CN207487438U - A kind of four flow cooling water system of condenser - Google Patents
A kind of four flow cooling water system of condenser Download PDFInfo
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- CN207487438U CN207487438U CN201721178066.5U CN201721178066U CN207487438U CN 207487438 U CN207487438 U CN 207487438U CN 201721178066 U CN201721178066 U CN 201721178066U CN 207487438 U CN207487438 U CN 207487438U
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- cooling water
- condenser
- butterfly valve
- pipe road
- water outlet
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Abstract
A kind of four flow cooling water system of condenser, including two groups of cooling water pipelines and condenser, condenser is connected with two groups of cooling water pipelines, every group of cooling water pipeline includes a cooling water inlet pipe road and a corresponding cooling water outlet pipe road, connecting pipe is provided between any one group of cooling water inlet pipe road and another group of cooling water outlet pipe road, and connection dish valve is provided on connecting pipe；It is both provided on each cold water inlet road in two groups into water butterfly valve, water outlet butterfly valve is both provided on each cooling water outlet pipe road in two groups, and connecting pipe one end is arranged between water butterfly valve and condenser, and the other end is arranged between water outlet butterfly valve and condenser.The utility model can effectively solve the easy scale problems of Cooling Tubes of Condenser caused by cooling water flow velocity is low, for being configured for the unit of rubber ball cleaning system, improve after cooling down water flow velocity in Cooling Tubes of Condenser, improve unit operation economy and safety.
Description
Technical field
The utility model is related to four flows of a kind of power station steam turbine condenser cooling water system more particularly to a kind of condenser
Cooling water system.
Background technology
Power station steam turbine condenser cooling water system is generally double-flow cooling water system, condenser recirculated cooling water difference
Condenser is entered by A sides cooling water inlet pipe road and B sides cooling water inlet pipe road, is then discharged respectively by A sides cooling water
Pipeline and B sides cooling water outlet pipe road outflow condenser, condenser recirculated cooling water are supplied by water circulating pump, single steam turbine group
Three water circulating pumps can be configured in generally two water circulating pumps of configuration, indivedual units, and the water circulating pump of part of generating units configuration can height
Speed operation or converting operation, that is to say, that the water circulating pump of power station steam turbine group configuration is often there are many optional method of operation, often
The kind method of operation corresponds to different circulating cooling water flows.
There are optimum vacuums, different operating mode tubine optimum vacuums during power station steam turbine normal operation to correspond to different follow
Ring the working way of pump and circulating cooling water flow, generally speaking as unit load reduces or circulating cooling coolant-temperature gage reduces,
The corresponding circulating cooling water flow of steam turbine optimum vacuum gradually decreases, and causes in unit running on the lower load and circulating cooling water temperature
Relatively low operating mode is spent, the water circulating pump method of operation often selects single pump operation or followed according to the selection of water circulating pump configuring condition
The pump low speed operation of ring water pump list or single pump frequency conversion operation.
It is reduced however as circulating cooling water flow, the cooling water flow velocity in Cooling Tubes of Condenser reduces, and be easy to cause solidifying
Vapour device cooling tube fouling, for being configured for the condenser of rubber ball cleaning system, due to cooling down water flow velocity in Cooling Tubes of Condenser
It reduces, rubber ball cleaning system can be directly resulted in and be unable to bringing normally into operation, and then can also cause Cooling Tubes of Condenser fouling, dirty, most
Condenser heat transfer property is caused to decline eventually, influences unit operation economy, part is serious to be also possible to condenser can be caused to cool down
Pipe corrosion aggravation, influences unit safety operation.
Utility model content
The purpose of this utility model is to provide a kind of four flow cooling water systems of condenser, can realize condenser double fluid
The switching of journey cooling water system and four flow cooling water systems can effectively solve the condenser caused by cooling water flow velocity is low
The easy scale problems of cooling tube.
