CN209520139U - A kind of dissolution type chlorination pipe dredging device - Google Patents
A kind of dissolution type chlorination pipe dredging device Download PDFInfo
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- CN209520139U CN209520139U CN201822213652.XU CN201822213652U CN209520139U CN 209520139 U CN209520139 U CN 209520139U CN 201822213652 U CN201822213652 U CN 201822213652U CN 209520139 U CN209520139 U CN 209520139U
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- concentric reducer
- isolating valve
- dredging
- dosing pump
- pump
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Abstract
The utility model belongs to flight-line maintenance field, and in particular to a kind of dissolution type chlorination pipe dredging device and dredging method；The technical problem to be solved by the utility model is to chlorination inner wall of the pipe fouling, circulation area of pipeline reduces, flow-reduction, and chemical feeding points residual chlorine concentration is lower than standard value, and downstream line and equipment adhere to marine growth, influences system safety operation；The utility model provides a kind of dissolution type chlorination pipe dredging device and dredging method, and pipe-dredging technical maturity, dredging effect is obvious, can quickly and effectively solve the problems, such as chlorination line clogging；Including lytic agent thinning tank, dosing pump, flushing pump, dosing pump delivery gauge, flushing pump delivery gauge, dosing pump discharge isolating valve, rinse pump discharge isolating valve, spinner flowmeter A, spinner flowmeter B, concentric reducer A, concentric reducer B, concentric reducer C, fire water inlet valve, tank car outlet isolating valve and groove tank car.
Description
Technical field
The invention belongs to flight-line maintenance fields, and in particular to a kind of dissolution type chlorination pipe dredging device and dredging method.
Background technique
Repeatedly discovery dosing pump outlet stream meter registration reduces nuclear power station chlorination pipeline in recent years, year by year from initial value 75%
Decline, minimum registration are 13%, are far below system normal value 70%~80%；Through field verification, the island Gao Gong seawater water-fetching head
Residual chlorine concentration is lower than normal value (control standard: 1.0~5.0mg/L) in seawater, according to two unit chlorination system residual chlorine concentrations
Data analysis, from November 06,4 days to 2015 January in 2010, the island Gao Gong seawater water-fetching head samples 1054 times altogether, wherein
424 times residual chlorine concentration is lower than control standard.Discovery inner wall of the pipe is bonded a large amount of light-yellow precipitate objects after removing plant area's chlorination pipeline,
Internal diameter of the pipeline about DN150, sediment thickness about 25~30mm, chlorination pipeline flow area reduce, and pump outlet flow amount is caused to become smaller,
Chemical feeding points residual chlorine concentration reduces, and is unable to satisfy live service requirement.
Special establishment dissolution type chlorination pipe dredging device and dredging method thus, it is successively additional to simulation chlorination pipeline and factory
Chlorine pipeline implements dissolution type dredging, dredges significant effect, and dirt removal rate fully meets system service requirement up to 99%, selects
Chemical reagent not will cause any damage to pipeline, and the product after dirt dissolution reaction not will cause seawater pollution, under
Trip equipment has no adverse effects, and fundamentally solving the problems, such as that chlorination pipeline blocks for a long time can not dredge.
Summary of the invention
The technical problems to be solved by the present invention are: chlorination inner wall of the pipe fouling, circulation area of pipeline reduces, flow drop
Low, chemical feeding points residual chlorine concentration is lower than standard value, and downstream line and equipment adhere to marine growth, influences system safety operation.The present invention
A kind of dissolution type chlorination pipe dredging device and dredging method are provided, pipe-dredging technical maturity, dredging effect is obvious, can be fast
Fast effective solution chlorination line clogging problem.
The technical scheme is that
A kind of dissolution type chlorination pipe dredging device is external in No. 1, on the outside of No. 2 units, including lytic agent thinning tank plus
Teat pipette, dosing pump delivery gauge, flushing pump delivery gauge, dosing pump discharge isolating valve, rinses pump discharge isolation at flushing pump
Valve, spinner flowmeter A, spinner flowmeter B, concentric reducer A, concentric reducer B, concentric reducer C, fire water inlet valve, tank car outlet isolation
Valve and groove tank car；Wherein the fire water inlet valve is located on the pipeline between plant area's life fire water and lytic agent thinning tank,
The isolating valve is on the pipeline between groove tank car and lytic agent thinning tank；Described includes also stretching out two on lytic agent thinning tank
Pipeline DN50 and DN100, the DN50 last time be equipped with dosing pump, dosing pump delivery gauge, dosing pump discharge isolating valve,
Spinner flowmeter A and concentric reducer A；Be successively arranged on the DN100 flushing pump, flushing pump delivery gauge, rinse pump discharge every
From valve, spinner flowmeter B, concentric reducer B and concentric reducer C；The DN50 finally imports DN100, imports point and is located at concentric reducer B to greatly
In DN100 management between microcephaly C；Finally it is connected to by DN100 with No. 1 unit and No. 2 units.
