CN205570321U - Dropwise add reation kettle and system thereof - Google Patents
Dropwise add reation kettle and system thereof Download PDFInfo
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- CN205570321U CN205570321U CN201620252710.8U CN201620252710U CN205570321U CN 205570321 U CN205570321 U CN 205570321U CN 201620252710 U CN201620252710 U CN 201620252710U CN 205570321 U CN205570321 U CN 205570321U
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Abstract
The utility model discloses a dropwise add reation kettle and system thereof belongs to dropwise add response device field. This dropwise add reation kettle, including the cauldron body, drop tube and dropwise add input tube, drop tube for circle annular tubular structure, it has liquid dropwise add hole to distribute along its four weeks, it sets up on the internal upper portion of cauldron, the lower extreme of dropwise add input tube be connected with drop tube, it is external that the cauldron is stretched out to its upper end, the internal heating device that is equipped with of cauldron, it is the steam conduit of heliciform setting in the internal side of cauldron, the external cooling device that is equipped with of cauldron, it is the heliciform to coil the companion's pipe on the external wall of cauldron. The utility model discloses reaction solution can evenly, at the uniform velocity disperse the dropwise add, and dropwise add speed is controllable, and reaction area of contact is big, the misce bene is abundant, and reaction effect is good, efficient, the productivity is high, has reduced the waste of raw materials and the production of impurity, the reaction starting velocity is fast, the shortening reaction time, the reaction back, reation kettle can cool off fast, does not have between adjacent process and waits for.
Description
Technical field
This utility model belongs to dropwise reaction apparatus field, more particularly, it relates to a kind of dropwise reaction still and system thereof.
Background technology
Condensation reaction is to synthesize a macromole with covalently bonded after two or more organic molecule interacts, and loses water or the reaction of other fairly simple inorganic or organic molecules simultaneously.Small-molecule substance therein is typically water, hydrogen chloride, methanol or acetic acid etc..Condensation reaction can be intermolecular, it is also possible to is intramolecular.In condensation reaction, dripping liquid material in reactor is relatively common a kind of unit mode of operation, the particularly liquid material of some high reaction activities, while being added dropwise to liquid material, violent chemical reaction can occur in reactor, and be frequently accompanied by releasing substantial amounts of heat of reaction.It is thus desirable to strictly control the dropping of liquid well, it is ensured that dropping material is mixed homogeneously and stationarity with reactant liquor, with stability and the mildness of course of reaction whole in keeping reactor.Further, in order to improve the speed of reaction, often need kettle is heated during reaction, shorten the response time；After reaction terminates, need again to lower kettle temperature, in order to carry out subsequent processing operation.
In commercial production, reactor is general all at 3000L～10000L, dropwise reaction process, traditional mode is all that single-point drips (i.e. in the perforate of reactor top, and implement dropping operation by single dropping pipe), the liquid being added dropwise to can flow down in strand, therefore bad dispersibility, mix uneven with the reactant liquor in reactor, it is easy to cause local concentration too high, and cause local temperature superelevation, side reaction is caused to increase, reaction is not thoroughly, productivity is low, waste raw material, and produces impurity, has a strong impact on product quality.
People make every effort to find a kind of mode to solve the problems referred to above, as China Patent Publication No. is: CN 202638388 U, publication date is: the patent documentation on January 2nd, 2013, disclose a kind of reactor gentleness reaction liquid Dropping feeder, it is arranged on reactor, including being fixedly mounted on the top of described reactor and stretching to the liquid-feeding tube in described reactor, described liquid-feeding tube being provided with liquid dropping control valve, the inner end of described liquid-feeding tube is provided with liquid dispersion Dropping feeder.This utility model adds a liquid dispersion Dropping feeder in the end of liquid-feeding tube, the liquid dispersion making addition is homogeneously added in reactor, thus avoid the liquid local concentration in reactor added too high, make the reaction uniform and complete of liquid in reactor, and side reaction is few, it is favorably improved the quality of product.
