CN100460308C - Rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integrated raising method - Google Patents
Rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integrated raising method Download PDFInfo
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- CN100460308C CN100460308C CNB2006100477459A CN200610047745A CN100460308C CN 100460308 C CN100460308 C CN 100460308C CN B2006100477459 A CNB2006100477459 A CN B2006100477459A CN 200610047745 A CN200610047745 A CN 200610047745A CN 100460308 C CN100460308 C CN 100460308C
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Abstract
The invention relates to a multipoint digit-control lifting method of rubber film sealing gas storage cabinet, wherein it uses the digit integrated control system whose corn is PLC programmable controller, it uses electric coiler and cabinet top lifter to lift the large spherical frame; at the upper post of gas storage cabinet, there are lifting support at same number as posts; the lifting support is formed by post, blocks, radial support, and tangent support; the tangent support is fixed on the top of post; the lower end of radial support is fixed with top platform; one end of steel wire is fixed on the tangent support at wire hole, while another end beside block, stable block and guide wheel is coiled on the electric coiler. The invention can improve efficiency.
Description
Technical field
The integral body that the present invention relates to large-scale rubber membrane sealed type waterless gasholder sphere shell cabinet roof construction promotes, the whole method and apparatus that promotes of the multipoint electric numerical control of large-scale thin shell structure particularly, this method are applicable to that the integral body of sphere cabinet roof construction of the rubber membrane sealed type waterless gasholder of various volumes promotes.
Background technology
Reinforcement along with China environmental protection work; industries such as iron and steel, chemical industry, coking are recycled more waste gas and are paid attention to; large-scale, ultra-large type reclaims gas storage equipment and is widely adopted; the operating technique that accompanies with it also should satisfy the needs of this situation, and the operating technique that development research is large-scale, ultra-large type reclaims gas storage equipment just seems particularly important.
80,000 m in the present prior art
3The sphere shell cabinet top method for improving of the rubber membrane sealed type waterless gasholder that volume is following mainly contains two kinds: (1) adopts multi-point equispaced manual hoist, and manual operation promotes the cabinet top; (2) adopt multi-point equispaced chain hoist, manual operation promotes the cabinet top; Above-mentioned two kinds of methods all are to use for reference Japan, German operating technique, being the lifting that operational power is finished the cabinet roof construction manually.Wherein the mode of first kind of manual hoist+counterweight is applicable to 50,000 m
3～8 ten thousand m
3The gas storage holder of volume, its constructing operation is shaken winch simultaneously by 2～3 people, and is promoting the heavy counterweight of 1～1.5t of suspension centre place suspension, the load when promoting to alleviate manual hoist simultaneously.To need 3 bufferings sphere shell cabinet top could be promoted in place for counterweight in the lifting process, and work progress is more loaded down with trivial details, and construction period needs 2.5 days.Second kind of chain hoist adds the hoisting way of counterweight, is suitable for 20,000 m
3～5 ten thousand m
3The gas storage holder of volume, lifting weight is lighter relatively, adopts the 5t chain hoist to cooperate assembly pulley to constitute tackling system, and every group of chain hoist needs 2～3 people to operate simultaneously, also needs the buffering counterweight simultaneously three times, and labour intensity is very huge, promotes needs in place 3 days.Each volume gas storage holder cabinet roof construction lifting parameter sees the following form in the prior art:
Original gas storage holder promotes construction method can not satisfy the construction requirement of big volume rubber diaphragm-sealed accumulator cabinet, is this field urgent problem so research and develop construction method large-scale, that ultra-large type reclaims gas storage equipment.
Summary of the invention
The purpose of this invention is to provide the digital integrated control technology of a kind of employing, the control electric winch is as driver train, reach the multiple spot numerical control integral lifting method that multiple spot promotes the rubber membrane sealed type air storage cabinet thin shell top synchronously, this method has alleviated labor strength, has reduced operating personal, has shortened lift time; The integrated control technology of numeral is introduced in the lift technique, has solved the homogeneity of large spherical surface thin shell structure synchronism, structure stress in lifting process, the safety in the lifting process, and can adapt to the requirement that various large-scale thin shell structures promote synchronously.
