CN107963616A - A kind of evaporator for sulphuric acid concentration - Google Patents
A kind of evaporator for sulphuric acid concentration Download PDFInfo
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- CN107963616A CN107963616A CN201711498885.2A CN201711498885A CN107963616A CN 107963616 A CN107963616 A CN 107963616A CN 201711498885 A CN201711498885 A CN 201711498885A CN 107963616 A CN107963616 A CN 107963616A
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- corrosion
- evaporator
- sulphuric acid
- acid concentration
- carborundum
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention provides a kind of evaporator for sulphuric acid concentration, belongs to corrosion protection equipment technical field.Evaporator for sulphuric acid concentration includes anti-corrosion evaporator shell, more carborundum heating muffs and anti-corrosion tube sheet, anti-corrosion tube sheet is arranged at anti-corrosion evaporator shell, and every carborundum heating muff is internally provided with electric heating wire component and is installed on anti-corrosion tube sheet and in anti-corrosion evaporator shell body.This evaporator for being used for sulphuric acid concentration uses carborundum heating muff, with very high thermal conductivity, high intensity, high temperature resistant and acid/alkali-corrosion-resistant characteristic, it is adapted to the environment such as high temperature, high pressure, strong acid and highly basic, the evaporator for being used in sulphuric acid concentration has good concentrated effect, also the service life of equipment can be extended, reduce production cost.
Description
Technical field
The present invention relates to corrosion protection equipment technical field, in particular to a kind of evaporator for sulphuric acid concentration.
Background technology
Nowadays in chemical and medicine industry production process, careless environmental protection policy is more and more tighter, and the spent acid of enterprise's production requires voluntarily
Processing or recycling, and sulfuric acid concentrate is then to use more retrieval of sulfuric acid methods.
In sulphuric acid concentration technique, sulfuric acid concentration requirement is reached more than 85% generally two schemes：Scheme one：In vacuum
Under the conditions of force external circulation evaporation concentration；Scheme two：Concentrated under vacuum with horizontal evaporator immersion heating evaporation.
When sulphuric acid concentration technique needs to meet sulfuric acid concentrate to more than 85%, all there is selection for existing concentrate equipment
Difficulty, the high puzzlement of cost；Require sulfuric acid concentration high, material selection leeway is fewer used in manufacturing equipment, or even needs
Heat exchanger materials are done using noble metals such as metal tantalums, forced circulation pump can only also use import high silico cast iron pump；High equipment
Input greatly limit popularization of the sulphuric acid concentration system in chemical industry.
The content of the invention
It is an object of the invention to provide a kind of evaporator for sulphuric acid concentration, using carborundum heating muff, have
Very high thermal conductivity, high intensity, high temperature resistant and acid/alkali-corrosion-resistant characteristic, is adapted to the environment such as high temperature, high pressure, strong acid and highly basic, makes
Evaporator for sulphuric acid concentration has good concentrated effect, can also extend the service life of equipment, reduces production cost.
The present invention is realized using following technical scheme：
A kind of evaporator for sulphuric acid concentration, including anti-corrosion evaporator shell, more carborundum heating muffs and anti-corrosion
Tube sheet, anti-corrosion tube sheet are arranged at anti-corrosion evaporator shell, and every carborundum heating muff is arranged at anti-corrosion tube sheet and is located at anti-corrosion
In evaporator shell body.
Further, in preferred embodiments of the present invention, the above-mentioned evaporator for sulphuric acid concentration further includes multiple sealings
Structure, every carborundum heating muff are arranged at anti-corrosion tube sheet by a sealing structure.
Further, in preferred embodiments of the present invention, above-mentioned each sealing structure include clamp nut, anti-corrosion gasket and
Preserving and sealing circle, is provided with through hole on anti-corrosion tube sheet, clamp nut is arranged in through hole, is set between clamp nut and anti-corrosion tube sheet
Anti-corrosion gasket is put, carborundum heating muff is arranged in clamp nut, is set between carborundum heating muff and clamp nut anti-
Rotten sealing ring.
