CN101865630B - Method and system for thermally washing pipeline - Google Patents
Method and system for thermally washing pipeline Download PDFInfo
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- CN101865630B CN101865630B CN2010101934180A CN201010193418A CN101865630B CN 101865630 B CN101865630 B CN 101865630B CN 2010101934180 A CN2010101934180 A CN 2010101934180A CN 201010193418 A CN201010193418 A CN 201010193418A CN 101865630 B CN101865630 B CN 101865630B
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- water
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- expansion tank
- flushing
- enclosed
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005406 washing Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000011010 flushing procedure Methods 0.000 claims description 27
- 238000005086 pumping Methods 0.000 claims description 8
- 238000013022 venting Methods 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 6
- 238000012372 quality testing Methods 0.000 claims description 4
- 230000009183 running Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 3
- 239000010721 machine oil Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The invention relates to a method and a system for thermally washing a pipeline, which have the advantages of convenient method, low energy consumption and good washing effect. The method comprises the following steps of: (1) starting two closed type water pumps after a system pipeline and an expansion tank are filled with water and deflated, circulating in a closed mode for one hour, and then stopping the pumps and discharging the water; (2) starting two closed type water pumps after the system pipeline and the expansion tank are filled with water and deflated again, introducing heating steam to the expansion tank by opening a control valve, cutting off the heating steam source after the water temperature rise to 60 DEG C, stopping the pumps after the system is washed for two hours, completely discharging the water in the system in a multi-point and discontinuous discharging mode during and after the washing period, and waiting for the system pipeline to be completely cooled down; and (3) washing until the washing water quality is detected to be qualified by repeatedly executing step (2).
Description
Technical field
The present invention relates to purging method of a kind of pipeline heating power and system, be applicable to the flushing of power plant closed-type circulating cooling water system pipeline.
Background technology
Closed-type circulating cooling water system in the generation current factory is complicated; The flushing resistance is bigger, and traditional normal-temperature water purging method that it adopts exists washing time long; Wastewater discharge is big; Power consumption is high, and the water quality variation often appears in system's normal operation period, causes problems such as equipment pipe obstruction, the deterioration of heat exchange effect.
Summary of the invention
The object of the invention is exactly in order to address the above problem, and provides that a kind of to have method easy, less energy consumption, the purging method of pipeline heating power and the system of the advantage that developing result is good.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of pipeline heating power rinse-system, it comprises flushing line and treats that flushing device, said flushing line are provided with the expansion tank that is connected with Steam Heating vapour source that expansion tank is connected with at least one enclosed water pump; Between the adjutage of expansion tank and enclosed pump entrance, be provided with one section and quicken pipeline and the driven valve that water temperature promotes, promote rinse water temperature to 60 ℃; In the minimum point of system and the big relatively caliber pipeline place of distal-most end at least two flush discharge mouths are set.
Said enclosed water pump has two, their paired runnings.
A kind of purging method of adopting pipeline heating power rinse-system, its step is:
(1) after system pipeline and expansion tank water-filling, the venting, starts two enclosed water pumps, closed circulation termination of pumping after 1 hour, discharge water;
(2) system pipeline and expansion tank again water-filling, the venting after; Start two enclosed water pumps, open driven valve, feed heating steam to expansion tank; Treat to cut off after water temperature rises to 60 ℃ and add hot vapour source; System's flushing termination of pumping after 2 hours is taked multiple spot, intermittent discharge mode with intrasystem water emptying between flush period with after the flushing end, and is treated that system pipeline cools down fully;
(3) repeated execution of steps (2) flushing is till rinse water quality testing is qualified.
The present invention does not change existing flushing line and all kinds of flushing devices of treating that are connected with pipeline; But in system, added Steam Heating vapour source; Design is quickened pipeline and the driven valve that water temperature promotes for one section between expansion tank adjutage and enclosed pump entrance, promotes rinse water temperature to 60 ℃ rapidly; Big caliber place in the minimum point and the distal-most end of system is provided with at least 2 flush discharge mouths, the dirt that wash is in time got rid of totally the accelerated wash-out process after finishing with flushing between flush period; The advancing of the equipment user that caliber is bigger, water return pipeline are done interim short circuit, and the advancing of caliber small device user, water return pipeline are not done interim short circuit, just break off adpting flange and do intermittent discharge, realize system's slight drag, big flow flushing; 2 enclosed water pumps of paired running guarantee to provide system's flushing required power and flow.
Concrete rinsing step is: after (1) system pipeline and expansion tank water-filling, the venting, start 2 enclosed water pumps, closed circulation termination of pumping after 1 hour, discharge water; (2) system pipeline and expansion tank again water-filling, the venting after; Start 2 enclosed water pumps, open driven valve, feed heating steam to expansion tank; Treat to cut off after water temperature rises to 60 ℃ and add hot vapour source; System's flushing termination of pumping after 2 hours is taked multiple spot, intermittent discharge mode with intrasystem water emptying between flush period with after the flushing end, and is treated that system pipeline cools down fully; (3) repeated execution of steps (2) flushing is till rinse water quality testing is qualified.
