CN113587130A - Hot water recirculation system for flue gas waste heat recovery - Google Patents
Hot water recirculation system for flue gas waste heat recovery Download PDFInfo
- Publication number
- CN113587130A CN113587130A CN202110846895.0A CN202110846895A CN113587130A CN 113587130 A CN113587130 A CN 113587130A CN 202110846895 A CN202110846895 A CN 202110846895A CN 113587130 A CN113587130 A CN 113587130A
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- Prior art keywords
- flue gas
- waste heat
- heat recovery
- gas waste
- wall
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003546 flue gas Substances 0.000 title claims abstract description 48
- 239000002918 waste heat Substances 0.000 title claims abstract description 44
- 238000011084 recovery Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 10
- 239000012535 impurity Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a hot water recirculation system for flue gas waste heat recovery relates to the energy-conserving field of thermal power, and it includes the boiler body and installs the flue gas waste heat recovery casing on the boiler body, the flue gas waste heat recovery casing passes through intake pipe and boiler body intercommunication, the top fixedly connected with outlet duct of flue gas waste heat recovery casing, the mouth of pipe department of outlet duct installs the cassette, install the clearance part that is used for clearing up the cassette on the outlet duct, the clearance part includes fixed plate, rotation of fixed connection on the outlet duct inner wall and installs the axis of rotation on the fixed plate, install at the epaxial scraper blade of rotation, the lateral wall of scraper blade and the lateral wall contact of cassette, install on the outlet duct and be used for driving axis of rotation pivoted driver part. This application has improved the easy problem of blockking up of filtration pore on the cassette.
Description
Technical Field
The application relates to the field of thermal power energy conservation, in particular to a hot water recirculation system for recovering flue gas waste heat.
Background
At present, coal price is a main influence factor influencing economic benefits of coal-fired power plants. The flue gas waste heat recovery system can recover the waste heat of the boiler exhaust gas so as to save the coal consumption of power generation, and is a standard device in newly built coal-fired generator sets in China at present, and old generator sets are gradually subjected to energy-saving modification and are additionally provided with the system.
The chinese utility model patent that the related art can refer to and announce No. CN212512629U, it discloses a flue gas waste heat recovery device, including the water storage bucket, flue gas waste heat recovery casing, operation panel, the inlet tube has been connected in the left side of water storage bucket, the outlet pipe has been connected on the right side of water storage bucket, the external surface of water storage bucket is equipped with the heat pipe, the upper portion left side of flue gas waste heat recovery casing is equipped with the flue gas intake pipe, the upper portion right side of flue gas waste heat recovery casing is equipped with the flue gas outlet duct, the port of giving vent to anger of flue gas outlet duct installs the cassette through construction bolt, the lower part surface of flue gas waste heat recovery casing is equipped with the operation panel.
With respect to the related art in the above, the inventors consider that: after the filter disc filters the smoke for a long time, impurities in the smoke can be accumulated on the filter disc, and filter holes on the filter disc are easily blocked.
Disclosure of Invention
In order to improve the easy problem of blockking up of filtration pore on the filter, this application provides a hot water recirculation system for flue gas waste heat recovery.
The application provides a hot water recirculation system for flue gas waste heat recovery adopts following technical scheme:
the utility model provides a hot water recirculation system for flue gas waste heat recovery, includes the boiler body and installs the flue gas waste heat recovery casing on the boiler body, the flue gas waste heat recovery casing passes through intake pipe and boiler body intercommunication, the top fixedly connected with outlet duct of flue gas waste heat recovery casing, the mouth of pipe department of outlet duct installs the cassette, install the clearance part that is used for clearing up the cassette on the outlet duct, the clearance part includes fixed plate, rotation of fixed connection on the outlet duct inner wall and installs the axis of rotation on the fixed plate, install the scraper blade in the axis of rotation, the lateral wall of scraper blade contacts with the lateral wall of cassette, install on the outlet duct and be used for driving axis of rotation pivoted driver part.
Through adopting above-mentioned technical scheme, when needs clear up the cassette, only need start drive unit, drive unit drives the axis of rotation and rotates, and the axis of rotation drives the scraper blade and rotates for the scraper blade can clear up the cassette, thereby has improved the easy problem of blockking up of filtration pore on the cassette.
Preferably, a placing groove for placing the filter disc is formed in the end face of the air outlet pipe, and a positioning component for locking the filter disc is installed on the air outlet pipe.
