CN110953579B - Intelligent detection device for detecting circulating fluidized bed boiler - Google Patents
Intelligent detection device for detecting circulating fluidized bed boiler Download PDFInfo
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- CN110953579B CN110953579B CN201911242761.7A CN201911242761A CN110953579B CN 110953579 B CN110953579 B CN 110953579B CN 201911242761 A CN201911242761 A CN 201911242761A CN 110953579 B CN110953579 B CN 110953579B
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- fixedly connected
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- fluidized bed
- circulating fluidized
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- 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
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
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- 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
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
Abstract
The invention discloses an intelligent detection device for detecting a circulating fluidized bed boiler, which comprises a detection cylinder and a control system, wherein a boiler body is arranged outside the detection cylinder, a furnace cover is arranged at the top of the boiler body, a rotary sleeve is fixedly connected to the outer surface of the detection cylinder, the inner surface of the rotary sleeve is rotatably connected with the inner surface of the boiler body, and a fixed rod is fixedly connected below the inner wall of the detection cylinder. This an intelligent detection device for detecting circulating fluidized bed boiler sets up the bull stick through the both sides at the dead lever, under the continuous impact force of coal breakage, make first semicircle board and second semicircle board overturn downwards, touch switch on the cowl does not contact or transient nature contact with first semicircle board and second semicircle board, cooperation elastic connection spare's resilience effect, when detecting circulating fluidized bed boiler coal breakage, simple structure not only, the cost is lower, and there is very high sensitivity, excellent in detection effect.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to an intelligent detection device for detecting a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler adopts the clean coal combustion technology with the highest industrialization degree. The circulating fluidized bed boiler adopts fluidized combustion, and the main structure comprises a combustion chamber (comprising a dense phase region and a dilute phase region) and a circulating return furnace (comprising a high-temperature gas-solid separator and a return system). The biggest difference with the bubbling fluidized bed combustion technology is that the operation wind speed is high, heterogeneous reaction processes such as combustion and desulfurization are strengthened, the boiler capacity can be enlarged to a large capacity (600MW or above grade) acceptable by the power industry, and the circulating fluidized bed boiler well solves the basic problems of thermology, mechanics, materials and the like and the engineering problems of expansion, abrasion, over temperature and the like, and becomes an advanced technology for energy utilization of difficult-to-burn solid fuels (such as coal gangue, oil shale, municipal refuse, sludge and other wastes).
When the coal breakage detection is carried out in the conventional circulating fluidized bed boiler, a precise detection instrument is mostly adopted for carrying out timing detection, the cost is high, the coal breakage condition can occur at any time, the fluctuation of the running state of the boiler can be caused if the coal breakage fault is not timely treated, even the boiler shutdown accident is caused, and the safety performance is low.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an intelligent detection device for detecting a circulating fluidized bed boiler, which solves the problems that a precise detection instrument is adopted for timing detection, the cost is higher, the coal breakage condition can occur at any time when the coal breakage fault occurs in the conventional circulating fluidized bed boiler, the treatment cannot be timely carried out and the safety performance is low.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an intelligent detection device for detecting a circulating fluidized bed boiler comprises a detection cylinder and a control system, wherein a boiler body is arranged outside the detection cylinder, a furnace cover is arranged at the top of the boiler body, a rotary sleeve is fixedly connected to the outer surface of the detection cylinder, the inner surface of the rotary sleeve is rotatably connected with the inner surface of the boiler body, a fixed rod is fixedly connected below the inner wall of the detection cylinder, rotary rods are rotatably connected to the two sides of the outer surface of the fixed rod, a first semicircular plate and a second semicircular plate are respectively and fixedly connected to one side of each of the two rotary rods from left to right, arc baffles are respectively and fixedly connected to the two sides of the inner wall of the detection cylinder and are positioned right above the first semicircular plate and the second semicircular plate, contact switches are respectively and fixedly connected to the bottoms of the two arc baffles, and the bottoms of the contact switches are respectively contacted with the tops of the first semicircular plate and the second semicircular plate, the bottom of the first semicircular plate is fixedly connected with an elastic connecting piece, and the bottom of the second semicircular plate is fixedly connected with one end of the elastic connecting piece.
Preferably, the upper part of the inner wall of the detection cylinder is fixedly connected with an annular rack, the upper part of the inner wall of the boiler body is fixedly connected with a motor base, and one side of the motor base is fixedly connected with a motor.
