CN207605378U - A kind of potassium hydroxide inspissator that can improve service life - Google Patents
A kind of potassium hydroxide inspissator that can improve service life Download PDFInfo
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- CN207605378U CN207605378U CN201721627076.2U CN201721627076U CN207605378U CN 207605378 U CN207605378 U CN 207605378U CN 201721627076 U CN201721627076 U CN 201721627076U CN 207605378 U CN207605378 U CN 207605378U
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- Prior art keywords
- control slide
- erosion control
- slide plate
- perforated plate
- plate
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Abstract
A kind of potassium hydroxide inspissator that can improve service life, belongs to chemical industry concentrator technical field, for preventing heat exchanger from being corroded.Its technical solution is：Its inspissator increases erosion control slide plate; erosion control slide plate is round plate face; erosion control slide plate is located at the lower section of lower perforated plate; there is endoporus at the center of erosion control slide plate; the inner hole sleeve of erosion control slide plate is on the heat exchanger tube below lower perforated plate; the endoporus of erosion control slide plate is welded to connect with heat exchange pipe outer wall, there is gap, the lower section welding protection sleeve of erosion control slide plate between erosion control slide plate and lower perforated plate.The lye of the utility model is no longer in direct contact with lower perforated plate in heat exchanger tube downstream to when lower perforated plate; but wash away erosion control slide plate; it is protected to be formed to lower perforated plate, while protecting sleeve to collect in the lye of erosion control slide plate side overflow on protection sleeve and then flowing into evaporator.The utility model is simple in structure, design is unique, reduces erosion corrosion of the lye to equipment to the maximum extent, extends the service life of inspissator.
Description
Technical field
The utility model is related to a kind of potassium hydroxide enrichment facilities, belong to chemical industry concentrator technical field.
Background technology
A concentration of 90% potassium hydroxide pellets alkali is the major product of potassium hydroxide, is widely used in potassium permanganate, potassium carbonate etc.
The production of sylvite and medical industry produce the raw material of potassium boron hydrogen, antisterone, batyl alcohol, progesterone, testosterone propionate.
In the production process of potassium hydroxide pellets alkali, the whole concentration of lye is the core link of its production process.Evaporation dense eventually domestic at present
Mainly there are two kinds of equipment of single tube falling film evaporation and shell-and-tube falling film evaporation.The comparison of two kinds of equipment respectively has an advantage and disadvantage, but due to high temperature,
The potassium hydroxide of high concentration has a strong corrosive, and the inspissator of two kinds of equipment all has that service life is short, heat exchanger tube is easy leakage
The problem of, cause to produce unstable, maintenance is frequent.In production process, shell-and-tube inspissator corrosion be mainly lye chemistry
The erosion corrosion of corrosion and lye, when falling liquid film flows down out of inspissator heat exchanger tube for high temperature, high-concentration alkali liquor, closer to down tube
Plate, alkali liquid temperature and concentration are higher, and lye flow velocity is maximum when arrival lower perforated plate.Due to lye itself have viscosity and also
Liquid film has come to life during decline, so when lye reaches lower perforated plate, since steam vapour speed is larger and lye viscosity makes
Lye be not all of directly be detached from heat exchanger tube, have on a big chunk lye side overflow to lower perforated plate plate face, then again according to
It is fallen after gravity formation drop.During side overflow, weldering of the lye between lower perforated plate itself and lower perforated plate and heat exchanger tube
Seam, which generates, to be washed away so that the weld seam position chemistry between lower perforated plate and heat exchanger tube is rotten and evil is most gone through in erosion corrosion.It is used at present
Shell-and-tube inspissator leakage point is all occurring in the weld seam position between lower perforated plate and heat exchanger tube, inspissator average life
It it is 6 months, service life can extend to 12 months after repair, then can not just repair again, need to scrap, to improve
Production cost.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of potassium hydroxide inspissator that can improve service life,
This inspissator can improve resistance to corrosion, extend the service life of inspissator, reduce repair rate, ensure driving rate and life
The even running of production reduces production cost.
Solving the technical solution of above-mentioned technical problem is：
A kind of potassium hydroxide inspissator that can improve service life, it includes upper cover, cylinder, alkaline liquor distributor, upper tube
Plate, lower perforated plate, heat exchanger tube, upper cover are connected to the upper end of cylinder, and alkaline liquor distributor is mounted on the top of inspissator upper perforated plate, with
Heat exchanger tube links together, and upper perforated plate and lower perforated plate are separately mounted to the upper and lower part of cylinder, and heat exchanger tube is vertically mounted on cylinder
The both ends in the center of body, heat exchanger tube are connected with upper perforated plate and lower perforated plate respectively, and improvements are that it increases erosion control cunning
Plate, erosion control slide plate are round plate face, and erosion control slide plate is located at the lower section of lower perforated plate, and there are endoporus, erosion control slide plate in the center of erosion control slide plate
Inner hole sleeve on heat exchanger tube below the lower perforated plate, the endoporus of erosion control slide plate is welded to connect with the pipe outer wall that exchanges heat, erosion control slide plate
There is gap between lower perforated plate.
The above-mentioned potassium hydroxide inspissator that can improve service life, the inner barrel in the lower section of lower perforated plate also have protective case
Cylinder, protection sleeve are upright conical sleeve, and the larger diameter end and the circumferential edges of erosion control slide plate of conical sleeve are welded to connect, and are bored
The smaller diameter end of shape sleeve is located at the lower section of erosion control slide plate.
