CN113237071A - Automatic withdraw formula guiding device - Google Patents
Automatic withdraw formula guiding device Download PDFInfo
- Publication number
- CN113237071A CN113237071A CN202110544231.9A CN202110544231A CN113237071A CN 113237071 A CN113237071 A CN 113237071A CN 202110544231 A CN202110544231 A CN 202110544231A CN 113237071 A CN113237071 A CN 113237071A
- Authority
- CN
- China
- Prior art keywords
- flow guide
- movable
- channel steel
- automatic evacuation
- strip channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 239000004071 soot Substances 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 17
- 238000000429 assembly Methods 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010926 purge Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 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
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Incineration Of Waste (AREA)
Abstract
An automatic evacuation type flow guide device relates to a flow guide device. The invention aims to solve the problems that the installation position of the existing guide plate has a blowing blind area, so that the blowing of an air preheater is not in place, and the local ash blockage of the air preheater is easily caused. The electric control box is arranged on the automatic evacuation type flow guide device body, and the movable pull rod mechanism is arranged on the output end of the automatic evacuation type flow guide device body; the movable pull rod mechanism comprises a strip channel steel slider, hanging I-shaped steel and a plurality of movable flow guide assemblies in a hanging mode, the strip channel steel slider is connected with the output end of the automatic evacuation type flow guide device body, the hanging I-shaped steel is installed above the strip channel steel slider, one ends of the movable flow guide assemblies are installed on the strip channel steel slider in a rotating mode, the other ends of the movable flow guide assemblies are installed on the hanging I-shaped steel in a rotating mode, and the movable flow guide assemblies are driven by the strip channel steel slider to move in a reciprocating mode to achieve the change of the positions of flow guide plates. The invention is used for soot blowing of the air preheater.
Description
Technical Field
The invention relates to a flow guide device, in particular to an automatic evacuation type flow guide device.
Background
The soot blowing of a rotary air preheater in a thermal power generating unit usually adopts steam blowing, the requirement on the quality of steam during the blowing is extremely high, however, most power plants have the condition of soot blowing with water at the initial stage of the steam blowing due to poor steam source, poor drainage and the like. The soot blowing with water is one of the main reasons for the damage of the heat exchange element of the rotary air preheater, and simultaneously, because the air smoke temperature at the cold end of the air preheater is low, the superheat degree of superheated steam is insufficient, and the damage of the heat exchange element at the cold end is more serious. Aiming at the problem of soot blowing with water in the soot blower starting stage, a guide plate can be adopted to shield the steam in the soot blower starting stage. When the soot blower is started for a period of time, the steam temperature rises along with the increase of the steam flow, the water-containing steam disappears at the moment, and the soot blower completes the normal purging logic again.
At present, the mounting position of guide plate is the nozzle below when the soot blower stops, and the guide plate is fixed, and this kind of mounting means can shelter from sweeping of some (annular region) heat transfer component, can all leave the annular blind area that sweeps on air preheater heat transfer component surface after sweeping at every turn, causes the air preheater to sweep not in place, easily causes the local stifled ash of air preheater. Therefore, the installation position of the existing guide plate has a blowing blind area, so that the air preheater is not blown in place, and the problem of local ash blockage of the air preheater is easily caused.
Disclosure of Invention
The invention aims to solve the problems that the installation position of the existing guide plate has a blowing blind area, so that the blowing of an air preheater is not in place, and the local ash blockage of the air preheater is easily caused. Further provides an automatic evacuation type diversion device.
The technical scheme of the invention is as follows: an automatic evacuation type flow guiding device comprises an automatic evacuation type flow guiding device body 1, an electrical control box 2 and a movable pull rod mechanism 3, wherein the electrical control box 2 is installed on the automatic evacuation type flow guiding device body 1, and the movable pull rod mechanism 3 is installed on the output end of the automatic evacuation type flow guiding device body 1; the movable pull rod mechanism 3 comprises a long-strip channel steel slide block 3-1, a suspension I-shaped steel 3-2, a sliding support block 3-5 and a plurality of movable flow guide assemblies, the long-strip channel steel slide block 3-1 is connected with the output end of the automatic evacuation type flow guide device body 1, the suspension I-shaped steel 3-2 is installed above the long-strip channel steel slide block 3-1, the sliding support block 3-5 is installed below the suspension I-shaped steel and used for supporting the long-strip channel steel slide block 3-1, one ends of the movable flow guide assemblies are rotatably installed on the long-strip channel steel slide block 3-1, the other ends of the movable flow guide assemblies are rotatably installed on the suspension I-shaped steel 3-2, and the movable flow guide assemblies are driven by the long-strip channel steel slide block 3-1 to reciprocate to realize the movement of the position of the flow guide plate.
Compared with the prior art, the invention has the following effects:
the automatic evacuation device adopts full-automatic electrical control to realize the automatic evacuation of the guide plates, not only can prevent the water-carrying purging of the heat exchange element, but also can avoid purging and shielding and remaining purging blind areas after the formal purging of the soot blower.
