CN217747053U

CN217747053U - Hydrogenation reaction kettle

Info

Publication number: CN217747053U
Application number: CN202221194211.XU
Authority: CN
Inventors: 张玉宝; 马义; 吴中礼; 王耀堂
Original assignee: ZHEJIANG HONGSHENG CHEMICAL INDUSTRY Ltd
Current assignee: ZHEJIANG HONGSHENG CHEMICAL INDUSTRY Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-11-08
Anticipated expiration: 2032-05-17

Abstract

The application relates to a hydrogenation reaction kettle, it includes the cauldron body and agitating unit, agitating unit includes agitator motor, (mixing) shaft and stirring thick liquid, agitator motor sets up the cauldron is internal, agitator motor's output shaft set up downwards and with the cauldron body is coaxial, the (mixing) shaft with agitator motor's the coaxial fixed connection of output shaft and stretch into in the cauldron body, the stirring thick liquid sets up on the (mixing) shaft, be provided with on the cauldron body and be arranged in leading back the retrieval and utilization device in the solution with the hydrogen of solution top. This application has the effect that improves the utilization ratio of hydrogen.

Description

Hydrogenation reaction kettle

Technical Field

The application relates to the field of hydrogenation reaction technology, in particular to a hydrogenation reaction kettle.

Background

Hydrogenation is an elegant means in chemical industry for removing small amounts of harmful, non-separable impurities from organic feedstocks or products, and is typically carried out in a hydrogenation reactor.

Among the correlation technique, the general cauldron body of hydrogenation cauldron and agitating unit, agitating unit set up and are used for stirring the internal portion of cauldron in the cauldron body, and the during operation is equipped with reaction solution and catalyst in the cauldron body, and during hydrogen let in reation kettle from reation kettle's bottom, start agitating unit and stir the internal portion of cauldron simultaneously to make hydrogen and solution and catalyst intensive mixing, and then carry out hydrogenation.

However, in the above reaction process, most of the hydrogen gas will rise to the surface of the solution under the action of buoyancy and then continue to rise above the solution, and the utilization rate of the hydrogen gas is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the utilization ratio of hydrogen, this application provides a hydrogenation cauldron.

The application provides a hydrogenation reation kettle adopts following technical scheme:

the utility model provides a hydrogenation reaction kettle, includes the cauldron body and agitating unit, agitating unit includes agitator motor, (mixing) shaft and stirring thick liquid, agitator motor sets up on the cauldron body, agitator motor's output shaft set up downwards and with the cauldron body is coaxial, the (mixing) shaft with agitator motor's the coaxial fixed connection of output shaft and stretch into in the cauldron body, the stirring thick liquid sets up on the (mixing) shaft, be provided with on the cauldron body and be arranged in leading back the retrieval and utilization device in the solution with the hydrogen of solution top.

Through adopting above-mentioned technical scheme, during operation, the internal reaction solution and the catalyst of being equipped with of cauldron, hydrogen lets in the cauldron body from cauldron body bottom, and start agitator motor drives the (mixing) shaft rotatory simultaneously, and the (mixing) shaft drives the stirring paddle and rotates to make hydrogen and solution and catalyst intensive mixing, and then carry out hydrogenation. Utilize the retrieval and utilization device to lead back the hydrogen of solution top to the solution again to carry out cyclic utilization to hydrogen, the effectual utilization ratio that improves hydrogen.

Optionally, the recycling device includes an air pump, an air suction pipe and a recycling pipe, the air pump is disposed on one side of the kettle body, one end of the air suction pipe is connected to an air inlet of the air pump, the other end of the air suction pipe is connected to the kettle body, a joint of the air suction pipe and the kettle body is close to a top end of the kettle body, one end of the recycling pipe is connected to an air outlet of the air pump, the other end of the recycling pipe is connected to the kettle body, and a joint of the recycling pipe and the kettle body is close to a bottom end of the kettle body.

