CN103591833A - Power plant condenser washing device and method - Google Patents
Power plant condenser washing device and method Download PDFInfo
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- CN103591833A CN103591833A CN201310567353.5A CN201310567353A CN103591833A CN 103591833 A CN103591833 A CN 103591833A CN 201310567353 A CN201310567353 A CN 201310567353A CN 103591833 A CN103591833 A CN 103591833A
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Abstract
The invention discloses a power plant condenser washing device and method. The power plant condenser washing device comprises a hollow cavity tube. One end of the hollow cavity tube is closed, and the other end of the hollow cavity tube is open. A check valve is arranged at the open end. Exhaust holes are formed in the hollow cavity tube. Tube wall check valves in a mouth shape are arranged in the positions of the exhaust holes and are provided with clearance. At utilization time, the washing device is arranged in a hollow cavity on the circulating water inlet side of a condenser. At washing time, an air source is opened, air can enter a hollow cavity through the check valve and extrudes the tube wall check valves through the exhaust holes. When the pressure of the air is larger than the water side pressure, the clearance of the tube wall check valves is opened, and air enters water through the clearance so as to form a large number of bubbles. Finally, the bubbles go through a heat exchange tube of the condenser along with water flow and play roles in cleaning and exchanging heat. According to the power plant condenser washing device, the bubbles are utilized to wash the power plant condenser, the whole device is simple, the hollow cavity tube with a plurality of check valves are adopted, a high-pressure air source is connected at washing time, operation is easy, cleaning effect is good, and time and labor are saved.
Description
Technical field
The present invention relates to the Removal Technology of steam condenser for a kind of power plant, especially a kind of method that bubble method clears up power plant's steam condenser and supporting cleaning device of utilizing.
Background technology
Power plant's steam condenser is the vitals in power plant, and in rehydration organ pipe, stream is recirculated water, and what outside pipe, flow is the steam after steam turbine acting, utilizes recirculated water by the cooling efficiency that can improve steam turbine of steam after acting.After long-play, in steam condenser heat exchanger tube, can affect because of the microbe deposition in recirculated water heat exchanger tube heat transfer, thereby reduce the efficiency of steam turbine.Therefore when overhaul of steam turbine, conventionally need to carry out heat exchanger tube cleaning to steam condenser.During cleaning, first method is to adopt artificial flexible pipe back and forth to clean, and because heat exchanger tube is more, cleaning amount is larger.Second method is that glueballs cleans, and the pressure that utilizes the media such as air to produce pushes glueballs in heat exchanger tube, utilizes glueballs to drive attachment to move by inside pipe wall and reaches cleaning object.The third method is on-line cleaning, in the recirculated water side of steam condenser, arranges cleaning head, in running, flexible pipe is stretched in Tube Sheet of Heat Exchanger and is rotated, and reaches the object of on-line cleaning.But all there is shortcoming in various degree in this several method at present, wastes time and energy.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of succinct convenience, time saving and energy saving power plant's steam condenser cleaning device and cleaning method.
For solving the problems of the technologies described above, the technical scheme that cleaning device of the present invention is taked is: a kind of power plant steam condenser cleaning device, its key technology is: it comprises cavity pipe, the sealing of described cavity pipe one end, an end opening, described cavity tube opening end is provided with non-return valve, described cavity tube wall is provided with steam vent, and described steam vent position is provided with tube wall non-return valve, on described tube wall non-return valve, has gap.
Described tube wall non-return valve is adhered on cavity pipe; Described tube wall non-return valve shape is mouth type.
Described cavity pipe, tube wall non-return valve, non-return valve material are silicon rubber.
The method that bubble method of the present invention is cleaned power plant's steam condenser is: the cavity that first above-mentioned cleaning device is placed in to steam condenser recirculated water entrance side; When cleaning, open source of the gas, gas can enter in cavity by non-return valve, and pushes tube wall non-return valve by steam vent, and when gas pressure is greater than water lateral pressure, open in the gap of tube wall non-return valve, and gas enters in water by gap, forms a large amount of bubbles; Last bubble by steam condenser heat exchanger tube, plays clean heat exchange effect with current.
Described source of the gas is any one or a few mixing of the steam of air, nitrogen, inert gas, heating.
Operation principle of the present invention is: the phenomenon of utilizing the microorganism adsorption bubble that tube wall adheres to, by squeezing into bubbles entrain microorganism, move, utilize in addition merging that gas ducks in drink, breaking produces knocking, current is produced to the principles such as disturbance and play the object that the microorganism to adhering to is cleaned inner surface of tube wall.Water inlet at recirculated water passes into a large amount of air, forms a large amount of bubble populations in water.Bubble population is with current by steam condenser heat exchanger tube, and due to the variation of overpressure, the bubble population phenomenon such as can merge, break, produces the effects such as disturbance, knocking, absorption microorganism to tube wall current, reach the object of clean heat exchanger tube.Gases used can air, the steam of nitrogen, inert gas, composite gas or heating, preferably use air, referring to accompanying drawing 3.Wherein the structure of the similar mouth shape of tube wall non-return valve, is bonded and fixed on cavity pipe, can seal gap outside under the effect of side hydraulic pressure, can open gap and produce a large amount of bubbles when inner wall pressure is greater than extraneous hydraulic pressure.
The beneficial effect that adopts technique scheme to produce is: the present invention utilizes the bubble of generation to clear up power plant's steam condenser, bubble can produce disturbance to current, and cleaning performance is good, and package unit is very simple, adopt several with the cavity pipe of non-return valve, during cleaning, connect high-pressure air source.Whole device cost of manufacture is low, and easily operation, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of cleaning device of the present invention;
Fig. 2 is the position view of cavity tube and tube wall non-return valve of the present invention;
Fig. 3 is the schematic diagram of cleaning method of the present invention;
Wherein, 1, tube wall non-return valve; 2, cavity pipe; 3, non-return valve; 4, cavity; 5, steam vent; 6, gap; 7, bubble; 8, steam condenser.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Referring to accompanying drawing 1 and accompanying drawing 2, this cleaning device (being gas source pipe) comprises cavity pipe 2, one end sealing of described cavity pipe 2, other end opening, it installs a non-return valve 3 at openend, the tube wall of described cavity pipe 2 is provided with a plurality of steam vents that keep at a certain distance away 5, the tube wall non-return valve 1(tube wall non-return valve 1 that described steam vent 5 outsides, gas outlets are provided with mouth type from the side its shape is protruding mouth type structure), the tube wall non-return valve 1 of this mouth type can arrange one or more, on described tube wall non-return valve 1, offers gap 6.
Referring to accompanying drawing 2, described tube wall non-return valve 1 is adhered on cavity pipe 2.
The material of described cavity pipe 2, tube wall non-return valve 1 and non-return valve 3 is silicon rubber.
Referring to accompanying drawing 3, described source of the gas is any one or a few mixing of the steam of air, nitrogen, inert gas, heating.During use, cleaning device is inserted in the cavity of steam condenser recirculated water entrance side, when needs clean, open source of the gas, gas can enter cavity 4 by non-return valve 3, then by steam vent 5 extruding tube wall non-return valves 1, when gas pressure is greater than water lateral pressure, open in the gap 6 of tube wall non-return valve 1, and gas enters in water by gap, forms a large amount of bubbles.Bubble carries out heat exchange with current, plays cleaning action.
During use, be noted that the knocking meeting damage heat exchanger tube that breaking of bubble produces, produce cavitation, should carry out microorganism detection to steam condenser, when water quality meets the requirements, stop cleaning.
Claims (5)
1.Yi Zhong power plant steam condenser cleaning device, it is characterized in that: it comprises cavity pipe (2), the sealing of described cavity pipe (2) one end, an end opening, described cavity pipe (2) openend is provided with non-return valve (3), described cavity pipe (2) tube wall is provided with steam vent (5), described steam vent (5) exit is provided with tube wall non-return valve (1), has gap (6) on described tube wall non-return valve (1).
2. power plant according to claim 1 steam condenser cleaning device, is characterized in that: described tube wall non-return valve (1) is adhered on cavity pipe (2); Described tube wall non-return valve (1) shape is mouth type.
3. power plant according to claim 1 steam condenser cleaning device, is characterized in that: described cavity pipe (2), tube wall non-return valve (1), non-return valve (3) material are silicon rubber.
4. bubble method is cleaned a method for power plant's steam condenser, it is characterized in that: described method is first the cleaning device described in claim 1-3 any one to be placed in to the cavity (4) of steam condenser recirculated water entrance side; When cleaning, open source of the gas, gas can enter in cavity (4) by non-return valve, and by steam vent (5) extruding tube wall non-return valve (1), when gas pressure is greater than water lateral pressure, open in the gap (6) of tube wall non-return valve (1), and gas enters in water by gap (6), forms a large amount of bubbles; Last bubble by steam condenser heat exchanger tube, plays clean heat exchange effect with current.
5. bubble method according to claim 4 is cleaned the method for power plant's steam condenser, it is characterized in that: described source of the gas is any one or a few mixing of the steam of air, nitrogen, inert gas, heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310567353.5A CN103591833B (en) | 2013-11-15 | 2013-11-15 | A kind of power plant condenser cleaning device and cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310567353.5A CN103591833B (en) | 2013-11-15 | 2013-11-15 | A kind of power plant condenser cleaning device and cleaning method |
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| Publication Number | Publication Date |
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| CN103591833A true CN103591833A (en) | 2014-02-19 |
| CN103591833B CN103591833B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310567353.5A Active CN103591833B (en) | 2013-11-15 | 2013-11-15 | A kind of power plant condenser cleaning device and cleaning method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266539A (en) * | 2014-10-11 | 2015-01-07 | 哈电集团（秦皇岛）重型装备有限公司 | Efficient cleaning device and method of pipe holes in steam generator pipe plates |
| CN104654900A (en) * | 2014-03-13 | 2015-05-27 | 广西西创自动化有限公司 | Descaling method for evaporating pot |
| CN105091661A (en) * | 2015-08-06 | 2015-11-25 | 中国石油化工股份有限公司 | Cleaning method of waste water heat exchanger and waste water heat exchange system |
| CN110215855A (en) * | 2019-07-05 | 2019-09-10 | 山西省水利水电科学研究院 | A kind of method that bubble generator and bubble generate |
Citations (4)
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| JPS60216193A (en) * | 1984-04-11 | 1985-10-29 | Yasushi Suga | Cleaning method of inside of bath heater |
| JPS61184399A (en) * | 1985-02-08 | 1986-08-18 | Ebara Corp | Tube cleaning device for heat exchanger |
| JP2008111619A (en) * | 2006-10-31 | 2008-05-15 | Jfe Steel Kk | Inner surface cleaning method for heat transfer tube of heat exchanger |
| CN202427676U (en) * | 2011-12-29 | 2012-09-12 | 北京泰拓精密清洗设备有限公司 | Bubbling cleaning machine |
-
2013
- 2013-11-15 CN CN201310567353.5A patent/CN103591833B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60216193A (en) * | 1984-04-11 | 1985-10-29 | Yasushi Suga | Cleaning method of inside of bath heater |
| JPS61184399A (en) * | 1985-02-08 | 1986-08-18 | Ebara Corp | Tube cleaning device for heat exchanger |
| JP2008111619A (en) * | 2006-10-31 | 2008-05-15 | Jfe Steel Kk | Inner surface cleaning method for heat transfer tube of heat exchanger |
| CN202427676U (en) * | 2011-12-29 | 2012-09-12 | 北京泰拓精密清洗设备有限公司 | Bubbling cleaning machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654900A (en) * | 2014-03-13 | 2015-05-27 | 广西西创自动化有限公司 | Descaling method for evaporating pot |
| CN104654900B (en) * | 2014-03-13 | 2016-06-15 | 广西西创自动化有限公司 | The descaling method of evaporator |
| CN104266539A (en) * | 2014-10-11 | 2015-01-07 | 哈电集团（秦皇岛）重型装备有限公司 | Efficient cleaning device and method of pipe holes in steam generator pipe plates |
| CN105091661A (en) * | 2015-08-06 | 2015-11-25 | 中国石油化工股份有限公司 | Cleaning method of waste water heat exchanger and waste water heat exchange system |
| CN110215855A (en) * | 2019-07-05 | 2019-09-10 | 山西省水利水电科学研究院 | A kind of method that bubble generator and bubble generate |
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| Publication number | Publication date |
|---|---|
| CN103591833B (en) | 2015-12-30 |
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