Through adopting above-mentioned technical scheme, after the long-time use of cassette, only need carry out the unblock with locating part, can take out the cassette from the outlet duct, after the cassette takes place wearing and tearing, be convenient for change the cassette.
Preferably, the positioning part comprises a positioning rod arranged on the side wall of the air outlet pipe in a penetrating manner, and a positioning groove for inserting the positioning rod is formed in the side wall of the filter sheet.
Through adopting above-mentioned technical scheme, when needs lock the cassette, only need to remove the locating lever orientation near one side of cassette, when the locating lever inserted the constant head tank, can accomplish the locking of locating lever to the cassette, the staff of being convenient for operates.
Preferably, the end wall of one end, away from the filter disc, of the positioning rod is fixedly connected with a pressing plate, the positioning rod is sleeved with a positioning spring, one end of the positioning spring is fixedly connected with the pressing plate, the other end of the positioning spring is fixedly connected with the air outlet pipe, the positioning spring is in a compressed shape, and the air outlet pipe is provided with a limiting component for locking the positioning rod.
Through adopting above-mentioned technical scheme, spacing block can be further lock the locating lever to the stability of locating lever to the cassette locking has been improved.
Preferably, the inside integrated into one piece of outlet duct has places the chamber, the locating lever is worn to establish and is placed in the chamber, spacing part includes fixed block, the gag lever post of wearing to establish on placing the intracavity wall of fixed connection, slides, and establish spacing spring and the electro-magnet of fixed connection on placing the intracavity wall on the gag lever post, fixed connection, the iron sheet of fixed connection bottom the gag lever post, cover on the gag lever post, set up on the locating lever and supply gag lever post male spacing groove, the iron sheet uses with the electro-magnet cooperation, install the control unit who is used for opening the electro-magnet on the scraper blade.
Through adopting above-mentioned technical scheme, when needs carry out the unblock to the locating lever, at first start control unit, control unit switches on the electro-magnet, make the electro-magnet can carry out the actuation to the iron sheet, the iron sheet drives the gag lever post downstream, spacing spring is the compression form this moment, when the gag lever post is extracted from the spacing groove, positioning spring drives the clamp plate and moves towards one side of keeping away from the cassette, make the locating lever extract from the constant head tank, thereby the locking of locating lever to the cassette has been relieved, the dismantlement to the cassette has been accomplished, the staff of being convenient for operates.
Preferably, set up on the inner wall of outlet duct and place the mounting groove that the chamber link up, control unit establishes slider on the screw rod including rotating screw rod, the screw thread cover of installing on placing the intracavity wall, establish on the screw rod and with screw rod fixed connection's first gear, set up the first contact on the slider, set up on placing the inner wall in chamber and with first contact complex second contact, fixed connection second gear on the scraper blade, first contact, second contact pass through the wire electricity with the electro-magnet and are connected, first gear passes through the mounting groove and extends to the inboard of outlet duct, first gear can mesh with the second gear.
By adopting the technical scheme, in the rotation process of the scraper, the scraper drives the second gear to rotate, when the second gear rotates to the position of the first gear, the second gear drives the first gear to rotate, the first gear drives the screw to rotate, the screw drives the sliding block to vertically move, the sliding block drives the first contact to vertically move, and when the first contact and the second contact are in contact with each other, the electromagnet is electrified, so that the filter plate is disassembled; through set up the second gear on the scraper blade, after the scraper blade used a period, can regularly change the cassette, increased the filter effect of cassette to the flue gas.
Preferably, the rotating shaft is provided with an external thread, the end wall of the scraper is fixedly connected with a sleeve, and the sleeve is sleeved on the rotating shaft in a threaded manner.
Through adopting above-mentioned technical scheme, when needs are dismantled the scraper blade, only need rotate the scraper blade, the scraper blade drives the sleeve and rotates, can take off the scraper blade from the axis of rotation to accomplished the dismantlement to the scraper blade, be convenient for change the scraper blade.
Preferably, the side wall of the scraper far away from the filter sheet is fixedly connected with a collecting plate, and the side wall of the collecting plate facing to the scraper is provided with a collecting groove.
Through adopting above-mentioned technical scheme, at scraper blade pivoted in-process, the impurity of striking off falls into the collecting vat to can collect impurity, reduce the emergence that impurity falls into the condition in the flue gas waste heat recovery casing.
