CN205965775U - Novel mercaptopropionic acid pressurization hydrolysis reaction device - Google Patents
Novel mercaptopropionic acid pressurization hydrolysis reaction device Download PDFInfo
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- CN205965775U CN205965775U CN201620590405.XU CN201620590405U CN205965775U CN 205965775 U CN205965775 U CN 205965775U CN 201620590405 U CN201620590405 U CN 201620590405U CN 205965775 U CN205965775 U CN 205965775U
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Abstract
The utility model relates to a pressurization hydrolysis reaction device of preparation mercaptopropionic acid, the utility model aims to provide a long service life, safer novel mercaptopropionic acid pressurization hydrolysis reaction device. Reation kettle need not add the clamping cover, reation kettle bottom connecting tube, and pipeline one end sets up the tee bend, and other two interfaces of three -way are connected respectively bottom heat recuperator disposed bottom and the cooling and heat exchanging ware, heat recuperator disposed top and reation kettle upper portion intercommunication, reation kettle and heat recuperator disposed form a heating cycle like this, liquid material is by steam perhaps behind hot oil or the hot -water heating in heat recuperator disposed, liquid can be in spontaneous circulation under the effect of the difference in temperature, and need not to introduce external power equipment. The utility model discloses can realize pressurization operation, equipment stability is high, and difficult the emergence is leaked, and whole equipment also need not to add power equipment, and life prolongs greatly.
Description
Technical field
This utility model is related to a kind of pressurized hydrolysis reaction unit and in particular to a kind of pressurized hydrolysis preparing mercaptopropionic acid
Reaction unit.
Background technology
Mercaptopropionic acid (CAS NO.：It is 107-96-0) a kind of poisonous transparency liquid, has strong sulphide smell, it is other
Name have β-mercaptopropionic acid, thio lactic acid, 3- mercaptopropionic acid, Β-thio lactic acid, Β-sulfydryl propanoic acid, 3- mercaptopropionic acid,
BETA- mercaptopropionic acid, 3- 2-mercaptopropionic acid, 3- thiohydracrylic acid etc..Mercaptopropionic acid is a kind of important organic synthesiss raw material, is doctor
The intermediate of medicine chlomezanone, is also the stabilizer of pvc material.
In prior art, in mercaptopropionic acid production process, meeting acid hydrolysis, water after acrylonitrile and NaHS additive reaction
The equipment that solution preocess is used generally adopts jacketed open type enamel reaction still, by being passed through heating steam or heat in chuck
Water heats to material in reactor, and because in chuck, different periods are passed through water and steam easily causes reactor kettle and damages
Bad, additionally, jacketed enamel reaction still bearing capacity is limited, in cylinder, design pressure is only 0.4MPa, is suitable only in normal pressure
Lower operation.Because manufacture requirements and condition limit, easily reveal at end socket gasket seal, it is primarily due in the fabrication process
The enamel flatness of end socket junction it is difficult to ensure that, at end socket, securing member is that A type clamping hoop type bolt fastens, and installation process easily goes out
Situations such as now end socket stress is irregular；Polytetrafluoroethylene membrane is adopted to coat asbestos cord pad, tetrafluoro because material condition limits gasket seal
Thin film has at substantial amounts of out-of-flatness at overlap joint or cladding, is easily revealed using rapid wear for a long time；Agitating device adopts steel body cylinder-packing
Enamel, larger from body weight, material is larger to blade abrasion, and use time is shorter, and enamel shaft manufacturing process circularity ensures
Poor, therefore mechanical seal is also fragile, and stirring is big with end socket interface connecting place thermograde using cantilevered stationary seat, and
It is gas-liquid mixed point, pad and enamel damage amount are very high.In sum, in prior art, the reactor of mercaptopropionic acid uses the longevity
Life is short, generally only there is many potential safety hazards during half a year service life, and its use, pole is unfavorable for keeping the safety in production and becomes
This control.
Utility model content
Main purpose of the present utility model is to provide a kind of long service life, safer novel mercapto propanoic acid pressurized hydrolysis
Reaction unit.
For achieving the above object, the technical solution adopted in the utility model is：Novel mercapto propanoic acid pressurized hydrolysis reaction dress
Put, including reactor, reactor kettle top is provided for adding the dog-house of reaction mass toward in reactor, reactor top is arranged
Stirring motor and the shaft stirring material inside reactor being driven by stirring motor, described pressurized hydrolysis reaction unit
Also include heating heat exchanger and cooling heat exchanger；
Described reactor side wall upper part passes through pipeline communication heating heat exchanger top, and described reactor bottom is by pipeline even
Logical heating heat exchanger bottom；On the pipeline being connected between described reactor bottom and heating heat exchanger bottom, setting threeway connection is cold
But the bottom of heat exchanger, described cooling heat exchanger top arranges discharge nozzle；
The duct height that described reactor side wall upper part connects heating heat exchanger top is less than the liquid level in reactor；
Heat control valve, the pipeline between described threeway and cooling heat exchanger are arranged on the pipeline between described threeway and heating heat exchanger
Upper setting cooling control valve.
