CN111076200A - Boiler hearth soot blowing device and soot blowing method thereof - Google Patents
Boiler hearth soot blowing device and soot blowing method thereof Download PDFInfo
- Publication number
- CN111076200A CN111076200A CN201911166912.5A CN201911166912A CN111076200A CN 111076200 A CN111076200 A CN 111076200A CN 201911166912 A CN201911166912 A CN 201911166912A CN 111076200 A CN111076200 A CN 111076200A
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- Prior art keywords
- soot blowing
- soot
- boiler
- pipe
- drying
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- 239000004071 soot Substances 0.000 title claims abstract description 77
- 238000007664 blowing Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims description 7
- 238000001035 drying Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 230000001603 reducing effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 239000002956 ash Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a boiler furnace soot blower, which comprises a rack, wherein a motor is arranged on the rack, the output end of the motor is connected with the input end of a reduction gearbox, the output end of the reduction gearbox is connected with an output shaft, the output shaft is connected with a driving gear, the driving gear is connected with a driven gear through a chain, the bottom of the rack is connected with a drying assembly, the right side of the drying assembly is connected with an air inlet pipe, the left side of the drying assembly is rotatably connected with an exhaust pipe, the exhaust pipe penetrates through the driven gear, a soot blowing pipe is connected onto the exhaust pipe; according to the invention, the drying component is used for drying steam, when the steam passes through the drying component, the steam flows to drive the fan blades to rotate, the fan blades drive the rotating shaft to rotate together through the connecting seat, the rotating shaft drives the stirring rod to rotate, the stirring rod is used for stirring dried particles, the drying effect on the steam is good, and when soot is blown, the sealing component is in sealing contact with the outer wall of the boiler, so that the soot can be prevented from flying out.
Description
Technical Field
The invention relates to the technical field of boiler soot blowing, in particular to a boiler hearth soot blowing device and a soot blowing method thereof.
Background
For a coal-fired boiler, coking of a combustion water-cooled wall of a hearth, coke hanging of a high-temperature superheater and a reheater and dust deposition on a heating surface at the tail part are common inevitable phenomena. When the water wall is coked seriously, the large slag makes a cold slag hopper covered and cannot discharge slag; when the high-temperature superheater and the reheater are seriously coked, the flue gas gallery between partial heating surfaces is blocked; when the tail heating surface is seriously accumulated with dust, the heat transfer efficiency of a superheater, a reheater, an economizer and an air preheater is reduced, the exhaust gas temperature of the boiler is increased, and the boiler efficiency is reduced; the heating surface coking and dust deposition can also cause the overheating of the heating surface, aggravate the corrosion of the heating surface, shorten the service life of the heating surface, and seriously affect the normal operation of the boiler and even the personal safety of inspection personnel. Therefore, coking and ash deposition are difficult problems in the operation of the coal-fired power plant boiler.
Among the prior art, blow the ash and generally all adopt steam to blow to the boiler, steam soot blower can lead to flue gas humidity to increase, because generally all contain higher calcium or sulphur in the ashes, cause deposition and jam more easily, sometimes can also make the corruption aggravation, and when adopting steam to blow the ash, because the impact force of steam is great, can lead to the ashes to fly upward, and some ashes can fly out through the access hole on the boiler wall, and the ashes float in the air, cause the injury to staff's health.
Based on the above, the invention designs a boiler furnace soot blowing device and a soot blowing method thereof, so as to solve the above mentioned problems.
Disclosure of Invention
The invention aims to provide a boiler furnace soot blowing device and a soot blowing method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a soot blower for boiler furnace is composed of a machine frame, a motor on said machine frame, a speed reducer connected to output of said motor, the output end of the reduction gearbox is connected with an output shaft, a driving gear is fixedly connected on the output shaft, the driving gear is connected with a driven gear through a transmission chain, the top of the frame is provided with a through groove, the chain passes through the through groove, the bottom of the frame is fixedly connected with a drying component, the right side of the drying component is connected with an air inlet pipe, the air inlet pipe penetrates through the right side wall of the frame, the left side of the drying component is rotatably connected with an exhaust pipe, the exhaust pipe penetrates through the driven gear, the exhaust pipe is fixedly connected with the driven gear, a soot blowing pipe is connected to the exhaust pipe, the soot blowing pipe penetrates through the left side wall of the frame, a sealing assembly is arranged on the soot blowing pipe, and a control panel is arranged on the right side of the frame.
Preferably, the drying assembly comprises a box body, two sides of the box body are respectively connected with an air inlet pipe and an exhaust pipe, two groups of isolation nets are fixedly connected to the inner wall of the box body, drying particles are filled between the two groups of isolation nets, the left side of the isolation net is rotatably connected with a rotating shaft, the rotating shaft penetrates through the right side isolation net, the right end of the rotating shaft is connected with a connecting seat, fan blades are arranged on the connecting seat, a plurality of groups of stirring rods are fixedly connected to the left portion of the rotating shaft, and the plurality of groups of stirring rods are located between.
