CN107502916A - A kind of Multistage Control formula steel pipe corrosion-proof pickling control system - Google Patents
A kind of Multistage Control formula steel pipe corrosion-proof pickling control system Download PDFInfo
- Publication number
- CN107502916A CN107502916A CN201710970698.3A CN201710970698A CN107502916A CN 107502916 A CN107502916 A CN 107502916A CN 201710970698 A CN201710970698 A CN 201710970698A CN 107502916 A CN107502916 A CN 107502916A
- Authority
- CN
- China
- Prior art keywords
- plc
- power supply
- output end
- comparator
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (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 invention discloses a kind of Multistage Control formula steel pipe corrosion-proof pickling control system, including descaling bath, absorption tower, suction mist pipe, air-introduced machine, acid mist treatment tower and PLC；First switch controlling organization is provided between heater and power supply, second switch controlling organization is provided between air-introduced machine and power supply, liquid level sensor and temperature sensor are additionally provided with inside descaling bath；The output end of liquid level sensor and the in-phase input end of first comparator are connected, and the output end of first comparator is connected with PLC, and the first power supply output end of PLC is connected with first switch controlling organization；The output end of temperature sensor is connected with the in-phase input end of the second comparator, and the output end of the second comparator is connected with PLC, and the first power supply output end of PLC is connected with second switch controlling organization.The present invention realizes that the open and close to heater and air-introduced machine automatically control by Multistage Control.
Description
Technical field
The present invention relates to steel pipe corrosion-proof field, more particularly to a kind of Multistage Control formula steel pipe corrosion-proof pickling control system.
Background technology
Steel pipe corrosion-proof refer to steel pipe when medium using with the steel pipe in transport by use environment and pumped (conveying) medium
Drawing shadow corrodes steel pipe generation chemistry or electrochemical reaction.Under normal circumstances, need to enter steel pipe before steel pipe corrosion-proof
Row pre-treatment, pickling are then the more conventional mode of one of which.
Pickling is using the oxide skin and the method for rust on acid solution removal steel surface, is cleaning metal surface
A kind of method.Generally with pre- film（pre-passivating treatment）Carry out together.Product is typically immersed into sulfuric acid etc.
The aqueous solution, to remove the films such as the oxide of metal surface.It is pre-treatment or the intermediate treatment of the techniques such as plating, enamel, rolling.
And use electric control system（Such as PLC）Whole acid cleaning process is controlled.Application number is such as
CN201620455618.1 patent of invention then discloses a kind of circulation flushing formula tubing acid dip pickle, including descaling bath assembly,
Acid tank and electric control system are stored up, the descaling bath assembly both ends are provided with inlet or liquid outlet, and the acid solution stored up in acid tank passes through
Acid solution is entered descaling bath assembly by sour pump, sour pumping hole check-valves by inlet, and acid solution passes through from the liquid outlet of descaling bath assembly
Control valve is flowed into storage acid tank, and control valve is connected with electric control system.
During pickling, due to needing that the acid ＆ alkali liquid in descaling bath is heated, therefore part acid ＆ alkali liquid is had
Volatilized due to heating, if not using corresponding mode to be handled, the pollution of environment, therefore existing skill can be caused
Art can be solved the above problems using absorption plant and air-introduced machine.But prior art can't be according to actual conditions to heater
Open and close with air-introduced machine are automatically controlled, and add the labor intensity of worker, if in the case where acid ＆ alkali liquid is inadequate
Heated, have probability and burn out machine, and unlatching air-introduced machine then can waste of resource when heating-up temperature is inadequate.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Multistage Control formula steel pipe corrosion-proof pickling control
System, solving prior art will not automatically control according to open and close of the actual conditions to heater and air-introduced machine, increase
The problem of having added the labor intensity of worker.
