CN106836949B - Large scale equipment rotary construction method - Google Patents
Large scale equipment rotary construction method Download PDFInfo
- Publication number
- CN106836949B CN106836949B CN201710048960.9A CN201710048960A CN106836949B CN 106836949 B CN106836949 B CN 106836949B CN 201710048960 A CN201710048960 A CN 201710048960A CN 106836949 B CN106836949 B CN 106836949B
- Authority
- CN
- China
- Prior art keywords
- jack
- rotary
- large scale
- rotary part
- scale equipment
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of large scale equipment rotary construction methods, suitable for the case where rotary part is located above fixed component that wait for of equipment, including：Respectively equipment wait on the outside of rotary part with fixed component on the outside of be fixedly installed stiffening ring A and stiffening ring B；Waiting for circumferentially fixed multiple first lifting lugs of setting of rotary part upper edge；Multiple jack are circumferentially placed between stiffening ring A and stiffening ring B, jack, which rises to jack up, waits for that rotary part makes it be detached with fixed component, and more rolling bars are then inserted at separation；Jack falling makes rolling bar support wait for rotary part；The first lifting lug is pulled in one direction simultaneously by flexible rope, realizes the rotation for waiting for rotary part；After rotation to predetermined angle, then rotary part of jack-uping, rolling bar is removed, jack is fallen after rise, and the component that rotation is finished splices with fixed component.This method is a kind of small spacing entirety forward method, and site requirements is low, and tool is simple, is particularly suitable for the large scale equipment that quality is big, angle requirement is stringent.
Description
Technical field
The present invention relates to large scale equipment technical field of construction, especially a kind of large scale equipment rotary construction method.
Background technology
In recent years due to the continuous attention of Environmental index, desulfuration absorbing tower is also required to be transformed ultralow to realize
Discharge, therefore become inexorable trend afterwards in the repowering that the transformation of desulfuration absorbing tower will be.The transformation of desulfuration absorbing tower
It needs original absorption tower outlet being adjusted and is connected to newly-built absorption tower.
Traditional large scale equipment rotation construction, is sling large scale equipment with large-scale hanging device, then by experienced
Rise a heavy industry carry out commander lifting rotation, rotate to designated position, then carry out welding recovery.
There are certain defects for this mode, for example, to occupy a large amount of construction land tenure；Rent large-scale hanging device production
Life largely leases to use；Also need have veteran heavy industry, it is more demanding to construction personnel's technology.
A kind of edge-on rotation of ultra-large type memorial archway disclosed in China Patent Publication No. 101664762 (publication date 2010.3.10)
Mounting process realizes that memorial archway is in place using frame-type hoisting platform and two groups of slideways, but this mode is not suitable for desulfurization absorption
Tower.
In view of this, special propose the present invention.
Invention content
It is that a kind of small spacing integrally turns the object of the present invention is to provide a kind of rotary construction method suitable for large scale equipment
It is not high to site requirements to method, and required equipment is simple, it is at low cost, it is particularly suitable for that quality is big, angle requirement is stringent
Large scale equipment.
Large scale equipment rotary construction method provided by the invention waits for that rotary part is located in fixed component suitable for equipment
The situation of side, including：
Respectively equipment wait on the outside of rotary part with fixed component on the outside of be fixedly installed stiffening ring A and stiffening ring B；It is waiting for
Circumferentially fixed multiple first lifting lugs of setting of rotary part upper edge；
Multiple jack are circumferentially placed between stiffening ring A and stiffening ring B, jack, which rises to jack up, waits for that rotary part makes
It is detached with fixed component, and more rolling bars are then inserted at separation；Jack falling makes rolling bar support wait for rotary part；Pass through
Flexible rope pulls the first lifting lug in one direction simultaneously, realizes the rotation for waiting for rotary part；
After rotation to predetermined angle, then rotary part of jack-uping, rolling bar is removed, jack falls after rise, will rotate
Complete component splices with fixed component.
This rotary construction method, it is only necessary to using small tools such as jack, rolling bar and ropes, can complete, not need
Large-scale Hoisting equipment is not also high to site requirements.Flexible rope is not limited to shape design, it is only necessary to which satisfaction can pull lifting lug
Without being broken, and itself is without elasticity, such as can be the chain above chain block, can also an individual steel
Cord or other forms.The rolling bar is steel pipe or other cylindrical or rotatable bearing structures of cylindrical shape.It is described
The effect of lifting lug is to provide a forced position to be fixed with the large component of lifting lug.
