CN108421502B - Spiral-disk type gas distributor and reactor using same - Google Patents
Spiral-disk type gas distributor and reactor using same Download PDFInfo
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- CN108421502B CN108421502B CN201810493684.1A CN201810493684A CN108421502B CN 108421502 B CN108421502 B CN 108421502B CN 201810493684 A CN201810493684 A CN 201810493684A CN 108421502 B CN108421502 B CN 108421502B
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- heat exchange
- disc type
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- 239000003054 catalyst Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims description 125
- 239000012495 reaction gas Substances 0.000 claims description 38
- 239000002826 coolant Substances 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims 4
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0285—Heating or cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
- B01J2208/00132—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00893—Feeding means for the reactants
- B01J2208/00911—Sparger-type feeding elements
Abstract
The invention discloses a spiral-disk-type gas distributor and a reactor applied by the same, wherein the spiral-disk-type gas distributor comprises a distributor body, the distributor body is composed of one or more closed square pipes distributed in a spiral mode, an inner cavity of the one or more closed square pipes forms a spiral-disk channel, a cavity is arranged in the middle of the distributor body, a plurality of closed total square pipes are arranged in the radial direction penetrating the distributor body and are respectively communicated with the spiral-disk channel and the cavity, one or more groups of parallel heat exchange pipe mounting hole groups are formed in the distributor body, each heat exchange pipe mounting hole group is composed of a plurality of mounting holes distributed in a spiral mode at equal intervals along the distributor body, and each mounting hole is provided with a heat exchange pipe which is respectively communicated with the spiral-disk channel. The gas distributor has the advantages of simple structure, uniform and reliable gas distribution, simple structure, convenient assembly, high space utilization rate, uniform gas distribution, convenient catalyst loading and unloading and high reaction efficiency.
Description
Technical Field
The invention relates to chemical equipment, in particular to a spiral disc type gas distributor and a reactor applied to the spiral disc type gas distributor.
Background
Heat exchange tubes are generally provided for reactors requiring heat exchange. The common heat exchange tubes are arranged in regular triangle, corner regular triangle, square and corner square, and the distribution forms are single and the heat exchange tubes are not distributed uniformly. For the reactor with the catalyst in the shell side, the synthesis gas is introduced into the tube side of the heat exchange tube, and the catalyst is filled in the shell side, so that the arrangement of the catalyst discharge holes is inconvenient, and the loading and unloading of the catalyst are difficult. In addition, the existing reactor adopts a total loop pipe and heat exchange pipe structure, the welding seams between the heat exchange pipes and the loop pipe are dense, the detection is difficult, the leakage is easy to occur, and the local high temperature is easy to form at the bent pipe.
Disclosure of Invention
The invention aims to solve the technical problem of providing a spiral disc type gas distributor and a reactor using the same aiming at the defects of the prior art.
The technical scheme adopted for solving the technical problems is as follows: a spiral plate type gas distributor comprises a distributor body, wherein the distributor body is composed of one or more closed square pipes distributed in a spiral mode, an inner cavity of the one or more closed square pipes forms a spiral plate channel, a cavity is arranged in the middle of the distributor body, a plurality of closed total square pipes penetrate through the distributor body and are radially arranged in the whole, the plurality of total square pipes are respectively communicated with the spiral plate channel and the cavity, gaps are reserved between the radially adjacent square pipes forming the spiral plate type gas distributor, accordingly, spiral gaps are formed on the spiral plate type gas distributor, one or more parallel heat exchange pipe installation hole groups are formed in the distributor body, each heat exchange pipe installation hole group is composed of a plurality of installation holes distributed in a spiral mode at equal intervals, and each heat exchange pipe is respectively communicated with the spiral plate channel.
The spiral disc type gas distributor has the advantages of simple structure, uniform and reliable gas distribution. The gas distributor consists of one or more closed square pipes which are arranged along a spiral shape, has small axial size and is beneficial to saving the space of the reactor. After the spiral type gas distributor is installed and used, the heat exchange tubes are distributed on the gas distributor in a spiral type at equal intervals, the distribution is uniform, the uniform inlet and outlet of a cooling medium and reaction gas into and out of a reaction area is facilitated, in addition, spiral gaps formed between radially adjacent square tubes forming the spiral type gas distributor can be used as a catalyst loading and unloading channel, and therefore the problem that the catalyst in the reactor is difficult to load and unload is effectively solved.
The reactor comprises a cylinder body, wherein the two ends of the cylinder body are respectively connected with an upper end socket and a lower end socket, a reaction zone is arranged in the cylinder body, a spiral disc type gas distributor is respectively arranged at the upper part and the lower part of the cylinder body, the two spiral disc type gas distributors are respectively positioned right above and right below the reaction zone, each spiral disc type gas distributor comprises a distributor body, the distributor body is composed of one or more closed square tubes which are spirally distributed, the inner cavity of the one or more closed square tubes forms a spiral disc channel, a cavity is arranged in the middle of the distributor body, a plurality of closed total square tubes are radially arranged through the distributor body and are respectively communicated with the spiral disc channel and the cavity, the spiral disc type gas distributor comprises a spiral disc type gas distributor, wherein a gap is formed between radially adjacent square tubes, so that the spiral disc type gas distributor is provided with a spiral gap, one or more groups of parallel heat exchange tube mounting hole groups are formed in the distributor body, each group of heat exchange tube mounting hole groups consists of a plurality of mounting holes which are distributed at equal intervals along the distributor body in a spiral manner, each mounting hole is provided with a vertically arranged heat exchange tube, the upper ends and the lower ends of the heat exchange tubes are respectively arranged in one mounting hole, the upper ends and the lower ends of the heat exchange tubes are respectively communicated with one spiral disc channel, the upper end socket is provided with a cooling medium outlet, a reaction gas inlet and a catalyst charging port, the lower end socket is provided with a cooling medium inlet and a reaction gas outlet, and the catalyst charging port is provided with a catalyst charging port, the spiral gaps on the upper spiral disc type gas distributor, the shell passes of the heat exchange tubes, the spiral gaps on the lower spiral disc type gas distributor and the reaction gas outlets are sequentially communicated, the cavity of the lower spiral disc type gas distributor is communicated with the cooling medium outlet, and the cavity of the upper spiral disc type gas distributor is communicated with the cooling medium inlet.
The reactor has the advantages of simple structure, convenient assembly, high space utilization rate, uniform gas distribution, convenient catalyst loading and unloading and high reaction efficiency.
When the reactor is used, the catalyst is filled into the shell passes of the heat exchange tubes through the catalyst charging port in advance, then the reaction gas is introduced into the reactor through the reaction gas inlet, enters the shell passes of the heat exchange tubes through the spiral gaps on the upper spiral disc type gas distributor, enters the reaction gas outlet through the spiral gaps on the lower spiral disc type gas distributor after reacting in the reaction zone, and is discharged out of the reactor. While the reaction is carried out, a cooling medium is introduced into the reactor through a cooling medium inlet, reaches the cavity of the lower spiral disc type gas distributor, is distributed into the spiral disc channels through a plurality of total square tubes, and enters the tube passes of a plurality of heat exchange tubes, passes through the reaction area from bottom to top in the plurality of heat exchange tubes, fully exchanges heat with the reaction gas, reaches the spiral disc channels of the upper spiral disc type gas distributor, and enters a cooling medium outlet after being collected by the plurality of total square tubes of the upper spiral disc type gas distributor, and is discharged out of the reactor.