That is, reactor does not need to install additional chuck, reactor bottom connecting pipe, pipeline one end arranges threeway, and three
Two interfaces of logical other connect heating heat exchanger bottom and cooling heat exchanger bottom respectively, described heating heat exchanger top with
Reactor top connects, and such reactor forms heat cycles with heating heat exchanger, and liquid material is in heating heat exchanger
After steam or deep fat or hot water heating, liquid can in the presence of the temperature difference automatic circulating, and external power need not be introduced and set
Standby.And can be entered in cooling heat exchanger by reactor pressure conveying before subsequent processing need to be entered and be cooled down.When need to heat
Heat control valve only need to be opened, stop heating and can close heat control valve, after the completion of hydrolysis, only need to close computer heating control
Cooling control valve opened by valve.
Further, described cooling heat exchanger and heating heat exchanger are vertical piece of cellular type heat exchanger, and pipe walked by described material
Journey, heating or cooling medium walks shell side.
Further, described cooling heat exchanger and heating heat exchanger are graphite heat exchanger.I.e. cooling heat exchanger and heating are changed
The heat-transferring assembly of hot device is graphite material.
Further, the internal roller coating anticorrosive high molecular layer of described reactor, each connecting pipe of described reaction unit is steel
Lining tetrafluoro pipeline.I.e. the internal roller coating anticorrosive high molecular layer of reactor, can be that politef can also be Kynoar, change
The anticorrosive high molecular such as property politef；Connecting pipe used in the present invention is steel lining tetrafluoro pipeline, because steel lining tetrafluoro
Tetrafluoroethene layer length within pipeline is longer than outer metal layer, and that is, tetrafluoroethene layer can be emerged external metallization pipeline, so exists
When connecting pipe carries out flange connection, pipeline body sealing can be realized between pipeline, pad need not be additionally used, minimizing is let out
Dew.
Further, described stirring motor axle is connected by pipeline leakage plugging device with shaft.I.e. Hough is put in the end of two axles
In passage in section, then pipeline leakage plugging device two halves are closed tighten fixed screw, so that two axles is connected tightr, separately
On the one hand the concentricity of two axles can also be made to increase, reduce the centrifugal force producing during shaft rotation.
Further, on described shaft, paddle is double-layer cross paddle paddle.That is paddle is divided into
Lower two-layer, every layer of two paddle having point-blank, the paddle of two-layer is mutually perpendicular to be distributed.
Further, mechanical seal is set between reactor and shaft.That is reactor open top is for stirring
Shaft extension enters in reactor, arranges mechanical shaft seal device, at reactor opening and shaft between inside the external world and reactor
Isolation.
It is further preferred that described heat control valve and cooling control valve are steel lining tetrafluoro ball valve.Heat control valve and cold
But control valve can be that butterfly valve, ball valve even check valve etc. has the valve adjusting uninterrupted, but preferably ball herein
Valve, and be the ball valve with tetrafluoroethene coating to increase corrosion resistance.
This utility model novel mercapto propanoic acid pressurized hydrolysis reaction unit has the advantage that：
1. overcome original apparatus integration equipment to lead to the equipment cycle of operation of equipment short, flimsy disadvantage is although one
The investment of secondary property was higher than integration apparatus, but more original device of life of equipment is greatly improved, by existing equipment six months
Change one group, be changed into 3-5 and change one group, checking maintenance number of times is greatly decreased, reduce the plant maintenance time, be greatly reduced and produce into
This, increase profit margin；Steel body roller coating anticorrosive high molecular equipment can reach 5-10 on service life, sets with enamel equipment
Meter service life is compared and is significantly increased.
2. steel body roller coating tetrafluoro equipment is non-standard equipment, can customize volume according to the size of volume of production, and equipment making
During circularity, surface flatness, flatness can be effectively ensured, therefore equipment design pressure can reach the bar of pressurized operation
Part.
3. heat exchanger is graphite material, and pressure and heat resistance is preferable.And can heat, cool down according to inventory, temperature
The hot area of time selected equipment, steam and circulation water consumption are little, environmental protection, No leakage.Temperature control can be according to steam, recirculated water
Valve opening carries out real-time adjustment.
4. heating heat exchanger carries out forced circulation using temperature difference, no external power, can effective resistance to salting-out, ant-scaling.
Reduce rotating machinery, reduce leak point and maintenance capacity；Cooling heat exchanger adopts reactor pressure to convey, no external power, energy-conservation
Environmental protection.
5. all junctions of this covering device all can not use attachment spacers, using the pipeline of steel lining tetrafluoro, apparatus body
Sealing.Reduce leakage factor, reduce and put into；This device enables pressurized operation, compared with original device, is effectively increased anti-
Answer conversion ratio, reduce hydrolysis time, increase production capacity.
Brief description
Fig. 1 is a kind of structural representation of this utility model novel mercapto propanoic acid pressurized hydrolysis reaction unit.
