CN102518593A - Improved large-size centrifugal fan device and mounting and constructing method thereof - Google Patents
Improved large-size centrifugal fan device and mounting and constructing method thereof Download PDFInfo
- Publication number
- CN102518593A CN102518593A CN2011104504460A CN201110450446A CN102518593A CN 102518593 A CN102518593 A CN 102518593A CN 2011104504460 A CN2011104504460 A CN 2011104504460A CN 201110450446 A CN201110450446 A CN 201110450446A CN 102518593 A CN102518593 A CN 102518593A
- Authority
- CN
- China
- Prior art keywords
- motor
- steel base
- bolt
- parallels
- frequency conversion
- 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
Images
Abstract
The invention relates to an improved large-size centrifugal fan device and a mounting and constructing method thereof and belongs to the technical field of building construction. The improved large-size centrifugal fan device comprises a fan, a membrane type coupler, a motor and a frequency conversion power-distribution cabinet, wherein the motor is connected with the frequency conversion power-distribution cabinet through a circuit; the fan is connected with the motor through the membrane type coupler; and a bearing base which is used for fixing a fan bearing is arranged between the fan and the membrane type coupler. Due to the improvement in the invention, a set of frequency conversion power-distribution cabinet is additionally arranged, a coupler, a hydraulic system and a cooling system are omitted, the original fan and core equipment, namely, high-voltage motor, are maintained, and the change is less, so that the energy source is saved, the maintenance cost is lowered, and the economic benefit and the social benefit are obvious. 50% of electric power is saved, so that the cost of electric charge is reduced, the national energy-saving emission-reducing policy is met, and excellent economic and social benefits are obtained. An original oil-pressure coupler is omitted, so that the use of lubricating oil is reduced and the environmental friendliness effect is excellent.
Description
Technical field
The invention belongs to the construction techniques technical field, be specifically related to a kind of construction period is short, engineering drops into the transformation of low and good energy-conserving effect large centrifugal fan device and installation worker method.
Background technique
Centrifugal blower is as a kind of equipment of highly energy-consuming, and the electric power resource of its consumption is shared large percentage in enterprise's each item cost expenditure, many electric power, iron and steel enterprise the power consumption of reduction blower fan as current important process.The power consumption that reduces blower fan is except the efficient that improves blower fan itself, and the regulative mode of reasonably selecting blower fan for use is most important.Current most of blower fan all adopts throttling to regulate, and the flow of blower fan mainly adopts regulating valve or throttle flap to regulate, and the amount of restriction of blower fan is more than 50%.And if the rotating speed of adjusting blower fan both can reduce restriction loss, can guarantee that again blower fan efficiently moves all the time, significantly saving power.Early the time comes into operation and is used for the large centrifugal fan of air inducing dedusting environment friendly device in the steel industry; Generally form by blower fan, Coupler, hydraulic system, cooling system, high-voltage motor; High operation of original device energy consumption and maintaining cost are bigger, can not be fit to the demand that enterprise improves raising the output and cuts down the consumption of energy.
Summary of the invention
To the problems referred to above that exist in the existing technology; Content of the present invention is large centrifugal fan device and the installation worker method that a kind of construction period is short, engineering drops into the transformation of low and good energy-conserving effect; This worker method is applicable to that industry large fan original devices such as iron and steel, electric power, building materials by the Coupler speed governing, transform the Plant reconstruction plant modernization of high-voltage frequency conversion and speed-adjusting as.