Further, in preferred embodiments of the present invention, above-mentioned every carborundum heating muff includes carborundum casing, electricity
Heater strip and electric heating wire connect electric device, and carborundum casing is arranged in clamp nut, and electric heating wire is arranged at carborundum casing
Interior, electric heating wire connects electric device and one end of electric heating wire connects.
Further, in preferred embodiments of the present invention, the above-mentioned evaporator for sulphuric acid concentration further includes fixed structure,
Fixed structure includes first flange and second flange, and first flange and second flange may be contained within anti-corrosion evaporator shell and be located at
The both sides of anti-corrosion tube sheet.
Further, in preferred embodiments of the present invention, above-mentioned fixed structure further includes the first packing ring and second packing ring, the
One packing ring is arranged between anti-corrosion tube sheet and first flange, and second packing ring may be contained within anti-corrosion tube sheet between second flange.
Further, in preferred embodiments of the present invention, above-mentioned anti-corrosion evaporator shell and the equal water of carborundum heating muff
Flat to set, anti-corrosion evaporator shell is provided with steam (vapor) outlet, dilute sulfuric acid import and concentrated sulfuric acid outlet, and steam (vapor) outlet is located at anti-corrosion steaming
Send out device housing upper end, the concentrated sulfuric acid outlet positioned at anti-corrosion evaporator shell lower end, dilute sulfuric acid import be located at steam (vapor) outlet with it is dense
Between sulfuric acid outlet.
Further, in preferred embodiments of the present invention, above-mentioned anti-corrosion evaporator shell has along anti-corrosion evaporator shell
The first end and second end of length direction, first end are provided with anti-corrosion tube sheet, and dilute sulfuric acid import is close to first end, concentrated sulfuric acid outlet
Away from first end.
Further, in preferred embodiments of the present invention, the above-mentioned evaporator for sulphuric acid concentration further includes multiple anti-corrosions
Baffle plate, direction of multiple anti-corrosion baffle plates along first end to second end are arranged at intervals under anti-corrosion evaporator shell successively
End.
Further, in preferred embodiments of the present invention, above-mentioned each baffle plate is both provided with for installing every carbonization
The mounting hole of silicon heating muff and the notch for sulphuric acid stream, two neighboring anti-corrosion baffle gap are staggered.
The beneficial effect of the evaporator for sulphuric acid concentration that presently preferred embodiments of the present invention provides is：Anti-corrosion evaporator shell
Body, anti-corrosion tube sheet and carborundum heating muff are made of anticorrosion material, are avoided sour for the evaporator of sulphuric acid concentration
Corrosion, increases the service life of equipment, and the production cost of each component is relatively low, reduces the cost of equipment.Use carborundum
Heating muff, has very high thermal conductivity, high intensity, high temperature resistant and acid/alkali-corrosion-resistant characteristic, be adapted to high temperature, high pressure, strong acid and
The environment such as highly basic, the evaporator for being used in sulphuric acid concentration have good concentrated effect, can also extend the service life of equipment,
Reduce production cost.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings and fall within protection scope of the present invention.
Fig. 1 is the structure diagram of the evaporator provided in an embodiment of the present invention for sulphuric acid concentration；
Fig. 2 is the mounting structure schematic diagram of baffle plate in the evaporator provided in an embodiment of the present invention for sulphuric acid concentration；
Fig. 3 is the structural representation of carborundum heating muff in the evaporator provided in an embodiment of the present invention for sulphuric acid concentration
Figure；
Fig. 4 is the structure diagram of sealing structure in the evaporator provided in an embodiment of the present invention for sulphuric acid concentration.
