CN116850914A - Propane dehydrogenation device reactor roof prevents burnt steam ring - Google Patents
Propane dehydrogenation device reactor roof prevents burnt steam ring Download PDFInfo
- Publication number
- CN116850914A CN116850914A CN202311129816.XA CN202311129816A CN116850914A CN 116850914 A CN116850914 A CN 116850914A CN 202311129816 A CN202311129816 A CN 202311129816A CN 116850914 A CN116850914 A CN 116850914A
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- Prior art keywords
- ring
- semi
- pipe
- steam
- cleaning
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000006356 dehydrogenation reaction Methods 0.000 title claims abstract description 41
- 239000001294 propane Substances 0.000 title claims abstract description 40
- 238000004140 cleaning Methods 0.000 claims abstract description 68
- 238000009434 installation Methods 0.000 claims abstract description 31
- 238000004939 coking Methods 0.000 claims abstract description 29
- 238000001125 extrusion Methods 0.000 claims abstract description 22
- 244000208734 Pisonia aculeata Species 0.000 claims description 13
- 239000000571 coke Substances 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004227 thermal cracking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The application relates to the technical field of propane dehydrogenation, in particular to a top anti-coking steam ring of a propane dehydrogenation device reactor, which is characterized in that the ends of two semi-ring pipe bodies are fixed and sealed through installing a mounting seat in a cleaning component, and meanwhile, the steam ring component is quickly disassembled and assembled by matching with an installation through pipe, so that the steam ring component is convenient to replace and maintain in the later period. Meanwhile, as the end outlet of the semi-circular pipe body is sealed by the extrusion valve, and the end is communicated with the corrugated pipe through the communicating pipe of the mounting seat, when the steam exhaust hole on the semi-circular pipe body is coked and blocked, steam opens the extrusion valve to enter the corrugated pipe, the corrugated pipe drives the cleaning ring to scrape along the outer surface of the semi-circular pipe body for cleaning, and the cleaning ring automatically returns to the original state after the cleaning is completed, so that the full-automatic cleaning and resetting are realized, the full-automatic cleaning and resetting are automatically started according to actual needs, the full-automatic cleaning and resetting device can be used without additional power, and the full-automatic cleaning and cleaning device is more suitable for being used in a reactor.
Description
Technical Field
The application relates to the technical field of propane dehydrogenation, in particular to a reactor top anti-coking steam ring of a propane dehydrogenation device.
Background
An alkane dehydrogenation unit is a unit for converting an alkane (such as propane or butane) to an alkene (such as propylene or butadiene). However, alkane dehydrogenation processes may result in thermal cracking of carbon in the alkane molecule at high temperatures, resulting in coke. The accumulation of coke can lead to reduced plant operating efficiency and can cause operational problems.
Wherein during the dehydrogenation of propane, steam is introduced, which can exert the following effects: steam as carrier gas: the steam can be used as a carrier gas to carry propylene out of the reactor, facilitating separation and collection of the product. The steam is contacted with propylene in the reactor, which is carried to a condenser or separator, which separates the propylene in the liquid phase. Temperature regulation: by controlling the temperature of the steam, the temperature of the propane dehydrogenation reaction can be adjusted. Proper temperature can improve the product selectivity and yield, and reduce unnecessary side reactions and thermal cracking. Catalyst activity recovery: during catalyst regeneration, steam may be used to remove carbon fouling and coke from the catalyst surface. The water vapor can help remove coke by oxidation and hydrogenolysis, restoring catalyst activity. And (3) coke oxidation: the steam may react with the coke produced to help oxidize the coke to carbon dioxide and water vapor and purge it. This helps reduce coke accumulation and coking problems.
