2, the movable member 19 and the valve clack 20 are both rotatably connected to the side wall of the fixed shaft 18, the movable member 19 is fixedly connected with the valve clack 20, a mounting hole 21 is formed inside the movable member 19, the movable member 19 is fixedly connected to the output end of the motor 17 through the mounting hole 21, and the baffle plate 23 is mounted inside the valve clack 20 through the connecting wire 25; the hot primary air port 3 can guide the hot air blown out from the air preheater 1, and the blowing direction of the hot air is controlled.
Referring to fig. 5 and 6, a through hole 22 is formed in the valve flap 20, the through hole 22 is provided with a plurality of through holes, a mounting groove is formed in one side of the through hole 22, a spring is mounted in the mounting groove, the baffle plate 23 is fixedly connected to one end of the spring, the baffle plate 23 is provided with a plurality of baffle plates 23, the baffle plates 23 are connected through a connecting line 25, a wire placing groove 24 is formed in the side wall of the fixing shaft 18, the connecting line 25 is located in the wire placing groove 24, and the baffle plates 23 are movably connected to the inside of the valve flap 20 through the connecting line 25; through setting up baffle 23 in through-hole 22 inside can prevent that the air from having through-hole 22 department to pass through, through setting up connecting wire 25 and spring, drive connecting wire 25 when valve clack 20 rotates and with 23 case one side pulling of baffle, make the inside gap that produces of through-hole 22, make valve clack 20 both can control the inside wind-force of hot-blast main 2 and can not influence the circulation of the inside air of hot-blast main 2 again, make the air can pass through 22 department gaps in the valve clack 20.
Referring to fig. 7, 8 and 9, the ventilation mechanism 4 includes an interface air box 26, a transition air box 27, four air distribution boxes 28 and an air inlet box 29, the air inlet box 29 is installed inside the air preheater 1, the air distribution boxes 28 are fixedly connected to the top of the air inlet box 29, the four air distribution boxes 28 are provided, the transition air box 27 is fixedly connected to one side of the air inlet box 29, one end of the interface air box 26 is fixedly connected to one side of the transition air box 27, the other end of the interface air box 26 is fixedly connected to one end of the hot air pipeline 2, the side wall of the transition air box 27 is fixedly connected with a local pressure gauge 30, the local pressure gauge 30 is used for detecting the relative pressure of the transition air box 27, heat preservation felts 32 are respectively provided inside the interface air box 26, the transition air box 27, the air distribution boxes 28 and the air inlet box 29, one side of the heat preservation felts 32 is fixedly connected with an outer guard plate 31, the outer guard plate 31 is made of aluminum alloy, and the heat preservation felts 32 are made of nano aerogel; make hot-blast main 2 can be connected with transition bellows 27 through setting up interface bellows 26, and then make the air can flow into the air inlet case 29 through transition bellows 27 in, can play the reposition of redundant personnel effect through set up the air-out case 28 at the air inlet case 29 top, can be accurate detect transition bellows 27's pressure through setting up local pressure gauge 30.
Referring to fig. 3 and 4, the filtering mechanism includes an installation frame 5, a movable plate 12, a sealing ring 11, a slider 14 and a fixing bolt 10, the installation frame 5 is fixedly connected to a side wall of the hot air duct 2, the slider 14 is fixedly connected to one side of the movable plate 12, a slide is installed inside the installation frame 5, the slider 14 is slidably connected inside the slide, the movable plate 12 is slidably connected inside the installation frame 5 through the slider 14, the fixing bolt 10 is movably connected inside the installation frame 5, the fixing bolt 10 is matched with the movable plate 12, a vent is formed inside the movable plate 12, the vent is matched with the hot air duct 2, a filter screen 13 is fixedly connected inside the vent, the sealing ring 11 is fixedly connected to one side of the movable plate 12, the sealing ring 11 is matched with the hot air duct 2, a plurality of reinforcing ribs 9 are fixedly connected between an inner wall of the installation frame 5 and a side wall of the hot air duct 2, one of the reinforcing ribs 9 is provided, one side of the movable plate 12 is provided with a handle, a first detection piece 15 and a second detection piece 16 are fixedly connected inside the hot air pipeline 2, the first