CN106948887A - Power plant's Special circulation cooling water system - Google Patents
Power plant's Special circulation cooling water system Download PDFInfo
- Publication number
- CN106948887A CN106948887A CN201710354759.3A CN201710354759A CN106948887A CN 106948887 A CN106948887 A CN 106948887A CN 201710354759 A CN201710354759 A CN 201710354759A CN 106948887 A CN106948887 A CN 106948887A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling water
- pond
- chilling units
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses power plant's Special circulation cooling water system, including condenser, induced cooling tower, pond below cooling tower, water circulating pump, recirculated cooling water pipeline are arranged at；The condenser nationality is connected by the recirculated cooling water pipeline and heat exchanger is provided with the pond, the water circulating pump, the pond, and the heat exchanger nationality is connected by cold water pipes with handpiece Water Chilling Units, and the handpiece Water Chilling Units nationality obtains heat by used heat conveyance conduit.The present invention is freezed using the used heat (such as flue gas, waste water) in power plant by handpiece Water Chilling Units (such as lithium bromide chiller), obtain low-temperature cold water (6 DEG C to 8 DEG C), low-temperature cooling water is exchanged heat by the recirculated cooling water being placed in the heat exchanger and pond of cooling pond, further reduce the temperature of recirculated cooling water, so as to reduce the back pressure of condenser, steam turbine power generation amount is lifted.
Description
Technical field
The present invention relates to temperature of power plant steam turbine cooling technology field, more particularly to power plant's Special circulation cooling water system.
Background technology
In existing steam turbine power generation power plant, numerous steam turbine accessory systems, recirculating cooling water system is one huge
Dynamical system, it is ensured that condenser optimum vacuum operation, to power plant run security and economy all play to close weight
The effect wanted.
Existing cooling water system is as shown in Fig. 2 the recirculated water cooling that generally nationality will be entered in it by induced cooling tower
But to uniform temperature, it is flowed into cooling pond；Water in cooling pond delivers to condenser by water circulating pump, and in condenser
Steam heat-exchanging after, induced cooling tower is delivered to by circulating cooling water pipe, the circulation of cooling water is formed.
In actual applications, this traditional cooling water system, can generally be protected when power plant is in spring, autumn, winter
Card recirculated cooling water is run under design conditions.
However, after summer is entered, because ambient air temperature is higher, humidity is larger, and circulating cooling coolant-temperature gage is often higher than
Design load, causes back pressure of condenser too high, the operation of steam turbine load down, system lower power production.
The content of the invention
In view of the drawbacks described above of prior art, the present invention provides power plant's Special circulation cooling water system, the purpose of realization
One of be to be freezed using the used heat in power plant by handpiece Water Chilling Units, by low-temperature cooling water by be placed in the heat exchanger of cooling pond with
The temperature of recirculated cooling water heat exchange, further reduction recirculated cooling water in pond, so as to reduce the back pressure of condenser, lifts vapour
Turbine generated energy.
To achieve the above object, the invention provides power plant's Special circulation cooling water system, including condenser, mechanical draft
Cooling tower, is arranged at pond below cooling tower, water circulating pump, recirculated cooling water pipeline；The condenser nationality is by the circulation
Cooling water pipeline connects the pond, the water circulating pump.
Wherein, heat exchanger is provided with the pond, the heat exchanger nationality is connected by cold water pipes with handpiece Water Chilling Units, described cold
Water dispenser group nationality obtains heat by used heat conveyance conduit.
It is preferred that, the handpiece Water Chilling Units are lithium bromide cooling-water machine groups.
It is preferred that, the used heat nationality inputs the handpiece Water Chilling Units by flue gas or waste water.
It is preferred that, the water in the cold water pipes is cooled to 6 DEG C to 8 DEG C by the handpiece Water Chilling Units.
Beneficial effects of the present invention：
The present invention is made using the used heat (such as flue gas, waste water) in power plant by handpiece Water Chilling Units (such as lithium bromide chiller)
It is cold, low-temperature cold water (6 DEG C to 8 DEG C) is obtained, low-temperature cooling water is passed through into the circulation that is placed in the heat exchanger and pond of cooling pond
Cooling water exchanges heat, further the temperature of reduction recirculated cooling water, so as to reduce the back pressure of condenser, lifts steam turbine power generation amount.
The originally useless used heat of the applications exploiting of the present invention, while cooling water system efficiency is improved, saves energy
Source.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is illustrated that the structural representation of one embodiment of the invention.
Fig. 2 is illustrated that the structural representation of prior art.
Embodiment
Embodiment
As shown in figure 1, being cooled down the invention provides power plant's Special circulation cooling water system, including condenser 1, mechanical draft
Tower 2, is arranged at the pond 3 of the lower section of cooling tower 2, water circulating pump 4, recirculated cooling water pipeline 5；The nationality of condenser 1 is followed by described
Ring cooling water pipeline 5 connects the pond 3, the water circulating pump 4.
Wherein, heat exchanger 6 is provided with the pond 3, the nationality of heat exchanger 6 is connected by cold water pipes 8 with handpiece Water Chilling Units 9,
The nationality of handpiece Water Chilling Units 9 obtains heat by used heat conveyance conduit 7.
