CN114752402A - Opening and closing mechanism for inspection opening of catalytic cracking furnace - Google Patents
Opening and closing mechanism for inspection opening of catalytic cracking furnace Download PDFInfo
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- CN114752402A CN114752402A CN202210259199.4A CN202210259199A CN114752402A CN 114752402 A CN114752402 A CN 114752402A CN 202210259199 A CN202210259199 A CN 202210259199A CN 114752402 A CN114752402 A CN 114752402A
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- assembly
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- inspection
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/18—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
- C07C4/04—Thermal processes
Abstract
The invention relates to the technical field of chemical production equipment, in particular to an inspection opening and closing mechanism for a catalytic cracking furnace. The invention relates to an inspection opening and closing mechanism for a catalytic cracking furnace, which consists of a fixed assembly frame body arranged on the inner side wall of an inspection opening, inner-side refractory bricks, a lateral assembly seat arranged on the outer side of the fixed assembly frame body, an outer overturning control arm movably assembled on the outer side of the lateral assembly seat and outer-side refractory bricks arranged at the closed end of the outer overturning control arm, wherein the inner-side refractory bricks and the outer-side refractory bricks are in extrusion fit, so that the sealing property of the inspection opening is ensured, and the safety of the inspection opening is improved; the vertical assembly frame that outside upset control arm utilized the link extrudees the assembly with first elastic limiting block and second elastic limiting block respectively, can carry out the locking and spacing, convenient regulation and control to the position of outside upset control arm at the multi-angle.
Description
Technical Field
The invention relates to the technical field of chemical production equipment, in particular to an opening and closing mechanism for an inspection hole of a catalytic cracking furnace.
Background
The ethylene cracking furnace is used for processing cracking gas and is of the types of double radiation chambers, single radiation chambers and millisecond furnaces. The ethylene cracking furnace is the core equipment of an ethylene production device, and mainly has the functions of processing various raw materials such as natural gas, refinery gas, crude oil, naphtha and the like into cracking gas, providing the cracking gas for other ethylene devices, and finally processing the cracking gas into ethylene, propylene and various byproducts. The production capacity and the technical height of the ethylene cracking furnace directly determine the production scale, the yield and the product quality of the whole set of ethylene equipment, so that the ethylene cracking furnace plays a leading role in the ethylene production equipment and even the whole set of petrochemical production.
The ethylene cracking furnace is divided into a convection section and a radiation section. Generally, the convection section functions to recover the flue gas waste heat for preheating and vaporizing the feed oil and superheating the feed oil and dilution steam to the cross-over temperature of the material, with the remaining heat being used to superheat the ultra-high pressure steam and preheat boiler feed water. During the preheating and vaporizing process of the material, diluting steam is injected to lower the vaporizing temperature of the material oil and prevent coking of the material oil during the vaporizing process. Each group of coil pipes of the convection section of the cracking furnace is mainly formed by assembling and welding heat exchange furnace pipes (light pipes or finned pipes) through return bends, the end pipe plates and the middle pipe plate support the furnace pipes, and the inlets and outlets of some coil pipes are gathered together through a header. The periphery of each group of coil pipes is assembled to the upper furnace wall to form a module.
The ethylene cracking furnace is technically classified into a double radiation chamber, a single radiation chamber and a millisecond furnace. The types of the furnaces can be classified into CBL cracking furnaces, SRT cracking furnaces, USC cracking furnaces, KTI GK cracking furnaces, millisecond cracking furnaces and Pyrocack cracking furnaces.
In order to cooperate and survey the inside state of the cracking furnace, need set up the inspection socket on the cracking furnace, be applied to the inspection socket simple structure of cracking furnace on the market at present, durability and security are all very limited, and the control mode and the state of accomodating of outside closing device are also very single simultaneously.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background technology, an improved opening and closing mechanism for an inspection hole of a catalytic cracking furnace is provided, and the problems that the inspection hole applied to the cracking furnace in the market at present is simple in structure, very limited in durability and safety, and simultaneously, the control mode and the storage state of an external closing device are also very single are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an inspection opening starting and stopping mechanism for catalytic cracking furnace, is including seting up the inspection opening on the catalytic cracking furnace body lateral wall, fixing the fixed assembly framework on the interior lateral wall of inspection opening, inboard resistant firebrick and the resistant firebrick in the outside, the interior lateral wall of inspection opening on all offer the side direction assembly groove that is used for installing inboard resistant firebrick, fixed assembly framework lateral surface be located inspection opening one side and have an organic whole structure side direction assembly seat, the activity of side direction assembly seat outside be equipped with outside upset control arm, outside upset control arm top welded fastening have the outside closed closing plate who is used for closed inspection opening, outside closed closing plate be close to and be provided with the interior assembly seat that is used for assembling outside resistant firebrick on the inspection opening lateral wall.