As a preferred embodiment, in above-mentioned large scale equipment rotary construction method, in the lower surface of stiffening ring A and/or add
The also equidistant multiple supporting plates of fixed setting in the upper surface of strong circle B, the support area for increasing rolling bar.Supporting plate setting is adding
When the strong circle upper surfaces B, more precisely, it should be to increase the contact area of rolling bar to reduce the pressure that fixed component is born.
It is highly preferred that in above-mentioned large scale equipment rotary construction method, welded between supporting plate and stiffening ring A or stiffening ring B
A plurality of Two bors d's oeuveres channel steel is reinforced between Two bors d's oeuveres channel steel and supporting plate by welding stud, Two bors d's oeuveres channel steel is far from support as reinforcing muscle
The pading plate between large scale equipment side wall of one section of plate is welded and fixed.
As a kind of preferred or optional technical solution, in above-mentioned large scale equipment rotary construction method, also in fixed part
Circumferentially fixed multiple second lifting lugs of setting of part upper edge, connect the first lifting lug and the second lifting lug, wherein each by a plurality of flexible rope
Bar rope only connects first lifting lug and second lifting lug；When rotation is used, horizontal to pull rope that its stress is made to be led
Introduce and wait for the relatively close realization of two lifting lugs the rotation of rotary part.
As a preferred embodiment, in above-mentioned large scale equipment rotary construction method, it is arranged on fixed component side wall multiple
Guider waits for that rotary shaft position of the rotary part in rotary course does not deviate to limit；The guider includes fixing axle
With the bearing in fixing axle, it should be ensured that when bearing outer ring remains to limit the side for waiting for rotary part after rotary part rises
Wall position.
It is highly preferred that in above-mentioned large scale equipment rotary construction method, the bearing outer ring and wait for rotary part side wall it
Between gap size within the scope of 4~6mm.Ensure after rotary part turns to, the band rotary part and fixed component of large scale equipment
Between mismatch deviation it is smaller, convenient for turn to after welding.
As a preferred embodiment, in above-mentioned large scale equipment rotary construction method, a plurality of rope inverse time in the horizontal direction
Needle pulls clockwise.
As a preferred embodiment, further include the upper portion in fixed component in above-mentioned large scale equipment rotary construction method
Set up separately and set anti-tipping apparatus to prevent from waiting for that rotary part separation rear fixed part part is toppled over, the anti-tipping apparatus is by steel wire rope and falls
Chain forms, and component upper section and ground are connected and fixed by steel wire rope and jack.
As a preferred embodiment, in above-mentioned large scale equipment rotary construction method, when waiting for rotary part and fixed component one
It is rotated again after being cut when body formed.
As a preferred embodiment, in above-mentioned large scale equipment rotary construction method, the large scale equipment is desulfuration absorbing tower.
Compared with prior art, large scale equipment rotary construction method provided by the invention, has the advantages that：
1, construction land tenure is reduced, since the difficult point that previous large scale equipment includes such as desulfuration absorbing tower top plate rotation construction exists
Wide in construction land tenure, this technology overcomes previous lifting operation difficulty big, solves by reasonably analysing scientifically using rotating on the spot
User of service's technology requires high and construction area wide difficult point.
2, the lease for reducing Large-scale Hoisting equipment realizes that maximization of economic benefit, this technology are set by jack, rolling bar etc.
Standby support desulfuration absorbing tower top plate, is substituted Large-scale Hoisting equipment, reduces the expense of Large-scale Hoisting equipment leasing.
3, material property maximization is realized, this technology is by the calculating to a variety of materials, in the feelings for meeting installation exercise
Under condition, is maximized compared to the previous material property that realizes, responded the policy of national energy conservation and emission reduction.
Description of the drawings
Fig. 1 is desulfuration absorbing tower tower top force analysis figure in embodiment 1.
Fig. 2 is the steering schematic diagram of tower top in embodiment 1.
Fig. 3 is guider, arc panel sub-assembly vertical view in embodiment 1.
Fig. 4 is guider, arc panel sub-assembly elevation in embodiment 1.