Icon：100- is used for the evaporator of sulphuric acid concentration；110- anti-corrosion evaporator shells；120- carborundum heating muffs；
130- anti-corrosion tube sheets；140- sealing structures；150- fixed structures；160- anti-corrosion baffle plates；111- steam (vapor) outlets；112- dilute sulfuric acids
Import；The 113- concentrated sulfuric acids export；114- first ends；115- second ends；161- notches；The first spaces of 116-；117- second spaces；
121- carborundum casings；122- electric heating wires；123- electric heating wires connect electric device；141- clamp nuts；142- anti-corrosion gaskets；
143- preserving and sealing circles.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Embodiment
A kind of evaporator 100 for sulphuric acid concentration is present embodiments provided, mainly to needing to heat concentration and not producing
The sulfuric acid of raw crystallization is concentrated.Such as：The solution such as dilute sulfuric acid, dust technology are concentrated.
Fig. 1 is the structure diagram of the evaporator 100 provided in this embodiment for sulphuric acid concentration.Referring to Fig. 1, this reality
Apply in example, the evaporator 100 for sulphuric acid concentration includes anti-corrosion evaporator shell 110, carborundum heating muff 120, anti-corrosion pipe
Plate 130, sealing structure 140, fixed structure 150 and anti-corrosion baffle plate 160.Anti-corrosion evaporator shell 110 is used to put sulfuric acid, prevents
Corrosion baffle plate is arranged in anti-corrosion evaporator shell 110, and carborundum heating muff 120 is installed on anti-through anticorrosion baffle plate
On rotten tube sheet 130, concentrated for being heated to sulfuric acid, anti-corrosion tube sheet 130 is installed on anti-corrosion evaporator shell 110 and uses fixed knot
Structure 150 is fixed.
In the present embodiment, anti-corrosion evaporator shell 110 is the higher anticorrosion housing of intensity, can be corrosion-proof casing.It is excellent
Selection of land, anti-corrosion evaporator shell 110 include internal layer shell and outer casing, and outer casing is steel lining housing, internal layer shell four
Fluorine housing, it is preferable that tetrafluoride material is sprayed at the inner surface of steel lining housing to form tetrafluoro housing；Internal layer shell can also be
Enamel housing.
In the present embodiment, anti-corrosion evaporator shell 110 is horizontally disposed, and anti-corrosion evaporator shell 110 is provided with steam (vapor) outlet
111st, dilute sulfuric acid import 112 and concentrated sulfuric acid outlet 113, steam (vapor) outlet 111 is located at the upper end of anti-corrosion evaporator shell 110, dense sulphur
Acid outlet 113 is located at the lower end of anti-corrosion evaporator shell 110, and dilute sulfuric acid import 112 is located at steam (vapor) outlet 111 and is exported with the concentrated sulfuric acid
Between 113.That is, when heating concentration is carried out to dilute sulfuric acid, the water heating evaporation in dilute sulfuric acid is into steam, from steam (vapor) outlet
Discharge at 111, so as to improve the concentration of the sulfuric acid in anti-corrosion evaporator shell 110, sulfuric acid is concentrated.Dilute sulfuric acid import
112 are arranged on the middle part of anti-corrosion evaporator shell 110, and dilute sulfuric acid enters after anti-corrosion evaporator shell 110, flows down to anti-
In rotten evaporator shell 110 on 120 surface of carborundum heating muff of contact installation, preferably it is concentrated by evaporation, makes sulfuric acid
Concentrated effect it is more preferable, the lower ends that concentrated sulfuric acid outlet 113 is arranged on anti-corrosion evaporator shell 110, dilute sulfuric acid after concentrating,
Its small volume, dilute concentrated sulfuric acid outlet 113 are arranged on lower end, and the sulfuric acid after convenient concentration is flowed out from concentrated sulfuric acid outlet 113, so that
Carry out the collection of sulfuric acid.