Drawings
Fig. 1 is a schematic perspective view of the present invention, and fig. 2 is a partially enlarged view of fig. 1. Fig. 3 is a schematic view of a diversion start position or a diversion stop position. Fig. 4 is a schematic view of the evacuation position of the baffle.
Detailed Description
The technical scheme of the invention is not limited to the specific embodiments listed below, and any reasonable combination of the specific embodiments is included.
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 2, and includes an automatic evacuation type deflector body 1, an electrical control box 2, and a movable draw bar mechanism 3, the electrical control box 2 being mounted on the automatic evacuation type deflector body 1, the movable draw bar mechanism 3 being mounted on an output end of the automatic evacuation type deflector body 1; the interior of the automatic evacuation type flow guide device body 1 consists of a reduction gear box, a driving motor, a guide rail, front and rear limit switches, an electric connection wire and the like, and the electric control box 2 consists of a circuit breaker, a contactor, a relay, a wiring terminal row, a button and the like to form an electric control loop; the rear end of the movable pull rod mechanism 3 is connected with a reduction gear box and a driving motor, and the forward and backward logic of the driving motor is completed by the electric control box 2. The movable pull rod mechanism 3 comprises a long-strip channel steel slide block 3-1, hanging I-shaped steel 3-2 and a plurality of movable flow guide assemblies, the long-strip channel steel slide block 3-1 is connected with the output end of the automatic evacuation type flow guide device body 1, the hanging I-shaped steel 3-2 is installed above the long-strip channel steel slide block 3-1, one ends of the movable flow guide assemblies are rotatably installed on the long-strip channel steel slide block 3-1, and the number of the movable flow guide assemblies is consistent with the number of the nozzles of the soot blowers. The other ends of the movable flow guide assemblies are rotatably arranged on the suspension I-shaped steel 3-2, and the movable flow guide assemblies are driven by the reciprocating motion of the long-strip channel steel sliding blocks 3-1 to realize the movement of the positions of the flow guide plates; the movable flow guide assembly comprises a crank 3-3, a flow guide plate 3-4 and a plurality of sliding support blocks 3-5, one end of the crank 3-3 is rotatably installed on a long-strip channel steel sliding block 3-1, the other end of the crank 3-3 is rotatably installed in the middle of the flow guide plate 3-4, one end of the flow guide plate 3-4 is suspended, the other end of the flow guide plate 3-4 is rotatably connected with a suspension I-shaped steel 3-2 through a bolt, the long-strip channel steel sliding block 3-1 is slidably installed on the sliding support blocks 3-5, and the upper ends of the sliding support blocks 3-5 are fixedly connected with the suspension I-shaped steel 3-2.
The movable part of the front section of the invention adopts a pull rod mechanism, and the structure is simple and practical.
The whole set of equipment of the invention adopts full-automatic control, can be controlled remotely and locally, and is convenient to operate and maintain.
The invention perfectly solves the problem that the guide plate can not move, not only can prevent the water-carrying blowing of the heat exchange element, but also can avoid blowing shielding and remaining blowing blind areas after the formal blowing of the soot blower.
The electrical control principle of the present invention is explained with reference to fig. 1 to 4:
when the soot blower is started, the automatic evacuation type flow guide device receives a soot blower starting signal, the automatic evacuation type flow guide device is started, the delay conducting relay starts delay timing, the motor does not rotate, the pull rod mechanism is in a static state (the starting position or the stopping position is shown in figure 3), attention needs to be paid to the fact that the soot blower needs to be provided with the same stopping operation setting at the same time, the flow guide plate is located below a soot blower nozzle at the moment, and the automatic evacuation type flow guide device carries out a steam flow guide process before formal soot blowing.
When the delay time is up, the motor of the automatic evacuation type flow guide device is electrified to start rotating, the reduction gearbox and the pull rod mechanism are driven to move forwards, the flow guide plate is evacuated, and the flow guide plate stops at the front end position (as the position of the evacuation of the flow guide plate in the figure 4) after touching the front limit switch to wait for the next instruction. At which time the sootblower begins normal purge logic.
And after the soot blower finishes blowing, the automatic evacuation type flow guide device receives a soot blowing end signal of the soot blower, a motor of the automatic evacuation type flow guide device reversely rotates to drive the reduction gearbox and the pull rod mechanism to move backwards, the flow guide plate is restored to the initial position, and the flow guide plate stops at the initial position after touching the rear limit switch, so that the whole operation period is finished.
