CN210965070U

CN210965070U - N, N-dimethyl propyl acrylamide is with rapid cooling reation kettle

Info

Publication number: CN210965070U
Application number: CN201920779590.0U
Authority: CN
Inventors: 杨恺; 葛士彬; 李现松; 杨帅; 任飞翔; 傅泽恒
Original assignee: Wuxi Hit Saint Optoelectronic Material Technology Co ltd
Current assignee: Wuxi Hit Saint Optoelectronic Material Technology Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-07-10
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses an N, N-rapid cooling reation kettle for dimethyl propyl acrylamide, including reation kettle, reation kettle establishes in reation kettle inner jacket, and the double-layered cover is established in reation kettle outer jacket in the reation kettle, reation kettle jacket is equipped with jacket conduction oil entry and jacket conduction oil export outward on the jacket, reation kettle concatenates outer jacket conduction oil export in proper order through the jacket conduction oil export and presss from both sides the jacket conduction oil entry again after jacket conduction oil input pump, heat exchanger, conduction oil holding vessel, the jacket conduction oil input pump, forms a closed circulation. This N, N-dimethyl propyl acrylamide is with rapid cooling reation kettle, very big improvement production efficiency, reduced the production energy consumption simultaneously.

Description

N, N-dimethyl propyl acrylamide is with rapid cooling reation kettle

Technical Field

The utility model belongs to the technical field of but rapid cooling electrical heating enamel reactor, concretely relates to N, N-rapid cooling reation kettle for dimethyl propyl acrylamide.

Background

The enamel reaction kettle has the double advantages of glass stability and metal strength, and is excellent corrosion-resistant equipment. In industrial production, many materials have strong corrosiveness, and some materials can generate polymerization reaction or other side reaction when contacting with a common iron-based reaction kettle, and when N, N-dimethylpropylacrylamide is produced, the reaction temperature is over 160 ℃ or even 180 ℃, and the problems are more prominent, and an enamel reaction kettle is the best choice.

The enamel reactor is formed by spraying enamel with high silicon content on the surface of a low-carbon steel blank and roasting the enamel at high temperature of about 900 ℃ to ensure that the enamel is tightly adhered to the surface of the metal steel blank. After the enamel kettle is manufactured, the glass lining of the enamel kettle has pre-compression stress, and the steel plate has pre-stretching stress. Since the prestress is related to the linear expansion coefficient and the elongation rate, which are closely related to the temperature, the working temperature of the enamel kettle has a great influence on the use of the enamel kettle. The enamel will break if the stress produced by the enamel exceeds its service stress due to large temperature changes.

When using enamel reactor to carry out N, N-dimethyl propyl acrylamide's production, can face the cooling problem of reaction end back material, if use ordinary enamel jacket reation kettle, carry out circulation heating and circulation cooling to the conduction oil, the process of whole conduction oil heating and cooling will waste a large amount of energy consumptions, but use the enamel reactor of electric heating, the whole sealings of conduction oil are in pressing from both sides the cover, the volume of conduction oil is less, the energy consumption that needs the heating will very big reduction, but the conduction oil in the cover can't carry out the heat exchange cooling with external circulation, the cooling difficulty, low in production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an N, N-dimethyl propyl acrylamide is with rapid cooling reation kettle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an N, N-rapid cooling reation kettle for dimethyl propyl acrylamide, includes reation kettle, reation kettle establishes in reation kettle inner jacket, and the jacketed cover is established in reation kettle outer jacket in the reation kettle, reation kettle outer jacket is equipped with jacket conduction oil entry and jacket conduction oil export, reation kettle connects gradually outer jacket conduction oil export through jacket conduction oil export and gets back to jacket conduction oil entry again after jacket conduction oil output pump, heat exchanger, conduction oil holding vessel, the jacket conduction oil input pump, forms a closed circulation.

Preferably, the heat exchanger is provided with a heat exchanger cooling liquid inlet and a heat exchanger cooling liquid outlet.

Preferably, a heat conduction oil storage tank heating rod is arranged in the heat conduction oil storage tank, and the heat conduction oil storage tank is connected with the heat exchanger through an inlet of the external circulation heat conduction oil storage tank.

Preferably, a heating rod of the inner jacket of the reaction kettle is arranged inside the inner jacket of the reaction kettle.

Preferably, the reaction temperature in the reaction kettle is between 160 ℃ and 180 ℃.

Preferably, the reaction temperature of the jacket in the reaction kettle is between 180 and 200 ℃.

The utility model discloses a technological effect and advantage: the N, N-dimethyl propyl acrylamide rapid cooling reaction kettle can uniformly and rapidly cool an electric heating enamel kettle after high-temperature reaction, the enamel reaction kettle cannot be damaged by ceramic explosion of the enamel reaction kettle due to too rapid cooling, a heat conduction oil heating rod of a jacket in the reaction kettle only needs to heat a little heat conduction oil in the jacket in the reaction kettle to 200 ℃ during reaction, the heat conduction oil in a heat conduction oil storage tank only needs to be heated to 140 ℃ temporarily during cooling, the heat conduction oil of the jacket needs to be heated to 200 ℃ during the whole reaction process through external circulation heating of the heat conduction oil, the temperature required by the reaction is kept, the required energy consumption is large, the cooling process is difficult as well, meanwhile, the heat conduction oil is not added in the reaction process through the outer jacket of the reaction kettle, good heat preservation effect can be achieved, and the energy consumption required by heating is further reduced The N-dimethyl propyl acrylamide rapid cooling reaction kettle not only saves energy and reduces consumption, but also reduces the temperature rapidly.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

