CN107201527A - A kind of hydrochloric acid pickler mode of heating - Google Patents
A kind of hydrochloric acid pickler mode of heating Download PDFInfo
- Publication number
- CN107201527A CN107201527A CN201710424636.2A CN201710424636A CN107201527A CN 107201527 A CN107201527 A CN 107201527A CN 201710424636 A CN201710424636 A CN 201710424636A CN 107201527 A CN107201527 A CN 107201527A
- Authority
- CN
- China
- Prior art keywords
- hydrochloric acid
- heat exchanger
- air
- heating
- mode
- 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.)
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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
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/025—Details of the apparatus, e.g. linings or sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/0208—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply
- F24H7/0233—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using electrical energy supply the transfer fluid being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of hydrochloric acid pickler mode of heating of condenser pipe former material hot rolled strip before cold rolling, it is characterized in that carrying out heating to air by electrothermal method obtains hot blast, hot blast is imported again the heat exchanger being immersed in hydrochloric acid pickler, pickle is heated through heat exchanger and pickle heat exchange；Described hot blast is circulation-type hot-air；A circulation hot wind system being made up of air-heater, electric heater unit, heat exchanger and pipeline；Heat exchanger has capillary group.Solve the atmosphere pollution and thermal wastewater discharge produced by traditional steam mode of heating；Devise a kind of indirect Electric heating to heat pickle, it is to avoid potential safety hazard and low heat transfer rate that direct electro heating is brought；Whole system is simple in construction, easy temperature control, and zero-emission is reached using circulating line；The heat utilization rate that electric heater is produced is high, no wasting phenomenon；Full-automatic unmanned control can be achieved, it is safe and reliable.
Description
Technical field
The present invention relates to condenser pipe process technology, hydrochloric acid of especially a kind of condenser pipe former material hot rolled strip before cold rolling
Pickle mode of heating.
Background technology
When condenser pipe is manufactured, hot rolled strip, it is necessary to the oxide on surface produced when removing hot rolling, and is being removed before cold rolling
These oxides use the preferable high temperature chlorohydric acid pickling mode of effect at present, and conventional hydrochloric acid heating is mostly using steam heating
Thus method, these high-pressure and high-temperature steams or with coal-fired or produced with gas fired-boiler can bring substantial amounts of exhaust emission, Er Qiezheng
Vapour is that one-time heating is used, and the discharge of wastewater that band has surplus heat will also result in water pollution.Also have in addition and use following mode, such as
Patent publication No. is CN105188171A, a kind of hydrochloric acid heating unit, mainly by quartz ampoule, heating source, heating fixed seat, safety
Protective cover is constituted；Quartz ampoule openend is provided with heating fixed seat and safty shield, and heating source is arranged in quartz ampoule, quartz
Pipe and heating source are fixed by heating fixed seat, and heating source terminals are provided with safty shield；Its heating means is by quartz ampoule
It is put into hydrochloric acid, the heating source in quartz ampoule prevents dry combustion method, it is anti-that quartz ampoule does not produce chemistry with hydrochloric acid below hydrochloric acid liquid level
Should, do not contacted directly with hydrochloric acid.For another example patent announcement number is CN86204145U internal-heating hydrochloric acid heating unit, is that one kind exists
The energy saver applied in the production of available reagent hydrochloric acid, is heated using one group of spiral shape being made up of protection sleeve pipe and heating element heater
Device, is dipped under liquid level and heats, the oil immersed type resistance heater of outer jointing jacket is made by glass tube.These resistance heaters are placed in
Among hydrochloric acid liquid, then good protective cover also will not absolutely safety, and by its heat transfer effect after protective cover just
It is not good enough.
The content of the invention
The invention aims to solve existing hydrochloric acid vapour mode of heating to produce atmosphere pollution and substantial amounts of
Thermal wastewater, and heat energy is converted into by electric energy there is provided one kind the problem of direct electro heating safety coefficient is low, heat transfer effect is poor turned again
The hot blast for turning to flowing carries out the mode of hydrochloric acid pickler heating.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：A kind of hydrochloric acid pickler adds
Hot mode, it is characterised in that heating is carried out to air by electrothermal method and obtains hot blast, then hot blast importing is immersed in hydrochloric acid acid
Heat exchanger in washing lotion, pickle is heated through heat exchanger and pickle heat exchange；Described hot blast is circulation-type hot-air；
A circulation hot wind system being made up of air-heater, electric heater unit, heat exchanger and pipeline；Described heat exchanger has hair
Tubule group.
