CN108543433A - A kind of sulfuric acid dilution device - Google Patents
A kind of sulfuric acid dilution device Download PDFInfo
- Publication number
- CN108543433A CN108543433A CN201810460183.3A CN201810460183A CN108543433A CN 108543433 A CN108543433 A CN 108543433A CN 201810460183 A CN201810460183 A CN 201810460183A CN 108543433 A CN108543433 A CN 108543433A
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- CN
- China
- Prior art keywords
- sulfuric acid
- heat exchanger
- silicon carbide
- preset direction
- cooler
- 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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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 172
- 238000010790 dilution Methods 0.000 title claims abstract description 49
- 239000012895 dilution Substances 0.000 title claims abstract description 49
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 57
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000498 cooling water Substances 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000007865 diluting Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 229910002804 graphite Inorganic materials 0.000 description 13
- 239000010439 graphite Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910003978 SiClx Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/98—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention discloses a kind of sulfuric acid dilution device, is related to sulfuric acid manufacture field.Sulfuric acid dilution device includes mixer, silicon carbide heat exchanger and cooler.The inside of mixer has hybrid channel along preset direction.There are heat exchanger channels, heat exchanger channels along preset direction there is heat exchange import and heat exchange to export successively for the inside of silicon carbide heat exchanger.There is accommodating cavity, silicon carbide heat exchanger to be set in accommodating cavity along preset direction for the inside of cooler.The inner wall of cooler and the outer wall of silicon carbide heat exchanger limit cooling space jointly, and the outer wall of cooler is spaced apart the cooling water inlet and cooling water outlet that are equipped with connection cooling space.The sulfuric acid dilution device can effectively diluting concentrated sulfuric acid and effectively cool down dilute sulfuric acid.
Description
Technical field
The present invention relates to sulfuric acid manufacture fields, in particular to a kind of sulfuric acid dilution device.
Background technology
Since the concentrated sulfuric acid has strong corrosivity, big calorimetric is released when being dissolved in water again, easily makes boiling water and causes the concentrated sulfuric acid
Splashing on skin and clothing leads to serious consequence, so diluting concentrated sulfuric acid is breakneck work in Chemical Manufacture.
Existing dilute sulfuric acid cooling device is complicated, bulky, and entire diluting concentrated sulfuric acid process must accurately control
The concentrated sulfuric acid and dilution water flow, otherwise be easy to cause dilution heat release it is too fast, dilution boiling water splashing cause danger.However, existing
Graphite heat exchanger material defect itself, the vibration that temperature and pressure is too high and equipment generates all can heat exchanging device itself cause
Damage.
Invention content
The purpose of the present invention is to provide a kind of sulfuric acid dilution device, which can effectively diluting concentrated sulfuric acid and has
Effect ground cools down dilute sulfuric acid.
What the embodiment of the present invention was realized in：
A kind of sulfuric acid dilution device, including：
Mixer, mixer have opposite first end and second end along preset direction, and the inside of mixer is along default side
To with hybrid channel, dilution water inlet of the first end with connection hybrid channel, second end, which has, is connected to the mixed of hybrid channel
Liquid outlet is closed, the peripheral wall of mixer has the concentrated sulfuric acid throw-in part of connection hybrid channel；
There are heat exchanger channels, heat exchanger channels to have successively along preset direction for the inside of silicon carbide heat exchanger, silicon carbide heat exchanger
There are heat exchange import and heat exchange to export；
Cooler, cooler have opposite third end and the 4th end along preset direction, and third end is connect with second end, cold
But the inside of device has accommodating cavity, and silicon carbide heat exchanger is set to along preset direction in accommodating cavity, heat exchange import with mix
Liquid outlet, heat exchange outlet run through the 4th end, and the inner wall of cooler and the outer wall of silicon carbide heat exchanger limit cooling sky jointly
Between, the outer wall of cooler is spaced apart the cooling water inlet and cooling water outlet that are equipped with connection cooling space.
