CN108119407A - Ultra supercritical coal-fired unit large size condensate pump installation method - Google Patents
Ultra supercritical coal-fired unit large size condensate pump installation method Download PDFInfo
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- CN108119407A CN108119407A CN201611058196.5A CN201611058196A CN108119407A CN 108119407 A CN108119407 A CN 108119407A CN 201611058196 A CN201611058196 A CN 201611058196A CN 108119407 A CN108119407 A CN 108119407A
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- parallels
- pump
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- cylinder
- motor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
Abstract
The invention discloses a kind of ultra supercritical coal-fired unit large size condensate pump installation methods, comprise the following steps：（1）Preparation of construction；（2）Parallels is arranged；（3）Measurement installation parallels levelness, if not existing, adjusts parallels, until the parallels levelness of installation is within 0.05mm/m whether within 0.05mm/m；（4）Cylinder is installed；（5）Support plate levelness is measured whether within 0.05mm/m, if not existing, parallels is adjusted, until support plate levelness is within 0.05mm/m；（6）Outer barrel concentricity is measured whether within 0.05mm, if not existing, parallels is adjusted, until outer barrel concentricity is within 0.05mm；（7）Once grouting；（8）Pump installation in place；（9）Back-grouting；（10）Motor is installed；（11）Centering and connection；（12）Attachment installation check.The specification of the present invention technological process of large pump, improves work efficiency.
Description
Technical field：
The present invention relates to a kind of water pump installation methods, are installed more particularly to a kind of ultra supercritical coal-fired unit large size condensate pump
Engineering method.
Background technology：
The effect of fired power generating unit condensate pump is that the condensation water of condenser is sent into oxygen-eliminating device after low-pressure heater heats, and is maintained
Deaerator level is stablized, and under normal operating conditions, the water level in condenser is mainly adjusted according to unit load variation, when
When unit load raises, condensing capacity increases, and the water level in condenser accordingly raises, when unit load reduces, in condenser
Water level accordingly reduces, so the installation quality of condensate pump directly influences the operation stability of unit, but there are currently no a set of
Ripe effective installation method, sometimes because extending construction without a set of ripe effective installation method in installation process
Duration or the unqualified needs of installation quality are reinstalled to add construction cost.
The content of the invention：
The technical problems to be solved by the invention are：Installation quality can be improved by overcoming the deficiencies of the prior art and provide one kind, be subtracted
The ultra supercritical coal-fired unit large size condensate pump installation method of few construction cost.
The present invention is for the technical solution adopted for solving the technical problem：
A kind of ultra supercritical coal-fired unit large size condensate pump installation method, comprises the following steps：
（1）Preparation of construction：Progress equipment is unpacked and basis checks；
（2）Parallels is arranged：Parallels position is drawn according to construction drawing, suitable parallels is selected to carry out mounting arrangements；
（3）Measurement installation parallels levelness, if not existing, adjusts parallels, until the parallels water of installation whether within 0.05mm/m
Pingdu is within 0.05mm/m；
（4）Cylinder is installed：First foundation bolt is penetrated before cylinder installation, during installation cylinder vertically and horizontally center line with it is basic vertically and horizontally
Center line correlates substantially, and horizontal measurement is carried out using spirit level after cylinder installation is in place；
（5）Support plate levelness is measured whether within 0.05mm/m, if not existing, parallels is adjusted, until support plate levelness exists
Within 0.05mm/m；
（6）Outer barrel concentricity is measured whether within 0.05mm, if not existing, parallels is adjusted, until outer barrel concentricity exists
Within 0.05mm；
（7）Once grouting：It is poured using concrete, the bolt in foundation bolt is exposed into nut 2-3 during pouring and is buckled, treats ground
Bolt holes concrete strength carries out fastening foundation bolt when reaching more than 75%；
（8）Pump installation in place：Suitable suspender and binding point are selected, the vertical slowly lifting pump housing is checked when position in cylinder
After foreign, smooth placement factory supplies " O " type rubber ring in cylinder seal groove, after the pump housing is placed on cylinder, is fastenedly connected spiral shell
Bolt；
（9）Back-grouting：Paint removal at pump seat pouring is derusted with electrical grinding machine, the symmetrical spot welding in pump frame surrounding parallels group, most
After carry out concrete casting；
（10）Motor is installed：Installation of the motor to wheel is first carried out, motor is slowly placed with the vertical smoothly lifting lockset of lifting, with
Check that 0.05mm clearance gauges do not enter under motor support base faying face free state afterwards, and with top nut and adjustment jackscrew；
（11）Centering and connection：If the pump without thrust bearing, with pump to wheel for centering benchmark, if there is thrust device
Pump, disk to move simultaneously during pump and motor look for wheel；
（12）Attachment installation check：Pressure gauge, thermometer are installed, the inspection of performance is sealed to sealing waterway.
The step（2）Empty skin and the mortar bed in basic load-carrying surface are chiseled out before middle parallels arrangement, exposes cement essence,
Every group of parallels is usually no more than 3 pieces when parallels is arranged, indivedual up to five pieces in special circumstances, but can only wherein have a pair of of taper liner
Iron, parallels edge gap otherwise more than 0.05mm.
The step（4）Ne-leakage when reply cylinder water filling 24 is small before cylinder installation, cylinder installation are hung to put down when in place and be hung just,
Centerline deviation is not more than 3mm to center line to rear centering cylinder to cylinder in length and breadth with basis in length and breadth in place, makes cylinder by adjusting parallels
Absolute altitude deviation is not more than 5mm, and levelness is not more than 0.05mm/m；After adjustment order should first adjust absolute altitude level-off again, adjustment qualified
Check that each parallels answers uniform force.
The step（11）In centering and connection, if the pump without thrust bearing, provided using producer special
Look for it is packaged be fixed on stuffing-box center in stuffing-box or with cork butt pump shaft, make pump shaft and stuffing-box endoporus surrounding footpath
It is less than 0.05mm to deviation, with pump to wheel for centering benchmark, independent disk moves rotor and measures two pairs of wheel radials, end face deviation；
It if there is the pump of thrust device, disk to move simultaneously during pump and motor look for wheel, during adjustment, pass through on elastic motor support base four
A jackscrew adjusts outer circle deviation.
The present invention positive beneficial effect be：
1st, the installation method of specification of the present invention large vertical water pumps and technological process make complicated cumbersome mounting process regular
Ground combines, it is specified that correlation between various processes, improves work efficiency.
2nd, the whole units' installation of the present invention is on the basis of water pump center elevation and vertical axis, first fixed component positioning, after
Runner assembly mounting and adjusting, single component installation and unit integrally require to be combined, and strictly control the levelness, vertical of each component
Degree, concentricity, motor, the fit clearance of the throw of pump shaft and each inter-module, so as to ensure whole machine installation quality.
3rd, the construction equipment of present invention process requirement is simple, and there are no pollution to the environment for work progress, can shorten construction work
Phase, improve installation quality, save construction cost, suitable for ultra supercritical 1000MW and following fired power generating unit condensate pump and other
The installation and maintenance work of the large and medium-sized vertical-type axial-flow pump of industry field, mixed-flow pump, with good economic efficiency and social benefit.
Description of the drawings：
Fig. 1 is the construction flow chart of the present invention.
Specific embodiment：
Fig. 1 and specific embodiment make further explanation and description the present invention below in conjunction with the accompanying drawings：
Embodiment：A kind of ultra supercritical coal-fired unit large size condensate pump installation method, comprises the following steps：（1）Preparation of construction：
Progress equipment is unpacked and basis checks；（2）Parallels is arranged：Parallels position is drawn according to construction drawing, select suitable parallels into
Row mounting arrangements；（3）Measurement installation parallels levelness, if not existing, adjusts parallels, until installation whether within 0.05mm/m
Parallels levelness is within 0.05mm/m；（4）Cylinder is installed：First foundation bolt is penetrated before cylinder installation, cylinder is indulged during installation
Vertically and horizontally center line correlates cross central line substantially with basis, and horizontal measurement is carried out using spirit level after cylinder installation is in place；（5）
Support plate levelness is measured whether within 0.05mm/m, if not existing, parallels is adjusted, until support plate levelness is in 0.05mm/m
Within；（6）Outer barrel concentricity is measured whether within 0.05mm, if not existing, parallels is adjusted, until outer barrel concentricity exists
Within 0.05mm；（7）Once grouting：It is poured using concrete, the bolt in foundation bolt is exposed into nut 2-3 during pouring
Button, fastening foundation bolt is carried out when anchor (bolt) hole concrete strength reaches more than 75%；（8）Pump installation in place：Selection is suitable
Suspender and binding point, the vertical slowly lifting pump housing checked when position in cylinder after foreign, it is smooth in cylinder seal groove
It places factory and supplies " O " type rubber ring, after the pump housing is placed on cylinder, fastening bolt；（9）Back-grouting：It will be pumped with electrical grinding machine
Paint removal derusting, the symmetrical spot welding in pump frame surrounding parallels group finally carry out concrete casting at seat pouring；（10）Motor is pacified
Dress：Installation of the motor to wheel is first carried out, motor is slowly placed with the vertical smoothly lifting lockset of lifting, is then checked for motor support base
0.05mm clearance gauges do not enter under faying face free state, and with top nut and adjustment jackscrew；（11）Centering and connection：If
Pump without thrust bearing, with pump to wheel for centering benchmark, if there is the pump of thrust device, simultaneously disk move pump and motor to take turns into
During row is looked for；（12）Attachment installation check：Pressure gauge, thermometer are installed, the inspection of performance is sealed to sealing waterway.