In summary, the present application includes at least one of the following beneficial technical effects:
according to the filter piece cleaning device, the driving part, the rotating shaft and the scraper are arranged, when the filter piece needs to be cleaned, only the driving part needs to be started, the driving part drives the rotating shaft to rotate, and the rotating shaft drives the scraper to rotate, so that the scraper can clean the filter piece, and the problem that filter holes in the filter piece are easy to block is solved;
according to the filter element, the positioning component, the limiting component and the control component are arranged, in the rotating process of the scraper, the scraper can drive the control component to operate, the control component can drive the limiting component to operate, and the limiting component can drive the positioning component to operate, so that the filter element can be disassembled;
this application is through setting up the sleeve, when needs are dismantled the scraper blade, only need rotate the scraper blade, and the scraper blade drives the sleeve and rotates, can take off the scraper blade from the axis of rotation to accomplished the dismantlement to the scraper blade, be convenient for change the scraper blade.
Drawings
Fig. 1 is a schematic structural diagram of an overall hot water recirculation system for flue gas waste heat recovery according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a cleaning member and a driving member according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a collecting plate according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a positioning member, a limiting member, and a control member according to an embodiment of the present application.
Description of reference numerals: 1. a boiler body; 2. a flue gas waste heat recovery shell; 21. an air inlet pipe; 22. an air outlet pipe; 221. a placement groove; 222. a placement chamber; 223. mounting grooves; 224. placing a spring; 23. a filter disc; 231. positioning a groove; 24. a water inlet pipe; 25. a water outlet pipe; 3. cleaning the component; 31. a fixing plate; 32. a rotating shaft; 321. a first bevel gear; 33. a squeegee; 331. a sleeve; 34. a collection plate; 341. collecting tank; 4. a drive member; 41. a motor; 42. a transmission rod; 421. a second bevel gear; 5. a positioning member; 51. positioning a rod; 511. a limiting groove; 52. pressing a plate; 53. a positioning spring; 6. a limiting component; 61. a fixed block; 62. a limiting rod; 63. iron sheets; 64. a limiting spring; 65. an electromagnet; 7. a control component; 71. a screw; 72. a slider; 73. a first gear; 74. a first contact; 75. a second contact; 76. a second gear.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a hot water recirculation system for flue gas waste heat recovery. Referring to fig. 1 and 2, the hot water recirculation system for flue gas waste heat recovery includes a boiler body 1, a flue gas waste heat recovery housing 2; the boiler body 1 is communicated with the flue gas waste heat recovery shell 2 through an air inlet pipe 21, and an air outlet pipe 22 is fixedly connected to the top of the flue gas waste heat recovery shell 2; a water inlet pipe 24 is fixedly connected to the end wall of one end, facing the boiler body 1, of the flue gas waste heat recovery shell 2, the water inlet pipe 24 is communicated with the water tank, and a water outlet pipe 25 is fixedly connected to the end wall of one end, far away from the boiler body 1, of the flue gas waste heat recovery shell 2; the mouth of pipe department level of outlet duct 22 is provided with cassette 23, and cassette 23 can filter the impurity in the flue gas, installs clearance part 3 on the outlet duct 22, and clearance part 3 can clear up cassette 23 to the easy problem of blockking up of filtration pore on the cassette 23 has been improved.
Referring to fig. 2 and 3, the cleaning member 3 includes a fixed plate 31, a rotating shaft 32, a scraper 33, and a collecting plate 34; the fixing plate 31 is fixedly connected to the inner wall of the air outlet pipe 22 and is horizontally arranged; the rotating shaft 32 is rotatably mounted on the upper end face of the fixing plate 31 and is vertically arranged, an external thread is formed on the rotating shaft 32, a first bevel gear 321 fixedly connected with the rotating shaft 32 is sleeved on the rotating shaft 32, a driving part 4 is mounted on the outer wall of the air outlet pipe 22, and the driving part 4 can drive the rotating shaft 32 to rotate; the scraper 33 is horizontally arranged above the fixed plate 31, the scraper 33 is parallel to the fixed plate 31, the end wall of one end of the scraper 33 is fixedly connected with the sleeve 331, the end wall of the other end of the scraper 33 is contacted with the inner wall of the air outlet pipe 22, the sleeve 331 is sleeved on the rotating shaft 32 in a threaded manner, so that the scraper 33 is convenient to replace, the upper end surface of the scraper 33 is contacted with the lower end surface of the filter sheet 23, the rotating shaft 32 can drive the sleeve 331 to rotate, and the sleeve 331 drives the scraper 33 to rotate, so that the scraper 33 can clean the filter sheet 23; collecting plate 34 fixed connection just sets up for the level at the lower terminal surface of scraper blade 33, and collecting tank 341 has been seted up to collecting plate 34 towards the same with scraper blade 33's length to the length of collecting plate 34 on the lateral wall of scraper blade 33 one side, and collecting tank 341 collects impurity, has reduced the emergence that impurity falls into the condition among the flue gas waste heat recovery casing 2.