Inventor has found：1. traditional bonded graphite sulfuric acid dilution device, due to binder, graphite-pipe and dipping graphite tube
There are notable differences for the coefficient of thermal expansion of three kinds of different materials of plate, and under thermal (temperature difference) stress effect, bond line, which is easily damaged, to be caused to set
Standby leakage.2. traditional cementi formula graphite sulfuric acid dilution device can only use plugging once there is tube brakes or bond line crack
Method processing, thus occur heat exchange area reduction even cause scrapping for equipment.3. graphite is fragile material, in pressure height
In the case of, moment fracture is easy tod produce, equipment scrapping is caused even to cause serious safety accident.However general conventional graphite
The allowable pressure of sulfuric acid dilution device is≤0.3MPa.Since chemical industry is dangerous industry, equipment must have certain safety system
Number also requires that equipment allows for bearing the pressure of 1.0MPa, and often equipment is safe to use for conventional graphite sulfuric acid dilution device
Less than guarantee.
Inventor devises above-mentioned sulfuric acid dilution device, which can effectively diluting concentrated sulfuric acid and effectively to dilute
Sulfuric acid is cooled down.Sulfuric acid dilution device includes mixer, silicon carbide heat exchanger and cooler.Wherein, mixer is for will be dense
Sulfuric acid carries out being mixed to get dilute sulfuric acid with dilution water.Cooler cools down the dilute sulfuric acid of high temperature with silicon carbide heat exchanger.Tool
Body, dilution water enters hybrid channel by diluting water inlet, and the concentrated sulfuric acid enters hybrid channel, dense sulphur by concentrated sulfuric acid throw-in part
Acid is mixed with dilution water in hybrid channel, and mixed dilute sulfuric acid is discharged by mixture export in cooler, has heat
The dilute sulfuric acid of amount enters in the heat exchanger channels in silicon carbide heat exchanger, meanwhile, coolant liquid is entered by the cooling water inlet of cooler
In cooling space, cooling water exchanges heat in cooling space with silicon carbide heat exchanger, to significantly reduce dilute sulfuric acid
Temperature absorbs the cooling water after heat and is discharged by cooling water outlet, discharges the dilute sulfuric acid of heat by heat exchange outlet discharge.Due to carbon
The characteristic of SiClx itself so that in heat exchange, can effectively bear high pressure and silicon carbide has good thermal conductivity.
In an embodiment of the present invention：
Further include：
Liquid pools pipe, liquid pools pipe are set between mixer and cooler；
The inside of liquid pools pipe has convergence pipeline, convergence pipeline connection hybrid channel and heat exchanger channels.
In an embodiment of the present invention：
Further include：
Liquid pools pipe, liquid pools pipe are set between mixer and cooler；
The inside of liquid pools pipe has convergence pipeline, convergence pipeline connection hybrid channel and heat exchanger channels.
In an embodiment of the present invention：
Mixer includes tube body, nozzle, suction chamber and expands Taper Pipe,
Tube body offers the through-hole through first end and second end along preset direction；
Nozzle, suction chamber and expansion Taper Pipe are set in turn in along preset direction in through-hole, end of the nozzle far from second end
Face is concordant with first end, and expansion end face of the Taper Pipe far from first end is concordant with second end, nozzle, suction chamber and expands Taper Pipe
Inner passage perforation limits hybrid channel；
Concentrated sulfuric acid throw-in part is connected to suction chamber.
In an embodiment of the present invention：
The internal diameter of nozzle is gradually reduced along preset direction, and the internal diameter for expanding Taper Pipe gradually increases along preset direction；
Nozzle and expansion Taper Pipe are symmetrical set with suction chamber center line.
In an embodiment of the present invention：
Mixer has the mixing through-hole through first end and second end along preset direction, and it is logical that mixing through-hole limits mixing
Road；
Mix through-hole has interconnected first part, second part and Part III successively along preset direction；
The internal diameter of first part is gradually reduced along preset direction, and the internal diameter of second part is remained unchanged along preset direction, the
The internal diameter of three parts gradually increases along preset direction；
Concentrated sulfuric acid throw-in part is connected to second part.
