CN212887175U - Special tool for adjusting clearance of sealing sheet of air preheater - Google Patents
Special tool for adjusting clearance of sealing sheet of air preheater Download PDFInfo
- Publication number
- CN212887175U CN212887175U CN202021246324.0U CN202021246324U CN212887175U CN 212887175 U CN212887175 U CN 212887175U CN 202021246324 U CN202021246324 U CN 202021246324U CN 212887175 U CN212887175 U CN 212887175U
- Authority
- CN
- China
- Prior art keywords
- supporting rods
- adjusting
- special tool
- adjustment
- sliding groove
- 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.)
- Active
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model discloses a specialized tool for adjustment of air heater gasket clearance, this specialized tool include crossbeam, a plurality of bracing piece and a plurality of adjusting the baffle, the crossbeam level is arranged, a plurality of bracing piece intervals are located the crossbeam bottom surface can be followed the spout adjustment interval of crossbeam bottom surface, a plurality of adjusting the baffle liftable are located a plurality of bracing piece bottoms. This instrument overcomes the defect of traditional gasket installation operation, reduces operation personnel's input quantity, promotes gasket clearance adjustment operating efficiency, improves clearance adjustment's precision, reduces the overhaul of the equipments cost, ensures the overhaul of the equipments quality.
Description
Technical Field
The utility model relates to an overhaul of equipments technical field especially relates to a specialized tool for adjustment of air heater gasket clearance.
Background
Most power plant generator sets are provided with rotary air preheaters for recovering flue gas heat, reducing power generation energy consumption and improving boiler heat exchange performance. In order to reduce the air leakage rate of the rotary air preheater, a certain unit changes an air preheater rotor from 24 bins to 48 bins after technical improvement is completed, so that the air leakage rate of the rotary air preheater is obviously reduced, but the following problems occur;
1. the interval of the heat transfer element compartments close to the central cylinder area of the rotor is small, the radial sealing plate is difficult to install, and the position precision is low;
2. after the rotor bin is increased, the number of the radial sealing pieces is increased, the installation workload of the radial sealing pieces is increased, the maintenance cycle time of the whole equipment is prolonged, and the normal operation of a unit is influenced;
3. when the clearance of each sealing sheet in the bin is adjusted, the sealing sheet needs to be rotated to the bottom of the fan-shaped plate, the reference of the bottom of the fan-shaped plate is taken as a reference, and then the clearance is adjusted according to the standard requirement, so that a large number of operators are invested, and the operation efficiency is low.
Disclosure of Invention
The utility model aims to solve the technical problem that a specialized tool for adjustment of air heater gasket clearance is provided, the defect of traditional gasket installation operation is overcome to this instrument, reduces operation personnel's input quantity, promotes gasket clearance adjustment operating efficiency, improves the precision of clearance adjustment, reduces the overhaul of the equipments cost, ensures the overhaul of the equipments quality.
In order to solve the technical problem, the utility model discloses a specialized tool for adjustment of air heater gasket clearance includes crossbeam, a plurality of bracing piece and a plurality of adjusting stop, the crossbeam level is arranged, a plurality of bracing piece intervals are located the crossbeam bottom surface, a plurality of adjusting stop liftable are located a plurality of bracing piece bottoms.
Further, the bottom surface of the cross beam is provided with a sliding groove, the top ends of the plurality of support rods are located in the sliding groove and slide along the sliding groove, and the plurality of support rods are fixed in position by fixing bolts after the distance of the support rods is adjusted through the sliding groove.
Furthermore, the special tool further comprises a plurality of insertion pipes and locking bolts, wherein the plurality of adjusting baffles are arranged at the bottom ends of the plurality of insertion pipes, the plurality of locking bolts are screwed on the pipe walls of the upper parts of the plurality of insertion pipes, elongated grooves are formed in the pipe walls of the lower parts of the plurality of supporting rods along the axial direction, the plurality of insertion pipes are inserted into the lower parts of the plurality of supporting rods, the locking bolts are positioned in the elongated grooves, and the plurality of adjusting baffles are fixed through the locking bolts after the height positions of the plurality of.
