CN103016412A - Installation method for embedded base plate of axial flow compressor - Google Patents
Installation method for embedded base plate of axial flow compressor Download PDFInfo
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- CN103016412A CN103016412A CN2012105756285A CN201210575628A CN103016412A CN 103016412 A CN103016412 A CN 103016412A CN 2012105756285 A CN2012105756285 A CN 2012105756285A CN 201210575628 A CN201210575628 A CN 201210575628A CN 103016412 A CN103016412 A CN 103016412A
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- base plate
- backing plate
- axial flow
- flow compressor
- installation method
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Abstract
The invention relates to an installation method for an embedded base plate of an axial flow compressor. The conventional large-sized axial flow compressor has the disadvantages of carrying of a large quantity of embedded base plates, large masses of the base plates, complex base plate leveling procedure and low efficiency. The method comprises the following steps of: welding a plurality of nuts on the side wall of the base plate through point welding, screwing bolts into the nuts, and leveling the base plate by adjusting the positions of the bolts; performing single-stage grouting on an aligned base plate; and maintaining the base plate for 2-3 days, unscrewing the bolts, bearing the weight of the base plate completely through the grouting amount, and eliminating hard point contact, wherein the quantity of the nuts welded on the side wall of the base plate is three (in the form of a regular triangle) or four (in the form of a square). Due to the adoption of the method, the installation period of the embedded base plate of the axial flow compressor can be shortened effectively, the levelness of the base plate can be adjusted within 0.1-0.2 millimeters rapidly under the condition of sufficiently fine processing of the surface of the base plate, the elevation is within 1 millimeter, and the aligning accuracy of the base plate is increased.
Description
Technical field
The present invention relates to the installation of catalytic pyrolysis (DCC) ethylene unit main air processed unit, be specifically related to the installation method of the pre-buried backing plate of a kind of axial flow compressor.
Background technique
AV profile shaft stream compressor is the adjustable axial flow compressor of a kind of full stator blade, its aerodynamics characteristics are that flow, pressure regulation range are broad, each operating point efficient is high, this unit has higher automatization level simultaneously, supporting degree is high, operate steadily, all technical is all reached advanced world standards.Compressor mainly holds cylinder, adjusting cylinder, rotor, import circle, Diffuser, bearing housing, oil sealing, sealing, bearing, electric actuator etc. by casing, blade and forms.This unit is dragged by motor, adopts diaphragm coupling to connect, and thrust bearing is arranged on the air inlet side, and the casing dead point is arranged on the air inlet side.When finding in installation process in the past that pre-buried backing plate requires to find the backing plate installation fee to specifications, workload is large and absolute altitude should not be controlled, the pre-buried backing plate that for this reason by analysis compressor is attached at random carries out the technology change, and the method has obtained good effect by enforcement.
The at present large-scale axial flow compressor pre-buried backing plate quantity large (the pre-buried backing plate of general 1 compressor has 30～40) of carrying at random, and installation level and absolute altitude require high.Press the required artificial amount of general norm construction large, construction is long man-hour, and the maintenance period of every pre-buried backing plate all different (will consider because unit is in place that last organizes the set time of pre-buried backing plate).Moreover, the pre-buried backing plate of general Large Axial Compressor is all about 5～6 kilograms, unit is larger, backing plate is heavier, at present pre-buried what basically adopt is without shrinking the back-grouting material to the unit backing plate, back-grouting material good fluidity in the backing plate leveling, will ceaselessly knock with wooden mallet when looking for absolute altitude, has so more been accelerated the flowability of back-grouting material.But the method centering is loaded down with trivial details, and to the discrepancy in elevation, level by after being pressed into backing plate, beaing when adjusting with wooden mallet, absolute altitude must retrieve backing plate in case excessively low, wiped clean adds behind a small amount of grouting material to such an extent that again be pressed into the backing plate adjustment again.
Summary of the invention
The installation method that the purpose of this invention is to provide the pre-buried backing plate of axial flow compressor that a kind of duration is short and installation precision significantly improves.
The technical solution adopted in the present invention is:
The installation method of the pre-buried backing plate of axial flow compressor is characterized in that:
Step 1: at the some nuts of backing plate gusset spot welding, bolt is screwed into nut, by adjusting the bolt high and low position backing plate is carried out levelling;
Step 2: the backing plate of finishing centering is carried out once grouting;
Step 3: the backing plate maintenance is after 2-3 days, and the bolt of back-outing is born backing plate weight fully by the grouting amount, gets rid of the hard spot contact.
In the step 1, the nut quantity of backing plate gusset spot welding is 3, and the position is equilateral triangle.
In the step 1, the nut quantity of backing plate gusset spot welding is 4, and the position is square.
The present invention has the following advantages:
The present invention can effectively shorten the installation period of the pre-buried backing plate of axial flow compressor, as changing 2 axial flow compressor sets of 1,500,000 ton/years of catalytic pyrolysis (DCC) ethylene unit processed elm in the installing engineering of totally 60 polylith backing plates, pre-buried backing plate is adjusted electric welding, the backing plate of screw and is settled centering, backing plate grouting only to use 5 day time, working efficiency significantly improves, reduce the labour force and participate in, and all pre-buried backing plates are identical curing cycle after guaranteeing grouting.In the situation that the backing plate surface Machining is enough meticulous, what the levelness of backing plate can be very fast is transferred in 0.1～0.2mm, and absolute altitude has improved the validity of backing plate centering in 1mm.
Description of drawings
Fig. 1 is the schematic diagram of the original installation method of backing plate.
Fig. 2 is to the transformation schematic diagram of backing plate among the present invention.
Among the figure, 1-backing plate, 2-nut.