In the reaction process, gas is uniformly distributed through the two spiral disc type gas distributors, the heat exchange tubes are distributed at equal intervals along the spiral type, the heat exchange tubes are uniformly distributed, cooling medium and reaction gas can uniformly enter and exit the reaction zone, the generation of a local high-temperature zone in the reaction zone is avoided, and the gas flows axially along the upright heat exchange tubes distributed at equal intervals along the spiral type in the reaction zone, so that the impact and the pressure drop are small. The spiral gap formed between the radial adjacent square tubes forming the spiral disc type gas distributor is used as a catalyst loading and unloading passage, so that the problem of difficult loading and unloading of the catalyst in the reactor can be effectively solved.
In practical application, the size of the gaps among the square tubes and the size of the intervals among the plurality of mounting holes can be adjusted according to the needs, so that the generation of a local high-temperature area is effectively avoided. One or more groups of parallel heat exchange tube mounting hole groups can be formed in the distributor body, so that one or more groups of parallel heat exchange tubes are mounted on the distributor body, the gas distribution efficiency is ensured, and the gas distribution effect is improved.
Preferably, a discharge hopper is arranged in the cylinder body, the discharge hopper is positioned under the lower spiral disc type gas distributor, and the discharge hopper is provided with a gas outlet hole communicated with the reaction gas outlet.
Preferably, an upper tube plate is installed between the upper end enclosure and the cylinder body, a lower tube plate is installed between the cylinder body and the lower end enclosure, two spiral gas distributors are respectively installed on the upper tube plate and the lower tube plate, a plurality of charging holes which are arranged along a spiral shape are formed in the upper tube plate, orthographic projections of the charging holes fall on spiral gaps of the spiral gas distributors installed on the upper tube plate, the charging holes are respectively communicated with spiral gaps on shell passes of the heat exchange tubes and the upper spiral gas distributors, a plurality of discharging holes which are arranged along the spiral shape are formed in the lower tube plate, orthographic projections of the discharging holes fall on the spiral gaps of the spiral gas distributors installed on the lower tube plate, and the discharging holes are respectively communicated with the spiral gaps on the shell passes of the heat exchange tubes and the lower spiral gas distributors. The design of the loading hole and the unloading hole is convenient for loading and unloading the catalyst and improves the space utilization rate of the reactor.
Preferably, a discharge hopper is arranged in the cylinder body, the discharge hopper is positioned under a spiral disc type gas distributor arranged on the lower tube plate, and the discharge hopper is provided with a gas outlet hole communicated with the reaction gas outlet.
Compared with the prior art, the invention has the following advantages:
1. the spiral disc type gas distributor disclosed by the invention has a simple structure, and is uniform and reliable in gas distribution. The gas distributor consists of one or more closed square pipes which are arranged along a spiral shape, has small axial size and is beneficial to saving the space of the reactor. After the spiral type gas distributor is installed and used, the heat exchange tubes are distributed on the gas distributor in a spiral type at equal intervals, the distribution is uniform, the uniform inlet and outlet of a cooling medium and reaction gas into and out of a reaction area is facilitated, in addition, spiral gaps formed between radially adjacent square tubes forming the spiral type gas distributor can be used as a catalyst loading and unloading channel, and therefore the problem that the catalyst in the reactor is difficult to load and unload is effectively solved.
2. The reactor disclosed by the invention adopts the spiral disc type gas distributor, and has the advantages of simple structure, convenience in assembly, high space utilization rate, uniform gas distribution, convenience in loading and unloading of the catalyst and high reaction efficiency. In the reaction process, gas is uniformly distributed through the two spiral disc type gas distributors, the heat exchange tubes are distributed at equal intervals along the spiral type, the heat exchange tubes are uniformly distributed, cooling medium and reaction gas can uniformly enter and exit the reaction zone, the generation of a local high-temperature zone in the reaction zone is avoided, and the gas flows axially along the upright heat exchange tubes distributed at equal intervals along the spiral type in the reaction zone, so that the impact and the pressure drop are small. The spiral gap formed between the radial adjacent square tubes forming the spiral disc type gas distributor is used as a catalyst loading and unloading passage, so that the problem of difficult loading and unloading of the catalyst in the reactor can be effectively solved.
Drawings
FIG. 1 is a schematic view of the structure of a reactor in the examples;
FIG. 2 is a cross-sectional view A-A of FIG. 1, at 4-fold magnification;
FIG. 3 is a schematic view of a partial structural connection of a spiral tray type gas distributor with a lower tube sheet in an embodiment;
fig. 4 is a plan view of a spiral disc type gas distributor in example 5 in which a heat exchange tube is mounted.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
In the embodiment 1, as shown in fig. 1 to 3, a reactor comprises a cylinder 1, wherein two ends of the cylinder 1 are respectively connected with an upper end enclosure 11 and a lower end enclosure 12, a reaction zone is arranged in the cylinder 1, a spiral disc type gas distributor is respectively arranged at the upper part and the lower part of the cylinder 1, the two spiral disc type gas distributors are respectively positioned right above and right below the reaction zone, each spiral disc type gas distributor comprises a distributor body 2, the distributor body 2 is composed of a plurality of closed square tubes 21 which are arranged along a spiral shape, the inner cavities of the plurality of closed square tubes 21 form spiral type spiral disc channels 22, the middle part of the distributor body 2 is provided with a cavity 23, eight closed total square tubes 20 are arranged in a radial direction penetrating through the distributor body 2, the eight total square tubes 20 are respectively communicated with the spiral disc channels 22 and the cavity 23, gaps are reserved between the radially adjacent square tubes forming the spiral disc type gas distributor, thereby forming a spiral gap 26 on the spiral plate type gas distributor, a group of parallel heat exchange tube mounting hole groups 24 are arranged on the distributor body 2, each group of heat exchange tube mounting hole groups 24 consists of a plurality of mounting holes 25 which are arranged at equal intervals along the distributor body 2 in a spiral way, each mounting hole 25 is provided with a vertically arranged heat exchange tube 3, the upper end and the lower end of each heat exchange tube 3 are respectively arranged in one mounting hole 25, the upper end and the lower end of each heat exchange tube 3 are respectively communicated with one spiral plate channel 22, a cooling medium outlet 4, a reaction gas inlet 5 and a catalyst charging port 6 are arranged on the upper end enclosure 11, a cooling medium inlet 7 and a reaction gas outlet 8 are arranged on the lower end enclosure 12, and the catalyst charging port 6, the spiral gap 26 on the upper spiral plate type gas distributor, the shell passes of each heat exchange tube 3, the spiral gap 26 on the lower spiral disc type gas distributor is communicated with the reaction gas outlet 8 in sequence, the cavity 23 of the lower spiral disc type gas distributor is communicated with the cooling medium outlet 4, the cavity 23 of the upper spiral disc type gas distributor is communicated with the cooling medium inlet 7, a discharge hopper 15 is arranged in the cylinder 1, the discharge hopper 15 is positioned right below the lower spiral disc type gas distributor, and a gas outlet hole (not shown in the figure) communicated with the reaction gas outlet 8 is formed in the discharge hopper 15.