In order to achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of four flow cooling water system of condenser, including two groups of cooling water pipelines and condenser, condenser and two groups it is cold
But waterpipe is connected, and every group of cooling water pipeline includes a cooling water inlet pipe road and a corresponding cooling water outlet pipe
Road is provided with connecting pipe, and even between any one group of cooling water inlet pipe road and another group of cooling water outlet pipe road
Connection dish valve is provided on threading a pipe；It is both provided on each cold water inlet road in two groups into water butterfly valve, it is every in two groups
Be both provided with water outlet butterfly valve on a cooling water outlet pipe road, and connecting pipe one end be arranged on into water butterfly valve and condenser it
Between, the other end is arranged between water outlet butterfly valve and condenser.
The utility model, which further improves, to be, condenser is power station steam turbine double-flow condenser.
The utility model, which further improves, to be, including a condenser and two groups of cooling water pipelines, one group of cooling
Waterpipe include the first cooling water inlet pipe road and corresponding first cooling water outlet pipe road, another group include the second cooling water into
Waterpipe and corresponding second cooling water outlet pipe road, are provided with the first water inlet butterfly valve on the first cooling water inlet pipe road, and first
The first water outlet butterfly valve is provided on cooling water outlet pipe road, the second water inlet butterfly valve is provided on the second cooling water inlet pipe road, the
The second water outlet butterfly valve is provided on two cooling water outlet pipe roads；Connecting pipe one end be arranged on the second water inlet butterfly valve and condenser it
Between pipeline on, the other end is arranged on the pipeline between the first water outlet butterfly valve and condenser；Connection is provided on connecting pipe
Butterfly valve.
The utility model, which further improves, to be, including two condensers, wherein, it is provided with first on a condenser
Cooling water inlet pipe road and the second cooling water inlet pipe road are provided with the first cooling water outlet pipe on another condenser accordingly
Road and the second cooling water outlet pipe road are connected by pipeline between two condensers, the second cooling water inlet pipe road and first cold
But connecting pipe is provided between water outlet conduit, and connection butterfly valve is provided on connecting pipe；First cooling water inlet pipe
The first water inlet butterfly valve is provided on road, the first water outlet butterfly valve, the water inlet of the second cooling water are provided on the first cooling water outlet pipe road
The second water inlet butterfly valve is provided on pipeline, the second water outlet butterfly valve is provided on the second cooling water outlet pipe road；The one of connecting pipe
End is arranged on the pipeline between the second water inlet butterfly valve and condenser, and the other end is arranged between the first water outlet butterfly valve and condenser
Pipeline on.
The utility model, which further improves, to be, when circulating cooling water flow velocity is more than 1.4m/s, connection butterfly valve is closed
It closes, the first water inlet butterfly valve, the second water inlet butterfly valve, the first water outlet butterfly valve, the second water outlet butterfly valve of condenser keep standard-sized sheet；
When circulating cooling water flow velocity is less than 1.4m/s, connection butterfly valve is opened, is then shut off the first water outlet butterfly of condenser
Valve and the second water inlet butterfly valve.
Compared with prior art, the beneficial effects of the utility model are：The utility model passes through cold at any one group
But connecting pipe is set between water inlet channel and another group of cooling water outlet pipe road, and connection butterfly valve is set, i.e., using phase
To being simply transformed, the switching between condenser double-flow cooling water system and four flow cooling water systems can be realized, in vapour
Wheel unit load is smaller, under the smaller operating mode of circulating cooling coolant-temperature gage, with the reduction of circulating cooling water flow, passes through condenser
The operation of four flow cooling water systems can effectively solve the easy fouling of Cooling Tubes of Condenser caused by cooling water flow velocity is low and ask
Topic for being configured for the unit of rubber ball cleaning system, is conducive to putting into operation for rubber ball cleaning system, it is cold to advantageously account for condenser
But in-tube fouling, dirty, etching problem improve unit operation economy and safety.