The large centrifugal fan device of described a kind of transformation; It is characterized in that comprising blower fan, diaphragm type coupling, motor and frequency conversion electric closet; Described motor is connected through circuit with the frequency conversion electric closet; Described blower fan is connected through the diaphragm type coupling with motor, is equipped with the bearing support that is used for fixing fan bearing between blower fan and the diaphragm type coupling.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that described construction comprises the steps:
1) removes the Coupler in the former large fan device, hydraulic pressure installation and cooling system, elastic coupling flexible coupling and the dismounting original motor concrete foundation in the Coupler, keep motor and blower fan in the original device, and motor is displaced to former hydraulic pressure coupler locations;
2) the Dynamo Steel base is set on the concrete foundation of the described former hydraulic pressure coupler locations of step 1), described Dynamo Steel base size is complementary with motor size, is equipped with one group of bolt hole that is used for construction bolt on the Dynamo Steel base;
3) motor is installed in step 2 in advance through bolt) steel base on; Be placed on the concrete of former hydraulic pressure coupler locations; Find out the exact position of bolt positioning hole on the concrete foundation, the mounting point and the adjustment height of parallels, the absolute altitude of steel base and levelness deviation are met the requirements prescribed;
4) boring of bolt positioning hole: remove steel base, the bolt positioning hole boring of finding out when on concrete foundation, step 3) being pre-installed, dirt in the cleaning eye, and with clear water whole hole is cleaned up, the stone bolt kind is gone in this hole;
5) motor installation in position, centering, levelling
To winch on the concrete foundation by bolted steel base and motor integral body; Steel base bottom is put on step 4) and has been planted the stone bolt in the hand-hole, after stone bolt is tentatively fixing, make stone bolt and bolt positioning hole between the gap even; And it is vertical with the concrete foundation face; Stone bolt screw-in nut suitable for reading, and nut is threaded to the bottom steel plate plane of steel base, range estimation nut and steel plate plane should not have till the gap;
6) respectively the steel base in the step 5) is carried out coarse adjustment and fine setting with parallels and copper sheet; Two groups of parallels of the other placement of each stone bolt between described steel base and concrete foundation basis; Parallels is neatly steadily placed and is compressed; Between steel base and the motor copper sheet is set and finely tunes, the parallels end face should expose base outer rim 10-35mm, and the length that parallels stretches into seating plane should surpass the center of base stone bolt;
7) assembling diaphragm type coupling: between motor and blower fan, load onto the diaphragm type coupling, adjust to make through the diaphragm type coupling of regulating motor (4) one sides and axially and radially wait deviation;
8) steel base stone bolt grouted solid: with clear water the bolt positioning hole is rinsed well, carried out grouted solid after the drying;
9) the fixing and grouting of steel base: parallels and steel base are welded with tack welder, between steel base and concrete foundation space, pour into quick artesian water mud, make motor and concrete foundation be connected to integral body;
10) the frequency conversion electric closet is installed
Carry out frequency conversion electric closet basis earlier, the frequency conversion electric closet is hung on the basis, the frequency conversion electric closet is connected motor cable, and frequency conversion electric closet parameter is provided with completion with crane;
11) motor unit running in
Energized is carried out the running in of motor crawl, confirm to turn to correct after, with motor rotation 2h.Confirm no abnormal after, tighten connecting bolt, connect the diaphragm type coupling between blower fan and motor,, and fixing by bearing support (2).
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that the described parallels of step 3) is a taper liner iron, and specification is 250mm*120mm.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that the described bolt positioning hole aperture 60mm of step 4), hole depth 1400mm.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that at interval one group of groove being set on the described stone bolt of step 4), and total length is 1300-1500mm, and the spacing of adjacent grooves is 150mm.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that the described copper sheet thickness of step 6) is 1mm.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that the described grouting method of step 8) is following: will allocate good epoxy resin slurry and pour in the bolt hole, and after 12 hours, carry out back-grouting.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that described every group of parallels connects through spot welding.
The large centrifugal fan Unit Installation construction of described a kind of transformation is characterized in that the described stone bolt screw thread of step 5) exposes nut 2-5 and buckles, and exposes screw thread and scribbles the grease protective layer.
