CN210965046U

CN210965046U - Tubular integrated reactor

Info

Publication number: CN210965046U
Application number: CN201921012128.4U
Authority: CN
Inventors: 鲁德祥; 鲁盈
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-25
Filing date: 2019-07-02
Publication date: 2020-07-10
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a tubular integration reactor. The device comprises a barrel, a feed inlet arranged at the upper part of the outer wall of the barrel and a tubular component arranged in the barrel; the tube assembly comprises a tube plate, a corrugated tube, a first catalyst and fins, wherein the two transverse ends of the tube plate are fixed on the inner wall of the cylinder body, the tube plate comprises a first tube plate and a second tube plate, the corrugated tube is vertically arranged, and the upper end and the lower end of the corrugated tube are fixed on the first tube plate and the second tube plate; the first catalyst is positioned in the corrugated pipe, and the fins are arranged on the outer wall of the corrugated pipe; the lower end of the cylinder body is provided with a discharge hole, the cylinder body is fixed on the skirt, and the lower end of the skirt is provided with a bottom plate. The utility model has the advantages of can change the pressure in the bellows, reduce and open the temperature of living, increase catalyst adsorption performance, reinforcing reaction effect.

Description

Tubular integrated reactor

Technical Field

The utility model relates to a chemical industry equipment reactor field, more specifically says that it is tubular integration reactor.

Background

In the exothermic reaction process, there are various reactors, and the operating principles of the reactors are different in order to ensure the reaction conditions and the performance of different catalysts.

Existing reactors include fixed bed reactors, fluidized bed reactors and multi-tubular reactors; the fixed bed reactor has the following disadvantages in practical production: (1) the heat released cannot be well removed from the reactor to generate temperature runaway; (2) seriously affecting the stability of the reaction product; (3) the service life of the catalyst is seriously influenced, so that the regeneration period of the catalyst is shortened. The fluidized bed reactor has the following disadvantages in practical production: (1) catalyst is entrained in the reaction product; (2) the catalyst carried in the reaction product needs to be separated, so that the investment cost of equipment is increased; (3) the catalyst in the fluidized bed is in a moving state, the catalyst is broken due to the movement, the powder catalyst is not easy to be separated from reaction products, and the catalyst loss is large. The multitubular reactor has the following disadvantages in practical production: (1) the common pipe is adopted, and because of strong exothermic reaction, the temperature difference between the pipe side and the shell side is too large, and only materials with large specific heat capacity can be used for removing heat; (2) the heat cannot meet the raw material heating requirement of continuous feeding after being removed; (3) the removed heat is less, the bed layer can be over-heated, and the effective use of the catalyst is influenced; (4) the quantity of the heat exchange pipes is increased, so that a large amount of heat can be removed, the effective use of the catalyst is not influenced, and the equipment cost is greatly increased by adding the heat exchange pipes; (5) a gas distributor is arranged at the feeding position to influence the complete regeneration of the catalyst; thus, none of the three reactors currently available individually and completely satisfy the relatively efficient use of catalyst in the reactor.

The prior application number is 201620716546.1, and the patent name is 'combined type constant temperature reactor' which comprises a fixed bed, a fin constant temperature tube, a gas distributor, a mixed gas near-air tube and a mixed gas outlet tube; the device is more, the cost is higher, and the heat loss is larger when the air flow passes through the circulating pipe device; can not meet the requirements of a plurality of different raw materials in the same reactor on different reaction conditions. According to the knowledge of the inventor, the pressure in the reaction tube in the reactor in the prior art is consistent, which is not beneficial to reducing the starting temperature of the reaction; the prior art has the disadvantages of non-centralized temperature, unfavorable reduction of activation energy of reaction, unfavorable isomerization of reaction products, complex operation and unfavorable loading and unloading of catalysts.

Disclosure of Invention

The utility model aims at providing a tubular integration reactor, the bellows is regular bellows or irregular bellows, the ripple circle bore on the bellows is not totally the same or all different, therefore everywhere pressure is inequality in the bellows, can change the pressure in the bellows, reduce and open the temperature alive, increase catalyst adsorption performance, reinforcing reaction effect; the horn-shaped trapezoid pipe has concentrated reaction temperature, high reaction temperature, large pressure drop (resistance) and convenient aromatization of products, and can reduce the activation energy of aromatization of reaction products; the inverted-trumpet-shaped trapezoid pipe can enable the reaction temperature to be concentrated at the bottom of the trapezoid pipe, ensure the temperature difference of an inlet and an outlet, facilitate the loading and unloading of the catalyst and reduce the driving resistance.