A kind of dissolution type chlorination pipe-dredging method is realized and is filled based on dissolution type chlorination pipe-dredging as described above
It sets, comprising the following steps:
Step 1 connects equipment and its connecting pipe, and all valves are placed in off；
Step 2 opens inlet valve, and lytic agent thinning tank is filled tap water；
Step 3 opens isolating valve, starts flushing pump, and the residual dielectric in chlorination pipeline is discharged；
Step 34, stoppage in transit flushing pump close isolating valve, open isolating valve, start dosing pump；
Step 5, by the aperture of regulating water inlet valve and isolating valve, so that lytic agent thinning tank liquid level is maintained intermediate liquid level；
Step 6 opens isolating valve, starts the dosing pump in groove tank car, lytic agent is added in thinning tank；
Step 7, the aperture by controlling isolating valve, keeping the concentration of lytic agent in thinning tank is 2%；
The variation of dosing pump delivery gauge registration is observed in step 8, cleaning process, and valve opening is isolated by control, is guaranteed
Pressure registration maintains within the scope of 0.3~0.5Mpa；
Step 9, pressure gauge registration stablize it is constant after, tentatively judge that sludge on inner wall of pipeline dissolves substantially；
Step 10, stoppage in transit dosing pump close isolating valve and isolating valve, open valve, start flushing pump, maintain lytic agent dilute
It is constant to release tank liquid level；
Step 11, after pump discharge flow reaches required value, pipe-dredging work terminate；
If step 12, flushing pump rate of discharge are lower than required value, repeat step 4-10.
The beneficial effects of the present invention are:
There is provided a kind of dissolution type chlorination pipe dredging device and dredging method, pipe-dredging technical maturity, dredging effect is bright
It is aobvious, it can quickly and effectively solve the problems, such as chlorination line clogging.
Detailed description of the invention
Fig. 1 is a kind of dissolution type chlorination pipe dredging device schematic diagram
Specific embodiment
The present invention is further introduced below with reference to embodiment:
A kind of dissolution type chlorination pipe dredging device is external in No. 1, on the outside of No. 2 units, including lytic agent thinning tank 1 plus
Teat pipette 2, flushing pump 3, dosing pump delivery gauge 4-1, flushing pump delivery gauge 4-2, dosing pump discharge isolating valve 5-1, punching
It washes pump discharge isolating valve 5-2, spinner flowmeter A6-1, spinner flowmeter B6-2, concentric reducer A7, concentric reducer B8, concentric reducer C9, disappear
Waterproof inlet valve 10, tank car outlet isolating valve 11 and groove tank car 12；Wherein the fire water inlet valve 10 is located at plant area's life and disappears
On pipeline between waterproof and lytic agent thinning tank 1, the isolating valve 11 is between groove tank car 12 and lytic agent thinning tank 1
On pipeline；Described includes that two pipelines DN50 and DN100 are also stretched out on lytic agent thinning tank 1, and the DN50 last time, which is equipped with, to be added
Teat pipette 2, dosing pump delivery gauge 4-1, dosing pump discharge isolating valve 5-1, spinner flowmeter A6-1 and concentric reducer A7；It is described
It is successively arranged flushing pump 3 on DN100, flushing pump delivery gauge 4-2, rinses pump discharge isolating valve 5-2, spinner flowmeter B6-
2, concentric reducer B8 and concentric reducer C9；The DN50 finally imports DN100, imports point between concentric reducer B8 to concentric reducer C9
In DN100 management；Finally it is connected to by DN100 with No. 1 unit and No. 2 units.