Through adopting above-mentioned technical scheme, the air pump passes through the breathing pipe and sucks the hydrogen in with the cauldron body, and the rethread retrieval and utilization pipe leads to hydrogen back to in the solution to carry out cyclic utilization, simple structure to hydrogen.

Optionally, the air suction pipe is detachably connected with the kettle body through a connecting piece.

Through adopting above-mentioned technical scheme, the installation and the dismantlement of the breathing pipe of being convenient for.

Optionally, the inner side wall of the kettle body is provided with a fixing hole penetrating through the outer side wall of the kettle body, the fixing hole is close to the top end of the kettle body, the side wall of the air suction pipe is provided with an annular groove coaxial with the air suction pipe, the connecting piece comprises a fixing cylinder, the fixing cylinder is clamped on the annular groove, and the fixing cylinder is in threaded connection in the fixing hole.

By adopting the technical scheme, when the air suction pipe is installed, the air suction pipe is firstly inserted into the fixing hole, the fixing cylinder is coaxial with the fixing hole, then the fixing cylinder is rotated to enable the fixing cylinder to be in threaded connection with the fixing hole, so that the fixing cylinder is fixed, the air suction pipe is fixed along the length direction of the air suction pipe, and the air suction pipe is installed on the kettle body; when the air suction pipe is disassembled, the fixing cylinder is rotated reversely, and the fixing cylinder is taken out, so that the air suction pipe is simple in structure and convenient to operate.

Optionally, a positioning hole which is coaxial and communicated with the fixing hole is formed in the outer side wall of the kettle body, the diameter of the positioning hole is larger than that of the fixing hole, a supporting surface is formed between the fixing hole and the positioning hole, a sealing ring is arranged on the supporting surface and tightly abuts against the inner side of the positioning hole, a coaxial positioning cylinder is arranged at one end, far away from the inner portion of the kettle body, of the fixing cylinder, and the positioning cylinder tightly abuts against the sealing ring.

Through adopting above-mentioned technical scheme, utilize the location section of thick bamboo to support tight sealing washer, increased the gas tightness of breathing pipe with the cauldron body junction, the effectual possibility that reduces the cauldron body gas leakage. Because the fixed cylinder is in threaded connection with the fixed hole, the positioning cylinder can better abut against the sealing ring.

Optionally, one side of the sealing ring, which faces the positioning cylinder, is provided with an insertion groove coaxial with the positioning hole, one side of the positioning cylinder, which faces the sealing ring, is provided with a convex ring coaxial with the positioning cylinder, and the convex ring is inserted into the insertion groove.

By adopting the technical scheme, after the convex ring is inserted into the insertion groove, the contact area between the positioning cylinder and the sealing ring is increased, and the air tightness between the positioning cylinder and the sealing ring is effectively increased.

Optionally, the positioning cylinder is back to one end of the sealing ring is provided with a coaxial rotating part, and anti-skid grains are arranged on the side wall of the rotating part.

Through adopting above-mentioned technical scheme, it is rotatory to rotate the rotating part and drive a location section of thick bamboo, and a location section of thick bamboo is rotatory to drive fixed section of thick bamboo, and non-slip texture has increased the staff when rotating the rotating part and the frictional force between the rotating part, and is rational in infrastructure.

Optionally, be provided with a plurality of flabellums on the (mixing) shaft, it is a plurality of the flabellum is followed (mixing) shaft circumference evenly distributed just is used for blowing downwards, the flabellum is close to the top of the cauldron body.