For achieving the above object, the present invention is achieved through the following technical solutions:
The rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integral lifting method, it is characterized in that: this method is that employing PLC Programmable Logic Controller is the digital integrated control system of core, the winch that electrification drives is equipped with cabinet top lift system and realizes that large spherical surface thin shell structure multiple spot promotes synchronously, and this method is by realizing with lower device:
One group of cabinet top support system, this system is arranged on the column top of gas storage holder, the lifting strong point at gas storage holder top when promoting as shell cabinet top;
One group of electric winch, electric winch use special-purpose stand to be fixed on the bottom of the every root post of gas storage holder, push up the mechanical power that promotes as the shell cabinet;
One group is the digital integrated control system of core with the PLC Programmable Logic Controller, realizes that the large spherical surface thin shell structure promotes control synchronously.
One group of lifting connected system of forming with tackle block and steel rope, it connects electric winch and shell cabinet top, by being equipped with multi-form coaster and steel rope, adapts to the thin shell structure of different lifting weights.
Method for improving may further comprise the steps:
(1) the lifting support system on gas storage holder column top according to the same quantity of gas storage holder column quantity relative set, promoting support system is made up of pillar, assembly pulley, radial support and tangential the support, tangential support fixation is in post top portion, the tangential support of the upper end of radial support and column is connected to a fixed, and its lower end and top layer platform fix; Track adjusting wheel is positioned at inboard, tangential support two ends, and the movable pulley of assembly pulley lower end is connected with hanger on the cabinet top margin ring beam by the steel rope load clamp; Hoist rope one end is fixed on the column at the Suo Shengkong place, and the other end is walked around movable pulley, fixed pulley and track adjusting wheel and is wrapped on the electric winch;
(2) fixed rack of an electric winch is set at the suspension column place of every pillar of gas storage holder, a fixed rack is fixed an electric winch;
(3), form the lifting connected system that the cabinet top promotes with many group assembly pulleys, steel rope, load clamp according to the weight that promotes the cabinet top and the load-carrying ability of electric winch;
(4) after the assembling of lifting connected system is finished, integrated control system is inserted, be connected debugging with mechanical system;
(5) utilize integrated control system to start the electric winch shaft down, and under the crawl state, adjust the stressed of each winch and steel rope, use force indicator to survey the stressing conditions of steel rope on each winch simultaneously, adjust the stressed of winch, make it reach stressed even by integrated control system;
(6) after the unit adjustment was finished, integrated control system carries out sphere shell cabinet top under the multi-machine interaction state examination promoted, and hoisting depth is 100mm, the mode of operation at each position of parking checking system, and pinpointing the problems in time to adjust solves;
(7) after examination promotes and finishes, begin the formal cabinet top that promotes, will establish the full-time staff in the lifting process walkaround inspection is carried out at each position of system, pinpointing the problems parking is in time handled, if no problem is in place until the whole lifting in cabinet top.
(8) large-scale shell cabinet top promote in place after, integrated control system is a unit crawl state by the multi-machine interaction state exchange, to the local micro-adjustment of cabinet jacking row in place, reaches cabinet top and the requirement that column integral body is connected and fixed, and finishes whole lifting process.
Described digital integrated control system detects the stressing conditions of each electric winch by the digital force gauge module that is attached thereto, if unbalance stress, then regulate, make the electric winch of the every root post of gas storage holder position stressed evenly by the vector converter governor that links to each other with the electric winch motor.
In this bont, also be provided with safety guard.
1) electric winch is established electromagnetic brake, and establishes spring loaded ratchet, ratchet self-protecting device in addition;
2) integrated control system is established lacuna and overcurrent protection program;
3) establish four groups of (every group two place) elevating stops on the gas holder cabinet top lifting support system, prevent that cabinet from pushing up lifting and transfiniting.
The present invention's beneficial effect compared with prior art is:
The sphere shell cabinet roof construction of prior art promotes, and adopts the mode of manual operation, manual coordination to carry out.The present invention is applied to advanced and mature control technology in the lift technique, is that the control core system organically gathers together with power-actuated winch and PLC Programmable Logic Controller, and details are as follows for its advantage:
1, saves the work-hours that sphere shell cabinet top promotes.
Design by the contriver, according to the weight and the hoisting depth that promote the cabinet top, under the prerequisite that satisfies safety and economy, the electric winch of designing, lift time was controlled in 6 hours, and manual hoist, chain hoist method for improving improve 4～6 times of work efficiency relatively.
2, alleviate workmen's labour intensity, reduce the construction operation personnel.
The integrated control elevator system of multipoint electric is not because driven by power needs manual operation, so alleviated workmen's labour intensity; Every device just 1 people (or 1 people organizes more) walkaround inspection gets final product now, reduces 2～3 times of constructing operation personnel.
3, reduce loaded down with trivial details operation, lifting process is carried out continuously.
For alleviating the weight on men hoisting cabinet top, in manual hoist or chain hoist lifting, add the concrete clump weight of 1～1.5t at suspension centre place, cabinet top, clump weight needs the stroke of reciprocal 3 cabinet heights of roofs the lifting of sphere shell cabinet top could be put in place simultaneously, therefore counterweight to be hung again 2 times, and operation can not be realized promoting continuously.Lift technique of the present invention has saved the operation that hangs counterweight, has also guaranteed to promote the continuity of operation.
4, save the general expense that has enough to meet the need in using.
Equipment and measure material that existing method for improving uses are very many, concrete counterweight especially, and transportation, loading and unloading just take half of cost of transportation, and the present invention has cancelled the concrete counterweight, and therefore along with the increasing of access times, the general expense of saving is remarkable more.
5, have safe and reliable characteristics.
Electric winch is established the two-stage safety guard, i.e. automatic electromagnetic lock and spring loaded ratchet, pawl type self-locking safety guard; Be composed of lacuna and overcurrent protection program in the numeral integrated control system; On cabinet top lifting support system, be provided with four groups of (two-stage) limiting devices, guarantee the safety that promotes.
6, control system is provided with multi-machine interaction, two kinds of operation modes of unit crawl, two kinds of patterns can freely be changed, can satisfy large spherical surface shell cabinet roof construction in lifting process because of discontinuity and local deformation caused asynchronous, realize the micro-adjustment in the lifting process.
7, by changing the quantity of derrick block group middle pulley, be equipped with the steel rope of corresponding load-carrying ability, the integral body that this system can satisfy Different Weight large spherical surface thin shell structure promotes requirement, and its comformability is quite extensive.
8, adopting with the PLC Programmable Logic Controller is the digital integrated control system of core, and its electric current, voltage control precision height are sensitive to the subtle change reflection of parameter in the lifting process, thus guarantee structure in lifting process cohort synchronously.
Description of drawings
Fig. 1 is the lift system fundamental diagram of apparatus of the present invention.
Fig. 2 is the constructional drawing of gas storage holder of the present invention.
Fig. 3 is control principle figure of the present invention.
The specific embodiment
Below in conjunction with 150,000 m of sky iron group
3The whole example that promotes of rubber membrane sealed type gas chamber sphere shell cabinet roof construction is further described, but embodiments of the present invention are not limited thereto.
See Fig. 2, the rubber membrane sealed type waterless gasholder adopts the sealing of neoprene roller shutter, its structure is that cabinet is by steel sphere arch floor 20, cylindrical cross-section side plate 13, the uniform some pillars 14 of radiation, sphere arch top board 15 and ventilation dormer 16 are formed an airtight container, in establish the spherical steel piston of forming by piston plate 17 and piston holder 18 that can move up and down, be provided with T baffle plate 19 between piston holder 18 and the side plate 13, caulking gum film 21 is arranged on the inside and outside both sides of T baffle plate, inner ring is connected between T baffle plate and the piston, the outer ring is connected between side plate and the T baffle plate, makes gas holder become a two sectional type hermetically-sealed construction.
