Flange cover structure of a hydrogenation reactor

Abstract

The application discloses a flange cover structure of a hydrogenation reactor and relates to the technical field of flange covers. The flange cover structure comprises a flange cover main body, a pressure relief port is arranged in the middle of the flange cover main body, a pressure relief valve is fixed to the outer side of the flange cover main body at the pressure relief port, a pressure relief cover is assembled to the inner side of the flange cover main body at the pressure relief port, the flange cover main body is fixed to the reactor flange plate of the hydrogenation reactor through the flange cover butt joint flange plate after being butted to the reactor flange plate, the flange cover butt joint flange plate is provided with a first annular inflation cavity, the reactor flange plate is provided with a second annular inflation cavity, and an annular inflation pipe is assembled in the first annular inflation cavity and the second annular inflation cavity. The application is mainly used for the protection of the flange plate of the hydrogenation reactor, the sealing performance of the flange cover is better than that of the traditional flange cover, the pressure relief is convenient, and the safety of the hydrogenation reactor is improved to a great extent.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of flange covers, in particular to a flange cover structure of a hydrogenation reactor. BACKGROUND

[0002] The hydrogenation reactor is a very important device in an organic chemical laboratory and an actual production process, can be used as a container for hydrogenation reaction, and can also be used in occasions where liquid and gas need to be fully mixed. The flange cover is used for protecting the flange plate during transportation of the hydrogenation reactor.

[0003] The existing flange plate is mainly assembled and fixed with the flange plate through cooperation of the bolt and the nut. In order to improve the sealing performance, a sealing gasket is additionally arranged at the gap of the flange plate. However, when the hydrogenation reactor is in a high-pressure state, the sealing performance of the flange cover cannot be guaranteed, and hydrogen is active and unstable. Once the sealing performance is poor, a safety accident can be easily caused. SUMMARY

[0004] The application aims at solving the problems in the background art and provides a flange cover structure of a hydrogenation reactor.

[0005] In order to achieve the above-mentioned purpose, the application provides the following technical scheme.

[0006] The flange cover structure of the hydrogenation reactor comprises a flange cover body, a pressure relief port is arranged in the middle of the flange cover body, and a pressure relief valve is arranged at the pressure relief port.

[0007] The end of the pressure relief valve is fixed with a ring-shaped sliding seat, the ring-shaped sliding seat is assembled with a rotatable pressure relief switch through a ring-shaped sliding rail, the outer side of the pressure relief switch is fixed with a rotating disc, the outer side of the pressure relief switch is also penetrated and engaged with two mutually symmetrical butterfly head jackscrews, the inner side of the pressure relief switch is engaged with a pressure relief pipe through threads, and the pressure relief pipe can extend into the pressure relief port.

[0008] The inner side of the flange cover body is assembled with a pressure relief cover at the pressure relief port, the edge of the pressure relief cover is penetrated and assembled with a guide shaft fixed on the flange cover body, the end of the guide shaft is fixed with a spring stopper, and the guide shaft is nested with a first spring.

[0009] The edge of the flange cover body is provided with a flange cover butt flange, the flange cover body is fixed by the joint engagement of bolts and nuts uniformly distributed at multiple positions after the flange cover butt flange is butted with the reactor butt flange of the hydrogenation reactor, the contact part between the flange cover butt flange and the reactor butt flange is covered by a sealing gasket, a first annular inflation cavity is arranged on the surface of the flange cover butt flange, a second annular inflation cavity is arranged on the surface of the reactor butt flange, and an annular inflation pipe is jointly arranged in the first annular inflation cavity and the second annular inflation cavity, and the annular inflation pipe is penetrated and butted with an inflation nozzle towards the hydrogenation reactor;

[0010] A plurality of trigger columns uniformly distributed are penetrated and arranged above the first annular inflation cavity, guide blocks symmetrically with each other are fixed on the inside of the trigger column, a guide shaft is penetrated and arranged on the guide blocks, a second spring is nested on the guide shaft, and a prompt head located outside the flange cover body is fixed on the end of the trigger column.