Through adopting above-mentioned technical scheme, the (mixing) shaft drives the flabellum rotation and makes the flabellum blow downwards to produce the resistance to hydrogen, make hydrogen be difficult to upwards rise, thereby increased the contact time of hydrogen with solution, the effectual utilization ratio that improves hydrogen.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air pump sucks the hydrogen in the kettle body out through the air suction pipe and then leads the hydrogen back to the solution through the recycling pipe, so that the hydrogen is recycled, and the utilization rate of the hydrogen is effectively improved;

2. when the air suction pipe is installed, the air suction pipe is inserted into the fixing hole, the fixing cylinder is coaxial with the fixing hole, then the fixing cylinder is rotated to enable the fixing cylinder to be in threaded connection with the fixing hole, so that the fixing cylinder is fixed, the air suction pipe is fixed along the length direction of the air suction pipe, and the air suction pipe is installed on the kettle body; when the air suction pipe is disassembled, the fixing cylinder is rotated reversely and taken out, so that the structure is simple and the operation is convenient;

3. the (mixing) shaft drives the flabellum rotation and makes the flabellum blow downwards to produce the resistance to hydrogen, make hydrogen be difficult to upwards rise, thereby increased the contact time of hydrogen with solution, the effectual utilization ratio that improves hydrogen.

Drawings

FIG. 1 is a schematic perspective view of a hydrogenation reactor in the example of the present application.

FIG. 2 is a schematic view of the connection relationship between the stirring device and the kettle body in the embodiment of the present application.

FIG. 3 is a sectional view of the autoclave body in the example of the present application.

FIG. 4 is a sectional view of the fixing cylinder, the positioning cylinder, the air suction pipe and the kettle body in the embodiment of the present application.

Fig. 5 is an enlarged view of fig. 1 at a in the embodiment of the present application.

FIG. 6 is a schematic view of the connection between the recycling pipe and the autoclave body in the embodiment of the present application.

Description of reference numerals: 1. a kettle body; 11. a fixing hole; 12. positioning holes; 13. a support surface; 14. a seal ring; 141. inserting grooves; 2. a stirring device; 21. a stirring motor; 22. a stirring shaft; 23. stirring the slurry; 24. a fan blade; 3. a recycling device; 31. an air pump; 32. an air suction pipe; 321. an on-off valve; 322. an annular groove; 33. a recycling pipe; 41. a fixed cylinder; 42. a positioning cylinder; 43. a convex ring; 44. a rotating part; 45. and (4) an anti-slip groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a hydrogenation reaction kettle. Referring to fig. 1 and fig. 2, a hydrogenation reaction kettle includes the cauldron body 1 and agitating unit 2, agitating unit 2 includes agitator motor 21, (mixing) shaft 22 and stirring thick liquid 23, agitator motor 21 fixed mounting is on the cauldron body 1, agitator motor 21's output shaft sets up downwards and is coaxial with the cauldron body 1, the coaxial fixed connection of (mixing) shaft 22 and agitator motor 21's output shaft, and stretch into the cauldron body 1 downwards, stirring thick liquid 23 fixed mounting is on (mixing) shaft 22, stirring thick liquid 23 is close to the bottom of the cauldron body 1.

Referring to fig. 2, four fan blades 24 are fixedly mounted on the stirring shaft 22, the four fan blades 24 are uniformly distributed along the circumferential direction of the stirring shaft 22, the fan blades 24 are close to the top end of the kettle body 1, and when the stirring motor 21 drives the stirring shaft 22 to rotate, the stirring shaft 22 drives the fan blades 24 to rotate around the axis of the stirring shaft 22, so as to blow air downwards.

Referring to fig. 3 and 4, the inner side wall of the kettle body 1 is provided with a fixing hole 11 penetrating through the outer side wall of the kettle body 1, the fixing hole 11 is close to the top end of the kettle body 1, the outer side wall of the kettle body 1 is provided with a positioning hole 12 coaxial and communicated with the fixing hole 11, the diameter of the positioning hole 12 is larger than that of the fixing hole 11, and a supporting surface 13 is formed between the fixing hole 11 and the positioning hole 12. The supporting surface 13 is provided with a sealing ring 14, the sealing ring 14 abuts against the inner side of the positioning hole 12, and one side of the sealing ring 14, which is opposite to the supporting surface 13, is provided with an inserting groove 141 which is coaxial with the positioning hole 12.