The technical program proposes that a kind of indirect Electric heating is heated to hydrochloric acid pickler.First by resistance wire to receiving
Collect the air in heating space to be heated, after required temperature to be achieved, the pressure produced in the duct by the work of air-heater
Power, makes hot blast enter heat exchanger；Heat exchanger is a kind of device with high heat exchange efficiency, passes through filling for capillary and hydrochloric acid solution
Tap touches the purpose for obtaining hydrochloric acid solution heating；The low temperature wind come out from heat exchanger comes back to air-heater and circulated, for
Make through exchanging heat after a while after hydrochloric acid solution reaches design temperature, its return air also has higher temperature, in the present system may be used
Can reuse completely, i.e., the temperature difference of initial period is avoided the need for when being electrically heated device again, so as to greatly save
The energy.
Cooperation heat exchanger, which is provided with to stir, in hydrochloric acid solution pond blocks device, is in the temperature in whole hydrochloric acid solution pond uniform
State.
There is air-heater not produce heat energy in itself in this programme, but the return air with higher temperature can be applicable.
This method can reach samming, constant temperature, low energy consumption, the effect of high heat transfer rate by intelligent control.
Include frame preferably, described, described frame is provided with electric heater, electric heater have air inlet and
The delivery outlet connection of air outlet, wherein air inlet and air-heater, air outlet is connected in hydrochloric acid pickler by pipeline
Heat exchanger, the air inlet of the air outlet tieback of heat exchanger to air-heater.Can except the heat exchanger in hydrochloric acid solution by frame
So that whole heating system is managed concentratedly, instrument needed for being equipped with realizes unmanned management.
Preferably, described electrothermal method is Resistant heating, resistance wire is arranged in electric heater, electrical heating utensil
There is strip calandria, one end of strip calandria is provided with air inlet, and the other end of strip calandria is provided with air outlet；It is long
Insulation shell is provided with bar heat body.Strip calandria makes circulated air have enough heat times, it is to avoid in pipeline
Hot blast is uneven in temperature.
Preferably, described air-heater includes fresh air compensation device.Voluntarily adjusted according to pipeline pressure.
Preferably, being provided with salt acidity test warning device in pipeline between described heat exchanger and air-heater.Ensure system
The safety of business part in system, when finding acid mist occur in pipeline（Such as the capillary season cracking that may be gone on a journey after long-time use
Etc. phenomenon）, automatic alarm waits to be repaired.
Preferably, the pipeline between described heat exchanger and air-heater is provided with safety valve, pressure gauge；Heat exchanger enters
The pipeline of wind end connection is provided with thermometer.
Preferably, being provided with check valve between described safety valve and pressure gauge.
Preferably, described heat exchanger includes being provided with capillary between the fluid confluence for being arranged on two ends, two fluid confluences
Group, fluid confluence is provided with the interface with tube fit.
Preferably, described capillary group is made up of the capillary of some parallel arrangements, every capillary two ends are equal
In the manifold in fluid confluence.Ensure that hot blast temperature is identical inside all capillaries.
Preferably, described capillary group is made up of the capillary of some parallel arrangements, described capillary is in straight
Line or shaped form, the profile of capillary group are adapted with the structure of chlorohydric acid pickling liquid pool.The manner can be by acid solution heating bath
Heat exchanger capillary pipe structure is arranged, makes all hydrochloric acid solution temperature equalizations, so as to ensure pickling quality.
The beneficial effects of the invention are as follows：Solve the atmosphere pollution produced by traditional steam mode of heating and thermal wastewater row
Put；A kind of indirect Electric heating is devised heat pickle, it is to avoid the potential safety hazard that direct electro heating is brought with
And low heat transfer rate；Whole system is simple in construction, easy temperature control, and zero-emission is reached using circulating line；The heat that electric heater is produced
Can utilization rate height, no wasting phenomenon；Full-automatic unmanned control can be achieved, it is safe and reliable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a kind of heat exchanger structure schematic diagram of the present invention.
