Pressure relief device of hydrogenation reactor

Abstract

The utility model relates to the technical field of hydrogenation reactors, and discloses a pressure relief device of a hydrogenation reactor, which comprises a reactor body and a sealing cover, the sealing cover is fixedly arranged at the top of the reactor body, the bottom of the sealing cover is fixedly provided with a pressure relief hierarchical cylinder for pressure relief, and the pressure relief hierarchical cylinder is provided with a pressure relief valve. The pressure relief hierarchical cylinder is integrally arranged in a multi-layer mode, a pressure measuring valve meter used for detecting the internal pressure of the reactor body is fixedly installed on one side of the top of the sealing cover, and the device further comprises a pressure relief assembly. During use, the temperature and pressure in the hydrogenation reactor can be adjusted according to actual use requirements, so that the hydrogenation reactor can be conveniently used during processing of different substances in the hydrogenation reactor, and the hydrogenation reactor is more convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation reactors, in particular to a pressure relief device for a hydrogenation reactor. Background Art

[0002] The hydrogenation reactor is a very important equipment in organic chemistry laboratories and actual production processes. It can not only be used as a container for hydrogenation reactions, but also can be used in situations where liquids and gases need to be fully mixed. The hydrogenation reactor has a wide range of uses in chemical pharmaceuticals and can be used as a basic equipment for product development, organic chemicals and pharmaceutical research. It can also be used to quantitatively analyze the activity of catalysts in industrial processes. During the use of the hydrogenation reactor, the pressure of the container will increase. Before reaching the limit value of the pressure vessel, it is necessary to release the pressure through a pressure relief device.

[0003] At present, most hydrogenation reactors on the market are equipped with pressure relief devices for emergency pressure relief when the pressure exceeds the safety threshold. However, this pressure relief method has obvious limitations. First, it can only be activated when the pressure reaches the upper threshold, and it cannot respond promptly to slight changes in the pressure inside the hydrogenation reactor. Secondly, due to the differences in the reactants inside the hydrogenation reactor, the pressure and temperature requirements during production are also different. Traditional pressure relief devices cannot meet such diverse needs. In order to solve the above problems, during use, the temperature and pressure inside the hydrogenation reactor can be adjusted according to actual use requirements, which is convenient for the use when processing different substances inside the hydrogenation reactor. For this reason, we propose a pressure relief device for a hydrogenation reactor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a pressure relief device for a hydrogenation reactor, which solves the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure relief device for a hydrogenation reactor, comprising a reactor body and a closing cover, wherein the closing cover is fixedly mounted on the top of the reactor body, a pressure relief level cylinder for pressure relief is fixedly mounted on the bottom of the closing cover, the pressure relief level cylinder is arranged in multiple levels as a whole, a pressure measuring valve gauge for detecting the internal pressure of the reactor body is fixedly mounted on one side of the top of the closing cover, and further comprising:

[0008] A pressure relief component, which is arranged inside the pressure relief layer cylinder and is used to adjust the pressure and temperature inside the reactor body;

[0009] The pressure relief level cylinders are, from bottom to top, cylinders, pressure relief cone cylinders, connecting cylinders and aggregate cone cylinders. The above structures are fixedly installed together, and a partition for separation is fixedly installed at the connection between the pressure relief cone cylinder and the connecting cylinder.

[0010] The pressure relief assembly includes a driving rod, a pressure relief plug 1 and a pressure relief plug 2. The driving rod is arranged inside the pressure relief level cylinder. One end of the driving rod passes through the pressure relief level cylinder and the closing cover and is fixedly connected to the output end of the hydraulic cylinder. The other end of the driving rod is fixedly installed with a pressure relief plug 1, and the middle section of the outer wall of the driving rod is fixedly installed with a pressure relief plug 2.

[0011] Preferably, the bottom of the pressure relief level cylinder and the partition installed in the middle section are provided with slots matching the positions of the pressure relief plugs 1 and 2 corresponding to them.

[0012] Preferably, a pressure relief reflux pipe for pressure relief is fixedly mounted on one side of the top of the pressure relief stage cylinder, and the pressure relief reflux pipe penetrates the closing cover and extends to one end outside the closing cover, and a ball valve is rotatably mounted inside the pipe.

[0013] Preferably, a sealed cavity tube for sealing is fixedly installed at a position corresponding to the driving rod on the top of the inner wall of the pressure relief stage cylinder.