In order to realize the purpose, the technical scheme of the utility model is that: the tubular integrated reactor is characterized in that: comprises a cylinder body, a feed inlet arranged at the upper part of the outer wall of the cylinder body and a tubular component arranged in the cylinder body; the tube assembly comprises a tube plate, a corrugated tube or a trapezoid tube, a first catalyst and fins, the two transverse ends of the tube plate are fixed on the inner wall of the cylinder body, the tube plate comprises a first tube plate and a second tube plate, the corrugated tube or the trapezoid tube is vertically arranged, the upper end of the corrugated tube or the trapezoid tube is fixed on the first tube plate, and the lower end of the corrugated tube or the trapezoid tube is fixed on the second tube plate; the first catalyst is positioned in the corrugated pipe or the trapezoidal pipe, and the fins are arranged on the outer wall of the corrugated pipe or the trapezoidal pipe;

the lower end of the cylinder body is provided with a discharge hole, the cylinder body is fixed on the skirt, and the lower end of the skirt is provided with a bottom plate.

In the above technical solution, there are a plurality of the corrugated pipes or the trapezoid pipes, and the plurality of the corrugated pipes or the trapezoid pipes are arranged at intervals.

In the technical scheme, the tube assembly further comprises a gas riser, the lower end of the gas riser is positioned between the first tube plate and the second tube plate, and the upper end of the gas riser extends out of the first tube plate; the riser is arranged between two adjacent corrugated pipes or the trapezoid pipes; the distance between the lower end of the gas lift pipe and the second tube plate is adjustable.

In the technical scheme, one or more draft tubes are arranged; the upper end of the riser is provided with an air blocking cap which is in a herringbone shape, a square shape or a round shape.

In the above technical scheme, the trapezoid pipe is an isosceles trapezoid pipe and/or a right-angle trapezoid pipe.

In the above technical scheme, the trapezoid pipe is in an inverted horn shape with a large upper caliber and a small lower caliber or in a horn shape with a small upper caliber and a large lower caliber.

In the technical scheme, a fixed bed assembly is arranged in the barrel and comprises a gas distributor and a fixed bed, the fixed bed comprises an upper pressure plate, a support plate and a second catalyst, the upper pressure plate is positioned above the support plate, the two transverse ends of the upper pressure plate are fixed on the inner wall of the barrel, the two transverse ends of the support plate are fixed on the inner wall of the barrel, and the second catalyst is positioned in an area defined by the upper pressure plate, the support plate and the inner wall of the barrel; the gas distributor is located above the fixed bed.

In the technical scheme, one or more tubular components are arranged; one or more fixed bed components are arranged, and one or more feed inlets are arranged; the feed inlet is positioned above the fixed bed assembly or between the first tube plate and the second tube plate.

In the technical scheme, the manhole is arranged on the outer wall of the cylinder body, one or more manholes are arranged on the manhole, and the manhole is arranged above the pipe type component or above the fixed bed component or above the pipe type component and between the pipe type component and the fixed bed component.

In the technical scheme, the tube assembly and the fixed bed assembly are combined in four ways, and the combination of the tube assembly and the fixed bed assembly comprises that the fixed bed assembly is positioned below the tube assembly; the fixed bed assembly is positioned above the tube assembly; the tubular component is arranged between the two fixed bed components which are arranged at intervals; the fixed bed component is arranged between the two tubular components which are arranged at intervals.

The utility model has the advantages of as follows:

(1) the corrugated pipe is a regular corrugated pipe or an irregular corrugated pipe, and the calibers of the corrugated rings on the corrugated pipe are not completely the same or all different, so that the pressure intensity at each position in the corrugated pipe is different, the pressure intensity in the corrugated pipe can be changed, the activation temperature is reduced, the adsorption performance of the catalyst is improved, and the reaction effect is enhanced;

(2) the trumpet-shaped trapezoid pipe has concentrated reaction temperature, high reaction temperature, large pressure drop (resistance) and convenient aromatization of products, and can reduce the activation energy of aromatization of reaction products; the inverted-horn-shaped trapezoid pipe can enable the reaction temperature to be concentrated at the bottom of the trapezoid pipe, ensure the temperature difference of an inlet and an outlet, facilitate the loading and unloading of the catalyst and reduce the driving resistance;

(3) the air lift pipe is arranged in the cylinder body, so that a circulating pipe device is reduced, and heat loss is reduced; the tube body is internally provided with the riser, the tube layer and the shell layer are connected into a whole, and the gas is uniformly distributed, so that a gas distributor and an expansion joint device are saved; the upper end of the gas rising pipe is provided with a gas blocking cap which reduces the back flushing of gas during rising and has the function of promoting the redistribution of the gas;

(4) the requirements of a plurality of different raw materials in the same reactor on different reaction conditions are met; the function is diversified, the cost is saved.