Fig. 3 is Fig. 2 right view.
In figure：1. frame, 2. air-heaters, 3. electric heaters, 4. pipelines, 5. thermometers, 6. heat exchangers, 61. converge
Fluid, 62. manifolds, 63. capillaries, 7. safety valves, 8. check valves, 9. pressure gauges.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
A kind of hydrochloric acid pickler mode of heating of the present embodiment, referring to Fig. 1, is made up of four parts：One is electric heater unit,
I.e. heat energy is supplied；Two be Circulated power system, i.e., hot blast in pipeline is promoted by air-heater；And salt three be heat exchanger, i.e.,
Acid solution carries out heat exchange；Four be control system, including Automated condtrol and pressure, the measure of security and various aspects.
Its operation principle is：Heating is carried out to air by electrothermal method and obtains hot blast, then hot blast importing is immersed in salt
Heat exchanger 6 in sour pickle, pickle is heated through heat exchanger 6 and pickle heat exchange；And to the hot blast in pipeline
Circulated, a circulation hot wind system being made up of air-heater 2, electric heater unit, heat exchanger and pipeline 4.
Specifically, electric heater unit uses resistance heater 3, and air-heater 2, electric heater 3 are arranged on frame 1
On, electric heater 3 has strip drum type brake calandria, and one end of strip calandria is provided with air inlet, air inlet and hot blast
The delivery outlet connection of machine 2, the other end of strip calandria is provided with air outlet, and air outlet is connected to positioned at hydrochloric acid by pipeline 4
Heat exchanger 6 in pickle.Resistance wire is arranged at strip calandria axis position, and provided with hot-air channel, hot-air channel is by protecting
Warm housing cladding.The air outlet tieback of heat exchanger 6 to air-heater 2 air inlet.
Fresh air compensation device is housed, after normal work, according to the pressure data of same point position in pipeline 4 on air-heater 2
Voluntarily adjustment fresh air compensation.
The structure of heat exchanger 6 as shown in Figure 2 and Figure 3, including is arranged in the fluid confluence 61 at two ends, fluid confluence 61 and has manifold
62, capillary group is provided between two fluid confluences 61, the outer end of fluid confluence 61 is the interface coordinated with pipeline 4.Capillary group is by 108
The capillary 63 that branch is arranged parallel to is constituted, and every capillary two ends are respectively positioned in the manifold 62 in fluid confluence 61.
Further, the structure of heat exchanger 6 can be determined according to the concrete shape of pickling tube, such as the capillary of parallel arrangement
Linear or shaped form, makes the profile of capillary group be adapted with the structure of pickling tube, has whole pickling tube and is heated simultaneously
While samming.
Safety measure in pipeline 4 includes：The salt acidity test warning device being provided between heat exchanger 6 and air-heater 2.Hydrochloric acid
Determining warning device includes liquid mist content detection instrument, provided with electric charge induction and probe protective layer.Electric charge induction probe is located at pipeline 4
On inwall, when the hot blast particulate containing hydrochloric acid flows through probe nearby, faint sense electrical signal should be entered in probe.Then lead to
Cross a DSP and handle this induced signal, as a linear scale in the absolute defeated of particle mass content
Go out value.Illustrate that heat exchanger 6 is likely to occur leakage phenomenon when occurring acid mist in hot blast, remind manager to handle in time.
Other auxiliary members in pipeline 4 are set：Safety valve is sequentially provided with from heat exchanger 6 to the pipeline 4 air-heater 2
7th, check valve 8 and pressure gauge 9, and it is provided with thermometer 5 on the pipeline 4 of the air intake connection of heat exchanger 6.
