A liquid ammonia and gaseous ammonia separation device

Abstract

This utility model discloses a liquid ammonia and gaseous ammonia separation device, including a shell and a gas guiding section. The shell has a separation chamber and an air inlet, the air inlet being connected to the separation chamber and tangent to its inner wall. The gas guiding section is connected to the shell and located within the separation chamber. The gas guiding section has a gas guiding channel with a guiding end connecting to the separation chamber and an outlet for connecting to the outside of the shell. The outlet, air inlet, and guiding end are arranged sequentially near the bottom of the separation chamber. This design can mitigate the adverse effects of reduced flow rate, improve gas-liquid separation efficiency, and has a simple structure and low cost.

Description

Technical Field

[0001] This utility model relates to the field of liquid ammonia and gaseous ammonia separation technology, specifically to a liquid ammonia and gaseous ammonia separation device. Background Technology

[0002] To effectively remove liquid ammonia entrained in gaseous ammonia, the gas-liquid mixture of gaseous ammonia is usually passed to a gas-liquid separator to remove the liquid ammonia from the mixture.

[0003] Publication number CN208115331U discloses a gas-liquid cyclone separator. A gas and liquid mixture enters the cyclone separation chamber through the air inlet and is tangentially rotated and separated along the inner wall of the separation chamber, discarding liquid particles. The gas separated by rotation is filtered and buffered by a wire mesh demister to separate smaller particles such as dust. Finally, the gas is output through the exhaust port. The separated liquid and dust enter the bottom of the upper cyclone separation chamber for storage due to gravity.

[0004] However, the cyclone separator mentioned above relies on the gas entering the container tangentially to form a vortex, and uses centrifugal force to throw the droplets against the wall and then flow along the wall to the bottom for collection, while the gas is discharged from the top. When the gas flow rate is insufficient, the centrifugal force weakens, which reduces the gas-liquid separation effect and is not conducive to the removal of entrained liquid ammonia from gaseous ammonia. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a liquid ammonia and gaseous ammonia separation device. This solves the technical problem in the prior art where cyclone separators rely on gas entering the container tangentially to form a vortex, using centrifugal force to throw droplets against the wall and then flow along the wall to the bottom for collection, while the gas is discharged from the top. When the gas flow rate is insufficient, the centrifugal force weakens, which reduces the gas-liquid separation effect and is not conducive to removing entrained liquid ammonia from gaseous ammonia.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a liquid ammonia and gaseous ammonia separation device, comprising:

[0008] A housing having a separation chamber and an air inlet, the air inlet communicating with the separation chamber and being tangent to the inner wall of the separation chamber; and

[0009] An air guide is connected to the housing and located in the separation chamber. The air guide is provided with an air guide channel. The air guide channel has an air guide end that communicates with the separation chamber and an air outlet end that communicates with the outside of the housing. The air outlet end, the air inlet and the air guide end are arranged sequentially along the direction close to the bottom of the separation chamber.

[0010] In some embodiments, the distance between the air inlet and the air guide end is a, and the distance between the air inlet and the air outlet end is b, satisfying a < b.

[0011] In some embodiments, the liquid ammonia and gaseous ammonia separation device further includes two sets of baffles. The two sets of baffles are disposed in the gas guiding channel and are respectively connected to the opposite side walls of the gas guiding channel. The two sets of baffles are arranged alternately and at intervals along the direction away from the bottom of the separation chamber, and the projection portions of two adjacent baffles at the bottom of the separation chamber overlap.

[0012] In some embodiments, the baffle is a corrugated plate, and the corrugation extends in a direction parallel to the horizontal direction.

[0013] In some embodiments, the housing further includes a transition cavity and an exhaust port, the exhaust port communicating with the outside and the transition cavity, the transition cavity being located above the separation cavity and separated from the separation cavity, and communicating with the exhaust end;

[0014] The liquid ammonia and gaseous ammonia separation equipment also includes a filtration structure, which is located in the transition chamber and between the gas outlet and the exhaust port, for filtering the liquid phase in the gas.