Drawings

Fig. 1 is a schematic view of the structure of the built-in irregular corrugated pipe of the present invention.

Fig. 2 is a schematic structural view of the irregular corrugated tube and the fins in fig. 1.

Fig. 3 is a schematic diagram of the built-in irregular bellows structure of the present invention.

Fig. 4 is a schematic view of the structure of the built-in regular corrugated pipe of the present invention.

Fig. 5 is a schematic structural view of the regular bellows and the fins in fig. 4.

Fig. 6 is a schematic structural view of the present invention with two tube assemblies.

Fig. 7 is a schematic structural view of the present invention with a tube assembly and a fixed bed assembly.

Fig. 8 is a schematic structural view of a fixed bed assembly of the present invention disposed between two spaced tubular assemblies.

Fig. 9 is a schematic structural view of the present invention, in which a tube assembly is disposed between two fixed bed assemblies disposed at an interval.

Fig. 10 is a schematic structural view of the built-in inverted-trumpet-shaped trapezoid of the present invention.

FIG. 11 is a schematic view of the connection structure of the inverted-flared trapezoid and the fins in FIG. 10.

Fig. 12 is a schematic structural view of the built-in trumpet-shaped trapezoid tube of the present invention.

Fig. 13 is a schematic view showing a connection structure of the trumpet-shaped trapezoidal tube and the fin of fig. 12.

Fig. 14 is a schematic structural diagram of the present invention with two pipe assemblies having an inverted-trumpet-shaped trapezoid pipe built therein.

Fig. 15 is a schematic structural view of the present invention with two tube assemblies having a flared trapezoid tube built therein.

Fig. 16 is a schematic structural view of the present invention, in which a tube assembly with an inverted-trumpet-shaped trapezoid tube and a fixed bed assembly are disposed.

Fig. 17 is a schematic structural view of the fixed bed assembly disposed between two pipe assemblies with inverted-trumpet-shaped trapezoid pipes disposed at intervals.

Fig. 18 is a schematic structural diagram of a pipe assembly with an inverted-trumpet-shaped trapezoid pipe between two fixed bed assemblies arranged at intervals in the utility model.

In the figure, 1-feed inlet, 2-tube assembly, 2.1-tube plate, 2.11-first tube plate, 2.12-second tube plate, 2.2-riser, 2.21-gas-blocking cap, 2.3-corrugated tube, 2.4-first catalyst, 2.5-fin, 2.6-trapezoidal tube, 3-manhole, 4-cylinder, 5-discharge outlet, 6-skirt, 7-bottom plate, 8-fixed bed assembly, 8.1-gas distributor, 8.2-fixed bed, 8.21-upper pressure plate, 8.22-support plate and 8.23-second catalyst.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.

With reference to the accompanying drawings: the tubular integrated reactor comprises a barrel 4, a feed inlet 1 arranged at the upper part of the outer wall of the barrel 4 and a tubular component 2 arranged in the barrel 4; the tube assembly 2 comprises a tube plate 2.1, a corrugated tube 2.3 or a trapezoid tube 2.6, a first catalyst 2.4 and fins 2.5, the two transverse ends of the tube plate 2.1 are fixed on the inner wall of the cylinder 4, the tube plate 2.1 comprises a first tube plate 2.11 and a second tube plate 2.12, the corrugated tube 2.3 or the trapezoid tube 2.6 is vertically arranged, the upper end of the corrugated tube 2.3 or the trapezoid tube 2.6 is fixed on the first tube plate 2.11, and the lower end of the corrugated tube 2.3 or the trapezoid tube 2.6 is fixed on the second tube plate 2.12; the first catalyst 2.4 is positioned in the corrugated pipe 2.3 or the trapezoid pipe 2.6, and the fins 2.5 are arranged on the outer wall of the corrugated pipe 2.3 or the trapezoid pipe 2.6;

a discharge hole 5 is arranged at the lower end of the cylinder body 4, the cylinder body 4 is fixed on the skirt support 6, and the lower end of the skirt support 6 is provided with a bottom plate 7.

