CN106640738A - Protection method for safe operation of condensate water pump at special stage - Google Patents
Protection method for safe operation of condensate water pump at special stage Download PDFInfo
- Publication number
- CN106640738A CN106640738A CN201611231981.6A CN201611231981A CN106640738A CN 106640738 A CN106640738 A CN 106640738A CN 201611231981 A CN201611231981 A CN 201611231981A CN 106640738 A CN106640738 A CN 106640738A
- Authority
- CN
- China
- Prior art keywords
- water
- condensate
- sealing
- condensate pump
- water pump
- 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.)
- Pending
Links
Classifications
-
- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0281—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition not otherwise provided for
Abstract
The invention discloses a sealing water system of a condensate water pump. The sealing water system is used for preventing air from entering the condensate water pump and preventing condensate water from leaking outside, and has a certain cooling effect on a condensate water pump bearing. At the later stage of shutdown overhaul of power plant equipment and initial stage of trial operation of a new unit, the operation of a closed water system is not still completed and further potential possibility that the water quality of the closed water system declines exists. According to the sealing water system disclosed by the invention, a branch is added on a condensate water supplementing mother pipe to serve as sealing water of the condensation water pump, so that the condition that a seal of the condensation water pump is damaged due to unqualified water quality is effectively prevented, and the safety of the condensate water system and equipment is guaranteed.
Description
Technical field
The invention belongs to condensate pump seal water system technological transformation field.
Background technology
Existing condensate pump seal water system, mostly using closed-up water, two kinds of sealing water water sources of condensate, adjusts at the scene
During examination, condensate pump test run initial stage sealing water water quality is not often up to standard, is easily caused condensate pump sealing wear and damages appearance
Failure, when serious can damage equipment, to prevent the appearance of such case, need to be optimized condensate pump seal water system and change
Make.In flushing device stage by stage, equipment progressively puts into operation closed-up water, and water quality can decline, and at the commissioning of individual system initial stage, preliminary operation coagulates
The pump stage is born water, condensate and closed-up water water quality are also unqualified, the stage closed-up water can't seal water as condensate pump, together
When condensate be also underproof, it is impossible to put into self sealss.To ensure the preliminary operation operation of the normal safe of condensate pump, to condensing
The seal water system of water pump is transformed.
The content of the invention
The guard method that a kind of particular time condensate pump puts into operation safely, i.e., increase branch road and make in condensate moisturizing main pipe
To condense pump seal water, simple, construction volume is less, can effectively prevent sealing water from causing condensate pump close because water quality is unqualified
Envelope is damaged.
As shown in figure 1, a bypass line is individually drawn from condensate moisturizing pipeline, using the branch road water source as condensate
Pump seal water.Manually operated door and non-return valve are installed in the bypass line after repacking, for adjusting sealing water pressure, this is being disabled
When road is supplied water, prevent from sealing water from this branch road backflow.Install on the sealing pipeline that enters before solidifying pump seal ring of water pressure gauge and
Condense pump safe control loop.Valve wide open and water pressure is sealed when being still below regulation low value, safe control loop action makes to coagulate
Bear water pump tripping operation.
In commissioning of individual system initial stage preliminary operation condensate pump, the branch road sealing water manually operated door is opened, close enclosed exit of pump
Main pipe and condensate pump export main pipe and seal water manually operated door to condensate pump.Start desalination water pump and sealing water is provided, remain normal
Sealing water pressure.Closed Water System seals water source and is changed to through the flushing of a period of time Jing after chemical examination water quality reaches required standard
Closed-up water, starts enclosed water pump, opens closed-up water main pipe and seals water manually operated door to condensate pump, simultaneously closes off other two-way for close
Water shutoff manually operated door, period keeps sealing water pressure to maintain in normal range (NR).
Description of the drawings
Fig. 1 is condensate pump seal water system schematic diagram after transformation.
Claims (3)
1. the guard method that a kind of particular time condensate pump puts into operation safely, is characterized in that：It is included in condensate moisturizing main pipe
Increase branch road to seal to condensate pump, install manually operated door, non-return flap on pipeline additional；Pressure gauge, pressure are installed additional on sealing jellyfish pipe to open
Close and its control loop, for monitoring pressure and protection condensate pump sealing.
2. the guard method that a kind of particular time condensate pump according to claim 1 puts into operation safely, is characterized in that：Including
In condensate moisturizing main pipe to condensate pump sealing pipeline left-hand seat dynamic door, non-return flap, manually operated door regulating flow quantity, non-return flap can be prevented
Only other water source recharges；When later stage is without this road, manually operated door, non-return flap are closed.
