CN103752068B - Back flushing system and back flushing method - Google Patents

Back flushing system and back flushing method Download PDF

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Publication number
CN103752068B
CN103752068B CN201410021628.XA CN201410021628A CN103752068B CN 103752068 B CN103752068 B CN 103752068B CN 201410021628 A CN201410021628 A CN 201410021628A CN 103752068 B CN103752068 B CN 103752068B
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Prior art keywords
flushing
pipeline
pump
gate valve
back flushing
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CN201410021628.XA
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CN103752068A (en
Inventor
潘春雷
陈磊
张江建
宗琪
李伟军
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Yunnan Dahongshan Pipeline Co Ltd
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Yunnan Dahongshan Pipeline Co Ltd
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Abstract

The invention provides an underflow pump back flushing system capable of efficiently operating and a back flushing method, and is used for performing back flushing and cleaning on a ceramic filter. The back flushing system comprises a back flushing pool, a back flushing pipeline, an underflow pump, a spare pipeline, a sewage pump and a sewage pipeline, wherein the back flushing pipeline is connected between the back flushing pool and the underflow pump; a pumping pipeline outlet of the underflow pump is connected to the ceramic filter; a pumping pipeline outlet of the sewage pump is connected to the sewage pipeline; the spare pipeline is connected between the sewage pipeline and the back flushing pipeline. The back flushing method based on the back flushing system disclosed by the invention keeps the cleaning of the ceramic filter free from influence of water source supply and prevents the cleaning from being interrupted; the operating efficiency of operator can be improved, and simultaneously the normal production is guaranteed.