The written or printed documents beneficial effect of the invention is: it is little with workload that cost is changed by (1) system, only need increase by one tunnel Steam Heating vapour source, controls the temporary pipeline and the driven valve of system water temperature, the advancing of the big caliber of short circuit, return pipe; (2) device is simple, practical; (3) developing result is good, does not stay the dead angle, and washing time is short, and water consumption and power consumption are little; (4) need not add chemical agent, pollution-free.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Wherein, 1. expansion tank, 2. enclosed water pump A, 3. enclosed water pump B, 4. driven valve; 5. enclosed water cooler A, 6. enclosed water cooler B, 7. hydrogen dryer, 8. vavuum pump is 9. decided chilled water cooler; 10. Seal Oil cooler, 11. flush discharge mouths, 12. primary air fan coolers, 13. seal fan coolers, 14. vapour front pump coolers; 15. the heat pump cooler, the little machine oil cooler of 16. A, the little machine oil cooler of 17. B, 18. coagulate pump bearing cooler, 19. fire resistant oil coolers; 20. air preheater oil station, 21. coal-grinding machine oil stations, 22. air inducing machine oil stations, 23. air-supply machine oil stations.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Among Fig. 1, it comprises expansion tank 1, and expansion tank 1 is communicated with heating steam, and also moisturizing is connected expansion tank 1 with condensate with the demineralized water moisturizing through pipeline simultaneously.The adjutage of expansion tank 1 is connected with enclosed water pump B3 with enclosed water pump A2, between the adjutage of expansion tank 1 and said two enclosed pump entrances, is provided with one section and quickens pipeline and the driven valve 4 that water temperature promotes, lifting rinse water temperature to 60 ℃.Said two enclosed water pump paired runnings; And be connected with enclosed water cooler B6 with separately enclosed water cooler A5 respectively; The outlet pipe of said two enclosed water coolers is divided into two-way, the one tunnel sends into hydrogen dryer 7, vavuum pump 8 respectively, decides chilled water cooler 9, the water inlet of Seal Oil cooler 10, and hydrogen dryer 7, vavuum pump 8, the delivery port of deciding chilled water cooler 9, Seal Oil cooler 10 are connected with pipeline; This pipeline is provided with flush discharge mouth 11, and finally this pipeline turns back to expansion tank 1.
Another road is then sent into the little machine oil cooler of the little machine oil cooler of primary air fan cooler 12, seal fan cooler 13, vapour front pump cooler 14, heat pump cooler 15, A 16, B 17, is coagulated the water inlet at pump bearing cooler 18, fire resistant oil cooler 19, air preheater oil station 20, coal-grinding machine oil station 21, air inducing machine oil station 22, air-supply machine oil station 23, and the delivery port of the said equipment then returns expansion tank 1 by the road.On the pipeline of the rear of heat pump cooler 15, be provided with another flush discharge mouth 11.
The setting principle of two flush discharge mouths is the big relatively caliber pipeline place in the minimum point of system and distal-most end.
The above-mentioned flushing device of treating only is as an instance, in actual production, can adjust arbitrarily.
Method of the present invention is:
(1) after system pipeline and expansion tank water-filling, the venting, starts two enclosed water pumps, closed circulation termination of pumping after 1 hour, discharge water;
(2) system pipeline and expansion tank again water-filling, the venting after; Start two enclosed water pumps, open driven valve, feed heating steam to expansion tank; Treat to cut off after water temperature rises to 60 ℃ and add hot vapour source; System's flushing termination of pumping after 2 hours is taked multiple spot, intermittent discharge mode with intrasystem water emptying between flush period with after the flushing end, and is treated that system pipeline cools down fully;
(3) repeated execution of steps (2) flushing is till rinse water quality testing is qualified.
Claims (2)
1. pipeline heating power rinse-system, it comprises flushing line and treats to it is characterized in that flushing device that said flushing line is provided with the expansion tank that is connected with Steam Heating vapour source, expansion tank is connected with two enclosed water pumps, two enclosed water pump paired runnings; Between the adjutage of expansion tank and enclosed pump entrance, be provided with one section and quicken pipeline and the driven valve that water temperature promotes, promote rinse water temperature to 60 ℃; In the minimum point of system and the big relatively caliber pipeline place of distal-most end at least two flush discharge mouths are set; The advancing of the equipment user that caliber is bigger, water return pipeline are done interim short circuit, and the advancing of caliber small device user, water return pipeline are not done interim short circuit, just break off adpting flange and do intermittent discharge, realize system's slight drag, big flow flushing.
2. purging method of adopting the described pipeline heating power of claim 1 rinse-system is characterized in that its step is:
(1) after system pipeline and expansion tank water-filling, the venting, starts two enclosed water pumps, closed circulation termination of pumping after 1 hour, discharge water;
(2) system pipeline and expansion tank again water-filling, the venting after; Start two enclosed water pumps, open driven valve, feed heating steam to expansion tank; Treat to cut off after water temperature rises to 60 ℃ and add hot vapour source; System's flushing termination of pumping after 2 hours is taked multiple spot, intermittent discharge mode with intrasystem water emptying between flush period with after the flushing end, and is treated that system pipeline cools down fully;
(3) repeated execution of steps (2) flushing is till rinse water quality testing is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101934180A CN101865630B (en) | 2010-06-08 | 2010-06-08 | Method and system for thermally washing pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101934180A CN101865630B (en) | 2010-06-08 | 2010-06-08 | Method and system for thermally washing pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865630A CN101865630A (en) | 2010-10-20 |
| CN101865630B true CN101865630B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101934180A Active CN101865630B (en) | 2010-06-08 | 2010-06-08 | Method and system for thermally washing pipeline |
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| Country | Link |
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| CN (1) | CN101865630B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698995B (en) * | 2012-06-28 | 2014-04-30 | 唐山三友化工股份有限公司 | Method for washing carbonization tower water tank by utilizing cleaning gas |
| CN102798317B (en) * | 2012-08-31 | 2014-04-16 | 首钢京唐钢铁联合有限责任公司 | Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof |
| CN103499233B (en) * | 2013-10-18 | 2015-04-08 | 七台河宝泰隆甲醇有限公司 | Water cooler on-line backwashing method |
| CN106111635B (en) * | 2016-06-15 | 2018-06-05 | 青岛建设集团有限公司 | Large-scale pipeline enclosed circulation rinses construction |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB467208A (en) * | 1934-12-13 | 1937-06-14 | Du Pont | Process and apparatus for cleaning the interior surfaces of heat exchangers and the like |
| CN2241320Y (en) * | 1995-05-05 | 1996-11-27 | 鞍山钢铁公司 | Automatic in-line scale cleaning device for cooler |
| CN1152114A (en) * | 1995-12-15 | 1997-06-18 | 万小平 | Chemical cleaning process and special chemical for heating system |
| CN2603926Y (en) * | 2003-01-08 | 2004-02-18 | 福州扬达空调有限公司 | Heat exchanger cleaning machine |
| CN201093930Y (en) * | 2007-07-27 | 2008-07-30 | 贾立东 | Earth heat cleaning machine |
| CN201181184Y (en) * | 2008-02-19 | 2009-01-14 | 孙成志 | Vehicle-mounted detachable multifunctional near-line cleaning apparatus |
| CN201672852U (en) * | 2010-06-08 | 2010-12-15 | 山东电力研究院 | Thermal flushing system for pipelines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154949U (en) * | 1974-06-08 | 1975-12-22 | ||
| JP2546180B2 (en) * | 1994-02-09 | 1996-10-23 | 株式会社巴商会 | Exhaust heat recovery device for hot waste water |
| JPH09203599A (en) * | 1996-01-26 | 1997-08-05 | Toshiba Corp | Cleaning device for plate type heat exchanger |
-
2010
- 2010-06-08 CN CN2010101934180A patent/CN101865630B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB467208A (en) * | 1934-12-13 | 1937-06-14 | Du Pont | Process and apparatus for cleaning the interior surfaces of heat exchangers and the like |
| CN2241320Y (en) * | 1995-05-05 | 1996-11-27 | 鞍山钢铁公司 | Automatic in-line scale cleaning device for cooler |
| CN1152114A (en) * | 1995-12-15 | 1997-06-18 | 万小平 | Chemical cleaning process and special chemical for heating system |
| CN2603926Y (en) * | 2003-01-08 | 2004-02-18 | 福州扬达空调有限公司 | Heat exchanger cleaning machine |
| CN201093930Y (en) * | 2007-07-27 | 2008-07-30 | 贾立东 | Earth heat cleaning machine |
| CN201181184Y (en) * | 2008-02-19 | 2009-01-14 | 孙成志 | Vehicle-mounted detachable multifunctional near-line cleaning apparatus |
| CN201672852U (en) * | 2010-06-08 | 2010-12-15 | 山东电力研究院 | Thermal flushing system for pipelines |
Non-Patent Citations (1)
| Title |
|---|
| CN 2241320 , |
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| CN101865630A (en) | 2010-10-20 |
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Owner name: STATE ELECTRIC NET CROP. Effective date: 20130106 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130106 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee after: SHANDONG ELECTRIC POWER Research Institute Patentee after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee before: SHANDONG ELECTRIC POWER Research Institute |
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| CP02 | Change in the address of a patent holder |
Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: Shandong Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Electric Power Research Institute Patentee before: State Grid Corporation of China |
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| CP02 | Change in the address of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: SHANDONG ELECTRIC POWER Research Institute Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: State Grid Corporation of China |
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Effective date of registration: 20220127 Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: STATE GRID CORPORATION OF CHINA |
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