The utility model at runtime, when circulating cooling water flow flow velocity be more than 1.4m/s when, condenser cooling water system
Blanket insurance hold double-flow cooling water system operation, at this time connect butterfly valve close, condenser first intake butterfly valve, second water inlet butterfly valve,
First water outlet butterfly valve, the second water outlet butterfly valve keep standard-sized sheet, realize the operation of condenser double-flow cooling water system；Work as circulating cooling
When water flow flow velocity is less than 1.4m/s, connection butterfly valve is opened, condenser first is then shut off and is discharged butterfly valve and the second water inlet butterfly valve,
Realize that four flow cooling water system of condenser is run, flow velocity is close to cooling tube design current velocity (about 2.2m/ in Cooling Tubes of Condenser
S), cooling in-tube fouling, dirty and etching problem are can effectively avoid, improves unit operation economy and safety.
Description of the drawings
The condenser cooling water system arrangement schematic diagram of Fig. 1 embodiments 1.
The condenser cooling water system arrangement schematic diagram of Fig. 2 embodiments 2.
In figure, 1 is the first cooling water inlet pipe road, and 2 be the second cooling water inlet pipe road, and 3 be the first cooling water outlet pipe
Road, 4 be the second cooling water outlet pipe road, and 5 be the first water inlet butterfly valve, and 6 be the second water inlet butterfly valve, and 7 be the first water outlet butterfly valve, and 8 are
Second water outlet butterfly valve, 9 be condenser, and 10 be connecting pipe, and 11 be connection butterfly valve.
Specific embodiment
The utility model is described in further details with reference to example.
Referring to Fig. 1 and Fig. 2, the utility model includes two groups of cooling water pipelines and condenser 9, condenser 9 and two groups of coolings
Waterpipe is connected, and every group of cooling water pipeline includes a cooling water inlet pipe road and a corresponding cooling water outlet pipe
Road is provided with connecting pipe 10 between any one group of cooling water inlet pipe road and another group of cooling water outlet pipe road, and
Connection dish valve 11 is provided on connecting pipe 10.It is both provided on each cold water inlet road in two groups into water butterfly valve, two groups
In each cooling water outlet pipe road on be both provided with water outlet butterfly valve, and connecting pipe 10 is arranged on corresponding water inlet butterfly valve or goes out
Between water butterfly valve and condenser 9.
Embodiment 1
Referring to Fig. 1, the utility model includes a condenser 9 and two groups of cooling water pipelines, one group of cooling water pipeline packet
The first cooling water inlet pipe road 1 and corresponding first cooling water outlet pipe road 3 are included, another group includes the second cooling water inlet pipe road
2 and the second cooling water outlet pipe road 4, the first water inlet butterfly valve 5 is provided on the first cooling water inlet pipe road 1, and the first cooling water goes out
The first water outlet butterfly valve 7 is provided on waterpipe 3, the second water inlet butterfly valve 6 is provided on the second cooling water inlet pipe road 2, second is cold
But the second water outlet butterfly valve 8 is provided on water outlet conduit 4, and 10 one end of connecting pipe is arranged on the second water inlet butterfly valve 6 with coagulating
On pipeline between vapour device, the other end is arranged on the pipeline between the first water outlet butterfly valve 7 and condenser.
Or 10 one end of connecting pipe is arranged on the pipeline between the first water inlet butterfly valve 5 and condenser, other end setting
On pipeline between the second water outlet butterfly valve 8.
When circulating cooling water flow is larger, condenser cooling water system keeps the operation of double-flow cooling water system, at this time
Connection butterfly valve 11 is closed, and the first water inlet water inlet butterfly valve 6, first of butterfly valve 5, second of condenser is discharged butterfly valve 7, second and is discharged butterfly valve
8 keep standard-sized sheet；
When circulating cooling water flow is smaller, connection butterfly valve 11 is opened, is then shut off the first water outlet 7 He of butterfly valve of condenser
Second water inlet butterfly valve 6, realizes the operation of four flow cooling water system of condenser.
