CN106271362B - Water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle - Google Patents
Water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle Download PDFInfo
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- CN106271362B CN106271362B CN201510275050.5A CN201510275050A CN106271362B CN 106271362 B CN106271362 B CN 106271362B CN 201510275050 A CN201510275050 A CN 201510275050A CN 106271362 B CN106271362 B CN 106271362B
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- reparation
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- water circulating
- corroded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to power plant cycle water pump field more particularly to a kind of repair methods of pump body flange.A kind of water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle, flange to be repaired is irised wipe and is divided into several reparation areas, the reparation area at least there are two, each mounting hole for repairing area's covering continuous flange bolt at least two positions is equipped with a block pressur plate for each area of repairing；Then it polishes respectively each reparation area, top board is padded after polishing flat and screws on flange bolt again, complete repair.The present invention, which irises wipe flange, is divided into several flattened regions, the mounting hole of two adjacent flanges bolts is included at least in each region, a block pressur plate is padded on the region after smooth, that is, solves the problems, such as to lead to bolt looseness due to corrosion, in turn simplifies the requirement to flattening process；Turbo-generator Set is avoided after water pump reparation causes unit load down to run due to water circulating pump failure or damage, it is ensured that Turbo-generator Set is safely and steadly run.
Description
Technical field
The present invention relates to power plant cycle water pump field more particularly to a kind of repair methods of pump body flange.
Background technology
Power plant cycle water pump provides direct cooling water source for Thermal Power Station, to take away the heat of turbine low pressure cylinder steam discharge
Amount, makes low pressure (LP) cylinder steam discharge be cooled to condensation water.It is generally located on the plentiful river in water source, sea, river bank bank, separate unit recirculated water pumping
Water generally reaches 2 ~ 30,000 ton hours, and working environment is severe, and pumped (conveying) medium is river water, seawater or river water, seawater is mutually handed over
It replaces.With the increase of water circulating pump run time, the water circulating pump pump housing inevitably corrodes, especially each section of the pump housing
Outlet pipe connecting flange is bolted place.Due to the generation and aggravation of corrosion, outlet pipe connecting flange faces become uneven, shadow
Ring the fastening to flange bolt.In the case of flange face seriously corroded, the problem of being fastened due to bolt and cause to recycle
During water pump operation pump housing flanged joint position generate loosening, cause Turbo-generator Set have to load down operation, influence to generate electricity
The generated energy and economy of unit, seriously even result in the damage of water circulating pump；
This kind of pump housing considers the factor of structural strength in the prior art, and flange circle and housing are all integrated casting；And method
Blue loop diameter is needed replacing at 2 meters or so as flange circle is corroded, and a set of casting needs members up to a million, and cost is very high, large-scale method
The whole reconditioning of orchid circle is again very difficult, there is no good maintaining method now.
Invention content
The technical problems to be solved by the invention are to provide a kind of water circulating pump pump housing outlet pipe and are corroded the repairing of flange circle
Compound method, this method, which irises wipe flange, is divided into several flattened regions, and two adjacent flanges bolts are included at least in each region
Mounting hole, a block pressur plate is padded on the region after smooth, simplifies the requirement to flattening process, reduce repair, replace
Cost, and saved repair time, it is ensured that Turbo-generator Set is safely and steadly run.
The invention is realized in this way：A kind of water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle, will treat
Repair flange and iris wipe and is divided into several and repairs area, the reparation area at least there are two, each area of repairing covers at least two positions
The mounting hole of continuous flange bolt is equipped with a block pressur plate for each area of repairing；Then it polishes respectively each reparation area,
Top board is padded after polishing flat and screws on flange bolt again, completes repair.
Flange circle equalization to be repaired is divided into 2 ~ 10 reparation areas.
Reparation flange circle, flange bolt and pressing plate are treated with anti-decaying paint 4 carry out preservative treatment after the completion repair.
The material of the pressing plate is the stainless steel of resisting corrosion of chlorine ion.
Flange is irised wipe and is divided into several and puts down by the be corroded restorative procedure of flange circle of water circulating pump pump housing outlet pipe of the present invention
Main plot domain includes at least the mounting hole of two adjacent flanges bolts in each region, a block pressur plate is padded on the region after smooth,
It solves the problems, such as to lead to bolt looseness due to corrosion, in turn simplifies the requirement to flattening process；It is avoided after water pump reparation
Turbo-generator Set causes unit load down to run due to water circulating pump failure or damage, it is ensured that Turbo-generator Set safety,
Steadily run.
Description of the drawings
Fig. 1 is to be shown using the be corroded flange circle of restorative procedure reparation of flange circle of water circulating pump pump housing outlet pipe of the present invention
It is intended to；
Fig. 2 is the schematic diagram that equalization is four reparation areas in embodiment；
Fig. 3 is the pressure plate structure schematic diagram for covering two adjacent mounting holes.
In figure：Areas, 6 mounting holes are repaired in 1 flange circle to be repaired, 2 pressing plates, 3 flange bolts, 4 anti-decaying paints, 5.
Specific embodiment
With reference to specific embodiment, the present invention is further explained.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after the content of the invention stated has been read, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
The restorative procedure of flange circle as shown in Figure 1, a kind of water circulating pump pump housing outlet pipe is corroded, by flange circle to be repaired
1, which is divided into several, repairs area 5, the reparation area 5 at least there are two, it is each to repair area 5 to cover at least two positions continuous
The mounting hole 6 of flange bolt 3 is equipped with a block pressur plate 2 for each area 5 of repairing；Then it polishes respectively each reparation area 5,
Top board 2 is padded after polishing flat and screws on flange bolt 3 again, completes repair；In view of the Environments of pump working
The chlorion of water is very big to the corrosivity of flange circle, in the present embodiment, the material of the pressing plate 2 for resisting corrosion of chlorine ion not
Become rusty steel.
