CN116576575B - Boiler system and use method thereof - Google Patents
Boiler system and use method thereof Download PDFInfo
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- CN116576575B CN116576575B CN202310812605.XA CN202310812605A CN116576575B CN 116576575 B CN116576575 B CN 116576575B CN 202310812605 A CN202310812605 A CN 202310812605A CN 116576575 B CN116576575 B CN 116576575B
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- guide rail
- tail gas
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002485 combustion reaction Methods 0.000 claims abstract description 129
- 238000005265 energy consumption Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 125
- 238000004140 cleaning Methods 0.000 claims description 96
- 239000000428 dust Substances 0.000 claims description 76
- 238000001914 filtration Methods 0.000 claims description 76
- 238000002156 mixing Methods 0.000 claims description 71
- 239000002912 waste gas Substances 0.000 claims description 51
- 239000000779 smoke Substances 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 28
- 238000010992 reflux Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- 239000000567 combustion gas Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000007790 scraping Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000010812 mixed waste Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2202/00—Fluegas recirculation
- F23C2202/30—Premixing fluegas with combustion air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to the technical field of boiler equipment, in particular to a boiler system, and in particular relates to a use method of the boiler system. The energy consumption loss of heating is effectively reduced, and the energy consumption ratio of combustion is improved.
Description
Technical Field
The invention relates to the technical field of boiler equipment, in particular to a boiler system, and in particular relates to a use method of the boiler system.
Background
The industrial boiler products are divided into two types, namely steam for generating electricity or supplying gas, such as steam vaporization used in a fertilizer plant, coal is used as a raw material, chemical fertilizers are synthesized, the industrial boiler is a typical industrial boiler, coal is used for the majority, a waste heat boiler is used for recycling waste heat in general in fuel gas, the industrial boiler is a circulating fluidized bed boiler, the industrial boiler is an important heat energy power device, the heat energy in flue gas cannot be recycled in the use process of the existing industrial boiler, the problem that the waste of the use energy of the industrial boiler is large is caused because the flue gas is directly discharged to the external environment is avoided, and the environmental friendliness of the industrial boiler is reduced.
Chinese patent CN213746829U discloses an environmental protection type industrial boiler capable of recovering heat energy from flue gas, which comprises a bottom plate, four corners of the top surface of the bottom plate are fixedly connected with four supporting springs, the top of each supporting spring is fixedly connected with a bearing plate, the top of each bearing plate is fixedly connected with a supporting arc plate, and the top of each supporting arc plate is fixedly connected with a furnace body. According to the utility model, through the matched use of the water inlet pipe, the external rust-proof protection box, the fire-proof pouring material box, the metal inner box, the drainage pump, the drainage pipe, the exhaust fan, the baffle, the air duct, the galvanized iron sheet, the main pipeline, the anchoring piece and the fire-proof pouring material layer, heat energy in flue gas can be recovered, so that the energy utilization rate of the industrial boiler is higher, and the problem that the industrial boiler has larger energy waste due to the fact that the heat energy in the flue gas cannot be recovered in the use process of the industrial boiler is solved, and the flue gas is prevented from being directly discharged to the external environment, so that a large amount of heat energy is dissipated.
The heat energy in the flue gas can be recycled, but only the oxygen which is not fully combusted exists in the flue gas when the boiler is combusted is utilized, and meanwhile, air outside the boiler is directly sucked into the boiler to be combusted, if the temperature of the external air is too low, the heating energy efficiency is reduced, and meanwhile, the heat energy loss of the boiler is generally the loss caused by the emission of the outer wall of the boiler, so that the loss is prevented, and the heating energy consumption is wasted.
Disclosure of Invention
Aiming at the problems existing in the prior art, the boiler system and the using method thereof are provided, the energy consumption loss of heating is effectively reduced through the circulating energy-saving utilization device, and the energy consumption ratio of combustion is improved.
In order to solve the problems in the prior art, the invention provides a boiler system, which comprises a circulating energy-saving utilization device arranged on a reflow burning boiler, wherein the top of the reflow burning boiler is provided with a smoke outlet, the circulating energy-saving utilization device comprises an air flow filtering guide mechanism arranged at the smoke outlet of the reflow burning boiler, the outer wall of the reflow burning boiler is also provided with a tail gas circulating guide rail, the tail gas circulating guide rail is communicated with the air flow filtering guide mechanism, the outer side of the tail gas circulating guide rail is sleeved with a rotary cleaning sleeve, a tail gas circulating cavity is formed by matching the tail gas circulating guide rail and the rotary cleaning sleeve, the reflow burning boiler is also provided with a rotary driving device for driving the rotary cleaning sleeve to rotate, the bottom of the reflow burning boiler is provided with an air flow mixing combustion chamber, the side of the air flow mixing combustion chamber is provided with a mixing conveying device, the input end of the mixing conveying device is communicated with the output end of the tail gas circulating guide rail, and the output end of the mixing conveying device is communicated with the air mixing combustion chamber.
Preferably, the air flow filtering guide mechanism comprises an air filtering box arranged on the tail gas circulation guide rail, a first air inlet pipe of the air filtering box is communicated with the backflow combustion boiler, a first air outlet pipe of the air filtering box is communicated with the tail gas circulation guide rail, a drawing frame is further arranged in the air filtering box, and an air filtering net is arranged on the drawing frame.
Preferably, the drawing frame comprises three groups which are arranged at intervals, the drawing frame is arranged along the air filtering box from top to bottom, a guiding clamping groove is formed in the inner wall of one side surface of the air filtering box, and the drawing frame comprises a filter screen mounting frame penetrating into the air filtering box and a push-pull handle exposing out of the outer side surface of the air filtering box;
the air filter screen comprises a first air filter screen, a second air filter screen and a third air filter screen which are arranged at intervals from top to bottom, wherein a plurality of filter meshes for filtering slag or dust particles in flue gas are arranged on the screen surface of the first air filter screen at intervals; the second air filter screen adopts an active carbon filter screen; the third air filter adopts a ceramic filter screen;
a first smoke dust particle sensor is arranged on the pipe wall of the smoke outlet and is used for detecting the purity of the air flow emitted from the smoke outlet;
A second smoke dust particle sensor is arranged on the pipe wall of the outlet end of the air flow filtering and guiding mechanism and is used for detecting the purity of the air flow filtered by the air filtering box;
the back flow combustion boiler is provided with a micro-controller and a buzzer, the first smoke dust particle sensor and the second smoke dust particle sensor are respectively connected with the micro-controller in a communication mode, and when the micro-controller judges that the air flow purity detected by the second smoke dust particle sensor cannot meet the preset filtering requirement or the time reaching the preset filtering requirement exceeds the preset filtering time, the micro-controller controls the buzzer to perform early warning.
