CN107829102A - Circulating pickling device and method for carbon steel piping - Google Patents
Circulating pickling device and method for carbon steel piping Download PDFInfo
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- CN107829102A CN107829102A CN201711388071.3A CN201711388071A CN107829102A CN 107829102 A CN107829102 A CN 107829102A CN 201711388071 A CN201711388071 A CN 201711388071A CN 107829102 A CN107829102 A CN 107829102A
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- pickling
- acid
- pickle
- cleaning tank
- pipeline
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention proposes a kind of circulating pickling device for carbon steel piping, including：Acid cleaning tank, it is used to accommodate pickle；Connecting box, it is arranged on the first side of the acid cleaning tank, the acid pickling tube output end of predetermined number is provided with the connecting box, the acid pickling tube output end is connected with one end of pickling pipeline, the connecting box is to be exported the pickle to the pickling pipeline by the acid pickling tube output end, to be cleaned to the pickling pipeline；Acid pickling tube input, the second side of the acid cleaning tank is arranged on, the acid pickling tube input is connected with the other end of the pickling pipeline, is inputted to export and flow through the pickle of the pickling pipeline connecting box to the acid cleaning tank；The acid cleaning tank is connected with the connecting box by first circulation pump, and the circulating pump for the pickle providing power so that the pickle circulates between the acid cleaning tank, connecting box, pickling pipeline.
Description
Technical field
The present invention relates to mechanical equipment technical field, is filled in particular to a kind of cycle pickling for carbon steel piping
Put and method.
Background technology
At present, in metallurgical construction engineering project, conventional hydraulic pipeline pickling be by finished product pipeline in a pre-installation, be placed on
Soaked in chemical pickling groove, after technical finesse is qualified, then transport job site to, installed according to drawing and code requirement,
With requirement more and more higher of the hydraulic technique to system clean degree, conventional construction technology one can not meet demand, and in the past
Construction technology waste time and energy, clean and installed after carrying out pipeline dismounting, efficiency of construction is relatively low.
The content of the invention
In consideration of it, the present invention proposes a kind of circulating pickling device and method for carbon steel piping, it is intended to solves to improve
The problem of pipe pickling efficiency.
On one side, the present invention proposes a kind of circulating pickling device for carbon steel piping, including：Acid cleaning tank, it is used
In receiving pickle；Connecting box, the first side of the acid cleaning tank is arranged on, predetermined number is provided with the connecting box
Acid pickling tube output end, the acid pickling tube output end are connected with one end of pickling pipeline, and the connecting box is passing through the pickling
Pipe output end exports the pickle to the pickling pipeline, to be cleaned to the pickling pipeline；Acid pickling tube inputs
End, the second side of the acid cleaning tank is arranged on, the acid pickling tube input is connected with the other end of the pickling pipeline, is used
Inputted with exporting and flowing through the pickle of the pickling pipeline connecting box to the acid cleaning tank；The acid cleaning tank
It is connected with the connecting box by first circulation pump, the circulating pump for the pickle providing power so that the acid
Washing lotion circulates between the acid cleaning tank, connecting box, pickling pipeline.
Further, the acid cleaning tank is also connected with the connecting box by second circulation pump, the first circulation pump,
Second circulation parallel connection of pumps, the first circulation pump, one end of second circulation pump are connected with the acid cleaning tank respectively, and the other end leads to
Same connecting tube is crossed to be connected with the connecting box.
Further, a leakage fluid dram is provided with the downside of the acid cleaning tank, the leakage fluid dram is used to discharge the pickling
Liquid；Control valve is provided with the leakage fluid dram, to control the leakage fluid dram to discharge the pickle.
Further, the first check valve is provided between the first circulation pump and the connecting tube, it is described to prevent
Pickle is flowed back, and the first valve is provided between the first circulation pump and the acid cleaning tank, to control the pickle to flow into
The first circulation pump；The second check valve is provided between the second circulation pump and the connecting tube, to prevent the pickling
Liquid is flowed back, and the second valve is provided between the second circulation pump and the acid cleaning tank, to control described in the pickle inflow
Second circulation pump.
Further, a pressure gauge is provided with the connecting tube, to measure the pressure value in the pickling pipeline.
Further, the 3rd valve is provided with the connecting tube, to control the pickle to flow into the connection
Case.
Further, it is provided with an isocon between the acid cleaning tank and the connecting tube, the isocon is higher than described the
One circulating pump, second circulation pump.
Further, described device also includes a bottom plate, and the acid cleaning tank, first circulation pump, second circulation pump are fixed
On the bottom plate.
Further, air-vent and manhole are provided with the upside of the acid cleaning tank.