Referring to fig. 1, the autoclave body 1 is provided with a recycling device 3 for returning hydrogen above the solution to the solution, the recycling device 3 comprises an air pump 31, an air suction pipe 32 and a recycling pipe 33, the air pump 31 is fixedly installed on one side of the autoclave body 1, one end of the air suction pipe 32 is connected with an air inlet of the air pump 31, and the other end of the air suction pipe is detachably connected with the autoclave body 1 through a connecting piece.

Referring to fig. 1 and 4, the suction pipe 32 is provided with a switching valve 321, and an annular groove 322 coaxial with the suction pipe 32 is formed on an outer side wall of the suction pipe 32. The connecting piece includes a fixed section of thick bamboo 41, and a fixed section of thick bamboo 41 joint is on annular groove 322, and a fixed section of thick bamboo 41 and the cauldron body 1 threaded connection just are arranged in fixed orifices 11. The one end that the fixed cylinder 41 kept away from the cauldron body 1 inside is integrative to be provided with coaxial location section of thick bamboo 42, and the external diameter of location section of thick bamboo 42 equals the diameter of locating hole 12, and the one end that the fixed cylinder 41 was faced to location section of thick bamboo 42 is integrative to be provided with coaxial bulge loop 43, and the bulge loop 43 is pegged graft in inserting groove 141 and location section of thick bamboo 42 supports tight sealing washer 14.

Referring to fig. 1 and 5, one end of the positioning cylinder 42, which is far away from the fixing cylinder 41, is integrally provided with a coaxial rotating portion 44, the diameter of the rotating portion 44 is larger than that of the positioning cylinder 42, a plurality of anti-slip grooves 45 are formed in the side wall of the rotating portion 44, and the anti-slip grooves 45 are axially arranged along the rotating portion 44 and are uniformly distributed along the circumferential direction of the rotating portion 44, so that anti-slip lines are formed.

Referring to fig. 1 and 6, one end of the recycling pipe 33 is connected to the air outlet of the air pump 31, the other end is connected to the kettle 1, and the recycling pipe 33 is connected to the kettle 1 in the same manner as the air suction pipe 32 is connected to the kettle 1.

The implementation principle of a hydrogenation reaction kettle in the embodiment of the application is as follows: during operation, the reaction solution and catalyst are equipped with in the cauldron body 1, and hydrogen lets in cauldron body 1 from cauldron body 1 bottom, and start agitator motor 21 simultaneously and drive (mixing) shaft 22 rotatory, and (mixing) shaft 22 drives flabellum 24 and stirring rake 23 and is rotatory around the axis of (mixing) shaft 22 to make hydrogen and solution and catalyst intensive mixing, and then carry out hydrogenation. The flabellum 24 is rotatory to make flabellum 24 blow downwards to produce the resistance to hydrogen, make hydrogen be difficult to upwards rise, thereby increased the contact time of hydrogen with the solution, the effectual utilization ratio that improves hydrogen.

After hydrogen entered the cauldron body 1, open on-off valve 321, start air pump 31, air pump 31 passes through breathing pipe 32 with the hydrogen suction of solution top, and rethread retrieval and utilization pipe 33 leads to hydrogen back to in the solution to carry out cyclic utilization to hydrogen, the effectual utilization ratio that improves hydrogen.