Step（2）Empty skin and the mortar bed in basic load-carrying surface are chiseled out before middle parallels arrangement, exposes cement essence, strictly
Dabbing depth is controlled, basis can not be exposed and tie up muscle, prevent parallels from can not arrange, parallels position, arrangement pad are marked according to construction drawing
It planishes at iron, hair side is got at no parallels, the place of polishing should eliminate empty skin, expose concrete essence, polish size and should be greater than parallels
Each 10~20mm of bottom surface length and width, convenient for later micro adjustment, parallels put after should without tilting, ground by red lead check parallels with
Basic contact surface is not less than 75% and surrounding gapless.
Every group of parallels is usually no more than 3 pieces, indivedual up to five pieces in special circumstances, but can only wherein have a pair of of inclined sizing block,
A pair of of inclined sizing block area that staggers must not exceed the 25% of the gross area, and parallels exposes base edge and must not exceed 20mm, between parallels,
To be contacted between pedestal and parallels it is uniform, closely knit, parallels edge gap however more than 0.05mm, parallels should be mounted on lower margin spiral shell
At bolt both sides and plant bottom case load, equipment installs, and fastening foundation bolt finishes, and is gently tapped using hand hammer and checks that parallels should
Painstaking uniform, then each layer parallels side point is welded into entirety by non-loosening phenomenon, should not be spot-welded together with plant bottom case.
Step（4）First foundation bolt is penetrated before cylinder installation, support plate is provided on foundation bolt, measures support plate water
Whether Pingdu is within 0.05mm/m, if not existing, adjusts parallels, until support plate levelness is within 0.05mm/m, during installation
Vertically and horizontally vertically and horizontally center line correlates center line cylinder substantially with basis, and horizontal survey is carried out using spirit level after cylinder installation is in place
Amount, whether measurement outer barrel concentricity is within 0.05mm, if not existing, parallels is adjusted, until outer barrel concentricity is in 0.05mm
Within；Ne-leakage when reply cylinder water filling 24 is small before cylinder installation, cleans out cartridge mount bottom surface with metal electricity hairbrush, with
Flat smooth is repaired in parallels contact position with file, and cylinder should hang to put down and hang just when in place, first penetrate foundation bolt before in place, cylinder
When falling on soon, should allowing cylinder, vertically and horizontally vertically and horizontally center line correlates center line substantially with basis, makes cylinder Primary Location, in place
Centerline deviation is not more than 3mm to center line to centering cylinder in length and breadth with basis in length and breadth afterwards, and water is used at cylinder and pump seat faying face
Quasi- instrument, frame level measure, and making cylinder absolute altitude deviation by adjusting parallels, levelness is not more than no more than 5mm
0.05mm/m；Adjustment order checks that each parallels answers uniform force, cylinder exposed port after should first adjusting absolute altitude level-off again, adjustment qualified
It is closed using plastic cloth and plank.
Step（8）Middle rubber ring Cutting Length is suitable, pine or tension, interface not to be in excessively that 45 degree of angles overlap up and down
And cement, before placement, one layer of water durable glasses glue can be uniformly smeared in seal groove, strengthens sealing effect, to ensure to tie when in place
It is clean to close position, to ensure pump seat accurate positioning, connection bolt will plant, pump work part together with pump seat is hung and is being pumped in advance
After on cylinder, then fastening bolt, symmetrically and evenly should progressively reinforce and fasten, to prevent glass cement solidification failure, this mistake
Journey should not interrupt continuously, and seam is no more than 0.03mm between faying face should be checked after fastening.