The purpose of the present invention is achieved through the following technical solutions：A kind of Multistage Control formula steel pipe corrosion-proof pickling control
System, including descaling bath, absorption tower, suction mist pipe, air-introduced machine, acid mist treatment tower and PLC, absorption tower are arranged at descaling bath
Surface, absorption tower top, which is provided with, inhales mist pipe, inhales mist pipe and is connected by air-introduced machine with acid mist treatment tower, air-introduced machine connects with power supply
Connect, heater is additionally provided with inside described descaling bath, described heater is also connected with power supply；The heating control of PLC
Output end processed is connected with heater, and the blast velocity control output end of PLC is connected with air-introduced machine；
First switch controlling organization is provided between described heater and power supply, is provided between described air-introduced machine and power supply
Second switch controlling organization, liquid level sensor and temperature sensor are additionally provided with inside described descaling bath；
The output end of described liquid level sensor and the in-phase input end of first comparator connect, the anti-phase input of first comparator
Terminate and be connected into corresponding reference signal, the output end of first comparator with PLC, the first power supply control of PLC
Output end processed is connected with first switch controlling organization；
The output end of described temperature sensor is connected with the in-phase input end of the second comparator, the anti-phase input of the second comparator
Terminate and be connected into corresponding reference signal, the output end of the second comparator with PLC, the first power supply control of PLC
Output end processed is connected with second switch controlling organization；
The reference signal of the inverting input of the inverting input of first comparator and the second comparator access is carried by PLC
For.
Further, described switching control mechanism includes triode Q, resistance R1, resistance R2 and relay K, PLC control
The power supply output end of device is connected by resistance R1 with triode Q base stage, and triode Q emitter stage is connect by resistance R2
Ground, triode Q colelctor electrode are connected with relay K coil-end, relay K tip side be arranged at air-introduced machine/heater with
Between power supply.
Further, described relay K is also parallel with sustained diode.
Further, described switching control mechanism includes PMOS transistor, the grid and PLC of PMOS transistor
The connection of power supply output end, the source electrode of PMOS transistor is connected with power supply, the drain of PMOS transistor and air-introduced machine/heating
Device connects.
Further, described descaling bath is three and be arranged in parallel.
Further, described pickling control device also includes two voltage transformation modules, be respectively arranged at air-introduced machine with
Between power supply and between heater and power supply.
Further, described PLC is also connected with touch display screen.
The beneficial effects of the invention are as follows：The present invention realizes the open and close to heater and air-introduced machine by Multistage Control
Automatically controlled, specifically：When liquid level sensor detects that liquid level reach a certain height（It is anti-phase defeated by first comparator
The reference signal for entering end input is realized）, PLC control heater be connected with power supply, heater can be begun to warm up；Heating
After device heating, when temperature sensor detects that temperature reach a certain height（Inputted by the second comparator inverting input
Reference signal is realized）, PLC control air-introduced machine be connected with power supply, air-introduced machine can start air inducing, securely and reliably.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is circuit connection diagram of the present invention；
Fig. 3 is the schematic diagram of the one of embodiment of switching control mechanism；
Fig. 4 is the schematic diagram of switching control mechanism another embodiment；
In figure, 1- descaling baths, 2- absorption towers, 3- suction mist pipes, 4- air-introduced machines, 5- acid mist treatment towers.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
As shown in figure 1, a kind of Multistage Control formula steel pipe corrosion-proof pickling control system, including descaling bath 1, absorption tower 2, suction mist
Pipe 3, air-introduced machine 4, acid mist treatment tower 5 and PLC, absorption tower 2 are arranged at directly over descaling bath 1, and the top of absorption tower 2 is set
Have and inhale mist pipe 3, inhale mist pipe 3 and be connected by air-introduced machine 4 with acid mist treatment tower 5, air-introduced machine 4 is connected with power supply, described descaling bath 1
Inside is additionally provided with heater, and described heater is also connected with power supply；The computer heating control output end and heater of PLC
Connection, the blast velocity control output end of PLC are connected with air-introduced machine 4；
First switch controlling organization is provided between described heater and power supply, is set between described air-introduced machine 4 and power supply
There is second switch controlling organization, liquid level sensor and temperature sensor are additionally provided with inside described descaling bath 1；
The output end of described liquid level sensor and the in-phase input end of first comparator connect, the anti-phase input of first comparator
Terminate and be connected into corresponding reference signal, the output end of first comparator with PLC, the first power supply control of PLC
Output end processed is connected with first switch controlling organization；
The output end of described temperature sensor is connected with the in-phase input end of the second comparator, the anti-phase input of the second comparator
Terminate and be connected into corresponding reference signal, the output end of the second comparator with PLC, the first power supply control of PLC
Output end processed is connected with second switch controlling organization；
The reference signal of the inverting input of the inverting input of first comparator and the second comparator access is carried by PLC
For.