Embodiment
The present invention will be described in detail below in conjunction with embodiment.
At present, point out in the installation instructions of catalytic pyrolysis (DCC) ethylene device compressor group processed, seat slurry method is adopted in the installation of backing plate, and general step is as follows:
Step 1: cleaning concrete surface and water flushing are soaked.
Step 2: clean backing plate, make it appearance without greasy dirt.
Step 3: peripheral template is fixed on the line of position.
Step 4: pour into concrete and the tamping of viscous.
Step 5: backing plate is pressed into concrete, and smooths with leveling instrument.Every levelness franchise is 1mm/m, and each is organized the absolute altitude error and is not more than 3mm.
Step 6: with moist piece of sack maintenance more than three days.
Step 7: general silicate concrete, behind the cast fortnight, just can bear machine weight, do not allow too early load-bearing and tighten stone bolt.
The method length consuming time, the maintenance period of every pre-buried backing plate is all different, be by carrying out the backing plate leveling and look for absolute altitude without shrinking the back-grouting material.
For overcoming above-mentioned defective mounting, the present invention is constant to original slurry quality requirement, but the installation that is pressed into to backing plate in work progress changes in advance levelling capturing into, the installation quality of backing plate is improved greatly, if the backing plate surface Machining is meticulous, even levelness can be very fast be transferred in 0.1～0.2mm, absolute altitude is in 1mm.Concrete steps are as follows:
Step 1: at the some nuts of backing plate gusset spot welding, bolt is screwed into nut, by adjusting the bolt high and low position backing plate is carried out levelling;
Step 2: the backing plate of finishing centering is carried out once grouting;
Step 3: the backing plate maintenance is after 2-3 days, and the bolt of back-outing is born backing plate weight fully by the grouting amount, gets rid of the hard spot contact.
In the step 1, the nut quantity of backing plate gusset spot welding is 3, and the position is equilateral triangle; In the situation that the leveling requirement is higher, the nut quantity of backing plate gusset spot welding also can be set to 4, and the position is square.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (3)
1. the installation method of the pre-buried backing plate of axial flow compressor is characterized in that:
Step 1: at the some nuts of backing plate gusset spot welding, bolt is screwed into nut, by adjusting the bolt high and low position backing plate is carried out levelling;
Step 2: the backing plate of finishing centering is carried out once grouting;
Step 3: the backing plate maintenance is after 2-3 days, and the bolt of back-outing is born backing plate weight fully by the grouting amount, gets rid of the hard spot contact.
2. the installation method of the pre-buried backing plate of axial flow compressor according to claim 1 is characterized in that:
In the step 1, the nut quantity of backing plate gusset spot welding is 3, and the position is equilateral triangle.
3. the installation method of the pre-buried backing plate of axial flow compressor according to claim 1 is characterized in that:
In the step 1, the nut quantity of backing plate gusset spot welding is 4, and the position is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105756285A CN103016412A (en) | 2012-12-27 | 2012-12-27 | Installation method for embedded base plate of axial flow compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105756285A CN103016412A (en) | 2012-12-27 | 2012-12-27 | Installation method for embedded base plate of axial flow compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016412A true CN103016412A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105756285A Pending CN103016412A (en) | 2012-12-27 | 2012-12-27 | Installation method for embedded base plate of axial flow compressor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963210A (en) * | 1975-03-05 | 1976-06-15 | Macklin Charles D | Apparatus for setting anchor bolts and other objects in concrete slabs |
| US5630303A (en) * | 1995-12-08 | 1997-05-20 | Nec America, Inc. | Remote enclosure anchor frame and installation method |
| CN1966869A (en) * | 2005-11-17 | 2007-05-23 | 上海宝钢冶金建设公司 | Bearing plate screw adjusting method construction process |
| CN200978837Y (en) * | 2006-12-04 | 2007-11-21 | 上海连成（集团）有限公司 | Vertical axial flow pump pre-buried pedestal adjusting structure |
| CN101871265A (en) * | 2010-07-02 | 2010-10-27 | 中国十七冶集团有限公司 | Flat shim plate-adjustable grouting installation method |
| CN201715188U (en) * | 2010-06-29 | 2011-01-19 | 上海宝冶集团有限公司 | Base plate for equipment installation of nitrogen press |
| CN201982898U (en) * | 2011-02-17 | 2011-09-21 | 天津二十冶建设有限公司 | Equipment installation base plate regulating device |
-
2012
- 2012-12-27 CN CN2012105756285A patent/CN103016412A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963210A (en) * | 1975-03-05 | 1976-06-15 | Macklin Charles D | Apparatus for setting anchor bolts and other objects in concrete slabs |
| US5630303A (en) * | 1995-12-08 | 1997-05-20 | Nec America, Inc. | Remote enclosure anchor frame and installation method |
| CN1966869A (en) * | 2005-11-17 | 2007-05-23 | 上海宝钢冶金建设公司 | Bearing plate screw adjusting method construction process |
| CN200978837Y (en) * | 2006-12-04 | 2007-11-21 | 上海连成（集团）有限公司 | Vertical axial flow pump pre-buried pedestal adjusting structure |
| CN201715188U (en) * | 2010-06-29 | 2011-01-19 | 上海宝冶集团有限公司 | Base plate for equipment installation of nitrogen press |
| CN101871265A (en) * | 2010-07-02 | 2010-10-27 | 中国十七冶集团有限公司 | Flat shim plate-adjustable grouting installation method |
| CN201982898U (en) * | 2011-02-17 | 2011-09-21 | 天津二十冶建设有限公司 | Equipment installation base plate regulating device |
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Application publication date: 20130403 |