Preferably, seal assembly includes sealed shell, sealed shell is cylindric, sealed shell inner wall fixedly connected with multiunit spring, the spring butt has the connecting plate, it has elastic rubber pad to bond on the connecting plate, connecting plate and elastic rubber pad and sealed shell inner wall sliding contact, the soot blowing pipe passes sealed shell, connecting plate and elastic rubber pad.
Preferably, the four corners of the bottom of the rack are fixedly connected with electric telescopic rods, and the bottom ends of the electric telescopic rods are fixedly connected with bases.
Preferably, the control panel is connected with the motor and the electric telescopic rod in a control mode.
Preferably, the end part of the soot blowing pipe is provided with a soot blowing head, the end part of the soot blowing head is hemispherical, and the soot blowing head is provided with an air hole.
Preferably, the reference circle of the driving gear is smaller than that of the driven gear.
A soot blowing method for the soot blower of boiler furnace features that the blower is connected to external power supply, the electric telescopic rod is controlled by control panel to regulate the height of said soot blower, the electric telescopic rod drives machine frame to move, the soot blower is controlled to a position as high as the inlet of boiler, the soot blower and soot blower tube are extended in boiler, the sealing unit is in sealing contact with external wall of boiler, the elastic rubber pad is in sealing contact with external wall of boiler under the action of spring, the soot is prevented from flying out, the air inlet tube is connected to external steam delivering unit for blowing soot, and the steam is sucked in boiler via air inlet tube to dry it, the pivot drives the puddler and rotates, the puddler stirs dry granule, it is good to the drying effect of steam, steam after the drying is via the blast pipe discharge, through control panel starter motor, the motor drives the output shaft through the reducing gear box after slowing down and rotates, the output shaft drives the driving gear and rotates together, the driving gear passes through the chain and drives driven gear and rotate, driven gear drives the blast pipe and rotates, the blast pipe drives the soot blowing pipe and blows the ash head and rotate together, the realization is blown the ash to the interior comprehensive of boiler.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, steam is dried by the drying component, when the steam passes through the drying component, the steam flows to drive the fan blades to rotate, the fan blades drive the rotating shaft to rotate together through the connecting seat, the rotating shaft drives the stirring rod to rotate, the stirring rod stirs dried particles, the drying effect on the steam is good, when soot is blown, the sealing component is in sealing contact with the outer wall of the boiler, under the elastic action of the spring, the elastic rubber pad is in sealing contact with the outer wall of the boiler, the sealing effect is good, the soot can be prevented from flying out, the use is very convenient, and the high popularization value is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the drying assembly of the present invention;
FIG. 3 is a schematic view of the seal assembly of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical scheme of a soot blower for a boiler furnace: comprises a frame 1, a motor 2 is arranged on the frame 1, the output end of the motor 2 is connected with the input end of a reduction gearbox 3, the output end of the reduction gearbox 3 is connected with an output shaft 4, a driving gear 5 is fixedly connected on the output shaft 4, the reduction gearbox 3 can play a speed reducing effect and prevent the driving gear 5 from rotating too fast, the driving gear 5 is connected with a driven gear 8 through a transmission chain 6, a through groove 7 is formed in the top of the frame 1, the chain 6 passes through the through groove 7, a drying component 16 is fixedly connected to the bottom of the frame 1, the right side of the drying component 16 is connected with an air inlet pipe 17, the air inlet pipe 17 passes through the right side wall of the frame 1, the left side of the drying component 16 is rotatably connected with an exhaust pipe 9, steam enters the drying component 16 through the air inlet pipe 17 to be dried, the air exhaust pipe 9 is connected with a soot blowing pipe 10, the soot blowing pipe 10 penetrates through the left side wall of the rack 1, a sealing assembly 11 is arranged on the soot blowing pipe 10, the sealing assembly 11 can play a sealing role in soot blowing, soot is prevented from flying out, and a control panel 18 is arranged on the right side of the rack 1.
The drying component 16 comprises a box body 161, two sides of the box body 161 are respectively connected with an air inlet pipe 17 and an exhaust pipe 9, two groups of separation nets 163 are fixedly connected to the inner wall of the box body 161, dry particles 164 are filled between the two groups of separation nets 163, a rotating shaft 167 is rotatably connected to the left side separation net 163, the rotating shaft 167 penetrates through the right side separation net 163, a connecting seat 166 is connected to the right end of the rotating shaft 167, fan blades 162 are arranged on the connecting seat 166, a plurality of groups of stirring rods 165 are fixedly connected to the left portion of the rotating shaft 167, the fan blades 162 are driven to rotate when steam flows, the rotating shaft 167 drives the rotating shaft 167 to rotate together, the stirring rods 165 are driven by the rotating shaft 167 to rotate, the stirring rods 165 stir the dry particles 164, the steam can conveniently penetrate through the dry.
