CN213102217U

CN213102217U - Corrugated double-layer tubular reactor

Info

Publication number: CN213102217U
Application number: CN202021401138.XU
Authority: CN
Inventors: 陈卫文; 郑玲; 陈彩虹; 史华威; 周琪
Original assignee: Hubei Haihui Chemical Technology Co ltd
Current assignee: Hubei Haihui Chemical Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-04
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a corrugated double-layer tubular reactor, which comprises a corrugated reaction tube, a first port, a second port and a heater; the corrugated reaction tube comprises an inner tube section and an outer tube section, the inner tube section is spirally and circularly arranged outside the heater, the outer tube section is spirally and circularly arranged outside the inner tube section, and the inner tube section and the outer tube section are alternately arranged along the axis direction; one end of the inner pipe section is communicated with the first port, the other end of the inner pipe section is communicated with the outer pipe section, and the other end of the outer pipe section is communicated with the second port. The utility model discloses an introduce inside and outside ripple reaction tube that is the ripple column structure to with ripple reaction tube with inside and outside alternative mode of arranging, it is outside that the heater is located to the heliciform ring, heat remain stable even state always when making the reaction raw materials including the pipeline section react, and the flow distance of reactant is longer on the same axis length, and then makes the reaction more abundant.

Description

Corrugated double-layer tubular reactor

Technical Field

The utility model relates to an organic synthesizer, in particular to a corrugated double-layer tubular reactor.

Background

The tubular reactor is a continuous operation reactor which is tubular and has large length-diameter ratio in chemical industry, has small back mixing, thus having high volumetric efficiency, and is particularly suitable for occasions requiring higher conversion rate or having series side reactions, and the tubular reactor can realize segmented temperature control. At present, the tubular reactor mostly adopts a single tube or multi-tube parallel structure form, and utilizes the plug flow when reactants are injected into the tubular reactor to carry out flow reaction. The existing tubular reactor usually needs to be very long in pipeline, occupies relatively large space, and simultaneously has the problems of uneven reaction heat and insufficient reaction. Therefore, it is necessary to provide a new tubular reactor for solving the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrugated double-deck tubular reactor for tubular reactor accounts for the space great among the solution prior art, during the reaction uneven, the insufficient problem of reaction of heat.

In order to solve the technical problem, the utility model provides a corrugated double-layer tubular reactor, which comprises a corrugated reaction tube, a first port, a second port and a heater; the corrugated reaction tube comprises an inner tube section and an outer tube section, wherein the inner tube section is spirally and circularly arranged outside the heater, the outer tube section is spirally and circularly arranged outside the inner tube section, and the inner tube section and the outer tube section are alternately arranged along the axis direction; one end of the inner pipe section is communicated with the first port, the other end of the inner pipe section is communicated with the outer pipe section, and the other end of the outer pipe section is communicated with the second port.

The inner pipe section and the outer pipe section have the same structure and size specification, and the outer surfaces and the inner wall surfaces of the inner pipe section and the outer pipe section are both of annular and uniformly distributed corrugated structures.

The outer surface wave stripe structure of the inner pipe section is overlapped with the inner surface wave stripe structure after translating along the direction vertical to the axis.

The first port and the second port have the same structure, the first port comprises a first locking nut and a first interface column, and the first locking nut is arranged at one end, close to the inner pipe section, of the first interface column in a surrounding mode and is in threaded connection with the first interface column; one end of the first interface column is fixedly communicated with the inner pipe section, and the other end of the first interface column is connected with an external conduit.

The second port comprises a second locking nut and a second interface column, and the second locking nut is annularly arranged at one end, close to the outer pipe section, of the second interface column and is in threaded connection with the second interface column; one end of the second interface column is fixedly communicated with the outer pipe section, and the other end of the second interface column is connected with an external conduit.

Preferably, the corrugated reaction tube is made of stainless steel.

Preferably, the heater is a resistance heater.