Embodiment 2A reactor, as shown in fig. 1-3, comprises a cylinder 1, wherein both ends of the cylinder 1 are respectively connected with an upper seal head 11 and a lower seal head 12, a reaction zone is arranged in the cylinder 1, an upper tube plate 13 is arranged between the upper seal head 11 and the cylinder 1, a lower tube plate 14 is arranged between the cylinder 1 and the lower seal head 12, a spiral disc type gas distributor is respectively arranged at the upper part and the lower part of the cylinder 1, two spiral disc type gas distributors are respectively arranged on the upper tube plate 13 and the lower tube plate 14, the two spiral disc type gas distributors are respectively positioned right above and right below the reaction zone, each spiral disc type gas distributor comprises a distributor body, the distributor body is composed of a plurality of closed square tubes 21 distributed along a spiral shape, the inner cavities of the plurality of closed square tubes 21 form spiral disc channels 22, a cavity 23 is arranged at the middle part of the distributor body, eight closed total square tubes 20 are radially arranged through the distributor body, eight total square tubes 20 are respectively communicated with a spiral disc channel 22 and a cavity 23, gaps are formed between radially adjacent square tubes forming a spiral disc type gas distributor, a spiral gap 26 is formed on the spiral disc type gas distributor, a group of parallel heat exchange tube 3 mounting hole groups 24 are formed on the distributor body, each group of heat exchange tube 3 mounting hole groups 24 consists of a plurality of mounting holes 25 which are arranged at equal intervals along the distributor body in a spiral manner, each mounting hole 25 is provided with a vertically arranged heat exchange tube 3, the upper ends and the lower ends of the heat exchange tubes 3 are respectively arranged in one mounting hole 25, the upper ends and the lower ends of the plurality of heat exchange tubes 3 are respectively communicated with one spiral disc channel 22, a cooling medium outlet 4, a reaction gas inlet 5 and a catalyst charging port 6 are arranged on the upper seal head 11, a cooling medium inlet 7 and a reaction gas outlet 8 are arranged on the lower seal head 12, the catalyst charging port 6, the spiral gap 26 on the upper spiral disc type gas distributor, the shell side of the heat exchange tubes 3, the spiral gap 26 on the lower spiral disc type gas distributor and the reaction gas outlet 8 are sequentially communicated, the cavity 23 of the lower spiral disc type gas distributor is communicated with the cooling medium outlet 4, the cavity 23 of the upper spiral disc type gas distributor is communicated with the cooling medium inlet 7, a discharge hopper 15 is arranged in the cylinder 1, the discharge hopper 15 is positioned under the spiral disc type gas distributor arranged on the lower tube plate 14, and a gas outlet hole (not shown in the figure) communicated with the reaction gas outlet 8 is formed in the discharge hopper 15.
In embodiment 2, a plurality of charging holes 16 are arranged on the upper tube plate 13 along a spiral shape, the orthographic projection of the plurality of charging holes 16 falls on a spiral gap 26 of a spiral type gas distributor arranged on the upper tube plate 13, the plurality of charging holes 16 are respectively communicated with a shell side of the plurality of heat exchange tubes 3 and the spiral gap 26 on the upper spiral type gas distributor, a plurality of discharging holes 17 are arranged on the lower tube plate 14 along the spiral shape, the orthographic projection of the plurality of discharging holes 17 falls on the spiral gap 26 of the spiral type gas distributor arranged on the lower tube plate 14, and the plurality of discharging holes 17 are respectively communicated with the shell side of the plurality of heat exchange tubes 3 and the spiral gap 26 on the lower spiral type gas distributor.
In example 3, a reactor has substantially the same structure as that of example 2, except that in example 3, referring to fig. 4, two heat exchange tube 3 mounting hole groups 24 are formed in the distributor body 2, and four closed total square tubes 20 are disposed in a radial direction penetrating the distributor body 2.
Embodiment 4, see fig. 2, a spiral-disc type gas distributor, including a distributor body 2, the distributor body 2 is formed by a plurality of closed square tubes 21 arranged along the spiral, the inner cavity of the plurality of closed square tubes 21 forms a spiral-disc channel 22, a cavity 23 is arranged in the middle of the distributor body 2, a plurality of closed total square tubes 20 are radially arranged through the distributor body 2, the plurality of total square tubes 20 are respectively communicated with the spiral-disc channel 22 and the cavity 23, gaps are arranged between radially adjacent square tubes 21 forming the spiral-disc type gas distributor, thereby forming spiral gaps 26 on the spiral-disc type gas distributor, a group of parallel heat exchange tube mounting hole groups 24 are formed on the distributor body, each group of heat exchange tube mounting hole groups 24 is formed by a plurality of mounting holes 25 arranged at equal intervals along the spiral-disc type gas distributor body, each mounting hole 25 is provided with a heat exchange tube 3, and the plurality of heat exchange tubes 3 are respectively communicated with the spiral-disc channel 22.