In an embodiment of the present invention：
Concentrated sulfuric acid throw-in part is through mixer peripheral wall and to be connected to the commissioning pipe of hybrid channel.
In an embodiment of the present invention：
Silicon carbide heat exchanger includes tube sheet and silicon carbide heat exchanger tube；
The peripheral wall of tube sheet and the inner wall of cooler connect, and silicon carbide heat exchanger tube runs through the end face of tube sheet；
The inner passage of silicon carbide heat exchanger tube limits heat exchanger channels.
In an embodiment of the present invention：
Silicon carbide heat exchanger includes two tube sheets and multiple silicon carbide heat exchanger tubes；
The peripheral wall of two tube sheets is connect with the inner wall of cooler respectively, two tube sheets respectively close to third end and the 4th end,
Cooling water inlet and cooling water outlet are located between two tube sheets；
Multiple silicon carbide heat exchanger tubes sequentially pass through two tube sheets, and the inner passage of multiple silicon carbide heat exchanger tubes limits jointly to be changed
The passage of heat.
In an embodiment of the present invention：
Tube sheet is tetrafluoro tube sheet, is tightly connected by tetrafluoro silk plug and sealing ring between tube sheet and silicon carbide heat exchanger tube.
Technical scheme of the present invention at least has the advantages that：
A kind of sulfuric acid dilution device provided by the invention, the sulfuric acid dilution device can effectively diluting concentrated sulfuric acids and effectively to dilute
Sulfuric acid is cooled down.
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 should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range 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.
Fig. 1 is the structural schematic diagram of sulfuric acid dilution device in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of dilute sulfuric acid collection portion in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of mixer in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of tube sheet and silicon carbide heat exchanger tube in the embodiment of the present invention 1.
Icon：10- sulfuric acid dilution devices；11- mixers；12- silicon carbide heat exchangers；13- coolers；14- liquid pools pipes；
15- dilute sulfuric acid collection portions；81- cooling water inlets；82- cooling water outlets；The hybrid channels 90-；91- dilutes water inlet；The dense sulphur of 92-
Sour throw-in part；110- tube bodies；111- nozzles；112- suction chambers；113- expands Taper Pipe；120- tube sheets；121- silicon carbide heat exchanger tubes；
122- tetrafluoro silk plugs；123- sealing rings；150- drains portion.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate 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.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "lower" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Mechanical connection, can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Embodiment 1
The present embodiment provides a kind of sulfuric acid dilution device 10, which can effectively diluting concentrated sulfuric acid and effectively
Dilute sulfuric acid is cooled down.
Referring to FIG. 1, Fig. 1 shows the concrete structure of sulfuric acid dilution device 10 in the present embodiment.
Sulfuric acid dilution device 10 includes mixer 11, silicon carbide heat exchanger 12 and cooler 13.
Mixer 11 along preset direction there is opposite first end and second end, the inside of mixer 11 to have along preset direction
There are hybrid channel 90, first end that there is the dilution water inlet 91 of connection hybrid channel 90, second end to have connection hybrid channel 90
Mixture export, the peripheral wall of mixer 11 has the concentrated sulfuric acid throw-in part 92 of connection hybrid channel 90.In fig. 1 it is shown that
The direction of preset direction.
The inside of silicon carbide heat exchanger 12 have heat exchanger channels, heat exchanger channels along preset direction successively have heat exchange import and
Heat exchange outlet.
Cooler 13 along preset direction there is opposite third end and the 4th end, third end to be connect with second end, cooler
13 inside has accommodating cavity, and silicon carbide heat exchanger 12 is set to along preset direction in accommodating cavity, heat exchange import with mix
Liquid outlet, heat exchange outlet run through the 4th end, and the inner wall of cooler 13 limits cold jointly with the outer wall of silicon carbide heat exchanger 12
But space, the outer wall of cooler 13 are spaced apart the cooling water inlet 81 and cooling water outlet 82 that are equipped with connection cooling space.