The utility model has the advantages that: be different from prior art's condition, the utility model provides a ripple form double-deck tubular reactor is ripple tubular reactor through introducing inside and outside ripple tubular structure's ripple reaction tube to with ripple reaction tube with inside and outside alternative mode of arranging, it is the heliciform ring and locates the heater outside, heat remain stable even state always when making reaction raw materials including the pipeline section react, and the flow path of reactant is longer on the same axis length, and then makes the reaction more abundant.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a middle corrugated double-walled tubular reactor according to the present invention;

FIG. 2 is a side view of FIG. 1 taken along direction A;

FIG. 3 is a cross-sectional view of a corrugated reaction tube in an embodiment of the corrugated double-tube reactor of the present invention;

in the figure: 1: a corrugated reaction tube; 11: an inner tube section; 12: an outer tube section; 13: a corrugated structure; 2: a first port; 21: a first lock nut; 22: a first interface post; 3: a second port; 31: a second lock nut; 32: a second interface column; 4: a heater.

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 all belong to the protection scope of the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an embodiment of a corrugated double-layered tubular reactor according to the present invention, and fig. 2 is a side view of fig. 1 along direction a. The utility model discloses a middle corrugated double-layer tubular reactor, which comprises a corrugated reaction tube 1, a first port 2, a second port 3 and a heater 4; the corrugated reaction tube 1 comprises an inner tube section 11 and an outer tube section 12, wherein the inner tube section 11 is spirally and annularly arranged outside the heater 4, the outer tube section 12 is spirally and annularly arranged outside the inner tube section 11, and the inner tube section 11 and the outer tube section 12 are alternately arranged along the axial direction; one end of the inner pipe section 11 is communicated with the first port 22, the other end of the inner pipe section 11 is communicated with the outer pipe section 12, and the other end of the outer pipe section 12 is communicated with the second port 3. The device is with corrugated reaction tube 1 with inside and outside alternating arrangement, and the heliciform ring is located heater 4 outsidely, and the flow path of reactant is longer on the same axis length, and then makes the reaction more abundant. The specific components of the corrugated double-walled tubular reactor are explained below.

Referring to fig. 3, fig. 3 is a cross-sectional view of a corrugated reaction tube in an embodiment of the corrugated double-layer tubular reactor of the present invention. The inner pipe section 11 and the outer pipe section 12 have the same structure and size specification, and the outer surfaces and the inner wall surfaces of the inner pipe section and the outer pipe section are both of corrugated structures 13 which are uniformly distributed in an annular mode, so that compared with a traditional linear pipe body structure; in this embodiment, the inner and outer corrugated structures 13 are arranged in such a way that the outer corrugated structure of the inner pipe section is overlapped with the inner corrugated structure thereof after being translated along the direction perpendicular to the axis, which is beneficial to the flowing process of the reaction raw material in the pipe, the two segment regions of the inner pipe section 11 and the outer pipe section 12 are heated more uniformly, the reaction temperature is kept in a more stable state, and the reaction is more beneficial to the full proceeding of the reaction.

Specifically, the first port 2 and the second port 3 have the same structure, the first port 2 comprises a first lock nut 21 and a first interface column 22, and the first lock nut 21 is annularly arranged at one end of the first interface column 22 close to the inner pipe section 11 and is in threaded connection with the first interface column 22; one end of the first interface column 22 is fixedly communicated with the inner pipe section 11, and the other end is connected with the external conduit, when the external conduit is sleeved on the first interface column 22, the first locking nut 21 is rotated to lock the external conduit and the first interface column 22, so that the first port 2 is hermetically connected with the external conduit. Similarly, the second port 3 comprises a second lock nut 31 and a second interface column 32, the second lock nut 31 is annularly arranged at one end of the second interface column 32 close to the outer pipe section 12 and is in threaded connection with the second interface column 32; one end of the second interface column 32 is fixedly communicated with the outer tube section 12, and the other end is connected with an external conduit, and the connection mode is the same as that of the first port 2, which is not described herein again.

In the present embodiment, the corrugated reaction tube 1 is preferably made of stainless steel, and the heater 4 is preferably a resistance heater; in other embodiments, the selection may be performed according to actual situations, and is not limited herein.