Referring to fig. 2, the driving part 4 includes a motor 41 and a driving lever 42; the motor 41 is fixedly connected to the outer wall of the air outlet pipe 22, the output shaft of the motor 41 is horizontally arranged, and the extending direction of the output shaft of the motor 41 is the same as that of the fixing plate 31; the transmission rod 42 is fixedly connected to an output shaft of the motor 41, the transmission rod 42 is parallel to the output shaft of the motor 41, the motor 41 can drive the transmission rod 42 to rotate, the transmission rod 42 is rotatably arranged in the air outlet pipe 22 in a penetrating manner, a second bevel gear 421 fixedly connected with the transmission rod 42 is sleeved on the transmission rod 42, the second bevel gear 421 is positioned in the air outlet pipe 22, and the second bevel gear 421 is meshed with the first bevel gear 321; the transmission rod 42 drives the second bevel gear 421 to rotate, the second bevel gear 421 drives the first bevel gear 321 to rotate, and the first bevel gear 321 drives the rotation shaft 32 to rotate, so that the scraper 33 can clean the filter 23.
Referring to fig. 2 and 4, the control part 7 is mounted on the scraper 33, the placing cavity 222 is integrally formed inside the air outlet pipe 22, and the inner wall of the air outlet pipe 22 is provided with a mounting groove 223 communicated with the placing cavity 222; the control part 7 comprises a second gear 76, a screw 71, a slider 72, a first gear 73, a first contact 74 and a second contact 75; the second gear 76 is fixedly connected to the lower end face of the scraper 33 and is arranged horizontally; the screw rod 71 is rotatably arranged on the inner bottom surface of the placing cavity 222 and is vertically arranged; the sliding block 72 is sleeved on the screw rod 71 in a threaded manner, and the side wall of the sliding block 72 is in contact with the inner wall of the placing cavity 222, so that the sliding block 72 is reduced from rotating along with the screw rod 71; the first gear 73 is sleeved on the screw 71 and fixedly connected with the screw 71, the first gear 73 extends to the inner side of the air outlet pipe 22 through the mounting groove 223, the first gear 73 can be meshed with the second gear 76, the scraper 33 drives the second gear 76 to rotate, when the second gear 76 rotates to the position of the first gear 73, the second gear 76 drives the first gear 73 to rotate, the first gear 73 drives the screw 71 to rotate, and the screw 71 drives the sliding block 72 to vertically move; the first contact 74 is arranged on the sliding block 72, and the sliding block 72 can drive the first contact 74 to vertically move; the second contact 75 is disposed on an inner wall of the placement chamber 222, and the second contact 75 is mated with the first contact 74.
Referring to fig. 2 and 4, the air outlet pipe 22 is provided with a limiting part 6, and the limiting part 6 comprises a fixing block 61, a limiting spring 64, an iron sheet 63, a limiting rod 62 and an electromagnet 65; the fixing block 61 is fixedly connected to the inner wall of the placing cavity 222; the limiting spring 64 is fixedly connected to the lower end face of the fixed block 61 and is vertically arranged, and the limiting spring 64 is in a stretching shape; the iron sheet 63 is fixedly connected to the bottom end of the limiting spring 64, and the limiting spring 64 can pull the iron sheet 63 to move upwards; the limiting rod 62 is slidably arranged on the upper end face of the fixing block 61 in a vertical mode, the end wall of the bottom end of the limiting rod 62 is fixedly connected with the upper end face of the iron sheet 63, and the limiting spring 64 can drive the limiting rod 62 to move vertically; the electromagnet 65 is fixedly connected to the inner wall of the placing cavity 222, the electromagnet 65 is located below the iron sheet 63, the electromagnet 65 is matched with the iron sheet 63, and the electromagnet 65 is electrically connected with the first contact 74 and the second contact 75 through conducting wires. When the first contact 74 contacts with the second contact 75, the electromagnet 65 can be energized, and the electromagnet 65 can adsorb the iron sheet 63, so that the iron sheet 63 moves downward, the iron sheet 63 drives the limiting rod 62 to move downward, and meanwhile, the iron sheet 63 stretches the limiting spring 64.