In the present embodiment, the cross section of anti-corrosion evaporator shell 110 is annular, i.e., anti-corrosion evaporator shell 110 is level
The cylindrical structural of setting, anti-corrosion evaporator shell 110 have the first end 114 along 110 length direction of anti-corrosion evaporator shell
With second end 115, i.e., for sulphuric acid concentration evaporator 100 it is horizontal positioned when, 110 level of anti-corrosion evaporator shell is put
Put, i.e. the left and right ends of anti-corrosion evaporator shell 110 are respectively first end 114 and second end 115, and dilute sulfuric acid import 112 is close
First end 114, concentrated sulfuric acid outlet 113 is away from first end 114, direction flowing of the sulfuric acid along first end 114 to second end 115, and
Dilute sulfuric acid is heated by the carborundum heating muff 120 of installation in anti-corrosion evaporator shell 110 during flowing
Concentration.
It is mounted with multiple anti-corrosion baffle plates 160 in anti-corrosion evaporator shell 110, multiple anti-corrosion baffle plates 160 are along first end
114 are arranged at intervals at the lower end of anti-corrosion evaporator shell 110 to the direction of second end 115 successively.Pass through anti-corrosion baffle plate 160
Installation, can eliminate the mixing phenomena that backflows of sulfuric acid, the sulfuric acid after concentration be avoided to reflux, so that the sulfuric acid after concentration
Mixed with unconcentrated sulfuric acid, the mean temperature difference of sulfuric acid and steam is maintained maximum, make concentrated effect more preferable, also make concentration
After a period of time, the heating surface (area) (HS of carborundum heating muff 120 is concentrated into minimum.
Fig. 2 is the mounting structure schematic diagram of baffle plate in the evaporator 100 provided in this embodiment for sulphuric acid concentration.Please
Refer to Fig. 1 and Fig. 2 in the lump, in the present embodiment, the shape of anti-corrosion baffle plate 160 is semi-circular platy structure, is conveniently arranged at
The lower end of anti-corrosion evaporator shell 110, carries out stablizing installation with anti-corrosion evaporator shell 110, avoids the phenomenon of backflowing of sulfuric acid
Occur.Each anti-corrosion baffle plate 160 is both provided with mounting hole for installing every carborundum heating muff 120 and for sulfuric acid
The notch 161 of circulation, i.e. carborundum heating muff 120 are horizontally set in anti-corrosion evaporator shell 110, and pass through each anti-corrosion
Baffle plate 160, two neighboring 160 notch 161 of anti-corrosion baffle plate are staggered, and arrow method is the flow direction of sulfuric acid in figure,
The flow direction for making sulfuric acid S-shaped in anti-corrosion evaporator shell 110 is flowed, sulfuric acid and carborundum heating muff 120
Time of contact and contact area increase, its concentrated effect are more preferable.
In the present embodiment, anti-corrosion baffle plate 160 is polytetrafluoroethylene (PTFE) baffle plate, but is not limited only to this material, Neng Goufang
Baffle plate made of rotten material.
In the present embodiment, anti-corrosion tube sheet 130 is arranged at anti-corrosion evaporator shell 110, i.e. first end 114 is provided with anti-corrosion pipe
Plate 130, every equal carborundum heating muff 120 are arranged at anti-corrosion tube sheet 130 and in anti-corrosion evaporator shells 110.Pass through
The setting of anti-corrosion tube sheet 130, can carry out the installation of carborundum heating muff 120, and by fixed structure 150, by anti-corrosion pipe
Plate 130 is installed on anti-corrosion evaporator shell 110.
Anti-corrosion tube sheet 130 is polytetrafluoroethylene (PTFE) tube sheet, or steel lining tetrafluoro tube sheet；But both materials are not limited only to, can
Carry out tube sheet made of corrosion-resistant material.
Fixed structure 150 includes first flange and second flange, and first flange and second flange may be contained within anti-corrosion evaporation
Device housing 110 and the both sides for being located at anti-corrosion tube sheet 130, by the installation bolt in first flange and second flange, and use screw
It is fixed, anti-corrosion tube sheet 130 is fixed on anti-corrosion evaporator shell 110 by fixed structure 150.
