CN210473091U

CN210473091U - Distillation condensing equipment in 2, 5-dimethoxy dihydrofuran production

Info

Publication number: CN210473091U
Application number: CN201920905728.7U
Authority: CN
Inventors: 陈瑞; 陈学良
Original assignee: Laohekou Guanglian Technology Co ltd
Current assignee: Laohekou Guanglian Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-08
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a distillation condensing equipment in 2, 5-dimethoxy dihydrofuran production relates to 2, 5-dimethoxy dihydrofuran production technical field, including the retort, the intermediate layer of retort is provided with the second heat preservation, the puddler is installed in the outside of rotation axis, the inside of the first jar of body and the second jar of body is provided with first condenser pipe and second condenser pipe respectively, the intermediate layer of the first jar of body and the second jar of body all is provided with first heat preservation. The utility model discloses a second heat preservation that sets up has reduced thermal scattering and disappearing for it is rapider to heat up, has shortened heating time, keeps warm to the coolant liquid through the first heat preservation that sets up, avoids the coolant liquid to absorb external heat and leads to rising temperature too fast, through the first condenser pipe and the second condenser pipe that set up, through letting in the circulating water to the first jar internal, lets in the refrigerated water to the second jar internal, realizes the second grade condensation, the effectual condensation efficiency that has improved.

Description

Distillation condensing equipment in 2, 5-dimethoxy dihydrofuran production

Technical Field

The utility model relates to a 2, 5-dimethoxy dihydrofuran production technical field specifically is a distillation condensing equipment in 2, 5-dimethoxy dihydrofuran production.

Background

The furan-containing aqueous solution is obtained by etherification and reduction of furan, methanol and ammonium bromide are added into an electrolytic cell and stirred until the ammonium bromide is dissolved, the furan is added when the solution is cooled to 0 ℃, the electrolytic cell is sealed and continuously cooled to below-5 ℃, an electrolytic circuit is opened to input current, the voltage is gradually adjusted to about 15V after normal operation, the current is adjusted to 40-45A, the electrolytic temperature is controlled to be 0-5 ℃, after the electrolysis is finished, the stirring is stopped, the electrolyte is sucked into a methanol recovery pot to be alkalized, then ammonia gas is removed by heating, the methanol is evaporated, the methanol recovery is finished when the gas phase temperature reaches 65 ℃, the methanol is cooled, filtered, the filtrate is fractionated, and the positive boiling fraction of 152 and 164 ℃ is collected, thus obtaining the 2, 5-dimethoxy dihydrofuran.

The existing distillation equipment does not have a heat preservation measure, so that the heat is greatly dissipated in the distillation process to cause energy waste, the heating time is long, the efficiency is low, tap water is usually adopted as cooling liquid during condensation, the condensation effect is poor, and the raw material gas is caused to escape to cause resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the existing distillation equipment does not have a heat preservation measure, the heat is greatly dissipated in the distillation process to cause energy waste, the heating time is long, the efficiency is low, tap water is usually adopted as cooling liquid during condensation, the condensation effect is poor, and the raw material gas escapes to cause resource waste, the distillation and condensation device in the production of the 2, 5-dimethoxy dihydrofuran is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a distillation condensing device in production of 2, 5-dimethoxy dihydrofuran comprises a distillation retort, wherein a heating base is installed at the bottom end of the distillation retort, a second heat preservation layer is arranged on an interlayer of the distillation retort, a feed inlet and a rotating motor are installed at the top end of the distillation retort, the output end of the rotating motor is connected with a rotating shaft extending to the inside of the distillation retort, a stirring rod is installed on the outer side of the rotating shaft, a temperature sensor is installed on the inner wall of the distillation retort, a connecting pipe is installed at the top end of the distillation retort, an electromagnetic valve is installed at one end, close to the distillation retort, of the connecting pipe, a condensing tank is installed at one end, far away from the distillation retort, of the connecting pipe, a discharge port is installed at the bottom end of the condensing tank, the condensing tank comprises a first tank body and a second tank body, a, the interlayer of the first tank body and the interlayer of the second tank body are both provided with a first heat preservation layer.

Preferably, first inlet and first liquid outlet are installed to one side of the first jar of body, and just first inlet is located the below of first liquid outlet.

Preferably, a second liquid inlet and a second liquid outlet are installed on one side of the second tank body, the second liquid inlet is located below the second liquid outlet, and a sealing plate is arranged between the first tank body and the second tank body.

Preferably, the first condensation pipe is communicated with the connecting pipe, the first condensation pipe is communicated with the second condensation pipe, the second condensation pipe is communicated with the discharge hole, and the first condensation pipe and the second condensation pipe are both in a snake-shaped structure.

Preferably, the first heat-insulating layer and the second heat-insulating layer are both made of aluminum silicate cotton felt.