The invention also provides a kind of cycle pickling method for carbon steel piping, including：Pickling pipeline and pickling are filled
Connection is put, detects whether the pickling pipeline meets the requirements；Detect it is qualified after, the pickling pipeline is entered using acid solution
Row pickling；After the pickling terminates, the pickling pipeline is rinsed using neutral solution；After flushing terminates, acidity is used
Solution carries out second of pickling；After the white picking terminates, processing is passivated to the pickling pipeline；At the passivation
After reason terminates, oil flushing is carried out to the pickling pipeline.
Beneficial effects of the present invention are：Circulating pickling device of the present invention and method, by with having installed pipe in place
Road is formed loop with flexible pipe or steel pipe connection, squeezes into the acid solution in sour case with corrosion-resistant pump and circulation flushing is carried out in pipeline, is utilized
Circulating pickling device valve transfer rinses each branch road respectively, and the positive anti-switching punching of acid solution of advancing back can also be entered by acid-proof pump
To wash, the oxide of metallic conduit inner surface, dirty and oily waste degradation are made inner surface of pipeline smooth pieces by circulation flushing, so as to
The construction period is substantially reduced, reduction is secondary to dismount and mount workload, improves operating efficiency.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is general for this area
Logical technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this hair
Bright limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the schematic top plan view for the circulating pickling device that the embodiment of the present invention is used for carbon steel piping；
Fig. 2 is the flow chart for the cycle pickling method that the embodiment of the present invention is used for carbon steel piping.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although this public affairs is shown in accompanying drawing
The exemplary embodiment opened, it being understood, however, that may be realized in various forms the disclosure without the implementation that should be illustrated here
Example is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the disclosure
Scope is completely communicated to those skilled in the art.It should be noted that in the case where not conflicting, the reality in the present invention
Applying the feature in example and embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
As shown in fig.1, it is the schematic top plan view for the circulating pickling device that the embodiment of the present invention is used for carbon steel piping.
Circulating pickling device described in the present embodiment, including：
Acid cleaning tank 1, it is used to accommodate pickle；Connecting box 9, the first side of acid cleaning tank 1 is arranged on, is set on connecting box 9
The acid pickling tube output end of predetermined number is equipped with, acid pickling tube output end is connected with one end of pickling pipeline 10, and connecting box 9 is to logical
Overpickling pipe output end exports pickle to pickling pipeline 10, to be cleaned to pickling pipeline 10；Acid pickling tube input,
The second side of acid cleaning tank 1 is arranged on, acid pickling tube input is connected with the other end of pickling pipeline 10, to connecting box 9 is defeated
The pickle for going out and flowing through acid pickling tube road 10 is inputted to acid cleaning tank 1；Acid cleaning tank 1 is connected with connecting box 9 by first circulation pump 4,
Circulating pump for pickle providing power so that pickle recycle stream between acid cleaning tank 1, connecting box 9, pickling pipeline 10
It is dynamic.A delivery valve 101 is respectively provided with each output end of pickling pipeline 10, to control the solution flowed out from connecting box 9 to enter pickling
In pipeline 10.
Specifically, acid cleaning tank 1 is also connected with connecting box 9 by first circulation pump 5, first circulation pump 4, first circulation
Pump 5 is in parallel, and first circulation pump 4, one end of first circulation pump 5 are connected with acid cleaning tank 1 respectively, and the other end passes through same connecting tube 6
It is connected with connecting box 9.The downside of acid cleaning tank 1 is provided with a leakage fluid dram 11, and leakage fluid dram 11 is used to discharge pickle；Leakage fluid dram 11
On be provided with control valve, to control leakage fluid dram 11 discharge pickle.
Specifically, the first check valve 41 is provided between first circulation pump 4 and connecting tube 6, to prevent pickle from returning
Stream, is provided with the first valve 42 between first circulation pump 4 and acid cleaning tank 1, to control pickle to flow into first circulation pump 4；First
The second check valve 51 is provided between circulating pump 5 and connecting tube 6, to prevent pickle from flowing back, first circulation pump 5 and acid cleaning tank 1
Between be provided with the second valve 52, to control pickle to flow into first circulation pump 5.
Further, a pressure gauge 7 is provided with connecting tube 6, to measure the pressure value in pickling pipeline 10.Connection
The 3rd valve 16 is provided with pipe 6, to control pickle to flow into connecting box 9.An acidproof gate valve 8 is provided with connecting tube 6,
To control solution to flow into connecting box.An isocon 13 is provided between acid cleaning tank 1 and connecting tube 6, isocon is higher than first circulation
Pump 4, first circulation pump 5.
Specifically, the present apparatus also includes a bottom plate 3, and acid cleaning tank 1, first circulation pump 4, first circulation pump 5 are each attached to
On bottom plate 3.The upside of acid cleaning tank 1 is provided with air-vent 12 and manhole 2.
