CN110458723A - A kind of water quality maintaining method of cast iron feedwater piping - Google Patents
A kind of water quality maintaining method of cast iron feedwater piping Download PDFInfo
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- CN110458723A CN110458723A CN201910763786.5A CN201910763786A CN110458723A CN 110458723 A CN110458723 A CN 110458723A CN 201910763786 A CN201910763786 A CN 201910763786A CN 110458723 A CN110458723 A CN 110458723A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 295
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 230000011218 segmentation Effects 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 230000000737 periodic effect Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000003628 erosive effect Effects 0.000 claims description 10
- 230000002708 enhancing effect Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 208000005623 Carcinogenesis Diseases 0.000 claims description 5
- 241000224467 Giardia intestinalis Species 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 230000004075 alteration Effects 0.000 claims description 5
- 230000000844 anti-bacterial effect Effects 0.000 claims description 5
- 230000036952 cancer formation Effects 0.000 claims description 5
- 231100000504 carcinogenesis Toxicity 0.000 claims description 5
- 238000012851 eutrophication Methods 0.000 claims description 5
- 229940085435 giardia lamblia Drugs 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000002703 mutagenesis Methods 0.000 claims description 5
- 231100000350 mutagenesis Toxicity 0.000 claims description 5
- 230000002688 persistence Effects 0.000 claims description 5
- 239000002957 persistent organic pollutant Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000007751 thermal spraying Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 2
- 231100000049 endocrine disruptor Toxicity 0.000 claims 1
- 239000000598 endocrine disruptor Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 4
- 230000000813 microbial effect Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 241000223935 Cryptosporidium Species 0.000 description 4
- 102000014150 Interferons Human genes 0.000 description 4
- 108010050904 Interferons Proteins 0.000 description 4
- 229940079322 interferon Drugs 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/80—Management or planning
- Y02P90/84—Greenhouse gas [GHG] management systems
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- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
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- Immunology (AREA)
- Pathology (AREA)
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Abstract
The invention discloses a kind of water quality maintaining methods of cast iron feedwater piping, comprising the following steps: the cast iron feedwater piping of selection optimum bore；Form cricoid water supply network structure；Water inlet end water quality carries out priority monitoring；Control water quality pH value in water outlet cast iron feedwater piping；Organic carbon determination can be assimilated by carrying out Periodic biological；Carry out flow rate of water flow sunykatuib analysis and field survey and control streamflow regime；The present invention can avoid water quality rotten by carrying out priority monitoring to the water quality in water inlet end cast iron feedwater piping from source, organic carbon determination can be assimilated by water quality progress Periodic biological in the cast iron feedwater piping to segmentation can be rationally to the water quality management in cast iron feedwater piping, the stability and accuracy of determination data can be improved by being segmented measurement simultaneously, the data for providing science for Rational Maintenance water quality are supported, by maintaining constant can change to avoid aquatic environment state of water quality pH value in cast iron feedwater piping to cause bacterium and microbial growth.
Description
Technical field
The present invention relates to water quality maintenance technology field more particularly to a kind of water quality maintaining methods of cast iron feedwater piping.
Background technique
Cast iron pipe is the water-feeding pipes of a kind of easy construction, good airproof performance, has stronger anti-flexion, dilatation ability
And shock resistance, have wide applicability, properity, be welded, construct and in terms of all have one's own knack.
When cast iron pipe is applied to feedwater piping, water needs to answer by what is be made of cast iron feedwater piping after water factory's water outlet
Miscellaneous huge water supply network structure can just be transported to user, when water can stop longer in cast iron feedwater piping in transmission process
Between, for example same huge reactor of huge water supply network structure, water can carry out various physics, change in water supply network structure
It learns, electrochemistry and microbial reaction, these reactions may result in the water quality in water supply network structure and go bad, causes to supply
Water security problem, it is also possible to which the correlation standard for occurring more than country is secondarily contaminated water quality, how to give to cast iron
Water quality in waterpipe carries out maintenance and has a very important significance, and therefore, the present invention proposes a kind of water of cast iron feedwater piping
Matter maintaining method, to solve shortcoming in the prior art.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes a kind of water quality maintaining method of cast iron feedwater piping, by casting to water inlet end
Water quality in iron feedwater piping carries out priority monitoring can avoid water quality rotten from source, pass through the cast iron feedwater piping to segmentation
Interior water quality progress Periodic biological can assimilate organic carbon determination can be rationally to the water quality management in cast iron feedwater piping, same to time-division
Section measurement can improve the stability and accuracy of determination data, and the data for providing science for Rational Maintenance water quality are supported, pass through
Constant can change to avoid aquatic environment state of water quality pH value in cast iron feedwater piping is maintained to cause bacterium and microbial growth,
The quality that water quality can be effectively improved plays good water quality maintenance effects.