Through adopting above-mentioned technology, compared with prior art, effective effect of the present invention is following:
1)Compare with original device, of the present invention to make in the process former blower fan motionless, only increases frequency conversion electric closet one cover, motor Formed Steel Base one cover; The blower fan apparatus that Coupler, hydraulic system, cooling system, high-voltage motor are formed is transformed into the high-voltage frequency conversion and speed-adjusting blower fan; Cancelled Coupler, hydraulic system, cooling system through transformation, kept former blower fan nucleus equipment high-voltage motor, changed few; Not only saved the energy and also reduced the cost of maintaining, tangible economic benefit and social benefit have been arranged;
2) construction period of the present invention short, utilize special stone bolt and use epoxy resin and material such as emery mixing preparation according to a certain percentage, can just reach 80% design strength at 12 hours; Significantly reduce the stand-by period; Shortened the construction period, need not the operation that stops production, a blowing-out machine just can reach the transformation purpose; Total operation duration of rebuilding construction process only needs 72h from shutting down start work, and is little to other construction infections;
3) engineering of the present invention drops into low; Need with the crane except that lifting VFC cabinet and motor (when outdoor); The whole erection transformation process only need use lifting gears such as electric wire hoist and jack; The technician and the workmen that drop into are less relatively, have reduced cost to a certain extent, have improved benefit;
4) the energy-conservation effect of the device of reincarnate of the present invention is good, and after the transformation, the high-voltage frequency conversion and speed-adjusting blower fan moves automatically; Not only reduce the maintenance operation personnel, mainly be energy efficient significantly, utilizes the frequency conversion fan speed governing to practice thrift about 50% after the transformation; Reduce electricity charge expenditure, met national energy-saving and emission-reduction policy, obtained good economic and social benefit; And save original Coupler with oil pressure, and having reduced the use of lubricant oil, environment protection effect is good.
Description of drawings
Fig. 1 transforms back large centrifugal fan apparatus structure schematic representation for the present invention;
Fig. 2 is an electric motor mounting structure schematic representation of the present invention;
Fig. 3 is a parallels mounting structure schematic representation of the present invention;
Fig. 4 is existing large centrifugal fan apparatus structure schematic representation.
Among the figure: 1-blower fan, 2-bearing support, 3-diaphragm type coupling, 4-motor, 5-frequency conversion distributor, 6-concrete foundation, 7-bolt positioning hole, 8-stone bolt, 9-parallels, 10-steel base, 11-copper sheet, 12-nut, 13-elastic coupling flexible coupling, 14-Coupler.
Embodiment
Below in conjunction with Figure of description and embodiment the present invention is done further description:
Shown in Fig. 1-3, a kind of large centrifugal fan device of transformation comprises blower fan 1, diaphragm type coupling 3, motor 4 and frequency conversion electric closet 5; Described motor 4 and frequency conversion electric closet 5 are connected through circuit, and described blower fan 1 is connected through diaphragm type coupling 3 with motor 4, is equipped with the bearing support 2 that is used for fixing blower fan 1 bearing between blower fan 1 and the diaphragm type coupling 3; Compare with existing centrifugal blower device as shown in Figure 4; Remove Coupler, hydraulic pressure installation, cooling system, elastic coupling flexible coupling and dismounting original motor concrete foundation in the former large fan device, keep motor 4 and blower fan 1 in the original device, and motor 4 is displaced to former hydraulic pressure coupler locations; And increased the frequency conversion distributor; Connect blower fan through original motor, big or small with air quantity according to blower fan adjusted motor speed automatically by frequency variator; Thereby reach the optimal economic load speed; Connecting bolt between diaphragm type coupling and motor and the steel base belongs to standard piece, and the diaphragm type coupling is generally selected according to the model of blower fan and motor, and common diaphragm type coupling model is the JMII18 type.
The large centrifugal fan Unit Installation construction that the present invention transforms, construction technology process is following: remove original system assembly → materials processing install in advance with buying → steel base and motor → the stone bolt positioning hole holes → → diaphragm type coupling → steel base stone bolt grouted solid → steel base back-grouting → frequency conversion electric closet installation → motor unit running between motor installation in position, centering, levelling → assembling diaphragm type coupling → accurate adjustment blower fan and the motor.