Fig. 5 is landing stage of scaffold schematic diagram in embodiment 1.
Fig. 6 is guider structural schematic diagram in embodiment 1.
Fig. 7 is jack support node schematic diagram in embodiment 1.
Fig. 8 is jack layout drawing in embodiment 1.
Fig. 9 is rolling bar layout drawing in embodiment 1.
Figure 10 is arc panel welding position schematic diagram in embodiment 1.
Figure 11 is the first lifting lug and the second lifting lug position view in embodiment 1.
Figure 12 is chain block arrangement schematic diagram in embodiment 1.
Figure 13 is jack force analysis figure in embodiment 1.
Figure 14 is 1 rotary construction method flow chart of embodiment.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, With reference to embodiment to this hair
It is bright to be described in further detail.
Embodiment 1
Elm horizontal power plant 1,2 unit minimum discharge improvement project, it is newly-built that No. 1 outlet absorption tower A need to be adjusted connection
Absorption tower, since its weight is big (65 tons), size is big, and place is limited, therefore takes the large scale equipment rotary construction method of the present invention,
It is a kind of small spacing entirety forward method.
Former absorption tower outlet rebuilding construction is ranging from：At built absorption tower A top plates and exhaust pass to expansion joint.
Engineering characteristic：
(1) site operation place is high, and surrounding is unshielded, and construction site is limited.
(2) need adjustment member quality big, angle requirement is stringent.
One, material and equipment
1 main material of table and equipment
Two, preparation of construction
1, tower body horizontal steering device (lifting lug) and anti-offset guider blanking, making.
2, position, the position of circumferential weld and the position etc. of anti-tipping apparatus of the angle, device installation that tower body are horizontally diverted
It is marked, crosses.
3, the needs turned to according to tower body are laid with fire blanket in tower body inside/outside corresponding site, set up scaffold.
The protection of top layer demister is kept apart, paver cotton is expired above demister to be prevented from scalding demister in cutting process
Hinder, scorch, takes root in supporting beam (absolute altitude is+31310) and support plate and set up scaffold, be laid with platform to absolute altitude+32510
Place, scaffold height are 1200mm, are laid with platform and install guardrail additional, and mesa base expires paver cotton flameproof fabric, on the outside of absorption tower
It takes root for setting up the final podium level of scaffold and reach+32510mm on platform and be constructed with meeting peripheral construction personnel, wherein absorption tower
It takes root again from ground within doors after colored steel room roof must being removed without terrace part (colored steel room part) and sets up platform, with full in outside
Foot construction demand.(landing stage of scaffold schematic diagram is referring to Fig. 5).
4 erosion resistant coatings are removed
A bit (specific location regards the practical weld bond location determination in scene) is selected from the outer wall top down 400mm of absorption tower,
Circumferential horizontal measurement is carried out using connection horizontal tube, is chosen a bit every 2 meters along tower circumference, and each point is connected into an annular
Horizontal line respectively bores a 4mm aperture, as the datum mark for removing Anti-corrosion glass scale in tower, with this 4 in four corners of the world four directions
Datum mark is crossed in tower, and removes the former erosion resistant coating of each 400mm wide in two sides at inner wall of tower scarfing, and one is formed on inner wall of tower
Cyclic annular fire-blocking belt, for next step weld seam cutting create favorable conditions, avoid the occurrence of tower wall plate cutting in erosion resistant coating by heat waste
It is bad.
Construction fire prevention prepares in 5 towers
(1) hot work belongs to highly dangerous operation inside tower body, before hot work, it is necessary to be equipped with enough fire-fighting equipments
Fire extinguisher canvas hose is connected in tower by material, carries out fire prevention measure.
(2) fire blanket should be laid with below fire operation face before fire operation inside tower body.
6, the installation of anti-tipping apparatus
(1) anti-tipping apparatus is made of steel wire rope and jack.According to the weight of top tower body and centre-of gravity shift degree, calculate
It determines the fixed point on top tower body and ground, and selects suitable jack and steel wire rope, tower body is connected with jack by steel wire rope
With ground, it is used to stablize the top tower body after separation.It is recommended that at least installing four sets.(in conjunction with actual condition, calculating leads to top
The minimum level power F that tower body is toppled over, when external level of aggregation load is less than F, it may be considered that tilting device in the air.)