The steam ring is arranged at the top in the propane dehydrogenation reactor, steam is led into the propane dehydrogenation reactor to assist the reaction, but the steam ring is arranged in the reactor, so that the steam ring needs to be used for a long time, but each outlet on the steam ring body can be easily blocked by coking after being used for a long time, so that the steam ring needs to be cleaned regularly, coke and other dirt are removed, and meanwhile, the existing steam ring is fixedly arranged at the top of the reactor, so that the steam ring is not very convenient when the steam ring needs to be replaced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned problems with the existing propane dehydrogenation unit reactor roof anti-coking vapor ring.
Accordingly, the present application aims to provide a propane dehydrogenation unit reactor top anti-coking steam ring, which aims at: the long-time use of steam ring in the inside of the reactor can lead to that each outlet on the steam ring body is easy to be blocked by coking, so that the steam ring needs to be cleaned regularly, and meanwhile, the existing steam ring is fixedly arranged on the top of the reactor, so that the steam ring is not very convenient when the steam ring needs to be replaced.
In order to solve the technical problems, the application provides the following technical scheme: a propane dehydrogenation device reactor top anti-coking steam ring comprises a top part, a bottom part and a plurality of installation through pipes, wherein the top part comprises a top body and a plurality of installation through pipes installed on the top body;
the steam ring component is arranged in the top component of the device and comprises a semi-ring pipe body which is in threaded connection with the installation through pipe, and a plurality of steam exhaust holes are distributed on the semi-ring pipe body;
install cleaning part, install inside the ware top piece, it is including fixing the mount pad of ware top body inner wall, the one end joint of semi-ring body is in the mount pad, be provided with the extrusion valve in the mount pad, the extrusion valve peg graft in the one end of semi-ring body, still be provided with on the mount pad and be used for right the semi-ring body carries out clear clean ring, clean ring with be provided with the pullback spring between the mount pad, clean ring with be provided with the bellows between the mount pad, the bellows with the mount pad is linked together, be used for with the steam in the semi-ring body is imported in the bellows.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the semi-ring pipe bodies are arranged in two and symmetrically arranged, the end heads of the two semi-ring pipe bodies are respectively provided with one mounting seat, and each mounting seat is used for wrapping the end heads of the two semi-ring pipe bodies.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the mounting seat comprises a seat body fixed with the inner wall of the ware top body, a sliding cavity is arranged in the seat body, an arc-shaped shell is arranged in the sliding cavity in a sliding mode, and the arc-shaped shell and the sliding cavity wrap the ends of the two semi-circular pipe bodies.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the two sides of the arc-shaped shell are provided with raised edges, the edges are clamped in grooves in the end heads of the semi-circular pipe body, one end side surface of the arc-shaped shell is provided with a sliding foot, and the sliding foot slides in a sliding groove in the side surface of the sliding cavity.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the extrusion valve is located between the ends of the two semi-ring pipe bodies, a connecting rod is arranged on the side wall of the sliding cavity, and one end of the connecting rod is fixedly connected with the extrusion valve.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the extrusion valve comprises a valve body and two plugs arranged on two sides of the valve body, the plugs are inserted into one end outlet of the semi-ring pipe body, a communicating pipe is arranged in the sliding cavity, and the communicating pipe is communicated with the corrugated pipe.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: two symmetrical limiting rods are arranged between the plugs and the valve body, two end faces of the valve body are provided with containing grooves, and a first spring used for pushing the plugs to move outwards is arranged in each containing groove.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the inner side wall of the ware top body is provided with a ring groove, the corrugated pipe is contained in the ring groove, one end of the corrugated pipe is fixedly connected with the mounting seat, the other end of the corrugated pipe is provided with a movable ring, the outer wall of the movable ring is rotatably provided with the cleaning ring, one end of the movable ring is provided with a valve, and the valve is fixed with the mounting seat through a pull rope.
As a preferable scheme of the propane dehydrogenation unit reactor top anti-coking steam ring, the application comprises the following steps: the cleaning device comprises a mounting seat, wherein a cavity is formed in two side surfaces of the mounting seat, a pull-back spring is contained in the cavity, and one end of the pull-back spring is fixedly connected to the cleaning ring.