And for example, China Patent Publication No. is: CN 204074034 U, publication date is: the patent documentation on January 7th, 2015, disclose a kind of reactor dropping system, including nitrogen compression system, storage tank, pipeline flowmeter and reactor, described nitrogen compression system connects storage tank, and storage tank coupled reaction still, the pipeline between storage tank and reactor is provided with pipeline flowmeter；It is provided with valve one between nitrogen compression system and storage tank, between storage tank and pipeline flowmeter, is provided with valve two, between pipeline flowmeter and reactor, be provided with valve three.This utility model advantage compared with prior art is: dropping its feed rate of system is constant, low to requirement on height of workshop, and charge pipe can be installed below at operating platform, does not affect operation.
Above two scheme adds dropping endless tube the most in a kettle., make liquid and dropping liquid body in kettle can mix the most uniform, reacting balance, but they dropwise reactions start the slowest, subsequent reactions heating makes kettle temperature raise, reaction terminates kettle temperature needs the long period to cool down, and impact proceeds next step production process time；Additionally, how they collect without reference to product.
Summary of the invention
1, problem to be solved
For existing dropwise reaction exist dropping uneven cause reaction not thoroughly, productivity is low, waste raw material, impurity is many, and reaction starts the problem that speed is slow, this utility model provides a kind of dropwise reaction still and system thereof, it is ensured that dropwise reaction is the most sufficiently carried out, and reaction effect is good, improve reaction efficiency, and reaction yield is high, reduce the waste of raw material, reduce the generation of impurity.This dropwise reaction still system response starting velocity is fast, after reaction terminates, can lower the temperature kettle, it is ensured that being carried out continuously of inter process；Meanwhile, this system can collecting reaction product fast and effectively.
2, technical scheme
For solving the problems referred to above, this utility model adopts the following technical scheme that.
A kind of dropwise reaction still, including kettle, dropping pipe and dropping input pipe, the top that described dropping pipe is arranged in kettle；The lower end of described dropping input pipe is connected with dropping pipe, and its upper end is stretched out outside kettle.
As further improvement of the utility model, described dropping pipe is annular tubular structure, liquid dropping hole is distributed along its surrounding.
As further improvement of the utility model, described dropping input pipe is provided with control valve.
As further improvement of the utility model, described control valve is plug valve.
As further improvement of the utility model, in described kettle, it is provided with heater；Described heater is to be arranged on the jet chimney inside kettle in the shape of a spiral, and jet chimney is provided with steam inlet and steam (vapor) outlet.
As further improvement of the utility model, described kettle is externally provided with chiller；Described chiller is helical coil adjoining pipe on kettle outer wall；Described adjoining pipe is provided with cooling water inlet and coolant outlet.
As further improvement of the utility model, also include agitating device；Described agitating device includes stirring motor and shaft；Described stirring motor is arranged on the top of kettle；The lower end of described shaft is stretched in kettle, is provided with stirring vane, and shaft is driven by stirring motor.
A kind of dropwise reaction still system, including reactor；Described reactor uses above-mentioned a kind of dropwise reaction still.
As further improvement of the utility model, also include condenser and receiving slit；Described kettle is provided with discharging opening, and discharging opening is sequentially connected with condenser, receiving slit by pipeline.
As further improvement of the utility model, described condenser is made up of first-stage condenser and secondary condenser.
3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) a kind of dropwise reaction still of the present utility model, dropping pipe is added in kettle, dropping liquid is by, in dropping input pipe entrance dropping pipe, scattering, disperse to be added drop-wise in kettle the most uniformly, evenly in dropping pipe, with the contacting of liquid larger area in kettle, reaction can be fully rapidly performed by, and reaction effect is good, improves reaction efficiency, productivity is high, which reduces the waste of raw material and the generation of impurity；
(2) a kind of dropwise reaction still of the present utility model, dropping input pipe arranges plug valve, can be according to the flow velocity needing control dropping liquid of reaction, strong adaptability；
(3) a kind of dropwise reaction still of the present utility model, arranges heater in kettle, and being passed through steam can heat liquid in kettle, and jet chimney directly directly contacts with reaction liquid, import effective, be greatly improved the starting velocity of reaction, shorten the response time；Chiller outside kettle, being passed through cooling water can carry out fast cooling to reacted high temperature kettle, it is ensured that immediately carrying out of subsequent processing, without being detained between two-step；The separately design of heater and chiller, and do not use same tubing, it being not required to toggling between steam and cooling water, improve work efficiency, pipeline will not cold and heat succeed each other, and reduces energy loss, improves capacity usage ratio, also extends pipeline life；
(4) a kind of dropwise reaction still of the present utility model, liquid in kettle is stirred by agitating device so that mixing more uniform between reaction liquid, reaction is more abundant, and heat of reaction can spread timely, and solution is heated evenly, and improves reaction efficiency；
(5) a kind of dropwise reaction still system of the present utility model, the gaseous products that reactor reaction produces is formed liquid after being condensed by the condensed device of discharging opening, is collected by dump tank, completes the instant collection of product；
(6) a kind of dropwise reaction still system of the present utility model, condenser is made up of condensed in two stages device, is reactor gaseous products sufficiently cool one-tenth liquid, improves product recoveries；
(7) a kind of dropwise reaction still of the present utility model and system thereof, simple in construction, reasonable in design, it is easy to manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of dropwise reaction still system of the present utility model；
Fig. 2 is the structural representation of the dropping pipe in Fig. 1.