Specifically may further comprise the steps:
1) Coupler 14, the hydraulic pressure installation in the Coupler 14 and the cooling system in the former large fan device of dismounting in the former large fan device of dismounting, elastic coupling flexible coupling 13 and dismounting original motor concrete foundation; Keep motor 4 and blower fan 1 in the original device, and motor 4 is displaced to former hydraulic pressure coupler locations;
2) on the concrete foundation 6 of the described former hydraulic pressure coupler locations of step 1), Dynamo Steel base 10 is set, described Dynamo Steel base 10 sizes are complementary with motor 4 sizes, are equipped with one group of bolt hole that is used for construction bolt on the Dynamo Steel base 10;
3) motor 4 is installed in step 2 in advance through bolt) steel base 10 on; Be placed on the concrete 6 of former hydraulic pressure coupler locations; Find out the exact position of bolt positioning hole 7 on the concrete foundation 6, the mounting point and the adjustment height of parallels 9, the absolute altitude of steel base 10 and levelness deviation are met the requirements prescribed; Connecting bolt specification between motor and steel base is fixed according to aperture, motor basis, and the bolt strength grade gets final product more than or equal to 4.8 grades;
4) boring of bolt positioning hole 7: remove steel base 10, bolt positioning hole 7 borings of finding out when on concrete foundation 6, step 3) being pre-installed, dirt in the cleaning eye, and with clear water whole hole is cleaned up, 8 kinds of stone bolt are gone in this hole; At interval one group of groove is set on the described stone bolt 8, total length is 1300-1500mm, and the spacing of adjacent grooves is 150mm, described bolt positioning hole (7) aperture 60mm, hole depth 1400mm.
5) motor installation in position, centering, levelling: will be winched on the concrete foundation 6 by bolted steel base 10 and motor 4 integral body, steel base 10 bottoms are put on step 4) and have been planted the stone bolt 8 in the hand-hole; After stone bolt 8 preliminary the fixing; Make stone bolt 8 and bolt positioning hole 7 between the gap even, and vertical with 6 of concrete foundations, stone bolt 8 screw-in nuts 12 suitable for reading; And nut 12 is threaded to the bottom steel plate plane of steel base 10; Range estimation nut 12 should not have till the gap with the steel plate plane, and stone bolt 7 screw threads expose nut 12 2-5 to be buckled, and exposes screw thread and scribbles the grease protective layer; Motor centering absolute altitude adopts taper liner iron and two kinds of modes of copper sheet at ordinary times just, the former coarse adjustment; Latter's fine setting, two groups of parallels of the other placement of each stone bolt between base and basis, parallels are placed should be neatly steady; And contact is good; After the motor leveling, every group of parallels should compress, and raps the audition inspection step by step with hand hammer; Then with the gap between the 0.05mm clearance gauge inspection parallels, between parallels and the base surface of contact, it is qualified that the length of filling in both sides at the same section part of parallels comprehensively is no more than 1/3 of parallels length or width.Adopt the copper sheet of 1mm thickness to be encased inside between steel base and the motor, fine setting leeway is arranged so that exchange in the future when motor is adjusted levelness, as shown in Figure 2;
6) use parallels 9 and thickness respectively the steel base in the step 5) 10 to be carried out coarse adjustment and fine setting as the copper sheet 11 of 1mm; Two groups of parallels 9 of each stone bolt 7 other placement between described steel base 10 and concrete foundation 6 bases; Parallels 9 is neatly steadily placed and is compressed; Between steel base 10 and the motor 4 copper sheet 11 is set and finely tunes, parallels 9 end faces should expose base outer rim 10-35mm, and the length that parallels stretches into seating plane should surpass the center of base stone bolt; Described parallels 9 is a taper liner iron, and every group of parallels 9 connects through spot welding, and its specification is 250mm*120mm, and the model of parallels will rationally be selected for use according to the motor base actual size, and calculates the area of rational parallels quantity and every group of parallels according to following formula:
A≥C×
Wherein: A: the area (mm of each group parallels
2); Q
1: equipment etc. are added in the load (N) on the parallels group;
Q
2: the load that on the parallels group, produces when stone bolt is tightened (N);
R: the concrete unit area compressive strength of terrace (MPa), desirable concrete design strength;
N: the group number of parallels group; C: safety coefficient, should get 1.5 ~ 3.
