CN217774813U

CN217774813U - Catalyst separation hopper supporting structure in continuous reforming device

Info

Publication number: CN217774813U
Application number: CN202221209804.9U
Authority: CN
Inventors: 陈亚南; 王亚杰; 付艳波; 陈雪敏; 胡玉耀; 崔欣欣
Original assignee: LUOYANG RUIZE PETROCHEMICAL ENGINEERING CO LTD
Current assignee: LUOYANG RUIZE PETROCHEMICAL ENGINEERING CO LTD
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-11-11
Anticipated expiration: 2032-05-19

Abstract

The utility model provides a catalyst separation hopper bearing structure among continuous reforming apparatus, includes lug (4), constant force spring (5), structure roof beam (7), and four lugs (4) set up in the casing outside of catalyst separation hopper, and structure roof beam (7) are located the top of corresponding lug (4), the lower extreme and lug (4) of constant force spring (5) are connected, upper end and structure roof beam (7) rigid coupling, its characterized in that: the device also comprises four support lugs (6), and the support lugs (6) rest on the structural beam (7) when the catalyst separation hopper is in a non-working state. The utility model discloses avoid catalyst pipeline, equipment mouth atress too big problem under different states, avoided the destruction of constant force spring and the damage of catalyst pipeline simultaneously, reduced manufacturing cost, improved equipment and pipeline factor of safety under different work condition to reduce the maintenance cost in later stage.

Description

Catalyst separation hopper supporting structure in continuous reforming device

Technical Field

The utility model belongs to crude oil processing field, concretely relates to catalyst separation hopper bearing structure among continuous reforming unit.

Background

The catalyst hopper is a separation device which separates small-particle waste catalyst from normal whole-particle catalyst under the condition that nitrogen fluid reversely flows from bottom to top by utilizing different sizes and weights of solid particles of the catalyst.

In the continuous reforming device, because the catalyst is solid particles, when the catalyst equipment and the pipeline thereof are arranged, the catalyst pipeline cannot have dead angles, and the gradient cannot be less than 60 degrees, so that the aim of flowing the catalyst solid particles is fulfilled. The catalyst pipeline and the regenerator are relatively high in temperature during working and are affected by expansion with heat and contraction with cold, the catalyst separation hopper and the regenerator nozzle are easily subjected to relatively large load, the catalyst separation hopper is connected with the regenerator nozzle through a flange, and the flange can be leaked due to relatively large stress, so that accident potential is caused.

In providing a support structure for the catalyst separation hopper, in order to solve the stress due to thermal expansion of the pipes and the equipment, a constant force spring is conventionally used, as shown in detail in fig. 1. The problem that the stress of the catalyst separation hopper and the nozzle of the regenerator is too large in the working state can be well solved by using the constant force spring, but the loading capacity of the catalyst separation hopper is about 2.5t in the working state and about 10t in the shutdown maintenance state, and the constant force spring and the catalyst pipeline cannot bear the large load change, so that the constant force spring can be damaged and the catalyst pipeline can be damaged by plastic deformation finally.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a catalyst separation hopper supporting structure in a continuous reforming device.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a catalyst separation hopper bearing structure among continuous reformer, includes lug 4, constant force spring 5, structural beam 7, and four lugs 4 set up in the casing outside of catalyst separation hopper, and structural beam 7 is located the top of corresponding lug 4, the lower extreme and the lug 4 of constant force spring 5 are connected, the upper end and structural beam 7 rigid coupling, its characterized in that: four lugs 6 are also included, which lugs 6 rest on the structural beams 7 in the inactive state of the catalyst separation hopper.

Further, the support lug 6 is fixedly connected with the outer side of the catalyst separation hopper shell through welding or integral casting.

Further, the support lug 6 is of a stud structure.

Further, the non-working state comprises an installation state and a shutdown and maintenance state.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model relates to a catalyst separation hopper bearing structure in continuous reforming unit is the dual bracing type, increases the journal stirrup on the basis that the former equipment has the lug that hangs by the constant force spring, under non-operating condition, catalyst pipeline and equipment are all normal atmospheric temperature, and the weight of equipment can be supported to the journal stirrup this moment, makes equipment mouth of pipe and catalyst pipeline atress obviously descend, gets rid of it and probably suffers the hidden danger of destruction; under the working state, the catalyst pipeline can expand, the support lug moves upwards along with the catalyst separation hopper at the moment, the support lug is separated from the structural beam, and the catalyst separation hopper is supported by the constant force spring. The double-support structure avoids the problem that the stress of the catalyst pipeline and the equipment nozzle is too large in different states, and simultaneously avoids the damage of the constant force spring and the damage of the catalyst pipeline.