detection piece 15 is located on one side of an electric adjusting air door mechanism 8, the second detection piece 16 is located on the other side of the electric adjusting air door mechanism 8, an expansion joint 7 is fixedly connected inside the hot air pipeline 2, the expansion joint 7 is made of 304 stainless steel, a manual inserting plate door 6 is installed inside the hot air pipeline 2, the hot air pipeline 2 consists of a body protection plate 33 and heat insulation cotton 34, a hexagonal steel wire mesh 35 is arranged on one side of the heat insulation cotton 34, a heat insulation grabbing nail 36 is arranged inside the hexagonal steel wire mesh 35, a self-locking pressing plate 37 is arranged between the heat insulation grabbing nail 36 and the hexagonal steel wire mesh 35, and the hexagonal steel wire mesh 35 is fixedly installed on one side of the heat insulation cotton 34 through the heat insulation grabbing nail 36 and the self-locking pressing plate 37; can block the impurity in the air through setting up filter screen 13, prevent that it from flowing into inside air preheater 1, cause the influence to the inside part of air preheater 1, can take out fly leaf 12 through the handle when setting up gim peg 10 when taking off gim peg 10, filter screen 13 clears up in fly leaf 12, make filter screen 13 can repetitious usage, can play sealed effect to hot-blast main 2 through setting up sealing washer 11, it can measure the wind-force around electric damper mechanism 8 adjusts to set up first detection piece 15 and second detection piece 16, make electric damper mechanism 8's regulation more accurate.
The working process and principle of the invention are as follows: the device extracts hot air from a hot primary air port 3 at the outlet of an air preheater 1, introduces a hot air pipeline 2, enables ammonium bisulfate to be rapidly converted from liquid state to gaseous state in the area, simultaneously sweeps the heating surface of a rotor by utilizing the high flow rate of the hot air, and enables fly ash to be taken away along with the hot air. Hot air is extracted from a hot primary air port 3, enters the air preheater 1 from a ventilation mechanism 4 of a hot air pipeline 2, flows through a heating surface at a high speed to gasify ammonium bisulfate, is mixed with hot secondary air to be directly exhausted, a baffle plate 23 is arranged in a through hole 22 to prevent air from passing through the through hole 22, a connecting wire 25 and a spring are arranged, when a valve clack 20 rotates, the connecting wire 25 is driven to pull one side of a box of the baffle plate 23 to generate a gap in the through hole 22, so that the valve clack 20 can control the wind power in the hot air pipeline 2 and can not influence the circulation of the air in the hot air pipeline 2, the air can flow through the gap in the through hole 22 in the valve clack 20, impurities in the air can be blocked by arranging a filter screen 13 to prevent the impurities from flowing into the air preheater 1 to influence parts in the air preheater 1, and the movable plate 12 can be taken out by a handle when the fixing bolt 10 is taken out, filter screen 13 clears up in fly leaf 12, makes filter screen 13 can repetitious usage, can play sealed effect to hot-blast main 2 through setting up sealing washer 11, sets up first detection piece 15 and second detection piece 16 and can measure the wind-force around electric damper mechanism 8 adjusts, makes electric damper mechanism 8's regulation more accurate.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. Electric damper adjusting device and method, including air preheater (1), hot primary air mouth (3) is installed at air preheater (1) top, its characterized in that:
a ventilation mechanism (4) with an air distribution function is arranged in the air preheater (1), an electric air door adjusting mechanism (8) used for adjusting an air door of a hot air pipeline (2) of the air preheater is arranged on one side of the ventilation mechanism (4), and a filtering mechanism used for blocking filtering sundries is arranged in the hot air pipeline (2);
electric damper mechanism (8) include motor (17), fixed axle (18), moving part (19), valve clack (20), baffle (23) and connecting wire (25), motor (17) fixed connection be in hot-blast main (2) lateral wall, fixed axle (18) fixed connection be in inside hot-blast main (2), moving part (19) with valve clack (20) all rotate to be connected fixed axle (18) lateral wall, moving part (19) with valve clack (20) fixed connection, mounting hole (21) have been seted up to moving part (19) inside, moving part (19) pass through mounting hole (21) fixed connection be in motor (17) output, baffle (23) pass through connecting wire (25) are installed inside valve clack (20).