During work, start electric heater 3, and carry out high-power heating, air-heater 3 is opened, after being heated through electric heater 3
Hot blast enters the capillary 63 of heat exchanger 6 and hydrochloric acid solution carries out heat exchange, is heated hydrochloric acid pickler.When pickling liquid temperature
When degree reaches design temperature, as long as the low-power heating of electric heater 3, heat exchanger 6 and pickle temperature is set to be in balance, i.e.,
Keep the energy consumption very little required for pickle temperature.Whole system passes through automaton, salt acidity test warning device, safety
Valve 7, check valve 8, pressure gauge 9, fresh air compensation device etc. ensure safety and automatic running.
Above-described embodiment is the description of the invention, is not limitation of the invention, any simple transformation to the present invention
Structure, method afterwards belongs to protection scope of the present invention.
Claims (10)
1. a kind of hydrochloric acid pickler mode of heating, it is characterised in that heating is carried out to air by electrothermal method and obtains hot blast, then
Hot blast is imported the heat exchanger being immersed in hydrochloric acid pickler（6）, added pickle through heat exchanger and pickle heat exchange
Heat；Described hot blast is circulation-type hot-air；By air-heater（2）, electric heater unit, heat exchanger and pipeline（4）One of composition
Circulation hot wind system；Described heat exchanger has capillary group.
2. a kind of hydrochloric acid pickler mode of heating according to claim 1, it is characterized in that including frame（1）, described machine
Frame is provided with electric heater（3）, electric heater has air inlet and air outlet, wherein air inlet and air-heater（2）Delivery outlet
Connection, air outlet passes through pipeline（4）It is connected to the heat exchanger in hydrochloric acid pickler（6）, the air outlet tieback of heat exchanger is extremely
The air inlet of air-heater.
3. a kind of hydrochloric acid pickler mode of heating according to claim 1 or 2, it is characterized in that described electrothermal method is electricity
Silk heating is hindered, resistance wire is arranged on electric heater（3）In, electric heater has strip calandria, the one of strip calandria
End is provided with air inlet, and the other end of strip calandria is provided with air outlet；Insulation shell is provided with strip calandria.
4. a kind of hydrochloric acid pickler mode of heating according to claim 3, it is characterized in that described air-heater（2）Including new
Wind compensation device.
5. a kind of hydrochloric acid pickler mode of heating according to claim 1, it is characterized in that described heat exchanger（6）And hot blast
Machine（2）Between pipeline（4）In be provided with salt acidity test warning device.
6. a kind of hydrochloric acid pickler mode of heating according to claim 1 or 2 or 5, it is characterized in that described heat exchanger（6）
And air-heater（2）Between pipeline（4）It is provided with safety valve（7）, pressure gauge（9）；Heat exchanger（6）Air intake connection pipeline
It is provided with thermometer（5）.
7. a kind of hydrochloric acid pickler mode of heating according to claim 6, it is characterized in that described safety valve（7）And pressure
Table（9）Between be provided with check valve（8）.
8. a kind of hydrochloric acid pickler mode of heating according to claim 1 or 2 or 5, it is characterized in that described heat exchanger（6）
Fluid confluence including being arranged on two ends（61）, capillary group is provided between two fluid confluences, fluid confluence is provided with and pipeline（4）Match somebody with somebody
The interface of conjunction.
9. a kind of hydrochloric acid pickler mode of heating according to claim 8, it is characterized in that described capillary group is by some
The capillary of branch parallel arrangement（63）Composition, every capillary two ends are respectively positioned on fluid confluence（61）In manifold（62）In.