The middle point of the outer wall of the semi-ring pipe body is provided with a screw hole which is in threaded connection with the lower end of the installation through pipe, and the semi-ring pipe body is used as a preferable scheme of the top anti-coking steam ring of the propane dehydrogenation device reactor, wherein: the upper end of the installation through pipe is communicated with the outside through a flange.
The application has the beneficial effects that: the ends of the two semi-circular pipe bodies are fixed and sealed through the mounting seat in the mounting cleaning component, and meanwhile, the steam ring component is quickly dismounted and mounted by matching with the mounting through pipe, so that the steam ring component is convenient to replace and maintain in the later period, and the like. Meanwhile, as the end outlet of the semi-circular pipe body is sealed by the extrusion valve, and the end is communicated with the corrugated pipe through the communicating pipe of the mounting seat, when the steam exhaust hole on the semi-circular pipe body is coked and blocked, steam opens the extrusion valve to enter the corrugated pipe, the corrugated pipe drives the cleaning ring to scrape along the outer surface of the semi-circular pipe body for cleaning, and the cleaning ring automatically returns to the original state after the cleaning is completed, so that the full-automatic cleaning and resetting are realized, the full-automatic cleaning and resetting are automatically started according to actual needs, the full-automatic cleaning and resetting device can be used without additional power, and the full-automatic cleaning and cleaning device is more suitable for being used in a reactor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a reactor top anti-coking vapor ring of a propane dehydrogenation unit according to the present application.
FIG. 2 is a schematic diagram of the reactor top part structure of the reactor top anti-coking steam ring of the propane dehydrogenation unit of the present application.
FIG. 3 is a schematic diagram of the semi-sectional structure of the top anti-coking steam ring of the propane dehydrogenation unit reactor of the present application.
FIG. 4 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 3.
Fig. 5 is an enlarged schematic view of the structure at B in fig. 3.
Fig. 6 is an enlarged schematic view of the structure at C in fig. 4.
Fig. 7 is an enlarged schematic view of the structure at D in fig. 4.
Fig. 8 is an enlarged schematic view of the structure at E in fig. 7.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1-3, in a first embodiment of the present application, there is provided a propane dehydrogenation unit reactor head anti-coking steam ring comprising a head piece 100 comprising a head body 101 and a plurality of mounting tubes 102 mounted to the head body 101; the steam ring component 200 is arranged in the top component 100 and comprises a semi-ring pipe body 201 which is in threaded connection with the installation through pipe 102, and a plurality of steam exhaust holes 202 are distributed on the semi-ring pipe body 201; the cleaning component 300 is installed inside the top component 100, the cleaning component comprises an installation seat 301 fixed on the inner wall of the top body 101, one end of the semi-ring pipe body 201 is clamped in the installation seat 301, a squeezing valve 302 is arranged in the installation seat 301, the squeezing valve 302 is inserted into one end of the semi-ring pipe body 201, a cleaning ring 304 used for cleaning the semi-ring pipe body 201 is further arranged on the installation seat 301, a pull-back spring 305 is arranged between the cleaning ring 304 and the installation seat 301, a corrugated pipe 303 is arranged between the cleaning ring 304 and the installation seat 301, and the corrugated pipe 303 is communicated with the installation seat 301 and used for guiding steam in the semi-ring pipe body 201 into the corrugated pipe 303.
In this embodiment, the ends of the two half ring pipe bodies 201 are fixed and sealed by the mounting seat 301 in the mounting cleaning member 300, and meanwhile, the steam ring member 200 is quickly assembled and disassembled by matching with the mounting pipe 102, so that the steam ring member is convenient to replace and maintain in the later period. Meanwhile, as the end outlet 201b of the semi-circular pipe body 201 is sealed by the extrusion valve 302, and the end is communicated with the corrugated pipe 303 through the communicating pipe 301e of the mounting seat 301, when the steam exhaust hole 202 on the semi-circular pipe body 201 is coked and blocked, steam opens the extrusion valve 302 to enter the corrugated pipe 303, the corrugated pipe 303 drives the cleaning ring 304 to scrape along the outer surface of the semi-circular pipe body 201 for cleaning, and the cleaning ring automatically returns to the original state after the cleaning is completed, so that the full-automatic cleaning and resetting are realized, the cleaning ring can be automatically started according to actual needs, can be used without additional power, and is more suitable for being used in a reactor.