(2) the upper bearing outer ring of anti-offset guider should be maintained within the scope of 5mm ± 1mm with tower body outer wall gap,
Ensure that the mismatch deviation after tower body turns between upper lower wall panels is smaller, welding after being turned to convenient for tower body.
(3) tower body position of centre of gravity and tower body topple over the accounting of power
1. being calculated rotor sections weight according to the absorption towers 1# A drawings
Absorption tower top-heavness (G)=top and outlet weight (G1)+insulating sections weight and other construction additional components
(G2)
G=G1+G2=25.8T+39.2T=65T
2. absorbing tower top position of centre of gravity through calculating as shown, at tower body center of gravity about 3920mm, it is less than tower body half
Diameter.(desulfuration absorbing tower top force analysis figure is referring to Fig. 1).
3. the steering of tower body
It is preliminary be set to turn to the outlets the absorption towers 1# A are whole 52 ° of positions by 270 ° of positions and (needed in the process by tower top up time
Needle rotates 142 °) go to arc length about 21.1m.0 °, 270 °, 52 ° of datum lines must be indicated on the inside of tower wall when swivel.(tower body
Schematic diagram is turned to referring to Fig. 2).
Three, rotation construction
1, the connection of tower body rotation portion is dismantled
(1) tower top upper attachment is removed：Remove smoke outlet compensator (closure plate) and related fittings.
(2) landing between upper and lower tower body is disconnected：Cutting rotation portion according to tower body determines the disconnection of platform stair
The ladder landing platform of position, tower body top rotating part is not removed, in the case where not influencing tower body jacking and rotation with tower
Body is horizontally diverted together.
(3) electric lighting cable is removed：The illuminator cable of tower body top rotating part is removed, dismounting component is appropriate
Kind keeping restores convenient for the later stage.
(4) Thermal Meter is removed：The cable of thermal control device is removed, then thermal control environment monitoring instrument is removed simultaneously one by one
It keeps properly.
(5) flue is removed：It will be removed at outlet expansion joint first, while part flue after expansion joint is removed into about 5m, weight
About 15T is measured, (can suitably adjust length according to on-site actual situations) turns in order to avoid influencing follow-up outlet entirety, removes part with
Flat arm lifting to the vacant lot of installation is placed, and is protected and be isolated, and waits for that flue installation being gone back again after tower top swivel.
2, guider and the installation of arc panel sub-assembly
It takes root at stiffening ring at the top of the absorption tower welding guider and arc panel sub-assembly, wherein guider such as Fig. 6
It is shown, it is made of fixing axle and the bearing above fixing axle, tower body inner wall is welded and fixed with angle steel below fixing axle
On, arc panel is equivalent to supporting plate.Sub-assembly be arranged 20, spacing 1.7m, arc panel using 1000 (length) × 100 (width) ×
5 Two bors d's oeuveres channel steels are welded as reinforcing muscle, channel steel in the steel plate of 20mm (thickness), every piece of arc panel (arc panel forward position flange) upper surface
Using [10 channel steels, channel steel increase the connecting plate of one piece of δ=20, connecting plate in addition to stiffening ring A welding also between siding
With channel steel and the equal full weld of siding.(sub-assembly vertical view is referring to Fig. 4, sub-assembly front view referring to Fig. 5) at the same time, in tower wall
Side is evenly arranged 20 guiders of installation, while also functioning to the effect of limit (guider schematic diagram is referring to Fig. 6).
3, tower body circumferential direction horizontal cutting slot is crossed
(1) measurement of lower part stiffening ring B (sub-assembly vertical view 3) levelness.
The levelness to measuring stiffening ring B with horizontal tube is needed before construction, it is ensured that reinforce the levelness of B no more than ±
5mm, if occurring, certain position levelness are undesirable, will carry out cutting adjustment to the stiffening ring for not being inconsistent part and re-start
Welding.
(2) scribing line of cutting line
The anticorrosion insulating layer for the position got angry will be needed to remove inside and outside tower, and anti-corrosion in 300mm in the range that will get angry
Layer polishing is clean, is then marked cutting position in inner wall of tower side with horizontal tube, and a point is marked per 1m, is then linked to be one successively
Circle, as tower body cut tag line and are cut along this line.
