Dissolution type chlorination pipeline dredging device and method
A technology for pipelines and dissolving agents, applied in the field of dissolving chlorination pipeline dredging devices, can solve the problems of reducing the pipeline flow area, affecting the safe operation of the system, reducing the flow rate, etc., and achieves mature technology, obvious dredging effect, and the effect of solving blockage.
Active Publication Date: 2019-03-26
JIANGSU NUCLEAR POWER CORP
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Problems solved by technology
[0004] The technical problems to be solved by the present invention are: scaling on the inner wall of the chlorination pipeline, reduced pipeline flow area, reduced flow rate, residual chlorine concentration at the dosing point lower than the standard value, and marine organisms attached to downstream pipelines and equipment, affecting the safe operation of the system
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[0023] Below in conjunction with embodiment the present invention is further introduced:
[0024] A solution-type chlorination pipeline dredging device, externally connected to the outside of No. 1 and No. 2 units, including a solvent dilution tank 1, a dosing pump 2, a flushing pump 3, a dosing pump outlet pressure gauge 4-1, and a flushing pump outlet pressure Table 4-2, dosing pump outlet isolation valve 5-1, flushing pump outlet isolation valve 5-2, rotameter A6-1, rotameter B6-2, size head A7, size head B8, size head C9, Fire-fighting water inlet valve 10, tank truck outlet isolation valve 11 and tank truck 12; wherein said fire-fighting water inlet valve 10 is located on the pipeline between the domestic fire-fighting water in the factory area and the solvent dilution tank 1, and said isolation valve 11 is located at On the pipeline between the tank truck 12 and the solvent dilution tank 1; two pipelines DN50 and DN100 are also stretched out from the solvent dilution tan...
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The invention belongs to the field of mechanical maintaining, and particularly relates to a dissolution type chlorination pipeline dredging device and method. The technical problems that scale is formed on the inner wall of a chlorination pipeline, the circulation area of the pipeline is decreased, the flow rate is reduced, the chemical adding point and chlorine residue concentration are lower than the standard values, marine organisms are attached to the downstream portion of the pipeline and equipment, and system safety operation is influenced are solved. According to the dissolution type chlorination pipeline dredging device and method, the pipeline dredging technology is mature, the dredging effect is obvious, and the chlorination pipeline blockage pipeline can be quickly and effectively solved. The dissolution type chlorination pipeline dredging device comprises a dissolution agent, a chemical adding pump, a washing pump, a chemical adding pump outlet pressure gauge, a washing pump outlet pressure gauge, a chemical adding pump outlet isolation valve, a washing pump outlet isolation valve, a rotor flow meter A, a rotor flow meter B, a transition pipe A, a transition pipe B, a transition pipe C, a fire fighting water inlet valve, a tank car outlet isolation valve and a tank car.
Description
technical field [0001] The invention belongs to the field of mechanical maintenance, and in particular relates to a device for dredging a dissolving chlorination pipeline and a dredging method. Background technique [0002] Chlorination pipelines in nuclear power plants have repeatedly found that the flow meter indications at the outlet of the dosing pumps have decreased from the initial value of 75% year by year, and the lowest indication is 13%, which is far lower than the normal value of the system by 70% to 80%. After on-site verification , the concentration of residual chlorine in the sea water intake head of Gaogong Island is lower than the normal value (control standard: 1.0~5.0mg / L). On November 06, 2015, a total of 1,054 samples were taken at the head of Gaogong Island’s sea water intake, of which 424 samples were taken with the residual chlorine concentration lower than the control standard. After dismantling the chlorination pipeline in the factory area, it was f...
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IPC IPC(8): B08B9/032
CPCB08B9/0321B08B9/0325
Inventor 郭光亮孙永平姜华芮守龙倪宇峰黄磊孙旭朱友学孙传福胡银龙顾柏晓宋逸凡崔冀
Owner JIANGSU NUCLEAR POWER CORP