[0011] Preferably, the wire head of the butterfly head top wire can abut to the surface of the annular sliding seat, so that the pressure relief switch is fixed.

[0012] Preferably, the pressure relief pipe is hollow inside, and openings are arranged on the upper and lower ends of the pressure relief pipe.

[0013] Preferably, under the elastic action of a plurality of first springs, the pressure relief cover can always abut to the pressure relief cover to completely block the pressure relief opening.

[0014] Preferably, the annular inflation pipe is a flexible pipe, under the high pressure condition in the hydrogenation reactor, the annular inflation pipe can be inflated, and the inflated annular inflation pipe can completely fill the first annular inflation cavity and the second annular inflation cavity.

[0015] Preferably, when the annular inflation pipe is not inflated, under the elastic action of the second spring, the trigger column is always located in the first annular inflation cavity and the second annular inflation cavity, and at this time, the indicating head is in a descending state.

[0016] Preferably, when the annular inflation pipe is inflated, the annular inflation pipe can abut to push the trigger column to overcome the elastic action of the second spring, and at this time, the indicating head is in a rising state.

[0017] Compared with the prior art, the beneficial effects of the application are:

[0018] The application is a flange cover structure of a hydrogenation reactor, mainly used for the protection of the flange plate of the hydrogenation reactor, and has better sealing performance than the traditional flange cover, is convenient for pressure relief, and greatly improves the safety of the hydrogenation reactor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the front view structure of the present application;

[0020] Figure 2 is a schematic diagram of the top view structure of the present application;

[0021] Figure 3 is a schematic diagram of the bottom view structure of the present application;

[0022] Figure 4 is a schematic diagram of the bottom view structure of the flange cover butting against the flange plate in the present application;

[0023] Figure 5 is a schematic diagram of the top view structure of the reactor butting against the flange plate in the present application;

[0024] Figure 6 is a schematic diagram of the internal structure of Figure 1 ;

[0025] Figure 7 is a schematic diagram of the internal structure of Figure 6 ;

[0026] Figure 8 is a schematic diagram of the internal structure of Figure 6 .

[0027] In the figure: 1-flange cover body; 2-pressure relief port; 3-pressure relief valve; 4-ring type sliding seat; 5-ring type sliding rail; 6-pressure relief switch; 7-rotary disc; 8-butterfly head top wire; 9-pressure relief pipe; 10-pressure relief cover; 11-guiding shaft; 12-spring stopper; 13-first spring; 14-flange cover butting against flange plate; 15-hydrogenation reactor; 16-reactor butting against flange plate; 17-bolt; 18-nut; 19-sealing gasket; 20-first ring type inflation cavity; 21-second ring type inflation cavity; 22-ring type inflation pipe; 23-inflation nozzle; 24-triggering column; 25-guiding block; 26-guiding shaft; 27-second spring; 28-prompting head. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. DETAILED DESCRIPTION

[0030] Please refer to Figures 1-8 , the present application provides a technical solution:

[0031] The flange cover structure of a hydrogenation reactor comprises a flange cover body 1, a pressure relief port 2 is provided through the middle of the flange cover body 1.

[0032] The outer side of the flange cover body 1 is fixed with a pressure relief valve 3 at the pressure relief port 2, the end of the pressure relief valve 3 is fixed with a ring type sliding seat 4, the ring type sliding seat 4 is assembled with a rotatable pressure relief switch 6 through a ring type sliding rail 5, the outer side of the pressure relief switch 6 is fixed with a rotating disc 7, the outer side of the pressure relief switch 6 is also penetrated by two mutually symmetrical butterfly head top wires 8, the inner side of the pressure relief switch 6 is threaded with a pressure relief pipe 9, and the pressure relief pipe 9 can extend into the pressure relief port 2.

[0033] The inner side of the flange cover body 1 is assembled with a pressure relief cover 10 at the pressure relief port 2, the edge of the pressure relief cover 10 is penetrated and assembled on the guide shaft 11 fixed on the flange cover body 1, the end of the guide shaft 11 is fixed with a spring stopper 12, and the guide shaft 11 is nested with a first spring 13.

