Catalyst feeder of hydrogenation reaction kettle

Abstract

The utility model discloses a catalyst feeder of a hydrogenation reaction kettle, which comprises a reaction kettle body, the top of the reaction kettle body is fixedly connected with a connecting sleeve, the connecting sleeve is provided with a connecting pipe, and the top of the connecting pipe is fixedly connected with a hopper; a supporting ring is fixedly connected to the outer surface of the connecting sleeve, a spring is arranged at the top of the supporting ring, a top ring is fixedly connected to the other end of the spring, a second sealing gasket is arranged on the top ring, a first pressing ring and a second pressing ring are fixedly connected to the inner wall of the connecting pipe, and a first sealing gasket is arranged at the bottom of the first pressing ring. By means of the device, when the second pressing ring presses the second sealing gasket, the spring provides reverse elastic force to support the top ring, the sealing performance of the top ring is enhanced through the pressure downwards applied by the second pressing ring, the problem that a catalyst makes contact with air and is inactivated is effectively solved, and the leakproofness in the feeding process is improved.

Description

Technical Field

[0001] This utility model relates to the field of catalyst feeder technology, and in particular to a catalyst feeder for a hydrogenation reactor. Background Technology

[0002] Since hydrogenation reactions are usually carried out in a high temperature and high pressure environment, the catalysts are mostly flammable, explosive or air-sensitive metal powders, such as palladium on carbon and nickel-based catalysts. If they are directly exposed to air during the reaction or if the material is sprayed out due to pressure imbalance, it is very easy to cause fire or explosion accidents. Generally, when adding a catalyst, the catalyst is suspended in a solvent and finally flows into the hydrogenation reactor through a pipeline.

[0003] Existing catalyst feeder technologies have poor sealing performance, which can easily lead to gas leakage or impurity contamination, posing certain safety hazards. For example, Chinese patent disclosure "A catalyst feeder for a hydrogenation reactor" (application number "CN201620061936.X") uses a technique of suspending the catalyst in a solvent and then using nitrogen to pressurize the suspension into the reactor. By directly pressing the catalyst into the reactor with nitrogen, it avoids pipe blockage. However, in its use, the interface between the connecting pipe and the hydrogenation reactor is generally connected rather than welded, so sealing problems often occur during use. Moreover, the catalyst cannot come into contact with air; contact can cause problems. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a catalyst feeder for a hydrogenation reactor. When the connecting pipe is inserted into the connecting sleeve, the first pressure ring and the second pressure ring respectively form a compression seal on the first sealing gasket and the second sealing gasket. In particular, while the second pressure ring is compressing the second sealing gasket, under the action of the spring force, the spring presses the top ring downward, so that the top of the top ring is subjected to the reaction force from the second pressure ring, thereby enhancing the sealing effect, ensuring the airtightness and safety of the feeding process, and effectively improving the efficiency and reliability of the hydrogenation reaction.

[0005] This utility model also provides a catalyst feeder for a hydrogenation reactor as described above, comprising: a reactor body, a connecting sleeve fixedly connected to the top of the reactor body, a connecting pipe provided on the connecting sleeve, and a hopper fixedly connected to the top of the connecting pipe; a support ring fixedly connected to the outer surface of the connecting sleeve, a spring provided on the top of the support ring, a top ring fixedly connected to the other end of the spring, a second sealing gasket provided on the top ring, and a first pressure ring and a second pressure ring fixedly connected to the inner wall of the connecting pipe, with a first sealing gasket provided at the bottom of the first pressure ring. Through this device, when the second sealing gasket is pressed by the second pressure ring, the spring provides a reverse elastic force to support the top ring, and the pressure applied downwards by the second pressure ring enhances the sealing performance of the top ring, effectively preventing the catalyst from deactivating upon contact with air and improving the airtightness of the feeding process.

[0006] According to the catalyst feeder of the hydrogenation reactor described in this utility model, a support leg is fixedly connected to the lower surface of the reactor body, and the connecting pipe is located outside the connecting sleeve. This device, through the support leg structure, improves the stability of the reactor and facilitates the installation and operation of the overall structure.

[0007] According to the catalyst feeder of the hydrogenation reactor described in this utility model, the hopper is provided with a top cover, and a locking buckle is detachably connected between the top cover and the hopper. Through the design of the top cover and the locking buckle, sealing and quick disassembly are achieved, facilitating feeding and cleaning operations.

[0008] According to the catalyst feeder of the hydrogenation reactor described in this utility model, the outer surface of the support ring is fitted with the inner ring of the connecting pipe, and the height of the support ring is lower than the height of the connecting sleeve. This precise fit structure improves sealing and reduces the risk of catalyst leakage.