A kind of dissolution type chlorination pipe-dredging method is realized and is filled based on dissolution type chlorination pipe-dredging as described above
It sets, comprising the following steps:
Step 1 connects equipment and its connecting pipe, and all valves are placed in off；
Step 2 opens inlet valve 10, and lytic agent thinning tank is filled tap water；
Step 3 opens isolating valve 5-2, starts flushing pump 3, and the residual dielectric in chlorination pipeline is discharged；
Step 34, stoppage in transit flushing pump 3 close isolating valve 5-2, open isolating valve 5-1, start dosing pump 2；
Step 5, by the aperture of regulating water inlet valve 10 and isolating valve 5-1, so that lytic agent thinning tank liquid level is maintained centre
Liquid level；
Step 6 opens isolating valve 11, starts the dosing pump in groove tank car, lytic agent is added in thinning tank；
Step 7, the aperture by controlling isolating valve 11, keeping the concentration of lytic agent in thinning tank is 2%；
The variation of dosing pump delivery gauge 4-1 registration is observed in step 8, cleaning process, is opened by controlling isolating valve 5-1
Degree guarantees that pressure gauge 4-1 registration maintains within the scope of 0.3~0.5Mpa；
Step 9, pressure gauge 4-1 registration stablize it is constant after, tentatively judge that sludge on inner wall of pipeline dissolves substantially；
Step 10, stoppage in transit dosing pump 2 close isolating valve 11 and isolating valve 5-1, open valve 5-2, start flushing pump 3, dimension
It is constant to hold lytic agent thinning tank liquid level；
Step 11, after pump discharge flow reaches required value, pipe-dredging work terminate；
If step 12, flushing pump rate of discharge are lower than required value, repeat 4-10 step.
Claims (1)
1. a kind of dissolution type chlorination pipe dredging device is external in No. 1, No. 2 units outsides, it is characterised in that: including lytic agent
Thinning tank (1), flushing pump (3), dosing pump delivery gauge (4-1), flushing pump delivery gauge (4-2), adds dosing pump (2)
Teat pipette export isolating valve (5-1), rinse pump discharge isolating valve (5-2), spinner flowmeter A (6-1), spinner flowmeter B (6-2),
Concentric reducer A (7), concentric reducer B (8), concentric reducer C (9), fire water inlet valve (10), tank car outlet isolating valve (11) and groove tank car
(12)；Wherein the fire water inlet valve (10) is located on the pipeline between plant area's life fire water and lytic agent thinning tank (1),
The isolating valve (11) is located on the pipeline between groove tank car (12) and lytic agent thinning tank (1)；Described includes dissolution dilution agent
Two pipelines DN50 and DN100 are also stretched out on tank (1), the DN50 last time is equipped with dosing pump (2), dosing pump delivery gauge
(4-1), dosing pump discharge isolating valve (5-1), spinner flowmeter A (6-1) and concentric reducer A (7)；It is successively arranged on the DN100
Flushing pump (3), rinses pump discharge isolating valve (5-2), spinner flowmeter B (6-2), concentric reducer at flushing pump delivery gauge (4-2)
B (8) and concentric reducer C (9)；The DN50 finally imports DN100, imports point and is located between concentric reducer B (8) to concentric reducer C (9)
In DN100 management；Finally it is connected to by DN100 with No. 1 unit and No. 2 units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213652.XU CN209520139U (en) | 2018-12-27 | 2018-12-27 | A kind of dissolution type chlorination pipe dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213652.XU CN209520139U (en) | 2018-12-27 | 2018-12-27 | A kind of dissolution type chlorination pipe dredging device |
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| Publication Number | Publication Date |
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| CN209520139U true CN209520139U (en) | 2019-10-22 |
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| CN201822213652.XU Active CN209520139U (en) | 2018-12-27 | 2018-12-27 | A kind of dissolution type chlorination pipe dredging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513695A (en) * | 2018-12-27 | 2019-03-26 | 江苏核电有限公司 | A kind of dissolution type chlorination pipe dredging device and dredging method |
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2018
- 2018-12-27 CN CN201822213652.XU patent/CN209520139U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513695A (en) * | 2018-12-27 | 2019-03-26 | 江苏核电有限公司 | A kind of dissolution type chlorination pipe dredging device and dredging method |
| CN109513695B (en) * | 2018-12-27 | 2023-10-20 | 江苏核电有限公司 | Dissolving type chlorinated pipeline dredging device and dredging method |
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