Preferably, one end of the output shaft of the motor is fixedly connected with a rotating shaft through a coupler, a gear is fixedly connected below the outer surface of the rotating shaft, and one side of the gear is meshed with one side of the annular rack.
Preferably, the front of the boiler body is communicated with a vent pipe, the visible window is fixedly connected above the front of the boiler body, and the fixing plate is fixedly connected to the bottom of the boiler body.
Preferably, an annular wall is fixedly connected to the lower portion of the inner wall of the boiler body, and the edge of the top of the annular wall is in contact with the edge of the bottom of the detection cylinder.
Preferably, the control system comprises an input module, a control chip, a contact time module, a threshold module, a feedback module, an alarm module and an output module.
Preferably, the output end of the input module is connected with the input end of the control chip, and the output end of the control chip is connected with the input ends of the contact time module and the output module.
Preferably, the output end of the contact time module is connected with the input end of the threshold module, and the output ends of the threshold module are connected with the input ends of the alarm module and the feedback module.
Preferably, the output end of the feedback module is connected with the input end of the control chip, and the output end is connected with the input end of the output module.
(III) advantageous effects
The invention provides an intelligent detection device for detecting a circulating fluidized bed boiler. Compared with the prior art, the method has the following beneficial effects:
(1) the intelligent detection device for detecting the circulating fluidized bed boiler is characterized in that a rotary sleeve is fixedly connected to the outer surface of a detection cylinder, the inner surface of the rotary sleeve is rotatably connected with the inner surface of a boiler body, a fixed rod is fixedly connected to the lower portion of the inner wall of the detection cylinder, rotary rods are rotatably connected to the two sides of the outer surface of the fixed rod, a first semicircular plate and a second semicircular plate are fixedly connected to one side of each of the two rotary rods from left to right respectively, arc-shaped baffles are fixedly connected to the two sides of the inner wall of the detection cylinder and positioned right above the first semicircular plate and the second semicircular plate respectively, contact switches are fixedly connected to the bottoms of the two arc-shaped baffles, the bottoms of the contact switches are contacted with the tops of the first semicircular plate and the second semicircular plate respectively, an elastic connecting piece is fixedly connected to the bottom of the first semicircular plate, the bottom of the second semicircular plate is fixedly connected with one end of the elastic connecting piece, and the rotary rods are arranged on the two sides of the fixed rod, under the continuous impact force of coal breakage for first semicircle board and second semicircle board overturn downwards, and the last contact switch of cowl does not contact or transient nature contact with first semicircle board and second semicircle board, and cooperation elastic connection spare's resilience effect is detecting when circulating fluidized bed boiler cuts off the coal, and not only simple structure, the cost is lower, has very high sensitivity moreover, and detection effect is good.
(2) The intelligent detection device for detecting the circulating fluidized bed boiler is characterized in that an annular rack is fixedly connected above the inner wall of a detection cylinder, a motor base is fixedly connected above the inner wall of a boiler body, a motor is fixedly connected to one side of the motor base, a rotating shaft is fixedly connected to one end of an output shaft of the motor through a coupler, a gear is fixedly connected below the outer surface of the rotating shaft, one side of the gear is meshed with one side of the annular rack, the front side of the boiler body is communicated with a vent pipe, a visible window is fixedly connected above the front side of the boiler body, a fixed plate is fixedly connected to the bottom of the boiler body, an annular wall is fixedly connected below the inner wall of the boiler body, the edge of the top of the annular wall is contacted with the edge of the bottom of the detection cylinder, the rotating shaft is driven to rotate through the motor, the meshed annular rack is driven to rotate by the gear, so that the detection cylinder rotates on the inner wall of the boiler body, the condition of putty appears when avoiding falling the coal in the boiler body.
(3) The intelligent detection device for detecting the circulating fluidized bed boiler is connected with the input end of a control chip at the output end of an input module, the output end of the control chip is connected with the input ends of a contact time module and an output module, the output end of the contact time module is connected with the input end of a threshold value module, the output end of the threshold value module is connected with the input ends of an alarm module and a feedback module, the output end of the feedback module is connected with the input end of the control chip, the output end of the feedback module is connected with the input end of the output module, contact information of a contact switch is sent to the control chip through the input module, the contact time of the contact switch on an arc baffle plate, a first semi-circular plate and a second semi-circular plate is sensed through the contact time module, whether the contact time exceeds a set time value is judged through the threshold value module, an alarm is matched with the alarm module to alarm, and the coal falling condition in the circulating fluidized bed boiler is detected in real time, the intelligent degree is high.