Preferably, fixed structure 150 further includes the first packing ring and second packing ring, and the first packing ring is arranged at anti-corrosion tube sheet 130
Between first flange, second packing ring may be contained within anti-corrosion tube sheet 130 between second flange.Make anti-corrosion tube sheet 130 and anti-corrosion
The connection of evaporator shell 110 is more firm, also, has good leakproofness, and sulfuric acid will not be from anti-corrosion tube sheet 130 and anti-corrosion
The gap outflow of evaporator shell 110, increases the safe handling of equipment.
Carborundum heating muff 120 is provided with more, and every carborundum heating muff 120 is horizontally disposed, and more are handed over together
Mistake layering is set, and Fig. 3 is the knot of carborundum heating muff 120 in the evaporator 100 provided in this embodiment for sulphuric acid concentration
Structure schematic diagram.Also referring to Fig. 1 and Fig. 3, in the present embodiment, every carborundum heating muff 120 includes carborundum casing
121st, electric heating wire 122 and electric heating wire connect electric device 123, and carborundum casing 121 is arranged at anti-corrosion tube sheet 130, electric heating wire
122 are arranged in carborundum casing 121, and electric heating wire connects electric device 123 and is connected with one end of electric heating wire 122.Anti-corrosion tube sheet
130 is vertically arranged, and anti-corrosion tube sheet 130 is arranged at first end 114 and anti-corrosion evaporator shell 110 is divided into two parts, a part of
Less first space 116 in space, electric device 123, the larger second space in a part of space are connect for putting electric heating wire
117, for putting sulfuric acid, destroyed in order to avoid electric heating wire connects electric device 123 by sulfuric acid, therefore it is necessary to make anti-corrosion tube sheet 130
There is good leakproofness with every carborundum heating muff 120, avoid sulfuric acid from leaking into second space from the first space 116
117。
Preferably, every carborundum heating muff 120 includes carborundum casing 121 and electric heating wire 122, all sic
The electric heating wire 122 of heating muff 120 connects electric device 123 using an electric heating wire and controls every electric heating wire 122 to be powered also
It is powered off, electric heating wire connects the installation of electric device 123, adjusts temperature control all more convenient, is adapted to automated control.
Heating concentration is carried out to dilute sulfuric acid using carborundum heating muff 120, there is very high thermal conductivity, high intensity, resistance to
High temperature and acid/alkali-corrosion-resistant characteristic, are adapted to the environment such as high temperature, high pressure, strong acid and highly basic, are used in the evaporator 100 of sulphuric acid concentration
With good concentrated effect, it can also extend the service life of equipment, reduce production cost.
In order to realize the leakproofness of carborundum casing 121 and anti-corrosion tube sheet 130, sealing structure 140 be also provided with it is multiple, every
Carborundum heating muff 120 is arranged at anti-corrosion tube sheet 130 by a sealing structure 140, makes carborundum heating muff 120 with preventing
The connection of rotten tube sheet 130 is more firm, i.e. carborundum casing 121 and the connection sealing of anti-corrosion tube sheet 130 is more preferable, avoids sulfuric acid
Leakage, improves the safety in utilization of equipment；Meanwhile also avoid carborundum casing 121 from being produced under the washing away of sulfuric acid and steam and shake
It is dynamic.