The number of the corrugated pipes 2.3 or the trapezoid pipes 2.6 is multiple, and the plurality of the corrugated pipes 2.3 or the trapezoid pipes 2.6 are arranged at intervals (as shown in fig. 1, 3, 4, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18).

The corrugated pipes 2.3 or the trapezoidal pipes 2.6 have the same or different structures; the tube assembly 2 further comprises a gas riser 2.2, the lower end of the gas riser 2.2 is positioned between the first tube plate 2.11 and the second tube plate 2.12, and the upper end of the gas riser extends out of the first tube plate 2.11; the gas lift pipe 2.2 is arranged between two adjacent corrugated pipes 2.3 or the trapezoid pipes 2.6; the distance between the lower end of the riser 2.2 and the second tube plate 2.12 is adjustable.

The gas lift pipe 2.2 is a common pipe or a finned pipe; one or more gas risers 2.2 are provided; the upper end of the gas lift tube 2.2 is provided with a gas baffle cap 2.21, and the gas baffle cap 2.21 is in a herringbone shape or a square shape or a round shape (as shown in figures 6, 7, 8, 9, 16 and 18).

The trapezoid tubes 2.6 are isosceles trapezoid tubes and/or right-angle trapezoid tubes.

The trapezoid pipe 2.6 is in a shape of an inverted horn with a large upper caliber and a small lower caliber or in a shape of a horn with a small upper caliber and a large lower caliber; the number of the fins 2.5 arranged on the outer wall of the large-caliber trapezoidal pipe 2.3 is less than that of the fins 2.5 arranged on the outer wall of the small-caliber trapezoidal pipe 2.3; the length of the fins 2.5 provided on the outer wall of the large-diameter trapezoidal tube 2.3 is shorter than the length of the fins 2.5 provided on the outer wall of the small-diameter trapezoidal tube 2.3 (see fig. 10, 11, 12, 13, 14, 15, 16, 17, and 18).

The corrugated pipes 2.3 are irregular corrugated pipes or regular corrugated pipes, and the corrugated ring calibers on the corrugated pipes 2.3 are not completely the same or all different (as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9).

Fins 2.5 are arranged on the outer wall of the corrugated pipe 2.3, and the number of the fins 2.5 arranged on the outer wall of the large-caliber corrugated ring is less than that of the fins 2.5 arranged on the outer wall of the small-caliber corrugated ring; the length of the fin 2.5 arranged on the outer wall of the large-caliber corrugated ring is shorter than that of the fin 2.5 arranged on the outer wall of the small-caliber corrugated ring, as shown in figures 1, 2, 3, 4, 5, 6, 7, 8 and 9).

A fixed bed component 8 is arranged in the barrel 4, the fixed bed component 8 comprises a gas distributor 8.1 and a fixed bed 8.2, the fixed bed 8.2 comprises an upper pressure plate 8.21, a support plate 8.22 and a second catalyst 8.23, the upper pressure plate 8.21 is positioned above the support plate 8.22, the two transverse ends of the upper pressure plate 8.21 are fixed on the inner wall of the barrel 4, the two transverse ends of the support plate 8.22 are fixed on the inner wall of the barrel 4, and the second catalyst 8.23 is positioned in an area surrounded by the upper pressure plate 8.21, the support plate 8.22 and the inner wall of the barrel 4; the gas distributor 8.1 is located above the fixed bed 8.2.

One or more of the tubular components 2; one or more fixed bed components 8 are arranged, and one or more feed inlets 1 are arranged; the feed opening is located above the fixed bed assembly 8 or between the first tube sheet 2.11 and the second tube sheet 2.12.

There is manhole 3 to locate on the barrel 4 outer wall, and manhole 3 has one or more, manhole 3 locates tubular component 2 top or fixed bed subassembly 8 or tubular component 2 top, and locate tubular component 2 with between the fixed bed subassembly 8.

The tube assembly 2 and the fixed bed assembly 8 are combined in four ways, and the tube assembly 2 and the fixed bed assembly 8 are combined in a way that the fixed bed assembly 8 is positioned below the tube assembly 2; the fixed bed assembly 8 is located above the tubular assembly 2; the tubular component 2 is arranged between two fixed bed components 8 which are arranged at intervals; the fixed bed component 8 is arranged between the two pipe components 2 which are arranged at intervals (as shown in figures 7, 8, 9, 16, 17 and 18).

Other parts not described belong to the prior art.