(2) The stress points of the support lugs and the lifting lugs on the framework can root on the same structural beam, so that the number of the structural beams is reduced, and the production cost is reduced.

(3) The utility model discloses the effectual factor of safety that improves equipment and pipeline under different work condition to reduce the maintenance cost in later stage.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention can be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically illustrated below, and the detailed description is given in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic illustration of a conventional continuous reforming catalyst separation hopper support scheme.

Fig. 2 is a schematic view of a support structure of a continuous reforming catalyst separation hopper according to an embodiment of the present invention.

Reference numerals

1-a catalyst separation hopper, 2-a regenerator, 3-a catalyst pipeline, 4-a lifting lug, 5-a constant force spring, 6-a supporting lug and 7-a structural beam.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the objects of the present invention, the following detailed description will be given, in conjunction with the preferred embodiments and the accompanying drawings, with reference to the following detailed description of the catalyst separation hopper supporting structure of a continuous reforming apparatus according to the present invention, its detailed description of the embodiments, structures, features and effects.

Referring to fig. 2, the utility model provides a catalyst separation hopper bearing structure in continuous reforming unit, including catalyst separation hopper 1, regenerator 2, communicate through catalyst pipeline 3 between two equipment, four structural beam 7 of 1 casing outside circumference equipartition of catalyst separation hopper, structural beam 7 lower part and constant force spring 5 fixed connection, constant force spring 5 lower part and lug 4 fixed connection. The support lug 6 is arranged above the structural beam 7, is not welded and fixed with the structural beam 7, and is fixedly connected with the outer side of the shell of the catalyst separation hopper 1.

The lifting lug 4 and the support lug 6 are stressed points on the framework and can root on the same structural beam, the number of the structural beams is reduced, the support lug and the structural beam are not fixed, and the support lug can move freely.

The weight of the catalyst separation hopper is borne by the constant force spring in the working state, and the weight of the catalyst separation hopper is borne by the support lug supported on the structural beam in the maintenance state. The problem of overlarge stress on a catalyst pipeline and an equipment nozzle in different states is solved.

The utility model discloses continuous reforming catalyst separation hopper support scheme. In order to verify the effectiveness of the method, a catalyst separation hopper, a regenerator and a catalyst pipeline between two devices of a certain project are selected as research objects. And comparing the stress conditions of the catalyst pipeline and the equipment nozzle after the supporting scheme of the catalyst separation hopper is changed. The scheme A is set as a scheme that the catalyst separation hopper only uses a constant-force spring lifting lug for supporting, and the scheme B is set as a scheme that the catalyst separation hopper uses a constant-force spring lifting lug and a support lug for supporting. Adopting international pipeline stress calculation software CAESARII as a calculation tool, analyzing the two arrangement schemes, and obtaining the following results: 1. under the working state, the stress results of the two supporting schemes are the same; 2. under the maintenance state, the stress of the scheme B is obviously reduced relative to the scheme A. The calculation result shows that after the support lugs are added to the catalyst separation hopper, the stress of the catalyst pipeline and the equipment nozzle in the working state is not influenced, the newly added support lugs in the equipment in the maintenance state can effectively bear the change of the weight of the equipment, the stress of the catalyst pipeline and the equipment nozzle is reduced, and the safety coefficient is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical spirit of the present invention without departing from the technical scope of the present invention.

Claims

1. The utility model provides a catalyst separation hopper bearing structure among continuous reforming apparatus, includes lug (4), constant force spring (5), structure roof beam (7), and four lugs (4) set up in the casing outside of catalyst separation hopper, and structure roof beam (7) are located the top of corresponding lug (4), the lower extreme and lug (4) of constant force spring (5) are connected, upper end and structure roof beam (7) rigid coupling, its characterized in that: the device also comprises four support lugs (6), and when the catalyst separation hopper is in a non-working state, the support lugs (6) are placed on the structural beam (7).

2. The support structure of a catalyst separation hopper in a continuous reforming apparatus according to claim 1, wherein: the support lug (6) is fixedly connected with the outer side of the catalyst separation hopper shell through welding or integral casting.

3. The support structure of a catalyst separation hopper in a continuous reforming apparatus according to claim 1, wherein: the support lug (6) is of a stud structure.