In the present embodiment, it is that preferably dilute sulfuric acid is passed through in cooler 13, is additionally provided with liquid pools pipe 14, liquid
Convergence pipe 14 is set between mixer 11 and cooler 13, and the inside of liquid pools pipe 14 has convergence pipeline, converges pipeline
It is connected to hybrid channel 90 and heat exchanger channels.
In the present embodiment, it is that dilute sulfuric acid after cooling is preferably discharged, is additionally provided with dilute sulfuric acid collection portion 15, please refers to
Fig. 2, Fig. 2 shows the concrete structures of dilute sulfuric acid collection portion 15 in the present embodiment.The inside of dilute sulfuric acid collection portion 15, which has, collects
Cavity, peripheral wall of the dilute sulfuric acid collection portion 15 close to ground are provided with the drain portion 150 that cavity is collected in connection, dilute sulfuric acid collection portion 15
It is connect with the 4th end, heat exchange outlet, which is located at, collects in cavity.
Further, referring to FIG. 3, Fig. 3 shows the concrete structure of mixer 11 in the present embodiment.Mixer 11 includes
Tube body 110, nozzle 111, suction chamber 112 and expansion Taper Pipe 113.
Tube body 110 offers the through-hole through first end and second end along preset direction, nozzle 111, suction chamber 112 and
Expansion Taper Pipe 113 is set in turn in along preset direction in through-hole, and end face of the nozzle 111 far from second end is concordant with first end, is expanded
End face of the Taper Pipe 113 far from first end is concordant with second end, nozzle 111, suction chamber 112 and expansion Taper Pipe 113 inside
Channel perforation limits hybrid channel 90.Concentrated sulfuric acid throw-in part 92 is connected to suction chamber 112.
Specifically, the internal diameter of nozzle 111 is gradually reduced along preset direction, expand Taper Pipe 113 internal diameter along preset direction by
Cumulative big, nozzle 111 and expansion Taper Pipe 113 are symmetrical set with 112 center line of suction chamber.In the present embodiment, the concentrated sulfuric acid is put into
Portion 92 is through 11 peripheral wall of mixer and to be connected to the commissioning pipe of hybrid channel 90.
It should be noted that in other specific implementation modes, mixer 11 have through first end along preset direction and
The mixing through-hole of second end, mixing through-hole limit hybrid channel 90, and mixing through-hole has interconnected successively along preset direction
The internal diameter of first part, second part and Part III, first part is gradually reduced along preset direction, the internal diameter of second part
It is remained unchanged along preset direction, the internal diameter of Part III gradually increases along preset direction, and concentrated sulfuric acid throw-in part 92 is connected to second
Point.
It includes tube sheet 120 and silicon carbide heat exchanger tube 121 to please refer to Fig.4 and combine Fig. 1, silicon carbide heat exchanger 12, and Fig. 4 shows
The concrete structure of tube sheet 120 and silicon carbide heat exchanger tube 121 is gone out.The peripheral wall of tube sheet 120 is connect with the inner wall of cooler 13, carbon
SiClx heat exchanger tube 121 runs through the end face of tube sheet 120, and the inner passage of silicon carbide heat exchanger tube 121 limits heat exchanger channels.
Further, silicon carbide heat exchanger 12 includes two tube sheets 120 and multiple silicon carbide heat exchanger tubes 121, two pipes
The peripheral wall of plate 120 is connect with the inner wall of cooler 13 respectively, and two tube sheets 120 are respectively close to third end and the 4th end, cooling water
Import 81 and cooling water outlet 82 are located between two tube sheets 120, and multiple silicon carbide heat exchanger tubes 121 sequentially pass through two tube sheets
120, the inner passage of multiple silicon carbide heat exchanger tubes 121 limits heat exchanger channels jointly.
Tube sheet 120 is tetrafluoro tube sheet, passes through tetrafluoro silk plug 122 and sealing ring between tube sheet 120 and silicon carbide heat exchanger tube 121
123 are tightly connected.
