CN208911573U - A kind of interim filter device of nuclear power station pump intake - Google Patents
A kind of interim filter device of nuclear power station pump intake Download PDFInfo
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- CN208911573U CN208911573U CN201821191128.0U CN201821191128U CN208911573U CN 208911573 U CN208911573 U CN 208911573U CN 201821191128 U CN201821191128 U CN 201821191128U CN 208911573 U CN208911573 U CN 208911573U
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- filter
- filter screen
- interim
- pump intake
- pipeline
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Abstract
The utility model provides a kind of interim filter device of nuclear power station pump intake, filter including being mounted on pumping intake piping road, filter screen is provided in the filter, further include: multiple conduit pipes, the water outlet side of the multiple conduit pipe one end connection filter screen, the other end connects DW system demineralized water system, backwashes for introducing demineralized water to the filter screen；Interim pipeline, described interim pipeline one end are connected to the influent side of the filter screen through small traffic ingress, and the other end is separately connected blow-off line and miniflow line by triple valve；The triple valve is used to open the miniflow line and closure blow-off line, so that the filter is in filtration condition；The triple valve is also used to open the blow-off line and closure miniflow line, to backwash to the filter.The interim filter device of pump intake provided by the utility model has backwash and dirt eliminating function, has achieved the purpose that not dismantle filter core i.e. cleanable filter, simple and practical in structure.
Description
Technical field
The utility model relates to equipment for filtering water technical field more particularly to a kind of interim filter devices of nuclear power station pump intake.
Background technique
RRI (Component cooling water system, component cooling water system) is nuclear power station cold source system
It ensures, in the debugging stage, pumping intake piping road is equipped with temporary filter (F.T.) for preventing sundries foreign matter from entering the pump housing, but runs
After a period of time, since main pipe where temporary filter (F.T.) is carbon steel pipe, anvil cinder is more, and filter screen is caused to be very easy to blocking, this
Shi Bixu carries out dismounting cleaning to filter screen.
However, the installation Bolt Torque of temporary filter (F.T.) is larger, the time for removing cleaning strainer is longer, and strainer was removed
Also need to toggle pump in journey, the work such as pump intake pipeline centering repeat, not only waste time the pass for influencing the duration
Key node also wastes a large amount of manpower and material resources, influences the engineering efficiency in entire nuclear power station debugging stage.
Utility model content
The purpose of this utility model is to provide a kind of nuclear power station pump for having backwash and dirt eliminating function regarding to the issue above
The interim filter device of entrance achievees the purpose that not remove filter core i.e. cleanable filter, improves the engineering in nuclear power station debugging stage
Efficiency.
The utility model is to provide a kind of interim mistake of nuclear power station pump intake for solving the technical solution of the above technical problem
Device is filtered, the filter including being mounted on pumping intake piping road is provided with filter screen in the filter, further includes:
Multiple conduit pipes, the multiple conduit pipe one end are connected to the water outlet side of the filter screen, the multiple diversion
The other end of pipeline connects DW system demineralized water system, backwashes for introducing demineralized water to the filter screen；
Interim pipeline, described interim pipeline one end is connected to the influent side of the filter screen through small traffic ingress, described interim
The pipeline other end is separately connected blow-off line and miniflow line by triple valve, and the triple valve is used to open the sewage pipe
Road is connected to interim pipeline and closure miniflow line, the waste water generated after the Filter Back Washing is discharged.