Step（10）Before motor installation is in place, motor should install wheel, for Large Type Vertical Motor, thrust bearing
It is tile type with top guide bearing, when being installed to wheel, motor should be disposed vertically steadily, and motor is forbidden to keep flat installation to wheel, electricity
Machine bearing faying face bolt, which shifts to an earlier date, all plants, and convenient for the positioning of motor circumferencial direction, pump is connected with motor to be joined using diaphragm type
Centre connection section being loaded onto should in advance for axis device, can not install after avoiding motor in place；It also to check and be connected in centre simultaneously
After section is installed, to have certain axial gap to wheel with motor, motor should select in place safe and reliable lifting lockset and
Vertical steady, the slowly placement of lifting.
Step（11）In centering and connection, if the pump without thrust bearing, special looked for using what producer provided
It is packaged to be fixed on stuffing-box center in stuffing-box or with cork butt pump shaft, make pump shaft radially inclined with stuffing-box endoporus surrounding
Difference is less than 0.05mm, and with pump to wheel for centering benchmark, independent disk moves rotor and measures two pairs of wheel radials, end face deviation；If
There is the pump of thrust device, disk to move simultaneously during pump and motor look for wheel, during adjustment, pass through four tops on elastic motor support base
Silk adjusts outer circle deviation.
During operation, on the basis of water pump center elevation and vertical axis, first fixed component positioning, rear runner assembly installation is adjusted
Whole, single component installation and unit integrally require to be combined, and strictly control the levelness of each component, verticality, concentricity, electricity
The fit clearance of machine, the throw of pump shaft and each inter-module using effective survey calculation method, i.e., is measured with symmetric difference method and adjusted
Whole levelness；Assume axis line measurement adjustment concentricity with suspension string wire；Axis throw adjusted value is calculated with similar triangles method,
It determines component mounting and adjusting value and location fix, reduces deviation to greatest extent, ensure process quality.
The above is only the preferred embodiments of the present invention, does not make limitation in any form to the present invention, all
It is any simple modification, equivalent change and modification that technical spirit according to the invention makees above example, still falls within
In the protection domain of technical solution of the present invention.
Claims (4)
1. a kind of ultra supercritical coal-fired unit large size condensate pump installation method, it is characterized in that：Comprise the following steps：
（1）Preparation of construction：Progress equipment is unpacked and basis checks；
（2）Parallels is arranged：Parallels position is drawn according to construction drawing, suitable parallels is selected to carry out mounting arrangements；
（3）Measurement installation parallels levelness, if not existing, adjusts parallels, until the parallels water of installation whether within 0.05mm/m
Pingdu is within 0.05mm/m；
（4）Cylinder is installed：First foundation bolt is penetrated before cylinder installation, during installation cylinder vertically and horizontally center line with it is basic vertically and horizontally
Center line correlates substantially, and horizontal measurement is carried out using spirit level after cylinder installation is in place；
（5）Support plate levelness is measured whether within 0.05mm/m, if not existing, parallels is adjusted, until support plate levelness exists
Within 0.05mm/m；
（6）Outer barrel concentricity is measured whether within 0.05mm, if not existing, parallels is adjusted, until outer barrel concentricity exists
Within 0.05mm；
（7）Once grouting：It is poured using concrete, the bolt in foundation bolt is exposed into nut 2-3 during pouring and is buckled, treats ground
Bolt holes concrete strength carries out fastening foundation bolt when reaching more than 75%；
（8）Pump installation in place：Suitable suspender and binding point are selected, the vertical slowly lifting pump housing is checked when position in cylinder
After foreign, smooth placement factory supplies " O " type rubber ring in cylinder seal groove, after the pump housing is placed on cylinder, is fastenedly connected spiral shell
Bolt；
（9）Back-grouting：Paint removal at pump seat pouring is derusted with electrical grinding machine, the symmetrical spot welding in pump frame surrounding parallels group, most
After carry out concrete casting；
（10）Motor is installed：Installation of the motor to wheel is first carried out, motor is slowly placed with the vertical smoothly lifting lockset of lifting, with
No more than 0.05mm is stitched between inspection motor support base faying face afterwards, and with top nut and adjustment jackscrew；
（11）Centering and connection：If the pump without thrust bearing, with pump to wheel for centering benchmark, if there is thrust device
Pump, disk to move simultaneously during pump and motor look for wheel；
（12）Attachment installation check：Pressure gauge, thermometer are installed, the inspection of performance is sealed to sealing waterway.
2. ultra supercritical coal-fired unit large size condensate pump installation method according to claim 1, it is characterized in that：The step
Suddenly（2）Empty skin and the mortar bed in basic load-carrying surface are chiseled out before middle parallels arrangement, exposes cement essence, every group of pad when parallels is arranged
Iron is usually no more than 3 pieces, indivedual up to five pieces in special circumstances, but can only wherein have a pair of of inclined sizing block, between parallels edge
Gap however more than 0.05mm.