Inventor has found：1. traditional bonded graphite sulfuric acid dilution device, due to binder, graphite-pipe and dipping graphite tube
There are notable differences for the coefficient of thermal expansion of three kinds of different materials of plate, and under thermal (temperature difference) stress effect, bond line, which is easily damaged, to be caused to set
Standby leakage.2. traditional cementi formula graphite sulfuric acid dilution device can only use plugging once there is tube brakes or bond line crack
Method processing, thus occur heat exchange area reduction even cause scrapping for equipment.3. graphite is fragile material, in pressure height
In the case of, moment fracture is easy tod produce, equipment scrapping is caused even to cause serious safety accident.However general conventional graphite
The allowable pressure of sulfuric acid dilution device is≤0.3MPa.Since chemical industry is dangerous industry, equipment must have certain safety system
Number also requires that equipment allows for bearing the pressure of 1.0MPa, and often equipment is safe to use for conventional graphite sulfuric acid dilution device
Less than guarantee.
Inventor devises above-mentioned sulfuric acid dilution device 10, which can effectively diluting concentrated sulfuric acid and effectively
Dilute sulfuric acid is cooled down.Sulfuric acid dilution device 10 includes mixer 11, silicon carbide heat exchanger 12 and cooler 13.Wherein, it mixes
Clutch 11 is used to carry out the concentrated sulfuric acid and dilution water to be mixed to get dilute sulfuric acid.Cooler 13 is with silicon carbide heat exchanger 12 to high temperature
Dilute sulfuric acid is cooled down.Specifically, dilution water enters hybrid channel 90 by diluting water inlet 91, and the concentrated sulfuric acid is thrown by the concentrated sulfuric acid
Enter portion 92 and enter hybrid channel 90, the concentrated sulfuric acid is mixed with dilution water in hybrid channel 90, and mixed dilute sulfuric acid is by mixing
Liquid outlet is closed to be discharged into cooler 13, the dilute sulfuric acid with heat enters in the heat exchanger channels in silicon carbide heat exchanger 12, meanwhile,
Coolant liquid by cooler 13 cooling water inlet 81 enter cooling space in, cooling water in cooling space with silicon carbide heat exchanger
12 exchange heat, and to significantly reduce the temperature of dilute sulfuric acid, absorb the cooling water after heat and are discharged by cooling water outlet 82,
The dilute sulfuric acid of heat is discharged by heat exchange outlet discharge.Due to the characteristic of silicon carbide itself so that in heat exchange, can effectively bear
High pressure and silicon carbide have good thermal conductivity.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of sulfuric acid dilution device, which is characterized in that including：
Mixer, the mixer have opposite first end and second end along preset direction, and the inside of the mixer is along institute
Stating preset direction, there is hybrid channel, the first end to have the dilution water inlet for being connected to the hybrid channel, the second end
With the mixture export for being connected to the hybrid channel, the peripheral wall of the mixer has the concentrated sulfuric acid for being connected to the hybrid channel
Throw-in part；
The inside of silicon carbide heat exchanger, the silicon carbide heat exchanger has heat exchanger channels, and the heat exchanger channels are along the default side
It is exported to having heat exchange import and heat exchange successively；
Cooler, the cooler along the preset direction have opposite third end and the 4th end, the third end with it is described
Second end connects, and there is accommodating cavity, the silicon carbide heat exchanger to be set to along the preset direction for the inside of the cooler
In the accommodating cavity, the heat exchange import is connected to the mixture export, and the heat exchange outlet runs through the 4th end, institute
The outer wall of the inner wall and the silicon carbide heat exchanger of stating cooler limits cooling space jointly, and the outer wall of the cooler is spaced apart
Equipped with the cooling water inlet and cooling water outlet for being connected to the cooling space.
2. sulfuric acid dilution device according to claim 1, which is characterized in that further include：
Liquid pools pipe, the liquid pools pipe are set between the mixer and the cooler；
The inside of the liquid pools pipe has convergence pipeline, and the convergence pipeline is connected to the hybrid channel and the heat exchange is logical
Road.