The above-mentioned interim filter device of nuclear power station pump intake of the utility model further include:
Differential pressure gauge, the monitoring side of the differential pressure gauge is separately positioned on the influent side and water outlet side of the filter screen, for supervising
Survey the pressure difference of the filter screen two sides.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, offered on the side wall of the filter more
It is a along its circumferentially spaced irrigating gate, and the irrigating gate is set to the water outlet side of the filter screen；The multiple aqueduct
Road is connected to each irrigating gate one-to-one correspondence.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the small traffic ingress is set to the pump
On the side wall of entrance pipe, influent side of the interim pipeline through filter screen described in the pump intake pipeline connection；
The triple valve is mounted on the interim pipeline close to the filter.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the quantity of the irrigating gate and conduit pipe
It is 8.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the blow-off line is far from the triple valve
One end connect melt pit, for the waste water generated after the Filter Back Washing to be discharged into melt pit.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, it is also equipped on each conduit pipe
Pipeline valve is used to open or is closed the conduit pipe.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the filter screen includes:
First filter screen, setting in a circular table shape, described biggish one end of first filter screen radius are mounted on the filtering
The water outlet of the water inlet of device, described lesser one end of first filter screen radius towards the filter is extended；
Second filter screen, is set in first filter screen and setting in a circular table shape, the second filter screen radius
Biggish one end is removably mounted on the end of first filter screen, the lesser one end direction of the second filter screen radius
The water inlet of the filter is extended and is connected with third filter screen, and the third filter screen is arranged in ellipsoid.
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the caliber specification of the conduit pipe is
DN50。
In the above-mentioned interim filter device of nuclear power station pump intake of the utility model, the pipe of the interim pipeline and blow-off line
Diameter specification is DN200.
Implement a kind of interim filter device of nuclear power station pump intake provided by the utility model, has the advantages that
The interim filter device of nuclear power station pump intake has backwash and dirt eliminating function, has reached and has not dismantled filter core i.e.
The purpose of cleanable filter solves many engineering problems, substantially increases engineering efficiency and compression debug time, knot
Structure is simple and practical；Meanwhile the interim filter device of nuclear power station pump intake is the temporary filter (F.T.) and small in original system design
The transformation carried out on traffic ingress, low cost can significantly reduce use cost, have a vast market foreground.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the assembling structure schematic diagram of the interim filter device of nuclear power station pump intake provided by the utility model；
Description of drawing identification:
00, pump intake pipeline；10, filter；20, conduit pipe；30, interim pipeline；40, triple valve；50, sewage pipe
Road；60, miniflow line；70, melt pit；11, filter screen；12, the first filter screen；13, the second filter screen；14, third filter screen；
15, small traffic ingress.
Specific embodiment
In order to enable those skilled in the art that the utility model is more clearly understood, below in conjunction with attached drawing and specifically
Embodiment does further detailed description to the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of interim filter device of nuclear power station pump intake, including filter
10, multiple conduit pipes 20, interim pipeline 30, triple valve 40, blow-off line 50, miniflow line 60 and differential pressure gauge (do not show
Out).
Filter 10 is mounted on pump intake pipeline 00, and filter screen 11 is provided in filter 10, wherein 11 court of filter screen
It is the influent side of filter screen to the side of 10 water inlet of filter, is the water outlet of filter screen towards the side of 10 water outlet of filter
Side；The water outlet side of multiple 20 one end of conduit pipe connection filter screens, the other end connect the DW system demineralized water system (SED) of nuclear power station, use
In diversion demineralized water to be backwashed to filter screen 11；Interim 30 one end of pipeline through small traffic ingress 15 connection filter screen into
Water side, the other end are separately connected blow-off line 50 and miniflow line 60 by triple valve 40, and blow-off line 50 is far from triple valve
40 one end is connected to melt pit 70, and the waste water for being discharged after backwashing filter 10 is discharged into melt pit 70；The differential pressure gauge
Monitoring side is separately positioned on the influent side and water outlet side of filter screen 11, for monitoring the pressure difference of 11 two sides of filter screen.
Specifically, being connected to interim pipeline 30 when pumping normal operation by the opening miniflow line 60 of triple valve 40 and closing
Blow-off line 50 is closed, filter 10 is in filtration condition and miniflow line 60 can bringing normally into operation；When the differential pressure gauge monitors
When the pressure difference of 11 two sides of filter screen is higher, i.e., filter screen 11 blocks, at this point, pump shutdown, opens sewage pipe by triple valve
Road 50 is connected to interim pipeline 30 and closure miniflow line 60, and opens conduit pipe 20 and introduce demineralized water to the progress of filter screen 11
Backwash, the waste water after backwash with welding slag can be discharged into melt pit 70 through blow-off line 50.