In figure: 1, kettle；2, dropping pipe；3, dropping input pipe；4, control valve；5, stirring motor；6, shaft；7, stirring vane；8, heater；9, chiller；10, discharging opening；11, condenser；12, receiving slit.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, this utility model is further described below.
Embodiment 1
As depicted in figs. 1 and 2, a kind of dropwise reaction still of the present embodiment, including kettle 1, dropping pipe 2, dropping input pipe 3 and agitating device.Wherein, described dropping pipe 2 is annular tubular structure, liquid dropping hole is distributed along its surrounding；Dropping pipe 2 is arranged on the top in kettle 1.The lower end of described dropping input pipe 3 is connected with dropping pipe 2, and its upper end is stretched out outside kettle 1；Being provided with control valve 4 on dropping input pipe 3, in the present embodiment, control valve 4 uses plug valve.
Described agitating device includes stirring motor 5 and shaft 6；Described stirring motor 5 is arranged on the top of kettle 1；The lower end of described shaft 6 is stretched in kettle 1, is provided with stirring vane 7, and the upper end of shaft 6 is connected with stirring motor 5 by shaft coupling.Stirring motor 5 drives shaft 6 to rotate, and drives stirring vane 7 to be stirred liquid in kettle 1.
In the present embodiment, in described kettle 1, it is provided with heater 8；Described heater 8 is to be arranged on the jet chimney inside kettle 1 in the shape of a spiral, and jet chimney is provided with steam inlet and steam (vapor) outlet.Described kettle 1 is externally provided with chiller 9；Described chiller 9 is helical coil adjoining pipe on kettle 1 outer wall；Described adjoining pipe is provided with cooling water inlet and coolant outlet.
Time specifically used, it is passed through steam from the steam inlet of heater 8 to heat, after heating 100 DEG C, added by dropping input pipe 3 and need the solution of dropping, solution disperses dropping to enter in kettle 1 more uniformly, evenly by dropping pipe 2, reaction is carried out, and is controlled the speed of dropping solution in reaction by control valve 4；Meanwhile, agitating device works, and is stirred reaction liquid.After reaction terminates, it is passed through cooling water from the cooling water inlet of chiller 9, to kettle 1 cooling down, produces and immediately enter subsequent processing.
A kind of dropwise reaction still of the present utility model, reaction solution can disperse dropping uniformly, evenly, and rate of addition is controlled, reaction solution contact area is big, mix homogeneously is abundant, reaction can be fully rapidly performed by, and reaction effect is good, improves reaction efficiency, productivity is high, which reduces the waste of raw material and the generation of impurity；Preheating before reaction, reaction starting velocity is fast, shortens the response time；After reaction, reactor can quickly cool down, and production department enters subsequent processing immediately, it is ensured that the seriality of inter process, reduces the production cycle.
Embodiment 2
A kind of dropwise reaction still system of the present embodiment, including reactor, condenser 11 and receiving slit 12.Wherein the structure of reactor is identical with the dropwise reaction still in embodiment 1, and is provided with discharging opening 10 at kettle 1.The discharging opening 10 of kettle 1 is sequentially connected with condenser 11, receiving slit 12 by pipeline.Described condenser 11 is made up of first-stage condenser and secondary condenser.