Example 2
Referring to fig. 3-8, a second embodiment of the present application is shown, which differs from the first embodiment in that: the utility model provides a propane dehydrogenation device reactor roof prevents burnt steam ring, semi-ring body 201 is provided with two, and just symmetry sets up, and there is a mount pad 301 in the end department of two semi-ring body 201 respectively, and every mount pad 301 is used for wrapping up the end of two semi-ring body 201. The mounting seat 301 comprises a seat body 301a fixed with the inner wall of the top body 101, a sliding cavity 301b is arranged in the seat body 301a, an arc-shaped shell 301c is arranged in the sliding cavity 301b in a sliding mode, and the arc-shaped shell 301c and the sliding cavity 301b wrap the ends of the two semi-ring pipe bodies 201.
Taking fig. 4 as an example, the semi-circular pipe 201 is divided into two symmetrical left and right, the mounting seat 301 is divided into two symmetrical up and down, the cleaning ring 304 and the bellows 303 are symmetrically arranged about the mounting seat 301, and are divided into two corresponding groups of an upper mounting seat 301, an upper left cleaning ring 304 and an upper left bellows 303, and an upper right cleaning ring 304 and an upper right bellows 303; two sets of lower mounting blocks 301, lower left cleaning ring 304 and lower left cleaning ring 304, lower right cleaning ring 304 and lower right bellows 303.
Specifically, the upper end of the left semi-circular pipe body 201 is located in the upper mounting seat 301 and sleeved in the upper left cleaning ring 304, the upper left cleaning ring 304 is driven by the upper left bellows 303, the lower end is located in the lower mounting seat 301 and sleeved in the lower left cleaning ring 304, and the lower left cleaning ring 304 is driven by the lower left bellows 303; the upper end of the right semi-ring pipe body 201 is located in the upper mounting seat 301 and sleeved in the upper right cleaning ring 304, the upper right cleaning ring 304 is driven by the upper right bellows 303, the lower end is located in the lower mounting seat 301 and sleeved in the lower right cleaning ring 304, and the lower right cleaning ring 304 is driven by the lower right bellows 303.
During installation, when the left semi-circular pipe body 201 is installed, firstly, the upper end of the left semi-circular pipe body 201 is inserted into the upper left cleaning ring 304, meanwhile, the lower end of the left semi-circular pipe body 201 is inserted into the lower left cleaning ring 304, then, the upper end and the lower end of the left semi-circular pipe body 201 are respectively inserted into the upper mounting seat 301 and the lower mounting seat 301, and meanwhile, one end of each extrusion valve 302 corresponding to the upper mounting seat and the lower mounting seat 301 is inserted into the outlets 201b at the upper end and the lower end of the left semi-circular pipe body 201, so that the plugging of the left semi-circular pipe body 201 is realized; similarly, when the right half ring pipe 201 is installed, the upper end of the right half ring pipe 201 is inserted into the upper right cleaning ring 304, the lower end is inserted into the lower right cleaning ring 304, then the upper and lower ends of the right half ring pipe 201 are respectively inserted into the upper mounting seat 301 and the lower mounting seat 301, and one end of each extrusion valve 302 corresponding to the upper and lower mounting seats 301 is inserted into the outlets 201b of the upper and lower ends of the right half ring pipe 201, so that the sealing of the right half ring pipe 201 is realized.
Wherein, two sides of the arc-shaped shell 301c are provided with raised edges 301c-1, the edges 301c-1 are clamped in the grooves 201a of the end heads of the semi-ring pipe bodies 201, one end side surface of the arc-shaped shell 301c is provided with a sliding foot, and the sliding foot slides in a sliding groove on the side surface of the sliding cavity 301 b.