Preferably, the temperature sensor is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with the electromagnetic valve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a rotating electrical machines that sets up drives rotation axis and puddler and rotates, stir the raw materials and make to be heated more evenly, the second heat preservation through setting up has reduced thermal scattering and disappearing, make the intensification rapider, heating time has been shortened, production efficiency is improved, keep warm to the coolant liquid through the first heat preservation that sets up, it can carry out abundant heat transfer to the condenser pipe to have guaranteed the coolant liquid, it leads to rising up temperature too fast to avoid the coolant liquid to absorb external heat, through first condenser pipe and the second condenser pipe that sets up, through to the internal circulating water that lets in of first jar, to the internal refrigerated water that lets in of second jar, realize the secondary condensation, the effectual condensation efficiency that has improved, avoid raw material gas to escape to cause the wasting of resources.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the condensing tank of the present invention;

fig. 3 is a schematic structural diagram of the first condensation pipe and the second condensation pipe of the present invention;

fig. 4 is a schematic diagram of the internal structure of the distillation tank of the present invention.

In the figure: 1. a distillation tank; 2. heating the base; 3. a rotating electric machine; 4. a connecting pipe; 5. an electromagnetic valve; 6. a condensing tank; 7. a first tank; 8. a second tank; 9. a first liquid inlet; 10. a first liquid outlet; 11. a second liquid inlet; 12. a second liquid outlet; 13. a discharge port; 14. a first insulating layer; 15. a first condenser pipe; 16. a second condenser pipe; 17. a second insulating layer; 18. a rotating shaft; 19. a stirring rod; 20. a temperature sensor; 21. and (4) feeding a material inlet.

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 rotating electrical machines (model 5IK90A-CF) and solenoid valves (model ZC) mentioned in the present invention can be purchased by market or private users.

Referring to fig. 1-4, a distillation condensing device in the production of 2, 5-dimethoxy dihydrofuran comprises a distillation retort 1, a heating base 2 is installed at the bottom end of the distillation retort 1, a second heat-insulating layer 17 is arranged on the interlayer of the distillation retort 1, a feed inlet 21 and a rotary motor 3 are installed at the top end of the distillation retort 1, the output end of the rotary motor 3 is connected with a rotary shaft 18 extending into the distillation retort 1, a stirring rod 19 is installed at the outer side of the rotary shaft 18, a temperature sensor 20 is installed on the inner wall of the distillation retort 1, a connecting pipe 4 is installed at the top end of the distillation retort 1, an electromagnetic valve 5 is installed at one end of the connecting pipe 4 close to the distillation retort 1, a condensing tank 6 is installed at one end of the connecting pipe 4 far away from the distillation retort 1, a discharge outlet 13 is installed at the bottom end of the condensing tank 6, the condensing tank 6 comprises a first tank 7 and a second tank 8, a, the interlayer of the first tank 7 and the second tank 8 is provided with a first heat preservation layer 14.

Drive rotation axis 18 and puddler 19 through the rotating electrical machines 3 that set up and rotate, stir the raw materials and make to be heated more evenly, second heat preservation 17 through setting up has reduced thermal scattering and disappearing, make the intensification rapider, heating time has been shortened, production efficiency is improved, heat preservation is carried out to the coolant liquid through the first heat preservation 14 that sets up, it can carry out abundant heat transfer to the condenser pipe to have guaranteed the coolant liquid, it leads to rising temperature too fast to avoid the coolant liquid to absorb external heat, through the first condenser pipe 15 and the second condenser pipe 16 that set up, through letting in the circulating water to the internal 7 of first jar, let in the refrigerated water in the second jar 8, realize the second grade condensation, the effectual condensation efficiency that has improved, avoid raw materials gas to escape to cause the wasting of resources.

Please refer to fig. 2, a first liquid inlet 9 and a first liquid outlet 10 are installed at one side of the first tank 7, the first liquid inlet 9 is located below the first liquid outlet 10, a second liquid inlet 11 and a second liquid outlet 12 are installed at one side of the second tank 8, the second liquid inlet 11 is located below the second liquid outlet 12, and a sealing plate is installed between the first tank 7 and the second tank 8.

Through letting in the circulating water from first inlet 9 to first jar of internal 7, let in the refrigerated water from second inlet 11 to the second jar of internal 8, realize the second grade condensation, the effectual condensation efficiency that has improved avoids raw materials gas to escape and causes the wasting of resources.

Please refer to fig. 3, the first condensation pipe 15 is connected to the connection pipe 4, the first condensation pipe 15 is connected to the second condensation pipe 16, the second condensation pipe 16 is connected to the discharge port 13, and the first condensation pipe 15 and the second condensation pipe 16 are both of serpentine structures.

Through the first condenser pipe 15 and the second condenser pipe 16 of the serpentine structure who sets up, increased the dwell time of raw materials gas in the condenser pipe, increased the area of contact of coolant liquid with the condenser pipe simultaneously, improved the condensation effect.

