CN210448150U - Condenser is used in GBL production - Google Patents

Abstract

The utility model discloses a condenser for GBL production, including the sealed shell, joint portion is installed to sealed shell inner wall both sides, be connected with cooling tube and breather pipe between the joint portion, the cooling tube is in inside the breather pipe, the lower surface of breather pipe is provided with the intake pipe, the intake pipe runs through the sealed shell, the upper surface of breather pipe is provided with the outlet duct, the outlet duct runs through the sealed shell, the lower surface of breather pipe sets up the collector tube, the bottom of collector tube is connected with the transfer line, the transfer line runs through the sealed shell; the utility model discloses utilize the breather pipe to wrap up the cooling tube, make the GBL of vaporization flow along the cooling tube, it is long when reinforcing GBL unit volume's cooling, improve GBL's productivity and the purity of hydrogen, it is fixed with a plurality of breather pipes and cooling tube linking to utilize linking portion to link up simultaneously, the clearance and the change of the later stage breather pipe of being convenient for and cooling tube, simple structure, it is convenient to maintain.

Description

Condenser is used in GBL production

Technical Field

The utility model relates to a GBL production technical field specifically is a condenser is used in GBL production.

Background

GBL, also called gamma-butyrolactone, is an important organic chemical raw material and a fine chemical intermediate, and is an important raw material for producing N-methylpyrrolidone (NMP), and the yield of GBL directly influences the yield of NMP.

At present, gamma-butyrolactone (GBL) is mainly prepared by 1, 4-butanediol through dehydrogenation reaction, in the process, raw materials for synthesizing GBL pass through a vaporizer and a superheater and then enter a dehydrogenation reactor for reaction, reaction products comprise GBL, hydrogen and other byproducts, the products are changed into liquid phase in the process of passing through a heat exchanger and a condenser and enter a GBL crude product storage tank, in the process of passing through the condenser, except that the products are changed from gas phase to liquid phase, the hydrogen can be separated from the condensed liquid phase, and the separated hydrogen is recycled. Traditional condenser condensation effect is poor, and is unfavorable for retrieving respectively of hydrogen and GBL, and the GBL of vaporization is not cooled off completely, just is retrieved along with the hydrogen that has appeared, contains a large amount of GBL in making the hydrogen of retrieving, and traditional cooler later stage is very troublesome to the clearance and the change of cooling tube moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a condenser is used in GBL production to the traditional condenser condensation effect who proposes in solving above-mentioned background art is poor, and is unfavorable for retrieving respectively of hydrogen and GBL, and the clearance of cooling tube and change very trouble scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme:

a condenser for GBL production comprises a sealed shell, wherein the sealed shell is of a flat hollow cuboid structure, the two sides of the inner wall of the sealed shell are provided with connecting parts through connecting pieces, a cooling pipe and a vent pipe are connected between the connecting parts, the cooling pipe is arranged in the vent pipe, the input end and the output end of the cooling pipe respectively penetrate through the sealed shell, an air inlet pipe is arranged on the lower surface of the vent pipe close to the input end of the cooling pipe and communicated with the vent pipe, the air inlet pipe penetrates through the sealed shell, an air outlet pipe is arranged on the upper surface of the vent pipe close to the output end of the cooling pipe and communicated with the vent pipe, the air outlet pipe penetrates through the sealed shell, a liquid conveying pipe is arranged on the lower surface of the vent pipe, the liquid collecting pipe is communicated with the vent pipe, and the bottom of the liquid collecting pipe is, the infusion tube penetrates through the sealing shell.

Preferably, the joint part comprises an external connecting pipe, an internal connecting pipe is arranged in the external connecting pipe through a connecting block, and the external connecting pipe and the internal connecting pipe are respectively connected with the ventilating pipe and the cooling pipe.

Preferably, the cooling pipe penetrates through the sealing shell, and a fixing pipe is arranged at the position, on the outer side of the cooling pipe, of the cooling pipe and connected with the vent pipe.

Preferably, both sides of the sealing case and the top cover are detachable.

Preferably, the infusion tube is inclined, and the output end of the infusion tube penetrates through the bottom of the sealing shell.

Preferably, the connecting piece and the fixed pipe are fixedly connected to the inner side wall of the sealing shell through screws.

Preferably, the air pipe and the cooling pipe are horizontally arranged in a serpentine shape.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses utilize the breather pipe to wrap up the cooling tube, make the GBL of vaporization flow along the cooling tube, it is long when reinforcing GBL unit volume's cooling, improve GBL's productivity and the purity of hydrogen, it is fixed with a plurality of breather pipes and cooling tube linking to utilize linking portion to link up simultaneously, the clearance and the change of the later stage breather pipe of being convenient for and cooling tube, simple structure, just with later maintenance.

Drawings

Fig. 1 is a schematic view of the top view of the internal structure of the present invention;

FIG. 2 is a schematic view of the front view of the internal structure of the present invention;

fig. 3 is a schematic view of the rear view internal structure of the present invention;

fig. 4 is a schematic view of the top-view internal structure of the joint portion according to the present invention.

In the figure: 1. sealing the shell; 2. a joining section; 201. an external connection pipe; 202. connecting blocks; 203. an inner connecting pipe; 3. a breather pipe; 4. a cooling tube; 5. a connecting member; 6. a fixed tube; 7. an air inlet pipe; 8. a liquid collecting pipe; 9. a transfusion tube; 10. and an air outlet pipe.

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.

Embodiment is condenser for GBL production

The embodiment is a condenser for GBL production, refer to fig. 1-4, and comprises a sealed shell 1, the sealed shell 1 is a flat hollow cuboid structure, two sides of the inner wall of the sealed shell 1 are provided with linking parts 2 through connecting pieces 5, a cooling pipe 4 and a vent pipe 3 are connected between the linking parts 2, the cooling pipe 4 is arranged inside the vent pipe 3, the input end and the output end of the cooling pipe 4 respectively penetrate through the sealed shell 1, the lower surface of the vent pipe 3 near the input end of the cooling pipe 4 is provided with an air inlet pipe 7, the air inlet pipe 7 is communicated with the vent pipe 3, the air inlet pipe 7 penetrates through the sealed shell 1, the upper surface of the vent pipe 3 near the output end of the cooling pipe 4 is provided with an air outlet pipe 10, the air outlet pipe 10 is communicated with the vent pipe 3, the air outlet pipe 10 penetrates through the sealed shell 1, the lower surface of the, the infusion tube 9 penetrates the sealing shell 1.

Specifically, the joint part 2 comprises an outer joint pipe 201, an inner joint pipe 203 is installed inside the outer joint pipe 201 through a connecting block 202, the outer joint pipe 201 and the inner joint pipe 203 are respectively connected with the vent pipe 3 and the cooling pipe 4, the connection mode between the pipelines mentioned in the specification is a mature technology in the prior art, and detailed explanation is not needed one by one, through the arrangement of the joint part 2, the vent pipe 3 and the cooling pipe 4 can be fixed, and through the joint of a plurality of vent pipes 3 and the cooling pipe 4, the later-stage vent pipe 3 and the cooling pipe 4 can be conveniently cleaned and replaced.

Specifically, the position that cooling tube 4 runs through sealed shell 1 is provided with fixed pipe 6, and fixed pipe 6 cover is in the outside of cooling tube 4, and links to each other with breather pipe 3, and it is fixed to help linking up cooling tube 4 and breather pipe 3 through setting up fixed pipe 6.

Specifically, both sides and the top cap of sealed shell 1 are all dismantled, so set up, the dismouting clearance of the later stage cooling tube 4 of being convenient for and breather pipe 3.

Specifically, transfer line 9 is the slope form, and the output runs through the bottom of sealed shell 1, sets up transfer line 9 into the slope form, is convenient for derive the condenser with the liquid GBL who collects to in pipeline transport to GBL crude storage tank.

Specifically, connecting piece 5 and fixed pipe 6 all through screw fixed connection at the inside wall of sealed shell 1, so set up, the dismouting of the later stage cooling tube 4 of being convenient for, breather pipe 3, connecting piece 5 and fixed pipe 6.

Specifically, the ventilating pipe 3 and the cooling pipe 4 are horizontally arranged in a snake shape, so that the surface area of the cooling pipe 4 in the unit volume can be increased, the vaporized GBL can be fully contacted with the cooling pipe 4, the condensation effect is greatly improved, and the cooling time is shortened.