The principle of the present invention is as follows：Acid ＆ alkali liquid is inserted into descaling bath 1 first（Steel pipe is in descaling bath 1）In, then
Pickling is carried out to steel pipe after being heated by the heater in descaling bath 1 to acid ＆ alkali liquid.In acid cleaning process, in descaling bath 1
Heated acid ＆ alkali liquid part can be evaporated, and the part evaporated is sucked into absorption tower 2 successively by air-introduced machine 4 and inhales mist pipe 3
And finally enter acid mist treatment tower 5 and handled.
To avoid the opportunity that heater and air-introduced machine 4 open and close inaccurate（Enter in the case where acid ＆ alkali liquid is inadequate
Row heating then has probability and burns out machine, and unlatching air-introduced machine then can waste of resource when heating-up temperature is inadequate）, by setting
The liquid level sensor and the testing result of temperature sensor being placed in descaling bath 1 carry out co- controlling to air-introduced machine 4, specifically：
（1）When liquid level sensor detects that liquid level reach a certain height（The ginseng inputted by first comparator inverting input
Examine signal realization）, now the amount of acid ＆ alkali liquid meet acid washing conditions enough, first comparator exports high level signal and controlled to PLC
Device, it is otherwise low level signal, PLC sends high level signal, first switch control machine to first switch controlling organization
Structure is turned on after receiving high level signal so that heater is connected with power supply, and heater can be begun to warm up；
（2）After heater heating, when temperature sensor detects that temperature reach a certain height（It is anti-phase defeated by the second comparator
The reference signal for entering end input is realized）, now the evaporation rate of acid ＆ alkali liquid just may require that is absorbed by air-introduced machine 4, and second
Otherwise it is low level signal that comparator, which exports high level signal to PLC, PLC sends high to second switch mechanism
Level signal, turn on after second switch authorities to high level signal so that air-introduced machine 4 is connected with power supply, and air-introduced machine 4 can be with
Start air inducing.
And after the completion of pickling, liquid level can reduce due to volatilization and/or heater heating stop temperature can reduce,
When meeting one of condition, air-introduced machine 4/ and/or heater can then close automatically.
In addition, the inverting input of the inverting input of first comparator and the second comparator access reference signal by
PLC provides, and the reference signal is used to set C.T.
More preferably, in one of the embodiments, as shown in figure 3, described switching control mechanism includes triode Q, electricity
R1, resistance R2 and relay K are hindered, the output end of the power supply output end of PLC passes through resistance R1 and triode Q base
Pole is connected, and triode Q emitter stage is grounded by resistance R2, and triode Q colelctor electrode is connected with relay K coil-end, after
Electrical equipment K tip side is arranged at air-introduced machine/between heater and power supply.
Specifically, when first comparator inverting input reference signal be higher than in-phase input end input signal, should
Comparator output low level to PLC, the first power supply output end of PLC also exports low level signal to three
Pole pipe Q base stage, now triode Q end, relay K coil-end no current flows through, and is open circuit between power supply and heater,
Heater does not start；When first comparator inverting input reference signal be less than in-phase input end input signal, now
The comparator exports high level to PLC, the power supply output end of PLC also exports high level signal to three
Pole pipe Q base stage, triode Q conductings, relay coil have electric current to flow through, and power supply turns on backward heater with heater and provides electricity
Source, now heater starting.
After heater starting, acid ＆ alkali liquid is heated.When the reference signal of the inverting input of the second comparator is higher than
The input signal of in-phase input end（Not up to preset temperature）, comparator output low level to PLC, PLC
Second source control output end also export low level signal to triode Q base stage, now triode Q ends, relay K's
Coil-end no current flows through, and does not start for open circuit, air-introduced machine 4 between power supply and air-introduced machine 4；When the anti-phase input of the second comparator
The reference signal at end is less than the input signal of in-phase input end, and now the comparator exports high level to PLC, PLC controls
The second source control output end of device processed also exports high level signal to triode Q base stage, triode Q conductings, relay line
Circle has electric current to flow through, and power supply turns on backward air-introduced machine 4 with air-introduced machine 4 and provides power supply, and now air-introduced machine 4 starts.