2. The electric damper apparatus and method of claim 1, wherein: through-hole (22) have been seted up to valve clack (20) inside, through-hole (22) are provided with a plurality of, the mounting groove has been seted up to through-hole (22) one side, mounting groove internally mounted has the spring, baffle (23) fixed connection be in spring one end, baffle (23) are provided with a plurality of, a plurality of baffle (23) pass through connecting wire (25) are connected, fixed axle (18) lateral wall has been seted up and has been put wire casing (24), connecting wire (25) are located put in wire casing (24), baffle (23) pass through connecting wire (25) swing joint be in inside valve clack (20).
3. The electric damper apparatus and method of claim 1, wherein: ventilation mechanism (4) are including interface bellows (26), transition bellows (27), air-distributing box (28) and air inlet case (29), air inlet case (29) are installed inside air preheater (1), air-distributing box (28) fixed connection be in air inlet case (29) top, air-distributing box (28) are provided with four, transition bellows (27) fixed connection be in air inlet case (29) one side, interface bellows (26) one end fixed connection be in transition bellows (27) one side, interface bellows (26) other end fixed connection be in hot-blast main (2) one end.
4. The electric damper apparatus and method of claim 3, wherein: transition bellows (27) lateral wall fixedly connected with is manometer (30) on the spot, manometer (30) on the spot are used for detecting the relative pressure of transition bellows (27).
5. The electric damper assembly and method of claim 3, wherein: interface bellows (26), transition bellows (27), air distribution box (28) and air inlet case (29) are inside all to be provided with heat preservation felt (32), heat preservation felt (32) one side fixedly connected with outer casing (31), outer casing (31) material is the aluminum alloy, heat preservation felt (32) material is nanometer aerogel.
6. The electric damper apparatus and method of claim 1, wherein: the filtering mechanism comprises a mounting frame (5), a movable plate (12), a sealing ring (11), a slider (14) and a fixed bolt (10), the mounting frame (5) is fixedly connected to the side wall of the hot air duct (2), the slider (14) is fixedly connected to one side of the movable plate (12), a slide is mounted inside the mounting frame (5), the slider (14) is slidably connected to the inside of the slide, the movable plate (12) is slidably connected to the inside of the mounting frame (5) through the slider (14), the fixed bolt (10) is movably connected to the inside of the mounting frame (5), the fixed bolt (10) is matched with the movable plate (12), a vent is formed inside the movable plate (12), the vent is matched with the hot air duct (2), and a filter screen (13) is fixedly connected to the inside of the vent, the sealing ring (11) is fixedly connected to one side of the movable plate (12), and the sealing ring (11) is matched with the hot air pipeline (2).
7. The electric damper apparatus and method as in claim 6, wherein: the hot-blast pipeline is characterized in that reinforcing ribs (9) are fixedly connected between the inner wall of the mounting frame (5) and the side wall of the hot-blast pipeline (2), a plurality of reinforcing ribs (9) are arranged, and a handle is arranged on one side of the movable plate (12).
8. The electric damper apparatus and method of claim 1, wherein: the hot air pipeline (2) is internally and fixedly connected with a first detection piece (15) and a second detection piece (16), the first detection piece (15) is located on one side of the electric air adjusting door mechanism (8), and the second detection piece (16) is located on the other side of the electric air adjusting door mechanism (8).
9. The electric damper apparatus and method of claim 1, wherein: inside fixedly connected with expansion joint (7) of hot-blast main (2), expansion joint (7) material is 304 stainless steel, hot-blast main (2) internally mounted has manual picture peg door (6), hot-blast main (2) comprises body backplate (33) and heat preservation cotton (34), heat preservation cotton (34) one side is provided with hexagonal wire net (35), hexagonal wire net (35) inside is provided with heat preservation grapple (36), heat preservation grapple (36) with be provided with auto-lock clamp plate (37) between hexagonal wire net (35), hexagonal wire net (35) are passed through heat preservation grapple (36) and auto-lock clamp plate (37) fixed mounting be in heat preservation cotton (34) one side.
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| CN202210306324.2A CN114719666B (en) | 2022-03-25 | 2022-03-25 | Electric throttle device and method |
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| CN202210306324.2A CN114719666B (en) | 2022-03-25 | 2022-03-25 | Electric throttle device and method |
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| CN114719666B CN114719666B (en) | 2024-01-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719902A (en) * | 2022-03-25 | 2022-07-08 | 河北邯峰发电有限责任公司 | Intelligent air quantity and air pressure measuring test method |
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| CN114719666B (en) | 2024-01-23 |
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