CN215261388U - Single-flow-path surface condenser rubber ball cleaning system for optimizing ball feeding - Google Patents
Single-flow-path surface condenser rubber ball cleaning system for optimizing ball feeding Download PDFInfo
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- CN215261388U CN215261388U CN202121310884.2U CN202121310884U CN215261388U CN 215261388 U CN215261388 U CN 215261388U CN 202121310884 U CN202121310884 U CN 202121310884U CN 215261388 U CN215261388 U CN 215261388U
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Abstract
A single-pass surface condenser rubber ball cleaning system for optimizing goal comprises a single-pass surface water-cooled condenser, an optimized goal system, a hot well and the like. The utility model discloses an add the optimization system of advancing at the circulating water import hydroecium of single flow surface formula water-cooled condenser to even messenger's glue ball as far as possible gets into condenser heat exchanger tube bank, reaches the purpose of wasing heat exchanger tube bank, avoids the heat exchanger tube bank of goal blind spot position always to obtain not wasing, influences the holistic heat transfer efficiency of condenser. Through the implementation of the single-flow surface type condenser rubber ball cleaning system for optimizing the ball inlet, the ball inlet uniformity of the condenser rubber ball cleaning system can be optimized, and the phenomenon that the tube bundle at the dead zone position is always not cleaned to influence the operating economy of the condenser is avoided.
Description
Technical Field
The utility model belongs to power plant boiler and steam turbine system field, concretely relates to single flow surface condenser rubber ball cleaning system for optimizing goal.
Background
The condenser is a heat exchanger for condensing the exhaust steam of the steam turbine into water. The condenser is mainly used in a steam turbine power device and is divided into a water-cooling condenser and an air-cooling condenser. The condensing equipment plays a role of a cold source in the thermodynamic cycle of the steam turbine device. The exhaust temperature and the exhaust pressure of the steam turbine are reduced, and the thermal cycle efficiency can be improved. The condenser has the main functions of establishing and maintaining high vacuum at the steam exhaust port of the steam turbine and forming a complete cycle by using water condensed from the steam exhaust of the steam turbine as boiler feed water. And the condenser keeps higher vacuum degree through exchanging heat with circulating water.
The different condensers according to the steam condensation mode can be divided into a surface type (also called dividing wall type) and a mixed type (also called contact type). In a surface condenser, steam separated from a cooling medium is condensed into liquid on a cooling wall surface (usually, a metal pipe). The cooling medium may be water or air. The water-cooled surface condenser mainly comprises a shell, a tube bundle, a water chamber and the like. The exhaust steam of the steam turbine enters the shell through the throat part, is condensed into water on the cooling pipe bundle and is collected in the hot well, and is pumped out by the condensate pump. Cooling water (also called circulating water) enters the cooling tube bundle from the inlet water chamber and is discharged from the outlet water chamber. In order to ensure that high vacuum and good heat transfer effect are maintained in the condenser when steam is condensed, the condenser is also provided with air extraction equipment which continuously extracts air and other non-condensed gases which leak into the condenser. The air extraction equipment mainly comprises a water jet air extractor, a steam jet air extractor, a mechanical vacuum pump, a combined vacuum pump and the like.
The cleanness degree of a heat exchange tube bundle of the condenser has an important influence on heat transfer, and after dirt is formed in the heat exchange tube, the flow resistance and the thermal resistance of fluid can be increased, so that the heat transfer performance of the heat exchange tube bundle is influenced. The rubber ball online cleaning system is a condenser cleaning technology which is widely used at present, dirt in the heat exchange tube bundle can be cleaned online under the condition of no shutdown, labor cost is saved, and the service life of the heat exchange tube bundle can be prolonged. However, in actual operation, because a flow field dead zone exists in an inlet water chamber of the single-flow surface type water-cooled condenser, the rubber balls are difficult to enter the heat exchange tube bundle near the dead zone, and therefore the heat exchange tube bundle at the dead zone is hardly cleaned, the cleanliness of the heat exchange tube bundle is seriously influenced, the heat transfer efficiency of the heat exchange tube bundle is influenced, and the economical efficiency of the operation of the condenser is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single flow surface condenser rubber ball cleaning system for optimizing goal adds the optimization goal system through the circulating water import hydroecium at single flow surface water-cooled condenser to the even messenger rubber ball that tries to the greatest extent gets into condenser heat exchanger tube bank, reaches the purpose of wasing heat exchanger tube bank, avoids the heat exchanger tube bank of goal blind spot position always to obtain not wasing, improves the holistic heat transfer efficiency of condenser.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a single-pass surface condenser rubber ball cleaning system for optimizing ball feeding comprises a single-pass surface water-cooled condenser, an inlet water chamber optimization ball feeding system, an outlet water chamber, a circulating water inlet, a heat exchange tube bundle, a circulating water outlet, an inlet water chamber and a hot well;
the hot well is communicated with the bottom of the single-flow surface type water-cooled condenser, an outlet water chamber is arranged on one side of the side wall of the single-flow surface type water-cooled condenser, an inlet water chamber is arranged on the other side of the side wall of the single-flow surface type water-cooled condenser, the outlet water chamber is communicated with a circulating water outlet, the inlet water chamber is communicated with a circulating water inlet, the outer side of the inlet water chamber is communicated with an inlet water chamber optimization ball feeding system, and a heat exchange tube bundle communicated with the outlet water chamber and the inlet water chamber is further arranged in the single-flow surface type water-cooled condenser.
The utility model discloses further improvement lies in, sets up import hydroecium optimization goal system in the circulating water import hydroecium department of single flow surface type water-cooled condenser.
The utility model discloses further improvement lies in, according to hydrodynamics, has some blind areas in the import water drum of circulating water, and the rivers of blind area department are hardly flowed, consequently the rubber ball also can't get into the heat exchanger tube bank around the blind area through rivers, and these heat exchanger tube banks can not obtain the washing basically, influence the whole heat transfer efficiency of single-flow surface formula water-cooled condenser.
The utility model discloses further improvement lies in, and import hydroecium optimization goal system is through addding a little booster pump in the outside of import hydroecium, makes the circulation of partial pressure in the import hydroecium to break the flow field blind spot in the import hydroecium.
The utility model discloses further improvement lies in, and import hydroecium optimization goal system can optimize the flow field of import hydroecium department, breaks the flow field blind spot, makes the even entering heat exchanger tube bank of glueballs as far as possible, makes heat exchanger tube bank obtain wasing, improves the economic nature of single flow surface formula water-cooling condenser operation.
The utility model discloses further improvement lies in, and the circulating water gets into the import hydroecium from the circulating water import, then gets into heat exchanger tube bundle, through heat exchanger tube bundle and steam turbine exhaust heat transfer, the circulating water after the heat absorption gets into the export hydroecium, flows through the circulating water export.
The utility model discloses further improvement lies in, when the condenser needs to wash, can start the rubber ball cleaning system, can drop into the rubber ball in circulating water this moment, and the rubber ball enters into the heat transfer tube bundle along with the rivers, and the cleaning tube is dirty, then flows along with the rivers, collects through receiving the ball device.
The utility model discloses further improvement lies in, import hydroecium optimization goal system is only synchronous operation when the glueballs cleaning system is put into operation, all stops transporting in other times.
The utility model discloses further improvement lies in, and the import hydroecium is optimized the business turn over of goal system, exit and is provided with inlet valve and outlet valve respectively.
The utility model discloses further improvement lies in, and the circulating water gets into the condenser after indirect air cooling tower cooling from the circulating water export back, with the steam turbine steam extraction backward flow heat transfer after the condenser that flows.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses an add the optimization system of advancing at the circulating water import hydroecium of single flow surface formula water-cooled condenser to even messenger's glue ball as far as possible gets into condenser heat exchanger tube bank, reaches the purpose of wasing heat exchanger tube bank, avoids the heat exchanger tube bank of goal blind spot position always to obtain not wasing, influences the holistic heat transfer efficiency of condenser. Through the implementation of the single-flow surface type condenser rubber ball cleaning system for optimizing the ball inlet, the ball inlet uniformity of the condenser rubber ball cleaning system can be optimized, and the phenomenon that the tube bundle at the dead zone position is always not cleaned to influence the operating economy of the condenser is avoided. In summary, the utility model has the following advantages:
(1) the flow field of the inlet water chamber of the condenser can be more uniform, the existence of a dead zone flow field is avoided, the ball inlet of the rubber ball of the inlet water chamber is optimized, and the heat exchange tube bundle is cleaned.
(2) The heat transfer efficiency of the heat exchange tube bundle is improved.
(3) The system is simple, small in investment, safe and reliable.
Drawings
Fig. 1 is a schematic view of a single-flow surface condenser rubber ball cleaning system for optimizing goal of the utility model.
Description of reference numerals:
1. the system comprises a single-flow surface type water-cooled condenser, 2, an inlet water chamber optimized ball inlet system, 3, an outlet water chamber, 4, a circulating water inlet, 5, a heat exchange tube bundle, 6, a circulating water outlet, 7, an inlet water chamber, 8, a hot well, 9, an inlet valve, 10 and an outlet valve.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model provides a single-pass surface condenser rubber ball cleaning system for optimizing goal, including single-pass surface water-cooled condenser 1, import hydroecium optimization goal system 2, export hydroecium 3, circulating water import 4, heat exchanger tube bank 5, circulating water export 6, import hydroecium 7, hot-well 8, import valve 9 and outlet valve 10; the hot well 8 communicates in the bottom of single flow surface water-cooled condenser 1, one side of single flow surface water-cooled condenser 1 lateral wall is provided with export hydroecium 3, the opposite side is provided with import hydroecium 7, export hydroecium 3 intercommunication has circulating water outlet 6, import hydroecium 7 intercommunication has circulating water import 4, the outside intercommunication of import hydroecium 7 has import hydroecium to optimize goal system 2, import hydroecium optimizes the advancing of goal system 2, the exit is provided with inlet valve 9 and outlet valve 10, still be provided with the heat exchanger tube bank 5 that communicates export hydroecium 3 and import hydroecium 7 in the single flow surface water-cooled condenser 1.
Working example 1
A certain 300MW turboset is provided with a single-pass surface type water-cooled condenser, urban reclaimed water is adopted as cooling water, impurities in the water adhere to a cooling pipeline, the cleanliness of the cooling pipeline is reduced, the heat exchange effect of the condenser is poor, the end difference of the condenser is increased, the vacuum of the condenser is reduced, and the economical efficiency of the turboset is poor. The condenser adopts the rubber ball online cleaning technology to clean the heat exchange tube bundle, however, as the inlet water chamber has a flow field dead zone, the rubber ball can not enter the heat exchange tube bundle near the dead zone, so the heat exchange tube bundle at the position can not be cleaned almost, a large amount of dirt is accumulated for a long time, the heat transfer efficiency of the heat exchange tube bundle is seriously influenced, and the economical efficiency of the operation of the condenser is influenced.
The single-pass surface type condenser rubber ball cleaning system for optimizing ball feeding is implemented on the single-pass surface type water-cooled condenser. An optimized ball inlet system is additionally arranged in a circulating water inlet water chamber of the single-flow surface type water-cooled condenser, so that rubber balls can uniformly enter a heat exchange tube bundle of the condenser as much as possible, the purpose of cleaning the heat exchange tube bundle is achieved, and the problem that the heat exchange tube bundle at the ball inlet dead zone position cannot be cleaned always is avoided, and the overall heat transfer efficiency of the condenser is influenced. By implementing the single-flow surface type condenser rubber ball cleaning system for optimizing ball feeding, the flow field of the inlet water chamber of the condenser can be more uniform, the existence of a dead zone flow field is avoided, the ball feeding of the rubber ball of the inlet water chamber is optimized, the heat exchange tube bundle is cleaned, the heat transfer efficiency of the heat exchange tube bundle is improved, and the economical efficiency of the operation of the condenser is improved; the system is simple, small in investment, safe and reliable.
When a unit normally operates, the operation mode of the single-flow surface condenser rubber ball cleaning system for optimizing ball feeding is provided.
1. When the rubber ball cleaning system of the condenser is put into operation, the inlet valve 9 is opened, the inlet water chamber optimized ball inlet system 2 is started, and the outlet valve 10 is opened.
2. And after the rubber ball cleaning system of the condenser is stopped, closing the outlet valve 10, stopping the operation of the inlet water chamber optimization goal system 2, and closing the inlet valve 9.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A single-pass surface condenser rubber ball cleaning system for optimizing ball feeding is characterized by comprising a single-pass surface water-cooled condenser (1), an inlet water chamber optimization ball feeding system (2), an outlet water chamber (3), a circulating water inlet (4), a heat exchange tube bundle (5), a circulating water outlet (6), an inlet water chamber (7) and a hot well (8);
the hot well (8) is communicated with the bottom of the single-flow surface type water-cooling condenser (1), one side of the side wall of the single-flow surface type water-cooling condenser (1) is provided with an outlet water chamber (3), the other side of the side wall of the single-flow surface type water-cooling condenser is provided with an inlet water chamber (7), the outlet water chamber (3) is communicated with a circulating water outlet (6), the inlet water chamber (7) is communicated with a circulating water inlet (4), the outer side of the inlet water chamber (7) is communicated with an inlet water chamber optimization ball feeding system (2), and a heat exchange tube bundle (5) communicated with the outlet water chamber (3) and the inlet water chamber (7) is further arranged in the single-flow surface type water-cooling condenser (1).
2. The single-pass surface condenser rubber ball cleaning system for optimizing ball intake according to claim 1, characterized in that an inlet water chamber optimization ball intake system (2) is additionally arranged at a circulating water inlet water chamber (7) of the single-pass surface water-cooled condenser (1).
3. The single-flow surface condenser rubber ball cleaning system for optimizing ball intake according to claim 1, characterized in that the inlet water chamber optimization ball intake system (2) is formed by additionally arranging a small booster pump on the outer side of the inlet water chamber (7) to circulate part of water in the inlet water chamber (7) under pressure so as to break the flow field dead zone in the inlet water chamber (7).
4. The single-pass surface condenser rubber ball cleaning system for optimizing ball intake of claim 1, wherein circulating water enters the inlet water chamber (7) from the circulating water inlet (4) and then enters the heat exchange tube bundle (5) to exchange heat with steam turbine exhaust through the heat exchange tube bundle (5), and the circulating water after heat absorption enters the outlet water chamber (3) and flows out through the circulating water outlet (6).
5. The single-pass surface condenser rubber ball cleaning system for optimizing goal according to claim 1, characterized in that when the condenser needs cleaning, the rubber ball cleaning system is started, and then rubber balls are put into circulating water, enter the heat exchange tube bundle (5) along with water flow, clean dirty in the tubes, then flow out along with the water flow, and are collected by a ball collecting device.
6. The single-pass surface condenser rubber ball cleaning system for optimizing the ball feeding according to claim 1, wherein the inlet water chamber optimization ball feeding system (2) is synchronously operated only when the rubber ball cleaning system is in operation and is stopped at other times.
7. The single-pass surface condenser rubber ball cleaning system for optimizing the ball feeding according to claim 1, wherein an inlet valve (9) and an outlet valve (10) are respectively arranged at an inlet and an outlet of the inlet water chamber optimization ball feeding system (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121310884.2U CN215261388U (en) | 2021-06-11 | 2021-06-11 | Single-flow-path surface condenser rubber ball cleaning system for optimizing ball feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121310884.2U CN215261388U (en) | 2021-06-11 | 2021-06-11 | Single-flow-path surface condenser rubber ball cleaning system for optimizing ball feeding |
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| Publication Number | Publication Date |
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| CN215261388U true CN215261388U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121310884.2U Active CN215261388U (en) | 2021-06-11 | 2021-06-11 | Single-flow-path surface condenser rubber ball cleaning system for optimizing ball feeding |
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| CN (1) | CN215261388U (en) |
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2021
- 2021-06-11 CN CN202121310884.2U patent/CN215261388U/en active Active
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