Ammonia gas and methanol homogeneous distribution device

Abstract

The utility model discloses a homogeneous distribution device for gaseous ammonia and methanol, which belongs to the technical field of gaseous ammonia and methanol and comprises an outer kettle body, an inner kettle body arranged inside the outer kettle body, an inner rotating stand arranged on the inner wall of the inner kettle body, a top cover arranged at the top of the outer kettle body, and a servo motor arranged in the center of the top of the top cover. An annular driving frame is arranged on the periphery of the servo motor; according to the utility model, residues on the inner wall of the inner kettle body can be scraped and cleaned by utilizing the distance between the guide scraping plate and the inner kettle body to rotate at a fixed speed and a fixed distance, and methanol liquid close to the inner wall area of the inner kettle body is disturbed by combining with the turbulent flow groove, so that part of the methanol liquid is prevented from continuously staying in a local area; and the gas ammonia can be differentiated by the microporous metal film and then diffused into the inner kettle body, so that the gas ammonia is continuously leaked along the microporous metal film area exposed on the outer side of the support ring frame and is uniformly distributed with the approximately stirred methanol liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of gas ammonia and methanol, in particular to a gas ammonia and methanol homogeneous distribution device. Background Art

[0002] Ammonia is a colorless gas with a pungent odor. It is lighter than air and easily soluble in water. Methanol, also known as hydroxymethane or wood alcohol, is an organic compound and the simplest saturated monohydric alcohol. In industry and scientific research, ammonia and methanol are sometimes used simultaneously or are related to each other. For example, under the conditions of pressure of 5-20MPa and temperature of 370-420 degrees Celsius, with activated alumina as a catalyst, methanol and ammonia can react to produce a mixture of monomethylamine, dimethylamine and trimethylamine. After further distillation, these mixtures can obtain pure monomethylamine (CH3NH2). The fusion of ammonia and methanol is actually a chemical reaction process that can produce a variety of useful organic compounds, but it also requires strict control of reaction conditions and ensuring safe operation.

[0003] In combination with the above content, it should be explained that: in the process of distributing gaseous ammonia and methanol in the traditional reactor, part of the methanol liquid is affected by factors such as the retention position and uneven stirring, resulting in a large difference in distribution between it and the gaseous ammonia, which not only causes the waste and loss of part of the gaseous ammonia, but also makes the overall reaction efficiency low and the reaction time long, seriously affecting the subsequent use effect;

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide a homogeneous distribution device of gaseous ammonia and methanol, which is used by the linkage and mutual matching of an inner rotating frame and a top cover structure, a guide scraper follows the inner rotating frame to rotate in an inner kettle body, and the distance between the guide scraper and the inner kettle body is used to rotate at a fixed speed and distance, so as to scrape and clean the residues on the inner wall of the inner kettle body, and the methanol liquid near the inner wall of the inner kettle body is disturbed in combination with a spoiler groove to avoid the continuous stay of part of the methanol liquid in the local area, thereby promoting the uniform distribution of the overall methanol liquid and gaseous ammonia, improving the conversion rate of raw materials, reducing the generation of by-products, and improving the reaction efficiency and the purity of the product.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a gas ammonia and methanol homogeneous distribution device, comprising an outer kettle body, an inner kettle body is arranged inside the outer kettle body, an inner rotating frame is arranged on the inner wall of the inner kettle body, a top cover is arranged on the top of the outer kettle body, a servo motor is arranged at the center of the top of the top cover, an annular driving frame is arranged on the outer periphery of the servo motor, and a base is arranged at the bottom of the outer kettle body;

[0007] A center frame is arranged at the center of the top of the base, and multiple groups of cone seats are arranged in a circular array around the center frame. A dispersion mechanism is arranged on the top of the cone seat, and the dispersion mechanism includes a hollow tube. Multiple groups of microporous metal membranes are arranged at equal intervals around the hollow tube.

[0008] Preferably, a cooling cavity is provided between the outer kettle body and the inner kettle body, a refrigerant pipe annularly wound around the outer wall of the inner kettle body is provided inside the cooling cavity, and a thermal conductive material filled outside the refrigerant pipe is provided inside the cooling cavity.

[0009] Preferably, a plurality of groups of spoiler grooves are arranged in a circular array on the outer peripheral frame of the inner rotating frame, and a scraper plate close to the inner wall of the inner kettle is provided on the outer wall of the spoiler groove.

