A gaseous ammonia buffer tank

Abstract

This utility model discloses a gaseous ammonia buffer tank, including a tank body and a buffering mechanism. The tank body has a buffer cavity, an inlet end, and an outlet end, both of which are connected to the buffer cavity. The buffering mechanism includes a guide component, multiple elastic components, and a blocking component. The guide component is disposed within the buffer cavity and has a guide channel, one end of which is connected to the inlet end. The multiple elastic components are mounted on the guide component and connected to the blocking component, with the blocking component corresponding to the other end of the guide channel. When the blocking component is subjected to the impact force of gaseous ammonia, it can move relative to the guide component. The elastic components can reduce the impact force on the blocking component and drive it to reset. This solves the problem in the prior art where gaseous ammonia easily generates an impact force on the buffer tank when it is delivered, causing the buffer tank to vibrate.

Description

Technical Field

[0001] This utility model relates to the field of synthetic ammonia technology, specifically to a gaseous ammonia buffer tank. Background Technology

[0002] Ammonia synthesis refers to the direct synthesis of ammonia from nitrogen and hydrogen under high temperature, high pressure, and in the presence of a catalyst, which is a basic inorganic chemical process. In the ammonia preparation process, a circulating gas compressor is typically used to ensure that nitrogen and hydrogen fully react with the catalyst. The circulating gas is usually a mixture of ammonia, hydrogen, and nitrogen. During ammonia synthesis, the mixed gas passes through an ammonia cooler, is supplemented with makeup gas, passes through an ammonia separator, and then enters the inlet of the 4M50 compressor's circulating section for pressurization. After passing through an oil separator to remove oil, it enters a heat exchanger. After reacting with the catalyst in the internal components of the ammonia synthesis tower, it enters a synthesis waste heat boiler to recover heat, enters another heat exchanger, and finally passes through a water cooler, a cold exchanger, and an ammonia cooler for cooling. The synthesized ammonia is liquefied and separated from the system, while unreacted nitrogen and hydrogen are recycled.

[0003] During the circulation process, gas transfer between devices is usually done using buffer tanks. Due to gas pulses, if high-velocity ammonia gas directly impacts the inner wall of the buffer tank, it can easily cause the buffer tank to vibrate, thereby causing the equipment connected to the rear end of the buffer tank to vibrate. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a gaseous ammonia buffer tank, which solves the problem that when gaseous ammonia is transported into the buffer tank, it easily generates an impact force on the buffer tank, causing the buffer tank to vibrate.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a gaseous ammonia buffer tank, including

[0007] The tank has a buffer chamber, an air inlet, and an air outlet, both of which are connected to the buffer chamber.

[0008] The buffer mechanism includes an air guide, multiple elastic elements, and a blocking element. The air guide is disposed in the buffer cavity and has an air guide channel. One end of the air guide channel is connected to the air inlet. The multiple elastic elements are mounted on the air guide and connected to the blocking element. The blocking element corresponds to the other end of the air guide channel. When the blocking element is subjected to the impact force of ammonia gas, it can move relative to the air guide. The elastic elements can reduce the impact force on the blocking element and drive the blocking element to reset.

[0009] In one embodiment, the elastic element includes a cylinder, a spring, a guide rod, and a stop. The cylinder is mounted on the air guide. One end of the guide rod passes through the cylinder and is fixedly connected to the stop. The other end of the guide rod is connected to the blocking element. The spring is disposed in the cylinder and sleeved on the guide rod. When the blocking element moves away from the air guide, the guide rod can slide relative to the cylinder, and the stop can compress the spring.

[0010] In one embodiment, the elastic member further includes a connecting portion, which includes a limiting block, a locking nut, and an external thread section. The limiting block is fixed on the guide rod, and the external thread section is located at the other end of the guide rod. The blocking member has multiple through holes. When the other end of the guide rod passes through the through holes, the locking nut engages with the external thread section to fix the blocking member.

[0011] In one embodiment, the blocking member includes a baffle with a groove and a plurality of through holes, the opening end of the groove corresponding to the other end of the air guide channel.

[0012] In one embodiment, the cover is further provided with a plurality of vent holes, and the plurality of vent holes are all connected to the groove.

[0013] In one embodiment, a pressure reducing mechanism is further included. The pressure reducing mechanism includes a sleeve and a plurality of flow-damping plates. The sleeve is disposed in a buffer cavity and one end is fixedly connected to the tank body. One end of the sleeve is connected to a gas guiding channel. The other end of the sleeve is provided with a plurality of gas dissipation holes connected to the buffer cavity. The plurality of flow-damping plates are spaced apart in the sleeve. The flow-damping plates are used to slow down the flow rate of ammonia gas.

[0014] In one embodiment, the pressure reducing mechanism further includes a plurality of air guide tubes, which are mounted on the sleeve, with one end of each air guide tube communicating with each of the air dissipation holes, and the other end of each air guide tube extending to one end close to the sleeve.

[0015] In one embodiment, the sleeve and the can body form an annular cavity, and a desiccant layer is provided inside the annular cavity.

[0016] In one embodiment, the buffer cavity is further provided with a filter layer, and the filter layer is located between the other end of the sleeve and the air outlet.

[0017] In one embodiment, the system further includes a transport mechanism, on which the tank is fixed and the transport mechanism is capable of transporting the tank to a preset location.

[0018] Compared with the prior art, the gaseous ammonia buffer tank provided by this utility model has an air guide component installed in the buffer chamber and has an air guide channel. One end of the air guide channel is connected to the air inlet. Multiple elastic components are installed on the air guide component and connected to the blocking component. The blocking component corresponds to the other end of the air guide channel. When the blocking component is impacted by gaseous ammonia, it can move relative to the air guide component. The elastic components can reduce the impact force on the blocking component and drive the blocking component to reset. When gaseous ammonia is transported and the pressure fluctuates greatly due to changes in flow rate and temperature, the blocking component can effectively reduce the flow rate of gaseous ammonia, and the elastic components can absorb the impact force of gaseous ammonia airflow on the blocking component, effectively preventing gaseous ammonia from directly impacting the buffer tank and causing the buffer tank to vibrate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a gaseous ammonia buffer tank provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the tank provided by this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the blocking component provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the elastic element provided in this embodiment of the utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] To address the technical problem in existing technologies where gaseous ammonia, when transported into a buffer tank, easily generates impact forces that cause vibration in the buffer tank, this invention provides a gaseous ammonia buffer tank. This buffer tank prevents gaseous ammonia from directly impacting the inner wall of the tank. Simultaneously, the buffer tank reduces the flow rate of gaseous ammonia, preventing it from directly entering the next process equipment and causing impacts and vibrations.

[0026] Please see Figures 1-5 , Figures 1-5According to one embodiment of the present invention, a gaseous ammonia buffer tank includes a tank body 1 and a buffer mechanism 2. The tank body 1 has a buffer cavity 1a, an air inlet end 1b, and an air outlet end 1c. The air inlet end 1b and the air outlet end 1c are both connected to the buffer cavity 1a. The buffer mechanism 2 includes an air guide 21, a plurality of elastic elements 22, and a blocking element 23. The air guide 21 is disposed in the buffer cavity 1a and has an air guide channel. One end of the air guide channel is connected to the air inlet end 1b. The plurality of elastic elements 22 are installed on the air guide 21 and connected to the blocking element 23. The blocking element 23 corresponds to the other end of the air guide channel. When the blocking element 23 is subjected to the impact force of gaseous ammonia, it can move relative to the air guide 21. The elastic elements 22 can reduce the impact force on the blocking element 23 and can drive the blocking element 23 to reset.

[0027] Specifically, the air inlet 1b and the air outlet 1c are located at opposite ends of the tank body 1, the air guide 21 is a sleeve and a connecting block fixed on the sleeve, the sleeve has an air guide channel, and the elastic element 22 is installed on the connecting block; in addition, the tank body 1 is also provided with a pressure relief valve and a drain valve that communicate with the buffer chamber 1a.

[0028] In actual use, when gaseous ammonia is delivered to the gas guide channel through the inlet 1b, the gaseous ammonia output from the other end of the gas guide channel will impact the blocking component 23. The blocking component 23 can reduce the flow rate of gaseous ammonia, and when gaseous ammonia impacts the blocking component 23, the blocking component 23 can move away from the gas guide component 21. Multiple elastic components 22 can absorb the impact force of gaseous ammonia on the blocking component 23. When the impact force of gaseous ammonia on the blocking component 23 decreases, the multiple elastic components 22 can release the absorbed impact force, so that the blocking component 23 can be reset, effectively preventing the tank from vibrating.

[0029] It should be noted that, in one embodiment, the elastic element 22 includes a cylinder 221, a spring 222, a guide rod 223, and a stop block 224. The cylinder 221 is mounted on the air guide 21. One end of the guide rod 223 passes through the cylinder 221 and is fixedly connected to the stop block 224. The other end of the guide rod 223 is connected to the blocking element 23. The spring 222 is disposed inside the cylinder 221 and sleeved on the guide rod 223. When the blocking element 23 moves away from the air guide 21, the guide rod 223 can slide relative to the cylinder 221, and the stop block 224 can compress the spring 222.

[0030] It is understandable that when the gaseous ammonia impacts the blocking component 23, it can drive the guide rod 223 to move relative to the cylinder 221, so that the stop block 224 squeezes the spring 222. When the spring 222 is compressed, the spring 222 can absorb the impact force of the gaseous ammonia impacting the blocking component 23, thus preventing the gaseous ammonia from directly impacting the tank.

[0031] It should be noted that, based on the above scheme, in order to facilitate the connection of the blocking member 23, the elastic member 22 further includes a connecting part, which includes a limiting block 225, a locking nut 226, and an external thread section. The limiting block 225 is fixed on the guide rod 223, and the external thread section is located at the other end of the guide rod 223. The blocking member 23 has multiple through holes 232. When the other end of the guide rod 223 passes through the through holes 232, the locking nut 226 engages with the external thread section to fix the blocking member 23.

[0032] Specifically, when one side of the blocking member 23 abuts against the limiting block 225, the other side of the blocking member 23 abuts against the locking nut 226, thus fixing the blocking member 23 and the elastic member 22 together.

[0033] It should be noted that the blocking member 23 is not limited to a specific structure. In one embodiment, the blocking member 23 includes a baffle, on which a groove 231 and a plurality of through holes 232 are provided. The opening end of the groove 231 corresponds to the other end of the air guide channel.

[0034] Understandably, the high-pressure ammonia gas delivered through the other end of the gas guide channel can enter the groove and impact the baffle. Under the impact force of the high-pressure ammonia gas, the baffle can move away from the gas guide component 21.

[0035] In addition, based on the above scheme, the baffle is also provided with a plurality of vent holes 233, and the plurality of vent holes 233 are all connected to the groove 231. It can be understood that the gaseous ammonia entering the groove can be discharged through the plurality of through holes 232 on the side wall of the baffle.

[0036] It should be noted that, based on the above scheme, in order to further ensure the stable operation of the ammonia synthesis equipment, a pressure reducing mechanism 3 is specifically included. The pressure reducing mechanism 3 includes a sleeve 31 and multiple flow-damping plates 32. The sleeve 31 is located in the buffer chamber 1a and one end is fixedly connected to the tank body 1. One end of the sleeve 31 is connected to the gas guiding channel. The other end of the sleeve 31 is provided with multiple gas dissipation holes connected to the buffer chamber 1a. The multiple flow-damping plates 32 are spaced apart in the sleeve 31. The flow-damping plates 32 are used to slow down the flow rate of gaseous ammonia.

[0037] It is understandable that all the flow control plates 32 are perforated plates, with the perforations on adjacent plates being staggered.

[0038] In other embodiments, multiple flow dampers 32 divide the interior of the sleeve 31 into continuous S-shaped channels, and the S-shaped channels are connected to the air guide channel and multiple air diffusers.

[0039] In addition, based on the above scheme, the pressure reducing mechanism 3 also includes a plurality of air guide pipes 33, which are installed on the sleeve 31, and one end of each air guide pipe 33 is connected to each of the air dissipation holes, and the other end of each air guide pipe 33 extends to one end close to the sleeve 31.

[0040] Understandably, the gaseous ammonia inside the sleeve 31 is discharged into the buffer chamber through each of the gas guide tubes 33, which can further reduce the flow rate of the gaseous ammonia.