Embodiment 2
Referring to Fig. 2, the utility model includes two condensers 9, wherein, be provided on a condenser the first cooling water into
1 and second cooling water inlet pipe road 2 of waterpipe is provided with 3 He of the first cooling water outlet pipe road on another condenser accordingly
Second cooling water outlet pipe road 4 is connected by pipeline between two condensers, the second cooling water inlet pipe road 2 and the first cooling
Connecting pipe 10 is provided between water outlet conduit 3, and connection butterfly valve 11 is provided on connecting pipe 10；First cooling water into
The first water inlet butterfly valve 5 is provided on waterpipe 1, the first water outlet butterfly valve 7 is provided on the first cooling water outlet pipe road 3, second is cold
But the second water inlet butterfly valve 6 is provided on water inlet channel 2, the second water outlet butterfly valve 8 is provided on the second cooling water outlet pipe road 4.
One end of connecting pipe 10 is arranged on the pipeline between the second water inlet butterfly valve 6 and condenser, and the other end is arranged on the first water outlet
On pipeline between butterfly valve 7 and condenser.
10 one end of connecting pipe is arranged on the pipeline between the first water inlet butterfly valve 5 and condenser, and the other end is arranged on
On pipeline between two water outlet butterfly valves 8.
When circulating cooling water flow is larger, condenser cooling water system keeps the operation of double-flow cooling water system, at this time
Connection butterfly valve 11 is closed, and the first water inlet water inlet butterfly valve 6, first of butterfly valve 5, second of condenser is discharged butterfly valve 7, second and is discharged butterfly valve
8 keep standard-sized sheet；
When circulating cooling water flow is smaller, connection butterfly valve 11 is opened, is then shut off the first water outlet 7 He of butterfly valve of condenser
Second water inlet butterfly valve 6, realizes the operation of four flow cooling water system of condenser.
Or connecting pipe 10 can also be arranged on the first cooling water inlet pipe road 1 and the second cooling water outlet pipe road 4 it
Between.
The condenser recirculated cooling water of the condenser double-flow cooling water system is intake respectively by the first cooling water
1 and second cooling water inlet pipe road 2 of pipeline enters condenser 9, then cold by the first cooling water outlet pipe road 3 and second respectively
But water outlet conduit 4 flows out condenser；It is respectively provided in condenser inlet and outlet pipes into water butterfly valve and water outlet butterfly valve；
Connecting pipe 10 and connection butterfly valve are set between the first cooling water outlet pipe of condenser road 3 and the second cooling water inlet pipe road 2
11；Connection butterfly valve 11 is opened in actual motion, the water inlet butterfly valve 6 and first of condenser second is closed and is discharged butterfly valve 7, realize condenser
The operation of four flow cooling water systems is changed to by double-flow cooling water system.
Cooling Tubes of Condenser design discharge is generally 2.2m/s or so, and the cooling water system generally configuration two of condenser follows
Ring water pump (indivedual three water circulating pumps of crew qiting), cooling water flow is design discharge when general two water circulating pumps are run,
Cooling tube design current velocity (about 2.2m/s) is corresponded at this time.
The flow being previously mentioned in the utility model is larger, when referring to that cooling water flow is more than 1.4m/s, cooling tube stream at this time
The nearly 2.2m/s of quick access is typically also flow when referring to two water circulating pump operations.
Flow is smaller to refer to cooling water flow compared with design discharge is significantly relatively low, cooling tube flow velocity is significantly relatively low compared with design current velocity
When, the specific quantitative target of the smaller neither one of cooling water flow, general cooling tube flow velocity is believed that flow less than 1.4m/s
Smaller state, if being divided by the water circulating pump method of operation, water circulating pump separate unit operating status just can be referred to as the smaller shape of flow
State, if water circulating pump has, high low speed is configured or frequency converter, separate unit water circulating pump high-speed cruising, separate unit water circulating pump low speed are transported
Corresponding flow can be referred to as the smaller state of flow when row, separate unit water circulating pump converting operation.
Under the operating mode that Steam Turbine load is relatively low, circulating cooling coolant-temperature gage is relatively low, with subtracting for circulating cooling water flow
It is few, by the operation of four flow cooling water system of condenser, it is cold can effectively to solve the condenser caused by cooling water flow velocity is low
But easy scale problems are managed, for being configured for the unit of rubber ball cleaning system, is conducive to putting into operation for rubber ball cleaning system, is conducive to
Fouling, dirty, etching problem in Cooling Tubes of Condenser are solved, improves unit operation economy and safety.
