CN110344924A - A kind of cooling water system maintenance off-line system and its application method - Google Patents
A kind of cooling water system maintenance off-line system and its application method Download PDFInfo
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- CN110344924A CN110344924A CN201910468772.0A CN201910468772A CN110344924A CN 110344924 A CN110344924 A CN 110344924A CN 201910468772 A CN201910468772 A CN 201910468772A CN 110344924 A CN110344924 A CN 110344924A
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- cooling water
- water
- pipeline
- water system
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0276—Draining or purging
Abstract
The invention belongs to technical field of nuclear power, more particularly to a kind of cooling water system maintenance off-line system and its application method, the maintenance of the cooling water system of diesel emergency generating set for nuclear power station, including be equipped with high temperature water inlet (2), low temperature water inlet (3), moisturizing Pump Suction Nozzle (4) water tank (1), high temperature water inlet (2) imports water tank (1) for being connected to the high-temperature water system drainage point of cooling water system, by the cooling water of the high temperature of cooling water system；Low temperature water inlet (3) imports water tank (1) for being connected to the low temperature water system drainage point of cooling water system, by the cooling water of the low temperature of cooling water system；It further include the small pump (17) for being connected to moisturizing Pump Suction Nozzle (4) and cooling water system, for the cooling water in water tank (1) to be injected cooling water system.The present invention can be reduced diesel emergency generating set and be in the time of down state, improve nuclear power station economic benefit, can ensure nuclear safety from depth defense angle.
Description
Technical field
The invention belongs to technical field of nuclear power, and in particular to off-line system and its user are used in a kind of maintenance of cooling water system
Method.
Background technique
Diesel generating set is with its high reliability, independence, good starting performance and high thermal efficiency, frequently as nuclear power
It stands emergency power supply.Under any predicted operation event or design basis accident, when nuclear power station loss of off-site power Shi Weiqi is mentioned
For necessary power supply, diesel emergency generating set is the important component of nuclear power station depth defense.
Cooling water system is important one of the auxiliary system of diesel generating set, it is ensured that diesel generating set has good
Reliability is started and run, is made of high-temperature water system and low temperature water system.High-temperature water system is for cooling down cylinder of diesel engine, gas
Cylinder sleeve, exhaust valve casing, fuel injector and pressurized air etc., low temperature water system be used for cool down turbocharger outlet combustion air and
Lubricating oil.
When the device fails such as diesel engine body component, cooling water system air-cooled radiator or leakage, need to be isolated
Entire cooling water system whole cooling waters in vacant duct side by side, carry out water-filling to cooling water system again after the completion of to be repaired.Entirely
Maintenance cycle is long, and the process for especially filling draining is time-consuming, cumbersome.
When nuclear power unit is under power mode of operation, corrective caused by random fault is repaired, an emergency diesel-oil
The time that allows to stop to use as a servant of generating set is 3 days, and it is more than this that the time that allows to stop to use as a servant of two diesel emergency generating sets, which is 2 hours,
Time limit reactor will stop transport and drop back to safe condition.If diesel emergency generating set cooling water system is in Power operation mould
Random fault occurs under formula and maintenance can not be completed in 3 days, unit will be forced shutdown.It not only will seriously affect nuclear power in this way
The economic benefit stood, and certain transient state risk can be introduced during shutdown and restarting.For projected life 60
The nuclear power unit in year, due to ageing equipment etc., the frequency that random fault occurs for cooling water system was possible in the phase in unit longevity
Back segment increases.Therefore, the length of diesel generating set cooling water system time between overhauls(TBO), for nuclear power station economic benefit or even
Nuclear safety has great significance.
For the problem that the current diesel generating set cooling water system time between overhauls(TBO) is long, effective solution is not yet proposed at present
Scheme.
Summary of the invention
For the problem that the current diesel emergency generating set cooling water system time between overhauls(TBO) is long, it is an object of the invention to mention
For a kind of maintenance off-line system, individually isolation maintenance can be carried out to diesel emergency generating set cooling water system, is reduced
Cooling water is filled with and efflux time, substantially shortens maintenance cycle, so that reducing diesel emergency generating set is in down state
Time.
