CN216585237U - Pickling device - Google Patents
Pickling device Download PDFInfo
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- CN216585237U CN216585237U CN202123252711.2U CN202123252711U CN216585237U CN 216585237 U CN216585237 U CN 216585237U CN 202123252711 U CN202123252711 U CN 202123252711U CN 216585237 U CN216585237 U CN 216585237U
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- acid
- pickling
- connecting pipe
- filter screen
- pickling tank
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Abstract
The utility model relates to a pickling device, which comprises a pickling tank and a communicating component; the pickling tank is used for containing acid liquor, the outer walls of two opposite sides of the pickling tank are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity of the pickling tank; two ends of the communicating component are respectively communicated with the acid outlet and the acid return port to form a closed loop so as to enable the acid liquid to circularly flow; on one hand, the pipeline to be cleaned is placed in the pickling tank by arranging the pickling tank, so that the derusting degree of the pipeline to be cleaned is convenient to check; on the other hand, the communicating component is arranged, the communicating component and the pickling tank form a closed loop, and acid liquor flows in the closed loop in a circulating and reciprocating mode, so that the pickling quality and the cleaning efficiency are improved, and the cleaning time is shortened.
Description
Technical Field
The utility model belongs to the technical field of the pickling line technique and specifically relates to a pickling line.
Background
At present, in the process of installing a metallurgical pipeline, the pipeline with high requirement on cleanliness needs to be subjected to acid cleaning. The acid cleaning is also called chemical cleaning, the acid cleaning rust removal is that oxides such as ferroferric oxide, ferric oxide and ferric oxide are subjected to chemical reaction with acid liquor and dissolved in the acid liquor to expose the metal nature of the inner wall of the pipeline, so that the aim of rust removal is achieved, and after subsequent passivation treatment, air drying or blow drying, primer is coated to prevent the pipeline from being rusted.
The traditional chemical cleaning method for the pipeline can adopt a tank leaching method or a system circulation method. The tank-soaking method is mainly a process of putting the pipeline and the pipe fittings in a container filled with acid liquor for soaking for a certain time and then removing the rust in the pipeline. The systemic circulation method is a process for removing rust by performing systemic circulation in a pipeline after acid liquor is pressurized by an acid-resistant pump.
However, the tank leaching method is adopted, the chemical reaction is slow, the cleaning efficiency is low, and the cleaning time is increased; by adopting a system circulation method, the rust removal degree is invisible, and the problems that the oxide on the inner wall of the pipeline cannot be completely removed, the inner wall of the pipeline is over-corroded and the like can be caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a pickling device, which has the advantages of improving the cleaning efficiency and shortening the cleaning time; meanwhile, the technical problems that the oxide on the inner wall of the pipeline cannot be thoroughly removed, the inner wall of the pipeline is over-corroded and the like are solved.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a pickling device comprises a pickling tank and a communicating component; the pickling tank is used for containing acid liquor, the outer walls of two opposite sides of the pickling tank are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity of the pickling tank; two ends of the communicating component are respectively communicated with the acid outlet and the acid return port to form a closed loop so as to enable the acid liquor to flow circularly.
Preferably, the communication assembly of the pickling apparatus provided by the present invention comprises a first connection pipe, a second connection pipe and an acid-proof pump, wherein the acid inlet of the first connection pipe is communicated with the acid outlet, and the acid outlet of the first connection pipe is communicated with the acid inlet of the acid-proof pump; the inflow end of the second connecting pipe is communicated with the acid outlet pipe of the acid-proof pump, and the outflow end of the second connecting pipe is communicated with the acid return port.
Preferably, the utility model provides a pickling device still includes two control valves, two the control valve set up respectively in go out the sour mouth with return on the sour mouth, the control valve is used for controlling the flow of acidizing fluid.
Preferably, the utility model provides a pickling device, be provided with first filter screen in the first connecting pipe, be provided with the second filter screen in the second connecting pipe, first filter screen with the distance is predetermine at second filter screen interval.