[0009] According to the catalyst feeder of the hydrogenation reactor described in this utility model, a fastening ring is provided on the outside of the connecting pipe, and the fastening ring is located around the support ring. This device, with the fastening ring assisting the connection structure, enhances connection stability and prevents loosening or detachment.

[0010] According to the catalyst feeder of the hydrogenation reactor described in this utility model, the spring is wrapped around the outside of the connecting sleeve, and the width of the top ring is equal to the width of the support ring. Through this device, the spring and top ring work together to achieve automatic return and buffering effects, improving the sealing efficiency.

[0011] According to the catalyst feeder of the hydrogenation reactor described in this utility model, the second sealing gasket is fitted to the lower surface of the second pressure ring, and the width of the second pressure ring is equal to that of the top ring. This device ensures uniform sealing and improves the sealing effect by ensuring that the pressure ring and sealing gasket are fitted together at the same width.

[0012] According to the catalyst feeder of the hydrogenation reactor described in this utility model, the second pressure ring is fixedly connected to the lower surface of the first pressure ring, the width of the first pressure ring is equal to the width of the top ring and the connecting sleeve, and the lower surface of the first sealing gasket is in contact with the top of the connecting sleeve. Through the above device, a composite sealing system is formed by the multiple pressure rings and sealing gaskets, enhancing the overall airtightness.

[0013] Beneficial effects

[0014] Compared with existing technologies, the catalyst feeder of this hydrogenation reactor achieves a sealing effect by having the first and second pressure rings compress and seal the first and second sealing gaskets respectively when the connecting pipe is inserted into the connecting sleeve. In particular, while the second pressure ring is compressing the second sealing gasket, the spring force also presses the top ring downwards, causing the top of the top ring to receive a reaction force from the second pressure ring. This enhances the sealing effect, ensures the airtightness and safety of the feeding process, and effectively improves the efficiency and reliability of the hydrogenation reaction. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the catalyst feeder of the hydrogenation reactor of this utility model;

[0017] Figure 2 The catalyst feeder for the hydrogenation reactor of this utility model Figure 1 Internal structure diagram;

[0018] Figure 3 The catalyst feeder for the hydrogenation reactor of this utility model Figure 1 Internal sectional view;

[0019] Figure 4 The catalyst feeder of the hydrogenation reactor of this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 The catalyst feeder of the hydrogenation reactor of this utility model Figure 3 Enlarged view of section B in the middle.

[0021] Legend:

[0022] 1. Reactor body; 2. Connecting pipe; 3. Hopper; 4. Top cover; 5. Lock; 6. Support leg; 7. First pressure ring; 8. Second pressure ring; 9. First sealing gasket; 10. Fastening ring; 11. Support ring; 12. Spring; 13. Top ring; 14. Second sealing gasket; 15. Connecting sleeve. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model discloses a catalyst feeder for a hydrogenation reactor, comprising: a reactor body 1, a connecting sleeve 15 fixedly connected to the top of the reactor body 1, a support leg 6 fixedly connected to the lower surface of the reactor body 1, a connecting pipe 2 located outside the connecting sleeve 15, the connecting sleeve 15 having the connecting pipe 2, a hopper 3 fixedly connected to the top of the connecting pipe 2, a top cover 4 on the hopper 3, a locking buckle 5 detachably connected between the top cover 4 and the hopper 3, a support ring 11 fixedly connected to the outer surface of the connecting sleeve 15, the outer surface of the support ring 11 fitting against the inner ring of the connecting pipe 2, the height of the support ring 11 being lower than the height of the connecting sleeve 15, and a fastening ring 10 located outside the connecting pipe 2, the fastening ring 10 being located around the support ring 11.

[0025] Specifically, when connecting the reactor body 1 to the connecting pipe 2, attention must be paid to its sealing. The catalyst will deactivate upon contact with air. When inserting the connecting pipe 2 into the connecting sleeve 15, the fastening ring 10 should be used to tightly seal the connecting pipe 2 against the outer wall of the support ring 11. Then, the catalyst is added to the hopper 3. At this time, the catalyst is suspended in the solvent and finally flows through the connecting pipe 2 to the reactor body 1 for reaction. After addition, the top cover 4 needs to be placed on the hopper 3. The hydrogenation reactor is a sealed container used for high-temperature, high-pressure hydrogen reactions. It mainly consists of a reactor body, a lid, a stirring device, a heating system, a cooling system, a pressure control device, and a safety valve. Its working principle is to add reactants, catalyst, and solvent into the reactor, heat it under the action of the heating device, and simultaneously introduce hydrogen gas to a set pressure. The stirring system ensures that the reactants, hydrogen gas, and catalyst are in full contact, thereby promoting the hydrogenation reaction. After the reaction is completed, the temperature is rapidly reduced through the cooling system before venting, sampling, or discharging.