To achieve the above objectives, the technical solution adopted by the present invention is that a kind of cooling water system maintenance off-line system, is used
In the maintenance of the cooling water system of the diesel emergency generating set of nuclear power station, wherein including being equipped with high temperature water inlet, water at low temperature enters
The water tank of mouth, moisturizing Pump Suction Nozzle, the high temperature water inlet is for the high-temperature water system drainage point with the cooling water system
The cooling water of the high temperature of the cooling water system is imported the water tank by connection；The low temperature water inlet be used for it is described cold
But the low temperature water system drainage point connection of water system, imports the water tank for the cooling water of the low temperature of the cooling water system；
It further include the small pump for being connected to the moisturizing Pump Suction Nozzle and the cooling water system, for by the cooling water in the water tank
Inject the cooling water system.
Further, water inlet one end of the small pump is sucked by the third pipeline and the small pump for being equipped with third valve
Mouth is connected, and water outlet one end of the small pump is connected by being equipped with the 4th pipeline of the 4th valve with the cooling water system, institute
The water outlet one end for stating the 4th pipeline is equipped with third quick coupling, and the third quick coupling is for the note with the cooling water system
The mouth of a river is connected.
It further, further include the 5th pipeline as water supply line, the 5th pipeline is equipped with the 5th valve, and the described 5th
Water inlet one end of pipeline be equipped with the 4th quick coupling, water outlet one end of the 5th pipeline be connected to the third valve with it is described
On the third pipeline between water inlet one end of small pump.
Further, water filling port is additionally provided at the top of the water tank；It further include the 6th pipeline as waterflood-transmission line, described
Six pipelines are equipped with the 6th valve, and water inlet one end of the 6th pipeline is connected to the water outlet of the 4th valve and the small pump
On the 4th pipeline between one end, water outlet one end of the 6th pipeline is connected with the water filling port.
It further, further include the 7th pipeline as discharge pipe line, the 7th pipeline is equipped with the 7th valve, and the described 7th
Water outlet one end of pipeline is equipped with the 5th quick coupling, and water inlet one end of the 7th pipeline is connected to the water inlet of the 6th pipeline
On the 6th pipeline between one end and the 6th valve.
Further,
The high temperature water inlet is equipped with first pipe, and the first pipe is equipped with the first valve, the first pipe
One end intake equipped with the first quick coupling, water outlet one end of the first pipe is connected with the high temperature water inlet；
The low temperature water inlet is equipped with second pipe, and the second pipe is equipped with the second valve, the second pipe
One end intake equipped with the second quick coupling, water outlet one end of the second pipe is connected with the low temperature water inlet.
Further, the bottom of storage tank is additionally provided with relief outlet, and the relief outlet is equipped with the 8th pipeline, the 8th pipe
Road is equipped with the 8th valve, and the 8th valve is used to control the closing and unlatching of the relief outlet.
Further, gas vent and maintenance manhole are additionally provided at the top of the water tank, the water tank is located at described cold
But below water system.
Further, total water loading amount of the volume of the water tank not less than the cooling water system or the water tank
Volume can satisfy the water loading amount of the equipment component and pipeline that accommodate the cooling water system；The lift of the small pump meets
To the requirement of the cooling water system moisturizing.
Further, first quick coupling, the second quick coupling, third quick coupling, the 4th quick coupling, the 5th fast
Quick coupling takes anti-foreign matter measure, first valve, the second valve, third valve, the 4th valve, the 5th valve, the 6th
Valve, the 7th valve, the 8th valve are normally closed manual ball valve；All valves, quick coupling, pipeline and the water storage
The security level of case is non-nuclear safety grade.
To achieve the above objectives, the invention also discloses a kind of uses of above-mentioned cooling water system maintenance off-line system
Method includes the following steps:
Step S1, before cooling water system is overhauled, by the height of first quick coupling and the cooling water system
The connection of Water heating system drainage point makes the cooling water of the high temperature of the cooling water system import the water tank；It is fast by described second
Quick coupling is connected to the low temperature water system drainage point of the cooling water system, leads the cooling water of the low temperature of the cooling water system
Enter the water tank；
Step S2, after the completion of cooling water system maintenance, by the note of the third quick coupling and the cooling water system
Cooling water in the water tank is injected the cooling water system by mouth of a river connection.