7) assembling diaphragm type coupling: between motor 4 and blower fan 1, load onto diaphragm type coupling 3, adjust to make through the diaphragm type coupling of regulating motor 4 one sides and axially and radially wait deviation;
8) steel base stone bolt grouted solid: bolt positioning hole 7 is rinsed well with clear water; Carry out grouted solid after the drying; Grouting method is poured in the bolt hole for allocating epoxy resin slurry and emery mixture well, after 12 hours, carries out back-grouting; Reach 80% design strength, significantly reduce the stand-by period;
9) the fixing and grouting of steel base: parallels 9 and steel base 10 usefulness tack welders are welded, between steel base 10 and concrete foundation 6 spaces, pour into quick artesian water mud, make motor 4 and concrete foundation 6 be connected to integral body;
10) the frequency conversion electric closet is installed
Carry out frequency conversion electric closet basis earlier, frequency conversion electric closet 5 is hung on the basis, frequency conversion electric closet 5 is connected motor cable, and frequency conversion electric closet parameter is provided with completion with crane;
11) motor unit running in
Energized is carried out the running in of motor crawl, confirm to turn to correct after, with motor rotation 2h, confirms no abnormal after, tighten connecting bolt, connect the diaphragm type coupling 3 between blower fan and motor, and fix by bearing support 2.
Material that the present invention is used and equipment, as shown in table 1 below:
The main plant table of table 1
Motor of the present invention and diaphragm type coupling permissible error are as shown in table 2
Table 2 motor and diaphragm type coupling permissible error
Installation quality measure of the present invention and requirement:
1) to arrive before installing and on-the-spotly carefully make an on-the-spot survey the suitable arrangement and method for construction of back establishment and the journalism trial is examined, examine through after again teams and groups are carried out scheme and confide a technological secret;
2) march into the arena rise heavy industry, manual arc welder and the electrician of construction belongs to special work post, must take appointment with certificate;
3) after the face of the locating basis of Dynamo Steel base centering, levelling, line were confirmed, its centering, levelling should be tested on the measuring position of confirming, and answer marked, should be in original measuring position during reinspection;
4) after the base leveling, the parallels end face should expose the base outer rim; Taper liner iron will expose 10-35mm.The length that the parallels group stretches into seating plane should surpass the center of base stone bolt, and the thickness of parallels is not less than 2mm, between every group of parallels spot welding firm, welding slag is clear clean;
5) stone bolt should be vertical, and nut is complete with packing ring and contact well, and the screw thread not damaged also exposes nut 2 ~ 5 buttons, exposes the protection of screw thread grease.
Trial run requirement of the present invention
1) it is errorless to confirm that each parts of blower fan and motor are in place, and electric wiring is intact with each control gear, after quality technology personnel check, can carry out running in, and unrelated person must not get into the test run zone;
2) observe blower fan, motor running in vibrations and noise,, answer hard stop inspection if any unusually;
3) inspection electric current [strength and motor actual operating mode, with the contrast of blower fan standard performance curve, be within the performance curve scope.
Performance analysis of the present invention
1. economic benefit
1.1 as far as the owner, utilize the frequency conversion fan speed governing to practice thrift about 50% electricity after the transformation, reduced electricity charge expenditure;
1.2 for our company; Utilize special stone bolt and use epoxy resin and material such as emery mixing preparation according to a certain percentage; Can just reach 80% design strength at 12 h, significantly reduce the stand-by period, shorten the construction period; Shortened for 50% time than conventional method, for the owner has also reduced the loss that stops production.