[0034] The edge of the flange cover body 1 is provided with a flange cover butt flange plate 14, and the flange cover body 1 is butt jointed with a reactor butt flange plate 16 of a hydrogenation reactor 15 through the flange cover butt flange plate 14, and is fixed under the joint engagement of a plurality of uniformly distributed bolts 17 and nuts 18, the contact part between the flange cover butt flange plate 14 and the reactor butt flange plate 16 is covered with sealing pads 19, a first ring type inflation cavity 20 is opened on the surface of the flange cover butt flange plate 14, a second ring type inflation cavity 21 is opened on the surface of the reactor butt flange plate 16, and a ring type inflation pipe 22 is jointly assembled in the first ring type inflation cavity 20 and the second ring type inflation cavity 21, and the ring type inflation pipe 22 is penetrated and butt jointed with an inflation nozzle 23 towards the hydrogenation reactor 15.

[0035] The upper part of the first ring type inflation cavity 20 is penetrated and assembled with a plurality of uniformly distributed trigger columns 24, the inside of the trigger column 24 is fixed with mutually symmetrical guide blocks 25 on both sides, the guide blocks 25 are penetrated and assembled with guide shafts 26, the guide shafts 26 are also nested with second springs 27, and the end of the trigger column 24 is fixed with a prompt head 28 located on the outer side of the flange cover body 1.

[0036] In the above, the wire head of the butterfly head top wire 8 can abut to the surface of the ring type sliding seat 4, so that the pressure relief switch 6 is fixed.

[0037] In the above, the pressure relief pipe 9 is hollow inside, and openings are opened on the upper and lower ends.

[0038] In the above, the pressure relief cover 10 can always abut to the pressure relief cover 10 to completely block the pressure relief port 2 under the elastic action of a plurality of first springs 13.

[0039] In the above, the ring-shaped inflation pipe 22 is a hose, which can be inflated under high pressure in the hydrogenation reactor 15, and the inflated ring-shaped inflation pipe 22 can completely fill the first and second ring-shaped inflation cavities 20 and 21.

[0040] In the above, the ring-shaped inflation pipe 22, when not inflated, pushes the trigger column 24 to be always located in the first and second ring-shaped inflation cavities 20 and 21 under the elastic action of the second spring 27, and the indicating head 28 is in a lowered state.

[0041] In the above, when the ring-shaped inflation pipe 22 is inflated, the ring-shaped inflation pipe 22 can abut the trigger column 24 to overcome the elastic action of the second spring 27, and the indicating head 28 is in a raised state.

[0042] Working principle of the application:

[0043] In assembly, the ring-shaped inflation pipe 22 is placed in the second ring-shaped inflation cavity 21 on the surface of the reactor flange 16, and the flange cover is fixed after the flange flange 14 is butted against the reactor flange 16 under the joint engagement of the bolt 17 and the nut 18.

[0044] In the reaction of the hydrogenation reactor 15, high-pressure gas in the reactor can be filled into the ring-shaped inflation pipe 22 from the inflation nozzle 23, so that the ring-shaped inflation pipe 22 is filled, and the inflated ring-shaped inflation pipe 22 can completely fill the first and second ring-shaped inflation cavities 20 and 21, thereby blocking the joint between the flange cover flange 14 and the reactor flange 16, greatly improving the sealing performance. Moreover, with the pressurization in the hydrogenation reactor 15, the ring-shaped inflation pipe 22 is also pressurized to be more full, and the effect of filling the first and second ring-shaped inflation cavities 20 and 21 is better, and the safety is better.

[0045] In the pressure relief, the butterfly head top wire 8 for tightening the pressure relief switch 6 is loosened, and the pressure relief switch 6 can be rotated at this time. By operating the rotary disc 7, the pressure relief switch 6 is rotated, and under the action of the screw thread, the pressure relief pipe 9 can be lifted and lowered based on the ring-shaped sliding rail 5. After the pressure relief pipe 9 is lifted and lowered, it abuts against the pressure relief cover 10, and at this time, the first spring 13 is compressed, the pressure relief port 2 is opened, and the pressure relief in the hydrogenation reactor 15 can be completed.