It should be noted that, the arc-shaped shell 301c slides in the sliding groove of the sliding cavity 301b through the sliding foot, so as to limit the movement of the arc-shaped shell 301c, on one hand, avoid the arc-shaped shell 301c from completely separating from the sliding cavity 301b, and on the other hand, limit the movement direction of the arc-shaped shell 301c, so that the arc-shaped shell 301c is ensured to be positioned above the sliding cavity 301b when sliding out, and is matched with the sliding cavity 301b to clamp the end of the semi-circular pipe body 201. When the arc-shaped shell 301c slides out from the sliding cavity 301b, forms a ring shape with the sliding cavity 301b and wraps the end of the semi-circular pipe body 201, a groove 201a is arranged at the end of the semi-circular pipe body 201, when the arc-shaped shell 301c slides out, the groove 201a of the semi-circular pipe body 201 is clamped through the edge 301c-1, so that sealing between the semi-circular pipe body 201 and the mounting seat 301 is achieved, the extrusion valve 302 is matched to guide steam into the sliding cavity 301b in the mounting seat 301, and finally the communicating pipe 301e is led into the corrugated pipe 303.
The middle point of the outer wall of the semi-ring pipe body 201 is provided with a screw hole 201c, the semi-ring pipe body is in threaded connection with the lower end of the installation through pipe 102, and the upper end of the installation through pipe 102 is communicated with the outside through a flange.
It should be noted that, the lower end of the installation through pipe 102 is installed at the midpoint of the outer wall of the semi-ring pipe body 201 in a screwed connection manner, on one hand, the communication between the installation through pipe 102 and the semi-ring pipe body 201 is realized, and the installation through pipe 102 is used for guiding external steam into the semi-ring pipe body 201 through the installation through pipe 102, and finally, the external steam is discharged into the reactor from the steam discharge hole 202 of the semi-ring pipe body 201, so as to assist the propane dehydrogenation reaction, on the other hand, since the installation through pipe 102 and the semi-ring pipe body 201 are screwed and are located at the midpoint of the semi-ring pipe body 201, both ends of each semi-ring pipe body 201 are installed in the installation seat 301, so that the semi-ring pipe body 201 is installed and fixed from three points, and the support of the semi-ring pipe body 201 is ensured. The threaded connection between the installation through pipe 102 and the semi-ring pipe body 201 can be directly in threaded connection with both the semi-ring pipe body 201 and the installation through pipe 102 through threaded sleeves, or can be in threaded connection with one another through a rotatable threaded opening installed on one of the installation through pipe 102 or the semi-ring pipe body 201.
In this embodiment, when the semi-ring pipe body 201 is installed, the arc-shaped shell 301c is rotated, the arc-shaped shell 301c is inserted into the sliding cavity 301b, then the two ends of the semi-ring pipe body 201 are respectively inserted into the cleaning rings 304 corresponding to the two installation seats 301, then the two ends of the semi-ring pipe body 201 are respectively clamped into the two sliding cavities 301b, the edge 301c-1 of the arc-shaped shell 301c corresponds to the groove 201a at the end of the semi-ring pipe body 201, meanwhile, the plug 302b of the extrusion valve 302 is also inserted into the outlet 201b of the semi-ring pipe body 201, the screw hole 201c of the semi-ring pipe body 201 is butted to one end of the installation pipe 102, the semi-ring pipe body 201 is rotated to screw-connect the semi-ring pipe body 201, so that the semi-ring pipe body 201 on one side is installed, then the semi-ring pipe body 201 on the other side is installed according to the same method, finally the arc-shaped shell 301c is rotated to make the semi-ring pipe body 301 separate from the sliding cavity 301b to lock the same end of the semi-ring pipe body 201, and the air inlet 301e is opened when the arc-shaped shell 301c leaves the sliding cavity 301 b.