3. sulfuric acid dilution device according to claim 1, which is characterized in that further include：
Dilute sulfuric acid collection portion, the inside of the dilute sulfuric acid collection portion, which has, collects cavity, and the dilute sulfuric acid collection portion is close to ground
Peripheral wall be provided be connected to it is described collect cavity drain portion；
The dilute sulfuric acid collection portion is connect with the 4th end, and the heat exchange outlet is located in the collection cavity.
4. sulfuric acid dilution device according to claim 1, it is characterised in that：
The mixer includes tube body, nozzle, suction chamber and expansion Taper Pipe；
The tube body offers the through-hole through the first end and second end along the preset direction；
The nozzle, the suction chamber and the expansion Taper Pipe are set in turn in along the preset direction in the through-hole, institute
State that end face of the nozzle far from the second end is concordant with the first end, end face of the expansion Taper Pipe far from the first end with
The second end is concordant, and the inner passage perforation of the nozzle, the suction chamber and the expansion Taper Pipe limits the mixing
Channel；
The concentrated sulfuric acid throw-in part is connected to the suction chamber.
5. sulfuric acid dilution device according to claim 4, it is characterised in that：
The internal diameter of the nozzle is gradually reduced along the preset direction, and the internal diameter of the expansion Taper Pipe is gradual along the preset direction
Increase；
The nozzle and the expansion Taper Pipe are symmetrical set with the suction chamber center line.
6. sulfuric acid dilution device according to claim 1, it is characterised in that：
The mixer has the mixing through-hole through the first end and second end, the mixing through-hole along the preset direction
Limit the hybrid channel；
The mixing through-hole has interconnected first part, second part and third portion successively along the preset direction
Point；
The internal diameter of the first part is gradually reduced along the preset direction, and the internal diameter of the second part is kept along preset direction
Constant, the internal diameter of the Part III gradually increases along the preset direction；
The concentrated sulfuric acid throw-in part is connected to the second part.
7. sulfuric acid dilution device according to claim 1, it is characterised in that：
The concentrated sulfuric acid throw-in part is through the mixer peripheral wall and to be connected to the commissioning pipe of the hybrid channel.
8. sulfuric acid dilution device according to claim 1, it is characterised in that：
The silicon carbide heat exchanger includes tube sheet and silicon carbide heat exchanger tube；
The peripheral wall of the tube sheet is connect with the inner wall of the cooler, and the silicon carbide heat exchanger tube runs through the end face of the tube sheet；
The inner passage of the silicon carbide heat exchanger tube limits the heat exchanger channels.
9. sulfuric acid dilution device according to claim 8, it is characterised in that：
The silicon carbide heat exchanger includes two tube sheets and multiple silicon carbide heat exchanger tubes；
The peripheral wall of two tube sheets is connect with the inner wall of the cooler respectively, and two tube sheets are respectively close to the third
End and the 4th end, the cooling water inlet and the cooling water outlet are located between two tube sheets；
Multiple silicon carbide heat exchanger tubes sequentially pass through two tube sheets, and the inner passage of multiple silicon carbide heat exchanger tubes is total
With the restriction heat exchanger channels.
10. sulfuric acid dilution device according to claim 8, it is characterised in that：
The tube sheet is tetrafluoro tube sheet, is sealed by tetrafluoro silk plug and sealing ring between the tube sheet and the silicon carbide heat exchanger tube
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460183.3A CN108543433A (en) | 2018-05-15 | 2018-05-15 | A kind of sulfuric acid dilution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460183.3A CN108543433A (en) | 2018-05-15 | 2018-05-15 | A kind of sulfuric acid dilution device |
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| Publication Number | Publication Date |
|---|---|
| CN108543433A true CN108543433A (en) | 2018-09-18 |
Family
ID=63494944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810460183.3A Pending CN108543433A (en) | 2018-05-15 | 2018-05-15 | A kind of sulfuric acid dilution device |
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| CN (1) | CN108543433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109988384A (en) * | 2019-04-10 | 2019-07-09 | 南通三责精密陶瓷有限公司 | A kind of high temperature high voltage resistant tetrafluoro tube sheet, method and application |
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