Catalyst replacement type hydrogenation reactor

Abstract

The utility model relates to the technical field of hydrogenation reactors, in particular to a catalyst replacement type hydrogenation reactor which comprises a shell, a side door is arranged on one side of the shell, a driving part is fixedly mounted on one side of the shell, and a feeding mechanism is arranged at the top of the shell; a connecting frame is fixedly connected to the inner side of the side door, a storage bag is arranged at the bottom of the connecting frame, a sealing plate is arranged at the bottom of the storage bag, and a handle is arranged on one side of the side door. The catalyst has the beneficial effects that when the catalyst is used, the situation that active metal sulfide in the catalyst releases heat violently after being contacted and oxidized with air to possibly cause spontaneous combustion of the catalyst and even ignite residual oil gas in a reactor is avoided, and the safety is improved; meanwhile, by means of rotation of the eccentric wheel, the sealing plate ejects the catalyst in the storage bag to turn over, the contact uniformity between the water vapor and the catalyst is improved, and the situation that due to uneven contact between the water vapor and the catalyst in the passivation process, local overheating and even equipment corrosion are caused is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogenation reactor technical field especially a kind of replacement catalyst type hydrogenation reactor. BACKGROUND

[0002] Hydrogenation reactor is the key equipment that raw materials and hydrogen gas occur heteroatom removal, macromolecular cracking, unsaturated molecule saturation etc.

[0003] In the hydrogenation reactor of a kind of replaceable catalyst disclosed in Chinese patent CN222872126U, catalyst is replaced without overall dismounting device, thereby reduce the difficulty of catalyst replacement of device, improve the efficiency of catalyst replacement of device.But, compared with prior art and comparison scheme can know, the hydrogenation reactor, in the process of actual use, there are still the following problems:

[0004] Part of hydrogenation catalyst, such as hydrogenation desulfurization catalyst, needs to be pre-sulfurized and activated, and passivation treatment is needed before unloading, that is, active metal sulfide in the catalyst is converted into stable oxide by using oxygen or water vapor.If passivation is not complete, active metal sulfide in the catalyst will be oxidized after contacting with air, which will cause severe heat release, possibly leading to self-ignition of the catalyst, and even igniting residual oil gas in the reactor, which has safety hazards.Meanwhile, if oxygen or water vapor is not uniformly contacted with the catalyst during passivation process, local overheating may occur, which may cause corrosion of equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the shortcomings of prior art, solving the problems mentioned in the background art, and providing a catalyst replacement type hydrogenation reactor.

[0006] The utility model achieves the purpose by the following technical scheme: a catalyst replacement type hydrogenation reactor, comprising a shell, a side door is arranged on one side of the shell, a driving member is fixedly installed on one side of the shell, and a feeding mechanism is arranged on the top of the shell.

[0007] The inner side of the side door is fixedly connected with a connecting frame, the bottom of the connecting frame is provided with a storage bag, the bottom of the storage bag is provided with a sealing plate, one side of the side door is provided with a handle, and the bottom of the side door is fixedly connected with a second supporting leg.

[0008] The output end of the driving member is fixedly connected with a connecting shaft, one end of the connecting shaft away from the driving member is fixedly connected with an eccentric wheel, and the wheel surface of the eccentric wheel is provided with a ball.

[0009] The feeding mechanism comprises a feeding pipe, a spraying assembly is rotatably connected to the feeding pipe, and an inlet diffuser is arranged at the bottom of the feeding pipe.

[0010] The connecting plate is fixedly connected with the second connecting pipe;

[0011] The spraying assembly comprises a connecting ring, and the spraying pipe is fixedly connected with the connecting ring;

[0012] The position of the eccentric wheel corresponds to the position of the sealing plate;

[0013] The connecting ring is rotatably connected between the connecting plate and the connecting cover.

[0014] Preferably, the housing is rotatably connected with a limiting block, the inner side of the housing is provided with a connecting groove, one side of the housing is fixedly connected with a support frame, the driving member is fixedly installed on the support frame, the inside of the housing is fixedly connected with the first connecting pipe, and the bottom of the housing is fixedly connected with the discharge pipe and the first supporting leg.