Preferably, the upper end of the tail gas circulation guide rail is provided with a second air inlet pipe, the lower end of the tail gas circulation guide rail is provided with a second air outlet pipe, the tail gas circulation guide rail is provided with a spiral rail, a gap of the spiral rail is used for guiding air to flow, a liquid circulation cavity is further formed in the spiral rail, a liquid inlet end of the liquid circulation cavity is provided with a first liquid inlet pipe, a liquid outlet end of the liquid circulation cavity is provided with a first liquid outlet pipe, and one end of the first liquid outlet pipe, far away from the liquid circulation cavity, is communicated with the backflow combustion boiler.
Preferably, the inner wall of the rotary cleaning sleeve is provided with a first vertical limit rail, the outer wall of the rotary cleaning sleeve is also provided with a disassembly opening, the inside of the disassembly opening is provided with a disassembly block, the disassembly block is provided with a second vertical limit rail, the second vertical limit rail is mutually communicated with the first vertical limit rail, the inside of the second vertical limit rail is provided with a limit cleaning head, and the limit cleaning head is mounted in clamping connection with the spiral rail.
Preferably, the spacing clearance head includes spacing slider of spacing joint on dismantling the piece, is equipped with spiral clearance piece on the slider of spacing, and spiral clearance piece and spiral rail's shape mutually matches, and spiral clearance piece's one end is equipped with scrapes the material mouth, and spiral clearance piece's inner wall still is equipped with the circulation of air mouth.
Preferably, the rotary driving device comprises a mounting frame arranged on the reflow burning boiler, a rotary driver is arranged on the mounting frame, a driving wheel is arranged at the output end of the rotary driver, and the rotary driving device further comprises a driven gear ring arranged on the outer side of the rotary cleaning sleeve, and the driven gear ring is meshed with the driving wheel.
Preferably, the air current hybrid combustor is including installing the installation base in backward flow burning boiler bottom, and the inner wall of installation base is equipped with the air inlet chamber, and the rotation is installed to the inside rotation of air inlet chamber, and the bottom fixed mounting of installation base has the burning bottom plate, is equipped with the several ash hole that falls on the burning bottom plate, still installs on the burning bottom plate and adjusts the bottom plate, is equipped with on the adjusting the bottom plate and burns bottom plate assorted ash hole that falls, and the lateral part of adjusting the bottom plate still is equipped with the regulation handle.
Preferably, the autorotation mixing head is in a ring shape, a circulation cavity is arranged in the autorotation mixing head, a plurality of air inlets are arranged at the bottom of the autorotation mixing head, and a plurality of air flow fan blades which are uniformly distributed at equal intervals are arranged on the inner wall of the autorotation mixing head.
Preferably, the mixing and conveying device comprises a suction pump arranged beside the air flow mixing combustion chamber, an air suction pipe is arranged in the suction pump, a plurality of suction ports are arranged on the air suction pipe, one suction port of the air suction pipe is communicated with the outside air, the other air outlet of the air suction pipe is communicated with a second air outlet pipe of the tail gas circulation guide rail, an air delivery pipe is arranged at the output end of the suction pump, and one end, far away from the suction pump, of the air delivery pipe is communicated with an air inlet cavity of the air flow mixing combustion chamber.
A method of using a boiler system, comprising the steps of;
s1, injecting water into the reflux combustion boiler from a water inlet when the reflux combustion boiler works;
s2, then, a worker adds a combustion object into the mixed combustion chamber, heat energy generated by the combustion object is conducted to the backflow combustion boiler, meanwhile, combustion waste gas in the backflow combustion boiler is discharged from a smoke outlet, when the waste gas is discharged from the smoke outlet, the air flow filtering guide mechanism can guide the waste gas to enter a circulating circulation cavity matched between the tail gas circulating guide rail and the rotary cleaning sleeve, the air flow filtering guide mechanism can effectively filter the waste gas, a large amount of dust particles in the waste gas are prevented from directly entering the circulating circulation cavity, the waste gas flows in the circulating circulation cavity and is discharged, heat energy is effectively conducted to the tail gas circulating guide rail and the rotary cleaning sleeve, the tail gas circulating guide rail and the rotary cleaning sleeve keep heat energy, the loss temperature of the outer wall of the backflow combustion boiler can be effectively avoided, and meanwhile, the energy consumption loss of heating is effectively reduced;
S3, when the exhaust gas circulates through the circulating circulation cavity, a large amount of dust is adhered to the exhaust gas circulating guide rail, and when regular cleaning is needed, the rotary cleaning sleeve is driven to rotate by the rotary driving device, so that the cleaning end inside the rotary cleaning sleeve can clean the exhaust gas circulating guide rail, and the exhaust gas maintains good circulation in the circulating circulation cavity;
s4, when the air flow mixing combustion chamber is in combustion, the mixing conveying device can suck fresh air outside the reflux combustion boiler and part of waste gas discharged by the tail gas circulation guide rail, the mixed air is conveyed into the air flow mixing combustion chamber for combustion, and the part of waste gas discharged by the tail gas circulation guide rail is mixed with the fresh air outside the reflux combustion boiler for combustion, so that the temperature of combustion gas can be effectively ensured, the temperature of the combustion gas is prevented from being too low, and the energy consumption ratio of combustion is reduced.
Preferably, a great amount of dust is attached to the tail gas circulation guide rail when the waste gas circulates in the circulation cavity, and the cleaning interval time of the regular cleaning is obtained in the process of regular cleaning by the following method:
extracting the maximum attached dust mass in a theoretical unit time;
the quality of the actual attached dust corresponding to each unit time is monitored in real time;
Acquiring cleaning interval time for cleaning at regular time by utilizing the maximum attached dust mass in the theoretical unit time and the actual attached dust mass corresponding to each unit time;
the cleaning interval time length of the timing cleaning is obtained through the following formula:
；
wherein T represents the cleaning interval duration of the timing cleaning;T 0 representing a preset initial time interval length;M 0 indicating the maximum dust adhering mass per theoretical unit time during normal operation;M si the representation is the firstiThe mass of the dust which is actually attached and corresponds to each unit time;nrepresenting the total number of units of time.
Compared with the prior art, the beneficial effect that this application had is:
1. when the reflux combustion boiler works, water is injected into the reflux combustion boiler from the water inlet, then a worker adds combustion matters into the mixed combustion chamber, heat energy generated by the combustion matters is conducted to the reflux combustion boiler, meanwhile, combustion waste gas in the reflux combustion boiler is discharged from the smoke outlet, when the waste gas is discharged from the smoke outlet, the air flow filtering guide mechanism guides the waste gas to enter a circulating circulation cavity matched between the tail gas circulating guide rail and the rotary cleaning sleeve, the air flow filtering guide mechanism can effectively filter the waste gas, a large amount of dust particles in the waste gas are prevented from directly entering the circulating circulation cavity, the waste gas is discharged after flowing in the circulating circulation cavity, and the heat energy is effectively conducted to the tail gas circulating guide rail and the rotary cleaning sleeve, so that the tail gas circulating guide rail and the rotary cleaning sleeve keep heat energy, the waste gas can effectively avoid the loss temperature of the outer wall of the reflux combustion boiler, and the energy consumption loss of heating is effectively reduced;
2. When the air flow mixed combustion chamber is in combustion, the mixing and conveying device can suck fresh air outside the reflux combustion boiler and part of waste gas exhausted by the tail gas circulation guide rail, the mixed air and part of waste gas exhausted by the tail gas circulation guide rail are mixed with the fresh air outside the reflux combustion boiler and then are combusted, the temperature of combustion gas can be effectively ensured, the temperature of the combustion gas is prevented from being too low, and the energy consumption ratio of combustion is reduced.
Drawings
FIG. 1 is a flow chart of exhaust gas recycling of a boiler system.
Fig. 2 is a schematic perspective view of a boiler system.
Fig. 3 is a schematic perspective view of a boiler system.
Fig. 4 is a partial enlarged view at a in fig. 3.
FIG. 5 is a plan cross-sectional view of an air flow filter guide mechanism in a boiler system.
Fig. 6 is a top view of the first filter;
fig. 7 is a top view of a second filter;
figure 8 is a top view of a third filter;
FIG. 9 is a schematic illustration of an exploded view of an exhaust gas recirculation guide rail and a rotating cleaning sleeve in a boiler system.
FIG. 10 is a schematic perspective view of a rotating cleaning sleeve and disassembly block in a boiler system.
FIG. 11 is a schematic perspective view of a spacing cleaning head in a boiler system.
FIG. 12 is a schematic perspective view of a spacing cleaning head in a boiler system.
Fig. 13 is a schematic perspective view of an exhaust gas recirculation guide rail in a boiler system.
FIG. 14 is a schematic perspective view of a gas flow mixing combustor in a boiler system.
Fig. 15 is a perspective view of a rotating mixing head in a boiler system.
The reference numerals in the figures are:
1-a return firing boiler; 11-water inlet; 12-a water storage port; 13-a smoke outlet; 2-an air flow filtration guide mechanism; 21-an air filtration tank; 2101-guide card slot; 211-a first air inlet pipe; 212-a first air outlet pipe; 22-drawing frame; 2202-push-pull handle; 23-a first air filter screen; 24-a second air filter screen; 25-a third air filter screen; 3-tail gas circulation guide rails; 31-a second air inlet pipe; 32-a second air outlet pipe; 33-spiral track; 331-a first liquid inlet pipe; 332-a first liquid outlet pipe; 4-rotating the cleaning sleeve; 41-a first vertical limit rail; 42-dismantling port; 43-disassembling the block; 431-a second vertical stop rail; 44-limiting the cleaning head; 441-limiting slide blocks; 442-spiral cleaning block; 4421-an air vent; 4422-a scraping port; 5-a rotary drive; 51-mounting rack; 52-a rotary drive; 53-a driving wheel; 54-driven ring gear; 6-an air flow mixing combustion chamber; 61-mounting a base; 62-combustion floor; 63-adjusting the soleplate; 631-adjusting the handle; 64-autorotation mixing head; 641-inlet holes; 642-air flow fan blades; 7-a mixing conveyor; 71-a suction pump; 72-exhaust pipe; 73-gas pipe.
Description of the embodiments
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
As shown in fig. 1 to 12:
the utility model provides a boiler system, including installing the circulation energy-conserving utilization device on reflow burning boiler 1, reflow burning boiler 1's top is equipped with out flue 13, circulation energy-conserving utilization device is including installing the air current filtration guiding mechanism 2 at reflow burning boiler 1 out flue 13, tail gas circulation guiding rail 3 is still installed to reflow burning boiler 1's outer wall, tail gas circulation guiding rail 3 and air current filtration guiding mechanism 2 intercommunication, tail gas circulation guiding rail 3's outside cover is equipped with rotatory clearance sleeve pipe 4, the cooperation forms tail gas circulation cavity between tail gas circulation guiding rail 3 and the rotatory clearance sleeve pipe 4, still install rotatory drive arrangement 5 of rotatory clearance sleeve pipe 4 pivoted on the reflow burning boiler 1, the air current mixing combustion chamber 6 is installed to reflow burning boiler 1's bottom, mixing conveyor 7 is installed to the side of air current mixing combustion chamber 6, mixing conveyor 7's input and tail gas circulation guiding rail 3's output intercommunication, mixing conveyor 7's input and outside air intercommunication, mixing conveyor 7's output and air mixing combustion chamber 6 intercommunication.