In the present invention, according to abrasion condition, 1 equalization of flange circle to be repaired is usually divided into 2 ~ 10 reparation areas 5, abrasion
The reparation Qu Yueduo that more serious flange is irised wipe point in the present embodiment, if flange circle 1 to be repaired wears not serious, is repaired
For scheme as shown in Fig. 2, 1 equalization of flange circle to be repaired is divided into four reparation areas, each area of repairing covers five continuous peaces
Fill hole 6；If 1 serious wear of flange circle to be repaired, using pressing plate 2 as shown in Figure 3, two neighboring mounting hole 6 is assembled for one
One block pressur plate 2.
In order to improve anti-corrosion ability, in the present invention, treated after the completion repair with anti-decaying paint 4 and repair flange circle
1st, pressing plate 2 and flange bolt 3 carry out preservative treatment.
Specific workflow when carrying out actual repair according to the technique and scheme of the present invention is as follows：
It will be hung out by the pump pump housing connecting tube of following corroded together with flange circle 1 to be repaired, clear up on flange circle 1 to be repaired and stick
Attached foreign matter, divide repair area after distinguish milling with milling machine and put down each reparation area or with high speed milling tools to each reparation
It polishes respectively in area.Then with repairing the matched pressing plate in area, the material of pressing plate can be according to water circulating pump working media for selection
It is chosen, as pumped (conveying) medium is the stainless steel being considered as using resisting corrosion of chlorine ion of seawater, and selects the method for suitable length
After the completion of above-mentioned work, preservative treatment is carried out to flange and flange connector with anti-decaying paint for blue bolt.
Claims (4)
- The restorative procedure of flange circle 1. a kind of water circulating pump pump housing outlet pipe is corroded, it is characterized in that：Flange to be repaired is irised wipe Be divided into several and repair area, the reparation area at least there are two, it is each to repair area's covering continuous flange spiral shell at least two positions The mounting hole of bolt is equipped with a block pressur plate for each area of repairing；Then it polishes each reparation area, is padded after polishing flat respectively Top board simultaneously screws on flange bolt again, completes repair.
- The restorative procedure of flange circle 2. water circulating pump pump housing outlet pipe as described in claim 1 is corroded, it is characterized in that：It will treat It repairs flange circle equalization and is divided into 2 ~ 10 reparation areas.
- The restorative procedure of flange circle 3. water circulating pump pump housing outlet pipe as claimed in claim 1 or 2 is corroded, it is characterized in that： Reparation flange circle, flange bolt and pressing plate are treated with anti-decaying paint carry out preservative treatment after the completion repair.
- The restorative procedure of flange circle 4. water circulating pump pump housing outlet pipe as claimed in claim 3 is corroded, it is characterized in that：It is described The material of pressing plate is the stainless steel of resisting corrosion of chlorine ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275050.5A CN106271362B (en) | 2015-05-27 | 2015-05-27 | Water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275050.5A CN106271362B (en) | 2015-05-27 | 2015-05-27 | Water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106271362A CN106271362A (en) | 2017-01-04 |
| CN106271362B true CN106271362B (en) | 2018-06-26 |
Family
ID=57634694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275050.5A Active CN106271362B (en) | 2015-05-27 | 2015-05-27 | Water circulating pump pump housing outlet pipe is corroded the restorative procedure of flange circle |
Country Status (1)
| Country | Link |
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| CN (1) | CN106271362B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292723A (en) * | 1979-11-01 | 1981-10-06 | Cable Conveyor Systems, Inc. | Sheave and method of providing same |
| CN1899752A (en) * | 2005-07-19 | 2007-01-24 | 中国石油天然气股份有限公司 | Repairing method for deformed deck of single-deck floating top oil tank |
| CN102218639A (en) * | 2011-05-17 | 2011-10-19 | 洛阳市锅炉压力容器检验所 | Method for replacing tower barrel on site |
| CN103212937A (en) * | 2013-04-24 | 2013-07-24 | 莱芜钢铁集团有限公司 | On-line overlaying welding fan journal repairing method |
-
2015
- 2015-05-27 CN CN201510275050.5A patent/CN106271362B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292723A (en) * | 1979-11-01 | 1981-10-06 | Cable Conveyor Systems, Inc. | Sheave and method of providing same |
| CN1899752A (en) * | 2005-07-19 | 2007-01-24 | 中国石油天然气股份有限公司 | Repairing method for deformed deck of single-deck floating top oil tank |
| CN102218639A (en) * | 2011-05-17 | 2011-10-19 | 洛阳市锅炉压力容器检验所 | Method for replacing tower barrel on site |
| CN103212937A (en) * | 2013-04-24 | 2013-07-24 | 莱芜钢铁集团有限公司 | On-line overlaying welding fan journal repairing method |
Non-Patent Citations (1)
| Title |
|---|
| 金窝电站水轮机配水环管法兰面修复工艺;尹仲凯;《东方电机》;20090630(第03期);第24-26页 * |
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| Publication number | Publication date |
|---|---|
| CN106271362A (en) | 2017-01-04 |
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