The inside central point of side direction assembly seat put and seted up vertical mounting hole, the inside left side of side direction assembly seat install first elastic limiting block, the inside right side of side direction assembly seat install second elastic limiting block.
The outside upset control arm include run through vertical mounting hole and side direction assembly seat swing joint's first control arm, the second control arm of activity assembly on first control arm outside top, fix the outside limiting plate at first control arm link and install the side direction locking bolt on the limiting plate in the outside through vertical assembly frame.
And an inner extrusion elastic sheet for controlling the inner refractory bricks to extrude towards the inspection opening is arranged on the inner side surface of the inner refractory bricks.
The outer closed sealing plate is located at the assembling end of the inner assembling seat and is fixedly welded with an inner assembling shaft tube, an assembling blind hole matched with the inner assembling shaft tube is formed in the outer side surface of the inner assembling seat, and an inner buffering spring is installed inside the inner assembling shaft tube.
The lateral surface of the external closed sealing plate is positioned on the periphery of the inner side assembly shaft tube and is provided with a plurality of arc-shaped adjusting openings arranged in an annular array, the lateral movable assembly of the external closed sealing plate is provided with a lateral adjusting frame, the assembly end of the lateral adjusting frame is provided with an arc-shaped control plate protruding into the arc-shaped adjusting openings, the lateral wall of the arc-shaped control plate is provided with an L-shaped structure lateral limiting support used for locking the inner side refractory bricks, and the lateral wall of the inner side refractory bricks is provided with an L-shaped structure lateral limiting clamping groove matched with the lateral limiting support.
Vertical assembly frame close on first elastic limiting block and second elastic limiting block and hold and seted up arc positioning channel groove on the lateral wall, first elastic limiting block and second elastic limiting block insert arc positioning channel groove inside through top arc extrusion head and vertically assemble frame elastic extrusion.
And an elastic torsion spring for controlling the arc control plate to elastically reset is arranged on the side wall of the external closed sealing plate.
The assembly ends on the two sides of the inner refractory brick are both provided with inclined closed surfaces.
The beneficial effects of the invention are:
(1) the invention relates to an inspection opening and closing mechanism for a catalytic cracking furnace, which consists of a fixed assembly frame body arranged on the inner side wall of an inspection opening, inner-side refractory bricks, a lateral assembly seat arranged on the outer side of the fixed assembly frame body, an outer overturning control arm movably assembled on the outer side of the lateral assembly seat and outer-side refractory bricks arranged at the closed end of the outer overturning control arm, wherein the inner-side refractory bricks and the outer-side refractory bricks are in extrusion fit, so that the sealing property of the inspection opening is ensured, and the safety of the inspection opening is improved;
(2) the external turnover control arm is respectively assembled with the first elastic limiting block and the second elastic limiting block in an extruding way by utilizing the longitudinal assembling frame of the connecting end, so that the position of the external turnover control arm can be locked and limited at multiple angles, and the adjustment and control are convenient;
(3) the external turnover control arm adopts a multi-section lockable structural design, so that the external turnover control arm can be folded and stored as required;
(4) the outside closed sealing plate is elastically assembled with the inner side assembling shaft tube on the inner assembling seat through the inner buffering spring, so that the impact of the inner impact force on the opening and closing mechanism can be effectively reduced, and the safety is greatly improved.
(5) The lateral adjusting frame of the built-in arc control panel is movably assembled on the outer side of the external closed sealing plate, the lateral limiting support on the arc control panel is rotated to insert the lateral limiting clamping groove to be connected with the inner side refractory brick, and therefore the sealing performance and the safety are improved, and the structure under the closed state is more stable.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic assembly of the present invention.
Fig. 2 is a side cross-sectional view of the present invention.
FIG. 3 is a partial cross-sectional view of the inner refractory block-receiving end of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
FIG. 1, the inspection hole opening and closing mechanism for catalytic cracking furnace that fig. 2 and fig. 3 show, including seting up inspection hole 2 on the lateral wall of catalytic cracking furnace body 1, fix the fixed assembly framework 3 on the inside wall of inspection hole 2, inboard resistant firebrick 4 and outside resistant firebrick 5, all offer the side direction assembly groove that is used for installing inboard resistant firebrick 4 on the inside wall of inspection hole 2, fixed assembly framework 3 lateral surface is located inspection hole 2 one side and has an organic whole structure side direction assembly seat 55, the activity of side direction assembly seat 55 outside is equipped with outside upset control arm, outside upset control arm top welded fastening has the outside closed closing seal plate 6 that is used for closed inspection hole 2, outside closed seal plate 6 is provided with the interior assembly seat 7 that is used for assembling outside resistant firebrick 5 on being close to the inspection hole 2 lateral wall.
The operation principle is as follows: people drive outside closed sealing plate 6 through outside upset control arm and to the upset of inspection socket 2 position, and outside closed sealing plate 6 when moving inspection socket 2 open position, inside the resistant firebrick 5 of outside inserted inspection socket 2, and inboard resistant firebrick 4 is from extruding the resistant firebrick 5 lateral surfaces in the outside all around to form the firebrick wall of a closed inspection socket 2.
Further, for the cooperation movable assembly and the side direction elasticity extrusion spacing, longitudinal installation hole 8 has been seted up to the inside central point of side direction assembly seat 55, and first elasticity stopper 9 is installed on the inside left side of side direction assembly seat 55, and second elasticity stopper 10 is installed on the inside right side of side direction assembly seat 55.
Further, in order to cooperate and carry out assembly and structural adjustment on the whole external overturning control arm, the external overturning control arm comprises a first control arm 11 which penetrates through the longitudinal mounting hole 8 and is movably connected with the lateral mounting seat 55 through a longitudinal mounting frame 111, a second control arm 12 which is movably mounted at the top end of the outer side of the first control arm 11, an outer side limiting plate 13 which is fixed at the connecting end of the first control arm 11, and a lateral locking bolt 14 which is mounted on the outer side limiting plate 13.
And a locking screw hole matched with the lateral locking bolt 14 is formed in the second control arm 12, and the first control arm 11 is screwed into the locking screw hole through the lateral locking bolt 14 and is fixedly assembled with the second control arm 12.
Further, an inner pressing spring 15 for controlling the pressing of the inner refractory bricks 4 to the position of the inspection hole 2 is attached to the inner surface of the inner refractory bricks 4 in order to match the inner elastic pressing.
The inner squeeze tab 15 elastically squeezes and restricts the fitting of the inner refractory bricks 4 by penetrating the inside of the inner refractory bricks 4.
Further, in order to cooperate with sliding assembly and elastic cushioning, the outer closed sealing plate 6 is located the assembly end of the inner assembly base 7 and is welded and fixed with an inner assembly shaft tube 16, an assembly blind hole 17 matched with the inner assembly shaft tube 16 is formed in the outer side surface of the inner assembly base 7, and an inner cushioning spring 18 is installed inside the inner assembly shaft tube 16.
The section of the inner assembling shaft tube 16 is a non-circular structure, and the inner assembling seat 7 is sleeved outside the inner assembling shaft tube 16 through the assembling blind hole 17 and is in sliding assembly with the outer closed sealing plate 6.
Further, in order to cooperate side direction activity assembly and external control deciliter, outside closed sealing plate 6 lateral surface is located inboard assembly central siphon 16 periphery and has seted up 2 arc regulation mouths 19 that are the ring array and arrange, outside closed sealing plate 6 outside activity assembly has side direction regulation frame 20, side direction regulation frame 20 assembly end has to the interior bellied arc control panel 21 of arc regulation mouth 19, have the spacing support 22 of L type structure side direction that is used for the inboard resistant firebrick 4 of locking on the arc control panel 21 lateral wall, set up on the inboard resistant firebrick 4 lateral wall with the spacing draw-in groove 23 of side direction spacing support 22 matched with L type structure side direction.
The position of the lateral limiting clamping groove 23 close to the lateral limiting support 22 is provided with a loading and unloading opening, the external closed sealing plate 6 controls the external refractory bricks 5, the arc-shaped control plate 21 and the lateral limiting support 22 to be inserted into the inspection opening 2, at this time, the lateral limiting support 22 is inserted into the loading and unloading opening, then the lateral limiting support 22 is driven to be inserted into the limiting section of the lateral limiting clamping groove 23 by rotating the lateral adjusting frame 20, and therefore the clamping of all the internal refractory bricks 4 is completed to be limited.
Furthermore, in order to cooperate with the rotation, the insertion and separation, an arc-shaped positioning clamping groove 24 is formed in the side wall of the longitudinal assembling frame 111 near the first elastic limiting block 9 and the second elastic limiting block 10, and the first elastic limiting block 9 and the second elastic limiting block 10 are inserted into the arc-shaped positioning clamping groove 24 through a top arc-shaped extrusion head 25 and are elastically extruded with the longitudinal assembling frame 111.
Further, for the cooperation elasticity extrusion is spacing to promote assembly firmness and stability, install the elasticity torsional spring 26 that is used for controlling arc control panel 21 elasticity and resets on the outside closed sealing plate 6 lateral wall.
Further, in order to improve the lateral assembly sealing performance, the assembly ends on the two sides of the inner refractory brick 4 are respectively provided with an inclined closed surface.
The invention relates to an inspection opening and closing mechanism for a catalytic cracking furnace, which consists of a fixed assembly frame body 3 arranged on the inner side wall of an inspection opening 2, an inner side refractory brick 4, a lateral assembly seat 55 arranged on the outer side of the fixed assembly frame body 3, an outer overturning control arm movably assembled on the outer side of the lateral assembly seat 55 and an outer side refractory brick 5 arranged at the closed end of the outer overturning control arm, wherein the inner side refractory brick 4 and the outer side refractory brick 5 are in extrusion fit, so that the sealing property of the inspection opening is ensured, and the safety of the inspection opening is improved; the external overturning control arm is respectively assembled with the first elastic limiting block and the second elastic limiting block in an extruding way by utilizing the longitudinal assembling frame of the connecting end, so that the position of the external overturning control arm can be locked and limited at multiple angles, and the adjustment and control are convenient; the external turnover control arm adopts a multi-section lockable structural design, so that the external turnover control arm can be folded and stored as required; the outside closed sealing plate is elastically assembled with the inner side assembling shaft tube on the inner assembling seat through the inner buffering spring, so that the impact of the inner impact force on the opening and closing mechanism can be effectively reduced, and the safety is greatly improved. The lateral adjusting frame with the built-in arc control plate is movably assembled outside the external closed sealing plate, and the lateral limiting support on the arc control plate is rotated to insert the lateral limiting clamping groove to be connected with the inner side refractory brick, so that the sealing performance and the safety are improved, and the structure in a closed state is more stable.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides an inspection opening starting and stopping mechanism for catalytic cracking furnace, is including offering inspection opening (2) on catalytic cracking furnace body (1) lateral wall, fixing assembly framework (3), the resistant firebrick (4) are resisted to inboard and the resistant firebrick (5) are resisted in the outside on inspection opening (3) inside wall, characterized by: the side direction assembly groove that is used for installing inboard resistant firebrick (4) all seted up on inspection door (2) inside wall, fixed mounting framework (3) lateral surface be located inspection door (2) one side and have an organic whole structure side direction assembly seat (55), side direction assembly seat (55) outside activity be equipped with outside upset control arm, outside upset control arm top welded fastening have outside closing seal board (6) that are used for closed inspection door (2), outside closing seal board (6) be close to and be provided with on inspection door (2) lateral wall and be used for assembling inside assembly seat (7) of outside resistant firebrick (5).
2. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 1, wherein: the side direction assembly seat (55) inside central point put and seted up vertical mounting hole (8), the inside left side of side direction assembly seat (55) install first elasticity stopper (9), the inside right side of side direction assembly seat (55) install second elasticity stopper (10).
3. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 1, wherein: outside upset control arm include run through vertical mounting hole (8) and side direction assembly seat (55) swing joint's first control arm (11), second control arm (12) of movable assembly at first control arm (11) outside top, fix outside limiting plate (13) at first control arm (11) link and install side direction locking bolt (14) on outside limiting plate (13) through vertical assembly frame (111).
4. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 1, wherein: the inner side surface of the inner refractory brick (4) is provided with an inner extrusion shrapnel (15) for controlling the inner refractory brick (4) to extrude towards the position of the inspection opening.
5. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 1, wherein: the outer closed sealing plate (6) is located an inner assembling seat (7) assembling end and is welded and fixed with an inner assembling shaft tube (16), an assembling blind hole (17) matched with the inner assembling shaft tube (16) is formed in the outer side face of the inner assembling seat (7), and an inner buffering spring (18) is arranged inside the inner assembling shaft tube (16).
6. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 5, wherein: outside closed sealing plate (6) lateral surface be located inboard assembly central siphon (16) periphery and seted up a plurality of arc regulation mouthful (19) that are the ring array and arrange, outside closed sealing plate (6) outside activity be equipped with side direction regulation frame (20), side direction regulation frame (20) assembly end bellied arc control panel (21) in having to arc regulation mouthful (19), arc control panel (21) lateral wall on have L type structure side direction spacing support (22) that are used for the inboard resistant firebrick (4) of locking, inboard resistant firebrick (4) lateral wall on seted up with side direction spacing support (22) matched with L type structure side direction spacing draw-in groove (23).
7. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 2, wherein: vertical assembly frame (111) close on first elastic limiting block (9) and second elastic limiting block (10) and hold the lateral wall on seted up arc positioning slot (24), first elastic limiting block (9) and second elastic limiting block (10) insert arc positioning slot (24) inside and vertical assembly frame (111) elastic extrusion through top arc extrusion head (25).
8. The opening and closing mechanism for the inspection port of the catalytic cracking furnace according to claim 6, wherein: and an elastic torsion spring (26) for controlling the arc-shaped control plate (21) to elastically reset is arranged on the side wall of the external closed sealing plate (6).
9. The opening and closing mechanism of the inspection hole for the catalytic cracking furnace as claimed in claim 1, wherein: the assembly ends on the two sides of the inner refractory brick (4) are both provided with inclined closed surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210259199.4A CN114752402B (en) | 2022-03-16 | 2022-03-16 | Inspection port opening and closing mechanism for catalytic cracking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210259199.4A CN114752402B (en) | 2022-03-16 | 2022-03-16 | Inspection port opening and closing mechanism for catalytic cracking furnace |
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| Publication Number | Publication Date |
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| CN114752402A true CN114752402A (en) | 2022-07-15 |
| CN114752402B CN114752402B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210259199.4A Active CN114752402B (en) | 2022-03-16 | 2022-03-16 | Inspection port opening and closing mechanism for catalytic cracking furnace |
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| CN (1) | CN114752402B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115414870A (en) * | 2022-08-25 | 2022-12-02 | 江苏博颂能源科技有限公司 | ADHO device is anti for unit again catalyst flourishing device |
| CN115505415A (en) * | 2022-08-25 | 2022-12-23 | 江苏博颂能源科技有限公司 | Catalytic cracking pilot scale is multidirectional closed detecting element for device |
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| CN215175987U (en) * | 2021-03-29 | 2021-12-14 | 浙江特富滨特热能科技有限公司 | High-efficient water-cooling mixes gas vacuum boiler in advance |
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| CN115414870A (en) * | 2022-08-25 | 2022-12-02 | 江苏博颂能源科技有限公司 | ADHO device is anti for unit again catalyst flourishing device |
| CN115505415A (en) * | 2022-08-25 | 2022-12-23 | 江苏博颂能源科技有限公司 | Catalytic cracking pilot scale is multidirectional closed detecting element for device |
| CN115505415B (en) * | 2022-08-25 | 2023-09-22 | 江苏博颂能源科技有限公司 | Multidirectional closed detection unit for catalytic cracking pilot plant |
| CN115414870B (en) * | 2022-08-25 | 2023-11-03 | 江苏博颂能源科技有限公司 | Catalyst loading device for ADHO device anti-regeneration unit |
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| Publication number | Publication date |
|---|---|
| CN114752402B (en) | 2023-09-22 |
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