The side part of the reflow burning boiler 1 is also provided with a water inlet 11 and a water storage port 12, when the reflow burning boiler 1 works, water is firstly injected into the reflow burning boiler 1 from the water inlet 11, then a worker adds a combustion object into the mixed burning chamber, heat energy generated by the combustion object is conducted to the reflow burning boiler 1, meanwhile, combustion waste gas in the reflow burning boiler 1 is discharged from a smoke outlet 13, when the waste gas is discharged from the smoke outlet 13, the air flow filtering guide mechanism 2 can guide the waste gas to enter a circulating cavity matched between the tail gas circulating guide rail 3 and the rotary cleaning sleeve (4), the air flow filtering guide mechanism 2 can effectively filter the waste gas, a large amount of dust particles in the waste gas are prevented from directly entering the circulating cavity, the waste gas is discharged after flowing in the circulating cavity, and the heat energy is effectively conducted to the tail gas circulating guide rail 3 and the rotary cleaning sleeve (4), when the tail gas circulation guide rail 3 and the rotary cleaning sleeve 4 keep heat energy, the temperature loss of the outer wall of the reflux combustion boiler 1 can be effectively avoided, the heating energy loss is effectively reduced, a great amount of dust is attached to the tail gas circulation guide rail 3 when the waste gas circulates in the circulation cavity, the rotary cleaning sleeve 4 is driven to rotate by the rotary driving device 5 when the waste gas needs to be cleaned regularly, the cleaning end in the rotary cleaning sleeve 4 can clean the tail gas circulation guide rail 3, the waste gas keeps good circulation in the circulation cavity, meanwhile, the mixing and conveying device 7 can suck fresh air outside the reflux combustion boiler 1 and partial waste gas discharged by the tail gas circulation guide rail 3 during combustion of the air flow mixing and conveying the mixed waste gas into the air flow mixing and combustion chamber 6 for combustion, the exhaust gas exhausted by the tail gas circulation guide rail 3 is mixed with fresh air outside the backflow combustion boiler 1 and then burnt, so that the temperature of combustion gas can be effectively ensured, the temperature of the combustion gas is prevented from being too low, and the energy consumption ratio of combustion is reduced.
As shown in fig. 1 and 5:
the air flow filtering guide mechanism 2 comprises an air filtering box 21 arranged on the tail gas circulation guide rail 3, a first air inlet pipe 211 of the air filtering box 21 is communicated with the reflow burning boiler 1, a first air outlet pipe 212 of the air filtering box 21 is communicated with the tail gas circulation guide rail 3, a drawing frame 22 is further arranged inside the air filtering box 21, and an air filtering net is arranged on the drawing frame 22.
The inside combustion exhaust gas of backward flow combustion boiler 1 discharges from the cigarette, and when the exhaust gas was discharged from outlet 13, the exhaust flue gas can be guided to the inside of air filter case 21 by first intake pipe 211 to the exhaust gas passes the inside that air filter net was discharged from first outlet duct 212 to tail gas circulation guide rail 3 and rotatory clearance sleeve pipe 4, can effectually filter the air through air filter net, avoids a large amount of dust particles to enter into inside the tail gas circulation guide rail 3 in the exhaust gas, and the staff needs regularly to take out air filter net through pull frame 22, changes or washs the air filter net.
Referring to fig. 5-7, the drawing frame 22 includes three groups that are arranged at intervals, the drawing frame 22 is arranged along the air filtering box 21 from top to bottom, a guiding clamping groove 2101 is formed in the inner wall of one side surface of the air filtering box 21, the guiding clamping groove 2101 is a built-in groove, the guiding clamping groove 2101 can limit an air filter screen, the air filter screen can be conveniently and quickly installed in the air filtering box 21, the drawing frame 22 includes a filter screen installation frame penetrating into the air filtering box 21 and a push-pull handle 2202 exposing the outer side surface of the air filtering box 21, and the filter screen installation frame can be pulled out of or pushed into the air filtering box 21 through the push-pull handle 2202;
The air filter screen comprises a first air filter screen 23, a second air filter screen 24 and a third air filter screen 25 which are arranged at intervals from top to bottom, and a plurality of filter meshes for filtering slag or dust particles in the flue gas are arranged on the screen surface of the first air filter screen 23 at intervals; the slag and the large-particle dust in the air flow can be filtered out directly and can be timely poured out through the push-pull handle 2202, one of the air filter screens can be pulled out at any time in the filtering process due to the arrangement of the three layers of the air filter screens, the whole filtering effect is not influenced, the second air filter screen 24 adopts the active carbon filter screen, and a large amount of dust and smoke can be adsorbed and filtered, so that the filtering effect is greatly improved; the third air filter 25 adopts a ceramic filter screen, can further filter the air flow after dust absorption, and integrally ensures that the air flow after three layers of filtration can be reused;
a first smoke dust particle sensor is arranged on the pipe wall of the smoke outlet 13 and is used for detecting the purity of the air flow emitted from the smoke outlet 13;
a second smoke dust particle sensor is arranged on the pipe wall of the outlet end of the air flow filtering and guiding mechanism 2 and is used for detecting the purity of the air flow filtered by the air filtering box 21; the evaluation standard of the air flow purity takes the amount of particulate matters, slag and the like contained in the air flow as the evaluation standard, and the air flow purity is low if the content is high, and the air flow purity is relatively high if the content is low;
The backflow combustion boiler 1 is provided with a micro-controller and a buzzer, the first smoke dust particle sensor and the second smoke dust particle sensor are respectively in communication connection with the micro-controller, and when the micro-controller judges that the air flow purity detected by the second smoke dust particle sensor cannot meet the preset filtering requirement or the time meeting the preset filtering requirement exceeds the preset filtering time, the micro-controller controls the buzzer to perform early warning. The time when the air flow emitted from the smoke outlet 13 meets the preset filtering requirement is the time difference between the air flow purity detected by the first smoke dust particle sensor and the air flow purity detected by the second smoke dust particle sensor meets the preset filtering requirement;
the technical scheme has the effects that: through setting up multilayer filtration, can realize accurate filtration, be convenient for simultaneously change the airstrainer that needs to be changed in filtration process, and not influence whole filter effect to through smog dust particle sensor to the detection of air current, can evaluate the filter effect, the convenience is the airstrainer in time changed.
As shown in fig. 1, 6 and 10:
The upper end of tail gas circulation guide rail 3 is equipped with second intake pipe 31, the lower extreme of tail gas circulation guide rail 3 is equipped with second outlet duct 32, be equipped with spiral rail 33 on the tail gas circulation guide rail 3, the clearance of spiral rail 33 is used for guiding the air flow, the inside of spiral rail 33 still is equipped with the liquid circulation cavity, the feed liquor end of liquid circulation cavity is equipped with first feed liquor pipe 331, the play liquid end of liquid circulation cavity is equipped with first drain pipe 332, the one end that liquid circulation cavity was kept away from to first drain pipe 332 communicates with reflow burning boiler 1.