Please refer to fig. 1 and 4, the first insulating layer 14 and the second insulating layer 17 are made of aluminum silicate felt, the temperature sensor 20 is electrically connected to the single chip, and the single chip is electrically connected to the electromagnetic valve 5.

The aluminum silicate cotton felt is good high temperature resistant insulation material, and is comparatively general and the cost is lower, detects the inside liquid temperature of retort 1 through the temperature sensor 20 that sets up, gives the singlechip with signal transmission when reaching the rated value, and the singlechip is handled the analysis back to the signal, and control solenoid valve 5 is opened and is condensed.

The working principle is as follows: the power is switched on, the raw material is added into the distillation retort 1 from the feed inlet 21, the heating base 2 heats the distillation retort 1, the second heat-insulating layer 17 reduces heat loss, so that the temperature rise is quicker, the heating time is shortened, the production efficiency is improved, the rotating motor 3 drives the rotating shaft 18 and the stirring rod 19 to rotate, the raw material is stirred so as to be heated more uniformly, when the temperature sensor 20 detects that the temperature of the liquid in the distillation retort 1 reaches a rated value, a signal is transmitted to the single chip microcomputer, after the single chip microcomputer processes and analyzes the signal, the electromagnetic valve 5 is controlled to be opened for condensation, the raw material gas enters the first condensation pipe 15 through the connecting pipe 4, the circulating water enters the first tank body 7 from the first liquid inlet 9, the circulating water is discharged from the first liquid outlet 10, after primary condensation is carried out on the raw material gas, the gas enters the second condensation pipe 16, the chilled water enters the second tank body 8 from the second liquid, realize the second grade condensation, the effectual condensation efficiency that has improved, avoid raw material gas to escape and cause the wasting of resources, discharge from discharge gate 13 at last, serpentine structure's first condenser pipe 15 and second condenser pipe 16, the dwell time of raw material gas in the condenser pipe has been increased, the area of contact of coolant liquid with the condenser pipe has been increased simultaneously, the condensation effect has been improved, first heat preservation 14 keeps warm to the coolant liquid, it can carry out abundant heat transfer to the condenser pipe to have guaranteed the coolant liquid, it leads to rising temperature too fast to avoid the coolant liquid to absorb external heat.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a distillation condensing equipment in 2, 5-dimethoxy dihydrofuran production, includes retort (1), its characterized in that: the heating base (2) is installed to the bottom of retort (1), the intermediate layer of retort (1) is provided with second heat preservation (17), feed inlet (21) and rotating electrical machines (3) are installed on the top of retort (1), the output of rotating electrical machines (3) is connected with rotation axis (18) that extends to retort (1) inside, puddler (19) are installed in the outside of rotation axis (18), temperature sensor (20) are installed to the inner wall of retort (1), connecting pipe (4) are installed on the top of retort (1), solenoid valve (5) are installed to the one end that connecting pipe (4) are close to retort (1), condensing jar (6) is installed to the one end that connecting pipe (4) kept away from retort (1), and discharge gate (13) are installed to the bottom of condensing jar (6), condensing jar (6) include the first jar body (7) and the second jar body (8), the interior of the first tank body (7) and the second tank body (8) is respectively provided with a first condensation pipe (15) and a second condensation pipe (16), and the interlayers of the first tank body (7) and the second tank body (8) are respectively provided with a first heat-insulating layer (14).

2. The distillation and condensation device for producing 2, 5-dimethoxy dihydrofuran according to claim 1, wherein: first inlet (9) and first liquid outlet (10) are installed to one side of the first jar of body (7), and just first inlet (9) are located the below of first liquid outlet (10).

3. The distillation and condensation device for producing 2, 5-dimethoxy dihydrofuran according to claim 1, wherein: a second liquid inlet (11) and a second liquid outlet (12) are installed on one side of the second tank body (8), the second liquid inlet (11) is located below the second liquid outlet (12), and a sealing plate is arranged between the first tank body (7) and the second tank body (8).

4. The distillation and condensation device for producing 2, 5-dimethoxy dihydrofuran according to claim 1, wherein: the first condensation pipe (15) is communicated with the connecting pipe (4), the first condensation pipe (15) is communicated with the second condensation pipe (16), the second condensation pipe (16) is communicated with the discharge hole (13), and the first condensation pipe (15) and the second condensation pipe (16) are both in a snake-shaped structure.

5. The distillation and condensation device for producing 2, 5-dimethoxy dihydrofuran according to claim 1, wherein: the first heat-insulating layer (14) and the second heat-insulating layer (17) are both made of aluminum silicate cotton felt.

6. The distillation and condensation device for producing 2, 5-dimethoxy dihydrofuran according to claim 1, wherein: the temperature sensor (20) is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with the electromagnetic valve (5).