[0015] In some embodiments, the filtration structure includes a microfiltration membrane filter and a wire mesh demister, wherein the microfiltration membrane filter and the wire mesh demister are disposed in the transition cavity and located between the air outlet and the exhaust port, and are arranged sequentially in the direction close to the exhaust port.

[0016] In some embodiments, the liquid ammonia and gaseous ammonia separation device further includes a partition plate, which is disposed between the transition chamber and the separation chamber, and has a connection port communicating with the transition chamber;

[0017] The air guide is located on the partition and is connected to the housing via the partition. The air outlet is connected to the connection port.

[0018] In some embodiments, the housing includes a bottom shell and an end cap, the bottom shell and the end cap together enclosing an inner cavity, and being detachably connected to the end cap;

[0019] The partition is located inside the bottom shell and divides the inner cavity from top to bottom into the transition cavity and the separation cavity. The exhaust port is located on the end cap.

[0020] In some embodiments, the end cap is provided with a fixing hole, the bottom shell is provided with an assembly hole corresponding to the fixing hole, and the shell further includes an assembly bolt and an assembly nut. The assembly bolt passes through the fixing hole and the assembly hole, and the assembly nut is threadedly connected to the assembly bolt and is located on the side of the assembly hole away from the fixing hole.

[0021] In some embodiments, the housing further includes a drain port and a drain valve, the drain port being connected to the outside and the bottom of the separation chamber, and the drain valve being disposed at the drain port.

[0022] Compared with the prior art, in the liquid ammonia and gaseous ammonia separation device provided by this utility model, the gaseous ammonia mixture is sent into the separation chamber through the air inlet and rotates tangentially along the inner wall of the separation chamber. Since the air inlet is located between the air outlet and the air guide end, the ammonia gas, which is less dense than air, rises to the top of the separation chamber during the rotation process until subsequent gaseous ammonia is continuously input. When the gaseous ammonia fills the top of the air guide end, the gaseous ammonia that was input first is pushed down by the gaseous ammonia that was input later, and then enters the air guide channel through the air guide end, and finally is discharged from the air outlet of the air guide section.

[0023] In this process, the gas-liquid mixture input from the inlet rotates and centrifuges, causing some of the liquid phase in the mixture to be directly thrown against the inner wall of the separation chamber, achieving initial gas-liquid separation. Furthermore, ammonia gas, which is less dense than air, first rotates upwards from the inlet to the top of the separation chamber, and then moves downwards from the top of the separation chamber into the gas guide channel. This increases the vertical opposing stroke of the ammonia gas, allowing the liquid droplets entrained in the ammonia gas to gradually coalesce into larger droplets and fall during the up-and-down movement, achieving secondary gas-liquid separation. This mitigates the adverse effects of reduced flow velocity, improves the gas-liquid separation effect, and is characterized by its simple structure and low cost. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the liquid ammonia and gaseous ammonia separation device provided in this embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A partial schematic diagram of the liquid ammonia to gaseous ammonia separation equipment.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Housing; 1a. Separation chamber; 1b. Air inlet; 1c. Exhaust port; 1d. Liquid drain port; 1e. Transition chamber; 11. Bottom shell; 12. End cap; 2. Air guide section; 2a. Air guide channel; 21. Air guide end; 22. Air outlet end; 3. Baffle plate; 4. Filtration structure; 41. Microfiltration membrane filter; 42. Wire mesh demister; 5. Partition plate; 5a. Connection port; 6. Detection instrument. Detailed Implementation

[0028] 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] To address the technical problem in existing cyclone separators that rely on tangential gas entry into a container to form a vortex, using centrifugal force to throw droplets against the wall and collect them at the bottom while the gas exits from the top, this invention provides a liquid ammonia and gas ammonia separation device that can achieve at least two gas-liquid separations. This mitigates the adverse effects of reduced flow rate, improves gas-liquid separation efficiency, and offers a simple structure at a low cost.