3. ultra supercritical coal-fired unit large size condensate pump installation method according to claim 1, it is characterized in that：The step
Suddenly（4）Ne-leakage when small to cylinder water filling 24 before cylinder installation, cylinder installation hung when in place it is flat hang just, cylinder in place after centering cylinder
Centerline deviation is not more than 3mm to center line to body in length and breadth with basis in length and breadth, is not more than cylinder absolute altitude deviation by adjusting parallels
5mm, levelness are not more than 0.05mm/m；It first adjusts absolute altitude level-off again during adjustment order, checks that each parallels should be by after adjustment is qualified
Power is uniform.
4. ultra supercritical coal-fired unit large size condensate pump installation method according to claim 1, it is characterized in that：The step
Suddenly（11）Centering and connection in, if the pump without thrust bearing, using producer provide it is special look in it is packaged in filler
Stuffing-box center is fixed in letter or with cork butt pump shaft, pump shaft is made to be less than with stuffing-box endoporus surrounding radial missing
0.05mm, with pump to wheel for centering benchmark, independent disk moves rotor and measures two pairs of wheel radials, end face deviation；If there is thrust
The pump of device disk will be moved during pump and motor look for wheel simultaneously, during adjustment, adjusted by four jackscrews on elastic motor support base
Whole outer circle deviation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058196.5A CN108119407A (en) | 2016-11-27 | 2016-11-27 | Ultra supercritical coal-fired unit large size condensate pump installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058196.5A CN108119407A (en) | 2016-11-27 | 2016-11-27 | Ultra supercritical coal-fired unit large size condensate pump installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119407A true CN108119407A (en) | 2018-06-05 |
Family
ID=62224544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611058196.5A Pending CN108119407A (en) | 2016-11-27 | 2016-11-27 | Ultra supercritical coal-fired unit large size condensate pump installation method |
Country Status (1)
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| CN (1) | CN108119407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945826A (en) * | 2019-05-15 | 2020-11-17 | 四川德润信息工程有限公司 | Pump house, equipment between water tanks and pipeline installation process |
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| JP2008111344A (en) * | 2006-10-30 | 2008-05-15 | Chugoku Electric Power Co Inc:The | Vertical shaft pump support structure |
| CN103816983A (en) * | 2014-02-24 | 2014-05-28 | 中建安装工程有限公司 | Installation construction method of large coal pulverizer |
| CN104422125A (en) * | 2013-08-21 | 2015-03-18 | 五冶集团上海有限公司 | Benzene hydrogenation project organic heating carrier gas heating furnace installation method |
| CN104454555A (en) * | 2014-12-10 | 2015-03-25 | 江苏亚梅泵业集团有限公司 | Anti-corrosive wearproof chemical centrifugal pump |
| CN104832756A (en) * | 2014-02-12 | 2015-08-12 | 五冶集团上海有限公司 | General mounting method of benzene hydrogenation engineering pump |
| CN105604129A (en) * | 2015-12-28 | 2016-05-25 | 嵊州市意海电机配件厂 | Water pump mounting construction method |
-
2016
- 2016-11-27 CN CN201611058196.5A patent/CN108119407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008111344A (en) * | 2006-10-30 | 2008-05-15 | Chugoku Electric Power Co Inc:The | Vertical shaft pump support structure |
| CN104422125A (en) * | 2013-08-21 | 2015-03-18 | 五冶集团上海有限公司 | Benzene hydrogenation project organic heating carrier gas heating furnace installation method |
| CN104832756A (en) * | 2014-02-12 | 2015-08-12 | 五冶集团上海有限公司 | General mounting method of benzene hydrogenation engineering pump |
| CN103816983A (en) * | 2014-02-24 | 2014-05-28 | 中建安装工程有限公司 | Installation construction method of large coal pulverizer |
| CN104454555A (en) * | 2014-12-10 | 2015-03-25 | 江苏亚梅泵业集团有限公司 | Anti-corrosive wearproof chemical centrifugal pump |
| CN105604129A (en) * | 2015-12-28 | 2016-05-25 | 嵊州市意海电机配件厂 | Water pump mounting construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945826A (en) * | 2019-05-15 | 2020-11-17 | 四川德润信息工程有限公司 | Pump house, equipment between water tanks and pipeline installation process |
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| PB01 | Publication | ||
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Application publication date: 20180605 |