The rest of the structure is the same as that of embodiment 1.
Example 3
Referring to fig. 3-8, a third embodiment of the present application is shown, which differs from the second embodiment in that: the top coke-preventing steam ring of the propane dehydrogenation device reactor is provided with a squeeze valve 302 positioned between the ends of the two semi-ring pipe bodies 201, a connecting rod 301d is arranged on the side wall of the sliding cavity 301b, and one end of the connecting rod 301d is fixedly connected with the squeeze valve 302. The squeeze valve 302 includes a valve body 302a and two plugs 302b mounted on both sides of the valve body 302a, and the plugs 302b are inserted into one end outlet 201b of the semi-circular pipe body 201, and a communicating pipe 301e is provided inside the sliding cavity 301b, and the communicating pipe 301e is communicated with the bellows 303.
Wherein, a symmetrical stop lever 302c is disposed between the two plugs 302b and the valve body 302a, and two end surfaces of the valve body 302a are provided with a receiving groove 302d, a first spring 302e for pushing the plugs 302b to move outwards is disposed inside the receiving groove 302d, one end of the moving ring 303a is provided with a valve 303b, and the valve 303b is fixed with the mounting seat 301 through a pull rope 303 c. The ring groove 101a is formed in the inner side wall of the top body 101, the corrugated pipe 303 is accommodated in the ring groove 101a, one end of the corrugated pipe 303 is fixedly connected to the mounting seat 301, the movable ring 303a is arranged at the other end of the corrugated pipe, and the cleaning ring 304 is rotatably arranged on the outer wall of the movable ring 303 a. The mounting base 301 has cavities 301f on both sides, and the pull-back spring 305 is accommodated in the cavities 301f, and one end of the pull-back spring 305 is fixedly connected to the cleaning ring 304.
It should be noted that, the extrusion valve 302 is inserted into the outlet 201b of the semi-ring pipe 201 through the tapered plug 302b, so as to plug the end of the semi-ring pipe 201, on one hand, ensure that when the semi-ring pipe 201 is used normally, steam is discharged from each steam discharge hole 202 of the semi-ring pipe 201, so as to realize inputting steam into the reactor, on the other hand, ensure that when coking plugs more steam discharge holes 202, the steam pushes the plug 302b to separate from the outlet 201b of the semi-ring pipe 201, on the other hand, realize the pressure relief effect, and on the other hand, the steam enters into the bellows 303 to be used as power to push the cleaning ring 304 to clean the semi-ring pipe 201.
Because the arc-shaped shell 301c and the sliding cavity 301b are locked in a sealing manner, and meanwhile, because the arc-shaped shell 301c leaves the sliding cavity 301b, the inlet of the connecting pipe 301e in the sliding cavity 301b is opened, the outlet 201b of the semi-ring pipe 201 is communicated with the inlet of the connecting pipe 301e, and steam in the semi-ring pipe 201 can be led into the corrugated pipe 303, and the corrugated pipe 303 is pushed to be unfolded. The first spring 302e is configured to reset the plug 302b, and re-plug one end of the cleaned semi-ring pipe 201, so as to ensure that the semi-ring pipe is used normally. The setting of the stop lever 302c is used for limiting the movement of the plug 302b, so as to ensure that the plug 302b can accurately and repeatedly plug the end outlet 201b of the semi-circular pipe body 201.
The ring groove 101a is configured to limit the extending direction of the bellows 303 and the moving directions of the moving ring 303a and the cleaning ring 304, so as to ensure that the cleaning ring 304 is driven to clean the outer surface of the semi-circular pipe 201 when the bellows 303 is unfolded; on the other hand, the ring groove 101a can also protect the bellows 303 and the moving ring 303a from coking of the bellows 303 and the cleaning ring 304.
The same reason is that the pull-back spring 305 is accommodated in the cavity 301f, so that during normal use, the pull-back spring 305 is protected by the cleaning ring 304 and the cavity 301f, and coking cannot occur, so that steam can be ensured to push the corrugated pipe 303 to be unfolded, the cleaning ring 304 cleans the semi-circular pipe body 201, and the same pull-back spring 305 drives the cleaning ring 304 and the corrugated pipe 303 to recover.
It should be further noted that, in a form similar to the squeeze valve 302, the pull cord 303c is disposed inside the bellows 303, one end of the pull cord 303c is fixed to the mounting seat 301, and the other end is mounted on a conical plug of the valve 303b, so that when the bellows 303 is fully expanded, the pull cord 303c pulls the conical plug against the spring to open the movable ring 303a, and release steam inside the bellows 303, so that the bellows 303 can be reset under the action of the pullback spring 305.
In this embodiment, when the steam exhaust holes 202 of the semi-ring pipe 201 are coked during long-time use, steam in the semi-ring pipe 201 cannot be exhausted, the part of steam extrudes the plug 302b at one end, so that the plug 302b moves outwards and extrudes the first spring 302e, the extrusion valve 302 is opened, steam is led into the sliding cavity 301b from the outlet 201b of the semi-ring pipe 201, due to the sealing and locking between the arc-shaped shell 301c and the ends of the two semi-ring pipes 201, the steam is led into the corrugated pipe 303 from the sliding cavity 301b through the communicating pipe 301e, and along with the increase of the steam, the corrugated pipe 303 is pushed to grow along the annular groove 101a, the moving ring 303a at the front end of the corrugated pipe 303 is pushed to move along the annular groove 101a, the moving ring 303a drives the cleaning ring 304 to overcome the resistance of the back-pulling spring 305, the cleaning ring 304 scrapes off the outer wall of the semi-ring pipe 201, the inner wall of the semi-ring pipe 201 is coked, the steam is led into the corrugated pipe 303 from the sliding cavity 301b through the communicating pipe 301e, the steam exhaust holes 202 b are pulled back from the inner side of the back-ring 302b, and the back-pulling ring 303b is pulled back to the back from the back-pulling ring 303a, and the back end of the corrugated pipe 303 is pulled back from the back to the back end of the moving ring 303, and the back end of the corrugated pipe 303 is pulled, and the back from the back end of the steam is completely pulled from the back to the moving ring 303, and the back end of the steam pipe 303 is pulled, and the back to the back from the back end of the steam seal ring 303 is cleaned, and the back to the back from the back end of the steam seal ring 302, and the steam is cleaned, and cleaned.
The rest of the structure is the same as that of embodiment 2.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims. Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the application, or those not associated with practicing the application).
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (10)
1. A propane dehydrogenation device reactor top prevents burnt steam ring, its characterized in that: comprising the steps of (a) a step of,
a top part (100) comprising a top body (101) and a plurality of mounting ducts (102) mounted on the top body (101);
the steam ring component (200) is arranged in the top component (100) and comprises a semi-ring pipe body (201) which is in threaded connection with the installation through pipe (102), and a plurality of steam exhaust holes (202) are distributed on the semi-ring pipe body (201);
install clearance part (300), install inside ware top part (100), it is including fixing mount pad (301) of ware top body (101) inner wall, the one end joint of semi-ring body (201) is in mount pad (301), be provided with extrusion valve (302) in mount pad (301), extrusion valve (302) peg graft in semi-ring body (201) one end, still be provided with on mount pad (301) and be used for right semi-ring body (201) carries out clear clean ring (304), clean ring (304) with be provided with pullback spring (305) between mount pad (301), clean ring (304) with be provided with bellows (303) between mount pad (301), bellows (303) with mount pad (301) are linked together, are used for with steam in the semi-ring body (201) is imported in bellows (303).
2. The propane dehydrogenation unit reactor top anti-coking steam ring of claim 1, wherein: the semi-ring pipe bodies (201) are arranged in two and symmetrically arranged, the mounting seats (301) are respectively arranged at the end heads of the two semi-ring pipe bodies (201), and each mounting seat (301) is used for wrapping the end heads of the two semi-ring pipe bodies (201).