Referring to fig. 2 and 4, a placing groove 221 is formed in the upper end surface of the outlet pipe 22, the placing groove 221 is communicated with the inside of the outlet pipe 22, the filter 23 is placed in the placing groove 221, the filter 23 is wedged with the placing groove 221, and a positioning groove 231 is formed in the side wall of the filter 23; a placing spring 224 is fixedly connected to the inner bottom surface of the placing groove 221, and the top end of the placing spring 224 abuts against the filter sheet 23; the outlet pipe 22 is provided with a positioning part 5, and the positioning part 5 can lock the filter sheet 23. The positioning member 5 includes a positioning rod 51, a pressing plate 52, and a positioning spring 53; the positioning rod 51 is slidably arranged on the outer wall of the air outlet pipe 22 in a penetrating manner, the positioning rod 51 is horizontally arranged, the positioning rod 51 is arranged in the placing cavity 222 in a penetrating manner, the positioning rod 51 can be inserted into the positioning groove 231, the filter sheet 23 can be locked by the positioning rod 51, the limiting groove 511 is formed in the lower end face of the positioning rod 51, the limiting rod 62 can be inserted into the limiting groove 511, and the limiting rod 62 can further lock the positioning rod 51, so that the stability of the filter sheet 23 locking by the positioning rod 51 is improved; the pressing plate 52 is fixedly connected to the end wall of one end of the positioning rod 51 far away from the filter sheet 23; the positioning spring 53 is sleeved on the positioning rod 51 and located at the outer side of the air outlet pipe 22, one end of the positioning spring 53 is fixedly connected with the pressing plate 52, the other end of the positioning spring 53 is fixedly connected with the air outlet pipe 22, and the positioning spring 53 is in a compressed shape. After scraper 33 used a period of time, first contact 74 and second contact 75 contacted each other to electrify electro-magnet 65, electro-magnet 65 can adsorb iron sheet 63, iron sheet 63 drives gag lever post 62 and moves down, makes gag lever post 62 extract from spacing groove 511, then positioning spring 53 drives locating lever 51 and extracts from constant head tank 231, thereby has relieved locating lever 51 and has locked filter 23, can regularly change filter 23, has increased the filter effect of filter 23 to the flue gas.
The implementation principle of the hot water recirculation system for recovering the waste heat of the flue gas in the embodiment of the application is as follows: when filter 23 needs to be cleaned, at first, motor 41 is started, motor 41 drives transmission rod 42 to rotate, transmission rod 42 drives second bevel gear 421 to rotate, second bevel gear 421 drives first bevel gear 321 to rotate, first bevel gear 321 drives rotation shaft 32 to rotate, rotation shaft 32 can drive sleeve 331 to rotate, sleeve 331 drives scraper 33 to rotate, make scraper 33 clear up filter 23, thereby the problem that the filtration pore on filter 23 is easy to block is improved, the impurity scraped off by scraper 33 can fall into collecting tank 341, collecting tank 341 collects impurity, and the occurrence of the condition that impurity falls into waste heat recovery casing 2 is reduced.
When the scraper 33 rotates, the scraper 33 drives the second gear 76 to rotate, when the second gear 76 rotates to the position of the first gear 73, the second gear 76 drives the first gear 73 to rotate, the first gear 73 drives the screw 71 to rotate, the screw 71 drives the slider 72 to vertically move, the slider 72 drives the first contact 74 to vertically move, when the first contact 74 and the second contact 75 contact each other, the electromagnet 65 is energized, the electromagnet 65 can attract the iron sheet 63, the iron sheet 63 drives the limiting rod 62 to move downwards, at this time, the limiting spring 64 is in a compressed state, when the limiting rod 62 is pulled out from the limiting groove 511, the positioning spring 53 drives the pressing plate 52 to move towards the side away from the filter sheet 23, so that the positioning rod 51 is pulled out from the positioning groove 231, thereby unlocking the filter sheet 23 by the positioning rod 51 and completing the disassembly of the filter sheet 23, after the scraper 33 is used for a period of time, the filter sheet 23 can be replaced at regular time, and the filtering effect of the filter sheet 23 on smoke is increased.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a hot water recirculation system for flue gas waste heat recovery, includes boiler body (1) and installs flue gas waste heat recovery casing (2) on boiler body (1), its characterized in that: flue gas waste heat recovery casing (2) are through intake pipe (21) and boiler body (1) intercommunication, the top fixedly connected with outlet duct (22) of flue gas waste heat recovery casing (2), the mouth of pipe department of outlet duct (22) installs cassette (23), install clearance part (3) that are used for clearing up cassette (23) on outlet duct (22), clearance part (3) are including fixed plate (31), rotation axis of rotation (32) of installing on fixed plate (31), the scraper blade (33) of installing on axis of rotation (32) of fixed connection on outlet duct (22) inner wall, the lateral wall of scraper blade (33) contacts with the lateral wall of cassette (23), install on outlet duct (22) and be used for driving axis of rotation (32) pivoted driver part (4).