Further, in step S1's finally, further including disconnecting first quick coupling and the cooling water system
High-temperature water system drainage point connection, the low temperature water system for disconnecting second quick coupling and the cooling water system drains
The connection of point.
The beneficial effects of the present invention are:
1. the present invention can carry out the cooling water system of diesel emergency generating set after taking above-mentioned technical proposal
Individually isolation maintenance, reduction cooling water is filled with and efflux time, substantially shortens the maintenance cycle of cooling water system, answers to reduce
Anxious diesel generating set is in the time of down state.Therefore, the present invention can not only improve nuclear power station economic benefit, moreover it is possible to
Nuclear safety is ensured from depth defense angle.Especially in the back segment of phase in unit longevity, it is contemplated that the reasons such as ageing equipment cause random event
Hinder the raising of frequency, bring beneficial effect of the present invention will also be further amplified.
2. simultaneously, the present invention is off-line system, entire to overhaul under diesel emergency generating set stand-by heat and operating condition
Entity does not occur with the cooling water system of diesel emergency generating set with off-line system to connect.On the one hand correspondence of the present invention is ensured
Anxious diesel generating set will not have any impact, and on the other hand, present invention can be suitably applied to the diesel generating set of different model,
And will not influence original cooling water system design, have good compatibility and applicability.
3. the present invention can facilitate personnel carry out cooling water system maintenance relevant operation, be convenient for draining, water-filling and
Adjust the operation such as cooling water quality.
Detailed description of the invention
Fig. 1 is the schematic diagram of cooling water system maintenance off-line system described in the specific embodiment of the invention；
In figure: 1- water tank, 2- high temperature water inlet, 3- low temperature water inlet, 4- moisturizing Pump Suction Nozzle, 5- water filling port, 6- are put
Drain port, 7- gas vent, 8- maintenance manhole, 9- first pipe, the first valve of 10-, the first quick coupling of 11-, 12- second are managed
Road, the second valve of 13-, the second quick coupling of 14-, 15- third pipeline, 16- third valve, 17- small pump, the 4th pipeline of 18-,
The 4th valve of 19-, 20- third quick coupling, the 5th pipeline of 21-, the 5th valve of 22-, the 4th quick coupling of 23-, 24- the 6th are managed
Road, the 6th valve of 25-, the 7th pipeline of 26-, the 7th valve of 27-, the 5th quick coupling of 28-, the 8th pipeline of 29-, the 8th valve of 30-
Door.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, off-line system (abbreviation off-line system) is used in a kind of cooling water system maintenance provided by the invention, it is used for
The maintenance of the cooling water system of the diesel emergency generating set of nuclear power station, the system include water tank 1 and small pump 17, water tank
1 is located at the lower section of the cooling water system of diesel emergency generating set.Off-line system is in diesel generating set stand-by heat and operation work
Under condition entity connection is not carried out with cooling water system.
Water tank 1 be equipped with high temperature water inlet 2, low temperature water inlet 3, moisturizing Pump Suction Nozzle 4, high temperature water inlet 2 be used for it is cold
But the high-temperature water system drainage point connection of water system, imports water tank 1 for the cooling water of the high temperature of cooling water system.High-temperature water enters
Mouth 2 is equipped with first pipe 9, and first pipe 9 is equipped with the first valve 10, and water inlet one end of first pipe 9 is equipped with the first fast quick access
First 11, water outlet one end of first pipe 9 is connected with high temperature water inlet 2.Low temperature water inlet 3 is for the water at low temperature with cooling water system
The cooling water of the low temperature of cooling water system is imported water tank 1 by the connection of System drainage point.Low temperature water inlet 3 is equipped with the second pipe
Road 12, second pipe 12 are equipped with the second valve 13, and water inlet one end of second pipe 12 is equipped with the second quick coupling 14, second pipe
12 water outlet one end is connected with low temperature water inlet 3.
Small pump 17 is connected to moisturizing Pump Suction Nozzle 4 and cooling water system, for the cooling water in water tank 1 to be injected cooling
Water system.Water inlet one end of small pump 17 is connected by being equipped with the third pipeline 15 of third valve 16 with moisturizing Pump Suction Nozzle 4, is mended
Water outlet one end of water pump 17 is connected by being equipped with the 4th pipeline 18 of the 4th valve 19 with cooling water system, and the 4th pipeline 18 goes out
Water one end is equipped with third quick coupling 20, and third quick coupling 20 with the water filling port of cooling water system for being connected；Small pump 17
Lift meet after maintenance is completed to the pipeline of cooling water system and the requirement of equipment moisturizing.