Wherein, seal assembly 11 includes sealed shell 111, sealed shell 111 is cylindricly, sealed shell 111 inner wall fixedly connected with multiunit spring 112, spring 112 butt has connecting plate 113, it has elastic rubber pad 114 to bond on the connecting plate 113, connecting plate 113 and elastic rubber pad 114 and sealed shell 111 inner wall sliding contact, be convenient for connecting plate 113 and elastic rubber pad 114 slide along sealed shell 111 inner wall, blow pipe 10 passes sealed shell 111, connecting plate 113 and elastic rubber pad 114, during the soot blowing, under spring 112's elastic force effect, elastic rubber pad 114 and boiler outer wall sealing contact, it is sealed effectual, can prevent that the soot from flying out.
The four corners of the bottom of the rack 1 are fixedly connected with electric telescopic rods 14, the bottom ends of the electric telescopic rods 14 are fixedly connected with a base 15, and a control panel 18 is connected with the motor 2 and the electric telescopic rods 14 in a control mode; the end part of the soot blowing pipe 10 is provided with a soot blowing head 12, the end part of the soot blowing head 12 is hemispherical, so that steam can be conveniently blown out from the air holes, the soot blowing head 12 is provided with air holes 13, and the steam is discharged through the air holes 13; the reference circle of the driving gear 5 is smaller than that of the driven gear 8, so that the driven gear 8 can rotate slowly.
The specific working principle is as follows:
when the device is used, the device is connected with an external power supply, the height of the electric telescopic rod 14 is adjusted through the control panel 18 according to the height of an upper inlet hole of a boiler, the electric telescopic rod 14 drives the rack 1 to move, the height of the soot blowing head 12 can be adjusted, the soot blowing head 12 is adjusted to be at the same height as the upper inlet hole of the boiler, the soot blowing head 12 and the soot blowing pipe 10 extend into the boiler, the sealing assembly 11 is in sealing contact with the outer wall of the boiler, the elastic rubber pad 114 is in sealing contact with the outer wall of the boiler under the action of the elastic force of the spring 112, the sealing effect is good, soot can be prevented from flying out, the air inlet pipe 17 is connected with external steam conveying equipment to start soot blowing work, steam enters the box body 161 through the air inlet pipe 17, the drying particles 164 absorb moisture in the steam to dry the steam, the fan blades 162 are driven to rotate when the, pivot 167 drives puddler 165 and rotates, puddler 165 stirs dry granule 164, drying effect to steam is good, steam after the drying is discharged via blast pipe 9, through control panel 18 starter motor 2, motor 2 drives output shaft 4 through reducing gear box 3 after slowing down and rotates, output shaft 4 drives driving gear 5 and rotates together, driving gear 5 drives driven gear 8 through chain 6 and rotates, driven gear 8 drives blast pipe 9 and rotates, blast pipe 9 drives soot blowing pipe 10 and soot blowing head 12 and rotates together, the realization is blown the ash to the comprehensive in the boiler.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a boiler furnace soot blower, includes frame (1), its characterized in that: the drying machine is characterized in that a motor (2) is arranged on the rack (1), the output end of the motor (2) is connected with the input end of the reduction gearbox (3), the output end of the reduction gearbox (3) is connected with an output shaft (4), a driving gear (5) is fixedly connected onto the output shaft (4), the driving gear (5) is connected with a driven gear (8) through a transmission chain (6), a through groove (7) is formed in the top of the rack (1), the chain (6) penetrates through the through groove (7), a drying assembly (16) is fixedly connected to the bottom of the rack (1), an air inlet pipe (17) is connected to the right side of the drying assembly (16), the air inlet pipe (17) penetrates through the right side wall of the rack (1), an exhaust pipe (9) is rotatably connected to the left side of the drying assembly (16), the exhaust pipe (9) penetrates through the, be connected with soot blower pipe (10) on blast pipe (9), soot blower pipe (10) pass frame (1) left side wall, be equipped with seal assembly (11) on soot blower pipe (10), frame (1) right side is equipped with control panel (18).
2. A boiler furnace sootblower as claimed in claim 1, wherein: the drying component (16) comprises a box body (161), wherein two sides of the box body (161) are respectively connected with an air inlet pipe (17) and an exhaust pipe (9), two groups of isolation nets (163) are fixedly connected to the inner wall of the box body (161), drying particles (164) are filled between the two groups of isolation nets (163), a rotating shaft (167) is rotatably connected to the left side of each isolation net (163), the rotating shaft (167) penetrates through the right isolation net (163), a connecting seat (166) is connected to the right end of the rotating shaft (167), fan blades (162) are arranged on the connecting seat (166), a plurality of groups of stirring rods (165) are fixedly connected to the left portion of the rotating shaft (167), and the plurality of groups of stirring rods (165) are located between the two.