4, hydraulic jack jacks stress
From absorption tower, stiffening ring B, which is taken root, sets up 10 20 tons of hydraulic jacks, and at the top of hydraulic jack and the institute of bottom
500 × 500 × 20mm studs are welded at corresponding stiffening ring, then make hydraulic jack jacking band energetically.(hydraulic jack topmast
Support node schematic diagram is shown in that Fig. 7, hydraulic jack layout drawing are shown in Fig. 8).
5, the circumferential horizontal mouth cutting of tower wall plate
The cutting of tower wall plate circumferential weld is carried out at the same time using 4 people, everyone cuts being separated by 90 degree of positions, and 4 people are according to same
Direction is cut, and to prevent welding slag from falling into tower, is cut by the way of being cut to outside tower out of tower, tower upper wall groove uses
45 degree of single side, tower lower wall does not cut groove, has cut and has needed weld bond polishing totally, the personnel that each cut in cutting process will pacify
Dress row special messenger is responsible for carrying out fire prevention protection.
6, hydraulic jack jacks top tower body
(1) force analysis of hydraulic jack
Tower top is uniformly jacked up with hydraulic jack more than 60mm and force analysis is carried out according to hydraulic pressure thousand to hydraulic jack
Jin top layout drawing (Fig. 8) carries out Force Calculation to each jack, and each jack stress is shown in jack force analysis Figure 13.
(2) selection of jack
Stiffening ring A, B thickness is that 30mm materials are Q235B, looks into Code for design of steel structures GB50017-2003 and obtains to cut and answers
Power (σ)=120MPa selects the hydraulic jack of QYL 20 according to hydraulic jack JB2104-91.
(3) falling of rolling bar and jack is added
Top plate installs 3 rolling bars after being detached with siding between every piece of arc panel and siding stiffening ring, slowly falls after rise very heavy
Top makes arc panel be compacted see rolling bar layout drawing 9 with rolling bar.
1. the accounting carried out to arc panel sub-assembly according to arc panel welding position figure (Figure 10).
A. it is 22.5t by the way that arc panel sub-assembly maximum weighted is calculated, Q235 is found according to Steel Structural Design handbook
Steel resistance to compression and bending strength design value are 215MPA, since arc panel sub-assembly is composed of 3 groups of No. 10 Two bors d's oeuveres channel steels, institute
With area of section for 6 × 12.73cm2Then maximum resistance to compression pressure is P=N/S=225 × 103N/6×1273mm2=30mpa, and
Bending strength is 215mpa, so No. ten channel steels are eligible.
B. weld strength calculates
Single supporting point maximum capacity：GMAX=225 × 103N
Weld seam Q235B shearing resistance proof strengths：(σ)=160MPa
Then：σ=GMAX/S≤〔σ〕
S≥GMAX/ (σ)=225 × 103N/160MPa=1406mm2
Setting 1 supporting member by each supporting point, (for supporting member as main stress part, if 1 stud, stud is vertically effectively long
Degree is 150).
Then：The maximum load capacity of each supporting point is FMAX=GMAX=225 × 103N
Weld bead height：H=1/2* δ=1/2*20mm=10mm (two-sided)
Then：Fusion length L1=S1/H=140.6mm
Conclusion：Actual welds length 150mm is more than 140.6mm, and GMAXFor maximum top lift so supporting point is safety
's.
It is 400mm that stiffening ring A and channel steel, channel steel and arc panel fusion length with adjustment, which are 368mm actual welds length,
The bottoms the stiffening ring B effective fusion length L ' of original gusset=138mm ＜ gusset physical length 200mm, therefore stiffening ring
Bottom gusset is also safe.
2. rolling bar is arranged
3 rolling bars are installed between every piece of arc panel and siding stiffening ring, rolling bar uses Φ after a. top plate is detached with siding
The round steel of 36 × 120mm, specific rolling bar arrangement are shown in Fig. 9.
B. the stress of rolling bar
Totally 60, rolling bar, if the single rolling bar stress of each arc panel sub-assembly
Then maximum capacity：N2=MMAX=22.5t
Shear stress suffered by rolling bar：N2/S=22.5 × 103kg/36×120mm2=52map
Because of a diameter of 36mm of rolling bar, allowable stress is (σ)=205mpa, (σ) ＞ P, and rolling bar meets intensity requirement；
Since rolling bar is static, so shear stress suffered by the stiffening ring B of bottom is 52mpa
Because stiffening ring B thickness is 30mm, (σ)=120mpa, (σ) ＞ P, armor plate strength meets the requirements.