[0014] Preferably, a sealing edge for strengthening the sealing is fixedly installed at the bottom of the pressure relief plug 1, and an engaging groove corresponding to the sealing edge is provided at the bottom of the pressure relief level cylinder at a position corresponding to the sealing edge.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a pressure relief device for a hydrogenation reactor, which has the following beneficial effects:

[0017] 1. The pressure relief device of the hydrogenation reactor, through the setting of the pressure relief layered cylinder, after the pressure enters the interior of the cylinder through the notch, it will continue to rise, and the first buffering is performed through the setting of the pressure relief cone to reduce its impact force, and then the driving rod is lifted to drive the pressure relief plug 1 to rise, and the reactor body is synchronously raised by the pressure relief plug 2. After the pressure relief plug 1 closes the notch, the pressure relief plug 2 just leaves the notch opened on the partition, thereby opening the connection between the cylinder and the pressure relief cone. At this time, the pressure inside the pressure relief cone is buffered by the secondary rise of hydrogen, and the pressure inside the reactor body can be vented and buffered when in use to avoid damage caused by excessive impact force.

[0018] 2. The pressure relief device of the hydrogenation reactor, after the driving rod is squeezed by the hydraulic cylinder to drive the pressure relief plug 1 downward, the pressure relief plug 1 will leave the slot, and at the same time, the pressure relief plug 2 will seal the slot opened on the partition under the drive of the driving rod. At this time, the pressure inside the reactor body will rush into the interior of the pressure relief level cylinder through the slot at the bottom of the pressure relief level cylinder. After observing that the pressure on the pressure measuring valve gauge reaches the normal point, the driving rod can be lifted by starting the hydraulic cylinder, and the pressure relief plug 1 is driven by the driving rod to re-seal the slot at the bottom of the pressure relief level cylinder. At this time, the pressure relief plug 2 fixedly installed on the driving rod will leave the slot opened on the partition again, thereby opening the connection between the pressure relief cone and the connecting cylinder. At this time, the pressure will expand inside the entire pressure relief level cylinder, thereby completing the pressure relief work, which is convenient and quick to use.

[0019] 3. The pressure relief device of the hydrogenation reactor is provided with a pressure relief reflux pipe and a ball valve. When it is necessary to discharge the pressure inside the pressure relief level cylinder, it is only necessary to turn the ball valve to open the connection between the pressure relief reflux pipe and the pressure relief level cylinder. The pressure inside the pressure relief level cylinder and the hydrogen are discharged and sprayed out through the pressure relief reflux pipe. After the pressure relief is completed, the ball valve can be turned again to seal it, which is more convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the pressure relief layer cylinder of the utility model;

[0023] Figure 4 It is a schematic diagram of the change of the operating structure of the utility model.

[0024] In the figure: 1. Reactor body; 2. Closing cover; 3. Pressure relief level cylinder; 4. Pressure measuring valve gauge; 5. Cylinder; 6. Pressure relief cone cylinder; 7. Connecting cylinder; 8. Polymerization cone cylinder; 9. Driving rod; 10. Pressure relief plug 1; 11. Pressure relief plug 2; 12. Notch; 13. Pressure relief reflux pipe; 14. Ball valve; 15. Sealed cavity tube; 16. Sealing edge; 17. Fitting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 A pressure relief device for a hydrogenation reactor comprises a reactor body 1 and a closing cover 2, wherein the closing cover 2 is fixedly mounted on the top of the reactor body 1, a pressure relief level cylinder 3 for pressure relief is fixedly mounted on the bottom of the closing cover 2, the pressure relief level cylinder 3 is a multi-level arrangement as a whole, a pressure measuring valve 4 for detecting the internal pressure of the reactor body 1 is fixedly mounted on one side of the top of the closing cover 2, and further comprises:

[0027] A pressure relief component, which is arranged inside the pressure relief layer cylinder 3 and is used to adjust the pressure and temperature inside the reactor body 1;

