CN204486368U - A kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect - Google Patents
A kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect Download PDFInfo
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- CN204486368U CN204486368U CN201520128378.XU CN201520128378U CN204486368U CN 204486368 U CN204486368 U CN 204486368U CN 201520128378 U CN201520128378 U CN 201520128378U CN 204486368 U CN204486368 U CN 204486368U
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Abstract
The utility model discloses a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect, comprise forced circulation pump (3), described forced circulation pump (3) is connected on the two ends pipeline of economizer recirculation manually operated door (4) of economizer recirculation pipe (12) by two ends pipeline.The utility model employing is installed connection forced circulation pump additional and is cleaned economizer forced circulation, ensure that cleaning flow velocity and cleaning agent uniformity, improve the cleaning performance of boiler economizer, the boiler thermal output caused due to fouling after avoiding unit operation declines and booster risk, installed interim sampler additional at economizer forced circulation pump discharge simultaneously, formally sample with stove water in cleaning process and carry out data analysis simultaneously, be convenient to adjust cleaning in time, the problem such as avoid cleaning fluid uneven cleaning performance brought in system not good, and have the advantages that structure is simple and cost is low.
Description
Technical field
The utility model belongs to heat power plant boiler Chemical cleaning field, particularly a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect.
Background technology
In order to remove boiler plant, system pipeline inner surface manufacturing, transport, storage, to install and hydraulic pressure, the deposit that formed in running, Chemical cleaning need be carried out, thus the Steam-water Quality improved when boiler startup runs, prevent the bad and underdeposit corrosion of metal heat transfer.Taking in ignition of the boiler Natural Circulation EDTA chemical cleaning technology, because purging system is large and complicated, clean surface is long-pending very large, if circulation and flow velocity just cannot not make cleaning fluid even, ensures cleaning performance, boiler water-cooling wall system mainly produces flow by Natural Circulation, and economizer system is owing to only circulating by economizer recirculation pipe, very easily cause that rate of circulating flow is inadequate, cleaning fluid is uneven, finally cause cleaning performance bad, as a 670t/h boiler, its water-cooling wall water capacity is 75m
3, clean surface amasss about 5000m
2, and economizer system water capacity is 15m
3, be 1/5 of water-cooling wall, and its cleaning area is 1900m
2, be 1/2.5 of water-cooling wall, if therefore economizer does not participate in systemic circulation, this part liquor strength is not enough, and cannot clean thoroughly, so how ensureing the cleaning performance of boiler economizer, is the problem that this patent will solve.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect, and structure is simple, and cleaning performance is remarkable, easy to operate, to overcome the deficiency of prior art problem.
The technical scheme that the utility model is taked is: a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect, comprise forced circulation pump, described forced circulation pump is connected on the two ends pipeline of economizer recirculation manually operated door of economizer recirculation pipe by two ends pipeline.
Preferably, above-mentioned forced circulation pump arranges two, is connected in parallel, and closes another as forced circulation pump for subsequent use during use, when running scavenging pump and damaging, switches to forced circulation pump for subsequent use, can ensure normally carrying out of cleaning process.
Preferably, above-mentioned forced circulation pump and forced circulation pump input for subsequent use are connected with forced circulation pump intake manually operated door, output is connected with forced circulation pump discharge manually operated door, isolates, avoid the carrying out affecting economizer cleaning to forced circulation pump for subsequent use or damage forced circulation pump.
Preferably, Bonding pressure table and bimetallic thermometer on above-mentioned forced circulation pump output pipe, be convenient to the ruuning situation understanding pump at any time, grasps loine pressure and variations in temperature.
Preferably, above-mentioned economizer forced circulation pump output pipe is connected with interim sampler, described sampler comprises tube connector and valve, formally sample with stove water in cleaning process and carry out data analysis simultaneously, be convenient to adjust cleaning in time, the problem such as avoid cleaning fluid uneven cleaning performance brought in system not good.
Preferably, the tube connector caliber of above-mentioned forced circulation pump is identical with economizer recirculation pipe caliber, and ensureing does not affect ducted flow velocity.
The beneficial effects of the utility model: compared with prior art, the utility model employing is installed connection forced circulation pump additional and is cleaned economizer forced circulation, ensure that cleaning flow velocity and cleaning agent uniformity, improve the cleaning performance of boiler economizer, the boiler thermal output caused due to fouling after avoiding unit operation declines and booster risk, installed interim sampler additional at economizer forced circulation pump discharge simultaneously, formally sample with stove water in cleaning process and carry out data analysis simultaneously, be convenient to adjust cleaning in time, the problem such as avoid cleaning fluid uneven cleaning performance brought in system not good, and have the advantages that structure is simple and cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-economizer, 2-drum, 3-forced circulation pump, 4-economizer recirculation manually operated door, 5-economizer motorized recycling valve, 6-forced circulation pump intake manually operated door, 7-forced circulation pump discharge manually operated door, 8-Pressure gauge, 9-bimetallic thermometer, the interim sampler of 10-, 11-main feed water pipe road valve.
Detailed description of the invention
As shown in Figure 1, a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect, comprise forced circulation pump 3, forced circulation pump 3 is connected on the two ends pipeline of the economizer recirculation pipe 12 on economizer 1 by two ends pipeline, be connected on drum 2 by pipeline one end, the other end is connected to water supply system valve 11 and economizer 1 pipeline enclosure, thus form closed loop passage with economizer 1, start forced circulation pump 3 and just can carry out pressure cleaning to economizer 1, forced circulation pump 3 arranges two, be connected in parallel, another is closed as forced circulation pump for subsequent use during use, when running scavenging pump and damaging, switch to forced circulation pump for subsequent use, normally carrying out of cleaning process can be ensured., forced circulation pump 3 and forced circulation pump input for subsequent use are connected with forced circulation pump intake manually operated door 6, output is connected with forced circulation pump discharge manually operated door 6, forced circulation pump for subsequent use or damage forced circulation pump are isolated, avoid the carrying out affecting economizer cleaning, forced circulation pump 3 output pipe connects Pressure gauge 8 and bimetallic thermometer 9 that range is 1.5Mpa, be convenient to the ruuning situation understanding forced circulation pump 3 at any time, grasp loine pressure and variations in temperature, because considering that cleaning temperature is between 125 ~ 135 DEG C, the range of bimetallic thermometer selects 0 ~ 150 degree, the tube connector caliber of forced circulation pump 3 is identical with economizer recirculation pipe caliber, ensure not affect ducted flow velocity, employing is installed additional and is connected forced circulation pump 3 pairs of economizer 1 forced circulation cleanings, ensure that cleaning flow velocity and cleaning agent uniformity, improve the cleaning performance of boiler economizer, the boiler thermal output caused due to fouling after avoiding unit operation declines and booster risk, and have the advantages that structure is simple and cost is low.
Preferred scheme further, above-mentioned forced circulation pump 3 output pipe is connected with interim sampler 10, described interim sampler 10 comprises tube connector and valve, open valve just to sample cleaning fluid, carry out data analysis simultaneously, be convenient to adjust cleaning in time, avoid the cleaning fluid problem that the uneven cleaning performance brought is not good in system.
During use, economizer motorized recycling valve 5 normally open, close economizer recirculation manually operated door 4, forced circulation pump two ends valve for subsequent use and main feed water pipe road valve 11, start the forced circulation pump 3 that economizer recirculation pipe 12 installs additional, thus economizer 1 is cleaned, ensure in cleaning process that economizer 1 cleans flow velocity and is not less than 0.3m/s, forced circulation pump 3 needs strip inspection to keep in repair before installing, install and answer test run qualified, ensure normally use in cleaning process.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (6)
1. one kind is improved the device of heat power plant boiler economizer EDTA Chemical cleaning effect, it is characterized in that: comprise forced circulation pump (3), described forced circulation pump (3) is connected on the two ends pipeline of economizer recirculation manually operated door (4) of economizer recirculation pipe (12) by two ends pipeline.
2. a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect according to claim 1, is characterized in that: described forced circulation pump (3) arranges two, is connected in parallel.
3. a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect according to claim 2, it is characterized in that: described forced circulation pump (3) input is connected with forced circulation pump intake manually operated door (6), output is connected with forced circulation pump discharge manually operated door (7).
4. a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect according to claim 1, is characterized in that: described forced circulation pump (3) output pipe is connected with Pressure gauge (8) and bimetallic thermometer (9).
5. a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect according to claim 1, it is characterized in that: described forced circulation pump (3) output pipe is connected with interim sampler (10), described sampler (10) comprises tube connector and valve.
6. a kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect according to claim 1, is characterized in that: the tube connector caliber of described forced circulation pump (3) is identical with economizer recirculation pipe caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128378.XU CN204486368U (en) | 2015-03-06 | 2015-03-06 | A kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128378.XU CN204486368U (en) | 2015-03-06 | 2015-03-06 | A kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486368U true CN204486368U (en) | 2015-07-22 |
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| CN201520128378.XU Active CN204486368U (en) | 2015-03-06 | 2015-03-06 | A kind of device improving heat power plant boiler economizer EDTA Chemical cleaning effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122931A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer connecting line system |
| CN107050984A (en) * | 2017-04-14 | 2017-08-18 | 贵州电网有限责任公司电力科学研究院 | A kind of thermal power plant condensate polishing treatment tree catches device aqueous vapor back washing device and method |
-
2015
- 2015-03-06 CN CN201520128378.XU patent/CN204486368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122931A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer connecting line system |
| CN107050984A (en) * | 2017-04-14 | 2017-08-18 | 贵州电网有限责任公司电力科学研究院 | A kind of thermal power plant condensate polishing treatment tree catches device aqueous vapor back washing device and method |
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