[0046] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the application.

Claims

1. A flange cover structure of a hydrogenation reactor, characterized by, Including flange cover body (1), the middle of flange cover body (1) is provided with pressure relief port (2) through; The outer side of flange cover body (1) is fixed with pressure relief valve (3) at pressure relief port (2), the end of pressure relief valve (3) is fixed with ring type sliding seat (4), the rotatable pressure relief switch (6) is assembled on ring type sliding seat (4) through ring type sliding rail (5), the outer side of pressure relief switch (6) is fixed with rotating disc (7), the outer side of pressure relief switch (6) is also penetrated and engaged with two mutually symmetrical butterfly head top silk (8), the inner side of pressure relief switch (6) is engaged with pressure relief pipe (9) through screw thread, pressure relief pipe (9) can be inserted into pressure relief port (2). The inner side of flange cover body (1) is assembled with pressure relief cover (10) at pressure relief port (2), the edge of pressure relief cover (10) is penetrated and assembled on guide shaft (11) fixed on flange cover body (1), the end of guide shaft (11) is fixed with spring stop head (12), the first spring (13) is nested on guide shaft (11). The edge of flange cover body (1) is provided with flange cover butt joint flange plate (14), the reactor butt joint flange plate (16) of hydrogenation reactor (15) is butt jointed after flange cover body (1) is butt jointed with reactor butt joint flange plate (16) through flange cover butt joint flange plate (14), and it is fixed under the joint engagement of uniformly distributed bolt (17) and nut (18), the contact part between flange cover butt joint flange plate (14) and reactor butt joint flange plate (16) is all covered with sealing gasket (19), the surface of flange cover butt joint flange plate (14) is provided with first ring type inflation cavity (20), the surface of reactor butt joint flange plate (16) is provided with second ring type inflation cavity (21), ring type inflation pipe (22) is jointly assembled in first ring type inflation cavity (20) and second ring type inflation cavity (21), inflation nozzle (23) is butt jointed through ring type inflation pipe (22) towards hydrogenation reactor (15); The upper portion of first ring type inflation cavity (20) is penetrated and assembled with multiple uniformly distributed trigger columns (24), the inside of trigger column (24) is fixed with mutually symmetrical guide block (25) on both sides, guide block (25) is penetrated and assembled on guide shaft (26), second spring (27) is also nested on guide shaft (26), the end of trigger column (24) is fixed with prompt head (28) on the outside of flange cover body (1).

2. The flange cover structure of a hydrogenation reactor according to claim 1, characterized by: The silk head of butterfly head top silk (8) can abut to the surface of ring type sliding seat (4), so that the pressure relief switch (6) is fixed.

3. The flange cover structure of a hydrogenation reactor according to claim 1, characterized by: The inside of pressure relief pipe (9) is hollow, and the upper and lower ends are provided with openings.

4. The flange cover structure of a hydrogenation reactor according to claim 1, characterized by: Under the elastic action of multiple first springs (13), pressure relief cover (10) can always abut to pressure relief cover (10) to completely block pressure relief port (2).

5. The flange cover structure of a hydrogenation reactor according to claim 1, characterized by: The ring-shaped inflation pipe (22) is a hose, which can complete inflation under high pressure in the hydrogenation reactor (15), and the inflated ring-shaped inflation pipe (22) can completely fill the first ring-shaped inflation cavity (20) and the second ring-shaped inflation cavity (21).

6. The flange cover structure of a hydrogenation reactor according to claim 1 or 5, characterized by: When the ring-shaped inflation pipe (22) is not inflated, the elastic action of the second spring (27) pushes the trigger column (24) to always be located in the first ring-shaped inflation cavity (20) and the second ring-shaped inflation cavity (21), at this time, the prompt head (28) is in a lowered state.

7. The flange cover structure of a hydrogenation reactor according to claim 1 or 5, characterized by: When the ring-shaped inflation pipe (22) is inflated, the ring-shaped inflation pipe (22) can abut and push the trigger column (24) to overcome the elastic action of the second spring (27), at this time, the prompt head (28) is in a raised state.

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