When the exhaust gas is discharged from the smoke outlet 13, the air flow filtering guide mechanism 2 can guide the exhaust gas to enter the spiral rail 33 inside from the second air inlet pipe 31, the spiral rail 33 is matched with the rotary cleaning sleeve 4 to guide and convey the air flow in a spiral manner, the exhaust gas in spiral circulation can be effectively distributed in the tail gas circulation guide rail 3, the temperature of the exhaust gas is conducted to the tail gas circulation guide rail 3 and the rotary cleaning sleeve 4, meanwhile, the tail gas circulation guide rail 3 and the rotary cleaning sleeve 4 are heated to form an insulating layer, the temperature loss of the outer wall of the reflux combustion boiler 1 can be effectively avoided, the heating energy consumption is effectively reduced, a liquid circulation cavity is further formed in the inner wall of the spiral rail 33 and is used for connecting a water inlet pipe 331, the water inlet pipe is used for conveying water liquid to the first water inlet pipe 331, the water liquid entering the liquid circulation cavity can be driven by heat energy, the preheated water can be conveyed to the water inlet 11 of the reflux combustion boiler 1 through the first liquid outlet pipe 332. The water temperature heating efficiency is effectively improved.
As shown in fig. 6 and 7:
the inner wall of rotatory clearance sleeve pipe 4 is equipped with first vertical spacing rail 41, and rotatory clearance sleeve pipe 4's outer wall still is equipped with dismantles mouthful 42, and the inside of dismantlement mouthful 42 is equipped with dismantles piece 43, is equipped with the vertical spacing rail 431 of second on the dismantlement piece 43, and the vertical spacing rail 431 of second communicates each other with first vertical spacing rail 41, and the inside of the vertical spacing rail 431 of second has spacing clearance head 44, and spacing clearance head 44 and spiral rail 33 joint installation.
The exhaust gas circulation guide rail 3 can make a large amount of dust dirt that adheres to on the spiral rail 33 for a long time, the staff needs to carry through and clear up spiral rail 33 regularly, avoid causing the jam, during the clearance, the staff removes the dismantlement piece 43 of rotatory clearance sleeve pipe 4 from dismantling mouth 42, after dismantlement piece 43 was dismantled, the staff installs the clearance department of spiral rail 33 with spacing clearance head 44 joint from dismantling mouth 42, the staff will dismantlement piece 43 again install the dismantlement mouth 42 position of rotatory clearance sleeve pipe 4, make the vertical spacing rail 431 of second of dismantlement piece 43 and spacing clearance joint, after the dismantlement piece 43 joint is installed, drive rotatory clearance sleeve rotation through rotary driving device 5, cooperation second vertical spacing rail 431 and the vertical spacing rail 41 of first promotion clearance head 44 move along spiral rail 33 when rotatory clearance sleeve pipe rotates, spacing clearance head 44 can be along the clearance head 44 simultaneously along the vertical spacing rail 431 of second and first vertical spacing rail 41 lift, the clearance head 44 can scrape the clearance of spiral rail 33 and collect the dust, the clearance sleeve pipe is removed to the inside clearance sleeve pipe 4 and the inside can keep the inside clearance sleeve pipe 33 to rotate smoothly after rotatory clearance sleeve pipe 33 has been carried out, the clearance sleeve pipe is removed to the inside that has had the dust to the clearance sleeve pipe is removed, the inside has been removed to the clearance sleeve pipe is removed to the inside has the clearance groove, and the dust can be removed, the inside is removed, and has good cleaning efficiency.
As shown in fig. 6, 8 and 9:
the spacing cleaning head 44 includes spacing slider 441 of spacing joint on dismantling the piece 43, is equipped with spiral cleaning block 442 on the spacing slider 441, and spiral cleaning block 442 and spiral rail 33's shape mutually match, and the one end of spiral cleaning block 442 is equipped with scrapes material mouth 4422, and the inner wall of spiral cleaning block 442 still is equipped with air circulation mouth 4421.
The spacing slider 441 is used for spacing joint to slide on the vertical spacing rail 431 of second and the vertical spacing rail 41 of first, the spiral clearance piece 442 is used for spacing joint in the clearance department of spiral rail 33, rotatory drive arrangement 5 drives rotatory clearance cover and rotates, cooperation second vertical spacing rail 431 and the vertical spacing rail 41 of first promote spacing slider 441 and remove when rotatory clearance cover rotates, can promote spiral clearance piece 442 along spiral rail 33 spiral removal when spacing slider 441 removes, the scraping mouth 4422 of spiral clearance piece 442 is used for scraping the attached dust of clearance spiral rail 33 inner wall, the dust of scraping can fall into the inside of spiral clearance piece 442, the air circulation mouth 4421 of spiral clearance piece 442 is convenient for gas circulation. Effective scraping and cleaning of dust adhering to the spiral track 33 by the spiral cleaning block 442
As shown in fig. 1 to 4:
the rotary driving device 5 comprises a mounting frame 51 arranged on the reflow burning boiler 1, a rotary driver 52 is arranged on the mounting frame 51, a driving wheel 53 is arranged on the output end of the rotary driver 52, the rotary driving device 5 further comprises a driven gear ring 54 arranged on the outer side of the rotary cleaning sleeve 4, and the driven gear ring 54 is meshed with the driving wheel 53.
The rotary driver 52 is preferably a servo motor, and when the exhaust gas circulates through the exhaust gas circulation cavity and the exhaust gas circulates through the exhaust gas circulation guide rail 3, a large amount of dust is attached to the exhaust gas circulation guide rail 3, and when regular cleaning is needed, the servo motor drives the driving wheel 53 to rotate, the driving wheel 53 drives the driven wheel to rotate, the driving wheel 53 drives the rotary cleaning sleeve 4 to rotate, and the rotary cleaning sleeve 4 drives the internal limiting cleaning head 44 to clean the inside of the exhaust gas circulation guide rail 3.