C. the selection of jack
Due to the friction coefficient fx=0.15 between Q235B materials
F (frictional force)=N2*fx=22.5 × 1000 × 9.8 × 0.15=33750N
So tower top can be rotated when horizontal pull is more than 3.375t, therefore chooses 5t jacks and rotate tower top.
D. arc panel maximum distortion
If rolling bar contacts uneven with arc panel sub-assembly, only a rolling bar is contacted with arc panel sub-assembly：
Ymax=PL3/ (48EI)=0.129mm
YmaxFor maximum defluxion (mm) in girder span
P is the sum of each load standard value (N) .P=GMAX=225 × 102KG
E is the elasticity modulus of steel, for engineering structural steel E=206000N/mm2.
I is the section moments of inertia of steel, and the inertia section square of arc panel is 1.3*107mm4
L is the maximum spacing of stud, L=500mm
Arc panel amount of deflection Ymax=225000*5003/(48*206000*1.3*107)=0.186mm
The maximum allowable deformation deflection of arc panel amount of deflection is YMAX=L/400=500/400=1.25mm>0.186mm
It can be seen that steel plate deformed is minimum, and stiffening ring B meets and accepts intensity, does not influence to turn operation.
3. pulling chain block that top tower body integral level is made to rotate
On absorption tower, ontology and tower top siding position while welding weld lifting lug, and 4 are welded on the downside of absorption tower ontology siding, that is, weld seam
A second lifting lug, the second 90 degree of lifting lug location interval (4 lifting lugs are centrosymmetric, it is two neighboring between angle to center be
90 °), 18 the first lifting lugs are welded in tower top siding, that is, weld seam upside, are evenly arranged, lifting lug interval about 3m uses 5T chain blocks
(uniformly distributed 4) horizontal (clockwise) in the same direction starts rotation tower top, in tower body steering procedure roller with tower body turn into
Row rolls, and needs that new roller is replenished in time in steering procedure, while paying attention to the timely adjustment in roller direction in turning to progress,
Roller, which should be directed at tower, feels at ease and puts, and often turns to traveling 1000mm and once adjusted.It to seek unification and be commanded in steering procedure,
Ensure that tower body steering procedure is steady, whether smooth close inspection cutting position while welding has obstacle, one it is found that stop operation immediately,
It carries out hidden danger to eliminate until completing swivel, swivel, which is taken, works continuously, it is desirable that it is in place must to complete swivel within a working day.
(using 4 chain blocks) arranges hydraulic jack according to the method described above to be jacked up tower top and withdraws from rolling bar, slowly falls hydraulic pressure after rise
Jack makes weld gap meet counterpart (lifting lug position view is shown in that Figure 11, chain block arrangement schematic diagram are shown in Figure 12).
4. absorption tower group is to installing and welding
Both sides are by 45 ° of cuts of weld grinding above and below inner wall of tower after tower body turns, using single-side welding double-side forming
Technique, tower body outside patch ceramic substrate are welded, must be penetrated with tower body in welding process.Weld seam is carried out after the completion of welding
100% ray detection.
This engineering method is lifted to large scale equipment over the years, on the basis of the mounting means such as rotation are continuously improved, is developed
A kind of new rotary construction method.With the engineering method, realization rotates on the spot, reduces construction land tenure, not have construction site
Engineering provide effective construction method.This construction method is used in the horizontal ultralow improvement project of coal electricity desulfurization of the electric elm of Shaanxi China,
Reduce construction land tenure.Construction overall process is in safe and stable, quick, good controllable state.Quality project, no peace
Full production accident occurs, and has obtained the favorable comment of each side.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
It is bright to be merely used to help understand the core idea of the present invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection domain of the claims in the present invention.
