CN219599162U

CN219599162U - Sand blasting positioning fixture for tubular reactor

Info

Publication number: CN219599162U
Application number: CN202320612585.7U
Authority: CN
Inventors: 种明军; 卞家龙; 唐景毅
Original assignee: Nanjing Yuanqian Chemical Equipment Installation Engineering Co ltd
Current assignee: Nanjing Yuanqian Chemical Equipment Installation Engineering Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-08-29
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a sand blasting positioning fixture for a tubular reactor, which comprises the following components: the device comprises a positioning part, a clamping part, a connecting sleeve and a spray pipe; the positioning part is connected with the clamping part, and the clamping part is detachably connected with the spray pipe; the utility model provides a sand blasting positioning fixture for a tubular reactor, which is convenient to assemble and disassemble, smooth to move, ensures coaxiality and further improves cleaning effect.

Description

Sand blasting positioning fixture for tubular reactor

Technical Field

The utility model relates to the field of chemical reaction equipment, in particular to a sand blasting positioning fixture for a tubular reactor.

Background

The tube type reactor is also called a tube type reactor. A fixed-bed reactor for the catalyst in the tubes is composed of tube bundle, shell and two end plugs. The heat required by the reaction is provided by adopting flue gas, high-temperature steam and the like outside the tube array, or the heat released by the reaction is removed by adopting molten salt heat conduction oil, water and the like, so that the reaction temperature is maintained. It is often used for strong exothermic reactions, strong endothermic reactions, etc.

The inner wall of the reaction tube needs to be cleaned before the catalyst is filled, especially after the reaction. The existing cleaning comprises the preliminary cleaning by using the through bars and the cleaning of the inner wall of the reaction tube by sand blasting.

The following drawbacks are encountered when cleaning with sandblasting:

1. because the tube side is different in length and the tube side is arranged in a plurality of long tube sides, the tail end or the bottom of the tube side is obviously cleaned without effect during sand blasting, the longer the tube side is, the worse the effect is, the bottom operation is difficult in the existing mode, and the danger is extremely high;

2. the spray pipe of sandblast needs to be coaxial with the reaction tube just even with the clearance on the reaction tube inner wall like this, directly say that the spray pipe is plugged into the reaction tube among the prior art and is cleared up, therefore the pipe wall clearance effect that the spray pipe is close to is good, and the pipe wall clearance effect that the spray pipe is kept away from is poor.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide the sand blasting positioning clamp for the tubular reactor, which is convenient to assemble and disassemble, smooth to move, ensures coaxiality and further improves the cleaning effect.

According to one aspect of the present utility model, there is provided a tube array reactor sand blast positioning jig comprising: the device comprises a positioning part, a clamping part, a connecting sleeve and a spray pipe;

the positioning part is connected with the clamping part, and the clamping part is detachably connected with the spray pipe;

the positioning part, the clamping part, the connecting sleeve and the spray pipe are coaxially arranged. The spray pipe and the reaction tube are ensured to be coaxial through the clamping part, the spray pipe can move in the reaction tube conveniently through the positioning part, and the effect of cleaning the inner wall of the reaction tube through the spray pipe is ensured through the arrangement.

In some embodiments, the positioning portion includes: the coaxial driving assembly is connected with the first sleeve and the second sleeve, the bottom of the coaxial driving assembly is fixedly connected with the second sleeve, the top of the coaxial driving assembly is propped against the first sleeve, and the central shafts of the coaxial driving assembly and the second sleeve are consistent. The coaxial driving assembly is utilized to ensure that the second sleeve is coaxial with the first sleeve, and further ensure that the second sleeve is coaxial with the reaction tube.

In some embodiments, the coaxial drive assembly comprises: the connecting hole is formed in the first sleeve, the bottom of the spring is fixedly connected with the outer wall of the second sleeve, and the spring drives the ball to be arranged in the connecting hole and extend out of the outer wall of the first sleeve. The spring is used for driving the second sleeve and the first sleeve simultaneously to ensure that the second sleeve is coaxial with the first clearance, and the ball rolls on the inner wall of the reaction tube, so that the spray tube moves more smoothly during sand blasting.

In some embodiments, the connecting hole is a circular arc hole. The circular arc holes are utilized to facilitate the rolling of the balls.

In some embodiments, the coaxial drive assembly is provided in plurality. The second sleeve is conveniently supported by a plurality of coaxial drive assemblies.

In some embodiments, the clamping portion includes at least 3 driving members, the driving members are disposed on an inner wall of the second sleeve and distributed in an annular array with an axis of the second sleeve as a center, and output ends of the driving members are provided with connecting sleeves. The clamping part is used for fixing the spray pipe and simultaneously ensuring that the spray pipe is coaxial with the second sleeve.

In some embodiments, the clamping portion is provided with at least 2 clamping portions, which clamp or unclamp the spout. At least 2 clamping parts are convenient for guaranteeing the fixed stability of the spray pipe.

In some embodiments, the driving member drives the connecting sleeve to close and clamp the spray pipe, and the driving member drives the connecting sleeve to separate and loosen the spray pipe. The driving piece is used for controlling the clamping or loosening of the spray pipe.

Compared with the prior art, the utility model has the beneficial effects of convenient assembly and disassembly, smooth movement, coaxiality assurance and further improvement of cleaning effect; the clamping part ensures that the spray pipe is coaxial with the reaction tube, the spray pipe can conveniently move in the reaction tube through the positioning part, and the effect of cleaning the inner wall of the reaction tube through the arrangement of the clamping part is ensured; the coaxial driving assembly is utilized to ensure that the second sleeve is coaxial with the first sleeve, and further ensure that the second sleeve is coaxial with the reaction tube; the ball rolls on the inner wall of the reaction tube, so that the spray tube moves more smoothly during sand blasting; the clamping part is used for fixing the spray pipe and simultaneously ensuring that the spray pipe is coaxial with the second sleeve.

Drawings

FIG. 1 is a schematic view of the structure of a sand blasting positioning fixture of a tubular reactor of the present utility model;

FIG. 2 is a transverse cross-sectional view of a tubulation reactor grit blast positioning fixture of the present utility model;

FIG. 3 is a schematic view of the structure of the positioning part of the sand blasting positioning fixture of the tubular reactor of the present utility model;

fig. 4 is a schematic structural view of a clamping portion of the sand blasting positioning jig for a tube array reactor according to the present utility model.

Detailed Description

The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the utility model, and equivalent changes or substitutions of functions, methods or structures according to the embodiments by those skilled in the art are included in the scope of the present utility model.

In the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other between two elements, may be directly connected, or may be indirectly connected through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to circumstances.

As shown in fig. 1 and 2, the sand blasting positioning fixture for a tubular reactor according to the present utility model comprises: the device comprises a positioning part 1, a clamping part 2, a connecting sleeve 3 and a spray pipe 4;

the positioning part 1 is connected with the clamping part 2, and the clamping part 2 is detachably connected with the spray pipe 4;

the positioning part 1, the clamping part 2, the connecting sleeve 3 and the spray pipe 4 are coaxially arranged.

In essence, the technical point of solving the problem of poor cleaning effect of the two ends and the inner wall of the reaction tube is to ensure that the nozzle 4 moves to the bottom of the reaction tube smoothly and coaxially with the reaction tube. The spray pipe 4 and the reaction tube are ensured to be coaxial through the clamping part 2, the spray pipe is convenient to move in the reaction tube through the positioning part 1, and the effect of cleaning the inner wall of the reaction tube through the spray pipe 4 is ensured through such arrangement.

As shown in fig. 3, the positioning portion 1 includes: the coaxial driving device comprises a first sleeve 11, a second sleeve 12 and a coaxial driving assembly 13, wherein the second sleeve 12 is arranged in the first sleeve 11, the coaxial driving assembly 13 is connected with the first sleeve 11 and the second sleeve 12, the bottom of the coaxial driving assembly 13 is fixedly connected with the second sleeve 12, the top of the coaxial driving assembly 13 abuts against the first sleeve 11, and the coaxial driving assembly 13 drives the second sleeve 12 to be consistent with the central shaft of the first sleeve 11. The coaxial drive assembly 13 is used to ensure that the second sleeve 12 is coaxial with the first sleeve 11 and further ensure that the second sleeve 12 is coaxial with the reaction tube.

The first sleeve 11 and the second sleeve 12 are supported while the coaxial drive assembly 13 is being performed such that the central axes of the first sleeve 11 and the second sleeve 12 coincide. It should be noted that the coaxial driving assembly 13 is symmetrically arranged between the first sleeve 11 and the second sleeve 12, so as to ensure that the pushing force of the coaxial driving assembly 13 is consistent, and further ensure that the central axes of the first sleeve 11 and the second sleeve 12 are consistent.

The coaxial drive assembly 13 includes: the spring 14, the ball 15 and the connecting hole 16, the connecting hole 16 is arranged on the first sleeve 11, the bottom of the spring 14 is fixedly connected with the outer wall of the second sleeve 12, and the spring 14 drives the ball 15 to be arranged in the connecting hole 16 and extend out of the outer wall of the first sleeve 11. The spring 14 is used for driving the second sleeve 12 and the first sleeve 11 simultaneously, so that the second sleeve 12 and the first sleeve are coaxial, and the ball 15 rolls on the inner wall of the reaction tube, so that the spray tube 4 moves more smoothly during sand blasting.

The connection hole 16 is a circular arc hole. The rolling of the balls 15 is facilitated by the circular arc holes. The top of the ball 15 protrudes out of the top of the connecting hole 16 to be in contact with the inner wall of the reaction tube, and

the coaxial drive assembly 13 is provided in plurality. The second sleeve 12 is conveniently supported by a plurality of coaxial drive assemblies 13. The number of coaxial drive assemblies 13 is related to the length of the lance 4, typically no less than 2 coaxial drive assemblies 13, with longer lances 4 corresponding to more coaxial drive assemblies 13.

As shown in fig. 4, the clamping part 2 includes at least 3 driving members 21, the driving members 21 are disposed on the inner wall of the second sleeve 12 and distributed in an annular array with the axis of the second sleeve 12 as the center, and the output end of the driving member 21 is provided with a connecting sleeve 3. The nozzle 4 is secured by the clamping part 2 while ensuring that the nozzle 4 is coaxial with the second sleeve 12.

The clamping parts 2 are provided with at least 2, and the clamping parts 2 clamp or unclamp the spray pipe 4. At least 2 clamping portions 2 are convenient for ensuring the fixing stability of the spray pipe 4.

The driving piece 21 drives the connecting sleeve 3 to be closed to clamp the spray pipe 4, and the driving piece 21 drives the connecting sleeve 3 to be separated to release the spray pipe 4. The clamping or unclamping of the spout 4 is controlled by means of the driving member 21. Adjusting the position of the nozzle 4 by the driving member 21 clamps the nozzle 4 when the nozzle 4 performs blasting. Defining the position of the spout 4.

The driving member 21 is a cylinder and when the driving member 21 clamps the nozzle 4. Meanwhile, the connecting sleeve 3 has a concave radian so as to have a larger contact area with the spray pipe 4.

While only certain embodiments of the present utility model have been described, it will be apparent to those skilled in the art that other modifications and improvements can be made without departing from the inventive concept of the present utility model.

Claims

1. Tubulation formula reactor sand blasting positioning fixture, its characterized in that includes: the device comprises a positioning part, a clamping part, a connecting sleeve and a spray pipe;

the positioning part is connected with a clamping part, and the clamping part is detachably connected with the spray pipe;

the positioning part, the clamping part, the connecting sleeve and the spray pipe are coaxially arranged.

2. The shell and tube reactor blast positioning fixture of claim 1, wherein the positioning portion comprises: the coaxial driving device comprises a first sleeve, a second sleeve and a coaxial driving assembly, wherein the second sleeve is arranged in the first sleeve, the coaxial driving assembly is connected with the first sleeve and the second sleeve, the bottom of the coaxial driving assembly is fixedly connected with the second sleeve, the top of the coaxial driving assembly is propped against the first sleeve, and the central shafts of the second sleeve and the first sleeve are consistent through the coaxial driving assembly.

3. The shell and tube reactor grit blast positioning fixture of claim 2, wherein the coaxial drive assembly comprises: the spring, ball and connecting hole, the connecting hole sets up on first sheathed tube, the outer wall of the bottom fixed connection second sheathed tube of spring, spring drive ball is arranged in the connecting hole and is stretched out first sheathed tube outer wall.

4. A shell and tube reactor grit blast positioning fixture as in claim 3, wherein said attachment holes are circular arc holes.

5. A shell and tube reactor grit blast positioning fixture as in any one of claims 2 to 4, wherein said coaxial drive assembly is provided in plurality.

6. The tube array reactor sand blasting positioning fixture as claimed in claim 1, wherein the clamping part comprises at least 3 driving parts, the driving parts are arranged on the inner wall of the second sleeve and distributed in an annular array with the axis of the second sleeve as a center, and the output ends of the driving parts are provided with connecting sleeves.

7. A shell and tube reactor grit blast positioning fixture as in claim 6, wherein said clamping sections are provided with at least 2 clamping sections which clamp or unclamp the nozzle.

8. A shell and tube reactor grit blast positioning fixture as in any one of claims 6 or 7, wherein the drive member drives the connection sleeve to close and clamp the nozzle, and wherein the drive member drives the connection sleeve to separate and unclamp the nozzle.