Preferably, in the pickling apparatus provided by the present invention, the first connecting pipe is provided with a first sewage draining valve, and the first sewage draining valve is located on a side of the first filter screen away from the acid-resistant pump; and a second blowoff valve is arranged on the second connecting pipe and is positioned at one side of the acid-proof pump, which faces the second filter screen.
Preferably, in the pickling apparatus provided by the present invention, the communicating component further includes an electric tracing band, and the electric tracing band is wound around the outer peripheral walls of the first connecting pipe and the second connecting pipe; the electric tracing band is used for heating the acid liquor.
Preferably, the utility model provides a pickling plant, the acid-proof pump adopts lining fluorine pipeline centrifugal pump.
Preferably, the utility model provides a pickling plant, the control valve adopts the manual ball valve of lining fluorine flange.
Preferably, in the pickling apparatus of the present invention, the pickling tank includes a pipe body, a first cover plate and a second cover plate, the first cover plate is covered at one end of the pipe body, and the second cover plate is covered at the other end of the pipe body; the periphery wall of the pipe body is provided with a notch, and the notch extends along the central axis direction of the pipe body.
Preferably, the utility model provides a pickling device, first filter screen with the second filter screen all adopts stainless steel.
To sum up, the utility model discloses a beneficial technological effect does: the pickling device comprises a pickling tank and a communicating assembly; the pickling tank is used for containing acid liquor, the outer walls of two opposite sides of the pickling tank are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity of the pickling tank; two ends of the communicating component are respectively communicated with the acid outlet and the acid return port to form a closed loop so as to enable the acid liquid to circularly flow; on one hand, the pipeline to be cleaned is placed in the pickling tank by arranging the pickling tank, so that the derusting degree of the pipeline to be cleaned is convenient to check; on the other hand, the communicating component is arranged, the communicating component and the pickling tank form a closed loop, and acid liquor flows in the closed loop in a circulating and reciprocating mode, so that the pickling quality and the cleaning efficiency are improved, and the cleaning time is shortened.
Drawings
Fig. 1 is a schematic view of an overall structure of a pickling apparatus according to an embodiment of the present invention.
Fig. 2 is a sectional view of a pickling apparatus according to an embodiment of the present invention.
In the figure, 1, a pickling device; 10. a pickling tank; 101. a first cover plate; 102. a second cover plate; 103. a pipe body; 104. a cavity; 20. a communicating component; 201. a first connecting pipe; 2011. a first filter screen; 2012. a first waste valve; 202. a second connecting pipe; 2021. a second filter screen; 2022. a second blowoff valve; 203. an acid-resistant pump; 30. a control valve; 2. and (4) acid liquor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a pickling apparatus 1 according to the present invention includes a pickling tank 10 and a communication assembly 20; the pickling tank 10 is used for containing the acid liquid 2, the outer walls of two opposite sides of the pickling tank 10 are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity 104 of the pickling tank 10; by arranging the pickling tank 10, the acid liquor 2 is contained in the pickling tank 10, and in the using process, the pipeline to be cleaned is placed in the acid liquor 2, so that the iron rust on the pipeline to be cleaned is dissolved in the acid liquor 2.
Illustratively, the pickling tank 10 includes four vertical plates and a bottom plate, the four vertical plates are all arranged perpendicular to the bottom plate, the four vertical plates are sequentially connected end to form a rectangular frame, and the bottom plate is covered at the bottom end of the rectangular frame, so that the four vertical plates and the bottom plate jointly form the cavity 104; during use, acid 2 is contained within the cavity 104.
In this embodiment, the pickling tank 10 includes a pipe body 103, a first cover plate 101, and a second cover plate 102, where the first cover plate 101 covers one end of the pipe body 103, and the second cover plate 102 covers the other end of the pipe body 103; a notch is formed in the outer peripheral wall of the tube body 103, and extends along the central axis direction of the tube body 103; by adopting the pipe body 103 to manufacture the pickling tank 10, the manufacturing process is simple and convenient, and the manufacturing cost is low.
Specifically, the pipe body 103 is a finished large-diameter pipe, and a water level quality certification document of the large-diameter pipe needs to be checked before the pickling tank 10 is manufactured; then, the first cover plate 101 and the second cover plate 102 are respectively covered on two ends of the pipe 103 to form a cavity 104 of the pickling tank 10.