Specifically, Fig. 4 is the structure of sealing structure 140 in the evaporator 100 provided in this embodiment for sulphuric acid concentration
Schematic diagram.Also referring to Fig. 1 and Fig. 4, in the present embodiment, each sealing structure 140 includes clamp nut 141, anti-corrosion gasket
142 and preserving and sealing circle 143, through hole is provided with anti-corrosion tube sheet 130, and clamp nut 141 is arranged in through hole, clamp nut
Anti-corrosion gasket 142 is set between 141 and anti-corrosion tube sheet 130, and carborundum heating muff 120 is arranged in clamp nut 141, carbonization
Preserving and sealing circle 143 is set between silicon heating muff 120 and clamp nut 141.The stable chemical performance of carborundum, will not be by sulphur
Acid corrosion；Thermal conductivity factor is high, and the heat of the electric heating wire 122 in carborundum casing 121 can be easy to pass out, to sulfuric acid
Heating concentration is carried out, thickening efficiency is high；Thermal coefficient of expansion is small, under the action of electric heating wire 122, will not deform, and increases
Add service life；Wear-resisting property is good, when sulfuric acid is flowed in etch evaporator housing, it is caused to wash away, also not
It can damage, wear, it is unaffected under harsh operating mode.Thus it is possible to as carborundum casing 121, have good
Advantage.
Since carbofrax material hardness is big, crisp, so, the function of sealing structure 140 is more important, it cannot be to carborundum
Casing 121 forms extruding, ensures good leakproofness again, so, set between clamp nut 141 and anti-corrosion tube sheet 130
Anti-corrosion gasket 142, sets preserving and sealing circle 143, i.e. carborundum casing between carborundum heating muff 120 and clamp nut 141
Preserving and sealing circle 143 is set between 121 and clamp nut 141, can there is good sealing effect, meanwhile, anti-corrosion gasket 142 with
Preserving and sealing circle 143 has certain elasticity, avoids that carborundum casing 121 is caused to extrude, allows it to be destroyed, increase carbonization
The service life of silicon casing 121.
In the present embodiment, one end closing of carborundum casing 121, the other end is unclosed, i.e., carborundum casing 121 is positioned at anti-
One end of rotten tube sheet 130 is unclosed, facilitates electric heating wire 122 to stretch out and carries out the connection installation that electric heating wire connects electric device 123,
One end closing of the carborundum casing 121 away from anti-corrosion tube sheet 130, avoids sulfuric acid from entering in carborundum casing 121, avoids electrical heating
Silk 122 is destroyed.
In the present embodiment, electric heating wire connects the remote carborundum casing 121 that electric device 123 is installed on clamp nut 141
Side, facilitates it to be installed, and controls the energization and power-off of electric heating wire 122, and electric heating wire connects the installation of electric device 123, makes
Temperature control adjusts all more convenient, suitable automated control.Meanwhile avoid electric heating wire from connecing electric device 123 and destroyed.
In the present embodiment, anti-corrosion gasket 142 can be gasket made of various anti-corrosion materials, such as：Teflon gasket,
Modified poly- four polyethylene gasket, reinforced polypropylene gasket, polyvinyl chloride gasket etc..Similarly, preserving and sealing circle 143 can be each
Sealing ring made of kind anti-corrosion material, such as：Viton seal ring, perfluoroether sealing ring, silicone rubber O-ring etc..
This is used for the material cost of the evaporator 100 of sulphuric acid concentration than relatively low, greatly reduces equipment cost, its heat source is
Electric power, is not high temperature and high pressure steam, and device fabrication is simpler.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of evaporator for sulphuric acid concentration, it is characterised in that including anti-corrosion evaporator shell, more carborundum heating mantles
Pipe and anti-corrosion tube sheet, the anti-corrosion tube sheet are arranged at the anti-corrosion evaporator shell, and every described carborundum heating muff is set
It is placed in the anti-corrosion tube sheet and in the anti-corrosion evaporator shell body.
2. the evaporator according to claim 1 for sulphuric acid concentration, it is characterised in that the steaming for sulphuric acid concentration
Hair device further includes multiple sealing structures, and the every carborundum heating muff is fixed on described anti-by a sealing structure
Rotten tube sheet.
3. the evaporator according to claim 2 for sulphuric acid concentration, it is characterised in that each sealing structure includes
Clamp nut, anti-corrosion gasket and preserving and sealing circle, through hole is provided with the anti-corrosion tube sheet, and the clamp nut is arranged at described
In through hole, the anti-corrosion gasket is set, the carborundum heating muff is set between the clamp nut and the anti-corrosion tube sheet
In in the clamp nut, the preserving and sealing circle is set between the carborundum heating muff and the clamp nut.