As shown in fig. 1 and 11:
the air flow mixing combustion chamber 6 comprises a mounting base 61 arranged at the bottom of the reflow combustion boiler 1, an air inlet chamber is arranged on the inner wall of the mounting base 61, an autorotation mixing head 64 is rotatably arranged in the air inlet chamber, a combustion bottom plate 62 is fixedly arranged at the bottom of the mounting base 61, a plurality of ash falling holes are formed in the combustion bottom plate 62, an adjusting bottom plate 63 is further arranged on the combustion bottom plate 62, ash falling holes matched with the combustion bottom plate 62 are formed in the adjusting bottom plate 63, and an adjusting handle 631 is further arranged on the side portion of the adjusting bottom plate 63.
When the reflux combustion boiler 1 needs to be heated, workers add combustion matters into the installation base 61, the combustion matters fall on the combustion bottom plate 62, the combustion bottom plate 62 is matched with the adjusting bottom plate 63 to carry out combustion heating on a combustion area, meanwhile, the mixing and conveying device 7 can suck fresh air outside the reflux combustion boiler 1 and partial waste gas discharged by the tail gas circulation guide rail 3 to be mixed, the mixed air is conveyed into an air inlet cavity of the inner wall of the installation base 61, the mixed air is uniformly conveyed to the combustion area through the autorotation mixing head 64 to be combusted, when dust in the combustion area needs to be cleaned, the workers rotate the adjusting bottom plate 63, and dust in the combustion area can fall into the area to be treated by overlapping dust falling holes in the adjusting bottom plate 63 with dust falling holes in the combustion bottom plate 62.
As shown in fig. 11 and 12:
the rotation mixing head 64 is ring-shaped, a circulation cavity is arranged in the rotation mixing head 64, a plurality of air inlets 641 are arranged at the bottom of the rotation mixing head 64, and a plurality of air flow fan blades 642 which are uniformly distributed at equal intervals are arranged on the inner wall of the rotation mixing head 64.
When air is required to be conveyed into the air flow mixing combustion chamber 6, the mixing and conveying device 7 sucks and mixes fresh air outside the backflow combustion boiler 1 and part of waste gas discharged by the tail gas circulation guide rail 3, and conveys the mixed gas into an air inlet chamber of the air flow mixing combustion chamber 6, the mixed gas enters an internal circulation cavity through an air inlet 641 at the bottom of the autorotation mixing head 64, the mixed gas in the circulation cavity is discharged from gaps of a plurality of air flow fan blades 642 to enter the air flow mixing combustion chamber 6, and the air flow enables the autorotation mixing head 64 to form autorotation when passing through the air flow fan blades 642.
As shown in fig. 1 to 2:
the mixing and conveying device 7 comprises a suction pump 71 arranged beside the air flow mixing combustion chamber 6, an air suction pipe 72 is arranged at the input of the suction pump 71, a plurality of suction ports are arranged on the air suction pipe 72, one suction port of the air suction pipe 72 is communicated with the outside air, the other air outlet of the air suction pipe 72 is communicated with the second air outlet pipe 32 of the tail gas circulation guide rail 3, an air conveying pipe 73 is arranged at the output end of the suction pump 71, and one end, far away from the suction pump 71, of the air conveying pipe 73 is communicated with the air inlet cavity of the air flow mixing combustion chamber 6.
When air is required to be conveyed into the air flow mixing combustion chamber 6, the suction pump 71 simultaneously sucks fresh air and part of waste gas discharged from the tail gas circulation guide rail 3 through the suction pipe 72, the fresh air and the waste gas are sucked into the suction pump 71 together to be mixed, and when the waste gas is mixed with the fresh air, the waste gas increases the temperature of the mixed gas, so that the influence on combustion energy efficiency caused by the fact that low-temperature air directly enters the air flow mixing combustion chamber 6 to be combusted is effectively avoided.
A method of using a boiler system, comprising the steps of;
s1, injecting water into the reflow burning boiler 1 from a water inlet 11 when the reflow burning boiler 1 works;
s2, then, a worker adds combustion matters into the mixed combustion chamber, heat energy generated by the combustion matters is conducted to the reflow combustion boiler 1, meanwhile, combustion waste gas in the reflow combustion boiler 1 is discharged from the smoke outlet 13, when the waste gas is discharged from the smoke outlet 13, the air flow filtering guiding mechanism 2 guides the waste gas to enter a circulating circulation cavity matched between the tail gas circulating guiding rail 3 and the rotary cleaning sleeve 4, the air flow filtering guiding mechanism 2 can effectively filter the waste gas, a large amount of dust particles in the waste gas are prevented from directly entering the circulating circulation cavity, the waste gas flows in the circulating circulation cavity and is discharged, the heat energy is effectively conducted to the tail gas circulating guiding rail 3 and the rotary cleaning sleeve 4, the heat energy is kept by the tail gas circulating guiding rail 3 and the rotary cleaning sleeve 4, the temperature loss of the outer wall of the reflow combustion boiler 1 can be effectively avoided, and the heating energy consumption loss is effectively reduced;
S3, when the exhaust gas circulates through the circulation cavity, a large amount of dust is attached to the exhaust gas circulation guide rail 3, and when regular cleaning is needed, the rotary cleaning sleeve 4 is driven to rotate by the rotary driving device 5, so that the cleaning end inside the rotary cleaning sleeve 4 can clean the exhaust gas circulation guide rail 3, and the exhaust gas keeps good circulation in the circulation cavity;
s4, when the air flow mixed combustion chamber 6 burns, the mixing conveying device 7 sucks fresh air outside the reflux combustion boiler 1 and part of waste gas discharged by the tail gas circulation guide rail 3, mixes and conveys the mixed waste gas into the air flow mixed combustion chamber 6 for combustion, and the part of waste gas discharged by the tail gas circulation guide rail 3 is mixed with the fresh air outside the reflux combustion boiler 1 for combustion, so that the temperature of combustion gas can be effectively ensured, the temperature of the combustion gas is prevented from being too low, and the energy consumption ratio of combustion is reduced.
