CN202289514U - Dicumyl peroxide falling-film flash evaporation device - Google Patents
Dicumyl peroxide falling-film flash evaporation device Download PDFInfo
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- CN202289514U CN202289514U CN2011204378887U CN201120437888U CN202289514U CN 202289514 U CN202289514 U CN 202289514U CN 2011204378887 U CN2011204378887 U CN 2011204378887U CN 201120437888 U CN201120437888 U CN 201120437888U CN 202289514 U CN202289514 U CN 202289514U
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Abstract
The utility model discloses a dicumyl peroxide falling-film flash evaporation device which mainly comprises a low-pressure steam drum, wherein a preheater and a falling-film evaporator are respectively connected with the low-pressure steam drum and are connected with each other, a middle storage tank is also connected with the preheater, a flash drum is connected with the falling-film evaporator, a bottom liquid tank and a cooler are respectively connected with the flash drum, a condenser and a top liquid tank are respectively connected with the cooler and the cooler and the top liquid tank are connected with each other. The dicumyl peroxide falling-film flash evaporation device has the following beneficial effects: 1, low-temperature and low-pressure steam is used as a medium, and therefore the low heating temperature of dicumyl peroxide is ensured, the possibility of decomposition of heated material is reduced and the safety is improved; 2, through adoption of the falling-film evaporator, when the dicumyl peroxide is heated, liquid droplets are distributed on pipe walls evenly and heated uniformly and the effect of film evaporation is achieved; through adoption of a continuous production process, the material is heated for a short time in the device and the efficiency is improved greatly.
Description
Technical field
The utility model relates to a kind of flash distillation plant, specifically cumyl peroxide falling liquid film flash distillation plant.
Background technology
The distillation of existing cumyl peroxide generally adopts the batch still formula to put forward dense technology; Be in the cumyl peroxide mixed liquor still formula concentration tower of low concentration; Vacuumizing negative pressure reaches-0.098Mpa; Re-use coil pipe and be steam heated to 98 ℃, light component such as isopropylbenzene is separated, reach refining effect.
Weak point has: 1. the decomposition temperature of cumyl peroxide is 120 ℃, and the still formula is carried when dense, and material is under the condition of high temperature for a long time, causes the decomposition explosion accident easily; 2. it is darker that the still formula is put forward the dense material color that obtains, and decomposes mainly due to the fraction material and cause.
The utility model content
The purpose of the utility model is the deficiency that exists to prior art, and a kind of safe, homogeneous heating, heats is good and the efficiency of heating surface is high cumyl peroxide falling liquid film flash distillation plant are provided.
For realizing above-mentioned utility model purpose; The technical scheme that the utility model adopts is a kind of cumyl peroxide falling liquid film flash distillation plant, mainly comprises the low-pressure steam bag, wraps at low-pressure steam and is connected to preheater and falling film evaporator respectively; Preheater and falling film evaporator also join; On preheater, also be connected to intermediate storage tank, on falling film evaporator, be connected to flash tank, on flash tank, be connected to still liquid bath and cooler respectively; On cooler, be connected to condenser and top liquid bath respectively, condenser and top liquid bath also join.
Said cooler is provided with the cooler refrigerant, and the medium of said cooler refrigerant is a water.
Said condenser is provided with the condenser refrigerant, and the medium of said condenser refrigerant is an ethylene glycol solution.
The present invention adopts decompression falling liquid film flash evaporation technology, and making needs the mixed liquor continuous feed of purifying, under the heating of temperature steam at the bottom of the low pressure, through falling film evaporator all with distribution, reach the purpose of purification cumyl peroxide.What the present invention adopted is to put forward dense mode continuously, has reduced the time of staying of material in putting forward dense process, has reduced the time of contact of material and steam, puies forward the possibility that material decomposes in the dense process thereby reduced, and has reached the raising of security.
Beneficial effect: 1. adopting low temperature and low pressure steam is heat medium, guarantees that the heating-up temperature of cumyl peroxide is lower, reduces the possibility of material decomposes, and security is improved; 2. use falling film evaporator, cumyl peroxide receives in the thermal process, and drop is uniformly distributed in the tubulation wall, makes homogeneous heating, reaches the effect of thin film evaporation; 3. the production technology of serialization, the time that material is heated in device shortens, and efficient increases substantially.
Description of drawings
Fig. 1 is the utility model structural representation.1. low-pressure steam bags among the figure, 2. preheater, 3. falling film evaporator, 4. intermediate storage tank, 5. flash tank; 6. still liquid bath, 7. cooler, 8. condenser, 9. top liquid bath, 10. vavuum pump; 11. feed pipe, 12. preheating pipes, 13. evaporation tubes, 14. still liquid pipelines, 15. equalizing mains; 16. the gas phase pipeline, 17. top liquid pipelines, 18. pipelines, 19. vacuum pipes, 20. feed pumps.TI-teletransmission thermometer, TG-scene temperature meter, PI-teletransmission Pressure gauge, LI-teletransmission liquid level gauge, FI-remote control liquid flowmeter, HV-control valve.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the utility model, present embodiment is being to implement under the prerequisite with the utility model technical scheme, should understand these embodiment only be used to the utility model is described and be not used in the restriction the utility model scope.
As shown in Figure 1, a kind of cumyl peroxide falling liquid film flash distillation plant mainly comprises low-pressure steam bag 1, and inside is provided with spray equipment, thermometer, Pressure gauge and safety valve.Superheated steam is connected with the import of low-pressure steam bag, and running water is connected with spray equipment, and safety valve is installed at low-pressure steam bag top, outlet connects preheater 2 and falling film evaporator 3.