[0026] Reference Figure 4 , Figure 5A spring 12 is provided at the top of the support ring 11, and a top ring 13 is fixedly connected to the other end of the spring 12. The spring 12 surrounds the outside of the connecting sleeve 15. The width of the top ring 13 is equal to the width of the support ring 11. A second sealing gasket 14 is provided on the top ring 13. A first pressure ring 7 and a second pressure ring 8 are fixedly connected to the inner wall of the connecting tube 2. The second sealing gasket 14 is in contact with the lower surface of the second pressure ring 8. The width of the second pressure ring 8 is equal to that of the top ring 13. A first sealing gasket 9 is provided at the bottom of the first pressure ring 7. The second pressure ring 8 is fixedly connected to the lower surface of the first pressure ring 7. The width of the first pressure ring 7 is equal to the width of the top ring 13 and the connecting sleeve 15. The lower surface of the first sealing gasket 9 is in contact with the top of the connecting sleeve 15.

[0027] Specifically, when the connecting tube 2 is inserted into the connecting sleeve 15, the first pressure ring 7 and the second pressure ring 8 on the inner wall of the connecting tube 2 respectively squeeze the first sealing gasket 9 and the second sealing gasket 14. When the second pressure ring 8 squeezes the second sealing gasket 14, under the elastic force of the spring 12, the spring 12 presses against the top ring 13, and the top of the top ring 13 is subjected to the pressure of the second pressure ring 8. The combined force of the two squeezes the second sealing gasket 14.

[0028] Working principle: When using the reactor, attention should be paid to its sealing when connecting the reactor to the connecting pipe 2. The catalyst will be deactivated when it comes into contact with air. When the connecting pipe 2 is inserted into the connecting sleeve 15, the first pressure ring 7 and the second pressure ring 8 on the inner wall of the connecting pipe 2 will squeeze the first sealing gasket 9 and the second sealing gasket 14 respectively. When the second pressure ring 8 squeezes the second sealing gasket 14, under the elastic force of the spring 12, the spring 12 will press against the top ring 13. The top of the top ring 13 will be subjected to the pressure of the second pressure ring 8. The combined force of the two will squeeze the second sealing gasket 14.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A catalyst feeder for a hydrogenation reactor, characterized in that, include: The reactor body (1) has a connecting sleeve (15) fixedly connected to the top of the reactor body (1), and a connecting pipe (2) is provided on the connecting sleeve (15). A hopper (3) is fixedly connected to the top of the connecting pipe (2). A support ring (11) is fixedly connected to the outer surface of the connecting sleeve (15). A spring (12) is provided on the top of the support ring (11). A top ring (13) is fixedly connected to the other end of the spring (12). A second sealing gasket (14) is provided on the top ring (13). A first pressure ring (7) and a second pressure ring (8) are fixedly connected to the inner wall of the connecting tube (2). A first sealing gasket (9) is provided at the bottom of the first pressure ring (7).

2. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The lower surface of the reactor body (1) is fixedly connected to a support leg (6), and the connecting pipe (2) is located outside the connecting sleeve (15).

3. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The hopper (3) is provided with a top cover (4), and a latch (5) is detachably connected between the top cover (4) and the hopper (3).

4. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The outer surface of the support ring (11) is in contact with the inner ring of the connecting pipe (2), and the height of the support ring (11) is lower than the height of the connecting sleeve (15).

5. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, A fastening ring (10) is provided on the outside of the connecting pipe (2), and the fastening ring (10) is located on the periphery of the support ring (11).

6. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The spring (12) surrounds the outside of the connecting sleeve (15), and the width of the top ring (13) is equal to the width of the support ring (11).

7. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The second sealing gasket (14) is attached to the lower surface of the second pressure ring (8), and the width of the second pressure ring (8) is equal to that of the top ring (13).

8. The catalyst feeder for a hydrogenation reactor according to claim 1, characterized in that, The second pressure ring (8) is fixedly connected to the lower surface of the first pressure ring (7). The width of the first pressure ring (7) is equal to the width of the top ring (13) and the connecting sleeve (15). The lower surface of the first sealing gasket (9) is in contact with the top of the connecting sleeve (15).

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