Because the utility model discloses a specialized tool for air heater gasket clearance adjustment has adopted above-mentioned technical scheme, this specialized tool includes crossbeam, a plurality of bracing piece and a plurality of adjusting stop promptly, the crossbeam level is arranged, a plurality of bracing piece intervals are located the crossbeam bottom surface can be followed the spout adjustment interval of crossbeam bottom surface, a plurality of adjusting stop liftable are located a plurality of bracing piece bottoms. This instrument overcomes the defect of traditional gasket installation operation, reduces operation personnel's input quantity, promotes gasket clearance adjustment operating efficiency, improves clearance adjustment's precision, reduces the overhaul of the equipments cost, ensures the overhaul of the equipments quality.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
fig. 1 is the utility model discloses a specialized tool schematic diagram for adjustment of air heater gasket clearance.
Detailed Description
Embodiment is shown in fig. 1, the utility model discloses a specialized tool for adjustment of air heater gasket clearance includes crossbeam 1, a plurality of bracing piece 2 and a plurality of adjusting the baffle 3, 1 level of crossbeam is arranged, 2 intervals of a plurality of bracing pieces are located 1 bottom surface of crossbeam, a plurality of adjusting the baffle 3 liftable are located 2 bottoms of a plurality of bracing pieces.
Preferably, the bottom surface of the cross beam 1 is provided with a sliding groove 11, the top ends of the support rods 2 are positioned in the sliding groove and slide along the sliding groove, and the support rods 2 are fixed in position by fixing bolts after the distance of the sliding groove is adjusted.
Preferably, the special tool further comprises a plurality of insertion pipes 4 and locking bolts 5, the plurality of adjusting baffles 3 are arranged at the bottom ends of the plurality of insertion pipes 4, the plurality of locking bolts 5 are screwed on the pipe walls of the upper parts of the plurality of insertion pipes 4, elongated grooves are formed in the pipe walls of the lower parts of the plurality of support rods 2 along the axial direction, the plurality of insertion pipes 4 are inserted into the lower parts of the plurality of support rods 2, the locking bolts 5 are located in the elongated grooves, and the plurality of adjusting baffles 3 are fixed through the locking bolts 5 after being adjusted in height.
In the process of mounting the sealing plate of the air preheater, the bolt of the old sealing plate is firstly removed, then the sealing plate is replaced, and the bolt is pre-tightened after the new sealing plate is mounted. The cross beam connecting piece of the special tool is installed on the inner shell of the preheater, the cross beam is erected above the air preheater rotor through the connecting piece and is arranged along the radial direction, and then the supporting rod, the adjusting baffle plate and other parts corresponding to the special tool are assembled.
According to the requirement of the maintenance technical standard of the air preheater, the positions of sealing pieces of five heat transfer elements in one bin and the gaps of the sealing pieces are well installed and adjusted, and the air leakage rate of the air preheater is increased in the operation process due to overlarge gaps, so that the operation efficiency of a unit is reduced; rotate a storehouse gasket that finishes clearance adjustment acceptance inspection to a plurality of adjusting the baffle bottom of this specialized tool to the adjusting the baffle bottom is the benchmark, moves the adjacent bracing piece interval of adjustment along the crossbeam through the bracing piece, through locking bolt adjustment adjusting the vertical position of baffle, and ensures that each adjusting the baffle is unanimous with this gasket interval and satisfies the clearance adjustment requirement. And the heights of the rest sealing pieces are adjusted by taking the heights of the plurality of adjusting baffles as a reference, and then the sealing piece mounting bolts are fastened to complete the gap adjustment of all the sealing pieces. Simultaneously, because the inside dimensional deviation of pre-heater equipment is great, the quantity of bracing piece can increase or delete according to on-the-spot gasket in-service use quantity in this specialized tool to satisfy the user demand of all kinds of different size and dimension pre-heater gasket clearance adjustment.
The special tool reduces the input quantity of operators for installing and adjusting the sealing sheet of the air preheater, improves the efficiency of the sealing sheet clearance adjustment operation and the precision of the clearance adjustment, reduces the air leakage rate of the air preheater and ensures the normal operation of the generator set.
Claims (3)
1. The utility model provides a specialized tool for air heater gasket clearance adjustment which characterized in that: the special tool comprises a cross beam, a plurality of supporting rods and a plurality of adjusting baffles, wherein the cross beam is horizontally arranged, the supporting rods are arranged on the bottom surface of the cross beam at intervals, and the adjusting baffles can be arranged at the bottom ends of the supporting rods in a lifting mode.