[0010] Preferably, the top of the top cover is provided with a plurality of groups of external valves arranged in a circular array with the servo motor as the central axis, the inner ring of the annular drive frame is provided with a worm gear transmission connected to the servo motor, the bottom output end of the servo motor is provided with a transmission sleeve extending to the top of the inner kettle body, and the bottom of the annular drive frame is provided with a guide ring extending to the top of the inner kettle body.

[0011] Preferably, a discharge valve is arranged in a ring on the outer periphery of the bottom of the center frame at the top of the base, a stirring shaft is arranged on the top of the center frame, and multiple groups of stirring paddles are arranged at equal intervals on the outer periphery of the stirring shaft, and a guide frame close to the cone seat is arranged on the outer side of the top of the base.

[0012] Preferably, a plurality of groups of support ring frames are arranged at equal intervals on the outer circumference of the hollow tube, and the microporous metal membrane is installed on the upper and lower inclined surfaces of the support ring frames, and a plurality of groups of built-in valves are arranged inside the hollow tube close to the support ring frames.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model uses the inner rotating frame and the top cover structure in linkage and mutual matching, and the guide scraper follows the inner rotating frame to rotate in the inner kettle body, and the distance between the guide scraper and the inner kettle body is used to rotate at a fixed speed and distance to achieve scraping and cleaning of the residue on the inner wall of the inner kettle body, and the turbulent groove is combined to disturb the methanol liquid near the inner wall of the inner kettle body to prevent part of the methanol liquid from staying in the local area, thereby promoting the uniform distribution of the overall methanol liquid and the gaseous ammonia, improving the conversion rate of the raw materials, reducing the generation of by-products, and improving the reaction efficiency and the purity of the product;

[0015] (2) The utility model uses a uniform dispersion mechanism to assist the stirring shaft, and utilizes the reverse stirring between the stirring shaft and the inner rotating frame to cause chaotic disturbance of the methanol liquid in the inner kettle body, and the microporous metal membrane differentiates the gaseous ammonia and diffuses it into the inner kettle body, thereby causing it to continuously leak out along the microporous metal membrane area exposed on the outer side of the support ring frame, and to be evenly distributed between the methanol liquid approaching after being stirred. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection structure between the outer kettle body and the inner kettle body of the utility model;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the inner kettle body of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the base of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the utility model's uniform dispersion mechanism;

[0022] Figure 6 It is a structural schematic diagram of the top cover of the utility model.

[0023] Legend: 1. Outer kettle body; 101. Cooling chamber; 102. Refrigerant pipe; 2. Inner kettle body; 201. Inner rotating frame; 202. Scraper guide; 203. Turbine groove; 3. Top cover; 301. Servo motor; 302. Ring drive frame; 303. External valve; 304. Transmission sleeve; 305. Guide ring; 4. Base; 401. Discharge valve; 402. Conical seat; 403. Center frame; 404. Stirring shaft; 5. Dispersion mechanism; 501. Hollow tube; 502. Support ring frame; 503. Microporous metal membrane; 504. Built-in valve. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1: This embodiment is used to solve the problem that in the process of uniformly distributing gaseous ammonia and methanol in a traditional reactor, part of the methanol liquid is affected by factors such as the retention position and uneven stirring, resulting in a large difference in distribution between it and the gaseous ammonia, causing waste and loss of part of the gaseous ammonia, and the concentration of the prepared methanol gaseous ammonia liquid is unstable, which seriously affects the subsequent use effect.

[0026] See also Figure 1 - Figure 4As shown, this embodiment is a homogeneous distribution device of gas ammonia and methanol, comprising an outer kettle body 1, an inner kettle body 2 is arranged inside the outer kettle body 1, an inner rotating frame 201 is arranged on the inner wall of the inner kettle body 2, a top cover 3 is arranged on the top of the outer kettle body 1, a servo motor 301 is arranged at the center of the top of the top cover 3, an annular driving frame 302 is arranged on the periphery of the servo motor 301, and a base 4 is arranged at the bottom of the outer kettle body 1. When in use, the servo motor 301 is connected to the stirring shaft 404 through a transmission sleeve 304, and the stirring shaft 404 drives multiple groups of stirring paddles installed on the periphery to rotate between the upper and lower adjacent support ring frames 502, so as to promote the methanol liquid located in the inner kettle body 2 and close to the support ring frame 502 to continuously run and flow, so as to avoid the methanol liquid from being granulated near the support ring frame 502, resulting in excessive concentration of gas ammonia in the local methanol liquid;