Intermediate storage tank 4 is connected with feed pump 20, and feed pump 20 is connected with preheater 2 charging apertures.On intermediate storage tank 4, be provided with exhausting pipeline, liquid level gauge, inside is provided with heat(ing) coil, and is furnished with independent heating agent, and this thermal medium is 40～50 ℃ of hot water.
Preheater 2 shells connect jet chimney and condensing water conduit, are connected with low-pressure steam bag 1; Feed pipe 11 is connected with preheater 2 charging apertures, and preheating pipe 12 is connected with preheater 2 outlets.On preheating pipe, be provided with thermometer.Preheating pipe 12 is connected with falling film evaporator 3 charging apertures; Falling film evaporator 3 outlets are connected with evaporation tubes 13; Falling film evaporator 3 shells connect jet chimney and condensing water conduit, are connected with low-pressure steam bag 1.On evaporation tubes 13, be provided with thermometer.
Evaporation tubes 13 is connected with flash tank 5 charging apertures; Flash tank 5 outlet at bottoms are connected with still liquid pipeline 14; Flash tank 5 top exits are connected with gas phase pipeline 16; Flash tank 5 side inlet are connected with equalizing main 15.On flash tank 5, be provided with thermometer, Pressure gauge, safety valve.On still liquid pipeline 14, be provided with chuck and dispose independent refrigerant, said refrigerant medium is 40～50 ℃ of hot water.Still liquid pipeline 14 is connected with still liquid bath 6 charging apertures; Equalizing main 15 is connected with the still liquid bath 6 balance mouths of pipe; The still liquid bath 6 vacuum mouths of pipe are connected with vacuum pipe 19, connect vavuum pump 10 again.On still liquid bath 6, be provided with exhausting pipeline, liquid level gauge, Pressure gauge, safety valve, and be furnished with multipoint temperature monitor and carry out temperature monitoring, groove inside is provided with heat(ing) coil, and is furnished with independent heating agent, and thermal medium is 40～50 ℃ of hot water.
Operation principle: the low concentration cumyl peroxide evaporates in falling film evaporator through the low temperature and low pressure steam preheating then, in the vacuum flash jar, carries out vapor-liquid separation at last, and liquid phase is the cumyl peroxide of high concentration, and gas phase is an isopropylbenzene.Liquid phase gets into heat preservation for standby use in the still liquid bath; Gas phase gets in the liquid bath of top and recycles after subcooler and condenser cooling liquefaction.
The course of work: it is that 0.095～0.105Mpa, temperature are 118～125 ℃ low temperature and low pressure steam that low-pressure steam bag 1 produces pressure, supplies preheater 3 and falling film evaporator 4 to use.The cumyl peroxide of low concentration uses feed pump 22 to carry, and through preheater 3 heating, is warming up to 75 ± 2 ℃; Get into then in the falling film evaporator 4, carry out thin film evaporation, outlet temperature is at 90～98 ℃; Getting at last and carry out the negative pressure vapor-liquid separation in the flash tank 5, pressure is≤-0.098Mpa.Liquid phase is the cumyl peroxide of high concentration, gets into still liquid bath 6 heat preservation for standby use; Gas phase is an isopropylbenzene, behind subcooler 7 and condenser 8 condensation liquefactions, gets in the top liquid bath 9 and recycles.
Claims (3)
1. cumyl peroxide falling liquid film flash distillation plant; It is characterized in that: mainly comprise low-pressure steam bag (1); On low-pressure steam bag (1), be connected to preheater (2) and falling film evaporator (3) respectively, preheater (2) and falling film evaporator (3) also join, and on preheater (2), also are connected to intermediate storage tank (4); On falling film evaporator (3), be connected to flash tank (5); On flash tank (5), be connected to still liquid bath (6) and cooler (7) respectively, on cooler (7), be connected to condenser (8) and top liquid bath (9) respectively, condenser (8) and top liquid bath (9) also join.
2. according to the said a kind of cumyl peroxide falling liquid film flash distillation plant of claim 1, it is characterized in that: said cooler (7) is provided with the cooler refrigerant, and the medium of said cooler refrigerant is a water.
3. according to the said a kind of cumyl peroxide falling liquid film flash distillation plant of claim 1, it is characterized in that: said condenser (8) is provided with the condenser refrigerant, and the medium of said condenser refrigerant is an ethylene glycol solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378887U CN202289514U (en) | 2011-11-08 | 2011-11-08 | Dicumyl peroxide falling-film flash evaporation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378887U CN202289514U (en) | 2011-11-08 | 2011-11-08 | Dicumyl peroxide falling-film flash evaporation device |
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| Publication Number | Publication Date |
|---|---|
| CN202289514U true CN202289514U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204378887U Expired - Fee Related CN202289514U (en) | 2011-11-08 | 2011-11-08 | Dicumyl peroxide falling-film flash evaporation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933922A (en) * | 2014-04-21 | 2014-07-23 | 太仓塑料助剂厂有限公司 | Reduction and condensation combined reaction device |
| CN109529389A (en) * | 2018-11-06 | 2019-03-29 | 兖矿鲁南化工有限公司 | A kind of device, system and the technique of formaldehyde concentration |
-
2011
- 2011-11-08 CN CN2011204378887U patent/CN202289514U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933922A (en) * | 2014-04-21 | 2014-07-23 | 太仓塑料助剂厂有限公司 | Reduction and condensation combined reaction device |
| CN103933922B (en) * | 2014-04-21 | 2016-02-24 | 太仓塑料助剂厂有限公司 | A kind of reduction condensation association response device |
| CN109529389A (en) * | 2018-11-06 | 2019-03-29 | 兖矿鲁南化工有限公司 | A kind of device, system and the technique of formaldehyde concentration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20201108 |