Description

A kind of back-flushing system and back-flushing method
Technical field
The present invention relates to liquid material pipeline conveying technology field, particularly a kind of underflow pump back-flushing system and back-flushing method.
Background technology
Existing ceramic filter needs to carry out back-flushing cleaning to it in real time at work, existing underflow pump back-flushing system as shown in Figure 1, comprise underflow pump 5 and back-flushing pipeline 6, back-flushing used come from respectively horizontal pump 1 fetch water supply collecting pit 3 and clarified water pump 2 fetch water supply clear water reserviors 4, collecting pit 3 is connected back-flushing pipeline 6 with clear water reserviors 4, the water side of back-flushing pipeline 6 connects underflow pump 5, the pumping output of underflow pump 5 is connected to ceramic filter, carries out back-flushing cleaning to ceramic filter.There is following familiar lacunas in this back-flushing system of the prior art: if horizontal pump and clarified water pump are damaged in actual moving process, repair and change, or when the water quality of clear water reserviors and collecting pit suffers severe contamination, just cannot supply water in time to back-flushing pipeline, and then underflow pump cannot carry out back-flushing cleaning to ceramic filter, whole production system is caused to be shut down, have a strong impact on normal need of production, therefore the operation stability of underflow pump back-flushing system of the prior art is poor, the uninterrupted back-flushing cleaning requirement to ceramic filter cannot be met.
Summary of the invention
The present invention is based on above-mentioned prior art defect, the proposition of innovation is a kind of can the underflow pump back-flushing system of Effec-tive Function and back-flushing method, this system can ensure that the back-flushing cleaning of underflow pump can not be interrupted, meet the uninterrupted back-flushing cleaning requirement to ceramic filter, improve production efficiency.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A kind of back-flushing system, for carrying out back-flushing cleaning to ceramic filter, comprise: recoil pond, back-flushing pipeline 6, underflow pump 5, spare duct 7, sewage pump 8,9 and plumbing drain 10, described back-flushing pipeline 6 is connected between recoil pond and underflow pump 6, the pump tubing length outlet of described underflow pump 6 is connected to ceramic filter, described sewage pump 8, the pump tubing length outlet of 9 is connected to plumbing drain 10, between described plumbing drain 10 and back-flushing pipeline 6, be connected with described spare duct 7.
Further according to back-flushing system of the present invention, one end of wherein said spare duct 7 is communicated in plumbing drain 10 through the sidewall of plumbing drain, the other end is communicated in back-flushing pipeline 6 through the sidewall of back-flushing pipeline, and is provided with gate valve 11 on described spare duct 7.
Further according to back-flushing system of the present invention, wherein said spare duct 7 is the pipeline of DN100.
Further according to back-flushing system of the present invention, wherein said back-flushing pipeline 6 is provided with gate valve 12, and described gate valve 12 is arranged at the downstream position that back-flushing pipeline 6 is connected with spare duct 7, and is in normally open.
Further according to back-flushing system of the present invention, wherein said sewage pump includes several, and the outlet of the pump tubing length of each sewage pump is connected to plumbing drain 10 jointly, and the outlet of described plumbing drain 10 is connected to accident pool 14.
Further according to back-flushing system of the present invention, wherein said recoil pond comprises collecting pit 3 and clear water reserviors 4, described collecting pit is connected to horizontal pump 1, described clear water reserviors 4 are connected to clarified water pump 2, the export pipeline of described collecting pit 3 and clear water reserviors 4 is connected to described back-flushing pipeline 6, and is provided with gate valve on described export pipeline.
Based on the back-flushing method that back-flushing system of the present invention is carried out ceramic filter, comprise the following steps:
(1), under normal operating conditions, close the gate valve 11 on described spare duct 7, horizontal pump and clarified water pump is utilized to squeeze into the confession water-supply source of the water in collecting pit and clear water reserviors as back-flushing pipeline 6, water pump in back-flushing pipeline 6 is delivered to ceramic filter 13 by described underflow pump 5, carries out recoil cleaning to it;
(2), when the confession water-supply source of back-flushing pipeline 6 occurs abnormal, open the gate valve 11 on spare duct 7, utilize sewage pump that the sewage of pumping is supplied to back-flushing pipeline 6 as back-flushing, by described underflow pump 5, the water pump in back-flushing pipeline 6 is delivered to ceramic filter 13, recoil cleaning is carried out to it.
Further according to back-flushing method of the present invention, wherein in step (2), close the gate valve 15,16 that collecting pit 3 and clear water reserviors 4 export pipeline are arranged simultaneously.
At least following technique effect can be reached by technical scheme of the present invention:
1, effectively ensure that production efficiency, meet the uninterrupted back-flushing cleaning requirement to ceramic filter;
2, by the solution of the present invention, making when overhauling the parts such as horizontal pump, clarified water pump, can not have any impact to the back-flushing cleaning of ceramic filter, not affecting normal production;
3, scheme of the present invention simple and easy to do, realize with low cost, greatly reduce the fault rate of back-flushing system simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of back-flushing system of the prior art;
Accompanying drawing 2 is the structural representation of back-flushing system of the present invention;
In figure, the implication of each Reference numeral is as follows:
1-horizontal pump, 2-clarified water pump, 3-collecting pit, 4-clear water reserviors, 5-underflow pump, 6-back-flushing pipeline, 7-spare duct, 8,9-sewage pump, 10-plumbing drain, 11,12,15,16-gate valve, 13-ceramic filter, 14-accident pool.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail, to enable those skilled in the art's understanding the solution of the present invention clearly, but does not therefore limit the scope of the invention.
As shown in Figure 2, underflow pump back-flushing system of the present invention is used for carrying out back-flushing cleaning to ceramic filter, whole system comprises horizontal pump 1, clarified water pump 2, collecting pit 3, clear water reserviors 4, underflow pump 5, back-flushing pipeline 6, spare duct 7, sewage pump 8,9 and plumbing drain 10.Described horizontal pump 1 and clarified water pump 2 supply water respectively to collecting pit 3 and clear water reserviors 4, back-flushing system back-flushing used comes from the fetch water collecting pit 3 of supply and clarified water pump 2 of horizontal pump 1 respectively and to fetch water the clear water reserviors 4 of supply, the export pipeline of collecting pit 3 and clear water reserviors 4 is connected to back-flushing pipeline 6, and gate valve is provided with on its export pipeline, the water side of back-flushing pipeline 6 is connected with underflow pump 5, the pumping output of underflow pump 5 is connected to ceramic filter 13, carries out back-flushing cleaning to ceramic filter 13.What the present invention innovated introduces spare duct 7, concrete cesspool is provided with some sewage pumps, the application's example provides two sewage pumps 8 and 9, the pump tubing length outlet of two sewage pumps is connected to plumbing drain 10 jointly, the outlet of plumbing drain 10 is connected to accident pool 14, spare duct 7 is connected with between plumbing drain 10 and back-flushing pipeline 6, namely one end of spare duct 7 is communicated with plumbing drain 10, the other end is communicated with back-flushing pipeline 6, preferred described spare duct 7 is the pipeline of DN100, described spare duct 7 is provided with gate valve 11, described gate valve 11 is only utilizing the sewage in cesspool to open just now as during back-flushing, substantially normally off is in, on described back-flushing pipeline 6, be also provided with gate valve 12 simultaneously, described gate valve 12 is in normally open, and preferred described gate valve 12 is in the downstream of back-flushing pipeline 10 relative to gate valve 11.
Back-flushing system of the present invention is utilized to carry out the back-flushing method of ceramic filter as follows: under normal operating condition, closing gate valve 11, utilize horizontal pump 1 and clarified water pump 2 to squeeze into water in collecting pit and clear water reserviors for back-flushing pipeline 6 and supply back-flushing, water pump in back-flushing pipeline 6 is delivered to ceramic filter 13 by underflow pump 5, carries out recoil cleaning to it.When horizontal pump, clarified water pump break down or need maintenance, or when collecting pit, clear water reserviors etc. need cleaning to supply water, open gate valve 11, the sewage utilizing sewage pump to provide is supplied to back-flushing pipeline 6 as back-flushing, then rinsed ceramic filter by underflow pump, ensure that the cleaning of ceramic filter is not by the impact of water source supply, operating personnel utilize improved pipe-line system, improve operating efficiency, also ensure normally carrying out of production simultaneously.
Below be only that the preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present invention is conceived all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.