10. a kind of hydrochloric acid pickler mode of heating according to claim 8, it is characterized in that described capillary group is by some
The capillary composition of branch parallel arrangement, described capillary linearly or shaped form, profile and the chlorohydric acid pickling pond of capillary group
Structure be adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424636.2A CN107201527A (en) | 2017-06-07 | 2017-06-07 | A kind of hydrochloric acid pickler mode of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424636.2A CN107201527A (en) | 2017-06-07 | 2017-06-07 | A kind of hydrochloric acid pickler mode of heating |
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| Publication Number | Publication Date |
|---|---|
| CN107201527A true CN107201527A (en) | 2017-09-26 |
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ID=59906903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710424636.2A Pending CN107201527A (en) | 2017-06-07 | 2017-06-07 | A kind of hydrochloric acid pickler mode of heating |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204145U (en) * | 1986-06-12 | 1988-02-10 | 岐明 | Internal-heating hydrochloric acid heating unit |
| CN2534541Y (en) * | 2002-04-30 | 2003-02-05 | 孙诗杰 | Circulating cooling water supply heat-exchanger for hydroelectric station |
| CN2641060Y (en) * | 2003-08-15 | 2004-09-15 | 东南大学 | Stainless pickling tank |
| CN101519784A (en) * | 2008-02-26 | 2009-09-02 | 宝山钢铁股份有限公司 | Heating method of silicon-steel pickling line and device thereof |
| CN101793432A (en) * | 2010-03-10 | 2010-08-04 | 天津工业大学 | Heating slot with embedded electric heating pipe |
| CN102951617A (en) * | 2012-10-18 | 2013-03-06 | 陕西比迪欧化工有限公司 | Purifying treatment system and method of waste sulfuric acid |
| CN103626136A (en) * | 2012-08-23 | 2014-03-12 | 中国石油化工股份有限公司 | Wet method used for preparing sulfuric acid from exhaust gas containing hydrogen sulfide |
| CN103896221A (en) * | 2012-12-31 | 2014-07-02 | 天津中科化工工程设计有限公司 | Safe and energy-saving high-purity sulfuric acid production device and operation method |
| CN203886772U (en) * | 2014-05-12 | 2014-10-22 | 珠海全宝电子科技有限公司 | Explosion-proof heating device |
| CN104937141A (en) * | 2012-12-14 | 2015-09-23 | 泰坦金属加工厂 | A system and method for pickling, and a method of manufacturing steel products |
| CN105439361A (en) * | 2016-01-06 | 2016-03-30 | 南宁汇安电工设备有限公司 | Method and device for waste hydrochloric acid evaporating separation and heat energy multi-time utilization |
| CN205783468U (en) * | 2016-05-25 | 2016-12-07 | 上海先路暖通设备有限公司 | Family formula capillary tube heat-exchanger rig |
-
2017
- 2017-06-07 CN CN201710424636.2A patent/CN107201527A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204145U (en) * | 1986-06-12 | 1988-02-10 | 岐明 | Internal-heating hydrochloric acid heating unit |
| CN2534541Y (en) * | 2002-04-30 | 2003-02-05 | 孙诗杰 | Circulating cooling water supply heat-exchanger for hydroelectric station |
| CN2641060Y (en) * | 2003-08-15 | 2004-09-15 | 东南大学 | Stainless pickling tank |
| CN101519784A (en) * | 2008-02-26 | 2009-09-02 | 宝山钢铁股份有限公司 | Heating method of silicon-steel pickling line and device thereof |
| CN101793432A (en) * | 2010-03-10 | 2010-08-04 | 天津工业大学 | Heating slot with embedded electric heating pipe |
| CN103626136A (en) * | 2012-08-23 | 2014-03-12 | 中国石油化工股份有限公司 | Wet method used for preparing sulfuric acid from exhaust gas containing hydrogen sulfide |
| CN102951617A (en) * | 2012-10-18 | 2013-03-06 | 陕西比迪欧化工有限公司 | Purifying treatment system and method of waste sulfuric acid |
| CN104937141A (en) * | 2012-12-14 | 2015-09-23 | 泰坦金属加工厂 | A system and method for pickling, and a method of manufacturing steel products |
| CN103896221A (en) * | 2012-12-31 | 2014-07-02 | 天津中科化工工程设计有限公司 | Safe and energy-saving high-purity sulfuric acid production device and operation method |
| CN203886772U (en) * | 2014-05-12 | 2014-10-22 | 珠海全宝电子科技有限公司 | Explosion-proof heating device |
| CN105439361A (en) * | 2016-01-06 | 2016-03-30 | 南宁汇安电工设备有限公司 | Method and device for waste hydrochloric acid evaporating separation and heat energy multi-time utilization |
| CN205783468U (en) * | 2016-05-25 | 2016-12-07 | 上海先路暖通设备有限公司 | Family formula capillary tube heat-exchanger rig |
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Application publication date: 20170926 |
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| RJ01 | Rejection of invention patent application after publication |