The present invention proposes a kind of water quality maintaining method of cast iron feedwater piping, comprising the following steps:
Step 1: the cast iron feedwater piping with anti-corrosive antibacterial of optimum bore is reasonably selected, and to cast iron feed pipe
Valve body used in road and accessory carry out anti-corrosion enhancing processing；
Step 2: control cast iron feedwater piping forms cricoid water supply network structure in the water outlet of water factory；
Step 3: the water quality in water factory's water inlet end pipeline is entered to water head site water and carries out priority monitoring, monitoring enters water factory
Whether there is or not there is water eutrophication and whether there is or not contain persistence organic pollutant for water quality in water inlet end pipeline；
Step 4: monitoring enters the pH value of the water in water supply network structure from water factory water outlet, controls from water factory water outlet
PH value into the water in water supply network structure is 7.0-8.5；
Step 5: the water supply network structure being made of cast iron feedwater piping is segmented, and in cast iron feedwater piping
Water quality, which carries out Periodic biological, can assimilate organic carbon determination；
Step 6: flow rate of water flow sunykatuib analysis and field survey are carried out to the water flow in water supply network structure, obtain water supply
Flow rate of water flow and residence time in pipe network structure；
Step 7: according to flow rate of water flow and residence time in water supply network structure, from the water outlet of water factory, control cast iron is given
Streamflow regime in waterpipe.
Further improvement lies in that: anti-corrosion enhancing is handled in the step 1 specifically: to valve body used in cast iron feedwater piping
And accessory thermal spraying on surface polyethylene anti-corrosion coating, the valve body used in cast iron feedwater piping and accessory surface form erosion resistant coating.
Further improvement lies in that: erosion resistant coating thickness control is 2-3 millimeters in the step 1.
Further improvement lies in that: the water quality monitoring content in the step 3 further include: whether there is or not in occurring points for monitoring water quality
Secrete that interferon, whether there is or not giardia lamblia stiles and Cryptosporidium occur and whether there is or not carcinogenesis, mutagenesis, aberration inducing substance occur.
Further improvement lies in that: control enters the PH of the water in water supply network structure from water factory water outlet in the step 4
Value is 7.3-7.8.
Further improvement lies in that: the water supply network structure being made of cast iron feedwater piping is segmented in the step 5
When, segmentation principle follows: all endpoint nodes of water supply network structure are all bifurcateds of sectional monitoring point, water supply network structure
Node is sectional monitoring point, remaining water supply network is structural segmented is arranged according to distance, forms equidistant sectional monitoring point.
Further improvement lies in that: detailed process in the step 6 are as follows: form water supply network to by cast iron feedwater piping
Structure carries out flow rate of water flow sunykatuib analysis, and obtains practical flow rate of water flow data by field survey, in conjunction with sunykatuib analysis result
Comprehensive analysis is carried out with practical flow rate of water flow data, obtains flow rate of water flow and residence time in water supply network structure.
Further improvement lies in that: streamflow regime in the step 7 specifically: control cast iron water supply from the water outlet of water factory
Water flow in pipeline is in low flow velocity and low hydraulic pressure state.