1 bottom of water tank is additionally provided with relief outlet 6, and relief outlet 6 is equipped with the 8th pipeline 29, and the 8th pipeline 29 is equipped with the 8th valve
Door 30, the 8th valve 30 are used to control the closing and unlatching of relief outlet 6.The top of water tank 1 is additionally provided with gas vent 7 and maintenance is used
Manhole 8.The pipe of cooling water system when maintenance is individually isolated not less than the cooling water system of diesel generating set in the volume of water tank 1
The total water loading amount or 1 volume of water tank of road and equipment can suitably reduce according to limiting factors such as space, antidetonations, meet and accommodate
The equipment component of cooling water system and the water loading amount of pipeline.
It further include the 5th pipeline 21 as water supply line, the 5th pipeline 21 is equipped with the 5th valve 22, the 5th pipeline 21
The one end that intakes is equipped with the 4th quick coupling 23, water outlet one end of the 5th pipeline 21 be connected to third valve 16 and small pump 17 into
On third pipeline 15 between water one end.
Water filling port 5 is additionally provided at the top of water tank 1；It further include the 6th pipeline 24 as waterflood-transmission line, the 6th pipeline 24 is set
There is the 6th valve 25, water inlet one end of the 6th pipeline 24 is connected to the between the 4th valve 19 and water outlet one end of small pump 17
On four pipelines 18, water outlet one end of the 6th pipeline 24 is connected with water filling port 5.
It further include the 7th pipeline 26 as discharge pipe line, the 7th pipeline 26 is equipped with the 7th valve 27, the 7th pipeline 26
It is discharged one end and is equipped with the 5th quick coupling 28, water inlet one end of the 7th pipeline 26 is connected to water inlet one end and the of the 6th pipeline 24
On the 6th pipeline 24 between six valves 25.
First quick coupling 11, the second quick coupling 14, third quick coupling 20, the 4th quick coupling the 23, the 5th are quickly
Connector 28 takes anti-foreign matter measure, it is ensured that entire off-line system is not contaminated during non-maintenance, can be fast in the maintenance stage
Speed comes into operation, and guarantees that whole media of cooling water system discharge are reusable after maintenance.
First valve 10, the second valve 13, third valve 16, the 4th valve 19, the 5th valve 22, the 6th valve 25,
Seven valves 27, the 8th valve 30 are normally closed manual ball valve, it is ensured that under diesel emergency generating set stand-by heat and operating condition,
The interface of pipeline locating for these valves is in isolation.
All valves of off-line system, quick coupling, pipeline and water tank 1 security level be non-nuclear safety grade.
By pipe arrangement, the drainage point of the high-temperature water system for being located proximate to cooling water system of the first quick coupling 11；
The drainage point of the low temperature water system for being located proximate to cooling water system of second quick coupling 14；The position of third quick coupling 20 is leaned on
The water filling port of the water treatment case of nearly cooling water system；4th quick coupling 23 is adjacent with the 5th quick coupling 28, is located at operation layer
The easy-operating position of personnel.
Under diesel emergency generating set stand-by heat and operating condition, off-line system does not carry out entity company with cooling water system
It connects.The routine test of small pump 17 can be carried out by the 6th pipeline 24 (waterflood-transmission line), it is ensured that small pump 17 can be normal when maintenance
Operation.
The invention also discloses the application methods of above-mentioned cooling water system maintenance off-line system, include the following steps:
Step S1, before cooling water system is overhauled, by the high temperature water system of the first quick coupling 11 and cooling water system
Drainage point unite by hose connection, so that the cooling water of the high temperature of cooling water system is imported (the i.e. emptying high temperature of water tank 1 by gravity
Cooling water in water system)；Second quick coupling 14 is connected to the low temperature water system drainage point of cooling water system by hose,
The cooling water of the low temperature of cooling water system is set to import water tank 1 (cooling water i.e. in emptying low temperature water system) by gravity；Also
Connection including disconnecting the first quick coupling 11 and the high-temperature water system drainage point of cooling water system, disconnects the second quick coupling 14
With the connection of the low temperature water system drainage point of cooling water system；
Step S2 leads to third quick coupling 20 and the water filling port of cooling water system after the completion of cooling water system maintenance
Crossing hose connection, (water filling port of cooling water system can be the water treatment case of cooling water system, high-temperature water expansion tank or low temperature
The water filling port of water expansion tank), cooling water (cooling water that cooling water system empties before maintenance) injection in water tank 1 is cold
But water system makes to complete entire cooling water system maintenance full of cooling water in the pipeline of cooling water system, be diesel generating set
Operation prepare.