[0015] Preferably, the connecting shaft is rotatably connected in the inside of the first connecting pipe.

[0016] Preferably, the inlet diffuser is arranged in the inside of the connecting cover.

[0017] Preferably, the feeding pipe and the second connecting pipe are both fixedly connected with the top of the housing.

[0018] Preferably, the number of the spraying pipes is multiple, and the spraying pipes are circumferentially arranged on the connecting ring; the number of the spraying heads is multiple, and the spraying heads are linearly arranged on the spraying pipes.

[0019] Compared with the prior art, the utility model has the advantages of the following:

[0020] The catalyst type hydrogenation reactor, when in use, avoids that active metal sulfide in the catalyst is oxidized after contacting with air, and the active metal sulfide is sharply exothermic, which can cause the catalyst to be self-ignited, even causes the residual oil gas in the reactor to be ignited, and the safety is improved; meanwhile, the catalyst in the storage bag is turned over by the eccentric wheel, the uniformity of the contact between the water vapor and the catalyst is improved, the contact between the water vapor and the catalyst is not uniform in the passivation process, and the situation that local overheating is caused and even the equipment is corroded is avoided.

[0021] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying the creative labor.

[0023] Figure 1 It is the sectional view structural schematic drawing of the utility model;

[0024] Figure 2 It is the structural schematic drawing of the first state of the utility model;

[0025] Figure 3 It is the structural schematic drawing of the second state of the utility model;

[0026] Figure 4 It is the structural schematic drawing of the shell of the utility model;

[0027] Figure 5 It is the structural schematic drawing of the side door of the utility model;

[0028] Figure 6 It is the structural schematic drawing of the driving part of the utility model;

[0029] Figure 7 It is the structural schematic drawing of the feeding mechanism of the utility model;

[0030] Figure 8 It is the sectional view structural schematic drawing of the feeding pipe of the utility model;

[0031] Figure 9 It is the structural schematic drawing of the injection assembly of the utility model.

[0032] In the drawing: 1, shell; 101, limit card block; 102, connecting groove; 103, support frame; 104, first connecting pipe; 105, discharge pipe; 106, first support leg; 2, side door; 201, connecting frame; 202, storage bag; 203, sealing plate; 204, handle; 205, second support leg; 3, driving part; 301, connecting shaft; 302, eccentric wheel; 303, ball; 4, feeding mechanism; 41, feeding pipe; 411, connecting plate; 412, connecting cover; 413, second connecting pipe; 42, injection assembly; 421, connecting ring; 422, injection pipe; 423, injection head; 43, inlet diffuser. DETAILED DESCRIPTION

[0033] In the description of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0034] The additional aspects and advantages of the utility model will be further given in the following description combined with the drawings, part will become obvious from the following description, or understand through the practice of the utility model.

[0035] As Figures 1 to 3 shown, a kind of replacement catalyst type hydrogenation reactor, it includes shell 1, the side of shell 1 is provided with side door 2, the side of shell 1 is fixedly installed with driving element 3, the top of shell 1 is provided with feeding mechanism 4;

[0036] As Figure 2 and Figure 4 shown, shell 1 is rotatably connected with limit stopper 101, the number of limit stopper 101 is multiple, and evenly distributed on the position corresponding to the edge of side door 2 of shell 1, the inside of shell 1 is provided with connecting groove 102, one side of shell 1 is fixedly connected with support frame 103, driving element 3 is fixedly installed on support frame 103, the inside of shell 1 is fixedly connected with first connecting pipe 104, the bottom of shell 1 is fixedly connected with discharge pipe 105 and first support leg 106;

[0037] As Figure 5 shown, the inside of side door 2 is fixedly connected with connecting frame 201, the bottom of connecting frame 201 is provided with receiving bag 202, when using, receiving bag 202 is filled with catalyst inside, the bottom of receiving bag 202 is provided with sealing plate 203, one side of side door 2 is provided with handle 204, the bottom of side door 2 is fixedly connected with second support leg 205, when using, the bottom of second support leg 205 is provided with gyro wheel, to reduce the friction between second support leg 205 and ground when opening and closing side door 2;