Claims (9)
1. a kind of large scale equipment rotary construction method waits for the case where rotary part is located above fixed component suitable for equipment,
It is characterised in that it includes：
Respectively equipment wait on the outside of rotary part with fixed component on the outside of be fixedly installed stiffening ring A and stiffening ring B；It is waiting rotating
Circumferentially fixed multiple first lifting lugs of setting of component upper edge；
Circumferentially place multiple jack between stiffening ring A and stiffening ring B, jack rise jack up wait for rotary part make its with
Fixed component detaches, and more rolling bars are then inserted at separation；Jack falling makes rolling bar support wait for rotary part；Pass through flexibility
Rope pulls the first lifting lug in one direction simultaneously, realizes the rotation for waiting for rotary part；
After rotation to predetermined angle, then rotary part of jack-uping, rolling bar is removed, jack is fallen after rise, and rotation is finished
Component splices with fixed component；
In the also equidistant multiple supporting plates of fixed setting in the lower surface of stiffening ring A or the upper surface of stiffening ring B, for increasing rolling bar
Support area.
2. large scale equipment rotary construction method according to claim 1, which is characterized in that supporting plate and stiffening ring A add
A plurality of Two bors d's oeuveres channel steel is welded between strong circle B as reinforcing muscle, is reinforced between Two bors d's oeuveres channel steel and supporting plate by welding stud, Two bors d's oeuveres
One section far from supporting plate of channel steel pading plate between large scale equipment side wall is welded and fixed.
3. large scale equipment rotary construction method according to claim 1, which is characterized in that also in fixed component circumferentially
Multiple second lifting lugs are fixedly installed, a plurality of flexible rope is connected into the first lifting lug and the second lifting lug, each of which rope only connect
Connect first lifting lug and second lifting lug；When rotation is used, horizontal that rope is pulled to make its stress by traction in turn by two
A lifting lug is relatively close to realize the rotation for waiting for rotary part.
4. large scale equipment rotary construction method according to claim 1, which is characterized in that be arranged on fixed component side wall
Multiple guiders wait for that rotary shaft position of the rotary part in rotary course does not deviate to limit；The guider includes solid
Dead axle and the bearing in fixing axle, it should be ensured that when after rotary part rises bearing outer ring remain to limit wait for rotary part
Sidewall locations.
5. large scale equipment rotary construction method according to claim 4, which is characterized in that the bearing outer ring with wait rotating
Gap size is within the scope of 4 ~ 6mm between the side wall of component.
6. large scale equipment rotary construction method according to claim 1, which is characterized in that a plurality of rope is in the horizontal direction
It pulls counterclockwise or clockwise.
7. large scale equipment rotary construction method according to claim 1, which is characterized in that further include in the upper of fixed component
Side part setting anti-tipping apparatus is to prevent from waiting for that rotary part separation rear fixed part part is toppled over, and the anti-tipping apparatus is by steel wire rope
It is formed with jack, component upper section and ground is connected and fixed by steel wire rope and jack.
8. large scale equipment rotary construction method according to claim 1, which is characterized in that when waiting for rotary part and fixed part
Part rotates again after being cut when being integrally formed.
9. large scale equipment rotary construction method according to claim 1, which is characterized in that the large scale equipment is inhaled for desulfurization
Receive tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048960.9A CN106836949B (en) | 2017-01-23 | 2017-01-23 | Large scale equipment rotary construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048960.9A CN106836949B (en) | 2017-01-23 | 2017-01-23 | Large scale equipment rotary construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106836949A CN106836949A (en) | 2017-06-13 |
| CN106836949B true CN106836949B (en) | 2018-10-09 |
Family
ID=59120983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710048960.9A Active CN106836949B (en) | 2017-01-23 | 2017-01-23 | Large scale equipment rotary construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836949B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502774B (en) * | 2018-06-06 | 2024-01-23 | 中国能源建设集团广东火电工程有限公司 | Tower top steering structure and steering method of absorption tower |