See Fig. 1, lifting support system on gas storage holder column top according to the same quantity of gas storage holder column quantity relative set, see Fig. 1, promote support system by pillar 1, assembly pulley (leading sheave 5, fixed pulley 6, movable pulley 7), radial support 2 with tangentially support 3 and form, pillar 1 top is fixed in tangential support 3, the upper end of radial support 2 is connected to a fixed with tangential support 3, and its lower end and top layer platform 12 fix; Track adjusting wheel 5 is positioned at inboard, tangential support 3 two ends, and the movable pulley 7 of assembly pulley lower end is connected with hanger 4 on the cabinet top margin ring beam by steel cable load clamp 8; Hoisting wirerope 10 1 ends are fixed in the tangential support 3 at 11 places, rope rope hole, and the other end is walked around movable pulley 7, fixed pulley 6 and track adjusting wheel 5 and is wrapped on the electric winch 9.
See Fig. 3, described digital integrated control system detects the stressing conditions of each electric winch by the digital force gauge module that is attached thereto, if unbalance stress, then regulate, make the electric winch of the every root post of gas storage holder position stressed evenly by the vector converter governor that links to each other with the electric winch motor.
Case history:
1 day iron hot rolled plate Co., Ltd 150,000 m
3Rubber membrane sealed type dry gas holder engineering
2 15 ten thousand m
3Rubber membrane sealed type dry gas holder technological parameter:
3, multipoint electric numerical control integral lifting apparatus parameter
Fairleader equipment, be made up of 36 electronic single-drum hoists, the specified load-carrying ability of unit is 2 tons, and the total load-carrying ability of single rope is 72 tons, every winch is formed the lifting connected system by three or three polyspast and d=12mm, 1700MPa level steel rope, and the system improving ability is Q=72 * 6/1.02
6=368.6t, the hoisting speed of every winch is per minute one commentaries on classics, 51 meters of hoisting depths, the total system work-hours approximately needs 5.8 hours.For guaranteeing that 36 motors start simultaneously; adopt advanced PLC-200H programmable controller to control; in the time of 0.02 μ s; can guarantee to move in 36 electrical motors at one time; assurance cabinet roof construction rises at grade or descends; the spacing control fender guard of two-stage is installed at the place on the cabinet top, guarantees the safety of work progress.
4, promote control step:
The concrete control step that promotes is with the concrete steps in the summary of the invention.
5, multipoint electric numerical control CONTROLLED INTEGRAL LIFT TECHNOLOGY and manual hoist, chain hoist lift technique direct expenses are relatively:
Unit: unit
Annotate: transport into Anshan, Liaoning to the She County, Hebei, the transportation unit price is 0.6 yuan/km.t
Claims (2)
1. rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integral lifting method, it is characterized in that: this method is that employing PLC Programmable Logic Controller is the digital integrated control system of core, use electric winch to be equipped with cabinet top lift system and realize that large spherical surface thin shell structure multiple spot promotes synchronously, this method is by realizing with lower device:
One group of cabinet top support system, this system is arranged on the column top of gas storage holder, the lifting strong point at gas storage holder top when promoting as shell cabinet top;
One group of electric winch, electric winch use special-purpose stand to be fixed on the bottom of the every root post of gas storage holder, push up the mechanical power that promotes as the shell cabinet;
One group is the digital integrated control system of core with the PLC Programmable Logic Controller, realizes that the large spherical surface thin shell structure promotes control synchronously;
One group of lifting connected system of forming with tackle block and steel rope, it connects electric winch and shell cabinet top, by being equipped with the coaster and the steel rope of different size, form, adapts to the thin shell structure of different lifting weights;
Method for improving may further comprise the steps:
(1) the lifting support system on gas storage holder column top according to the same quantity of gas storage holder column quantity relative set, promoting support system is made up of column, assembly pulley, radial support and tangential the support, tangential support fixation is in the column top, the upper end of radial support and column upper end are connected and fixed, and its lower end and top layer platform fix; Track adjusting wheel is positioned at inboard, tangential support two ends, and the movable pulley of assembly pulley lower end is connected with hanger on the cabinet top margin ring beam by steel rope, load clamp; Hoist rope one end is fixed on the column at the Suo Shengkong place, and the other end is walked around movable pulley, fixed pulley and track adjusting wheel and is wrapped on the electric winch;