[0027] A cooling chamber 101 is provided between the outer kettle body 1 and the inner kettle body 2, a refrigerant pipe 102 is provided in the cooling chamber 101 and is annularly wound around the outer wall of the inner kettle body 2, a thermal conductive material is provided in the cooling chamber 101 and is filled outside the refrigerant pipe 102, the thermal conductive material in the cooling chamber (101) assists the refrigerant pipe (102) in absorbing the heat diffused in the inner kettle body (2), thereby forming a cold-heat exchange, and ensuring the required temperature conditions for the mixing preparation of the methanol liquid and the gaseous ammonia in the inner kettle body 2, and the thermal conductive material comprises graphene and carbon fiber;

[0028] The top of the top cover 3 is provided with a plurality of groups of external valves 303 arranged in a circular array with the servo motor 301 as the central axis, the inner ring of the annular driving frame 302 is provided with a worm gear connected to the servo motor 301, the bottom output end of the servo motor 301 is provided with a transmission sleeve 304 extending to the top of the inner kettle body 2, and the bottom of the annular driving frame 302 is provided with a guide ring 305 extending to the top of the inner kettle body 2;

[0029] The servo motor 301 is connected to the annular driving frame 302 through a worm gear. The annular driving frame 302 drives the guide ring 305 to rotate along the bottom of the top cover 3. The bottom of the guide ring 305 is clamped with the top of the inner rotating frame 201, and drives the inner rotating frame 201 to rotate at a uniform speed along the inside of the inner kettle body 2. The rotation of the inner rotating frame 201 drives the guide scraper 202 to rotate synchronously. The methanol liquid near the inner area of ​​the inner kettle body 2 is pushed by the guide scraper 202, and flows along the spoiler groove 203 to the stirring shaft 404 and the supporting ring frame 502. The pushed methanol liquid and the stirring shaft 404 are connected. The methanol liquid stirred by the paddles impacts each other, causing the two to flow chaotically in the area near the support ring frame 502, and disperses the differential gas ammonia overflowing from the microporous metal membrane 503 on the support ring frame 502, prompting it to be quickly distributed in the methanol liquid in the inner kettle body 2, avoiding the slow flow or even retention of the methanol liquid near the inner wall of the inner kettle body 2 where the stirring paddle cannot intervene. A plurality of groups of spoiler grooves 203 are arranged in a circular array on the outer peripheral frame of the inner rotating frame 201, and a guide scraper 202 close to the inner wall of the inner kettle body 2 is provided on the outer wall of the spoiler groove 203.

[0030] Example 2: Please refer to Figure 1 , Figure 5 , Figure 6 As shown, a gas ammonia and methanol homogeneous distribution device of this embodiment includes a center frame 403 arranged at the top center of a base 4, multiple groups of cone seats 402 are arranged in a circular array around the center frame 403, and a uniform dispersion mechanism 5 is arranged on the top of the cone seat 402. The uniform dispersion mechanism 5 includes a hollow tube 501, and multiple groups of microporous metal membranes 503 are arranged at equal intervals around the hollow tube 501;

[0031] A discharge valve 401 is arranged in a ring on the bottom periphery of the center frame 403 at the top of the base 4, a stirring shaft 404 is arranged on the top of the center frame 403, and a plurality of stirring paddles are arranged at equal intervals on the periphery of the stirring shaft 404, and a guide frame 405 close to the cone seat 402 is arranged on the outer side of the top of the base 4;

[0032] A plurality of support ring frames 502 are arranged at equal intervals on the outer circumference of the hollow tube 501, and the microporous metal membrane 503 is installed on the upper and lower slopes of the support ring frame 502. A plurality of built-in valves 504 are arranged inside the hollow tube 501 near the support ring frame 502. The built-in valve 504 is a type of diverter valve. The external equipment is connected to the hollow tube 501 through a pipe fitting. The built-in valve 504 guides the local gas ammonia in the hollow tube 501 into the support ring frame 502. Under continuous injection pressure, the gas ammonia flows along the micropores of the microporous metal membrane 503. Overflow, its overflow is on the inclined membrane cross section of the microporous metal membrane 503 exposed on the upper and lower sides of the support ring frame 502, and the micropores of the microporous metal membrane 503 will differentiate and refine the gas ammonia. In the case of its overflow, it will fully contact with the passing methanol liquid to ensure that the gas ammonia is evenly distributed in the methanol liquid, thereby ensuring high-efficiency continuous operation. Through this device, the mass transfer efficiency is high, the diameter of the gas ammonia can reach 3um, the operating flexibility can reach 60-150%, the resistance drop is less than 20KPa, and the concentration of gas ammonia in methanol liquid is stable at 7-9%.