Embodiment two
As shown in fig.2, it is the flow chart for the cycle pickling method that the embodiment of the present invention is used for carbon steel piping.The present embodiment institute
The cycle pickling method for stating carbon steel piping comprises the following steps：
Pickling pipeline is connected by step S101 with acid dip pickle, and whether detection pickling pipeline meets the requirements；
After step S102 detections are qualified, pickling is carried out to pickling pipeline using acid solution；
After step S103 pickling terminates, pickling pipeline is rinsed using neutral solution；
After step S104 flushings terminate, acid solution is used to carry out second of pickling；
After step S105 white pickings terminate, processing is passivated to pickling pipeline；
After step S106 Passivation Treatments terminate, oil flushing is carried out to pickling pipeline.
Specifically, pickling pipeline is connected by step S101 with acid dip pickle, and whether detection pickling pipeline meets the requirements.
Acid dip pickle is first placed on specified location, pickling pipeline and acid dip pickle flexible pipe or fastener for connection, first to needing pickling
Pipeline carry out pressure test, then water flowing checks for leaks.
After step S102 detections are qualified, pickling is carried out to pickling pipeline using acid solution.After pressure testing is qualified, according to pipe
The liquid capacity that must retain in road volume and sour case, calculates volume total during pickling, and then Jia Shui plus liquid detergent, right
After pipeline circulation flushing 0.5 hour, add methenamine, ammonium acid fluoride bulk circulation 5-10 minutes, treat that these medicines all dissolve
When, then add hydrochloric acid, to pipeline circulation flushing 4-6 hours, time of pickling can depending on the pickling effect of pipeline basis.
After step S103 pickling terminates, pickling pipeline is rinsed using neutral solution.When it is determined that above-mentioned pickling is qualified
Afterwards, first most acid pickle in sour case and pipeline is discharged in spent acid cylinder or directly discharged by tube edge, but entered before discharging
Row neutralizes, and notices that the acid solution that big acid-proof pump can't pump out in sour case is discharged with water outwash, is in until newly adding the water in sour case
When neutral (when pH value is 6-7), then all return pipes all should be put into case, and water source not closed, when water rinses,
The pH value for the water that each return pipe flows out constantly is detected with test paper, when the water that each return pipe flows out all is in neutral
Cut off the water supply (when pH value is 7).Before flushing and pickling, appropriate water is added.
After step S104 flushings terminate, acid solution is used to carry out second of pickling.White picking, citric acid is added, is followed
Naphthenic acid washes 5-10 minutes, when the pH value of the aqueous citric acid solution of every primary Ioops is all consistent, is reached with ammoniacal liquor regulation pH value
3.5,0.5-1 hours are then circulated, until the secondary corrosion on test tube is all by after cleared, then are stopped after extending 5-10 minutes
White picking.
After step S105 white pickings terminate, processing is passivated to pickling pipeline.When secondary corrosion by it is clean after, then
Aqueous citric acid solution is adjusted with ammoniacal liquor, then pre- pH value 9-11 adds natrium nitrosum 0.4%, circulation flushing terminates for 4 hours.
After step S106 Passivation Treatments terminate, oil flushing is carried out to pickling pipeline.It is empty with compression after Passivation Treatment terminates
Passivating solution is blown down in cartonning and discharged by gas, then carries out oil flushing, and when starting oil flushing, return duct is all put into case,
Make the aqueous solution emptying of every pipe internal memory, untill not aqueous in flushing oil, circulation oil flushing is empty with compression after 0.5 hour
Oil in pipe is blown back fuel tank by gas.
It is understood that circulating pickling device of the present invention and method, by with having installed pipeline in place with soft
Pipe or steel pipe connection form loop, squeeze into the acid solution in sour case with corrosion-resistant pump and circulation flushing is carried out in pipeline, utilize recycle acid
Cleaning device valve transfer rinses each branch road respectively, and the positive anti-switching of acid solution of advancing back can also be entered by acid-proof pump and is rinsed, circulation
Rinse the oxide of metallic conduit inner surface, dirty and oily waste degradation, make inner surface of pipeline smooth pieces, so as to contract significantly
The short construction period, reduce it is secondary dismounts and mounts workload, improve operating efficiency.
Obviously, those skilled in the art can carry out various changes and modification without departing from the present invention's to the present invention
Spirit and scope.So, if these modifications and variations of the present invention belong to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. circulating pickling device for carbon steel piping, it is characterised in that including：Acid cleaning tank, it is used to accommodate pickle；Connecting box, the first side of the acid cleaning tank is arranged on, the acid pickling tube output of predetermined number is provided with the connecting box End, the acid pickling tube output end is connected with one end of pickling pipeline, and the connecting box is passing through acid pickling tube output end general The pickle is exported to the pickling pipeline, to be cleaned to the pickling pipeline；Acid pickling tube input, it is arranged on the second side of the acid cleaning tank, the acid pickling tube input and the pickling pipeline The other end connects, and is inputted to export and flow through the pickle of the pickling pipeline connecting box to the pickling Case；The acid cleaning tank is connected with the connecting box by first circulation pump, and the circulating pump is dynamic to be provided for the pickle Power so that the pickle circulates between the acid cleaning tank, connecting box, pickling pipeline.