More preferably, in this embodiment, described relay K is also parallel with sustained diode.When triode Q can be by leading
It is logical to be changed into ending, if without sustained diode, larger inverse electromotive force will be produced at coil both ends so that triode Q is damaged
It is bad.
More preferably, in another embodiment, as shown in figure 4, described switching control mechanism includes PMOS transistor,
The grid of PMOS transistor and the output end of comparator are connected, and the source electrode of PMOS transistor is connected with power supply, PMOS transistor
Drain is connected with the heater of air-introduced machine 4/.
Specifically, when the grid of comparator output high level to PMOS transistor, whole PMOS transistor conducting so that
The heater of air-introduced machine 4/ is connected with power supply, the heater starting of air-introduced machine 4/；When comparator exports low level to PMOS transistor
During grid, whole PMOS transistor is not turned on so that motor disconnects with the heater of air-introduced machine 4/, and the heater of air-introduced machine 4/ does not open
It is dynamic.
More preferably, as shown in figure 1, in any one embodiment, described descaling bath 1 is three and be arranged in parallel.
More preferably, in the present embodiment, described pickling control device also includes two voltage transformation modules, sets respectively
Between air-introduced machine 4 and power supply and between heater and power supply.The electricity of size is corresponded to for providing air-introduced machine 4 and heater
Pressure.
More preferably, in the present embodiment, described PLC is also connected with touch display screen, and touch display screen is used for
Set and show the heating of heater, the rotating speed of air-introduced machine, and the break-make situation of two switching control mechanisms of display.
The present invention is described by embodiment, but is not limited the invention, with reference to description of the invention, institute
Other changes of disclosed embodiment, are such as readily apparent that, such change should belong to for the professional person of this area
Within the scope of the claims in the present invention limit.
Claims (7)
1. a kind of Multistage Control formula steel pipe corrosion-proof pickling control system, including descaling bath, absorption tower, suction mist pipe, air-introduced machine, acid mist
Treating column and PLC, absorption tower are arranged at directly over descaling bath, are provided with the top of absorption tower and are inhaled mist pipe, are inhaled mist pipe and are passed through
Air-introduced machine is connected with acid mist treatment tower, and air-introduced machine is connected with power supply, and heater is additionally provided with inside described descaling bath, described
Heater is also connected with power supply；The computer heating control output end of PLC is connected with heater, the blast velocity control of PLC
Output end is connected with air-introduced machine；
It is characterized in that：First switch controlling organization, described air-introduced machine and electricity are provided between described heater and power supply
Second switch controlling organization is provided between source, liquid level sensor and temperature sensor are additionally provided with inside described descaling bath；
The output end of described liquid level sensor and the in-phase input end of first comparator connect, the anti-phase input of first comparator
Terminate and be connected into corresponding reference signal, the output end of first comparator with PLC, the first power supply control of PLC
Output end processed is connected with first switch controlling organization；
The output end of described temperature sensor is connected with the in-phase input end of the second comparator, the anti-phase input of the second comparator
Terminate and be connected into corresponding reference signal, the output end of the second comparator with PLC, the first power supply control of PLC
Output end processed is connected with second switch controlling organization；
The reference signal of the inverting input of the inverting input of first comparator and the second comparator access is carried by PLC
For.
A kind of 2. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 1, it is characterised in that：Described
Switching control mechanism includes triode Q, resistance R1, resistance R2 and relay K, and the power supply output end of PLC passes through
Resistance R1 is connected with triode Q base stage, and triode Q emitter stage is grounded by resistance R2, triode Q colelctor electrode and relay
Device K coil-end connection, relay K tip side are arranged at air-introduced machine/between heater and power supply.
A kind of 3. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 2, it is characterised in that：Described
Relay K is also parallel with sustained diode.