Specific embodiment
It is described as follows with reference to Fig. 1：Novel mercapto propanoic acid pressurized hydrolysis reaction unit, including reactor 6, reactor 6
The bearing 11 that equipment is laid is easy in upper setting, and reactor 6 kettle top is provided for adding the dog-house of reaction mass toward in reactor 6
2, reactor 6 top arranges stirring motor 3 and the shaft stirring material inside reactor 6 being driven by stirring motor 3
12, described pressurized hydrolysis reaction unit also includes heating heat exchanger 7 and cooling heat exchanger 1；Described reactor 6 side wall upper part is passed through
Pipeline communication heating heat exchanger 7 top, pipeline communication heating heat exchanger 7 bottom is passed through in described reactor 6 bottom；Described reactor
On the pipeline being connected between 6 bottoms and heating heat exchanger 7 bottom, setting threeway connects the bottom of cooling heat exchanger 1, described cooling
Heat exchanger 1 top arranges discharge nozzle；The duct height that described reactor 6 side wall upper part connects heating heat exchanger 7 top is less than instead
Answer the liquid level in kettle 6；On pipeline between described threeway and heating heat exchanger 7 arrange heat control valve 8, described threeway with
Setting cooling control valve 9 on pipeline between cooling heat exchanger 1；Described heat control valve 8 and cooling control valve 9 are steel lining tetrafluoro
Ball valve.
Described cooling heat exchanger 1 and heating heat exchanger 7 are vertical piece of cellular type heat exchanger, and tube side walked by described material, heating
Or cooling medium walks shell side；Described cooling heat exchanger 1 and heating heat exchanger 7 are graphite heat exchanger；The inside roller coating of described reactor 6
Anticorrosive high molecular layer, each connecting pipe of described reaction unit is steel lining tetrafluoro pipeline.
Described stirring motor 3 axle is connected by pipeline leakage plugging device 4 with shaft 12；On described shaft 12, paddle 10 is bilayer
Cross paddle paddle；Mechanical seal 5 is set between reactor 6 and shaft 12.
Claims (8)
1. novel mercapto propanoic acid pressurized hydrolysis reaction unit, including reactor (6), reactor (6) kettle top is provided for toward reaction
The dog-house (2) of reaction mass is added, reactor (6) top arranges stirring motor (3) and by stirring motor (3) in kettle (6)
Drive inside the reactor (6) stirring material shaft (12) it is characterised in that：Described pressurized hydrolysis reaction unit also wraps
Include heating heat exchanger (7) and cooling heat exchanger (1)；
Described reactor (6) side wall upper part passes through pipeline communication heating heat exchanger (7) top, and described reactor (6) bottom is passed through
Pipeline communication heating heat exchanger (7) bottom；The pipeline being connected between described reactor (6) bottom and heating heat exchanger (7) bottom
Upper setting threeway connects the bottom of cooling heat exchanger (1), and described cooling heat exchanger (1) top arranges discharge nozzle；
The duct height that described reactor (6) side wall upper part connects heating heat exchanger (7) top is less than the liquid level in reactor (6)
Highly；Setting heat control valve (8), described threeway and cooling heat transferring on pipeline between described threeway and heating heat exchanger (7)
Setting cooling control valve (9) on pipeline between device (1).
2. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：Described cooling heat exchanger (1) and heating
Heat exchanger (7) is vertical piece of cellular type heat exchanger, and tube side walked by described material, and heating or cooling medium walks shell side.
3. pressurized hydrolysis reaction unit according to claim 2 it is characterised in that：Described cooling heat exchanger (1) and heating
Heat exchanger (7) is graphite heat exchanger.
4. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：The internal roller coating of described reactor (6) is resistance to
Erosion macromolecule layer, each connecting pipe of described reaction unit is steel lining tetrafluoro pipeline.
5. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：Described stirring motor (3) axle and stirring
Axle (12) passes through pipeline leakage plugging device (4) and connects.
6. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：The upper paddle of described shaft (12)
(11) it is double-layer cross paddle paddle.
7. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：Described reactor (6) and shaft
(12) setting mechanical seal (5) between.
8. pressurized hydrolysis reaction unit according to claim 1 it is characterised in that：Described heat control valve (8) and cooling
Control valve (9) is steel lining tetrafluoro ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590405.XU CN205965775U (en) | 2016-06-16 | 2016-06-16 | Novel mercaptopropionic acid pressurization hydrolysis reaction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590405.XU CN205965775U (en) | 2016-06-16 | 2016-06-16 | Novel mercaptopropionic acid pressurization hydrolysis reaction device |
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| Publication Number | Publication Date |
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| CN205965775U true CN205965775U (en) | 2017-02-22 |
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| CN201620590405.XU Active CN205965775U (en) | 2016-06-16 | 2016-06-16 | Novel mercaptopropionic acid pressurization hydrolysis reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903409A (en) * | 2016-06-16 | 2016-08-31 | 重庆天原化工有限公司 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
-
2016
- 2016-06-16 CN CN201620590405.XU patent/CN205965775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903409A (en) * | 2016-06-16 | 2016-08-31 | 重庆天原化工有限公司 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
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