3. A boiler furnace sootblower as claimed in claim 1, wherein: seal assembly (11) are including sealed shell (111), sealed shell (111) are cylindric, sealed shell (111) inner wall fixedly connected with multiunit spring (112), spring (112) butt has connecting plate (113), it has elastic rubber pad (114) to bond on connecting plate (113), connecting plate (113) and elastic rubber pad (114) and sealed shell (111) inner wall sliding contact, soot blower (10) pass sealed shell (111), connecting plate (113) and elastic rubber pad (114).
4. A boiler furnace sootblower as claimed in claim 1, wherein: frame (1) bottom four corners department equal fixedly connected with electric telescopic handle (14), electric telescopic handle (14) bottom fixedly connected with base (15).
5. The boiler furnace soot blower of claim 4, wherein: the control panel (18) is in control connection with the motor (2) and the electric telescopic rod (14).
6. A boiler furnace sootblower as claimed in claim 1, wherein: the end part of the soot blowing pipe (10) is provided with a soot blowing head (12), the end part of the soot blowing head (12) is hemispherical, and the soot blowing head (12) is provided with an air hole (13).
7. A boiler furnace sootblower as claimed in claim 1, wherein: the reference circle of the driving gear (5) is smaller than that of the driven gear (8).
8. A soot blowing method of a soot blower of a boiler furnace is characterized by comprising the following steps: when the device is used, the device is communicated with an external power supply, the height of an electric telescopic rod (14) is adjusted through a control panel (18) according to the height of an upper inlet hole of a boiler, the electric telescopic rod (14) drives a rack (1) to move, the height of a soot blowing head (12) can be adjusted, the soot blowing head (12) is adjusted to be at the same height with the upper inlet hole of the boiler, the soot blowing head (12) and a soot blowing pipe (10) extend into the boiler, a sealing assembly (11) is in sealing contact with the outer wall of the boiler, an elastic rubber pad (114) is in sealing contact with the outer wall of the boiler under the action of the elastic force of a spring (112), the sealing effect is good, soot can be prevented from flying out, an air inlet pipe (17) is connected with external steam conveying equipment, soot blowing work is started, steam enters a box body (161) through the air inlet pipe (17), and dry particles, drying the steam, driving the fan blades (162) to rotate when the steam flows, driving the rotating shaft (167) to rotate together by the fan blades (162) through the connecting seat (166), driving the stirring rod (165) to rotate by the rotating shaft (167), stirring the dried particles (164) by the stirring rod (165), the drying to steam is effectual, steam after the drying is discharged via blast pipe (9), through control panel (18) starter motor (2), motor (2) drive output shaft (4) and rotate after reducing gear box (3), output shaft (4) drive driving gear (5) and rotate together, driving gear (5) drive driven gear (8) through chain (6) and rotate, driven gear (8) drive blast pipe (9) rotate, blast pipe (9) drive soot blowing pipe (10) and soot blowing head (12) rotate together, the realization is to the comprehensive soot blowing in the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166912.5A CN111076200B (en) | 2019-11-25 | 2019-11-25 | Soot blower of boiler hearth and soot blowing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166912.5A CN111076200B (en) | 2019-11-25 | 2019-11-25 | Soot blower of boiler hearth and soot blowing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111076200A true CN111076200A (en) | 2020-04-28 |
| CN111076200B CN111076200B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911166912.5A Active CN111076200B (en) | 2019-11-25 | 2019-11-25 | Soot blower of boiler hearth and soot blowing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251263A (en) * | 2021-06-02 | 2021-08-13 | 魏艳丽 | Smart community monitoring equipment based on Internet of things |
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| CN202145103U (en) * | 2011-02-22 | 2012-02-15 | 北京清捷能源环境科技有限公司 | Novel anti-scaling GGH |
| CN204574060U (en) * | 2015-01-27 | 2015-08-19 | 深圳凡元兴科技有限公司 | A kind of boiler soot-blowing blasting pot |
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| CN106940021A (en) * | 2017-05-08 | 2017-07-11 | 江苏方天电力技术有限公司 | A kind of sootblower arrangement |
| CN208312412U (en) * | 2018-04-12 | 2019-01-01 | 吉林省光大节能技术有限责任公司 | Soot blower for boiler hearth |
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| CN211902921U (en) * | 2019-11-25 | 2020-11-10 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Boiler furnace soot blower |
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| CN113251263A (en) * | 2021-06-02 | 2021-08-13 | 魏艳丽 | Smart community monitoring equipment based on Internet of things |
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