The working principle is as follows: when the device is used, the air inlet pipe 7 is connected with a dehydrogenation reactor and a heat exchanger through management, the air outlet pipe 10 is connected with a hydrogen collecting device through a pipeline, the liquid conveying pipe 9 is connected with a GBL crude product storage tank through a pipeline, raw materials for synthesizing GBL pass through a vaporizer and a superheater and then enter the dehydrogenation reactor through the pipeline for reaction, the reaction product comprises GBL, hydrogen and other incompletely reacted byproducts, the vaporized reaction product enters the inside of the vent pipe 3 through the air inlet pipe 7 and flows along the cooling pipe 4, the vaporized reaction product is fully contacted with the cooling pipe 4 and is changed from gas phase to liquid phase, the hydrogen can be separated from the condensed liquid phase, the GBL liquid which is changed into the liquid phase flows into the inside of the GBL crude product storage tank through the liquid collecting pipe 8 and the liquid conveying pipe 9 successively, the hydrogen continues to flow along the vent pipe 3, and the GBL in the hydrogen is completely, inside final hydrogen got into hydrogen collection device by outlet duct 10, the hydrogen of retrieving carries out follow-up cyclic utilization, accomplish GBL and hydrogen's separation and collection simultaneously at this in-process, improve GBL's yield and the purity of hydrogen, be convenient for later stage product rectification and hydrogen recycle, and cooling tube 4 and breather pipe 3 are connected fixedly by linking up portion 2, consequently, when the later stage clearance, can pull down cooling tube 4 and breather pipe 3 convenience at linking up portion 2, regularly clear up, prevent that remaining product from long-term adhesion in cooling tube 4 inner walls, reduce its cooling effect, block up the pipeline.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A condenser is used in GBL production which characterized in that: comprises a sealing shell (1), the sealing shell (1) is of a flat hollow cuboid structure, the two sides of the inner wall of the sealing shell (1) are provided with a joint part (2) through a connecting piece (5), a cooling pipe (4) and a vent pipe (3) are connected between the joint part (2), the cooling pipe (4) is arranged inside the vent pipe (3), the input end and the output end of the cooling pipe (4) respectively penetrate through the sealing shell (1), the lower surface of the vent pipe (3) close to the input end of the cooling pipe (4) is provided with an air inlet pipe (7), the air inlet pipe (7) is communicated with the vent pipe (3), the air inlet pipe (7) penetrates through the sealing shell (1), the upper surface of the vent pipe (3) close to the output end of the cooling pipe (4) is provided with an air outlet pipe (10), the air outlet pipe (10) is communicated with the vent pipe, and the air outlet pipe (10) penetrates through the sealing shell (1), the lower surface of the vent pipe (3) is provided with a liquid collecting pipe (8), the liquid collecting pipe (8) is communicated with the vent pipe (3), the bottom of the liquid collecting pipe (8) is connected with a liquid conveying pipe (9), and the liquid conveying pipe (9) penetrates through the sealing shell (1).

2. The condenser for GBL production as claimed in claim 1, wherein: the joint part (2) comprises an outer connecting pipe (201), an inner connecting pipe (203) is arranged in the outer connecting pipe (201) through a connecting block (202), and the outer connecting pipe (201) and the inner connecting pipe (203) are respectively connected with the ventilating pipe (3) and the cooling pipe (4).

3. The condenser for GBL production as claimed in claim 1, wherein: the cooling pipe (4) penetrates through the position of the sealing shell (1) and is provided with a fixed pipe (6), and the fixed pipe (6) is sleeved on the outer side of the cooling pipe (4) and is connected with the vent pipe (3).

4. The condenser for GBL production as claimed in claim 1, wherein: both sides and the top cover of the sealing shell (1) can be detached.

5. The condenser for GBL production as claimed in claim 1, wherein: the infusion tube (9) is inclined, and the output end of the infusion tube penetrates through the bottom of the sealing shell (1).

6. The condenser for GBL production as claimed in claim 3, wherein: the connecting piece (5) with the fixed pipe (6) are fixedly connected on the inner side wall of the sealing shell (1) through screws.

7. The condenser for GBL production as claimed in claim 1, wherein: the ventilating pipe (3) and the cooling pipe (4) are horizontally arranged in a snake shape.

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