Embodiment 5, a spiral disc type gas distributor, has substantially the same structure as the spiral disc type gas distributor of embodiment 4, except that in embodiment 4, as shown in fig. 4, two parallel heat exchange tube 3 mounting hole groups 24 are provided on the distributor body 2, and four closed total square tubes 20 are provided in a radial direction penetrating the distributor body 2.
The operation of the reactors of examples 1 to 3 is as follows: when in use, catalyst is filled into the shell passes of the heat exchange tubes 3 through the catalyst charging port 6 in advance, then reaction gas is introduced into the reactor through the reaction gas inlet 5, enters the shell passes of the heat exchange tubes 3 through the spiral gaps 26 on the upper spiral disc type gas distributor, enters the reaction gas outlet 8 after reacting in the reaction zone through the spiral gaps 26 on the lower spiral disc type gas distributor, and is discharged out of the reactor. While the reaction proceeds, a cooling medium is introduced into the reactor through the cooling medium inlet 7, reaches the cavity 23 of the lower spiral disc type gas distributor, is distributed into the spiral disc channels 22 through the plurality of total square tubes 20, and enters the tube passes of the plurality of heat exchange tubes 3, passes through the reaction area from bottom to top in the plurality of heat exchange tubes 3 and fully exchanges heat with the reaction gas, reaches the spiral disc channels 22 of the upper spiral disc type gas distributor, is collected by the plurality of total square tubes 20 of the upper spiral disc type gas distributor, enters the cooling medium outlet 4, and is discharged out of the reactor. In the reaction process, gas is uniformly distributed through the two spiral disc type gas distributors, the heat exchange tubes 3 are distributed at equal intervals along the spiral type, the heat exchange tubes 3 are uniformly distributed, cooling medium and reaction gas can uniformly enter and exit the reaction zone, the generation of a local high-temperature zone in the reaction zone is avoided, and the gas axially flows along the upright heat exchange tubes 3 distributed at equal intervals along the spiral type in the reaction zone, so that the impact and the pressure drop are small. The spiral gap 26 formed between the radially adjacent square tubes 21 constituting the spiral disc type gas distributor is used as a catalyst loading and unloading passage, so that the problem of difficult loading and unloading of the catalyst in the reactor can be effectively solved.
Claims (4)
1. A method of using a reactor, characterized by: filling a catalyst into the shell passes of the heat exchange tubes through a catalyst charging port in advance, introducing reaction gas into the reactor through a reaction gas inlet, enabling the reaction gas to enter the shell passes of the heat exchange tubes through spiral gaps on an upper spiral disc type gas distributor, enabling the reaction gas to enter a reaction gas outlet through spiral gaps on a lower spiral disc type gas distributor after reacting in a reaction zone, and discharging the reaction gas out of the reactor; introducing a cooling medium into the reactor through a cooling medium inlet while the reaction is carried out, wherein the cooling medium reaches the cavity of the lower spiral disc type gas distributor, is distributed into the spiral disc channels through a plurality of total square tubes and enters the tube passes of a plurality of heat exchange tubes, passes through the reaction area from bottom to top in the plurality of heat exchange tubes and fully exchanges heat with the reaction gas, reaches the spiral disc channels of the upper spiral disc type gas distributor, and enters a cooling medium outlet after being collected by the plurality of total square tubes of the upper spiral disc type gas distributor and is discharged out of the reactor; the reactor comprises a cylinder body, wherein the two ends of the cylinder body are respectively connected with an upper end socket and a lower end socket, a reaction zone is arranged in the cylinder body, a spiral disc type gas distributor is respectively arranged at the upper part and the lower part of the cylinder body, the two spiral disc type gas distributors are respectively arranged right above and right below the reaction zone, each spiral disc type gas distributor comprises a distributor body, the distributor body is composed of one or more closed square tubes which are spirally distributed, the inner cavity of the one or more closed square tubes forms a spiral disc channel, a cavity is arranged in the middle of the distributor body, a plurality of closed total square tubes are radially arranged through the distributor body