A kind of application method of four flow cooling water system of condenser provided by the utility model, includes the following steps：
(1) when circulating cooling water flow is larger, condenser cooling water system keeps the operation of double-flow cooling water system,
Connection butterfly valve 11 is closed at this time, and the water inlet water inlet butterfly valve 6, first of butterfly valve 5, second of condenser first is discharged butterfly valve 7, second and is discharged butterfly
Valve 8 keeps standard-sized sheet；
(2) when circulating cooling water flow is smaller, connection butterfly valve 11 is opened, condenser first is then shut off and is discharged butterfly valve 7
With the second water inlet butterfly valve 6.
By taking certain 300MW Steam Turbine as an example, the condenser of the crew qiting is double-flow cooling water system, and configuration two follows
Ring water pump, condenser circulating cooling water flow is 38300m during two water circulating pump high speed parallel runnings3/ h, Cooling Tubes of Condenser
Interior flow velocity is 2.207m/s；Condenser circulating cooling water flow is 22100m during separate unit water circulating pump high-speed cruising3/ h, condensing
Device flow velocity within cooling tubes are 1.274m/s；Condenser circulating cooling water flow is 17500m when separate unit water circulating pump low speed is run3/
H, flow velocity is 1.009m/s in Cooling Tubes of Condenser.
When water circulating pump list pumps high-speed cruising or single pump low speed operation, flow velocity is far below condensing in Cooling Tubes of Condenser
Device cooling tube design current velocity (2.2m/s) be easy to cause cooling in-tube fouling, dirty and etching problem, influences unit safety economy
Operation.
(1) be set between the first cooling water outlet pipe road 3 of condenser and the second cooling water inlet pipe road 2 communicating pipe
Road 10 and connection butterfly valve 11；
(2) when water circulating pump list pumps high-speed cruising or single pump low speed operation, connection butterfly valve 11 is opened, is then shut off coagulating
Vapour device first is discharged the water inlet butterfly valve 6 of butterfly valve 7 and second, realizes the operation of four flow cooling water system of condenser.Single pump high speed at this time
It is respectively 2.121m/s and 1.752m/s that operation and single pump low speed, which run flow velocity in corresponding Cooling Tubes of Condenser, and condenser cools down
Velocity in pipes close to cooling tube design current velocity (2.2m/s), can effectively avoid cooling in-tube fouling, dirty and etching problem, carry
High unit operation economy and safety.
The utility model on condenser side outlet conduit and opposite side inlet channel by installing connecting pipe and company additional
Logical dish valve by butterfly valve of intaking to connection dish valve and condenser, the switching manipulation for being discharged butterfly valve, realizes the cooling of condenser double-flow
When circulating cooling water flow is relatively low, condenser double-flow is cooled down for switching between water system and four flow cooling water systems
Water system be switched to four flow cooling water systems operation, improve Cooling Tubes of Condenser in cooling water flow velocity, can effectively solve because
The easy scale problems of Cooling Tubes of Condenser caused by cooling water flow velocity is low for being configured for the unit of rubber ball cleaning system, improve
In Cooling Tubes of Condenser after cooling water flow velocity, be conducive to putting into operation for rubber ball cleaning system, advantageously account in Cooling Tubes of Condenser
Fouling, dirty, etching problem improve unit operation economy and safety.
Claims (5)
1. a kind of four flow cooling water system of condenser, which is characterized in that including two groups of cooling water pipelines and condenser (9), coagulate
Vapour device (9) is connected with two groups of cooling water pipelines, and every group of cooling water pipeline includes a cooling water inlet pipe road and a phase
The cooling water outlet pipe road answered is provided between any one group of cooling water inlet pipe road and another group of cooling water outlet pipe road
Connecting pipe (10), and connection butterfly valve (11) is provided on connecting pipe (10)；On each cold water inlet road in two groups
It is both provided with into water butterfly valve, water outlet butterfly valve, and connecting pipe is both provided on each cooling water outlet pipe road in two groups
(10) one end is arranged between water butterfly valve and condenser (9), and the other end is arranged between water outlet butterfly valve and condenser (9).