Drawings
FIG. 1 is a perspective view of the external structure of the present invention;
FIG. 2 is a front view of the internal structure of the present invention;
FIG. 3 is a bottom cross-sectional view of the internal structure of the present invention;
FIG. 4 is a perspective view of a portion of the present invention;
FIG. 5 is a top cross-sectional view of a portion of the present invention;
fig. 6 is a perspective view showing an external structure of the motor of the present invention;
FIG. 7 is a functional block diagram of the control system of the present invention.
In the figure, 1-a detection cylinder, 2-a boiler body, 3-a control system, 31-an input module, 32-a control chip, 33-a contact time module, 34-a threshold module, 35-a feedback module, 36-an alarm module, 37-an output module, 4-a furnace cover, 5-a rotating sleeve, 6-a fixed rod, 7-a rotating rod, 8-a first semi-circular plate, 9-a second semi-circular plate, 10-an arc-shaped baffle, 11-a contact switch, 12-an elastic connecting piece, 13-an annular rack, 14-a motor base, 15-a motor, 16-a rotating shaft, 17-a gear, 18-an air pipe, 19-a visible window, 20-a fixed plate and 21-an annular wall.
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. 1-7, an embodiment of the present invention provides a technical solution: an intelligent detection device for detecting a circulating fluidized bed boiler comprises a detection cylinder 1 and a control system 3, wherein the control system 3 comprises an input module 31, a control chip 32, a contact time module 33, a threshold module 34, a feedback module 35, an alarm module 36 and an output module 37, the control chip 32 is an ARM9 series microprocessor, contact information of a contact switch 11 is sent to the control chip 32 through the input module 31, the contact time of the contact switch 11 on an arc baffle 10 and a first semi-circular plate 8 and a second semi-circular plate 9 is sensed through the contact time module 33, whether a set time value is exceeded or not is judged through the threshold module 34, the alarm module 36 is matched for alarming, the coal falling condition inside the circulating fluidized bed boiler is detected in real time, the intelligent degree is high, the output end of the feedback module 35 is connected with the input end of the control chip 32, and the output end of the feedback module is connected with the input end of the output module 37, the output end of the contact time module 33 is connected with the input end of the threshold module 34, the output ends of the threshold module 34 are connected with the input ends of the alarm module 36 and the feedback module 35, the output end of the input module 31 is connected with the input end of the control chip 32, the output end of the control chip 32 is connected with the input ends of the contact time module 33 and the output module 37, the upper part of the inner wall of the detection cylinder 1 is fixedly connected with the annular rack 13, the upper part of the inner wall of the boiler body 2 is fixedly connected with the motor seat 14, the motor seat 14 plays a role of fixedly supporting the motor 15, one side of the motor seat 14 is fixedly connected with the motor 15, the motor 15 is electrically connected with an external power supply, the motor 15 is a three-phase asynchronous motor, the rotating shaft 16 is driven to rotate by the motor 15, the meshed annular rack 13 is driven to rotate by the gear 17, so that the detection cylinder 1 rotates on the inner wall of the boiler body 2, and the condition of material blockage during the coal falling in the boiler body 2 is avoided, one end of an output shaft of a motor 15 is fixedly connected with a rotating shaft 16 through a coupler, the rotating shaft 16 is used for connecting a fixed gear 17, a gear 17 is fixedly connected below the outer surface of the rotating shaft 16, the gear 17 can be meshed with an annular rack 13, one side of the gear 17 is meshed with one side of the annular rack 13, a boiler body 2 is arranged outside a detection cylinder 1, the boiler body 2 is the prior art, an annular wall 21 is fixedly connected below the inner wall of the boiler body 2, the annular wall 21 is annular and distributed on the inner wall of the boiler body 2, the annular wall 21 plays a certain fixed supporting role for the detection cylinder 1, the edge of the top of the annular wall 21 is contacted with the edge of the bottom of the detection cylinder 1, a vent pipe 18 is communicated with the front of the boiler body 2, the vent pipe 18 is used for maintaining air pressure and is communicated with an external pipeline, a visible window 19 is fixedly connected above the front of the boiler body 2, and the visible window 19 is arranged for observing the internal state of the boiler body 2, the bottom of the boiler body 2 is fixedly connected with a fixed plate 20, the fixed plate 20 is arranged to play a role of fixing and supporting the boiler body 2, the top of the boiler body 2 is provided with a furnace cover 4, the outer surface of the detection cylinder 1 is fixedly connected with a rotary sleeve 5, the inner surface of the rotary sleeve 5 is rotatably connected with the inner surface of the boiler body 2, a fixed rod 6 is fixedly connected below the inner wall of the detection cylinder 1, the fixed rod 6 is positioned in the middle position of the inner wall of the detection cylinder 1, two sides of the outer surface of the fixed rod 6 are both rotatably connected with rotary rods 7, one side of each rotary rod 7 is respectively fixedly connected with a first semicircular plate 8 and a second semicircular plate 9 from left to right, the first semicircular plate 8 and the second semicircular plate 9 are symmetrically arranged, arc-shaped baffles 10 are both sides of the inner wall of the detection cylinder 1 and