The principle of the present invention is that used heat is delivered in handpiece Water Chilling Units 9 by used heat conveyance conduit 7, passes through handpiece Water Chilling Units
Heat transferring medium, produce cold water, while by after heat exchange used heat discharge；The cold water that the handpiece Water Chilling Units of generation are produced passes through cold water pipe
Road 8 is delivered to heat exchanger 6, and heat exchanger is exchanged heat with the recirculated cooling water in cooling pond 3, and by cold pass to circulation it is cold
But water.Heated cold water returns to handpiece Water Chilling Units 9 by cold water pipes 8, forms circulation.
Cooled recirculated cooling water delivers to condenser 1 by water circulating pump 4, after the steam heat-exchanging in condenser, leads to
Cross circulating cooling water pipe 9 and deliver to induced cooling tower 2, induced cooling tower 2 is by the circulating water entered in it to one
Constant temperature degree, is flowed into the part of cooling pond 3, forms circulation.
In certain embodiments, the handpiece Water Chilling Units 9 are lithium bromide cooling-water machine groups.
In certain embodiments, the used heat nationality inputs the handpiece Water Chilling Units 9 by flue gas or waste water.
In certain embodiments, the water in the cold water pipes 8 is cooled to 6 DEG C to 8 DEG C by the handpiece Water Chilling Units 9.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (4)
1. power plant's Special circulation cooling water system, including condenser (1), induced cooling tower (2), are arranged at cooling tower (2)
The pond (3) of lower section, water circulating pump (4), recirculated cooling water pipeline (5)；Condenser (1) nationality is by the circulating cooling water pipe
Road (5) connects the pond (3), the water circulating pump (4)；It is characterized in that：Heat exchanger (6), institute are provided with the pond (3)
State heat exchanger (6) nationality to be connected with handpiece Water Chilling Units (9) by cold water pipes (8), handpiece Water Chilling Units (9) nationality is by used heat conveyance conduit
(7) heat is obtained.
2. power plant's Special circulation cooling water system according to claim 1, it is characterised in that the handpiece Water Chilling Units (9) are
Lithium bromide cooling-water machine group.
3. power plant's Special circulation cooling water system according to claim 1, it is characterised in that the used heat nationality by flue gas or
Waste water inputs the handpiece Water Chilling Units (9).
4. power plant's Special circulation cooling water system according to claim 1, it is characterised in that the handpiece Water Chilling Units (9) will
Water in the cold water pipes (8) is cooled to 6 DEG C to 8 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354759.3A CN106948887A (en) | 2017-05-18 | 2017-05-18 | Power plant's Special circulation cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354759.3A CN106948887A (en) | 2017-05-18 | 2017-05-18 | Power plant's Special circulation cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106948887A true CN106948887A (en) | 2017-07-14 |
Family
ID=59480230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354759.3A Pending CN106948887A (en) | 2017-05-18 | 2017-05-18 | Power plant's Special circulation cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948887A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631641A (en) * | 2017-09-01 | 2018-01-26 | 中清源环保节能有限公司 | A kind of coal-burning power plant's heat supply initial station low temperature reclaims subsidiary engine cooling water heat system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039085A (en) * | 1988-06-27 | 1990-01-24 | 孟宁生 | Cooling system of thermal power plant |
| CN201363964Y (en) * | 2009-03-12 | 2009-12-16 | 闫万河 | Device for recovering residual heat from water discharged by steam-water heat exchange unit |
| CN203615655U (en) * | 2013-11-15 | 2014-05-28 | 华电电力科学研究院 | Energy-saving device applicable to centralized cooling and heating of thermal power plants |
| CN203629424U (en) * | 2013-12-20 | 2014-06-04 | 石家庄国融安能分布能源技术有限公司 | Device for increasing cooling circulating water temperature difference |
| CN105508055A (en) * | 2015-11-27 | 2016-04-20 | 中国能源建设集团广东省电力设计研究院有限公司 | System and method for cooling circulation water in distributed energy station |
| CN206707780U (en) * | 2017-05-18 | 2017-12-05 | 上海电力设计院有限公司 | Power plant's Special circulation cooling water system |
-
2017
- 2017-05-18 CN CN201710354759.3A patent/CN106948887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039085A (en) * | 1988-06-27 | 1990-01-24 | 孟宁生 | Cooling system of thermal power plant |
| CN201363964Y (en) * | 2009-03-12 | 2009-12-16 | 闫万河 | Device for recovering residual heat from water discharged by steam-water heat exchange unit |
| CN203615655U (en) * | 2013-11-15 | 2014-05-28 | 华电电力科学研究院 | Energy-saving device applicable to centralized cooling and heating of thermal power plants |
| CN203629424U (en) * | 2013-12-20 | 2014-06-04 | 石家庄国融安能分布能源技术有限公司 | Device for increasing cooling circulating water temperature difference |
| CN105508055A (en) * | 2015-11-27 | 2016-04-20 | 中国能源建设集团广东省电力设计研究院有限公司 | System and method for cooling circulation water in distributed energy station |
| CN206707780U (en) * | 2017-05-18 | 2017-12-05 | 上海电力设计院有限公司 | Power plant's Special circulation cooling water system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631641A (en) * | 2017-09-01 | 2018-01-26 | 中清源环保节能有限公司 | A kind of coal-burning power plant's heat supply initial station low temperature reclaims subsidiary engine cooling water heat system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |
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| RJ01 | Rejection of invention patent application after publication |