2. four flow cooling water system of a kind of condenser according to claim 1, which is characterized in that condenser (9) is electricity
It stands steam turbine double-flow condenser.
3. four flow cooling water system of a kind of condenser according to claim 1, which is characterized in that including a condenser
(9) and two groups of cooling water pipelines, one group of cooling water pipeline include the first cooling water inlet pipe road (1) and corresponding first cooling
Water outlet conduit (3), another group includes the second cooling water inlet pipe road (2) and corresponding second cooling water outlet pipe road (4), the
The first water inlet butterfly valve (5) is provided on one cooling water inlet pipe road (1), first is provided on the first cooling water outlet pipe road (3)
Butterfly valve (7) is discharged, the second water inlet butterfly valve (6), the second cooling water outlet pipe road are provided on the second cooling water inlet pipe road (2)
(4) the second water outlet butterfly valve (8) is provided on；Connecting pipe (10) one end is arranged on the second water inlet butterfly valve (6) between condenser
Pipeline on, the other end is arranged on the first water outlet butterfly valve (7) on the pipeline between condenser；Connecting pipe is provided on (10)
Connect butterfly valve (11).
4. four flow cooling water system of a kind of condenser according to claim 1, which is characterized in that including two condensers
(9), wherein, the first cooling water inlet pipe road (1) and the second cooling water inlet pipe road (2) are provided on a condenser, it is another
The first cooling water outlet pipe road (3) and the second cooling water outlet pipe road (4), two condensers are provided on platform condenser accordingly
Between be connected by pipeline, be provided with communicating pipe between the second cooling water inlet pipe road (2) and the first cooling water outlet pipe road (3)
Road (10), and connection butterfly valve (11) is provided on connecting pipe (10)；First is provided on first cooling water inlet pipe road (1)
It intakes butterfly valve (5), is provided with the first water outlet butterfly valve (7), the second cooling water inlet pipe road on the first cooling water outlet pipe road (3)
(2) the second water inlet butterfly valve (6) is provided on, the second water outlet butterfly valve (8) is provided on the second cooling water outlet pipe road (4)；Connection
One end of pipeline (10) is arranged on the second water inlet butterfly valve (6) on the pipeline between condenser, and the other end is arranged on the first water outlet
Butterfly valve (7) is on the pipeline between condenser.
5. a kind of four flow cooling water system of condenser according to claim 3 or 4, which is characterized in that
When circulating cooling water flow velocity is more than 1.4m/s, connection butterfly valve (11) is closed, the first water inlet butterfly valve (5) of condenser,
Second water inlet butterfly valve (6), the first water outlet butterfly valve (7), the second water outlet butterfly valve (8) keep standard-sized sheet；
When circulating cooling water flow velocity is less than 1.4m/s, connection butterfly valve (11) is opened, is then shut off the first water outlet butterfly of condenser
Valve (7) and the second water inlet butterfly valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178066.5U CN207487438U (en) | 2017-09-14 | 2017-09-14 | A kind of four flow cooling water system of condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721178066.5U CN207487438U (en) | 2017-09-14 | 2017-09-14 | A kind of four flow cooling water system of condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207487438U true CN207487438U (en) | 2018-06-12 |
Family
ID=62481731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721178066.5U Expired - Fee Related CN207487438U (en) | 2017-09-14 | 2017-09-14 | A kind of four flow cooling water system of condenser |
Country Status (1)
| Country | Link |
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| CN (1) | CN207487438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462082A (en) * | 2017-09-14 | 2017-12-12 | 西安西热节能技术有限公司 | A kind of flow cooling water system of condenser four and application method |
-
2017
- 2017-09-14 CN CN201721178066.5U patent/CN207487438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462082A (en) * | 2017-09-14 | 2017-12-12 | 西安西热节能技术有限公司 | A kind of flow cooling water system of condenser four and application method |
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| CF01 | Termination of patent right due to non-payment of annual fee |