2. The special tool for air preheater sealing strip clearance adjustment of claim 1, wherein: the bottom surface of the cross beam is provided with a sliding groove, the top ends of the plurality of supporting rods are positioned in the sliding groove and slide along the sliding groove, and the plurality of supporting rods are fixed at positions by fixing bolts after the distance is adjusted by the sliding groove.
3. The special tool for air preheater sealing strip clearance adjustment according to claim 1 or 2, wherein: the special tool further comprises a plurality of insertion pipes and locking bolts, the plurality of adjusting baffles are arranged at the bottom ends of the plurality of insertion pipes, the plurality of locking bolts are screwed on the pipe walls of the upper portions of the plurality of insertion pipes, elongated grooves are formed in the pipe walls of the lower portions of the plurality of supporting rods in the axial direction, the plurality of insertion pipes are inserted into the lower portions of the plurality of supporting rods, the locking bolts are located in the elongated grooves, and the plurality of adjusting baffles are fixed through the locking bolts after the height positions of the plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246324.0U CN212887175U (en) | 2020-06-30 | 2020-06-30 | Special tool for adjusting clearance of sealing sheet of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246324.0U CN212887175U (en) | 2020-06-30 | 2020-06-30 | Special tool for adjusting clearance of sealing sheet of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212887175U true CN212887175U (en) | 2021-04-06 |
Family
ID=75281193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021246324.0U Active CN212887175U (en) | 2020-06-30 | 2020-06-30 | Special tool for adjusting clearance of sealing sheet of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212887175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405117A (en) * | 2021-06-08 | 2021-09-17 | 国家能源集团国源电力有限公司 | Air preheating equipment |
-
2020
- 2020-06-30 CN CN202021246324.0U patent/CN212887175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405117A (en) * | 2021-06-08 | 2021-09-17 | 国家能源集团国源电力有限公司 | Air preheating equipment |
| CN113405117B (en) * | 2021-06-08 | 2022-11-29 | 国家能源集团国源电力有限公司 | Air preheating equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212887175U (en) | Special tool for adjusting clearance of sealing sheet of air preheater | |
| CN107543434B (en) | Removable modularization abrasionproof ash disposal three-dimensional ribbed pipe heat exchanger | |
| CN104949149A (en) | Rotary air preheater dust-blocking-prevention synergy sealing method and system | |
| CN105737182A (en) | Smoke in-depth cooler | |
| CN202267079U (en) | Sealing device for rotary air preheater | |
| CN204739615U (en) | Regenerative air preheater prevents stifled ash sealing system in coordination | |
| CN202139876U (en) | Transverse structure of 1000MW stage set turbo generator set of thermal power plant | |
| CN201561446U (en) | All-schema double three sealing air preheater | |
| CN202253724U (en) | Wind sealing equipment for rotary type air preheater | |
| CN204629511U (en) | The steam type airheater device of garbage burning boiler | |
| CN205535903U (en) | Flue gas deep cooling ware | |
| CN113654370A (en) | Hot flue gas purification and waste heat power generation integrated device | |
| CN110630056A (en) | Compact three-row steam turbine room structure of 660MW coal-fired generator set | |
| CN219624099U (en) | Exhaust-heat boiler flue gas guiding device | |
| CN2495910Y (en) | Mechanism for reducing temp. deviation of over-heating device of boiler reheater | |
| CN206257696U (en) | A kind of Combined air preheater | |
| CN220771131U (en) | Flue gas waste heat utilization device for neopentyl glycol production line | |
| CN203147721U (en) | Waste heat boiler with detachable heating surface tube bundle | |
| CN105953630B (en) | A kind of heating furnace that coil pipe is drawable | |
| CN211781189U (en) | Low-temperature flue gas waste heat recovery device | |
| CN217519898U (en) | Rotary air preheater bin lattice structure convenient to maintain | |
| CN205156347U (en) | Gas -fired hot water boiler air cycle economizer system | |
| CN208701000U (en) | A kind of board-like soybean and rapeseed tempering tower heating module | |
| CN210512679U (en) | Grate is cold quick-witted with low hourglass material comb board | |
| CN204554787U (en) | The external bed for circulating fluidized bed boiler secondary medium temperature overheater improved |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |