Reaction device for synthesizing ammonia gas by nitrogen and hydrogen

Abstract

The utility model relates to the field of reaction devices, in particular to a reaction device for synthesizing ammonia gas by using nitrogen and hydrogen, which comprises a reaction tank body, a top seat connected to an opening of the reaction tank body, a first driving part on the top seat connected with a movable cover body arranged in the reaction tank body in a sealing and sliding manner, and a second driving part on the top seat, a reaction enhancing part on the movable cover body is inserted into the reaction tank body and is connected with a second driving part arranged on the top seat; a nitrogen input pipe with a one-way gas inlet valve, a hydrogen input pipe with a one-way gas inlet valve and an ammonia output pipe with a one-way gas outlet valve are fixedly arranged on the bottom surface of the reaction tank body. According to the reaction device for synthesizing the ammonia gas by using the nitrogen and the hydrogen, before the hydrogen and the nitrogen are introduced, the gas in the reaction tank body can be discharged, a clean environment is created, unnecessary components in reactants are effectively reduced, the purity of the ammonia gas is favorably improved, and the quality and the efficiency of the ammonia gas are ensured.

Description

Technical Field

[0001] The utility model relates to the field of reaction devices, and more specifically, to a reaction device for synthesizing ammonia from nitrogen and hydrogen. Background Art

[0002] Ammonia is one of the important inorganic chemical products and occupies an important position in the national economy. In addition to liquid ammonia which can be directly used as fertilizer, nitrogen fertilizers used in agriculture, such as urea, ammonium nitrate, ammonium phosphate, ammonium chloride, and various nitrogen-containing compound fertilizers, are all made from ammonia. The annual global ammonia synthesis output has reached more than 100 million tons, of which about 80% of ammonia is used to produce chemical fertilizers and 20% is used as raw materials for other chemical products. With the development of science and technology, ammonia synthesis products are also more and more widely used in multiple fields. In the existing ammonia synthesis process technology, ordinary reaction tanks are often used. During synthesis, hydrogen and nitrogen are transported into the reaction tank for mixing. However, when introducing hydrogen and nitrogen, the air and impurities in the reaction tank cannot be completely discharged, and finally the obtained reactants contain unnecessary components, which affect the purity and efficiency of synthesized ammonia. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a reaction device for synthesizing ammonia from nitrogen and hydrogen.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A reaction device for synthesizing ammonia from nitrogen and hydrogen, comprising: a reaction tank body, the opening of the reaction tank body is connected to a top seat, a first driving part on the top seat is connected to a movable cover body that is hermetically slid in the reaction tank body, a reaction enhancement part on the movable cover body is inserted into the reaction tank body, and the reaction enhancement part is connected to a second driving part installed on the top seat; a nitrogen input pipe with a one-way intake valve, a hydrogen input pipe with a one-way intake valve, and an ammonia output pipe with a one-way outlet valve are fixedly arranged on the bottom surface of the reaction tank body.

[0006] Further, it further comprises: an annular electric heater for heating the gas inside the reaction tank body, and the annular electric heater is sleeved on the outer wall of the reaction tank body.

[0007] Further, it further comprises: a catalyst addition pipe fixedly arranged on the movable cover body.

[0008] Further, the movable cover body comprises: an annular sliding cover hermetically slid on the inner wall of the reaction tank body and a circular rotating cover hermetically rotated on the inner ring surface of the annular sliding cover; the first driving part comprises a driving push rod, and both ends of the driving push rod are respectively connected to the annular sliding cover and the top seat; a reaction enhancement part is connected to the circular rotating cover.

[0009] Further, a transverse retaining ring is fixedly connected to the outer side surface of the circular rotating cover, and the transverse retaining ring is hermetically slidably arranged in the annular groove on the inner annular surface of the annular sliding cover.

[0010] Further, one or more axial convex ribs are provided on the inner wall of the reaction tank body, and the axial convex ribs are hermetically slidably arranged in the axial grooves on the side of the annular sliding cover.

[0011] Further, the reaction enhancement part includes: a stirring slide plate, the middle part of the stirring slide plate is hermetically slidably arranged in the longitudinal slide hole of the circular rotating cover, the top of the stirring slide plate is fixedly connected to the pressure-bearing sliding seat, the pressure-bearing sliding seat is slidably arranged on the force-transmitting shaft at the center of the top surface of the circular rotating cover, and the tension spring fixedly connected between the pressure-bearing sliding seat and the circular rotating cover is sleeved on the force-transmitting shaft.

[0012] Further, the reaction enhancement part further includes: a compression spring sleeved on the force-transmitting shaft, and both ends of the compression spring are respectively connected to the pressure-bearing sliding seat and a retaining ring fixed on the force-transmitting shaft.

[0013] Further, a side block fixedly connected to the lower part of the side of the stirring slide plate can be clamped in the bayonet at the bottom of the circular rotating cover, and the bayonet is communicated with the longitudinal slide hole.

[0014] Further, the force-transmitting shaft is slidably arranged in the force-transmitting pipe, the force-transmitting key on the inner wall of the force-transmitting pipe is slidably arranged in the force-transmitting slideway on the outer wall of the force-transmitting shaft, and the force-transmitting pipe is rotatably connected in the central hole of the top seat; the second driving part includes a motor, and a first sprocket on the force-transmitting pipe is connected to a second sprocket on the output shaft of the motor through a chain.

[0015] As can be seen from the above solution, compared with the traditional reaction equipment, a reaction device for synthesizing ammonia from nitrogen and hydrogen of the present utility model can control the movable cover body to contact the inner bottom surface of the reaction tank body before introducing hydrogen and nitrogen, discharge the gas in the reaction tank body, create a clean environment, and then when controlling the movable cover body to be away from the inner bottom surface of the reaction tank body, introduce hydrogen and nitrogen into the reaction tank body through the nitrogen input pipe and the hydrogen input pipe respectively for mixing, effectively reducing the unnecessary components in the reactants, being beneficial to improving the purity of ammonia, and ensuring the quality and efficiency of synthesizing ammonia.

[0016] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the attached drawings, makes detailed descriptions as follows. Description of the Drawings

[0017] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall schematic diagram provided by the embodiment of the present utility model Figure 1 ;

[0019] Figure 2 The overall schematic diagram provided by the embodiment of the present utility model Figure 2 ;

[0020] Figure 3 The overall cross-sectional view provided by the embodiment of the present utility model;

[0021] Figure 4 The structural schematic diagram of the reaction tank body provided by the embodiment of the present utility model;

[0022] Figure 5 The structural schematic diagram of the movable cover body provided by the embodiment of the present utility model;

[0023] Figure 6 The structural schematic diagram of the reaction enhancement part and the circular rotating cover provided by the embodiment of the present utility model.

[0024] Icon: Reaction tank body 1; Top seat 2; First driving part 3; Movable cover body 4; Reaction enhancement part 5; Second driving part 6; Nitrogen input pipe 7; Hydrogen input pipe 8; Ammonia output pipe 9; Annular sliding cover 10; Circular rotating cover 11; Transverse retaining ring 12; Axial convex rib 13; Stirring slide plate 14; Pressure-bearing sliding seat 15; Force-transmitting shaft 16; Tensile spring 17; Compression spring 18; Retaining ring 19; Force-transmitting pipe 20; First sprocket 21; Second sprocket 22. Specific embodiments

[0025] In order to clearly and completely describe the technical solutions in the embodiments of the present utility model below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be understood that the terms such as "having", "including" and "comprising" used herein do not exclude the existence or addition of one or more other elements or their combinations.

[0027] Please refer to Figures 1-6, a reaction device for synthesizing ammonia from nitrogen and hydrogen provided by the utility model includes: a reaction tank body 1, a top seat 2 is connected to the opening of the reaction tank body 1, a first driving part 3 on the top seat 2 is connected to a movable cover body 4 that is hermetically slid in the reaction tank body 1, a reaction enhancing part 5 on the movable cover body 4 is inserted into the reaction tank body 1, and the reaction enhancing part 5 is connected to a second driving part 6 installed on the top seat 2; a nitrogen input pipe 7 with a one-way intake valve, a hydrogen input pipe 8 with a one-way intake valve, and an ammonia output pipe 9 with a one-way exhaust valve are fixedly arranged on the bottom surface of the reaction tank body 1; it further includes: an annular electric heater for heating the gas inside the reaction tank body 1, and the annular electric heater is sleeved on the outer wall of the reaction tank body 1.

[0028] The working principle and technical effects of the above technical solution are as follows:

[0029] For the reaction device for synthesizing ammonia from nitrogen and hydrogen of the utility model, before introducing hydrogen and nitrogen, the air and impurities inside the reaction tank body 1 can be discharged first. When discharging, control the first driving part 3 to start. After the first driving part 3 starts, it drives the movable cover body 4 to slide downward in the reaction tank body 1, so that the movable cover body 4 finally contacts the inner bottom surface of the reaction tank body 1, thereby discharging the gas inside the reaction tank body 1. A nitrogen input pipe 7 with a one-way intake valve and a hydrogen input pipe 8 with a one-way intake valve are fixedly arranged on the bottom surface of the reaction tank body 1. The nitrogen input pipe 7 is connected to a nitrogen storage tank, and the hydrogen input pipe 8 is connected to a hydrogen storage tank. The opening angles of the flow valves on the nitrogen input pipe 7 and the hydrogen input pipe 8 can be restricted according to the required ratio of nitrogen and hydrogen, so as to meet different ratio requirements; then control the first driving part 3 to drive the movable cover body 4 to slide upward in the reaction tank body 1. When controlling the movable cover body 4 to be away from the inner bottom surface of the reaction tank body 1, introduce hydrogen and nitrogen into the inside of the reaction tank body 1 through the nitrogen input pipe 7 and the hydrogen input pipe 8 respectively for mixing, effectively reducing the unnecessary components in the reactants, which is beneficial to improving the purity of ammonia and ensuring the quality and efficiency of synthesizing ammonia; during the mixing process, the second driving part 6 can also be turned on. The second driving part 6 drives the reaction enhancing part 5 to stir the hydrogen and nitrogen inside the reaction tank body 1. The nitrogen and hydrogen are evenly mixed in the reaction tank body 1 to promote the reaction. The reaction enhancing part 5 can effectively mix the gas molecules together, increasing their contact area, thereby improving the reaction efficiency; an annular electric heater is sleeved on the outer wall of the reaction tank body 1 to adjust the reaction temperature inside the reaction tank body 1, and increasing the temperature inside the reaction tank body 1 can also increase the gas pressure, meeting the requirements of different reaction conditions; after synthesizing ammonia, control the movable cover body 4 inside the reaction tank body 1 to finally contact the inner bottom surface of the reaction tank body 1, thereby discharging the synthesized ammonia and the unreacted gas inside the reaction tank body 1 through the ammonia output pipe 9, which is convenient for subsequent operations.

[0030] The described reaction device for synthesizing ammonia from nitrogen and hydrogen further includes: a catalyst addition tube fixedly arranged on the movable cover body 4, which is convenient for adding materials such as iron-based catalysts that promote the reaction into the reaction tank body 1.

[0031] The movable cover body 4 includes: an annular sliding cover 10 that is hermetically slid on the inner wall of the reaction tank body 1 and a circular rotating cover 11 that is hermetically rotated on the inner ring surface of the annular sliding cover 10; the first driving part 3 includes a driving push rod, and both ends of the driving push rod are respectively connected to the annular sliding cover 10 and the top seat 2; a reaction enhancement part 5 is connected to the circular rotating cover 11. A transverse blocking ring 12 is fixedly connected to the outer side surface of the circular rotating cover 11, and the transverse blocking ring 12 is hermetically slid in the annular groove on the inner ring surface of the annular sliding cover 10. The driving push rod is an electric telescopic rod or an electric push rod, which can drive the annular sliding cover 10 to hermetically slide on the inner wall of the reaction tank body 1, so as to realize the pumping in or out of gas, and the operation is very convenient. The circular rotating cover 11 is hermetically rotated on the inner ring surface of the annular sliding cover 10, so that the circular rotating cover 11 can cooperate with the reaction enhancement part 5 to rotate, without affecting the stirring movement of the mixed gas. The transverse blocking ring 12 is hermetically slid in the annular groove on the inner ring surface of the annular sliding cover 10, which can improve the relative connection stability between the circular rotating cover 11 and the annular sliding cover 10. One or more axial ridges 13 are provided on the inner wall of the reaction tank body 1, and the axial ridges 13 are hermetically slid in the axial grooves on the side of the annular sliding cover 10, which is beneficial to improving the up and down movement stability of the annular sliding cover 10.

[0032] The reaction enhancement part 5 includes: a stirring slide plate 14, the middle part of the stirring slide plate 14 is hermetically slid in the longitudinal slide hole of the circular cover 11, the top of the stirring slide plate 14 is fixedly connected to the pressure-bearing slide seat 15, the pressure-bearing slide seat 15 is slid on the force-transmitting shaft 16 at the center of the top surface of the circular cover 11, and the tension spring 17 fixedly connected between the pressure-bearing slide seat 15 and the circular cover 11 is sleeved on the force-transmitting shaft 16. The reaction enhancement part 5 further includes: a compression spring 18 sleeved on the force-transmitting shaft 16, and both ends of the compression spring 18 are respectively connected to the pressure-bearing slide seat 15 and the retaining ring 19 fixed on the force-transmitting shaft 16. The side block fixedly connected to the lower part of the side of the stirring slide plate 14 can be clamped in the bayonet at the bottom of the circular cover 11, and the bayonet is communicated with the longitudinal slide hole. The force-transmitting shaft 16 is slid in the force-transmitting pipe 20, the force-transmitting key on the inner wall of the force-transmitting pipe 20 is slid in the force-transmitting slideway on the outer wall of the force-transmitting shaft 16, and the force-transmitting pipe 20 is rotatably connected in the central hole of the top seat 2; the second driving part 6 includes a motor, and the first sprocket 21 on the force-transmitting pipe 20 is connected to the second sprocket 22 on the output shaft of the motor through a chain. After the motor is started, it can drive the second sprocket 22 to rotate. When the second sprocket 22 rotates, it drives the first sprocket 21 to rotate through the chain. When the first sprocket 21 rotates, it drives the force-transmitting pipe 20 to rotate. When the force-transmitting pipe 20 rotates, it drives the force-transmitting shaft 16 to rotate through the cooperation of the force-transmitting key and the force-transmitting slideway, and does not affect the relative sliding between the force-transmitting shaft 16 and the force-transmitting pipe 20. When the force-transmitting shaft 16 rotates, it can drive the pressure-bearing slide seat 15, the circular cover 11 and the stirring slide plate 14 to rotate. When the circular cover 11 is away from the inner bottom surface of the reaction tank body 1, the stirring slide plate 14 extends below the longitudinal slide hole of the circular cover 11 under the elastic force of the tension spring 17 and the compression spring 18. At this time, the gas inside the reaction tank body 1 can be mixed and stirred. When the circular cover 11 approaches and gradually contacts the inner bottom surface of the reaction tank body 1, the stirring slide plate 14 first contacts the inner bottom surface of the reaction tank body 1 and generates an upward pressure. The stirring slide plate 14 slides upward in the longitudinal slide hole of the circular cover 11, the pressure-bearing slide seat 15 slides upward on the force-transmitting shaft 16 to stretch the tension spring 17, and compresses the compression spring 18 between the pressure-bearing slide seat 15 and the retaining ring 19, so that the bottom of the stirring slide plate 14 is retracted into the longitudinal slide hole of the circular cover 11. At this time, the side block fixedly connected to the lower part of the side of the stirring slide plate 14 can be clamped in the bayonet at the bottom of the circular cover 11, and the lower surface of the stirring slide plate 14 is coplanar with the lower surface of the circular cover 11, which does not affect the discharge of gas.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0034] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Although the embodiments of the present utility model have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the examples shown and described herein.

Claims

1. A reaction device for synthesizing ammonia from nitrogen and hydrogen, characterized in that, it includes: A reaction tank body (1), the opening of the reaction tank body (1) is connected to a top seat (2), the first driving part (3) on the top seat (2) is connected to a movable cover body (4) that is hermetically slid in the reaction tank body (1), the reaction enhancement part (5) on the movable cover body (4) is inserted into the reaction tank body (1), and the reaction enhancement part (5) is connected to a second driving part (6) installed on the top seat (2); A nitrogen input pipe (7) with a one-way intake valve, a hydrogen input pipe (8) with a one-way intake valve, and an ammonia output pipe (9) with a one-way exhaust valve are fixedly arranged on the bottom surface of the reaction tank body (1).

2. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 1, characterized in that, it further includes: An annular electric heater for heating the gas inside the reaction tank body (1), and the annular electric heater is sleeved on the outer wall of the reaction tank body (1).

3. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 1, characterized in that, it further includes: A catalyst addition pipe fixedly arranged on the movable cover body (4).

4. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 1, characterized in that, The movable cover body (4) includes: an annular sliding cover (10) that is hermetically slid on the inner wall of the reaction tank body (1) and a circular rotating cover (11) that is hermetically rotated on the inner ring surface of the annular sliding cover (10); The first driving part (3) includes a driving push rod, and both ends of the driving push rod are respectively connected to the annular sliding cover (10) and the top seat (2); A reaction enhancement part (5) is connected to the circular rotating cover (11).

5. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 4, characterized in that, A horizontal blocking ring (12) is fixedly connected to the outer side surface of the circular rotating cover (11), and the horizontal blocking ring (12) is hermetically slid in the annular groove on the inner ring surface of the annular sliding cover (10).

6. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 4, characterized in that, One or more axial convex ribs (13) are provided on the inner wall of the reaction tank body (1), and the axial convex ribs (13) are hermetically slid in the axial grooves on the side of the annular sliding cover (10).

7. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 4, characterized in that, The reaction enhancement part (5) includes: a stirring slide plate (14), the middle part of the stirring slide plate (14) is hermetically slid in the longitudinal slide hole of the circular rotating cover (11), the top of the stirring slide plate (14) is fixedly connected to a pressure-bearing sliding seat (15), the pressure-bearing sliding seat (15) is slid on the transmission shaft (16) at the center of the top surface of the circular rotating cover (11), and a tension spring (17) fixedly connected between the pressure-bearing sliding seat (15) and the circular rotating cover (11) is sleeved on the transmission shaft (16).

8. The reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 7, characterized in that, The reaction enhancement part (5) further includes: a compression spring (18) sleeved on the transmission shaft (16), and both ends of the compression spring (18) are respectively connected to the pressure-bearing sliding seat (15) and a retaining ring (19) fixed on the transmission shaft (16).

9. A reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 8, characterized in that, the side blocks fixedly connected to the lower part of the side of the stirring slide plate (14) can be clamped in the bayonet at the bottom of the circular rotating cover (11), and the bayonet is communicated with the longitudinal sliding hole.

10. A reaction device for synthesizing ammonia from nitrogen and hydrogen according to claim 7, characterized in that, the force transmission shaft (16) slides in the force transmission pipe (20), the force transmission keys on the inner wall of the force transmission pipe (20) slide in the force transmission chutes on the outer wall of the force transmission shaft (16), and the force transmission pipe (20) is rotatably connected in the central hole of the top seat (2); the second driving part (6) includes a motor, and a first sprocket (21) on the force transmission pipe (20) is connected to a second sprocket (22) on the output shaft of the motor through a chain.

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