Therefore, the interim filter device of nuclear power station pump intake provided in this embodiment remains the interim filtering of original system design
The conventional filtration function of device, while backwash and dirt eliminating function but also with filter screen, reach and do not remove filtering i.e. capable of washing
The purpose of device, it is simple and practical in structure.
Small traffic ingress 15 is set on the side wall of pump intake pipeline 00, and interim pipeline 30 was connected to through pump intake pipeline 00
The influent side of strainer 11, and triple valve 40 is mounted on interim pipeline 30 close to filter 10, can be improved the row of filter 10
Put effect.
It should be noted that small traffic ingress 15 is the design of original pump intake pipeline 00, it is used to that miniflow line to be installed,
To protect water pump to avoid phenomena such as vibration, fever occurs.And interim pipeline 30 provided by the utility model is mounted on small flow and enters
On mouth 15, miniflow line is mounted on the end of interim pipeline 30 by triple valve 40, and small stream can be realized by manually controlling
Switching between buret line 60 and blow-off line 50 uses, and does not influence the use of former miniflow line 60, and be not necessarily to other aperture,
Installation cost can be substantially reduced, it is simple and practical in structure.
Further, it offers multiple along its circumferentially spaced irrigating gate on the side wall of filter 10, and described draws
The mouth of a river is set to the water outlet side of filter screen 11, and multiple conduit pipes 20 are connected to each irrigating gate one-to-one correspondence, and are drawn described in warp
The water outlet side of mouth of a river connection filter screen 11.In the present embodiment, the quantity of conduit pipe 20 and the irrigating gate is 8, to reach
To optimal backwash effect.
It is also equipped with pipeline valve (not shown) on each conduit pipe 20, is used to open or is closed conduit pipe 20.This
In embodiment, each 20 independent control of conduit pipe can adjust demineralized water by controlling the unlatching quantity of conduit pipe 20
Inflow, it is simple and easy.
In the present embodiment, the caliber specification (nominal diameter) of conduit pipe 20 is DN50, the pipeline phase with DW system demineralized water system
Matching；The caliber specification of interim pipeline 30 and blow-off line 50 is DN200, is matched with miniflow line 60, while requiring small
The bearing capacity of flow pipeline 60 and triple valve 40 is greater than 11bar, meets the related request of pump discharge pressure.
Further, in order to reinforce the filter effect of filter 10, filter screen 11 includes the first filter screen 12 and is arranged
The second filter screen 13 in the first filter screen 12；Wherein, the first filter screen 12 and the setting in a circular table shape of the second filter screen 13,
The biggish one end of first filter screen, 12 radius is removably mounted at the water inlet of filter 10, the first filter screen 12 by bolt
The water outlet of the lesser one end of radius towards filter 10 is extended；
It is lesser that the biggish one end of second filter screen, 13 radius by bolt is removably mounted at 12 radius of the first filter screen
On the end of one end, the water inlet of 13 radius of the second filter screen lesser one end towards filter 10 is extended and is connected with
Three filter screens 14, third filter screen 14 is arranged in ellipsoid, and the water inlet protrusion of third filter screen 14 towards filter 10 is set
It sets；
In this way, forming the mistake being extended along 10 length direction of filter by the first filter screen 12 and the second filter screen 13
Channel is filtered, the filter area of filter is increased, improves filter effect.