| CN112926129B (en) * | 2021-04-12 | 2022-06-03 | 交通运输部天津水运工程科学研究所 | Optimized design method for wind-resistant ring of steel storage tank applied to port petrochemical steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316010A (en) * | 1970-06-30 | 1973-05-09 | Mitsubishi Heavy Ind Ltd | Method of contructing elongate upright structures |
| CN1718959A (en) * | 2005-06-09 | 2006-01-11 | 大连久鼎特种建筑工程有限公司 | Building autocathonous rotating method |
| CN101664762A (en) * | 2009-09-11 | 2010-03-10 | 上海同济宝冶建设机器人有限公司 | Ultra-large type memorial archway side-standing rotating installation technology |
| CN204139647U (en) * | 2014-08-08 | 2015-02-04 | 中国矿业大学 | A kind of whole building whirligig |
| CN105569374A (en) * | 2015-12-28 | 2016-05-11 | 郑州思辩科技有限公司 | Near-remote distance comprehensive transfer placing system for building |
| CN106731517A (en) * | 2016-12-22 | 2017-05-31 | 华润电力（菏泽）有限公司 | A kind of cylinder tower cutting jacking turns to technique |
-
2017
- 2017-01-23 CN CN201710048960.9A patent/CN106836949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316010A (en) * | 1970-06-30 | 1973-05-09 | Mitsubishi Heavy Ind Ltd | Method of contructing elongate upright structures |
| CN1718959A (en) * | 2005-06-09 | 2006-01-11 | 大连久鼎特种建筑工程有限公司 | Building autocathonous rotating method |
| CN101664762A (en) * | 2009-09-11 | 2010-03-10 | 上海同济宝冶建设机器人有限公司 | Ultra-large type memorial archway side-standing rotating installation technology |
| CN204139647U (en) * | 2014-08-08 | 2015-02-04 | 中国矿业大学 | A kind of whole building whirligig |
| CN105569374A (en) * | 2015-12-28 | 2016-05-11 | 郑州思辩科技有限公司 | Near-remote distance comprehensive transfer placing system for building |
| CN106731517A (en) * | 2016-12-22 | 2017-05-31 | 华润电力（菏泽）有限公司 | A kind of cylinder tower cutting jacking turns to technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106836949A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106848938B (en) | Cable testing bridge hangs installation method under a kind of High Altitude Platform | |
| CN107100309B (en) | A kind of construction method for the large-scale multi-angular cantilever frame of integral hoisting | |
| CN205558304U (en) | Hoist and mount system of large -scale steel gallery truss | |
| CN207844890U (en) | A kind of hoisting fixture for building curtain wall | |
| CN103603504A (en) | Method of hoisting super high-rise building electrochemical large-diameter rises along with progress of main structure | |
| CN106836949B (en) | Large scale equipment rotary construction method | |
| CN205501837U (en) | Steel case roof beam becomes bridge welding simple platform | |
| CN104831939A (en) | Bolt ball welding ball mixed node large span cantilever grid structure construction method | |
| CN104047433B (en) | Installation method of section steel beam in steel structure engineering | |
| CN203654702U (en) | Operating platform for construction of reinforced concrete chimney | |
| CN103410305B (en) | Boiler maintenance ash mouth support platform and building method thereof | |
| CN105888227B (en) | Superelevation is tubaeform steel structure exterior finish operation platform and its building method | |
| CN205502551U (en) | Platform is suspended in midair in high altitude large -span vestibule construction | |
| CN103114754A (en) | Alternative hoisting method for conjoined coal bunker top truss girder pre-placing | |
| CN102864915A (en) | Construction method for venue large space double-helix air pipes | |
| CN203947756U (en) | Exterior wall protective frame | |
| CN109653484B (en) | Roofing superelevation faces external hanging flower basket mounting structure of empty curtain engineering | |
| CN207878907U (en) | Elevator shaft operating platform | |
| CN102733644B (en) | Super-altitude roof super-long antenna hoisting construction method and system | |
| CN206174438U (en) | Prevent construction platform that inclines | |
| CN204402001U (en) | For the mobile operating platform system that structure for steel structure roof inner slab is installed | |
| CN202577927U (en) | Suspended basket for assembling honeycomb grid column structural steel framework | |
| CN209389606U (en) | A kind of high-temp liquid pipe and cable testing bridge isolating and protecting system | |
| CN206203820U (en) | A kind of thermal power plant boiler burner hearth lift maintaining platform | |
| CN113322820A (en) | Construction method and assembly method for steel cross beam of cable-stayed bridge cable tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100024 Xili, Chaoyang District, Beijing Applicant after: China Energy Construction Group Beijing Electric Power Construction Co., Ltd. Address before: 100024 Xili, Chaoyang District, Beijing Applicant before: CEEC BEIJING ELECTRIC POWER CONSTRUCTION COMPANY |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |