CN111623647A - Waste heat utilization and cooling system of air cooling unit and wet cooling unit - Google Patents
Waste heat utilization and cooling system of air cooling unit and wet cooling unit Download PDFInfo
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- CN111623647A CN111623647A CN202010386723.5A CN202010386723A CN111623647A CN 111623647 A CN111623647 A CN 111623647A CN 202010386723 A CN202010386723 A CN 202010386723A CN 111623647 A CN111623647 A CN 111623647A
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- cooling unit
- air cooling
- condenser
- wet
- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B7/00—Combinations of two or more condensers, e.g. provision of reserve condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a waste heat utilization and cooling system of an air cooling unit and a wet cooling unit, which comprises an air cooling unit condenser, an air cooling island of the air cooling unit and a wet cooling unit condenser; the condenser of the air cooling unit is connected with the air cooling island of the air cooling unit through a first pipeline; the condenser of the air cooling unit is provided with a condensate water spraying disc, the condenser of the wet cooling unit is connected with the condensate water spraying disc through a second pipeline and used for conveying condensate water of the condenser of the wet cooling unit to the condensate water spraying disc and spraying the condensate water into the condenser of the air cooling unit to perform mixed heat exchange of exhaust steam of the air cooling unit and condensate water of the wet cooling unit so as to reduce the exhaust steam temperature and pressure of the air cooling unit and improve the condensate water temperature of the wet cooling unit. The invention achieves the effect of reducing the back pressure of the air cooling unit and simultaneously heats the condensed water of the wet cooling unit, thereby achieving the effect of energy utilization on the two units and achieving the purposes of energy saving and consumption reduction.
Description
Technical Field
The invention relates to the technical field of waste heat recovery of thermal power plants, in particular to a waste heat utilization and cooling system of an air cooling unit and a wet cooling unit.
Background
Under the great trend of energy conservation and emission reduction, waste heat recovery of a thermal power plant unit and exhaust cooling of an air cooling turbine are imperative, more and more projects are provided for waste heat recovery of the power plant and exhaust cooling of the air cooling turbine, the investment is large, and the operation cost is high.
In view of the above-mentioned defects, the present designer actively makes research and innovation to create a waste heat utilization system and a cooling method for an air-cooled power plant for a power plant having an air-cooled unit and a wet-cooled unit, so as to achieve the purpose of energy saving and consumption reduction.
Disclosure of Invention
The invention aims to provide a waste heat utilization and cooling system of an air cooling unit and a wet cooling unit, which aims at a power plant with the air cooling unit and a water cooling unit at the same time, effectively recovers the waste heat of the air cooling unit, and reduces the exhaust pressure of the air cooling unit, thereby achieving the purposes of saving energy and reducing consumption.
The invention provides a waste heat utilization and cooling system of an air cooling unit and a wet cooling unit, which comprises an air cooling unit condenser, an air cooling island of the air cooling unit and a wet cooling unit condenser;
the condenser of the air cooling unit is connected with the air cooling island of the air cooling unit through a first pipeline;
the air cooling unit condenser is equipped with the condensate water trickle dish, wet cold unit condenser pass through the second pipeline with the condensate water trickle dish is connected, be used for with the condensate water of wet cold unit condenser is carried extremely the condensate water trickle dish sprays into the air cooling unit condenser carries out air cooling unit exhaust and wet cold unit condensate water mixed heat transfer to reduce air cooling unit exhaust temperature and pressure, promote wet cold unit condensate temperature.
Furthermore, the second pipeline is provided with a condensate water booster pump and a valve.
Furthermore, the condenser of the air cooling unit and the condenser of the wet cooling unit are respectively connected with the condensate pump of the air cooling unit and the condensate pump of the wet cooling unit through a third pipeline and a fourth pipeline.
Furthermore, the condenser of the air cooling unit is a condenser of an air cooling system of the direct air cooling unit.
Furthermore, the number of the condensers of the wet cooling unit is two or three, and the condensers of the wet cooling unit are condensers with equal backpressure or high-low pressure condensers with unequal backpressure.
Furthermore, the condenser of the wet cooling unit is a condenser of one unit, a condenser of two units or a condenser of three units.
Further, the air cooling unit capacity is 100MW and above unit, including 200MW, 300MW, 600MW, 1000MW grade capacity unit, wet cold machine group is 100MW and above unit, including 200MW, 300MW, 600MW, 1000MW grade capacity unit.
Further, the structural form of the condensed water sprinkling plate is a nozzle type, a splashing type or a spraying type.
By means of the scheme, the condensed water of the wet cooling unit is sprayed to the condenser of the air cooling generator set through the waste heat utilization and cooling system of the air cooling unit and mixed heat exchange between the condensed water of the wet cooling unit and the exhaust steam of the air cooling unit is carried out, so that the effect of reducing the back pressure of the air cooling unit is achieved, the condensed water of the wet cooling unit is also heated, the effect of utilizing energy is achieved for the two units, and the purposes of saving energy and reducing consumption are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a waste heat utilization and cooling system of an air cooling unit and a wet cooling unit.
Reference numbers in the figures:
1-condenser of air cooling unit; 2-a first conduit; 3-air cooling island of air cooling unit; 4-condenser of wet cooling unit; 5-a condensed water delivery pipeline; 6-a fourth conduit; 7-a condensate pump of a wet cooling unit; 8-a second conduit; 9-a condensate booster pump; 10-a valve; 11-a condensed water sprinkling plate; 12-a third conduit; and 13-air cooling unit condensate pump.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the embodiment provides a waste heat utilization and cooling system for an air cooling unit and a wet cooling unit, which includes an air cooling unit condenser 1, an air cooling island 3 of the air cooling unit, and a wet cooling unit condenser 4;
the condenser 1 of the air cooling unit is connected with the air cooling island 3 of the air cooling unit through a first pipeline 2;
the air cooling unit condenser 1 is provided with a condensate water sprinkling disc 11, the wet cooling unit condenser 4 is connected with the condensate water sprinkling disc 11 through a second pipeline 8, and the condensate water of the wet cooling unit condenser 4 is conveyed to the condensate water sprinkling disc 11 and sprayed into the air cooling unit condenser 1 to perform mixed heat exchange of the exhaust steam of the air cooling unit and the condensate water of the wet cooling unit so as to reduce the exhaust steam temperature and pressure of the air cooling unit and improve the condensate water temperature of the wet cooling unit.
In this embodiment, the second pipe 8 is provided with a condensate booster pump 9 and a valve 10.
In this embodiment, the air-cooling unit condenser 1 and the wet-cooling unit condenser 4 are connected to the air-cooling unit condensate pump 13 and the wet-cooling unit condensate pump 7 through the third pipe 12 and the fourth pipe 6, respectively. The condenser 1 of the air cooling unit is connected with a condensate pump 7 of the wet cooling unit through a condensate water conveying pipeline 5.
In the present embodiment, the condenser 1 of the air-cooling unit is a condenser of an air-cooling system of a direct air-cooling unit.
In this embodiment, the number of the condensers 4 of the wet cooling unit is two or three, and the condensers 4 of the wet cooling unit are condensers with equal back pressure or high-low pressure condensers with unequal back pressure.
In the present embodiment, the condenser 4 of the wet cooling unit may be a condenser of one unit, a condenser of two units, or a condenser of three units.
In this embodiment, the capacity of air cooling unit is 100MW and above unit, including 200MW, 300MW, 600MW, 1000MW grade capacity unit, wet cold machine group is 100MW and above unit, including 200MW, 300MW, 600MW, 1000MW grade capacity unit.
In this embodiment, the condensation water sprinkling plate 11 may be of a nozzle type, a splash type or a shower type, and the number of the nozzles may be one or more than one.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An air cooling unit and wet cooling unit waste heat utilization and cooling system is characterized by comprising an air cooling unit condenser (1), an air cooling island (3) of the air cooling unit and a wet cooling unit condenser (4);
the condenser (1) of the air cooling unit is connected with the air cooling island (3) of the air cooling unit through a first pipeline (2);
air cooling unit condenser (1) is equipped with condensate water trickle dish (11), wet cooling unit condenser (4) through second pipeline (8) with condensate water trickle dish (11) are connected, be used for with the condensate water of wet cooling unit condenser (4) is carried extremely condensate water trickle dish (11) are spouted into air cooling unit condenser (1) carries out air cooling unit exhaust and wet cooling unit condensate water and mixes the heat transfer to reduce air cooling unit exhaust temperature and pressure, promote wet cooling unit condensate temperature.
2. The system for utilizing and cooling the residual heat of the air cooling unit and the wet cooling unit according to claim 1, wherein the second pipeline (8) is provided with a condensate water booster pump (9) and a valve (10).
3. The system for utilizing the residual heat of the air cooling unit and the wet cooling unit and cooling the residual heat of the wet cooling unit according to claim 1, wherein the condenser (1) of the air cooling unit and the condenser (4) of the wet cooling unit are respectively connected with the condensate pump (13) of the air cooling unit and the condensate pump (7) of the wet cooling unit through a third pipeline (12) and a fourth pipeline (6).
4. The system for utilizing the residual heat of the air cooling unit and the wet cooling unit according to claim 1, wherein the condenser (1) of the air cooling unit is a condenser of an air cooling system of a direct air cooling unit.
5. The waste heat utilization and cooling system of the air cooling unit and the wet cooling unit according to claim 1, wherein the number of the condensers (4) of the wet cooling unit is two or three, and the condensers (4) of the wet cooling unit are condensers with equal back pressure or high and low pressure condensers with unequal back pressure.
6. The system for utilizing and cooling the waste heat of the air cooling unit and the wet cooling unit according to claim 1, wherein the condenser (4) of the wet cooling unit is a condenser of one unit, a condenser of two units or a condenser of three units.
7. The system of claim 1, wherein the capacity of the air cooling unit is 100MW or more, including 200MW, 300MW, 600MW, 1000MW grade capacity units, and the capacity of the wet cooling unit is 100MW or more, including 200MW, 300MW, 600MW, 1000MW grade capacity units.
8. The waste heat utilization and cooling system of the air cooling unit and the wet cooling unit as claimed in claim 1, wherein the condensed water sprinkling plate (11) is in a structure form of a nozzle type, a splashing type or a spraying type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386723.5A CN111623647A (en) | 2020-05-09 | 2020-05-09 | Waste heat utilization and cooling system of air cooling unit and wet cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386723.5A CN111623647A (en) | 2020-05-09 | 2020-05-09 | Waste heat utilization and cooling system of air cooling unit and wet cooling unit |
Publications (1)
| Publication Number | Publication Date |
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| CN111623647A true CN111623647A (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010386723.5A Pending CN111623647A (en) | 2020-05-09 | 2020-05-09 | Waste heat utilization and cooling system of air cooling unit and wet cooling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344758A (en) * | 2020-10-23 | 2021-02-09 | 东方电气集团东方汽轮机有限公司 | Deep heat supply cold end system of direct air cooling unit |
-
2020
- 2020-05-09 CN CN202010386723.5A patent/CN111623647A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344758A (en) * | 2020-10-23 | 2021-02-09 | 东方电气集团东方汽轮机有限公司 | Deep heat supply cold end system of direct air cooling unit |
| CN112344758B (en) * | 2020-10-23 | 2022-06-24 | 东方电气集团东方汽轮机有限公司 | Deep heat supply cold end system of direct air cooling unit |
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