In conclusion the interim filter device of nuclear power station pump intake provided by the utility model has the advantages that
(1) the interim filter device of nuclear power station pump intake has backwash and dirt eliminating function, has reached and has not dismantled filter
Core, that is, cleanable filter purpose, solves many engineering problems, when substantially increasing engineering efficiency and compression debugging
Between, it is simple and practical in structure,
(2) the interim filter device of nuclear power station pump intake is entered in the temporary filter (F.T.) of original system design and small flow
The transformation carried out on mouth, is easily installed, low cost, can significantly reduce use cost, have a vast market foreground；
(3) the interim filter device of nuclear power station pump intake can realize backwash by manually controlling triple valve, be not necessarily to
Power supply is connected, it is simple and easy.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of interim filter device of nuclear power station pump intake, including the filter (10) being mounted on pump intake pipeline (00), institute
It states in filter (10) and is provided with filter screen (11), which is characterized in that further include:
Multiple conduit pipes (20), the multiple conduit pipe (20) one end is connected to the water outlet side of the filter screen (11), described
The other end of multiple conduit pipes (20) connects DW system demineralized water system, recoils for introducing demineralized water to the filter screen (11)
It washes；
Interim pipeline (30), described interim pipeline (30) one end are connected to the water inlet of the filter screen (11) through small traffic ingress (15)
Side, interim pipeline (30) other end are separately connected blow-off line (50) and miniflow line (60) by triple valve (40),
The triple valve (40) is used to open the blow-off line (50) and is connected to interim pipeline (30) and the closure miniflow line
(60), the waste water generated after the filter (10) backwash is discharged.
2. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that further include:
Differential pressure gauge, the monitoring side of the differential pressure gauge is separately positioned on the influent side and water outlet side of the filter screen (11), for supervising
Survey the pressure difference of the filter screen (11) two sides.
3. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that the filter (10)
Offer multiple along its circumferentially spaced irrigating gate on side wall, and the irrigating gate is set to the water outlet of the filter screen (11)
Side；The multiple conduit pipe (20) is connected to each irrigating gate one-to-one correspondence.
4. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that the small traffic ingress
(15) it is set on the side wall of the pump intake pipeline (00), the interim pipeline (30) is connected to through the pump intake pipeline (00)
The influent side of the filter screen (11)；
The triple valve (40) is mounted on the interim pipeline (30) close to the filter (10).
5. the interim filter device of nuclear power station pump intake according to claim 3, which is characterized in that the irrigating gate and diversion
The quantity of pipeline (20) is 8.
6. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that the blow-off line (50)
One end far from the triple valve (40) connects melt pit (70), for arranging the waste water generated after the filter (10) backwash
Toward melt pit (70).
7. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that each conduit pipe
(20) it is also equipped with pipeline valve on, is used to open or is closed the conduit pipe (20).
8. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that filter screen (11) packet
It includes:
First filter screen (12), setting in a circular table shape, the biggish one end of the first filter screen (12) radius are mounted on described
The water inlet of filter (10), water outlet of the lesser one end of the first filter screen (12) radius towards the filter (10)
It is extended；
Second filter screen (13), is set in first filter screen (12) and setting in a circular table shape, second filter screen
(13) the biggish one end of radius is removably mounted on the end of first filter screen (12), second filter screen (13) half
The water inlet of the lesser one end of diameter towards the filter (10) is extended and is connected with third filter screen (14), the third
Filter screen (14) is arranged in ellipsoid.
9. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that the conduit pipe (20)
Caliber specification be DN50.
10. the interim filter device of nuclear power station pump intake according to claim 1, which is characterized in that the interim pipeline
(30) and the caliber specification of blow-off line (50) is DN200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191128.0U CN208911573U (en) | 2018-07-26 | 2018-07-26 | A kind of interim filter device of nuclear power station pump intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191128.0U CN208911573U (en) | 2018-07-26 | 2018-07-26 | A kind of interim filter device of nuclear power station pump intake |
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| Publication Number | Publication Date |
|---|---|
| CN208911573U true CN208911573U (en) | 2019-05-31 |
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| CN201821191128.0U Active CN208911573U (en) | 2018-07-26 | 2018-07-26 | A kind of interim filter device of nuclear power station pump intake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025530A (en) * | 2022-05-10 | 2022-09-09 | 中国核电工程有限公司 | Small-size radioactive waste liquid filter module with from shielding function |
-
2018
- 2018-07-26 CN CN201821191128.0U patent/CN208911573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025530A (en) * | 2022-05-10 | 2022-09-09 | 中国核电工程有限公司 | Small-size radioactive waste liquid filter module with from shielding function |
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