When installing breathing pipe 32, insert breathing pipe 32 earlier in the fixed orifices 11 and make solid fixed cylinder 41 coaxial with fixed orifices 11, then rotate rotating part 44, rotating part 44 drives the location section of thick bamboo 42 rotatory, location section of thick bamboo 42 drives solid fixed cylinder 41 rotatory, make solid fixed cylinder 41 threaded connection in fixed orifices 11, and make bulge loop 43 peg graft in inserting groove 141, location section of thick bamboo 42 supports tight sealing washer 14, thereby it is fixed with solid fixed cylinder 41, gu fixed cylinder 41 is fixed and make breathing pipe 32 fixed along breathing pipe 32 length direction, thereby with breathing pipe 32 fixed mounting on the cauldron body 1. After the convex ring 43 is inserted into the insertion groove 141, the air tightness of the system is effectively improved, and the structure is reasonable. When the air suction pipe 32 is detached, the rotating part 44 is rotated reversely to rotate the fixing cylinder 41 out of the fixing hole 11, so that the structure is simple and the operation is convenient. The reuse pipe 33 is installed and removed in the same manner as the suction pipe 32.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A hydrogenation reaction kettle is characterized in that: including the cauldron body (1) and agitating unit (2), agitating unit (2) include agitator motor (21), (mixing) shaft (22) and stirring thick liquid (23), agitator motor (21) set up on the cauldron body (1), the output shaft of agitator motor (21) set up downwards and with the cauldron body (1) is coaxial, mixing shaft (22) with the coaxial fixed connection of output shaft of agitator motor (21) just stretches into in the cauldron body (1), stirring thick liquid (23) set up on mixing shaft (22), be provided with on the cauldron body (1) and be arranged in leading back retrieval and utilization device (3) in the solution with the hydrogen of solution top.

2. The hydrogenation reactor according to claim 1, wherein: retrieval and utilization device (3) device includes air pump (31), breathing pipe (32) and retrieval and utilization pipe (33), air pump (31) set up one side of the cauldron body (1), the one end of breathing pipe (32) with the air inlet of air pump (31) is connected, the other end with the cauldron body (1) is connected, just breathing pipe (32) with the junction of the cauldron body (1) is close to the top of the cauldron body (1), the one end of retrieval and utilization pipe (33) with the gas outlet of air pump (31) is connected, the other end with the cauldron body (1) is connected, just retrieval and utilization pipe (33) with the junction of the cauldron body (1) is close to the bottom of the cauldron body (1).

3. A hydrogenation reactor as defined in claim 2, wherein: the air suction pipe (32) is detachably connected with the kettle body (1) through a connecting piece.

4. A hydrogenation reactor according to claim 3, characterized in that: the inner side wall of the kettle body (1) is provided with a fixing hole (11) penetrating through the outer side wall of the kettle body (1), the fixing hole (11) is close to the top end of the kettle body (1), the side wall of the air suction pipe (32) is provided with an annular groove (322) coaxial with the air suction pipe (32), the connecting piece comprises a fixing barrel (41), the fixing barrel (41) is clamped on the annular groove (322), and the fixing barrel (41) is in threaded connection in the fixing hole (11).

5. The hydrogenation reactor as claimed in claim 4, wherein: seted up on the lateral wall of the cauldron body (1) with locating hole (12) of coaxial and intercommunication of fixed orifices (11), the diameter of locating hole (12) is greater than the diameter of fixed orifices (11), fixed orifices (11) with form holding surface (13) between locating hole (12), be provided with sealing washer (14) on holding surface (13), sealing washer (14) support tightly the inboard of locating hole (12), a fixed section of thick bamboo (41) are kept away from the inside one end of the cauldron body (1) is provided with coaxial location section of thick bamboo (42), a location section of thick bamboo (42) support tightly sealing washer (14).

6. The hydrogenation reactor as claimed in claim 5, wherein: one side, facing the positioning cylinder (42), of the sealing ring (14) is provided with an insertion groove (141) coaxial with the positioning hole (12), one side, facing the sealing ring (14), of the positioning cylinder (42) is provided with a convex ring (43) coaxial with the positioning cylinder (42), and the convex ring (43) is inserted into the insertion groove (141).

7. The hydrogenation reactor as claimed in claim 5, wherein: the one end that location section of thick bamboo (42) back to sealing washer (14) is provided with coaxial rotating part (44), be provided with anti-skidding line on the lateral wall of rotating part (44).

8. The hydrogenation reactor as claimed in claim 1, wherein: be provided with a plurality of flabellums (24) on (mixing) shaft (22), it is a plurality of flabellum (24) are followed (mixing) shaft (22) circumference evenly distributed just is used for blowing downwards, flabellum (24) are close to the top of the cauldron body (1).