[0028] The pressure relief level cylinder 3 is composed of a cylinder 5, a pressure relief cone cylinder 6, a connecting cylinder 7 and a polymerizing cone cylinder 8 from bottom to top. The upper structures are fixedly installed together, and a partition for separation is fixedly installed at the connection between the pressure relief cone cylinder 6 and the connecting cylinder 7. Through the setting of the pressure relief level cylinder 3, after the pressure enters the interior of the cylinder 5 through the notch 12, it will continue to rise. The first buffering is performed by the setting of the pressure relief cone cylinder 6 to reduce its impact force. Then, the driving rod 9 is lifted to drive the pressure relief plug 10 to rise, and the pressure relief plug 2 11 of the reactor body 1 rises synchronously. After the pressure relief plug 10 closes the notch 12, the pressure relief plug 2 11 just leaves the notch 12 opened on the partition, thereby opening the connection between the connecting cylinder 7 and the pressure relief cone cylinder 6. At this time, the pressure inside the pressure relief cone cylinder 6 is buffered with the secondary rise of hydrogen. When in use, the pressure inside the reactor body 1 can be vented and buffered to avoid damage caused by excessive impact force.

[0029] The pressure relief assembly includes a driving rod 9, a pressure relief plug 10 and a pressure relief plug 2 11. The driving rod 9 is arranged inside the pressure relief level cylinder 3. One end of the driving rod 9 passes through the pressure relief level cylinder 3 and the closing cover 2 and is fixedly connected to the output end of the hydraulic cylinder. The other end of the driving rod 9 is fixedly installed with a pressure relief plug 10. The middle section of the outer wall of the driving rod 9 is fixedly installed with a pressure relief plug 2 11. After the driving rod 9 is squeezed by the hydraulic cylinder and the pressure relief plug 10 is driven downward, the pressure relief plug 10 will leave the slot 12. At the same time, the pressure relief plug 2 11 blocks the slot 12 opened on the partition under the drive of the driving rod 9. At this time, the reactor body 1 will rush into the interior of the pressure relief layered cylinder 3 through the notch 12 at the bottom of the pressure relief layered cylinder 3. After observing that the pressure on the pressure measuring valve gauge 4 reaches the normal point, the driving rod 9 can be driven to lift by starting the hydraulic cylinder, and the notch 12 at the bottom of the pressure relief layered cylinder 3 can be re-blocked by driving the pressure relief plug 10 through the driving rod 9. At this time, the pressure relief plug 2 11 fixedly installed on the driving rod 9 will leave the notch 12 opened on the partition, thereby opening the connection between the pressure relief cone 6 and the connecting cylinder 7. At this time, the pressure will expand inside the entire pressure relief layered cylinder 3, thereby completing the pressure relief work, which is convenient and quick to use.

[0030] Furthermore, the bottom of the pressure relief level cylinder 3 and the partition installed in the middle thereof are provided with slots 12 which match the positions of the pressure relief plug 1 10 and the pressure relief plug 2 11 .

[0031] Furthermore, a pressure relief reflux pipe 13 for pressure relief is fixedly installed on one side of the top of the pressure relief level cylinder 3. The pressure relief reflux pipe 13 passes through the closing cover 2 and extends to one end outside the closing cover 2, and a ball valve 14 is rotatably installed inside. Through the arrangement of the pressure relief reflux pipe 13 and the ball valve 14, when the pressure inside the pressure relief level cylinder 3 needs to be discharged, it is only necessary to rotate the ball valve 14 to open the connection between the pressure relief reflux pipe 13 and the pressure relief level cylinder 3, and the pressure inside the pressure relief level cylinder 3 and the hydrogen are converted back and discharged through the pressure relief reflux pipe 13. After the pressure relief is completed, it can be sealed by re-rotating the ball valve 14, which is more convenient and quick to use.

[0032] Furthermore, a sealed cavity tube 15 for sealing is fixedly installed at the position of the driving rod 9 on the top of the inner wall of the pressure relief level cylinder 3. The setting of the sealed cavity tube 15 can effectively prevent the pressure inside the pressure relief level cylinder 3 from leaking through the through connection between the driving rod 9 and the top of the pressure relief level cylinder 3 when the driving rod 9 is driven, which is safer.

[0033] Furthermore, a sealing edge 16 for strengthening the seal is fixedly installed at the bottom of the pressure relief plug 10, and a corresponding fitting groove 17 is opened at the position of the sealing edge 16 at the bottom of the pressure relief level cylinder 3.