Specifically, when the exhaust gas circulates through the exhaust gas circulation cavity, a great amount of dust is attached to the exhaust gas circulation guide rail 3, and in the process of cleaning regularly, the cleaning interval time of the regular cleaning is obtained by the following method:
extracting the maximum attached dust mass in a theoretical unit time;
the quality of the actual attached dust corresponding to each unit time is monitored in real time;
Acquiring cleaning interval time for cleaning at regular time by utilizing the maximum attached dust mass in the theoretical unit time and the actual attached dust mass corresponding to each unit time;
the cleaning interval time length of the timing cleaning is obtained through the following formula:
；
wherein T represents the cleaning interval duration of the timing cleaning;T 0 representing a preset initial time interval length;M 0 indicating the maximum dust adhering mass per theoretical unit time during normal operation;M si the representation is the firstiThe mass of the dust which is actually attached and corresponds to each unit time;nrepresenting the total number of units of time.
The technical effects of the technical scheme are as follows: the maximum dust mass that can theoretically adhere to the exhaust gas recirculation chamber per unit time is determined by theoretical calculation or experimental analysis. This value can be used as a reference index for evaluating the dust accumulation in the exhaust gas recirculation chamber.
The actual mass of dust adhering to the exhaust gas recirculation chamber per unit time (possibly at regular time intervals) is monitored in real time. The actual data is acquired through a sensor or monitoring equipment and is used for knowing the accumulation condition of dust in the exhaust gas circulation cavity in real time.
And calculating the time length of the regular cleaning interval of the cleaning waste gas circulation cavity by using the maximum dust attached mass in the theoretical unit time and the actual dust attached mass corresponding to each unit time. The time length of the guaranteed interval can be adjusted according to actual conditions so as to ensure that dust accumulation of the exhaust gas circulation cavity does not exceed a certain limit and maintain normal operation of the system.
Therefore, the technical scheme of the embodiment realizes the regular monitoring and cleaning of the dust attached in the exhaust gas circulation cavity, so as to maintain the efficient operation of the system, reduce the influence of dust accumulation on the system performance and reduce the maintenance and cleaning cost of the exhaust gas treatment equipment.
Meanwhile, the actual attached dust mass in each unit time and the maximum attached dust mass in the theoretical unit time are monitored, and the dynamic cleaning interval duration is calculated according to a set rule or algorithm. The frequency of cleaning can be adjusted according to the actual situation to ensure that dust accumulation in the exhaust gas recirculation chamber does not exceed a certain limit.
The start time interval of cleaning can be flexibly set according to the preset initial time interval length. Thus, the initial cleaning frequency can be adjusted according to specific requirements and actual conditions.
In calculating the cleaning interval duration, the cleaning interval duration can be better controlled by considering the total number of unit time so as to adapt to dust accumulation conditions of different time periods.
Therefore, by the formula, the proper cleaning interval duration is calculated according to the actual attached dust mass, the theoretical maximum attached dust mass in unit time, the total number of unit time and the preset initial time interval length, so that the regular cleaning and control of attached dust in the exhaust gas circulation cavity are realized, and the normal operation and performance of the system are maintained.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The utility model provides a boiler system, including installing the circulation energy-saving utilization device on backward flow burning boiler (1), the top of backward flow burning boiler (1) is equipped with outlet flue (13), a serial communication port, air current mixing combustion chamber (6) are installed to the bottom of backward flow burning boiler (1), mixing conveyor (7) are installed to the outer wall of backward flow burning boiler (1), tail gas circulation guide rail (3) and air current filtering guide mechanism (2) intercommunication, the outside cover of tail gas circulation guide rail (3) is equipped with rotatory clearance sleeve pipe (4), cooperation between tail gas circulation guide rail (3) and rotatory clearance sleeve pipe (4) forms tail gas circulation cavity, still install rotatory drive arrangement (5) that drive rotatory clearance sleeve pipe (4) rotated on backward flow burning boiler (1), mixing conveyor (7) are installed to the side of air current mixing combustion chamber (6), mixing conveyor (7) input and the output of tail gas circulation guide rail (3) communicate, mixing conveyor (7) input and mixing conveyor (6) communicate with each other with outside air delivery device (6);
The side part of the reflux combustion boiler (1) is also provided with a water inlet (11) and a water storage port (12);
the air flow filtering guide mechanism (2) comprises an air filtering box (21) arranged on the tail gas circulation guide rail (3), a first air inlet pipe (211) of the air filtering box (21) is communicated with the reflux combustion boiler (1), a first air outlet pipe (212) of the air filtering box (21) is communicated with the tail gas circulation guide rail (3), a drawing frame (22) is further arranged in the air filtering box (21), and an air filter screen is arranged on the drawing frame (22);
the upper end of the tail gas circulation guide rail (3) is provided with a second air inlet pipe (31), the lower end of the tail gas circulation guide rail (3) is provided with a second air outlet pipe (32), the tail gas circulation guide rail (3) is provided with a spiral rail (33), a gap of the spiral rail (33) is used for guiding air to flow, a liquid circulation cavity is further arranged in the spiral rail (33), a liquid inlet end of the liquid circulation cavity is provided with a first liquid inlet pipe (331), a liquid outlet end of the liquid circulation cavity is provided with a first liquid outlet pipe (332), and one end of the first liquid outlet pipe (332) far away from the liquid circulation cavity is communicated with the reflux combustion boiler (1);
the inner wall of the rotary cleaning sleeve (4) is provided with a first vertical limit rail (41), the outer wall of the rotary cleaning sleeve (4) is also provided with a disassembly opening (42), a disassembly block (43) is arranged in the disassembly opening (42), a second vertical limit rail (431) is arranged on the disassembly block (43), the second vertical limit rail (431) is communicated with the first vertical limit rail (41), a limit cleaning head (44) is arranged in the second vertical limit rail (431), and the limit cleaning head (44) is clamped and installed with the spiral rail (33); spacing clearance head (44) are including spacing slider (441) of spacing joint on dismantling piece (43), are equipped with spiral clearance piece (442) on spacing slider (441), and the shape of spiral clearance piece (442) and spiral rail (33) matches each other, and the one end of spiral clearance piece (442) is equipped with scrapes material mouth (4422), and the inner wall of spiral clearance piece (442) still is equipped with air circulation mouth (4421).