Wherein, the size of the cavity 104 of the pickling tank 10 can be controlled by adjusting the pipe diameter of the pipe body 103, thereby improving the applicability of the pickling device 1 to pipelines to be cleaned in different models.
For example, the first cover plate 101 and the second cover plate 102 can be connected to the tube 103 by welding; of course, the first cover plate 101 and the second cover plate 102 can be connected to the tube 103 by bolts. In the first apron 101 and the second apron 102 all adopt the welded mode to be connected with the realizable mode of body 103, all weld the back with the body 103 welding at first apron 101 and second apron 102, do the kerosene leak test to each welding seam and detect, from this, in the use, avoid the descaling bath 10 weeping, improved cleaning efficiency.
Taking the orientation shown in fig. 1 as an example, the first cover 101 is located on the left side of the tube 103, and the second cover 102 is located on the right side of the tube 103. In the use, the axis of body 103 is parallel with the horizontal plane, and the opening is seted up in the upper portion of body 103, treats that the washing pipeline passes through the opening and puts into acidizing fluid 2.
Specifically, the acid outlet is opened on first apron 101, and the acid outlet extends along the axis direction of body 103, and the acid return port is opened on second apron 102, and the acid return port extends along the axis direction of body 103, and the acid outlet corresponds the setting with the acid return port.
In this embodiment, two ends of the communicating component 20 are respectively communicated with the acid outlet and the acid return port to form a closed loop, so that the acid liquid 2 flows in a circulating manner; on one hand, the communicating component 20 is communicated with the pickling tank 10 to form a closed loop, so that the acid liquid 2 can flow back and forth in a circulating way, and the pickling quality and the cleaning efficiency are improved; through setting up the descaling bath 10, be convenient for will treat that the pipeline that washs puts into the descaling bath 10, from this, be convenient for treat that washs the pipeline degree of removing rust and observe and control.
The using process of the pickling apparatus 1 provided in this embodiment is as follows: the acid liquor 2 is contained in the pickling tank 10, then the pipeline to be cleaned is placed in the acid liquor 2, the acid liquor 2 flows into the communicating component 20 through the acid outlet, the acid liquor 2 flowing into the communicating component 20 flows back into the pickling tank 10 through the acid return port, and the pickling circularly flows back and forth in the above manner, so that the cleaning efficiency is improved, and the cleaning time is shortened; meanwhile, the derusting degree of the pipeline to be cleaned can be checked at any time, so that the pickling quality is improved.
Further, in the present embodiment, the communication assembly 20 includes a first connection pipe 201, a second connection pipe 202, and an acid-proof pump 203, the acid inlet of the first connection pipe 201 is communicated with the acid outlet, and the acid outlet of the first connection pipe 201 is communicated with the acid inlet of the acid-proof pump 203; the inflow end of the second connecting pipe 202 is communicated with the acid outlet pipe of the acid-proof pump 203, and the outflow end of the second connecting pipe 202 is communicated with the acid return port; by arranging the acid-proof pump 203, in the using process, the acid liquor 2 in the pickling tank 10 is driven by the acid-proof pump 203 to sequentially flow back to the pickling tank 10 through the first connecting pipe 201, the acid-proof pump 203 and the second connecting pipe 202, so that the acid liquor 2 circularly flows back and forth, the cleaning efficiency is improved, and the cleaning time is shortened.
Illustratively, the acid-proof pump 203 is a fluorine-lined pipe centrifugal pump. Of course, the acid-resistant pump 203 may also be a hard-lined rubber pump or a ceramic pump.
Further, the acid washing device 1 provided in this embodiment further includes two control valves 30, the two control valves 30 are respectively disposed on the acid outlet and the acid return port, and the control valves 30 are used for controlling the flow rate of the acid solution 2; by arranging the control valve 30, the flow rate of the acid liquid 2 is conveniently controlled, and the pickling quality is improved.
Specifically, one end of one of the control valves 30 is connected to the acid outlet, and the other end is connected to the acid inlet of the first connection; one end of the other control valve 30 is connected to the acid return port, and the other end is connected to the outflow end of the second connection pipe 202.