4. the evaporator according to claim 3 for sulphuric acid concentration, it is characterised in that the every carborundum heating mantle
Pipe includes carborundum casing, electric heating wire and electric heating wire and connects electric device, and the carborundum casing is arranged at the clamp nut
Interior, the electric heating wire is arranged in the carborundum casing, and the electric heating wire meets the one of electric device and the electric heating wire
End connection.
5. the evaporator according to claim 1 for sulphuric acid concentration, it is characterised in that the steaming for sulphuric acid concentration
Hair device further includes fixed structure, and the fixed structure includes first flange and second flange, the first flange and described second
Flange may be contained within the anti-corrosion evaporator shell and positioned at the both sides of the anti-corrosion tube sheet.
6. the evaporator according to claim 5 for sulphuric acid concentration, it is characterised in that the fixed structure further includes
One packing ring and second packing ring, first packing ring are arranged between the anti-corrosion tube sheet and the first flange, second pad
Circle may be contained within the anti-corrosion tube sheet between the second flange.
7. it is used for the evaporator of sulphuric acid concentration according to claim 1-6 any one of them, it is characterised in that the anti-corrosion evaporation
Device housing is horizontally disposed with the carborundum heating muff, and the anti-corrosion evaporator shell is provided with steam (vapor) outlet, dilute sulfuric acid
Import and concentrated sulfuric acid outlet, the steam (vapor) outlet are located at the upper end of the anti-corrosion evaporator shell, and the concentrated sulfuric acid outlet is located at
The lower end of the anti-corrosion evaporator shell, the dilute sulfuric acid import are located between the steam (vapor) outlet and concentrated sulfuric acid outlet.
8. the evaporator according to claim 7 for sulphuric acid concentration, it is characterised in that the evaporator shell has edge
The first end and second end of the evaporator shell length direction, the first end are provided with the anti-corrosion tube sheet, dilute sulphur
Sour import is close to the first end, and the concentrated sulfuric acid outlet is away from the first end.
9. the evaporator according to claim 8 for sulphuric acid concentration, it is characterised in that the steaming for sulphuric acid concentration
Hair device further includes multiple anti-corrosion baffle plates, multiple anti-corrosion baffle plates along the first end to the direction of the second end successively
It is arranged at intervals at the lower end of the anti-corrosion evaporator shell.
10. the evaporator according to claim 9 for sulphuric acid concentration, it is characterised in that each baffle plate is all provided with
It is equipped with the mounting hole for installing every carborundum heating muff and the notch for sulphuric acid stream, two neighboring anti-corrosion folding
Notch is staggered described in flowing plate.
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| CN201711498885.2A CN107963616B (en) | 2017-12-29 | 2017-12-29 | Evaporator for sulfuric acid concentration |
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| CN201711498885.2A CN107963616B (en) | 2017-12-29 | 2017-12-29 | Evaporator for sulfuric acid concentration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692490A (en) * | 2019-01-28 | 2019-04-30 | 何文旭 | Corrosion-resistant falling film evaporator, dilute sulfuric acid concentration systems and its technique and application |
| CN111961883A (en) * | 2020-10-10 | 2020-11-20 | 遵义钛业股份有限公司 | Heating passageway for distillation production of titanium sponge by combined method |
| CN113321191A (en) * | 2020-02-28 | 2021-08-31 | 博特化工装置股份公司 | Sulfuric acid concentration equipment |
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| CN113321191B (en) * | 2020-02-28 | 2024-04-16 | 博特化工装置股份公司 | Sulfuric acid concentration equipment |
| CN111961883A (en) * | 2020-10-10 | 2020-11-20 | 遵义钛业股份有限公司 | Heating passageway for distillation production of titanium sponge by combined method |
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| CN107963616B (en) | 2023-06-27 |
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