3. the guard method that a kind of particular time condensate pump according to claim 1 puts into operation safely, is characterized in that：Including
Pressure gauge, pressure switch and its control loop are installed additional on condensate pump sealing jellyfish pipe, condense for monitoring pressure and protection
When water pump packing, valve wide open and sealing water pressure are still below regulation low value, safe control loop action makes condensate pump trip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231981.6A CN106640738A (en) | 2016-12-28 | 2016-12-28 | Protection method for safe operation of condensate water pump at special stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231981.6A CN106640738A (en) | 2016-12-28 | 2016-12-28 | Protection method for safe operation of condensate water pump at special stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640738A true CN106640738A (en) | 2017-05-10 |
Family
ID=58831827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611231981.6A Pending CN106640738A (en) | 2016-12-28 | 2016-12-28 | Protection method for safe operation of condensate water pump at special stage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915144A (en) * | 2021-09-17 | 2022-01-11 | 湖南精工特泵有限公司 | Condensation pump |
| CN114352942A (en) * | 2021-12-09 | 2022-04-15 | 华电国际电力股份有限公司天津开发区分公司 | Water pump mechanical sealing system capable of automatically switching sealing water source and adjusting pressure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012264A (en) * | 2002-06-06 | 2004-01-15 | Toshiba Corp | Facility for recovering condensed water in in-plant steam system of nuclear power plant |
| JP2009127568A (en) * | 2007-11-26 | 2009-06-11 | Chugoku Electric Power Co Inc:The | Sealing water collection system and power generation facility including same |
| CN101661270A (en) * | 2009-08-03 | 2010-03-03 | 广东电网公司电力科学研究院 | Automatic washing and water supply control method for side condensed water system of steam turbine of thermal power plant |
| CN102278299A (en) * | 2011-05-31 | 2011-12-14 | 秦革 | Deep frequency conversion system of condensate pump of power station |
| CN203257485U (en) * | 2013-05-08 | 2013-10-30 | 大唐邓州生物质能热电有限责任公司 | Condensate system |
| CN103474108A (en) * | 2013-09-03 | 2013-12-25 | 中国核电工程有限公司 | Safe replenishment method of auxiliary water supply system |
| CN203656906U (en) * | 2013-12-11 | 2014-06-18 | 中国神华能源股份有限公司 | Booster pump mechanical seal water system |
| CN104033390A (en) * | 2014-06-06 | 2014-09-10 | 西安热工研究院有限公司 | Condensate water pump and condensate water system for turbine set as well as control method for condensate water flow |
-
2016
- 2016-12-28 CN CN201611231981.6A patent/CN106640738A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012264A (en) * | 2002-06-06 | 2004-01-15 | Toshiba Corp | Facility for recovering condensed water in in-plant steam system of nuclear power plant |
| JP2009127568A (en) * | 2007-11-26 | 2009-06-11 | Chugoku Electric Power Co Inc:The | Sealing water collection system and power generation facility including same |
| CN101661270A (en) * | 2009-08-03 | 2010-03-03 | 广东电网公司电力科学研究院 | Automatic washing and water supply control method for side condensed water system of steam turbine of thermal power plant |
| CN102278299A (en) * | 2011-05-31 | 2011-12-14 | 秦革 | Deep frequency conversion system of condensate pump of power station |
| CN203257485U (en) * | 2013-05-08 | 2013-10-30 | 大唐邓州生物质能热电有限责任公司 | Condensate system |
| CN103474108A (en) * | 2013-09-03 | 2013-12-25 | 中国核电工程有限公司 | Safe replenishment method of auxiliary water supply system |
| CN203656906U (en) * | 2013-12-11 | 2014-06-18 | 中国神华能源股份有限公司 | Booster pump mechanical seal water system |
| CN104033390A (en) * | 2014-06-06 | 2014-09-10 | 西安热工研究院有限公司 | Condensate water pump and condensate water system for turbine set as well as control method for condensate water flow |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915144A (en) * | 2021-09-17 | 2022-01-11 | 湖南精工特泵有限公司 | Condensation pump |
| CN114352942A (en) * | 2021-12-09 | 2022-04-15 | 华电国际电力股份有限公司天津开发区分公司 | Water pump mechanical sealing system capable of automatically switching sealing water source and adjusting pressure |
| CN114352942B (en) * | 2021-12-09 | 2023-07-25 | 华电国际电力股份有限公司天津开发区分公司 | Water pump mechanical sealing system capable of automatically switching sealing water source and adjusting pressure |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |