CN214192340U

CN214192340U - Maintenance device for regenerator of circulating fluidized bed

Info

Publication number: CN214192340U
Application number: CN202023081652.2U
Authority: CN
Inventors: 陈斌; 陈海辉; 胡斐; 王翔; 赵卫雄
Original assignee: China Shenhua Coal to Liquid Chemical Co Ltd; Shenhua Baotou Coal Chemical Industry Co Ltd
Current assignee: China Shenhua Coal to Liquid Chemical Co Ltd; Shenhua Baotou Coal Chemical Industry Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-09-14
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to a coal chemical industry field discloses an overhaul device of regenerator of circulating fluidized bed, wherein, overhaul the device including overhauing unit (10), overhaul unit (10) and include from the top first supporting part (11) and second supporting part (12) that set gradually down, first supporting part (11) set up to be used for supporting head (30) of regenerator, second supporting part (12) set up to be used for overhauing cyclone (40) of regenerator. When the maintenance device of this application is used to change cyclone, can pull down head, cyclone together from the regenerator and support through first supporting part and second supporting part respectively to separation head and cyclone. The removed head can be mounted to a new cyclone separator for lifting back into the regenerator as well. The maintenance device can conveniently and quickly complete the replacement of the cyclone separator.

Description

Maintenance device for regenerator of circulating fluidized bed

Technical Field

The utility model relates to a coal chemical industry field specifically relates to an overhaul device of circulating fluidized bed's regenerator.

Background

When large-scale equipment in the field of coal chemical industry is overhauled, large-scale parts are generally required to be disassembled and replaced. For example, in a methanol to olefins plant, the regenerator needs to be replaced. The regenerator comprises an end enclosure, a cyclone separator and a dipleg, wherein the end enclosure needs to be reused, and a new cyclone separator needs to be installed on the end enclosure during replacement. Specifically, in the prior art, the head and the corresponding structure inside the regenerator are usually reinforced, then the old cyclone separator and the dipleg are detached, and then the new cyclone separator is divided into small segments and is installed inside the head and the regenerator step by step and connected with each other again. Therefore, in the prior art, the cyclone separator for overhauling the regenerator needs a long construction period and is complex and difficult to overhaul.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the regenerator that prior art exists changes cyclone operation complicacy, cycle length, providing an overhaul device of circulating fluidized bed's regenerator, use this to overhaul the change that the device can make things convenient for, swiftly accomplish cyclone.

In order to achieve the above object, the utility model provides an overhaul device of regenerator of circulating fluidized bed, wherein, overhaul the device including overhauing the unit, overhaul the unit and include first supporting part and the second supporting part that sets gradually from the top down, first supporting part sets up to be used for supporting the head of regenerator, the second supporting part sets up to be used for overhauing the cyclone of regenerator.

Optionally, the first supporting portion includes a first platform and a first through hole disposed on the first platform, and the first through hole is configured to allow the cyclone separator to pass through and stop the sealing head.

Optionally, the second support portion comprises a second platform arranged parallel to the first platform, the second platform being for supporting and servicing the cyclonic separator.

Optionally, the second platform is provided with a second through hole allowing the dipleg of the cyclone separator to pass through and stopping at the middle part of the cyclone separator, the second support part comprises a third platform for maintaining the dipleg, and the third platform is arranged below the second platform in parallel and is provided with a third through hole allowing the dipleg to pass through.

Optionally, the maintenance device includes a frame structure, and the first support portion and the second support portion are disposed on the frame structure.

Optionally, the frame structure comprises a ladder for climbing to the first support and/or the second support.

Optionally, the frame structure includes a plurality of vertical longitudinal beams and a plurality of transverse beams transversely connecting adjacent longitudinal beams.

Optionally, a diagonal brace is arranged between the cross beam and the longitudinal beam.

Optionally, the maintenance device comprises at least two maintenance units arranged vertically side by side.

Optionally, the first supporting parts of the service units are accessible to each other; and/or the second support parts of the service units can pass each other.

Through above-mentioned technical scheme, can pull down head, cyclone together from the regenerator and support through first supporting part and second supporting part respectively to separation head and cyclone. The removed head can be mounted to a new cyclone separator for lifting back into the regenerator as well. The maintenance device can conveniently and quickly complete the replacement of the cyclone separator.

Drawings

FIG. 1 is a perspective view of one embodiment of an access device of the present application;

FIG. 2 is a front view of FIG. 1;

fig. 3 to 7 are schematic views illustrating a process of replacing a cyclone using the service apparatus of the present application.

Description of the reference numerals

10-maintenance unit, 11-first supporting part, 111-first platform, 112-first through hole, 12-second supporting part, 121-second platform, 122-second through hole, 123-third platform, 124-third through hole, 20-frame structure, 21-ladder frame, 22-longitudinal beam, 23-cross beam, 24-diagonal support, 30-end enclosure and 40-cyclone separator.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The application provides an overhaul device of regenerator of circulating fluidized bed, wherein, overhaul the device including overhauing unit 10, overhaul unit 10 and include first supporting part 11 and the second supporting part 12 that from the top down set gradually, first supporting part 11 sets up to be used for supporting the head 30 of regenerator, second supporting part 12 sets up to be used for overhauing the cyclone 40 of regenerator.

With the service device of the present application, the head 30, the cyclone 40 can be detached from the regenerator together and supported by the first and

second support portions

11 and 12, respectively, so as to separate the head 30 and the cyclone 40. The removed head 30 can be mounted to a new cyclone separator for lifting back into the regenerator as well. The maintenance device can conveniently and quickly complete the replacement of the cyclone separator.

In addition, the first support part 11 and the second support part 12 support the seal head 30 and the cyclone separator 40, and other maintenance operations (such as repair and cleaning) can be performed on the seal head 30 and the cyclone separator 40 at the same time.

Wherein, the first supporting portion 11 may adopt a proper structure so as to support the sealing head 30. For example, as shown in fig. 1, the first supporting portion 11 includes a first platform 111 and a first through hole 112 disposed on the first platform 111, and the first through hole 112 is configured to allow the cyclone separator 40 to pass therethrough to stop the sealing head 30. Thus, after the header 30 and the cyclone separator 40 (with dipleg) are removed from the regenerator, the header 30 can be lifted above the inspection apparatus and dropped onto the first platform 111, while the cyclone separator 40 passes through the first through-hole 112. To facilitate removal of the connection of the head 30 to the cyclone 40, the head 30 may be temporarily fixed to the first platform 111, for example, a temporary fixing point may be provided on the first platform 111, and the head 30 may be temporarily welded to the temporary fixing point. Wherein the temporary fixing point may be disposed around the first through hole 112. It will be appreciated that the first platform 111 can serve as both a structure for supporting the head 30 and as an operating platform for an operator to perform welding.

The second support portion 12 may also adopt a similar structure. Specifically, the second support portion 12 includes a second platform 121 disposed parallel to the first platform 111, and the second platform 121 is used to support and service the cyclone separator 40. In use, when the head 30 is supported on the first platform 111, the cyclone separator 40 may also be supported on the second platform 121 so as to retain the cyclone separator 40 by the second platform 121 after the connection of the head 30 to the cyclone separator 40 is removed. Likewise, a temporary fixing point may be provided on the second platform 121 to temporarily weld the cyclone separator 40 to the temporary fixing point. It will be appreciated that the second platform 121 can be used both as a structure for the cyclone separator 40 and as a platform for the operator to perform the welding.

To facilitate the inspection of the dipleg of the cyclone, it is preferable that the second platform 121 is provided with a second through hole 122 allowing the dipleg of the cyclone to pass through and stopping at the middle of the cyclone 40 as shown in fig. 1 and 2 (the temporary fixing point of the second platform 121 may be provided around the second through hole 122), and the second support 12 includes a third platform 123 for maintaining the dipleg, and the third platform 123 is provided in parallel below the second platform 122 and is provided with a third through hole 124 allowing the dipleg to pass through. When the end socket 30, the cyclone separator 40 and the dipleg are hoisted together, the dipleg can pass through the third through hole 124, and the third platform 123 can be positioned at the upper end of the dipleg, so that the third platform 123 can be used for disassembling the dipleg and the cyclone separator 40.

In the present application, the first support part 11 and the second support part 12 may be provided on a suitable support basis. Preferably, the service device comprises a frame structure 20, the first support 11 and the second support 12 being layered on the frame structure 20.

Wherein, in order to facilitate the access of the operator to the first support 11 and the second support 12 for the respective operations, the frame structure 20 comprises a ladder rack 21 for climbing to the first support 11 and/or the second support 12. In particular, a ladder frame 21 may be provided which extends from the ground to the first support 11, so that an operator may enter the second support 12 (e.g. the second platform 121) when climbing to the height of the second support 12. Alternatively, the ladder frame 21 may include a first portion extending from the ground to the second support portion 12 and a second portion extending from the second support portion 12 to the first support portion 11, and the positions of the first portion and the second portion may be selected as desired without being continuously arranged in the vertical direction. In addition, in the case where the second support portion 12 includes the second platform 121 and the third platform 123, the ladder frame 21 may further include a third portion extending from the second platform 121 to the third platform 123 so that the operator can move to and from the platforms.

The frame structure 20 may be of any suitable form as long as it provides sufficient support. For example, the frame structure 20 may include a plurality of vertical longitudinal beams 22 and a plurality of transverse beams 23 laterally connecting adjacent longitudinal beams 22. The beam 23 may be divided into a plurality of layers, and the first platform 111, the second platform 121, and the third platform 123 may be built on the layers formed by the corresponding beam 23.

In addition, to enhance the supporting strength and stability of the frame structure 20, a diagonal brace 24 may be disposed between the cross beam 22 and the longitudinal beam 23. Specifically, a plurality of diagonal braces 24 may be provided between adjacent layers formed by the cross beams 23, and one end of each diagonal brace 24 is connected to the upper cross beam 23, and the other end is connected to the lower cross beam 23 (if the lower cross beam 23 is provided) and the longitudinal beam 22.

In addition, for the convenience of replacement operation, the service apparatus may include at least two service units 10 arranged vertically side by side. Therefore, the detached seal head 30 and the detached cyclone separator 40 can be supported on one maintenance unit 10, a new cyclone separator 40 is supported on the other maintenance unit 10, and the seal head 30 can be conveniently lifted and moved during replacement.

In addition, in order to facilitate the continuous disassembly and assembly by the operator, the first support portions 11 of the service units 10 are accessible to each other; and/or the second supports 12 of the service units 10 can pass each other. An operator can pass to another service unit 10 through at least one of the first support 11 and the second support 12 (and can move between floors through the ladder frame 21 of the service unit 10 after arriving at another service unit 10), and can perform an operation of installing a new cyclone immediately after the old cyclone is disassembled.

The operation of replacing the cyclone separator using the service device of the present application will be described with reference to the accompanying drawings.

Wherein the service device comprises two service units 10, the service units 10 on the left and right sides of figure 3 being used for placing old and new cyclones, respectively.

First, as shown in fig. 3, a new cyclone is hoisted to the corresponding service unit 10 (i.e., the service unit 10 on the right side in fig. 3) to be supported by the second platform 121 (the cyclone 40 may be temporarily fixed to the second platform 121), at which time the cyclone 40 may be preassembled and hoisted together with the legs.

Then, the old cyclone and the head 30 are removed together from the regenerator, and then, as shown in fig. 4 and 5, the old cyclone 40 and the head 30 are hoisted together onto the corresponding service unit 10 (i.e., the service unit 10 on the left side in fig. 4) to support the head 30 and the cyclone 40 through the first and

second stages

111 and 121, respectively. At this time, the connection between the sealing head 30 and the cyclone separator 40 may be detached (the sealing head 30 and the cyclone separator 40 may be temporarily fixed to the first platform 111 and the second platform 121, respectively, before detachment), so that the sealing head 30 is detached from the cyclone separator 40.

Subsequently, as shown in fig. 6, after the temporary fixation with the first platform 111 is removed, the head 30 is lifted to the service unit 10 where the new cyclone 40 is located (i.e., the service unit 10 on the right side in fig. 6), and the head 30 is supported on the first platform 111. The head 30 and the new cyclone separator 40 can now be connected.

After the connection is completed, the head 30 and the new cyclone are lifted integrally into the regenerator, leaving only the old cyclone 40 removed in the service unit, as shown in fig. 7.

Therefore, by using the overhauling device, the method for replacing the cyclone separator can be simplified, the overhauling difficulty is reduced, the construction period is shortened, and the cost is reduced.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The utility model provides an overhaul device of regenerator of circulating fluidized bed, its characterized in that, overhaul the device including overhauing unit (10), overhaul unit (10) and include first supporting part (11) and second supporting part (12) that set gradually from the top down, first supporting part (11) set up to be used for supporting head (30) of regenerator, second supporting part (12) set up to be used for overhauing cyclone (40) of regenerator.

2. The servicing device of a regenerator of a circulating fluidized bed according to claim 1, characterized in that said first support (11) comprises a first platform (111) and a first through hole (112) provided on said first platform (111), said first through hole (112) being arranged to allow the passage of said cyclone separator (40) stopping said head (30).

3. The servicing device of a regenerator of a circulating fluidized bed according to claim 2, characterized in that said second support (12) comprises a second platform (121) arranged parallel to said first platform (111), said second platform (121) being intended to support and service said cyclone separator (40).

4. The servicing device of a regenerator of a circulating fluidized bed according to claim 3, characterized in that said second platform (121) is provided with a second through hole (122) allowing the passage of the dipleg of said cyclone and stopping at the middle of said cyclone (40), said second support (12) comprises a third platform (123) for maintaining said dipleg, said third platform (123) being arranged in parallel below said second platform (121) and being provided with a third through hole (124) allowing the passage of said dipleg.

5. A service device of a regenerator of a circulating fluidized bed according to claim 1, characterized in that the service device comprises a frame structure (20), the first support (11) and the second support (12) being layered on the frame structure (20).

6. Servicing device for a regenerator of a circulating fluidized bed according to claim 5, characterized in that the frame structure (20) comprises a ladder (21) for climbing up to the first support (11) and/or the second support (12).

7. A service device of a regenerator of a circulating fluidized bed according to claim 5, characterized in that the frame structure (20) comprises a plurality of longitudinal beams (22) arranged vertically and a plurality of cross beams (23) connecting laterally adjacent longitudinal beams (22).

8. Servicing device for a regenerator of a circulating fluidized bed according to claim 7, characterized in that a diagonal brace (24) is provided between the cross beam (23) and the longitudinal beam (22).

9. A service arrangement of a regenerator of a circulating fluidized bed according to any of claims 1-8, characterized in that the service arrangement comprises at least two of the service units (10) arranged vertically side by side.

10. The servicing device of a regenerator of a circulating fluidized bed according to claim 9, characterized in that the first support (11) of each servicing unit (10) is accessible to each other; and/or the second supports (12) of each service unit (10) are accessible to each other.