In addition, the 5th can be passed through if you need to adjust the water in water tank 1, addition chemical agent or supplement anticorrosion antifreeze liquid
Pipeline 21 (water supply line) carries out corresponding operating in the 4th quick coupling 23 of operation layer.If you need in all replacement water tanks 1
Cooling water can empty most of cooling water in the 5th quick coupling 28 of operation layer by the 7th pipeline 26 (discharge pipe line), and
Ponding is emptied by relief outlet 6.Meet the cooling water of system requirements by the replacement of the 5th pipeline 21 (water supply line) again.
Device of the present invention is not limited to embodiment described in specific embodiment, those skilled in the art according to
Technical solution of the present invention obtains other embodiments, also belongs to the scope of the technical innovation of the present invention.
Claims (12)
1. a kind of cooling water system maintenance off-line system, the cooling water system of the diesel emergency generating set for nuclear power station
Maintenance, it is characterized in that: include be equipped with high temperature water inlet (2), low temperature water inlet (3), moisturizing Pump Suction Nozzle (4) water tank (1),
The high temperature water inlet (2) with the high-temperature water system drainage point of the cooling water system for being connected to, by the cooling water system
The cooling water of high temperature import the water tank (1)；The low temperature water inlet (3) is for the water at low temperature with the cooling water system
The cooling water of the low temperature of the cooling water system is imported the water tank (1) by the connection of System drainage point；It further include described in connection
The small pump (17) of moisturizing Pump Suction Nozzle (4) and the cooling water system, for injecting the cooling water in the water tank (1)
The cooling water system.
2. cooling water system maintenance off-line system as described in claim 1, it is characterized in that: the water inlet of the small pump (17)
One end is connected by being equipped with the third pipeline (15) of third valve (16) with the moisturizing Pump Suction Nozzle (4), the small pump
(17) water outlet one end is connected by being equipped with the 4th pipeline (18) of the 4th valve (19) with the cooling water system, and the described 4th
Water outlet one end of pipeline (18) is equipped with third quick coupling (20), and the third quick coupling (20) is used for and the cooling water system
The water filling port of system is connected.
3. cooling water system maintenance off-line system as claimed in claim 2, it is characterized in that: further including as water supply line
5th pipeline (21), the 5th pipeline (21) are equipped with the 5th valve (22), and water inlet one end of the 5th pipeline (21) is equipped with
4th quick coupling (23), water outlet one end of the 5th pipeline (21) are connected to the third valve (16) and the small pump
(17) on the third pipeline (15) between water inlet one end.
4. cooling water system maintenance off-line system as claimed in claim 3, it is characterized in that: at the top of the water tank (1) also
Equipped with water filling port (5)；It further include the 6th pipeline (24) as waterflood-transmission line, the 6th pipeline (24) is equipped with the 6th valve
(25), water inlet one end of the 6th pipeline (24) is connected to the water outlet one of the 4th valve (19) and the small pump (17)
On the 4th pipeline (18) between end, water outlet one end of the 6th pipeline (24) is connected with the water filling port (5).
5. cooling water system maintenance off-line system as claimed in claim 4, it is characterized in that: further including as discharge pipe line
7th pipeline (26), the 7th pipeline (26) are equipped with the 7th valve (27), and water outlet one end of the 7th pipeline (26) is equipped with
5th quick coupling (28), water inlet one end of the 7th pipeline (26) be connected to water inlet one end of the 6th pipeline (24) with
On the 6th pipeline (24) between 6th valve (25).