Claims (7)

1. back-flushing cleaning method ceramic filter carried out based on back-flushing system, described back-flushing system comprises: recoil pond, back-flushing pipeline (6), underflow pump (5), spare duct (7), sewage pump (8, 9) and plumbing drain (10), described back-flushing pipeline (6) is connected between recoil pond and underflow pump (5), the pump tubing length outlet of described underflow pump (5) is connected to ceramic filter, described sewage pump (8, 9) pump tubing length outlet is connected to plumbing drain (10), described spare duct (7) is connected with between described plumbing drain (10) and back-flushing pipeline (6), described spare duct (7) is provided with gate valve (11), it is characterized in that, described back-flushing cleaning method comprises the following steps:
Under step (1), normal operating conditions, close the gate valve (11) on described spare duct (7), utilize the water in recoil pond as the confession water-supply source of back-flushing pipeline (6), water pump in back-flushing pipeline (6) is delivered to ceramic filter (13) by described underflow pump (5), carries out recoil cleaning to it;
Step (2), when back-flushing pipeline (6) occur abnormal for water-supply source time, open the gate valve (11) on described spare duct (7), utilize sewage pump that the sewage of pumping is supplied to back-flushing pipeline (6) as back-flushing, by described underflow pump (5), the water pump in back-flushing pipeline (6) is delivered to ceramic filter (13), recoil cleaning is carried out to it.
2. back-flushing cleaning method according to claim 1, is characterized in that, one end of described spare duct (7) is communicated in plumbing drain (10) through the sidewall of plumbing drain, and the other end is communicated in back-flushing pipeline (6) through the sidewall of back-flushing pipeline.
3. back-flushing cleaning method according to claim 2, is characterized in that, the pipeline that described spare duct (7) is DN100.
4. the back-flushing cleaning method according to any one of claim 1-3, it is characterized in that, described back-flushing pipeline (6) is also provided with gate valve (12), and the gate valve (12) on described back-flushing pipeline (6) is arranged at the downstream position that back-flushing pipeline (6) is connected with spare duct (7), and be in normally open.
5. the back-flushing cleaning method according to any one of claim 1-3, it is characterized in that, described sewage pump includes several, and the outlet of the pump tubing length of each sewage pump is connected to described plumbing drain (10) jointly, and the outlet of described plumbing drain (10) is connected to accident pool (14).
6. the back-flushing cleaning method according to any one of claim 1-3, it is characterized in that, described recoil pond comprises collecting pit (3) and clear water reserviors (4), described collecting pit is connected to horizontal pump (1), described clear water reserviors (4) are connected to clarified water pump (2), the export pipeline of described collecting pit (3) and clear water reserviors (4) is connected to described back-flushing pipeline (6), and is provided with gate valve on described export pipeline.
7. back-flushing cleaning method according to claim 6, is characterized in that, wherein in step (2), closes the gate valve (15,16) that collecting pit (3) and clear water reserviors (4) export pipeline are arranged simultaneously.
CN201410021628.XA 2014-01-17 2014-01-17 Back flushing system and back flushing method Active CN103752068B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105709467B (en) * 2016-01-26 2018-04-03 国核电力规划设计研究院 Sludge drainage system and use its method

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CN113324696B (en) * 2021-06-22 2022-03-18 中国核动力研究设计院 Method for maintaining back-flushing isolation device of nuclear reactor differential pressure and pressure transmitter

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DE20302516U1 (en) * 2003-02-15 2003-12-11 Hamann Ag Plant for the removal and deactivation of organisms in ballast water
CN101475278A (en) * 2009-02-03 2009-07-08 江阴市虎跑环保科技有限公司 Full-automatic reclaimed water recycling machine
CN201620088U (en) * 2010-02-10 2010-11-03 冯军 Dual-pump liquid treating equipment
CN203694747U (en) * 2014-01-17 2014-07-09 云南大红山管道有限公司 Back flushing water system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105709467B (en) * 2016-01-26 2018-04-03 国核电力规划设计研究院 Sludge drainage system and use its method

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