This dropwise reaction still system, in use, the gaseous products that reactor produces enters condenser 11 from discharging opening 10, after twice condensation, forms liquid, and is collected by receiving slit 12, completes the instant collection of dropwise reaction product.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, in the case of creating objective without departing from this utility model, design the frame mode similar to this technical scheme and embodiment without creative, protection domain of the present utility model all should be belonged to.
Claims (8)
1. a dropwise reaction still, including kettle (1), it is characterized in that: also including dropping pipe (2), dropping input pipe (3) and include agitating device, described dropping pipe (2) is arranged on the top in kettle (1)；The lower end of described dropping input pipe (3) is connected with dropping pipe (2), and kettle (1) is stretched out outward in its upper end；Described dropping input pipe (3) is provided with control valve (4)；Described agitating device includes stirring motor (5) and shaft (6)；Described stirring motor (5) is arranged on the top of kettle (1)；The lower end of described shaft (6) is stretched in kettle (1), is provided with stirring vane (7), and shaft (6) is driven by stirring motor (5).
A kind of dropwise reaction still the most according to claim 1, it is characterised in that: described dropping pipe (2) is annular tubular structure, liquid dropping hole is distributed along its surrounding.
A kind of dropwise reaction still the most according to claim 1, it is characterised in that: described control valve (4) is plug valve.
4. according to a kind of dropwise reaction still described in claim 1 or 2 or 3, it is characterised in that: it is provided with heater (8) in described kettle (1)；Described heater (8) is the jet chimney being arranged on kettle (1) inner side in the shape of a spiral, and jet chimney is provided with steam inlet and steam (vapor) outlet.
A kind of dropwise reaction still the most according to claim 4, it is characterised in that: described kettle (1) is externally provided with chiller (9)；Described chiller (9) is helical coil adjoining pipe on kettle (1) outer wall；Described adjoining pipe is provided with cooling water inlet and coolant outlet.
6. a dropwise reaction still system, including reactor, it is characterised in that: described reactor uses any one dropwise reaction still in claim 1-5.
A kind of dropwise reaction still system the most according to claim 6, it is characterised in that: also include condenser (11) and receiving slit (12)；Described kettle (1) is provided with discharging opening (10), and discharging opening (10) is sequentially connected with condenser (11), receiving slit (12) by pipeline.
A kind of dropwise reaction still system the most according to claim 7, it is characterised in that: described condenser (11) is made up of first-stage condenser and secondary condenser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620252710.8U CN205570321U (en) | 2016-03-28 | 2016-03-28 | Dropwise add reation kettle and system thereof |
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| CN201620252710.8U CN205570321U (en) | 2016-03-28 | 2016-03-28 | Dropwise add reation kettle and system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107446911A (en) * | 2017-07-28 | 2017-12-08 | 华南理工大学 | A kind of microorganism embedded immobilization bead and its method and special purpose device and application |
| CN112275234A (en) * | 2020-10-26 | 2021-01-29 | 宁夏万香源生物科技有限公司 | Peach aldehyde production system and production method |
| CN112774606A (en) * | 2020-12-24 | 2021-05-11 | 安道麦安邦(江苏)有限公司 | Production method and equipment of high-purity buprofezin intermediate 1-isopropyl-3-tert-butylthiourea |
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2016
- 2016-03-28 CN CN201620252710.8U patent/CN205570321U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107446911A (en) * | 2017-07-28 | 2017-12-08 | 华南理工大学 | A kind of microorganism embedded immobilization bead and its method and special purpose device and application |
| CN107446911B (en) * | 2017-07-28 | 2021-02-19 | 华南理工大学 | Microorganism embedding immobilized pellet and method thereof, special device and application |
| CN112275234A (en) * | 2020-10-26 | 2021-01-29 | 宁夏万香源生物科技有限公司 | Peach aldehyde production system and production method |
| CN112275234B (en) * | 2020-10-26 | 2023-06-27 | 宁夏万香源生物科技有限公司 | Peach aldehyde production system and production method |
| CN112774606A (en) * | 2020-12-24 | 2021-05-11 | 安道麦安邦(江苏)有限公司 | Production method and equipment of high-purity buprofezin intermediate 1-isopropyl-3-tert-butylthiourea |
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