[0038] As Figure 1 , Figure 3 and Figure 6 shown, the output end of driving element 3 is fixedly connected with connecting shaft 301, connecting shaft 301 is rotatably connected in the inside of first connecting pipe 104, the end, away from driving element 3, of connecting shaft 301 is fixedly connected with eccentric wheel 302, the position of eccentric wheel 302 corresponds to the position of sealing plate 203, and the wheel surface of eccentric wheel 302 is provided with ball 303;

[0039] As Figure 1 and Figure 7 shown, feeding mechanism 4 includes feeding pipe 41, injection assembly 42 and inlet diffuser 43, injection assembly 42 is rotatably connected on feeding pipe 41, and inlet diffuser 43 is provided at the bottom of feeding pipe 41;

[0040] As Figure 1 and Figure 8As shown, the feed pipe 41 is fixedly connected with a connecting plate 411 and a connecting cover 412, the inlet diffuser 43 is arranged inside the connecting cover 412, the connecting plate 411 is fixedly connected with a second connecting pipe 413, and the feed pipe 41 and the second connecting pipe 413 are both fixedly connected at the top of the shell 1.

[0041] As shown in Figure 1 , Figure 7 and Figure 9 , the spraying assembly 42 comprises a connecting ring 421, a spraying pipe 422 and a spraying head 423, the connecting ring 421 is rotationally connected between the connecting plate 411 and the connecting cover 412, the connecting ring 421 is fixedly connected with the spraying pipe 422, the number of the spraying pipe 422 is multiple, and the spraying pipe 422 is circumferentially arranged on the connecting ring 421, the spraying pipe 422 is provided with the spraying head 423, the number of the spraying head 423 is multiple, and the spraying head 423 is linearly arranged on the spraying pipe 422.

[0042] The electronic components appearing in the text are all electrically connected with a host controller and a 220V mains supply, and the host controller can be a conventional known device such as a computer. The electronic components involved in the text and the control system, power supply module, circuit, pipeline line used therewith can be provided by the manufacturer. In addition, the electronic components and control modules involved in the utility model are prior art, and those skilled in the art can fully realize them without further description. The content protected by the utility model does not involve improvement of the structure and use method of the electronic components.

[0043] The working process is as follows:

[0044] S1, before use, rotate the side door 2, open the side door 2, then fill the storage bag 202 with catalyst, then close the side door 2, and fix the side door 2 by the limiting clamping block 101;

[0045] S2, during use, the raw material enters from the feed pipe 41, diffuses through the inlet diffuser 43 and then enters the shell 1, the hydrogen enters between the connecting plate 411, the connecting cover 412 and the connecting ring 421 from the second connecting pipe 413, then enters the spraying pipe 422, and is sprayed from the spraying head 423, mixed with the raw material entering the shell 1 from the inlet diffuser 43, catalyzed by the catalyst in the storage bag 202, and discharged from the discharge pipe 105 after reaction;

[0046] S3, when the catalyst needs to be replaced, first discharge the raw material in the shell 1 from the discharge pipe 105, then enter the water vapor from the second connecting pipe 413 into the connecting plate 411, the connecting cover 412 and the connecting ring 421, and then into the spraying pipe 422, and spray from the spraying head 423;

[0047] S4, the reaction force generated when the water vapor is sprayed drives the connecting ring 421 to rotate between the connecting plate 411 and the connecting cover 412 through the spray pipe 422, improving the uniformity of the water vapor in the shell 1;

[0048] S5, then start the drive member 3, the drive member 3 drives the eccentric wheel 302 to rotate through the connecting shaft 301, the eccentric wheel 302 drives the ball 303, in the process of rotating the eccentric wheel 302, the catalyst in the storage bag 202 is flipped by the sealing plate 203, improving the uniformity of the contact between the water vapor and the catalyst, and the active metal sulfide in the catalyst is converted into stable oxide by using water vapor;