Illustratively, the control valve 30 is a fluorine lined flange manual ball valve. Of course, the control valve 30 may also be a foot valve. In an implementation where the control valve 30 is a fluorine lined flange manual ball valve, the flow rate of the acid liquid 2 is in the range of 40m3/h-60m3The flow speed ranges from 0.3m/s to 0.45m/s, and in the embodiment, the flow of the acid liquid 2 is 50m3/h。
With reference to fig. 2, in this embodiment, a first filter screen 2011 is disposed in the first connecting pipe 201, a second filter screen 2021 is disposed in the second connecting pipe 202, and the first filter screen 2011 and the second filter screen 2021 are spaced by a preset distance; through setting up first filter screen 2011 and second filter screen 2021, from this, be convenient for filter the impurity in the acidizing fluid 2, improve cleaning quality.
Through setting up first filter screen 2011 and second filter screen 2021 interval preset distance, from this, acidizing fluid 2 carries out twice filtration at a circulation in-process, from this, has improved acidizing fluid 2's cleanliness factor, and then has improved cleaning efficiency.
For example, the first filter screen 2011 and the second filter screen 2021 are made of stainless steel; of course, the first filter 2011 and the second filter 2021 may be made of other acid-resistant materials.
Specifically, first filter screen 2011 and first connecting pipe 201 looks adaptation, the internal perisporium wall that the periphery wall of first filter screen 2011 and first connecting pipe 201 say is connected, and first filter screen 2011 is perpendicular with the axis of first connecting pipe 201.
The second filter screen 2021 is adapted to the second connection pipe 202, an outer circumferential wall of the second filter screen 2021 is connected to an inner circumferential wall of the second connection pipe 202, and a central axis of the second filter screen 2021 is perpendicular to a central axis of the second connection pipe 202.
Further, in this embodiment, a first blowoff valve 2012 is disposed on the first connecting pipe 201, and the first blowoff valve 2012 is located on a side of the first filter screen 2011 facing away from the acid-resisting pump 203; a second blowoff valve 2022 is arranged on the second connecting pipe 202, and the second blowoff valve 2022 is positioned on one side of the second filter screen 2021 facing the acid-proof pump 203; by arranging the first blowdown valve 2012 and the second blowdown valve 2022, it is convenient to discharge part of the acid liquid 2.
Specifically, taking the orientation shown in fig. 2 as an example, the first blowoff valve 2012 is located on the left side of the first filter 2011, and the second blowoff valve 2022 is located on the left side of the second filter 2021. In the using process, after the pickling tank is cleaned for a certain time, the first blowdown valve 2012 and the second blowdown valve 2022 are opened, part of acid liquor 2 is discharged through the first blowdown valve 2012 and the second blowdown valve 2022, then the first blowdown valve 2012 and the second blowdown valve 2022 are closed, and new acid liquor 2 is added into the pickling tank 10, so that the pickling speed is increased, and the pickling quality and the cleaning efficiency are improved.
Further, in the present embodiment, the communication assembly 20 further includes an electric tracing band, and the electric tracing band is wound around the outer circumferential walls of the first connecting pipe 201 and the second connecting pipe 202; the electric tracing band is used for heating the acid liquid 2; by arranging the electric tracing band, the electric tracing band heats the acid liquid 2 which flows circularly so as to raise the temperature of the acid liquid 2 to a specified temperature, thereby improving the cleaning quality and the cleaning efficiency and shortening the cleaning time.
The using process of the pickling apparatus 1 provided in this embodiment is as follows: two ends of the communicating component 20 are respectively communicated with the acid outlet and the acid return port to form a closed loop; after the communicating component 20 is installed, clean water is used for leakage test detection, and the pipeline to be cleaned is subjected to acid cleaning after the detection is qualified. The acid liquor 2 is added into the pickling tank 10, then the pipeline to be cleaned is placed into the acid liquor 2, the acid-resistant pump 203 is started, the acid-resistant pump 203 drives the acid liquor 2 to circularly and repeatedly flow in a closed loop, and the electric tracing band heats the acid liquor 2 which circularly flows, so that the pickling speed of the pipeline to be cleaned is accelerated, and the pickling quality and efficiency are improved.