3. The propane dehydrogenation unit reactor top anti-scorch vapor ring of claim 2, wherein: the mounting seat (301) comprises a seat body (301 a) fixed with the inner wall of the ware top body (101), a sliding cavity (301 b) is arranged in the seat body (301 a), an arc-shaped shell (301 c) is arranged in the sliding cavity (301 b) in a sliding mode, and the arc-shaped shell (301 c) and the sliding cavity (301 b) wrap the ends of the two semi-ring pipe bodies (201).
4. The propane dehydrogenation unit reactor top anti-coking steam ring of claim 3, wherein: the two sides of the arc-shaped shell (301 c) are provided with raised edges (301 c-1), the edges (301 c-1) are clamped in grooves (201 a) at the end heads of the semi-circular pipe body (201), one end side surface of the arc-shaped shell (301 c) is provided with a sliding foot, and the sliding foot slides in a sliding groove at the side surface of the sliding cavity (301 b).
5. The propane dehydrogenation unit reactor top anti-coking steam ring of claim 3 or 4, wherein: the extrusion valve (302) is located between the ends of the two semi-ring pipe bodies (201), a connecting rod (301 d) is arranged on the side wall of the sliding cavity (301 b), and one end of the connecting rod (301 d) is fixedly connected with the extrusion valve (302).
6. The propane dehydrogenation unit reactor top anti-coking steam ring of claim 5, wherein: the extrusion valve (302) comprises a valve body (302 a) and two plugs (302 b) arranged on two sides of the valve body (302 a), the plugs (302 b) are inserted into one end outlet (201 b) of the semi-ring pipe body (201), a communicating pipe (301 e) is arranged in the sliding cavity (301 b), and the communicating pipe (301 e) is communicated with the corrugated pipe (303).
7. The propane dehydrogenation unit reactor top anti-scorch vapor ring of claim 6, wherein: two plugs (302 b) and a symmetrical limiting rod (302 c) are arranged between the valve bodies (302 a), two end faces of each valve body (302 a) are provided with containing grooves (302 d), and first springs (302 e) used for pushing the plugs (302 b) to move outwards are arranged in the containing grooves (302 d).
8. The propane dehydrogenation unit reactor top anti-coking steam ring of claim 6 or 7, wherein: annular groove (101 a) has been seted up to the inside wall of ware top body (101), bellows (303) are acceptd in annular groove (101 a), just one end fixed connection of bellows (303) in mount pad (301), the other end is provided with and removes ring (303 a), the outer wall rotation of removing ring (303 a) is provided with clean ring (304), wherein one end of removing ring (303 a) is provided with valve (303 b), valve (303 b) pass through stay cord (303 c) with mount pad (301) are fixed mutually.
9. The propane dehydrogenation unit reactor tip coke prevention steam ring of claim 8, wherein: two side surfaces of the mounting seat (301) are provided with cavities (301 f), the pull-back springs (305) are accommodated in the cavities (301 f), and one ends of the pull-back springs (305) are fixedly connected to the cleaning ring (304).
10. The propane dehydrogenation unit reactor tip coke prevention steam ring of claim 9, wherein: a screw hole (201 c) is formed in the middle point of the outer wall of the semi-ring pipe body (201), the semi-ring pipe body is in threaded connection with the lower end of the installation through pipe (102), and the upper end of the installation through pipe (102) is communicated with the outside through a flange.
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| CN202311129816.XA CN116850914B (en) | 2023-09-04 | 2023-09-04 | Propane dehydrogenation device reactor roof prevents burnt steam ring |
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Cited By (1)
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| CN117225299A (en) * | 2023-11-10 | 2023-12-15 | 江苏博颂能源科技有限公司 | Raw material inlet pipe fitting of propane dehydrogenation device reactor |
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| CN116850914B (en) | 2023-12-05 |
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