6. cooling water system maintenance off-line system as claimed in claim 5, it is characterized in that:
The high temperature water inlet (2) is equipped with first pipe (9), and the first pipe (9) is equipped with the first valve (10), and described the
Water inlet one end of one pipeline (9) is equipped with the first quick coupling (11), water outlet one end of the first pipe (9) and the high-temperature water
Entrance (2) is connected；
The low temperature water inlet (3) is equipped with second pipe (12), and the second pipe (12) is equipped with the second valve (13), described
Water inlet one end of second pipe (12) be equipped with the second quick coupling (14), water outlet one end of the second pipe (12) with it is described low
Warm water entrance (3) is connected.
7. cooling water system maintenance off-line system as claimed in claim 6, it is characterized in that: the water tank (1) bottom is also
Equipped with relief outlet (6), the relief outlet (6) is equipped with the 8th pipeline (29), and the 8th pipeline (29) is equipped with the 8th valve
(30), the 8th valve (30) is used to control the closing and unlatching of the relief outlet (6).
8. cooling water system maintenance off-line system as described in claim 1, it is characterized in that: the top of the water tank (1)
Gas vent (7) and maintenance are additionally provided with manhole (8), the water tank (1) is located at below the cooling water system.
9. cooling water system maintenance off-line system as described in claim 1, it is characterized in that: the volume of the water tank (1)
It can satisfy not less than the volume of total water loading amount of the cooling water system or the water tank (1) and accommodate the cooling water
The equipment component of system and the water loading amount of pipeline；The lift of the small pump (17), which meets to the cooling water system moisturizing, to be wanted
It asks.
10. cooling water system maintenance off-line system as claimed in claim 7, it is characterized in that: first quick coupling
(11), the second quick coupling (14), third quick coupling (20), the 4th quick coupling (23), the 5th quick coupling (28) are adopted
Take anti-foreign matter measure, first valve (10), the second valve (13), third valve (16), the 4th valve (19), the 5th valve
(22), the 6th valve (25), the 7th valve (27), the 8th valve (30) are normally closed manual ball valve；All valves, quickly
The security level of connector, pipeline and the water tank (1) is non-nuclear safety grade.
11. the cooling water system maintenance as claimed in claim 10 application method of off-line system, includes the following steps:
Step S1, before cooling water system is overhauled, by the height of the first quick coupling (11) and the cooling water system
The connection of Water heating system drainage point makes the cooling water of the high temperature of the cooling water system import the water tank (1)；By described second
Quick coupling (14) is connected to the low temperature water system drainage point of the cooling water system, makes the cold of the low temperature of the cooling water system
But water imports the water tank (1)；
Step S2, after the completion of cooling water system maintenance, by the note of third quick coupling (20) and the cooling water system
Cooling water in the water tank (1) is injected the cooling water system by mouth of a river connection.
12. the cooling water system maintenance as claimed in claim 11 application method of off-line system, it is characterized in that: in the step
Rapid S1's finally, further including the high-temperature water system drainage point for disconnecting first quick coupling (11) and the cooling water system
Connection disconnects the connection of the low temperature water system drainage point of second quick coupling (14) and the cooling water system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468772.0A CN110344924A (en) | 2019-05-31 | 2019-05-31 | A kind of cooling water system maintenance off-line system and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468772.0A CN110344924A (en) | 2019-05-31 | 2019-05-31 | A kind of cooling water system maintenance off-line system and its application method |
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| Publication Number | Publication Date |
|---|---|
| CN110344924A true CN110344924A (en) | 2019-10-18 |
Family
ID=68174533
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910468772.0A Pending CN110344924A (en) | 2019-05-31 | 2019-05-31 | A kind of cooling water system maintenance off-line system and its application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411311A (en) * | 2020-11-09 | 2021-02-26 | 国家电网有限公司 | Hydropower station pavement snow melting system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343507A (en) * | 1993-09-30 | 1994-08-30 | Westinghouse Electric Corporation | Shutdown cooling system for operation during lapse of power |
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
-
2019
- 2019-05-31 CN CN201910468772.0A patent/CN110344924A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343507A (en) * | 1993-09-30 | 1994-08-30 | Westinghouse Electric Corporation | Shutdown cooling system for operation during lapse of power |
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411311A (en) * | 2020-11-09 | 2021-02-26 | 国家电网有限公司 | Hydropower station pavement snow melting system |
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Application publication date: 20191018 |
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