positioned right above the first semicircular plate 8 and the second semicircular plate 9, the bottoms of the two arc-shaped baffles 10 are both fixedly connected with contact switches 11, the contact switch 11 is controlled by a PLC program and is connected with an external host, the bottom of the contact switch 11 is contacted with the tops of the first semicircular plate 8 and the second semicircular plate 9, the bottom of the first semicircular plate 8 is fixedly connected with an elastic connecting piece 12, the elastic connecting piece 12 has elasticity and plays a certain supporting role for the first semicircular plate 8 and the second semicircular plate 9, the bottom of the second semicircular plate 9 is fixedly connected with one end of the elastic connecting piece 12, the rotating rods 7 are arranged on two sides of the fixed rod 6, under the continuous impact force of coal falling, the first semicircular plate 8 and the second semicircular plate 9 are turned downwards, the contact switch 11 on the arc baffle plate 10 is not contacted with the first semicircular plate 8 and the second semicircular plate 9 or is temporarily contacted, the rebounding function of the elastic connecting piece 12 is matched, when the coal breakage of the circulating fluidized bed boiler is detected, the structure is simple, the cost is low, and the sensitivity is high, the detection effect is good, and the content which is not described in detail in the specification belongs to the prior art which is known by the person skilled in the art.
In conclusion, through setting up bull stick 7 in the both sides of dead lever 6, under the continuous impact force of coal breakage for first semicircle board 8 and second semicircle board 9 overturn downwards, and the contact switch 11 on the cowl 10 does not contact or transient nature contact with first semicircle board 8 and second semicircle board 9, cooperates elastic connection 12's resilience effect, when detecting circulating fluidized bed boiler coal breakage, simple structure not only, the cost is lower, has very high sensitivity moreover, and detection effect is good.
When the device is used, firstly, when the coal breakage of the circulating fluidized bed boiler is detected, the impact force of the fallen coal impacts the first semicircular plate 8 and the second semicircular plate 9, so that the first semicircular plate 8 and the second semicircular plate 9 are turned downwards, the first semicircular plate 8 and the second semicircular plate 9 are turned downwards to further drive the rotating rod 7 to rotate downwards on the surface of the fixed rod 6, the elastic connecting piece 12 is further driven to compress, the first semicircular plate 8 and the second semicircular plate 9 are not contacted with the contact switch 11 or are temporarily contacted with the contact switch 11, at the moment, the coal breakage state is realized, the motor 15 is started at the same time, the rotating shaft 16 is further driven to rotate, the gear 17 is further driven to rotate by the rotating shaft 16, the gear 17 rotates to drive the meshed annular rack 13 to rotate, then the detection cylinder 1 is driven to rotate on the inner wall of the boiler body 2, the blockage is avoided, when the contact time of the first semicircular plate 8 and the second semicircular plate 9 with the contact switch 11 is too long, the input module 31 inputs information into the control chip 32, the information enters the contact time module 33 and the threshold module 34 after being analyzed and processed by the control chip 32, and when the time value exceeds a set value, the alarm module 36 gives an alarm, so that all the working principles of the intelligent detection device for detecting the circulating fluidized bed boiler are realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an intellectual detection system device for detecting circulating fluidized bed boiler, is including detecting a section of thick bamboo (1) and control system (3), the outside of detecting a section of thick bamboo (1) is provided with boiler body (2), and the top of boiler body (2) is provided with bell (4), its characterized in that: the outer surface of the detection cylinder (1) is fixedly connected with a rotary sleeve (5), the inner surface of the rotary sleeve (5) is rotatably connected with the inner surface of the boiler body (2), a fixed rod (6) is fixedly connected below the inner wall of the detection cylinder (1), two sides of the outer surface of the fixed rod (6) are rotatably connected with rotary rods (7), one side of each rotary rod (7) is fixedly connected with a first semicircular plate (8) and a second semicircular plate (9) from left to right respectively, two sides of the inner wall of the detection cylinder (1) are positioned right above the first semicircular plate (8) and the second semicircular plate (9) and are fixedly connected with arc baffles (10), the bottoms of the two arc baffles (10) are fixedly connected with contact switches (11), and the bottoms of the contact switches (11) are in contact with the tops of the first semicircular plate (8) and the second semicircular plate (9), the bottom of the first semicircular plate (8) is fixedly connected with an elastic connecting piece (12), and the bottom of the second semicircular plate (9) is fixedly connected with one end of the elastic connecting piece (12);
the control system (3) comprises an input module (31), a control chip (32), a contact time module (33), a threshold module (34), a feedback module (35), an alarm module (36) and an output module (37), wherein the output end of the contact time module (33) is connected with the input end of the threshold module (34), and the output end of the threshold module (34) is connected with the input ends of the alarm module (36) and the feedback module (35).
2. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 1, wherein: the upper portion of the inner wall of the detection barrel (1) is fixedly connected with an annular rack (13), the upper portion of the inner wall of the boiler body (2) is fixedly connected with a motor base (14), and one side of the motor base (14) is fixedly connected with a motor (15).
3. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 2, wherein: one end of an output shaft of the motor (15) is fixedly connected with a rotating shaft (16) through a coupler, a gear (17) is fixedly connected to the lower portion of the outer surface of the rotating shaft (16), and one side of the gear (17) is meshed with one side of the annular rack (13).
4. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 1, wherein: the front side of the boiler body (2) is communicated with a vent pipe (18), a visible window (19) is fixedly connected to the upper side of the front side of the boiler body (2), and a fixing plate (20) is fixedly connected to the bottom of the boiler body (2).
5. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 1, wherein: the lower part of the inner wall of the boiler body (2) is fixedly connected with an annular wall (21), and the edge of the top of the annular wall (21) is contacted with the edge of the bottom of the detection cylinder (1).
6. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 1, wherein: the output end of the input module (31) is connected with the input end of the control chip (32), and the output end of the control chip (32) is connected with the input ends of the contact time module (33) and the output module (37).
7. The intelligent detecting device for detecting the circulating fluidized bed boiler according to claim 1, wherein: the output end of the feedback module (35) is connected with the input end of the control chip (32), and the output end of the feedback module is connected with the input end of the output module (37).
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| CN201911242761.7A CN110953579B (en) | 2019-12-06 | 2019-12-06 | Intelligent detection device for detecting circulating fluidized bed boiler |
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| CN201911242761.7A CN110953579B (en) | 2019-12-06 | 2019-12-06 | Intelligent detection device for detecting circulating fluidized bed boiler |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082853B (en) * | 1958-11-08 | 1960-06-02 | Schuechtermann & Kremer | Device for the automatic control of the outlet or the degree of filling of chutes, spirals or the like. |
| GB900735A (en) * | 1960-08-04 | 1962-07-11 | United Conveyor Corp | Apparatus for feeding pulverulent material |
| CN101614583B (en) * | 2009-04-30 | 2011-06-22 | 上海电力学院 | Plugging material detection early warning device and method based on voice recognition |
| CN103017879A (en) * | 2011-09-27 | 2013-04-03 | 保定市润利节能环保有限公司 | Metering method and device for fuel coal of boiler |
| CN103744118B (en) * | 2013-12-19 | 2016-05-11 | 宁波天龙电子股份有限公司 | A kind of material leaks puts checkout gear |
| CN204241702U (en) * | 2014-10-31 | 2015-04-01 | 杭州杭锅电气科技有限公司 | Circulating Fluidized Bed Boiler is broken coal pick-up unit |
| CN206258597U (en) * | 2016-12-15 | 2017-06-16 | 长沙开元仪器股份有限公司 | A kind of coal flow detection device |
| CN208937107U (en) * | 2018-12-11 | 2019-06-04 | 华电电力科学研究院有限公司 | A kind of monitoring fired power generating unit coal consumption system |
| CN110422590A (en) * | 2019-08-30 | 2019-11-08 | 中冶北方（大连）工程技术有限公司 | The detection of drying grate bulk cargo elephant trunk bulk putty and automatic clearing apparatus |
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