Further, the operation of the corrugated double-walled tubular reactor will be described in detail based on the structural description thereof. Taking the first port 2 for liquid inlet and the second port 3 for liquid outlet as an example, firstly, the external conduit is respectively communicated with the first interface column 22 and the second interface column 32, and the first locking nut 21 and the second locking nut 22 are screwed to lock the two ends; then, the heater 4 is started to heat by switching on the power supply, when the preset temperature condition is reached, the reaction raw material is led into the inner pipe section 11 from the first port 2, and is led out from the second port 3 after the reaction of the outer pipe section 12, thereby completing the tubular reaction process. In the tubular reaction process, the inner tube section 11 is closer to the heater 4, so that the temperature of the inner cavity of the inner tube section 11 is slightly higher than that of the outer tube section 12, and reasonable arrangement of liquid inlet and outlet directions can be carried out according to actual reaction temperature requirements. On one hand, the device adopts an inner and outer corrugated structure and an arrangement mode of spirally surrounding an inner pipe and an outer pipe, so that the thread of flowing reactants is greatly prolonged, the reaction time is prolonged, and the reaction is more sufficient; on the other hand, the inner pipe and the outer pipe are spirally wound and the inner pipe and the outer pipe are alternately arranged, compared with a single-layer spiral structure, the inner pipe section 11 close to the inner part is easier to maintain a relatively stable reaction temperature under the heat winding of the outer pipe section 12, so that the reaction temperature of the inner pipe section 11 can be always maintained in a stable state, and the stability of the reaction is remarkably improved.

Be different from prior art's condition, the utility model provides a ripple form double-deck tubular reactor is ripple tubular reactor through introducing inside and outside ripple tubular structure's ripple reaction tube to with ripple reaction tube with inside and outside alternative mode of arranging, it is the heliciform ring and locates the heater outside, heat remain stable even state always when making reaction raw materials including the pipeline section react, and the flow path of reactant is longer on the same axis length, and then makes the reaction more abundant.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A corrugated double-layer tubular reactor is characterized by comprising a corrugated reaction tube, a first port, a second port and a heater;

the corrugated reaction tube comprises an inner tube section and an outer tube section, the inner tube section is spirally and circularly arranged outside the heater, the outer tube section is spirally and circularly arranged outside the inner tube section, and the inner tube section and the outer tube section are alternately arranged along the axis direction;

one end of the inner pipe section is communicated with the first port, the other end of the inner pipe section is communicated with the outer pipe section, and the other end of the outer pipe section is communicated with the second port.

2. The corrugated double-walled tubular reactor of claim 1, wherein the inner and outer tubular sections have the same structural and dimensional specifications and both have an annular uniformly distributed corrugated structure on the outer and inner wall surfaces.

3. The corrugated double-wall tubular reactor of claim 2, wherein the inner tubular section has an outer surface acoustic wave corrugated structure that is substantially coincident with an inner surface acoustic wave corrugated structure of the inner tubular section after translation in a direction perpendicular to the axis.

4. The corrugated double-walled tubular reactor of claim 1, wherein the first port and the second port have the same structure, the first port comprises a first lock nut and a first interface column, and the first lock nut is annularly arranged at one end of the first interface column close to the inner pipe section and is in threaded connection with the first interface column;

one end of the first interface column is fixedly communicated with the inner pipe section, and the other end of the first interface column is connected with an external conduit.

5. The corrugated double-walled tubular reactor of claim 4, wherein the second port comprises a second lock nut and a second port post, the second lock nut being disposed around an end of the second port post adjacent to the outer tubular section and being in threaded engagement with the second port post;

one end of the second interface column is fixedly communicated with the outer pipe section, and the other end of the second interface column is connected with an external conduit.

6. The corrugated double-walled tubular reactor of claim 1, wherein the corrugated reactor tube is stainless steel.

7. The corrugated double-walled tubular reactor of claim 1 wherein the heater is a resistance heater.