[0033] Combining Example 1 and Example 2, it can be known that the distance between the scraper plate 202 and the inner kettle body 2 can be used to rotate at a constant speed and distance to scrape and clean the residue on the inner wall of the inner kettle body 2, and the spoiler groove 203 can be used to disturb the methanol liquid near the inner wall of the inner kettle body 2 to prevent part of the methanol liquid from staying in the local area, thereby promoting the uniform distribution of the overall methanol liquid and the gaseous ammonia. The microporous metal membrane 503 can also differentiate the gaseous ammonia and diffuse it into the inner kettle body 2, causing it to continuously leak out along the area of ​​the microporous metal membrane 503 exposed on the outside of the support ring frame 502, and evenly distribute it with the methanol liquid approaching after stirring, so that the reaction materials are fully in contact, the conversion rate of the raw materials is improved, the generation of by-products is reduced, and the reaction efficiency and the purity of the product are improved.

[0034] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A homogeneous distribution device for gaseous ammonia and methanol, comprising an outer kettle body (1), characterized in that: An inner kettle body (2) is arranged inside the outer kettle body (1), an inner rotating frame (201) is arranged on the inner wall of the inner kettle body (2), a top cover (3) is arranged on the top of the outer kettle body (1), a servo motor (301) is arranged at the center of the top of the top cover (3), an annular driving frame (302) is arranged on the outer periphery of the servo motor (301), and a base (4) is arranged at the bottom of the outer kettle body (1); A center frame (403) is arranged at the center of the top of the base (4), and multiple groups of cone seats (402) are arranged in a circular array on the periphery of the center frame (403). A uniform dispersion mechanism (5) is arranged on the top of the cone seat (402), and the uniform dispersion mechanism (5) includes a hollow tube (501), and multiple groups of microporous metal membranes (503) are arranged at equal intervals on the periphery of the hollow tube (501).

2. The homogeneous distribution device of ammonia and methanol according to claim 1, characterized in that: A cooling chamber (101) is provided between the outer kettle body (1) and the inner kettle body (2); a refrigerant pipe (102) annularly wound around the outer wall of the inner kettle body (2) is provided inside the cooling chamber (101); and a thermal conductive material filled outside the refrigerant pipe (102) is provided inside the cooling chamber (101).

3. The homogeneous distribution device of ammonia and methanol according to claim 1, characterized in that: A plurality of groups of flow-disturbing grooves (203) are arranged in a circular array on the outer peripheral frame of the inner rotating frame (201), and a scraper plate (202) close to the inner wall of the inner kettle body (2) is arranged on the outer wall of the flow-disturbing groove (203).

4. The homogeneous distribution device of ammonia and methanol according to claim 1, characterized in that: The top of the top cover (3) is provided with a plurality of groups of external valves (303) arranged in a circular array with the servo motor (301) as the central axis; the inner ring of the annular drive frame (302) is provided with a worm gear transmission-connected to the servo motor (301); the bottom output end of the servo motor (301) is provided with a transmission sleeve (304) extending to the top of the inner kettle body (2); and the bottom of the annular drive frame (302) is provided with a guide ring (305) extending to the top of the inner kettle body (2).

5. The homogeneous distribution device of ammonia and methanol according to claim 1, characterized in that: A discharge valve (401) is arranged at the top of the base (4) in an annular arrangement on the outer periphery of the bottom of the center frame (403); a stirring shaft (404) is arranged at the top of the center frame (403), and a plurality of groups of stirring paddles are arranged at equal intervals on the outer periphery of the stirring shaft (404); a guide frame (405) close to the conical seat (402) is arranged on the outer side of the top of the base (4).

6. The homogeneous distribution device of ammonia and methanol according to claim 1, characterized in that: A plurality of support ring frames (502) are arranged at equal intervals on the outer circumference of the hollow tube (501), and the microporous metal membrane (503) is installed on the upper and lower inclined surfaces of the support ring frames (502). A plurality of built-in valves (504) are arranged inside the hollow tube (501) near the support ring frames (502).

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