A kind of 4. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 1, it is characterised in that：Described
Switching control mechanism includes PMOS transistor, and the grid of PMOS transistor and the power supply output end of PLC connect,
The source electrode of PMOS transistor is connected with power supply, and the drain of PMOS transistor is connected with air-introduced machine/heater.
A kind of 5. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 1, it is characterised in that：Described
Descaling bath is three and be arranged in parallel.
A kind of 6. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 1, it is characterised in that：Described
Pickling control device also includes two voltage transformation modules, be respectively arranged between air-introduced machine and power supply and heater with electricity
Between source.
A kind of 7. Multistage Control formula steel pipe corrosion-proof pickling control system according to claim 1, it is characterised in that：Described
PLC is also connected with touch display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970698.3A CN107502916A (en) | 2017-10-18 | 2017-10-18 | A kind of Multistage Control formula steel pipe corrosion-proof pickling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970698.3A CN107502916A (en) | 2017-10-18 | 2017-10-18 | A kind of Multistage Control formula steel pipe corrosion-proof pickling control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107502916A true CN107502916A (en) | 2017-12-22 |
Family
ID=60700680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710970698.3A Withdrawn CN107502916A (en) | 2017-10-18 | 2017-10-18 | A kind of Multistage Control formula steel pipe corrosion-proof pickling control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107502916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977819A (en) * | 2018-06-29 | 2018-12-11 | 南京高速齿轮制造有限公司 | The device of pickling before being examined for small lot multi items part etch |
-
2017
- 2017-10-18 CN CN201710970698.3A patent/CN107502916A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977819A (en) * | 2018-06-29 | 2018-12-11 | 南京高速齿轮制造有限公司 | The device of pickling before being examined for small lot multi items part etch |
| CN108977819B (en) * | 2018-06-29 | 2020-07-03 | 南京高速齿轮制造有限公司 | Device for pickling small-batch multi-variety parts before etching inspection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103060884B (en) | A kind of hard chrome plating production line chromic acid circulation and stress treatment system and technique | |
| CN203469768U (en) | Novel high-efficiency and energy-saving air treatment device with two-stage spraying and absorbing system for organic waste gas | |
| CN102995040A (en) | Method for heating acid washing solution | |
| CN203998922U (en) | A kind of negative pressure of vacuum is unloaded sour device | |
| CN107502916A (en) | A kind of Multistage Control formula steel pipe corrosion-proof pickling control system | |
| CN204490966U (en) | The mercury treatment facility of electrodeposition gold mud | |
| CN207331077U (en) | A kind of pickling control system of steel pipe corrosion-proof erosion pre-treatment | |
| CN207153469U (en) | A kind of new electrolysis spray treatment device | |
| CN204978589U (en) | Portable high -pressure steam washing equipment | |
| CN107502917A (en) | A kind of pickling control system of steel pipe corrosion-proof erosion pre-treatment | |
| CN104294241A (en) | Chemical nickel plating device and chemical nickel plating method | |
| CN103657119A (en) | Efficient low temperature concentration device | |
| CN203648552U (en) | SCR (Semiconductor Control Rectifier) catalyst regeneration device | |
| CN216169961U (en) | High-efficient concentrator of high-efficient sterilization | |
| CN104740979A (en) | Tail gas purification cabinet | |
| CN211885430U (en) | Multi-effect evaporation tower | |
| CN206697458U (en) | A kind of polycrystalline cell piece heat exchange descaling bath | |
| CN204529303U (en) | A kind ofly can prevent the acid regeneration device emitting red cigarette | |
| CN203639285U (en) | Negative pressure concentration treatment system for electroplating wastewater | |
| CN202849581U (en) | Galvanized wire bath solution heating device | |
| CN208394818U (en) | Ammonia nitrogen sewage treatment equipment | |
| CN203513799U (en) | Copper foil circulation pickling device capable of automatically adjusting PH values | |
| CN203291547U (en) | Steam stripping system | |
| CN207237309U (en) | Chinese medicinal concentration equipment | |
| CN206104460U (en) | Cross valve SEC takes over environmental protection self - cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171222 |