[0041] It should be noted that, based on the above scheme, the sleeve 31 and the tank 1 form an annular cavity, and a desiccant layer 4 is provided in the annular cavity. It can be understood that after the gaseous ammonia in the sleeve 31 is transported to the buffer cavity through each of the gas guide pipes 33, the gaseous ammonia can also enter the annular cavity, and the gaseous ammonia comes into contact with the desiccant layer 4. The desiccant layer 4 can dry the ammonia. The desiccant used in the desiccant layer 4 can be selected from existing materials according to the actual situation, and no specific limitation is made here.

[0042] In one embodiment, the buffer chamber 1a is further provided with a filter layer 5, and the filter layer 5 is located between the other end of the sleeve 31 and the gas outlet 1c; wherein, the filter layer 5 can not only play a certain filtering role to ensure the quality of subsequent use of gaseous ammonia, but also help to slow down the flow rate of gaseous ammonia, so that the gaseous ammonia flows more evenly and accelerates the buffer balance of gaseous ammonia.

[0043] Based on the above scheme, a transportation mechanism 6 is also included. The tank 1 is fixed on the transportation mechanism 6, which can transport the tank 1 to a preset position. The transportation mechanism 6 is not limited to a specific structure and no other limitations are made here. It should be noted that the transportation mechanism 6 has multiple moving parts, and at least one of the moving parts has a braking function.

[0044] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An ammonia buffer tank, characterized in that include The tank has a buffer chamber, an air inlet, and an air outlet, both of which are connected to the buffer chamber. The buffer mechanism includes an air guide, multiple elastic elements, and a blocking element. The air guide is disposed in the buffer cavity and has an air guide channel. One end of the air guide channel is connected to the air inlet. The multiple elastic elements are mounted on the air guide and connected to the blocking element. The blocking element corresponds to the other end of the air guide channel. When the blocking element is subjected to the impact force of ammonia gas, it can move relative to the air guide. The elastic elements can reduce the impact force on the blocking element and drive the blocking element to reset.

2. The gaseous ammonia buffer tank of claim 1, wherein, The elastic element includes a cylinder, a spring, a guide rod, and a stop block. The cylinder is mounted on the air guide. One end of the guide rod passes through the cylinder and is fixed to the stop block. The other end of the guide rod is connected to the blocking element. The spring is located inside the cylinder and is sleeved on the guide rod. When the blocking element moves away from the air guide, the guide rod can slide relative to the cylinder, and the stop block can compress the spring.

3. The gaseous ammonia buffer tank of claim 2, wherein, The elastic element also includes a connecting part, which includes a limiting block, a locking nut, and an external thread section. The limiting block is fixed on the guide rod, and the external thread section is located at the other end of the guide rod. The blocking member has multiple through holes. When the other end of the guide rod passes through the through hole, the locking nut engages with the external thread section to fix the blocking member.

4. The gaseous ammonia buffer tank of claim 3, wherein, The blocking component includes a baffle, which has a groove and a plurality of through holes, the opening end of the groove corresponding to the other end of the air guide channel.

5. The ammonia buffer tank of claim 4, wherein, The cover is also provided with multiple ventilation holes, and all of the ventilation holes are connected to the groove.

6. The gaseous ammonia buffer tank according to any one of claims 1 to 5, characterized in that It also includes a pressure reducing mechanism, which includes a sleeve and multiple flow-damping plates. The sleeve is located inside the buffer chamber and one end is fixedly connected to the tank body. One end of the sleeve is connected to the gas guiding channel. The other end of the sleeve is provided with multiple gas dissipation holes connected to the buffer chamber. Multiple flow-damping plates are spaced apart inside the sleeve. The flow-damping plates are used to slow down the flow rate of ammonia gas.

7. The gaseous ammonia buffer tank of claim 6, wherein, The pressure reducing mechanism also includes multiple air guide tubes, which are installed on the sleeve. One end of each air guide tube is connected to each of the air dissipation holes, and the other end of each air guide tube extends to one end close to the sleeve.

8. The gaseous ammonia buffer tank of claim 7, wherein, The sleeve and the tank body form an annular cavity, and a desiccant layer is provided inside the annular cavity.

9. The gaseous ammonia buffer tank of claim 8, wherein, The buffer chamber is also provided with a filter layer, and the filter layer is located between the other end of the sleeve and the air outlet.

10. The gaseous ammonia buffer tank of claim 9, wherein, It also includes a transport mechanism, on which the tank is fixed and the transport mechanism is capable of transporting the tank to a preset location.

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