2. The hot water recirculation system for flue gas waste heat recovery as claimed in claim 1, wherein: the end face of the air outlet pipe (22) is provided with a placing groove (221) for placing the filter disc (23), and the air outlet pipe (22) is provided with a positioning component (5) for locking the filter disc (23).
3. A hot water recirculation system for flue gas waste heat recovery according to claim 2, characterized in that: the positioning component (5) comprises a positioning rod (51) arranged on the side wall of the air outlet pipe (22) in a penetrating mode, and a positioning groove (231) for inserting the positioning rod (51) is formed in the side wall of the filter sheet (23).
4. A hot water recirculation system for flue gas waste heat recovery according to claim 3, characterized in that: fixedly connected with clamp plate (52) on the end wall of cassette (23) one end is kept away from in locating lever (51), the cover is equipped with positioning spring (53) on locating lever (51), the one end and clamp plate (52) fixed connection of positioning spring (53), the other end and outlet duct (22) fixed connection of positioning spring (53), positioning spring (53) are the compression form, install spacing part (6) that are used for locking locating lever (51) on outlet duct (22).
5. The hot water recirculation system for flue gas waste heat recovery according to claim 4, characterized in that: the inside integrated into one piece of outlet duct (22) has places chamber (222), locating lever (51) are worn to establish and are placed in chamber (222), spacing part (6) include fixed block (61) of fixed connection on placing chamber (222) inner wall, slide and wear to establish gag lever post (62) on fixed block (61), iron sheet (63) of fixed connection bottom gag lever post (62), establish spacing spring (64) and fixed connection on placing chamber (222) inner wall on spacing spring (62) and electromagnet (65) of fixed connection, set up on locating lever (51) and supply gag lever post (62) male spacing groove (511), iron sheet (63) and electromagnet (65) cooperation are used, install control unit (7) that are used for opening electromagnet (65) on scraper blade (33).
6. The hot water recirculation system for flue gas waste heat recovery according to claim 5, characterized in that: the inner wall of the air outlet pipe (22) is provided with an installation groove (223) communicated with the placing cavity (222), the control part (7) comprises a screw rod (71) rotatably arranged on the inner wall of the placing cavity (222), a sliding block (72) in threaded sleeve on the screw rod (71), a first gear (73) sleeved on the screw rod (71) and fixedly connected with the screw rod (71), a first contact (74) arranged on the sliding block (72), a second contact (75) arranged on the inner wall of the placing cavity (222) and matched with the first contact (74), and a second gear (76) fixedly connected with the scraper blade (33), the first contact (74) and the second contact (75) are electrically connected with the electromagnet (65) through conducting wires, the first gear (73) extends to the inner side of the air outlet pipe (22) through the mounting groove (223), and the first gear (73) can be meshed with the second gear (76).
7. The hot water recirculation system for flue gas waste heat recovery as claimed in claim 1, wherein: the scraper is characterized in that an external thread is formed in the rotating shaft (32), a sleeve (331) is fixedly connected to the end wall of the scraper (33), and the rotating shaft (32) is sleeved with the sleeve (331) in a threaded mode.
8. The hot water recirculation system for flue gas waste heat recovery as claimed in claim 1, wherein: the side wall of one side, away from the filter sheet (23), of the scraper blade (33) is fixedly connected with a collecting plate (34), and a collecting groove (341) is formed in the side wall, facing one side of the scraper blade (33), of the collecting plate (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114941845A (en) * | 2022-04-28 | 2022-08-26 | 靖江中环信环保有限公司 | Comprehensive treatment device for dust-containing waste gas |
| CN115738544A (en) * | 2022-12-08 | 2023-03-07 | 北京青年路混凝土有限公司 | Dust removal system for concrete production workshop |
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