The utility model has the beneficial effects that：
The utility model is in the bottom of inspissator welding erosion control slide plate and protection sleeve, and lye is in heat exchanger tube under
It is no longer in direct contact with lower perforated plate when tube sheet but washes away erosion control slide plate and protected to be formed to lower perforated plate, while being mounted on erosion control
Protection sleeve below slide plate, which collects in the lye of erosion control slide plate side overflow on protection sleeve, to be then flowed into evaporator, to
Protection is formd to cylinder.The utility model is simple in structure, design is unique, reduces lye to the maximum extent and is washed away to equipment
Corrosion, the service life extended.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
It is marked in figure as follows：Upper cover 1, alkaline liquor distributor 2, upper perforated plate 3, lower perforated plate 4, erosion control slide plate 5, protection sleeve 6,
Heat exchanger tube 7, cylinder 8.
Specific implementation mode
The utility model for inspissator leakage position always occurs in the weld seam between lower perforated plate and heat exchanger tube, and this is special
Point provides a kind of novel inspissator that inspissator lower perforated plate can be protected to extend inspissator service life.
The inspissator of the utility model includes upper cover 1, cylinder 8, alkaline liquor distributor 2, upper perforated plate 3, lower perforated plate 4, erosion control
Slide plate 5, protection sleeve 6, heat exchanger tube 7.
It is shown in figure, upper cover 1 is connected to the upper end of cylinder 8, and alkaline liquor distributor 2 is mounted on heat exchanger tube 7, upper perforated plate 3
It is separately mounted to the upper and lower part of cylinder 8 with lower perforated plate 4, heat exchanger tube 7 is vertically mounted on the center of cylinder 8, and the two of heat exchanger tube 7
End is connected with upper perforated plate 3 and lower perforated plate 4 respectively.Above structure is identical as existing inspissator.
It is shown in figure, erosion control slide plate 5 is round plate face, and erosion control slide plate 5 is located at the lower section of lower perforated plate 4, in erosion control slide plate 5
The heart has endoporus, and the inner hole sleeve of erosion control slide plate 5 is on the heat exchanger tube 7 of 4 lower section of lower perforated plate, endoporus and the heat exchanger tube 7 of erosion control slide plate 5
Outer wall is welded to connect, and has gap to be isolated between erosion control slide plate 5 and lower perforated plate 4.
Erosion control slide plate 5 by specially treated is welded below inspissator lower perforated plate 4, and heat exchanger tube is welded on erosion control cunning
In the trepanning of plate, when this structure design makes the lye falling liquid film of production process high temperature high concentration flow down not with lower perforated plate 4
It is in direct contact, but directly side overflow erosion corrosion erosion control slide plate 5, only erosion control slide plate 5 is corroded bad, can just cause lye
With directly touching for lower perforated plate 4, nor it can be formed and be washed away, can greatly extend weld seam between lower perforated plate 4 and heat exchanger tube 7 in this way
Service life.
It is shown in figure, protection sleeve 6 is conical sleeve, and protection sleeve 6 is located inside the lower section cylinder 8 of lower perforated plate 4, protects
The larger diameter end of the conical sleeve of sleeve 6 and the circumferential edges of erosion control slide plate 5 are welded to connect, and the smaller diameter end of conical sleeve is located at
The lower section of erosion control slide plate 5.
Protection sleeve 6 is the conical sleeve that a material is nickel 201, it is welded on erosion control slide plate 5, it is therefore an objective to will be anti-
The lye for rushing side overflow on slide plate 5 collects in protection sleeve 6 downstream in evaporator, to inspissator cylinder itself
Form protection.
Claims (2)
1. a kind of potassium hydroxide inspissator that can improve service life, it includes upper cover（1）, cylinder（8）, alkaline liquor distributor
（2）, upper perforated plate（3）, lower perforated plate（4）, heat exchanger tube（7）, upper cover（1）It is connected to cylinder（8）Upper end, alkaline liquor distributor（2）
Mounted on cylinder（8）Top, upper perforated plate（3）And lower perforated plate（4）It is separately mounted to cylinder（8）Upper and lower part, heat exchanger tube
（7）It is vertically mounted on cylinder（8）Center, heat exchanger tube（7）Both ends respectively with upper perforated plate（3）And lower perforated plate（4）It is connected,
It is characterized in that：It increases erosion control slide plate（5）, erosion control slide plate（5）For round plate face, erosion control slide plate（5）Positioned at lower perforated plate（4）'s
Lower section, erosion control slide plate（5）Center have endoporus, erosion control slide plate（5）Inner hole sleeve be mounted in lower perforated plate（4）The heat exchanger tube of lower section（7）
On, erosion control slide plate（5）Endoporus and heat exchanger tube（7）Outer wall is welded to connect, erosion control slide plate（5）With lower perforated plate（4）Between have gap.
2. the potassium hydroxide inspissator according to claim 1 that service life can be improved, it is characterised in that：In lower perforated plate
（4）The cylinder of lower section（8）There is protection sleeve inside（6）, protect sleeve（6）For conical sleeve, the larger diameter end of conical sleeve
With erosion control slide plate（5）Circumferential edges be welded to connect, the smaller diameter end of conical sleeve is located at erosion control slide plate（5）Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721627076.2U CN207605378U (en) | 2017-11-29 | 2017-11-29 | A kind of potassium hydroxide inspissator that can improve service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721627076.2U CN207605378U (en) | 2017-11-29 | 2017-11-29 | A kind of potassium hydroxide inspissator that can improve service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207605378U true CN207605378U (en) | 2018-07-13 |
Family
ID=62796747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721627076.2U Active CN207605378U (en) | 2017-11-29 | 2017-11-29 | A kind of potassium hydroxide inspissator that can improve service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207605378U (en) |
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2017
- 2017-11-29 CN CN201721627076.2U patent/CN207605378U/en active Active
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