The invention has the benefit that by selecting the cast iron feedwater piping of suitable bore can be to avoid due to the choice of diameter
It is excessive cause water flow residence time in cast iron feedwater piping too long caused by the rotten risk of water quality the problem of increasing, by right
Water quality in water inlet end cast iron feedwater piping carries out priority monitoring can avoid water quality rotten from source, pass through the cast iron to segmentation
In feedwater piping water quality carry out Periodic biological can assimilate organic carbon determination can be rationally to the water quality pipe in cast iron feedwater piping
Reason, while it being segmented the stability and accuracy for measuring and capable of improving determination data, the data of science are provided for Rational Maintenance water quality
It supports, by maintaining constant can change to avoid aquatic environment state of water quality pH value in cast iron feedwater piping cause bacterium and micro-
Biological growth can effectively improve the quality of water quality, play good water quality maintenance effects.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is further described below in conjunction with embodiment, the present embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
Embodiment one
A kind of water quality maintaining method of cast iron feedwater piping, comprising the following steps:
Step 1: the cast iron feedwater piping with anti-corrosive antibacterial of optimum bore is reasonably selected, and to cast iron feed pipe
Valve body used in road and accessory carry out anti-corrosion enhancing processing, to valve body used in cast iron feedwater piping and accessory thermal spraying on surface polyethylene
Anticorrosive paint, the valve body used in cast iron feedwater piping and accessory surface form erosion resistant coating, and erosion resistant coating thickness control is 2.5 millimeters；
Step 2: control cast iron feedwater piping forms cricoid water supply network structure in the water outlet of water factory；
Step 3: the water quality in water factory's water inlet end pipeline is entered to water head site water and carries out priority monitoring, monitoring enters water factory
Water eutrophication, whether there is or not containing, persistence organic pollutant, whether there is or not in occurring points whether there is or not occurring for water quality in water inlet end pipeline
Secrete that interferon, whether there is or not giardia lamblia stiles and Cryptosporidium occur and whether there is or not carcinogenesis, mutagenesis, aberration inducing substance occur；
Step 4: monitoring enters the pH value of the water in water supply network structure from water factory water outlet, controls from water factory water outlet
PH value into the water in water supply network structure is 7.3；
Step 5: being segmented the water supply network structure being made of cast iron feedwater piping, and segmentation principle follows: feed pipe
All endpoint nodes of web frame be sectional monitoring point, water supply network structure all node of divergence be sectional monitoring point, remaining
Water supply network it is structural segmented according to distance be arranged, form equidistant sectional monitoring point, and in the cast iron feedwater piping of segmentation
Water quality, which carries out Periodic biological, can assimilate organic carbon determination；
Step 6: flow rate of water flow sunykatuib analysis is carried out to by the water supply network structure that forms of cast iron feedwater piping, and is passed through
Field survey obtains practical flow rate of water flow data, carries out comprehensive analysis in conjunction with sunykatuib analysis result and practical flow rate of water flow data,
Obtain flow rate of water flow and residence time in water supply network structure；
Step 7: according to flow rate of water flow and residence time in water supply network structure, from the water outlet of water factory, control cast iron is given
Streamflow regime in waterpipe, keep water flow be in low flow velocity and low hydraulic pressure state, can to avoid as hydraulic pressure it is excessively high caused by
Energy consumption is excessive, and cast iron feedwater piping interior surface has one layer of hardly flowing water layer, and flow velocity can destroy water layer when increasing
Thickness, cause the oxygen in water flow to readily penetrate through water layer and be fed to cast iron feedwater piping inner wall, cause oxidation corrosion.