[0049] S6, rotate the limiting block 101, release the limiting of the side door 2, then open the side door 2, the side door 2 drives the storage bag 202 through the connecting frame 201, so as to drive the catalyst in the storage bag 202 to rotate out of the shell 1, and the catalyst in the storage bag 202 can be discharged by opening the sealing plate 203;

[0050] S7, after the discharge is completed, the sealing plate 203 is closed, and new catalyst is added into the storage bag 202, so that the replacement of the catalyst is completed, avoiding the case that the active metal sulfide in the catalyst is oxidized after contacting with air, which may cause the catalyst to self-ignite, even ignite the residual oil gas in the reactor, and improving the safety;

[0051] S8, at the same time, the rotation of the eccentric wheel 302 flips the catalyst in the storage bag 202 through the sealing plate 203, improving the uniformity of the contact between the water vapor and the catalyst, avoiding the case that the water vapor and the catalyst are not uniformly contacted in the passivation process, which may cause local overheating and even equipment corrosion.

[0052] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, the present application can also have various changes and improvements, and these changes and improvements all fall within the scope of the present application.

Claims

1. A catalyst-replacement type hydrogenation reactor, characterized in that: Includes a housing (1), a side door (2) is provided on one side of the housing (1), a drive unit (3) is fixedly installed on one side of the housing (1), and a feeding mechanism (4) is provided on the top of the housing (1). A connecting frame (201) is fixedly connected to the inner side of the side door (2). A storage bag (202) is provided at the bottom of the connecting frame (201). A sealing plate (203) is provided at the bottom of the storage bag (202). A handle (204) is provided on one side of the side door (2). A second support leg (205) is fixedly connected to the bottom of the side door (2). The output end of the drive component (3) is fixedly connected to a connecting shaft (301), and the end of the connecting shaft (301) away from the drive component (3) is fixedly connected to an eccentric wheel (302), and the surface of the eccentric wheel (302) is provided with balls (303). The feeding mechanism (4) includes a feeding pipe (41), a spray assembly (42) is rotatably connected to the feeding pipe (41), and an inlet diffuser (43) is provided at the bottom of the feeding pipe (41). A connecting plate (411) and a connecting cover (412) are fixedly connected to the feed pipe (41), and a second connecting pipe (413) is fixedly connected to the connecting plate (411). The spraying assembly (42) includes a connecting ring (421), a spraying pipe (422) is fixedly connected to the connecting ring (421), and a spraying head (423) is provided on the spraying pipe (422). The position of the eccentric wheel (302) corresponds to the position of the sealing plate (203); The connecting ring (421) is rotatably connected between the connecting plate (411) and the connecting cover (412).

2. The catalyst-replacement type hydrogenation reactor according to claim 1, characterized in that: A limit block (101) is rotatably connected to the outer shell (1). A connecting groove (102) is provided on the inner side of the outer shell (1). A support frame (103) is fixedly connected to one side of the outer shell (1). The driving component (3) is fixedly installed on the support frame (103). A first connecting pipe (104) is fixedly connected inside the outer shell (1). A discharge pipe (105) and a first support leg (106) are fixedly connected to the bottom of the outer shell (1).

3. A catalyst-replacement type hydrogenation reactor according to claim 2, characterized in that: The connecting shaft (301) is rotatably connected inside the first connecting tube (104).

4. A catalyst-replacement type hydrogenation reactor according to claim 1, characterized in that: The inlet diffuser (43) is disposed inside the connecting cover (412).

5. A catalyst-replacement type hydrogenation reactor according to claim 1, characterized in that: The feed pipe (41) and the second connecting pipe (413) are both fixedly connected to the top of the outer casing (1).

6. A catalyst-replacement type hydrogenation reactor according to claim 1, characterized in that: The number of the injection pipes (422) is multiple, and they are arranged in a circular array on the connecting ring (421). The number of the injection heads (423) is multiple, and they are arranged in a linear array on the injection pipes (422).

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