The pickling device 1 provided by the application comprises a pickling tank 10 and a communication assembly 20; the pickling tank 10 is used for containing the acid liquid 2, the outer walls of two opposite sides of the pickling tank 10 are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity 104 of the pickling tank 10; two ends of the communicating component 20 are respectively communicated with the acid outlet and the acid return port to form a closed loop so as to enable the acid liquid 2 to circularly flow; on one hand, the pipeline to be cleaned is placed in the pickling tank 10 by arranging the pickling tank 10, so that the derusting degree of the pipeline to be cleaned is convenient to check; on the other hand, by arranging the communicating component 20, the communicating component 20 and the pickling tank 10 form a closed loop, and the acid liquid 2 circularly flows back and forth in the closed loop, so that the pickling quality and the cleaning efficiency are improved, and the cleaning time is shortened.
The utility model provides a, have following advantage: the device has the advantages of simple structure, easy manufacture, convenient operation, repeated use and convenient transportation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (10)
1. A pickling device is characterized in that: comprises a pickling tank and a communication assembly;
the pickling tank is used for containing acid liquor, the outer walls of two opposite sides of the pickling tank are respectively provided with an acid outlet and an acid return port, and the acid outlet and the acid return port are both communicated with the cavity of the pickling tank;
two ends of the communicating component are respectively communicated with the acid outlet and the acid return port to form a closed loop so as to enable the acid liquor to flow circularly.
2. The pickling device according to claim 1, wherein: the communication assembly comprises a first connecting pipe, a second connecting pipe and an acid-proof pump, the acid inlet end of the first connecting pipe is communicated with the acid outlet, and the acid outlet end of the first connecting pipe is communicated with the acid inlet pipe of the acid-proof pump;
the inflow end of the second connecting pipe is communicated with the acid outlet pipe of the acid-proof pump, and the outflow end of the second connecting pipe is communicated with the acid return port.
3. The pickling device according to claim 1, wherein: the acid return device is characterized by further comprising two control valves, wherein the two control valves are respectively arranged on the acid outlet and the acid return port and are used for controlling the flow of the acid liquor.
4. The pickling device according to claim 2, characterized in that: a first filter screen is arranged in the first connecting pipe, a second filter screen is arranged in the second connecting pipe, and the first filter screen and the second filter screen are separated by a preset distance.
5. The pickling device according to claim 4, wherein: a first sewage discharge valve is arranged on the first connecting pipe and is positioned on one side, away from the acid-resistant pump, of the first filter screen;
and a second blowoff valve is arranged on the second connecting pipe and is positioned at one side of the acid-proof pump, which faces the second filter screen.
6. The pickling device according to claim 2, characterized in that: the communication assembly further comprises an electric tracing band, and the electric tracing band is wound on the outer peripheral walls of the first connecting pipe and the second connecting pipe;
the electric tracing band is used for heating the acid liquor.
7. The pickling device according to claim 2, characterized in that: the acid-proof pump adopts a fluorine-lined pipeline centrifugal pump.
8. The pickling device according to claim 3, wherein: the control valve adopts a fluorine-lined flange manual ball valve.
9. The pickling device according to claim 1, wherein: the pickling tank comprises a pipe body, a first cover plate and a second cover plate, wherein the first cover plate is arranged at one end of the pipe body in a covering mode, and the second cover plate is arranged at the other end of the pipe body in a covering mode;
the periphery wall of the pipe body is provided with a notch, and the notch extends along the central axis direction of the pipe body.
10. The pickling device according to claim 4, wherein: the first filter screen and the second filter screen are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252711.2U CN216585237U (en) | 2021-12-22 | 2021-12-22 | Pickling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123252711.2U CN216585237U (en) | 2021-12-22 | 2021-12-22 | Pickling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216585237U true CN216585237U (en) | 2022-05-24 |
Family
ID=81617428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123252711.2U Active CN216585237U (en) | 2021-12-22 | 2021-12-22 | Pickling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216585237U (en) |
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2021
- 2021-12-22 CN CN202123252711.2U patent/CN216585237U/en active Active
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