Claims

1. The tubular integrated reactor is characterized in that: comprises a cylinder body (4), a feed inlet (1) arranged at the upper part of the outer wall of the cylinder body (4), and a tubular component (2) arranged in the cylinder body (4); the tube assembly (2) comprises a tube plate (2.1), a corrugated tube (2.3) or a trapezoid tube (2.6), a first catalyst (2.4) and fins (2.5), the two transverse ends of the tube plate (2.1) are fixed on the inner wall of the cylinder body (4), the tube plate (2.1) comprises a first tube plate (2.11) and a second tube plate (2.12), the corrugated tube (2.3) or the trapezoid tube (2.6) is vertically arranged, the upper end of the corrugated tube (2.3) or the trapezoid tube (2.6) is fixed on the first tube plate (2.11), and the lower end of the corrugated tube (2.3) or the trapezoid tube (2.6) is fixed on the second tube plate (2.12); the first catalyst (2.4) is positioned in the corrugated pipe (2.3) or the trapezoid pipe (2.6), and the fins (2.5) are arranged on the outer wall of the corrugated pipe (2.3) or the trapezoid pipe (2.6);

a discharge hole (5) is arranged at the lower end of the cylinder body (4), the cylinder body (4) is fixed on the skirt support (6), and a bottom plate (7) is arranged at the lower end of the skirt support (6).

2. The tube-integrated reactor according to claim 1, characterized in that: the corrugated pipes (2.3) or the trapezoid pipes (2.6) are provided with a plurality of corrugated pipes (2.3) or trapezoid pipes (2.6) which are arranged at intervals.

3. The tube-integrated reactor according to claim 2, characterized in that: the tube assembly (2) further comprises a gas riser (2.2), the lower end of the gas riser (2.2) is positioned between the first tube plate (2.11) and the second tube plate (2.12), and the upper end of the gas riser extends out of the first tube plate (2.11); the gas lift pipe (2.2) is arranged between two adjacent corrugated pipes (2.3) or the trapezoid pipe (2.6); the distance between the lower end of the gas lift pipe (2.2) and the second tube plate (2.12) is adjustable.

4. The tube-integrated reactor according to claim 3, characterized in that: one or more air lift pipes (2.2); the upper end of the riser (2.2) is provided with an air blocking cap (2.21), and the air blocking cap (2.21) is in a herringbone shape, a square shape or a round shape.

5. The tube-integrated reactor according to claim 4, characterized in that: the trapezoid pipes (2.6) are isosceles trapezoid pipes and/or right-angle trapezoid pipes.

6. The tube-integrated reactor according to claim 5, characterized in that: the trapezoid pipe (2.6) is in a shape of an inverted horn with a large upper caliber and a small lower caliber or a horn with a small upper caliber and a large lower caliber.

7. The tube-integrated reactor according to claim 6, characterized in that: a fixed bed component (8) is arranged in the barrel (4), the fixed bed component (8) comprises a gas distributor (8.1) and a fixed bed (8.2), the fixed bed (8.2) comprises an upper pressure plate (8.21), a supporting plate (8.22) and a second catalyst (8.23), the upper pressure plate (8.21) is positioned above the supporting plate (8.22), the two transverse ends of the upper pressure plate (8.21) are fixed on the inner wall of the barrel (4), the two transverse ends of the supporting plate (8.22) are fixed on the inner wall of the barrel (4), and the second catalyst (8.23) is positioned in an area defined by the upper pressure plate (8.21), the supporting plate (8.22) and the inner wall of the barrel (4); the gas distributor (8.1) is located above the fixed bed (8.2).

8. The tube-integrated reactor according to claim 7, wherein: one or more of the tubular components (2); one or more fixed bed components (8) are arranged, and one or more feed inlets (1) are arranged; the feed inlet (1) is positioned above the fixed bed assembly (8) or between the first tube plate (2.11) and the second tube plate (2.12).

9. The tube-integrated reactor according to claim 8, wherein: there is manhole (3) to locate on barrel (4) outer wall, and manhole (3) have one or more, manhole (3) are located tubular component (2) top or fixed bed subassembly (8) or tubular component (2) top, and locate tubular component (2) with between the fixed bed subassembly (8).

10. The tube-integrated reactor according to claim 9, characterized in that: the tube assembly (2) and the fixed bed assembly (8) have four combination modes, and the combination mode of the tube assembly (2) and the fixed bed assembly (8) comprises that the fixed bed assembly (8) is positioned below the tube assembly (2); the fixed bed component (8) is positioned above the tubular component (2); the tubular component (2) is arranged between the two fixed bed components (8) which are arranged at intervals; the fixed bed component (8) is arranged between the two pipe components (2) which are arranged at intervals.