(2) fixed rack of an electric winch is set at the suspension column place of the every root post of gas storage holder, a fixed rack is fixed an electric winch;
(3), form the lifting connected system that the cabinet top promotes with assembly pulley, steel rope, load clamp according to the weight that promotes the cabinet top and the load-carrying ability of suspension centre winch;
(4) after the assembling of lifting connected system is finished, integrated control system is inserted, be connected debugging with mechanical system;
(5) utilize integrated control system to start the electric winch shaft down, and under the crawl state, adjust the stressed of each winch and steel rope, use force indicator to survey the stressing conditions of steel rope on each winch simultaneously, adjust the stressed of winch by integrated control system again, make it reach stressed even;
(6) after the adjustment of unit crawl is finished, integrated control system carries out sphere shell cabinet top under the multi-machine interaction state examination promotes, and hoisting depth is 100mm, the mode of operation at each position of parking checking system, and pinpointing the problems in time to adjust solves;
(7) after examination promotes and finishes, begin the formal cabinet top that promotes, will establish the full-time staff in the lifting process walkaround inspection is carried out at each position of system, pinpointing the problems parking is in time handled, if no problem is in place until the whole lifting in cabinet top;
(8) large-scale shell cabinet top promote in place after, interlock is converted to crawl in the integrated control system, to the local micro-adjustment of cabinet jacking row in place, reaches cabinet top and the requirement that column integral body is connected and fixed, and finishes whole lifting process.
2. rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integral lifting method according to claim 1, it is characterized in that: described digital integrated control system detects the stressing conditions of each electric winch by the digital force gauge module that is attached thereto, if unbalance stress, then regulate, make the electric winch of the every root post of gas storage holder position stressed evenly by the vector converter governor that links to each other with the electric winch motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100477459A CN100460308C (en) | 2006-09-15 | 2006-09-15 | Rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integrated raising method |
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| CNB2006100477459A CN100460308C (en) | 2006-09-15 | 2006-09-15 | Rubber membrane sealed type air storage cabinet thin shell top multiple-point digital control integrated raising method |
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| CN1966388A CN1966388A (en) | 2007-05-23 |
| CN100460308C true CN100460308C (en) | 2009-02-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101603624B (en) * | 2008-06-12 | 2010-09-08 | 中冶东北建设有限公司结构制造安装工程公司 | Integral installation method of top system of gas tank |
| CN102674188A (en) * | 2012-05-25 | 2012-09-19 | 防城港中一重工有限公司 | Process for lifting sealing rubber membranes of Wiggins gasholder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609363A (en) * | 2004-08-11 | 2005-04-27 | 中国机械工业建设总公司 | Building truss integral lifting method and equipment thereof |
| CN1736848A (en) * | 2005-06-27 | 2006-02-22 | 华南理工大学 | Large-scale structure integral hositing device and method |
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2006
- 2006-09-15 CN CNB2006100477459A patent/CN100460308C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609363A (en) * | 2004-08-11 | 2005-04-27 | 中国机械工业建设总公司 | Building truss integral lifting method and equipment thereof |
| CN1736848A (en) * | 2005-06-27 | 2006-02-22 | 华南理工大学 | Large-scale structure integral hositing device and method |
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| CN1966388A (en) | 2007-05-23 |
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Owner name: CHINA THIRD METALLURGICAL GROUP CO., LTD. Free format text: FORMER OWNER: CHINA THIRD METALLURGICAL CONSTRUCTION CORPORATION STRUCTURAL MANUFACTURE AND IN Effective date: 20140710 |
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Effective date of registration: 20140710 Address after: 114039 Anshan province Liaoning City Mountain Road No. 105 building materials Patentee after: CHINA THREE METALLURGICAL GROUP CO., LTD. Address before: 114003 Anshan province Liaoning City Tiedong Oi Kwan Street No. 1 Patentee before: China Third Metallurgical Construction Corporation Structural Manufacture and In |