2 social benefits
2.1 because can practice thrift about 50% electricity after transforming, meet national energy-saving and emission-reduction policy, social benefit is good;
2.2 save original Coupler with oil pressure, reduced the use of lubricant oil, environment protection effect is good.
Application implementation example of the present invention
Bear the Hangzhou Steel Company first cover high-voltage frequency-changing supplementary equipment transformation since 2008 so far, accepted the similar fan improvement project of 20 cover scales at Hangzhou Steel Company with a plurality of subsidiary factories of peaceful steel, obtain owner's favorable comment.
The Hangzhou Steel Company converter shed one cover OG blower fan high-voltage frequency-changing supplementary equipment of installing in September, 2008.This blower fan is large-scale air inducing dedusting environment friendly matched with devices equipment, is installed in indoorly, through the hydraulic coupler speed governing, take power consumption oil before transforming, and through the frequency conversion transformation, economize on electricity reaches 60%, moves not occur any fault so far always.Contracted total installation time of this covering device is 72h, and practice of construction has shifted to an earlier date 2h and has been delivered for use, and is the favorable comment that quality or progress have all obtained the owner.
The Hangzhou Steel Company iron works sintering main exhauster high-voltage frequency-changing supplementary equipment that install in May, 2010, this project be totally three cover frequency conversion equipments.This three covers blower fan is installed in outdoor, respectively in the different location.Photo 11.2 is wherein one.This project has shifted to an earlier date 1h from beginning to remove the qualified 72h than owner's regulation of unit running in.Move normal always so far.
Claims (9)
1. the large centrifugal fan device of a transformation; It is characterized in that comprising blower fan (1), diaphragm type coupling (3), motor (4) and frequency conversion electric closet (5); Described motor (4) is connected through circuit with frequency conversion electric closet (5); Described blower fan (1) is connected through diaphragm type coupling (3) with motor (4), is equipped with the bearing support (2) that is used for fixing blower fan (1) bearing between blower fan (1) and the diaphragm type coupling (3).
2. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 1 is characterized in that described construction comprises the steps:
1) Coupler (14), the hydraulic pressure installation in the Coupler (14) and the cooling system in the former large fan device of dismounting, elastic coupling flexible coupling (13) and dismounting original motor concrete foundation; Keep motor (4) and blower fan (1) in the original device, and motor (4) is displaced to former hydraulic pressure coupler locations;
2) on the concrete foundation (6) of the described former hydraulic pressure coupler locations of step 1), Dynamo Steel base (10) is set; Described Dynamo Steel base (10) size is complementary with motor (4) size, is equipped with one group of bolt hole that is used for construction bolt on the Dynamo Steel base (10);
3) motor (4) is installed in step 2 in advance through bolt) steel base (10) on; Be placed on the concrete (6) of former hydraulic pressure coupler locations; Find out the exact position of the last bolt positioning hole (7) of concrete foundation (6), the mounting point and the adjustment height of parallels (9), the absolute altitude of steel base (10) and levelness deviation are met the requirements prescribed;
4) boring of bolt positioning hole (7): remove steel base (10); Bolt positioning hole (7) boring of when concrete foundation (6) is upward pre-installed step 3), finding out; Dirt in the cleaning eye, and with clear water whole hole is cleaned up, stone bolt (8) is planted in this hole;
5) motor installation in position, centering, levelling