- 2. the circulating pickling device according to claim 1 for carbon steel piping, it is characterised in that the acid cleaning tank and institute State connecting box also to connect by second circulation pump, the first circulation pump, second circulation parallel connection of pumps, the first circulation pump, One end of two circulating pumps is connected with the acid cleaning tank respectively, and the other end is connected by same connecting tube with the connecting box.
- 3. the circulating pickling device according to claim 2 for carbon steel piping, it is characterised in thatA leakage fluid dram is provided with the downside of the acid cleaning tank, the leakage fluid dram is used to discharge the pickle；Control valve is provided with the leakage fluid dram, to control the leakage fluid dram to discharge the pickle.
- 4. the circulating pickling device according to claim 3 for carbon steel piping, it is characterised in thatThe first check valve is provided between the first circulation pump and the connecting tube, to prevent the pickle from flowing back, institute State and the first valve is provided between first circulation pump and the acid cleaning tank, to control the pickle to flow into the first circulation Pump；The second check valve is provided between the second circulation pump and the connecting tube, it is described to prevent the pickle from flowing back The second valve is provided between second circulation pump and the acid cleaning tank, to control the pickle to flow into the second circulation pump.
- 5. the circulating pickling device according to claim 3 for carbon steel piping, it is characterised in that set in the connecting tube A pressure gauge is equipped with, to measure the pressure value in the pickling pipeline.
- 6. the circulating pickling device according to claim 3 for carbon steel piping, it is characterised in that set in the connecting tube The 3rd valve is equipped with, to control the pickle to flow into the connecting box.
- 7. the circulating pickling device according to claim 6 for carbon steel piping, it is characterised in thatAn isocon is provided between the acid cleaning tank and the connecting tube, the isocon is higher than the first circulation pump, second Circulating pump.
- 8. the circulating pickling device for carbon steel piping according to claim 1-7, it is characterised in thatDescribed device also includes a bottom plate, and the acid cleaning tank, first circulation pump, second circulation pump are each attached on the bottom plate.
- 9. the circulating pickling device according to claim 8 for carbon steel piping, it is characterised in that on the upside of the acid cleaning tank It is provided with air-vent and manhole.
- A kind of 10. cycle pickling method for carbon steel piping, it is characterised in that including：Pickling pipeline is connected with acid dip pickle, detects whether the pickling pipeline meets the requirements；Detect it is qualified after, using acid solution to the pickling pipeline carry out pickling；After the pickling terminates, the pickling pipeline is rinsed using neutral solution；After flushing terminates, second of pickling is carried out using acid solution；After the white picking terminates, processing is passivated to the pickling pipeline；After the Passivation Treatment terminates, oil flushing is carried out to the pickling pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388071.3A CN107829102A (en) | 2017-12-20 | 2017-12-20 | Circulating pickling device and method for carbon steel piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388071.3A CN107829102A (en) | 2017-12-20 | 2017-12-20 | Circulating pickling device and method for carbon steel piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107829102A true CN107829102A (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711388071.3A Pending CN107829102A (en) | 2017-12-20 | 2017-12-20 | Circulating pickling device and method for carbon steel piping |
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| CN (1) | CN107829102A (en) |
Cited By (3)
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| CN109338388A (en) * | 2018-12-27 | 2019-02-15 | 首钢水城钢铁(集团)赛德建设有限公司 | Circulating pipeline pickling device and method |
| CN114000158A (en) * | 2021-10-28 | 2022-02-01 | 泰安航天特种车有限公司 | Automatic pickling equipment suitable for steel pipe inner wall |
| CN114999964A (en) * | 2022-06-16 | 2022-09-02 | 华海清科股份有限公司 | Method, device and system for cleaning supply channel for wafer processing |
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| CN109338388A (en) * | 2018-12-27 | 2019-02-15 | 首钢水城钢铁(集团)赛德建设有限公司 | Circulating pipeline pickling device and method |
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| CN114000158A (en) * | 2021-10-28 | 2022-02-01 | 泰安航天特种车有限公司 | Automatic pickling equipment suitable for steel pipe inner wall |
| CN114000158B (en) * | 2021-10-28 | 2023-11-28 | 泰安航天特种车有限公司 | Automatic pickling equipment suitable for steel pipe inner wall |
| CN114999964A (en) * | 2022-06-16 | 2022-09-02 | 华海清科股份有限公司 | Method, device and system for cleaning supply channel for wafer processing |
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