Claims (4)
1. An automatic evacuation formula guiding device which characterized in that: the automatic evacuation type flow guide device comprises an automatic evacuation type flow guide device body (1), an electrical control box (2) and a movable pull rod mechanism (3), wherein the electrical control box (2) is installed on the automatic evacuation type flow guide device body (1), and the movable pull rod mechanism (3) is installed on the output end of the automatic evacuation type flow guide device body (1);
the movable pull rod mechanism (3) comprises a strip channel steel sliding block (3-1), hanging I-shaped steel (3-2) and a plurality of movable flow guide assemblies, the strip channel steel sliding block (3-1) is connected with the output end of the automatic evacuation type flow guide device body (1), the hanging I-shaped steel (3-2) is installed above the strip channel steel sliding block (3-1), one ends of the movable flow guide assemblies are rotatably installed on the strip channel steel sliding block (3-1), the other ends of the movable flow guide assemblies are rotatably installed on the hanging I-shaped steel (3-2), and the movable flow guide assemblies are driven by the strip channel steel sliding block (3-1) to move to the position of a flow guide plate.
2. An automatic evacuation guide device according to claim 1, wherein: the movable flow guide assembly comprises a crank (3-3) and a flow guide plate (3-4), one end of the crank (3-3) is rotatably installed on the long-strip channel steel slide block (3-1), the other end of the crank (3-3) is rotatably installed in the middle of the flow guide plate (3-4), one end of the flow guide plate (3-4) is suspended, and the other end of the flow guide plate (3-4) is rotatably connected with the suspended I-shaped steel (3-2) through a bolt.
3. An automatic evacuation guide device according to claim 2, wherein: one end of each movable flow guide assembly is rotatably arranged on the long channel steel sliding block (3-1) according to the position right below the nozzle of the soot blower.
4. An automatic evacuation guide device according to claim 3, wherein: the movable flow guide assembly further comprises a plurality of sliding supporting blocks (3-5), the long-strip channel steel sliding block (3-1) is slidably mounted on the sliding supporting blocks (3-5), and the upper end faces of the sliding supporting blocks (3-5) are fixedly connected with the suspension I-shaped steel (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110544231.9A CN113237071B (en) | 2021-05-19 | 2021-05-19 | Automatic evacuation formula guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110544231.9A CN113237071B (en) | 2021-05-19 | 2021-05-19 | Automatic evacuation formula guiding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113237071A true CN113237071A (en) | 2021-08-10 |
| CN113237071B CN113237071B (en) | 2024-06-28 |
Family
ID=77137504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110544231.9A Active CN113237071B (en) | 2021-05-19 | 2021-05-19 | Automatic evacuation formula guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113237071B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050230224A1 (en) * | 2004-04-20 | 2005-10-20 | Alstom Technology Ltd | Apparatus for controlling the deposition of feed material on a deposition build-up surface |
| US20060266793A1 (en) * | 2005-05-24 | 2006-11-30 | Caterpillar Inc. | Purging system having workpiece movement device |
| CN2869593Y (en) * | 2006-02-14 | 2007-02-14 | 东方日立锅炉有限公司 | Staged-combustion cyclone coal-powder combustor |
| DE102010003633A1 (en) * | 2010-04-01 | 2011-10-06 | Uft Umwelt- Und Fluid-Technik Dr. H. Brombach Gmbh | Device for purging sediment-loaded effluent, has plate-shaped flow guidance units arranged in tank, forming upwardly guiding flow paths and comprising vertical moving components moveably arranged in tank |
| CN108679963A (en) * | 2018-08-09 | 2018-10-19 | 浙江天禄环境科技有限公司 | A kind of coal using flue gas dries dedusting and feed system |
| CN210035542U (en) * | 2019-05-09 | 2020-02-07 | 南京天承新海电力科技有限公司 | Prevent blockking up boiler soot blower |
| CN215294959U (en) * | 2021-05-19 | 2021-12-24 | 哈尔滨锅炉厂预热器有限责任公司 | Automatic withdraw formula guiding device |
-
2021
- 2021-05-19 CN CN202110544231.9A patent/CN113237071B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050230224A1 (en) * | 2004-04-20 | 2005-10-20 | Alstom Technology Ltd | Apparatus for controlling the deposition of feed material on a deposition build-up surface |
| US20060266793A1 (en) * | 2005-05-24 | 2006-11-30 | Caterpillar Inc. | Purging system having workpiece movement device |
| CN2869593Y (en) * | 2006-02-14 | 2007-02-14 | 东方日立锅炉有限公司 | Staged-combustion cyclone coal-powder combustor |
| DE102010003633A1 (en) * | 2010-04-01 | 2011-10-06 | Uft Umwelt- Und Fluid-Technik Dr. H. Brombach Gmbh | Device for purging sediment-loaded effluent, has plate-shaped flow guidance units arranged in tank, forming upwardly guiding flow paths and comprising vertical moving components moveably arranged in tank |
| CN108679963A (en) * | 2018-08-09 | 2018-10-19 | 浙江天禄环境科技有限公司 | A kind of coal using flue gas dries dedusting and feed system |
| CN210035542U (en) * | 2019-05-09 | 2020-02-07 | 南京天承新海电力科技有限公司 | Prevent blockking up boiler soot blower |
| CN215294959U (en) * | 2021-05-19 | 2021-12-24 | 哈尔滨锅炉厂预热器有限责任公司 | Automatic withdraw formula guiding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113237071B (en) | 2024-06-28 |
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