[0034] Instructions

[0035] When it is necessary to perform pressure relief operation on the inside of the reactor body 1, by starting the hydraulic cylinder, the driving rod 9 is squeezed by the hydraulic cylinder, and the pressure relief plug 10 is driven downward, and the pressure relief plug 10 will leave the slot 12. At the same time, the pressure relief plug 11 will seal the slot 12 opened on the partition plate under the drive of the driving rod 9. At this time, the pressure inside the reactor body 1 will rush into the inside of the pressure relief layered cylinder 3 through the slot 12 at the bottom of the pressure relief layered cylinder 3. After the pressure enters the inside of the cylinder 5 through the slot 12, it will continue to rise. The first buffer is performed by the setting of the pressure relief cone 6 to reduce its impact force. After observing that the pressure on the pressure measuring valve gauge 4 reaches the normal point, the driving rod 9 can be lifted by starting the hydraulic cylinder, and the driving rod 9 drives the pressure relief plug 10 to re-seal the slot 12 at the bottom of the pressure relief layered cylinder 3. When the pressure relief plug 11 fixedly installed on the driving rod 9 will leave the slot 12 provided on the partition, thereby opening the connection between the pressure relief cone 6 and the connecting cylinder 7. At this time, the pressure will expand inside the entire pressure relief level cylinder 3. When it is necessary to discharge the pressure inside the pressure relief level cylinder 3, it is only necessary to rotate the ball valve 14 to open the connection between the pressure relief reflux pipe 13 and the pressure relief level cylinder 3. The pressure and hydrogen inside the pressure relief level cylinder 3 will be discharged and sprayed out through the pressure relief reflux pipe 13. After the pressure relief is completed, the ball valve 14 can be rotated again to seal it. Through the mutual cooperation between the above-mentioned mechanisms, the device can adjust the temperature and pressure inside the hydrogenation reactor according to actual use requirements during use, which is convenient for use when processing different substances inside the hydrogenation reactor, and is more convenient and practical.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure relief device for a hydrogenation reactor, comprising a reactor body (1) and a closing cover (2), wherein the closing cover (2) is fixedly mounted on the top of the reactor body (1), a pressure relief level cylinder (3) for pressure relief is fixedly mounted on the bottom of the closing cover (2), the pressure relief level cylinder (3) being arranged in multiple levels as a whole, and a pressure measuring valve gauge (4) for detecting the internal pressure of the reactor body (1) is fixedly mounted on one side of the top of the closing cover (2), characterized in that: Also includes: A pressure relief component, the pressure relief component is arranged inside the pressure relief layer cylinder (3), and the pressure relief component is used to adjust the pressure and temperature inside the reactor body (1); The pressure relief layer cylinder (3) comprises, from bottom to top, a cylinder (5), a pressure relief cone cylinder (6), a connecting cylinder (7) and a gathering cone cylinder (8), the above structures are fixedly installed together, and a partition for separation is fixedly installed at the connection between the pressure relief cone cylinder (6) and the connecting cylinder (7); The pressure relief assembly comprises a driving rod (9), a pressure relief plug 1 (10) and a pressure relief plug 2 (11); the driving rod (9) is arranged inside the pressure relief level cylinder (3); one end of the driving rod (9) passes through the pressure relief level cylinder (3) and the closing cover (2) and is fixedly connected to the output end of the hydraulic cylinder; the other end of the driving rod (9) is fixedly mounted with the pressure relief plug 1 (10); and the middle section of the outer wall of the driving rod (9) is fixedly mounted with the pressure relief plug 2 (11).

2. The pressure relief device of a hydrogenation reactor according to claim 1, characterized in that: The bottom of the pressure relief level cylinder (3) and the partition installed in the middle thereof are provided with slots (12) corresponding to the positions of the pressure relief plug 1 (10) and the pressure relief plug 2 (11) which fit therewith.

3. The pressure relief device of a hydrogenation reactor according to claim 1, characterized in that: A pressure relief return pipe (13) for pressure relief is fixedly mounted on one side of the top of the pressure relief stage cylinder (3); the pressure relief return pipe (13) penetrates the closing cover (2) and extends to one end outside the closing cover (2), and a ball valve (14) is rotatably mounted inside the end.

4. The pressure relief device of a hydrogenation reactor according to claim 1, characterized in that: A sealed cavity tube (15) for sealing is fixedly installed at a position corresponding to the driving rod (9) on the top of the inner wall surface of the pressure relief level cylinder (3).

5. The pressure relief device of a hydrogenation reactor according to claim 2, characterized in that: A sealing edge (16) for enhancing sealing is fixedly mounted on the bottom of the pressure relief plug (10), and a corresponding fitting groove (17) is provided at a position corresponding to the sealing edge (16) on the bottom of the pressure relief level cylinder (3).

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