in the figure: 1. a reaction kettle; 2. a stirring paddle; 3. the outer jacket of the reaction kettle; 4. a jacket is arranged in the reaction kettle; 5. a heating rod is sleeved in the reaction kettle; 6. an external jacket heat-conducting oil inlet; 7. the heat conducting oil of the outer jacket is input into the pump; 8. a heat conducting oil storage tank; 9. a heating rod of the heat conducting oil storage tank; 10. an inlet of the external circulation heat conduction oil storage tank; 11. a heat exchanger; 12. an outer jacket heat-conducting oil output pump; 13. an outer jacket heat-conducting oil outlet; 14. a heat exchanger coolant inlet; 15. and a cooling liquid outlet of the heat exchanger.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a N, N-dimethyl propyl is rapid cooling reation kettle for acrylamide as shown in figure 1, including reation kettle 1, reation kettle 1 establishes in reation kettle inner jacket 4, and reation kettle inner jacket 4 establishes in reation kettle jacket 3, reation kettle jacket is equipped with outer jacket conduction oil entry 6 and outer jacket conduction oil export 13 on 3, reation kettle 1 concatenates outer jacket conduction oil export 13 in proper order through outer jacket conduction oil export 13 and presss from both sides outer jacket conduction oil delivery pump 12, heat exchanger 11, conduction oil holding vessel 8, outer jacket conduction oil input pump 7 back and get back to outer jacket conduction oil entry 6 again, forms a closed circulation.

Specifically, the heat exchanger 11 is provided with a heat exchanger coolant inlet 14 and a heat exchanger coolant outlet 15.

Specifically, a heat conduction oil storage tank heating rod 9 is arranged in the heat conduction oil storage tank 8, and the heat conduction oil storage tank 8 is connected with a heat exchanger 11 through an external circulation heat conduction oil storage tank inlet 10.

Specifically, a heating rod 5 of the inner jacket of the reaction kettle is arranged inside the inner jacket 4 of the reaction kettle.

Specifically, the reaction temperature in the reaction kettle 1 is between 160 ℃ and 180 ℃.

Specifically, the reaction temperature of the jacket 4 in the reaction kettle is between 180 ℃ and 200 ℃.

The working principle is as follows: the N, N-dimethyl propyl acrylamide rapid cooling reaction kettle, after the reaction, the temperature in the reaction kettle 1 is between 160 ℃ and 180 ℃, the temperature of the inner jacket 4 of the reaction kettle is between 180 ℃ and 200 ℃, because of the particularity of the enamel reaction kettle, the temperature difference between the cooling liquid and the reaction kettle 1 can not exceed 80 ℃, and the cooling temperature difference can not exceed 60 ℃ at high temperature, therefore, firstly, the heating rod 9 of the heat conduction oil storage tank is opened to heat the heat conduction oil in the heat conduction oil storage tank 8, after the heating is carried out to 140 ℃, the heating is stopped, the heat conduction oil in the heat conduction oil storage tank 8 is input into the outer jacket 3 of the reaction kettle through the heat conduction oil inlet 6 of the outer jacket by the heat conduction oil input pump 7 of the outer jacket, the heat conduction oil is circularly guided into the heat conduction oil storage tank 8 through the heat exchanger 11 by the heat output pump 12 of the outer jacket, the jacket, after a period of time, after the temperature of the heat conducting oil in the inner jacket 3 of the reaction kettle is consistent with that of the heat conducting oil in the outer jacket 4 of the reaction kettle, the cooling liquid inlet 14 of the heat exchanger is opened to exchange heat for the heat exchanger 11, and the temperature is reduced to the temperature required by the next production step until the reaction kettle 1 is cooled.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an N, N-dimethylpropyl acrylamide is with rapid cooling reation kettle, includes reation kettle (1), its characterized in that: the reactor is characterized in that the reactor (1) is arranged in a reactor inner jacket (4), the reactor inner jacket (4) is arranged in a reactor outer jacket (3), an outer jacket heat-conducting oil inlet (6) and an outer jacket heat-conducting oil outlet (13) are arranged on the reactor outer jacket (3), the reactor (1) is sequentially connected with an outer jacket heat-conducting oil output pump (12), a heat exchanger (11), a heat-conducting oil storage tank (8) and an outer jacket heat-conducting oil input pump (7) in series through the outer jacket heat-conducting oil outlet (13) and then returns to the outer jacket heat-conducting oil inlet (6), and a closed cycle is formed.

2. The rapid cooling reaction kettle for N, N-dimethylpropylacrylamide according to claim 1, wherein: and a heat exchanger cooling liquid inlet (14) and a heat exchanger cooling liquid outlet (15) are formed in the heat exchanger (11).

3. The rapid cooling reaction kettle for N, N-dimethylpropylacrylamide according to claim 1, wherein: the heat conduction oil storage tank is characterized in that a heat conduction oil storage tank heating rod (9) is arranged in the heat conduction oil storage tank (8), and the heat conduction oil storage tank (8) is connected with a heat exchanger (11) through an external circulation heat conduction oil storage tank inlet (10).

4. The rapid cooling reaction kettle for N, N-dimethylpropylacrylamide according to claim 1, wherein: and a heating rod (5) of the inner jacket of the reaction kettle is arranged in the inner jacket (4) of the reaction kettle.

5. The rapid cooling reaction kettle for N, N-dimethylpropylacrylamide according to claim 1, wherein: the reaction temperature in the reaction kettle (1) is between 160 ℃ and 180 ℃.

6. The rapid cooling reaction kettle for N, N-dimethylpropylacrylamide according to claim 1, wherein: the reaction temperature of the jacket (4) in the reaction kettle is between 180 and 200 ℃.