Embodiment two
Step 1: the cast iron feedwater piping with anti-corrosive antibacterial of optimum bore is reasonably selected, and to cast iron feed pipe
Valve body used in road and accessory carry out anti-corrosion enhancing processing, to valve body used in cast iron feedwater piping and accessory thermal spraying on surface polyethylene
Anticorrosive paint, the valve body used in cast iron feedwater piping and accessory surface form erosion resistant coating, and erosion resistant coating thickness control is 2.5 millimeters；
Step 2: control cast iron feedwater piping forms cricoid water supply network structure in the water outlet of water factory；
Step 3: the water quality in water factory's water inlet end pipeline is entered to water head site water and carries out priority monitoring, monitoring enters water factory
Water eutrophication, whether there is or not containing, persistence organic pollutant, whether there is or not in occurring points whether there is or not occurring for water quality in water inlet end pipeline
Secrete that interferon, whether there is or not giardia lamblia stiles and Cryptosporidium occur and whether there is or not carcinogenesis, mutagenesis, aberration inducing substance occur；
Step 4: monitoring enters the pH value of the water in water supply network structure from water factory water outlet, controls from water factory water outlet
PH value into the water in water supply network structure is 7.5；
Step 5: being segmented the water supply network structure being made of cast iron feedwater piping, and segmentation principle follows: feed pipe
All endpoint nodes of web frame be sectional monitoring point, water supply network structure all node of divergence be sectional monitoring point, remaining
Water supply network it is structural segmented according to distance be arranged, form equidistant sectional monitoring point, and in the cast iron feedwater piping of segmentation
Water quality, which carries out Periodic biological, can assimilate organic carbon determination；
Step 6: flow rate of water flow sunykatuib analysis is carried out to by the water supply network structure that forms of cast iron feedwater piping, and is passed through
Field survey obtains practical flow rate of water flow data, carries out comprehensive analysis in conjunction with sunykatuib analysis result and practical flow rate of water flow data,
Obtain flow rate of water flow and residence time in water supply network structure；
Step 7: according to flow rate of water flow and residence time in water supply network structure, from the water outlet of water factory, control cast iron is given
Streamflow regime in waterpipe, keep water flow be in low flow velocity and low hydraulic pressure state, can to avoid as hydraulic pressure it is excessively high caused by
Energy consumption is excessive, and cast iron feedwater piping interior surface has one layer of hardly flowing water layer, and flow velocity can destroy water layer when increasing
Thickness, cause the oxygen in water flow to readily penetrate through water layer and be fed to cast iron feedwater piping inner wall, cause oxidation corrosion.
Embodiment three
Step 1: the cast iron feedwater piping with anti-corrosive antibacterial of optimum bore is reasonably selected, and to cast iron feed pipe
Valve body used in road and accessory carry out anti-corrosion enhancing processing, to valve body used in cast iron feedwater piping and accessory thermal spraying on surface polyethylene
Anticorrosive paint, the valve body used in cast iron feedwater piping and accessory surface form erosion resistant coating, and erosion resistant coating thickness control is 2.5 millimeters；
Step 2: control cast iron feedwater piping forms cricoid water supply network structure in the water outlet of water factory；
Step 3: the water quality in water factory's water inlet end pipeline is entered to water head site water and carries out priority monitoring, monitoring enters water factory
Water eutrophication, whether there is or not containing, persistence organic pollutant, whether there is or not in occurring points whether there is or not occurring for water quality in water inlet end pipeline
Secrete that interferon, whether there is or not giardia lamblia stiles and Cryptosporidium occur and whether there is or not carcinogenesis, mutagenesis, aberration inducing substance occur；
Step 4: monitoring enters the pH value of the water in water supply network structure from water factory water outlet, controls from water factory water outlet
PH value into the water in water supply network structure is 7.8；
Step 5: being segmented the water supply network structure being made of cast iron feedwater piping, and segmentation principle follows: feed pipe
All endpoint nodes of web frame be sectional monitoring point, water supply network structure all node of divergence be sectional monitoring point, remaining
Water supply network it is structural segmented according to distance be arranged, form equidistant sectional monitoring point, and in the cast iron feedwater piping of segmentation
Water quality, which carries out Periodic biological, can assimilate organic carbon determination；
Step 6: flow rate of water flow sunykatuib analysis is carried out to by the water supply network structure that forms of cast iron feedwater piping, and is passed through
Field survey obtains practical flow rate of water flow data, carries out comprehensive analysis in conjunction with sunykatuib analysis result and practical flow rate of water flow data,
Obtain flow rate of water flow and residence time in water supply network structure；
Step 7: according to flow rate of water flow and residence time in water supply network structure, from the water outlet of water factory, control cast iron is given
Streamflow regime in waterpipe, keep water flow be in low flow velocity and low hydraulic pressure state, can to avoid as hydraulic pressure it is excessively high caused by
Energy consumption is excessive, and cast iron feedwater piping interior surface has one layer of hardly flowing water layer, and flow velocity can destroy water layer when increasing
Thickness, cause the oxygen in water flow to readily penetrate through water layer and be fed to cast iron feedwater piping inner wall, cause oxidation corrosion.