and are respectively communicated with the spiral disc channel and the cavity, the spiral disc type gas distributor comprises a spiral disc type gas distributor, wherein a gap is formed between radially adjacent square tubes, so that the spiral disc type gas distributor is provided with a spiral gap, one or more groups of parallel heat exchange tube mounting hole groups are formed in the distributor body, each group of heat exchange tube mounting hole groups consists of a plurality of mounting holes which are distributed at equal intervals along the distributor body in a spiral manner, each mounting hole is provided with a vertically arranged heat exchange tube, the upper ends and the lower ends of the heat exchange tubes are respectively arranged in one mounting hole, the upper ends and the lower ends of the heat exchange tubes are respectively communicated with one spiral disc channel, the upper end socket is provided with a cooling medium outlet, a reaction gas inlet and a catalyst charging port, the lower end socket is provided with a cooling medium inlet and a reaction gas outlet, and the catalyst charging port is provided with a catalyst charging port, the spiral gaps on the upper spiral disc type gas distributor, the shell passes of the heat exchange tubes, the spiral gaps on the lower spiral disc type gas distributor and the reaction gas outlets are sequentially communicated, the cavity of the lower spiral disc type gas distributor is communicated with the cooling medium outlet, and the cavity of the upper spiral disc type gas distributor is communicated with the cooling medium inlet.
2. A method of using a reactor according to claim 1, wherein: the cylinder is internally provided with a discharge hopper which is positioned under the lower spiral disc type gas distributor, and the discharge hopper is provided with a gas outlet hole communicated with the reaction gas outlet.
3. A method of using a reactor according to claim 1, wherein: an upper tube plate is arranged between the upper end enclosure and the tube body, a lower tube plate is arranged between the tube body and the lower end enclosure, two spiral-disc-type gas distributors are respectively arranged on the upper tube plate and the lower tube plate, a plurality of charging holes which are arranged along a spiral shape are arranged on the upper tube plate, orthographic projections of the charging holes fall on spiral gaps of the spiral-disc-type gas distributors arranged on the upper tube plate, the charging holes are respectively communicated with shell passes of the heat exchange tubes and the spiral gaps of the upper spiral-disc-type gas distributors, a plurality of discharging holes which are arranged along the spiral shape are arranged on the lower tube plate, orthographic projections of the discharging holes fall on the spiral gaps of the spiral-disc-type gas distributors arranged on the lower tube plate, and the discharging holes are respectively communicated with the spiral gaps of the shell passes of the heat exchange tubes and the spiral gaps of the lower spiral-disc-type gas distributors.
4. A method of using a reactor according to claim 3, wherein: the cylinder is internally provided with a discharge hopper which is positioned under the spiral disc type gas distributor arranged on the lower tube plate, and the discharge hopper is provided with a gas outlet hole communicated with the reaction gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493684.1A CN108421502B (en) | 2018-05-22 | 2018-05-22 | Spiral-disk type gas distributor and reactor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493684.1A CN108421502B (en) | 2018-05-22 | 2018-05-22 | Spiral-disk type gas distributor and reactor using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108421502A CN108421502A (en) | 2018-08-21 |
| CN108421502B true CN108421502B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810493684.1A Active CN108421502B (en) | 2018-05-22 | 2018-05-22 | Spiral-disk type gas distributor and reactor using same |
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| Country | Link |
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| CN (1) | CN108421502B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249407A (en) * | 2008-04-10 | 2008-08-27 | 华东理工大学 | By-product steam combined axial flow gas-solid phase fixed bed catalyst chamber |
-
2018
- 2018-05-22 CN CN201810493684.1A patent/CN108421502B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249407A (en) * | 2008-04-10 | 2008-08-27 | 华东理工大学 | By-product steam combined axial flow gas-solid phase fixed bed catalyst chamber |
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| Publication number | Publication date |
|---|---|
| CN108421502A (en) | 2018-08-21 |
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