2. The boiler system according to claim 1, wherein the drawing frame (22) comprises three groups which are arranged at intervals, the drawing frame (22) is arranged along the air filtering box (21) from top to bottom, a guiding clamping groove (2101) is formed in the inner wall of one side surface of the air filtering box (21), and the drawing frame (22) comprises a filter screen mounting frame penetrating into the air filtering box (21) and a push-pull handle (2202) exposing the outer side surface of the air filtering box (21);
the air filter screen comprises a first air filter screen (23), a second air filter screen (24) and a third air filter screen (25) which are arranged at intervals from top to bottom, wherein a plurality of filter meshes for filtering slag or dust particles in flue gas are arranged on the screen surface of the first air filter screen (23) at intervals; the second air filter screen (24) adopts an active carbon filter screen; the third air filter screen (25) adopts a ceramic filter screen;
a first smoke dust particle sensor is arranged on the pipe wall of the smoke outlet (13) and used for detecting the purity of air flow scattered from the smoke outlet (13);
a second smoke dust particle sensor is arranged on the pipe wall of the outlet end of the air flow filtering and guiding mechanism (2) and used for detecting the purity of the air flow filtered by the air filtering box (21);
The backflow combustion boiler (1) is provided with a micro-controller and a buzzer, the first smoke dust particle sensor and the second smoke dust particle sensor are respectively connected with the micro-controller in a communication mode, and when the micro-controller judges that the air flow purity detected by the second smoke dust particle sensor cannot meet the preset filtering requirement or the time meeting the preset filtering requirement exceeds the preset filtering time, the micro-controller controls the buzzer to perform early warning.
3. A boiler system according to claim 1, wherein the rotary driving means (5) comprises a mounting frame (51) mounted on the reflow boiler (1), a rotary driver (52) is mounted on the mounting frame (51), a driving wheel (53) is mounted on the output end of the rotary driver (52), the rotary driving means (5) further comprises a driven gear ring (54) mounted on the outer side of the rotary cleaning sleeve (4), and the driven gear ring (54) is meshed with the driving wheel (53).
4. A boiler system according to claim 3, characterized in that the air flow mixing combustion chamber (6) comprises a mounting base (61) arranged at the bottom of the reflux combustion boiler (1), an air inlet chamber is arranged on the inner wall of the mounting base (61), a rotation mixing head (64) is rotatably arranged in the air inlet chamber, a combustion bottom plate (62) is fixedly arranged at the bottom of the mounting base (61), a plurality of ash falling holes are formed in the combustion bottom plate (62), an adjusting bottom plate (63) is further arranged on the combustion bottom plate (62), ash falling holes matched with the combustion bottom plate (62) are formed in the adjusting bottom plate (63), and an adjusting handle (631) is further arranged at the side part of the adjusting bottom plate (63); the self-rotation mixing head (64) is annular, a circulation cavity is arranged in the self-rotation mixing head (64), a plurality of air inlets (641) are formed in the bottom of the self-rotation mixing head (64), and a plurality of air flow fan blades (642) which are uniformly distributed at equal intervals are arranged on the inner wall of the self-rotation mixing head (64).
5. A boiler system according to claim 4, characterized in that the mixing conveyor (7) comprises a suction pump (71) arranged beside the air flow mixing combustion chamber (6), the suction pump (71) is provided with a suction pipe (72) at the input, a plurality of suction ports are arranged on the suction pipe (72), one suction port of the suction pipe (72) is communicated with the outside air, the other air outlet of the suction pipe (72) is communicated with the second air outlet pipe (32) of the tail gas circulation guide rail (3), the output end of the suction pump (71) is provided with an air pipe (73), and one end of the air pipe (73) far away from the suction pump (71) is communicated with the air inlet chamber of the air flow mixing combustion chamber (6).
6. A method of using a boiler system according to any of claims 1-5, comprising the steps of;
s1, injecting water into the reflux combustion boiler (1) from a water inlet (11) when the reflux combustion boiler (1) works;
s2, then, a worker adds combustion matters into the mixed combustion chamber, heat energy generated by the combustion matters is conducted to the backflow combustion boiler (1), meanwhile, combustion waste gas in the backflow combustion boiler (1) is discharged from a smoke outlet (13), when the waste gas is discharged from the smoke outlet (13), the air flow filtering guide mechanism (2) can guide the waste gas to enter a circulating cavity matched between the tail gas circulating guide rail (3) and the rotary cleaning sleeve (4), the air flow filtering guide mechanism (2) can effectively filter the waste gas, a large amount of dust particles in the waste gas are prevented from directly entering the circulating cavity, the waste gas flows in the circulating cavity and is discharged, the heat energy is effectively conducted to the tail gas circulating guide rail (3) and the rotary cleaning sleeve (4), the tail gas circulating guide rail (3) and the rotary cleaning sleeve (4) keep heat energy, the temperature loss of the outer wall of the backflow combustion boiler (1) can be effectively avoided, and meanwhile, the heating energy consumption is effectively reduced;
S3, when the exhaust gas circulates through the circulation cavity, a large amount of dust is attached to the exhaust gas circulation guide rail (3), and when regular cleaning is needed, the rotary cleaning sleeve (4) is driven to rotate by the rotary driving device (5), so that the cleaning end in the rotary cleaning sleeve (4) can clean the exhaust gas circulation guide rail (3), and the exhaust gas keeps good circulation in the circulation cavity;
s4, when the air flow mixing combustion chamber (6) burns, the mixing conveying device (7) can suck fresh air outside the backflow combustion boiler (1) and part of waste gas discharged by the tail gas circulation guide rail (3), the mixed air is conveyed into the air flow mixing combustion chamber (6) for burning, and part of waste gas discharged by the tail gas circulation guide rail (3) is mixed with the fresh air outside the backflow combustion boiler (1) for burning, so that the temperature of combustion gas can be effectively ensured, the temperature of the combustion gas is prevented from being too low, and the energy consumption ratio of burning is reduced.
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| CN217928741U (en) * | 2022-09-07 | 2022-11-29 | 沈阳市兴合热力供暖有限公司 | Boiler part flue gas recycle system |
| CN218583193U (en) * | 2022-10-18 | 2023-03-07 | 首佳综合能源服务有限公司 | Waste heat recovery device for gas boiler |
| CN116294202A (en) * | 2023-02-15 | 2023-06-23 | 任丘市宏旺采暖设备有限公司 | Biomass stove with baffling return heat exchange function |
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| CN116576575A (en) | 2023-08-11 |
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