It can be concluded that, pass through control in the present invention from water factory water outlet according to embodiment one, embodiment two and embodiment three
PH value into the water in water supply network structure is 7.3-7.8, can maintain the quality of water quality well, it is possible to reduce water quality becomes
The risk of matter.
By selecting the cast iron feedwater piping of suitable bore water flow can be caused in cast iron to avoid since the choice of diameter is excessive
In feedwater piping the residence time it is too long caused by the rotten risk of water quality the problem of increasing, by water inlet end cast iron feedwater piping
Interior water quality carries out priority monitoring can avoid water quality rotten from source, be carried out by water quality in the cast iron feedwater piping to segmentation
Periodic biological can assimilate organic carbon determination can be rationally to the water quality management in cast iron feedwater piping, while being segmented measurement and can mention
The stability and accuracy of high assay data, the data for providing science for Rational Maintenance water quality are supported, by maintaining cast iron to give
Constant can change to avoid aquatic environment state of water quality pH value causes bacterium and microbial growth in waterpipe, can effectively improve
The quality of water quality plays good water quality maintenance effects.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. a kind of water quality maintaining method of cast iron feedwater piping, which comprises the following steps:
Step 1: the cast iron feedwater piping with anti-corrosive antibacterial of optimum bore is reasonably selected, and to cast iron feedwater piping institute
Anti-corrosion enhancing processing is carried out with valve body and accessory；
Step 2: control cast iron feedwater piping forms cricoid water supply network structure in the water outlet of water factory；
Step 3: the water quality in water factory's water inlet end pipeline is entered to water head site water and carries out priority monitoring, monitoring enters water factory and intakes
Whether there is or not there is water eutrophication and whether there is or not contain persistence organic pollutant for water quality in end pipe road；
Step 4: monitoring enters the pH value of the water in water supply network structure from water factory water outlet, and control enters from water factory water outlet
The pH value of water in water supply network structure is 7.0-8.5；
Step 5: the water supply network structure being made of cast iron feedwater piping is segmented, and the water quality in cast iron feedwater piping
Organic carbon determination can be assimilated by carrying out Periodic biological；
Step 6: flow rate of water flow sunykatuib analysis and field survey are carried out to the water flow in water supply network structure, obtain water supply network
Flow rate of water flow and residence time in structure；
Step 7: according to flow rate of water flow and residence time in water supply network structure, cast iron feed pipe is controlled from the water outlet of water factory
Streamflow regime in road.
2. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 1
Middle anti-corrosion enhancing processing specifically: to valve body used in cast iron feedwater piping and accessory thermal spraying on surface polyethylene anti-corrosion coating, In
Valve body used in cast iron feedwater piping and accessory surface form erosion resistant coating.
3. a kind of water quality maintaining method of cast iron feedwater piping according to claim 2, it is characterised in that: the step 1
Middle erosion resistant coating thickness control is 2-3 millimeters.
4. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 3
In water quality monitoring content further include: monitoring water quality whether there is or not occurring, endocrine disruptors, whether there is or not giardia lamblia stiles and hidden spore occur
Sub- worm and whether there is or not carcinogenesis, mutagenesis, aberration inducing substance occur.
5. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 4
The pH value that middle control enters the water in water supply network structure from water factory water outlet is 7.3-7.8.
6. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 5
In when being segmented to the water supply network structure being made of cast iron feedwater piping, segmentation principle follows: the institute of water supply network structure
Have endpoint node be sectional monitoring point, water supply network structure all node of divergence be sectional monitoring point, remaining water supply network
It is structural segmented to be arranged according to distance, form equidistant sectional monitoring point.
7. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 6
Middle detailed process are as follows: carry out flow rate of water flow sunykatuib analysis to by the water supply network structure that forms of cast iron feedwater piping, and pass through reality
Ground measurement obtains practical flow rate of water flow data, carries out comprehensive analysis in conjunction with sunykatuib analysis result and practical flow rate of water flow data, obtains
Flow rate of water flow and residence time in water supply network structure out.
8. a kind of water quality maintaining method of cast iron feedwater piping according to claim 1, it is characterised in that: the step 7
Middle streamflow regime specifically: from the water flow in the water outlet of water factory control cast iron feedwater piping in low flow velocity and low hydraulic pressure shape
State.
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