To winch on the concrete foundation (6) by bolted steel base (10) and motor (4) integral body; Steel base (10) bottom is put on step 4) and has been planted the stone bolt (8) in the hand-hole; After stone bolt (8) is tentatively fixing; Make stone bolt (8) and bolt positioning hole (7) between the gap even, and vertical with concrete foundation (6) face, stone bolt (8) screw-in nut suitable for reading (12); And nut (12) is threaded to the bottom steel plate plane of steel base (10), range estimation nut (12) should not have till the gap with the steel plate plane;
6) respectively the steel base in the step 5) (10) is carried out coarse adjustment and fine setting with parallels (9) and copper sheet (11); The other two groups of parallels (9) of placing of each stone bolt (7) between described steel base (10) and concrete foundation (6) basis; Parallels (9) is neatly steadily placed and is compressed; Between steel base (10) and the motor (4) copper sheet (11) being set finely tunes; Parallels (9) end face should expose base outer rim 10-35mm, and the length that parallels stretches into seating plane should surpass the center of base stone bolt;
7) assembling diaphragm type coupling: between motor (4) and blower fan (1), load onto diaphragm type coupling (3), adjust to make through the diaphragm type coupling of regulating motor (4) one sides and axially and radially wait deviation;
8) steel base stone bolt grouted solid: with clear water bolt positioning hole (7) is rinsed well, carried out grouted solid after the drying;
9) the fixing and grouting of steel base: parallels (9) and steel base (10) are welded with tack welder, between steel base (10) and concrete foundation (6) space, pour into quick artesian water mud, make motor (4) and concrete foundation (6) be connected to integral body;
10) the frequency conversion electric closet is installed
Carry out frequency conversion electric closet basis earlier, frequency conversion electric closet (5) is hung on the basis, frequency conversion electric closet (5) is connected motor cable, and frequency conversion electric closet parameter is provided with completion with crane;
11) motor unit running in
Energized is carried out the running in of motor crawl, confirm to turn to correct after, with motor rotation 2h, confirms no abnormal after, tighten connecting bolt, connect the diaphragm type coupling (3) between blower fan and motor, and fix by bearing support (2).
3. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that the described parallels of step 3) (9) is a taper liner iron, and specification is 250mm*120mm.
4. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that the described bolt positioning hole of step 4) (7) aperture 60mm, hole depth 1400mm.
5. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2; It is characterized in that the described stone bolt of step 4) (8) upward is provided with one group of groove at interval; Total length is 1300-1500mm, and the spacing of adjacent grooves is 150mm.
6. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that the described copper sheet of step 6) (11) thickness is 1mm.
7. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that the described grouting method of step 8) is following: will allocate good epoxy resin slurry and pour in the bolt hole, and after 12 hours, carry out back-grouting.
8. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that described every group of parallels (9) connects through spot welding.
9. the large centrifugal fan Unit Installation construction of a kind of transformation according to claim 2 is characterized in that the described stone bolt of step 5) (7) screw thread exposes nut (12) 2-5 and buckles, and exposes screw thread and scribbles the grease protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110450446.0A CN102518593B (en) | 2011-12-29 | 2011-12-29 | Improved large-size centrifugal fan device and mounting and constructing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110450446.0A CN102518593B (en) | 2011-12-29 | 2011-12-29 | Improved large-size centrifugal fan device and mounting and constructing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518593A true CN102518593A (en) | 2012-06-27 |
| CN102518593B CN102518593B (en) | 2014-06-25 |
Family
ID=46289625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110450446.0A Active CN102518593B (en) | 2011-12-29 | 2011-12-29 | Improved large-size centrifugal fan device and mounting and constructing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518593B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698145A (en) * | 2013-12-12 | 2014-04-02 | 上海通用金属结构工程有限公司 | Mounting method for large-size construction machinery test equipment |
| CN104989664A (en) * | 2015-07-30 | 2015-10-21 | 沈阳盛纳机械制造有限公司 | A centrifugal fan device |
| CN105756989A (en) * | 2016-02-17 | 2016-07-13 | 柳州市乾阳机电设备有限公司 | Method for reinforcing base of centrifugal fan |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201425032Y (en) * | 2009-03-30 | 2010-03-17 | 南通泰慕士服装有限公司 | Frequency converting induced draft fan |
-
2011
- 2011-12-29 CN CN201110450446.0A patent/CN102518593B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201425032Y (en) * | 2009-03-30 | 2010-03-17 | 南通泰慕士服装有限公司 | Frequency converting induced draft fan |
Non-Patent Citations (2)
| Title |
|---|
| 唐修波: "火力发电厂锅炉风机变频器改造及其自动化控制设计", 《中国优秀硕士学位论文全文数据库》, 15 December 2011 (2011-12-15) * |
| 陈建行，王文森，陈裕华: "唐山宝泰钢铁公司风机高压变频技改纪实", 《变频器世界》, 30 March 2011 (2011-03-30) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698145A (en) * | 2013-12-12 | 2014-04-02 | 上海通用金属结构工程有限公司 | Mounting method for large-size construction machinery test equipment |
| CN103698145B (en) * | 2013-12-12 | 2016-05-18 | 上海通用金属结构工程有限公司 | Heavy construction mechanical test equipment installation method |
| CN104989664A (en) * | 2015-07-30 | 2015-10-21 | 沈阳盛纳机械制造有限公司 | A centrifugal fan device |
| CN105756989A (en) * | 2016-02-17 | 2016-07-13 | 柳州市乾阳机电设备有限公司 | Method for reinforcing base of centrifugal fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518593B (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102580820B (en) | Roller type vertical mill installation method | |
| CN105000462A (en) | Split type hoisting method for 5MW land type wind generating set | |
| CN103816983A (en) | Installation construction method of large coal pulverizer | |
| CN110407097A (en) | The construction method of the novel phase modifier of lifting based on portal frame and Lao Xinge device | |
| CN102518593B (en) | Improved large-size centrifugal fan device and mounting and constructing method thereof | |
| CN101962924A (en) | Mounting method of welded rail | |
| CN102400559A (en) | Steel column correction method in assembly of main body frame steel structure in benzene hydrogenation engineering | |
| CN113084476A (en) | Steam turbine unit installation process | |
| CN102535509A (en) | Construction method of high-flatness equipment foundation and adjusting structure thereof | |
| JP2016507215A (en) | Method and apparatus for removal and replacement of a wound stator core | |
| CN106499676A (en) | Sea water direct air-cooling units water circulating pump installation method | |
| JP2010180022A (en) | Method of setting sole plate, and load monitor | |
| CN104235325B (en) | A kind of installation method of milling train gear housing | |
| CN100383454C (en) | Water-force dynamometer auxiliary adjustable device and method | |
| CN104499728A (en) | Absorbing tower horizontal moving device and construction method thereof | |
| CN104134959B (en) | The installation method of full mould casted middle voltage bus rod | |
| KR100450283B1 (en) | A overhaul method of a water turbine generator | |
| CN103912089B (en) | A kind of construction method of the lifting furred ceiling of auditorium | |
| CN201270383Y (en) | Auxiliary installation apparatus for outdoor switch cabinet electromagnetic operating mechanism | |
| CN111963411B (en) | Quick mounting method for skid-mounted air compressor unit of large air separation device | |
| CN102659082B (en) | Mounting construction method for wet-method acid-making condenser | |
| CN217046355U (en) | Self-balancing adjustable overhauls strutting arrangement | |
| CN204370832U (en) | Absorption tower translating device | |
| CN219548346U (en) | Water turbine spindle dismounting platform | |
| CN213390693U (en) | Prefabricated factory building wallboard structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Improved large-size centrifugal fan device and mounting and constructing method thereof Effective date of registration: 20200519 Granted publication date: 20140625 Pledgee: Hangzhou joint rural commercial bank Limited by Share Ltd three pier sub branch Pledgor: ZHEJIANG GUOLIAN EQUIPMENT ENGINEERING Co.,Ltd. Registration number: Y2020330000246 |