[0030] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a schematic diagram of the structure of a liquid ammonia and gaseous ammonia separation device in one embodiment of the present invention. The liquid ammonia and gaseous ammonia separation device includes a housing 1 and a gas guiding part 2. The housing 1 has a separation chamber 1a and an air inlet 1b. The air inlet 1b is connected to the separation chamber 1a and is tangent to the inner wall of the separation chamber 1a. The gas guiding part 2 is connected to the housing 1 and is located in the separation chamber 1a, and is spaced apart from the bottom of the separation chamber 1a. The gas guiding part 2 is provided with a gas guiding channel 2a. The gas guiding channel 2a has a gas guiding end 21 that connects to the separation chamber 1a and an air outlet 22 that connects to the outside of the housing 1. The air outlet 22, the air inlet 1b and the gas guiding end 21 are arranged sequentially in the direction close to the bottom of the separation chamber 1a.

[0031] In the liquid ammonia and gaseous ammonia separation device provided by this utility model, the gaseous ammonia mixture is fed into the separation chamber 1a through the air inlet 1b and rotates tangentially along the inner wall of the separation chamber 1a. Since the air inlet 1b is located between the air outlet 22 and the air guide end 21, the ammonia gas, which has a density less than air, rises to the top of the separation chamber 1a during the rotation process until subsequent gaseous ammonia is continuously input. When the gaseous ammonia fills the top of the air guide end 21, the gaseous ammonia that was input first is pushed down by the gaseous ammonia that was input later, and then enters the air guide channel 2a through the air guide end 21, and finally is discharged from the air outlet 22 of the air guide section 2.

[0032] In this process, the gas-liquid mixture input from the inlet 1b is centrifuged, causing some of the liquid phase in the mixture to be directly thrown against the inner wall of the separation chamber 1a, achieving initial gas-liquid separation. Furthermore, ammonia gas, which is less dense than air, first rotates upwards from the inlet 1b to the top of the separation chamber 1a, and then moves downwards from the top of the separation chamber 1a into the gas guide channel 2a. This increases the vertical opposing stroke of the ammonia gas, allowing the liquid droplets entrained in the ammonia gas to gradually coalesce into larger droplets and fall during the up-and-down movement, achieving secondary gas-liquid separation. This mitigates the adverse effects of reduced flow velocity, improves the gas-liquid separation effect, and is characterized by its simple structure and low cost.

[0033] It should be understood that the air outlet 22 and the air guide 21 are respectively provided with openings.

[0034] In one embodiment, the distance between the air inlet 1b and the air guide end 21 is a, and the distance between the air inlet 1b and the air outlet end 22 is b, satisfying a < b.

[0035] In this embodiment, the air inlet 1b is positioned close to the air guide end 21 to further increase the vertical stroke of the ammonia gas and improve the droplet collection and separation capability. It should be understood that the relationship between the height H of the separation chamber 1a of the housing 1 and the height L of the air guide channel 2a must conform to the material separation principle to ensure sufficient residence time for gas separation. If the air guide 2 is inserted too shallowly, the gas may be discharged before sufficient separation; if it is inserted too deeply, it may increase the pressure drop or cause backflow.

[0036] Therefore, in one embodiment, the ratio of the inner diameter of the separation chamber 1a to the inner diameter of the air guide channel 2a is controlled at 3:1, the ratio of the overall height of the housing 1 to the height of the air guide channel 2a is controlled at 4:1, and the height of the air guide channel 2a is 0.7 times the height of the separation chamber 1a.

[0037] In addition, the flow rate must be considered. The flow rate at the inlet 1b needs to generate sufficient centrifugal force, but it cannot be too high, otherwise there will be secondary entrainment. Specifically, the flow rate at the inlet 1b is generally between 15-25 m / s, and can be adjusted according to specific needs.

[0038] In one embodiment, the liquid ammonia and gaseous ammonia separation device further includes two sets of baffles 3. The two sets of baffles 3 are disposed in the gas guiding channel 2a and are respectively connected to the opposite side walls of the gas guiding channel 2a. The two sets of baffles 3 are arranged alternately and at intervals along the direction away from the bottom of the separation chamber 1a. The projection portions of two adjacent baffles 3 at the bottom of the separation chamber 1a overlap.

[0039] In this embodiment, when the gaseous ammonia entering the gas guide channel 2a passes through the flow channel formed by the two baffles 3, the droplets entrained in the gaseous ammonia collide with the baffles 3 one after another, causing the droplets in the gaseous ammonia to be adsorbed and aggregated on the baffles 3. When they aggregate to a certain extent, they settle under the action of gravity, further realizing gas-liquid separation. It should be understood that each group has multiple baffles.

[0040] In one embodiment, the baffle 3 is a corrugated plate, and the corrugation extends in a direction parallel to the horizontal direction.

[0041] In this embodiment, once the gas carrying droplets enters the flow channel formed by the baffle 3, it is divided into multiple regions by the baffle 3. During its passage through each region, the gas undergoes multiple rapid changes in flow direction. Under the action of inertial force, the droplets on the blade collide with each other. The corrugated design of the baffle 3 increases the contact surface area, allowing the droplets to effectively adhere to the blade surface through adsorption and coalescence. Finally, relying on gravity, the droplets enter the blade interlayer and converge into a stream, achieving effective gas purification. It should be noted that in one embodiment, the ratio of wave height to wave distance (H / P) of the baffle 3 is designed to be 1:5.

[0042] In one embodiment, the housing 1 further includes a transition cavity 1e and an exhaust port 1c. The exhaust port 1c connects to the outside and the transition cavity 1e. The transition cavity 1e is located above the separation cavity 1a and is separated from the separation cavity 1a, and is connected to the gas outlet 22. The liquid ammonia and gaseous ammonia separation device also includes a filter structure 4, which is disposed in the transition cavity 1e and located between the gas outlet 22 and the exhaust port 1c, for filtering the liquid phase in the gas.

[0043] In this embodiment, a transition chamber 1e is also provided, so that the gas after the liquid phase is separated by the baffle plate 3 passes through the filter structure 4 in the transition chamber 1e again to remove the liquid phase, thereby further improving the liquid phase separation effect. It should be noted that the filter structure 4 can be a microfiltration membrane filter 41, a wire mesh demister 42, or other forms.

[0044] In one embodiment, the filtration structure 4 includes a microfiltration membrane filter 41 and a wire mesh demister 42. The microfiltration membrane filter 41 and the wire mesh demister 42 are disposed in the transition cavity 1e and located between the air outlet 22 and the exhaust port 1c, and are arranged sequentially in the direction close to the exhaust port 1c.

[0045] In this embodiment, the microfiltration membrane filter 41 uses a microfiltration-grade stainless steel fiber sintered felt filter element, which can effectively separate solid impurities or droplets in the process gas range of 1-10μm at low speed and high precision, with low pressure drop and excellent corrosion resistance. The wire mesh demister 42 uses high-precision stainless steel wire mesh, made into a V-shape, with an S-shaped internal channel to increase the flow area and guide the flow, thereby increasing the filtration efficiency and enabling the effective separation of droplets in the process gas range of 10-50μm.

[0046] It should be noted that the microfiltration membrane filter element uses stainless steel fiber sintered felt, with the fibers sintered together at the contact points, making it strong and foldable. The pore size has a gradient structure, belonging to a fixed-type irregular pore size deep filtration medium, eliminating media migration and impact unloading phenomena, and preventing secondary pollution. The filter element can be made into a cylindrical or folded cylindrical structure, with full penetration welding, high strength, good sealing performance, and can withstand pressure differentials greater than 1MPa. It also has the following advantages:

[0047] High porosity and high precision: Stainless steel fiber felt made of micron-level ultrafine fibers has very high porosity (up to 90%) and excellent air permeability. The porosity and air permeability are 2 to 3 times and 30 to 100 times that of sintered powder materials, respectively. Filter cartridges made of this material have extremely low fluid resistance and very high filtration precision.

[0048] High dirt-holding capacity: The unique three-dimensional multi-layered deep filtration structure4 has a remarkably high capacity for holding pollutants, 3 to 5 times that of sintered powder materials. The folded filter area is 3 to 4 times that of a cylindrical filter, which can increase its service life by 10 to 20 times.

[0049] High temperature and corrosion resistant: Stainless steel fiber sintered felt has very good mechanical strength and toughness at high temperatures and can work in high temperature, low temperature and corrosive environments.

[0050] Economical and durable: Filter cartridges made of stainless steel fiber sintered felt can be washed, regenerated, and reused repeatedly, providing long-term benefits from a one-time investment.

[0051] In addition, in one embodiment, a detection instrument 6 is installed on the housing 1, and a detection instrument 6 is installed in both the separation chamber 1a and the transition chamber 1e. The detection instrument 6 detects indicators such as pressure difference to control the regulating valve to achieve automatic switching backwashing and indicator stabilization, ensuring long-term stable operation of the device. This includes sensor selection, data acquisition system, control algorithm (such as PID, model predictive control), actuator (such as valve, motor), and human-machine interface. The system monitors and automatically adjusts the control valve in real time to cope with changes in operating conditions. Through the integration of the above technologies, the real-time monitoring and adjustment system can significantly improve the stability (disturbance suppression rate > 90%), economy (energy consumption reduced by 10% to 20%), safety (failure rate reduced by 40%), and operating cycle (extended by 80%) of this device, becoming a core support for intelligent manufacturing. Phased implementation: first single-variable PID control, then extended to multi-variable MPC, and finally the introduction of AI algorithms to achieve autonomous optimization.

[0052] Meanwhile, each component can employ superhydrophobic surfaces or nanomaterials to enhance droplet coalescence. Introducing nanoscale rough structures, such as nanopillars, nanowires, or nanoparticles, into the superhydrophobic surface creates a microscopic energy gradient.

[0053] As droplets move across a surface, they spontaneously migrate towards lower energy regions driven by gradients, promoting contact and coalescence between adjacent droplets. The micro / nano composite structure of the superhydrophobic surface places droplets in a Cassie state (suspended at the top of the structure), significantly reducing the solid-liquid contact area and decreasing adhesion forces. Droplets are more prone to sliding, colliding, and coalescing. In the early stages of condensation, the nanostructure provides a high density of nucleation sites, leading to the rapid generation and dense distribution of small droplets. As droplets grow, adjacent droplets coalesce due to van der Waals forces and capillary action, while the larger, coalesced droplets detach due to gravity or surface tension gradients.

[0054] Specifically, nanostructures such as carbon nanotubes and graphene sheets, prepared by methods such as chemical vapor deposition (CVD) and electrochemical anodizing, can precisely control surface morphology and optimize the pinning effect of droplet contact lines. Hierarchical nano- to micro-structures (such as lotus leaf-inspired surfaces) can balance droplet retention and movement, promoting aggregation and shedding.

[0055] In addition, circular or near-circular cross-sections are preferred due to their small perimeter and low friction loss. Sharp edges should be avoided, and rounded transitions (R / D ≥ 0.2) should be used to reduce flow separation. The expansion angle should be < 7° to avoid flow separation, and the contraction angle should be < 30°.

[0056] A tree-like fractal flow channel with three fractal levels and a 1.5mm diameter end channel is employed. All components are coated with polytetrafluoroethylene (PTFE) (roughness Ra=1.6μm). Micro-guide vanes, approximately 5% of the flow channel height, are placed at key locations to disrupt boundary layer thickening. Wall-mounted turbulence structures, including V-shaped microgrooves with a depth of 0.1–0.3mm, reduce turbulence intensity.

[0057] In one embodiment, the liquid ammonia and gaseous ammonia separation device further includes a partition 5, which is disposed between the transition chamber 1e and the separation chamber 1a, and is provided with a connection port 5a that connects to the transition chamber 1e; the gas guide 2 is disposed on the partition 5 and is connected to the housing 1 via the partition 5, and the gas outlet 22 is connected to the connection port 5a.

[0058] In this embodiment, the transition cavity 1e and the separation cavity 1a are separated by a partition 5, and the air guide 2 is integrally connected to the partition 5, resulting in a relatively compact structure. It should be noted that the air guide 2 can be configured as an air guide seat, a guide box, or other forms. Specifically, in this solution, the air guide 2 is configured as a conductor cylinder.

[0059] It should be noted that the shell 1 can be configured as a separation box, separation barrel, or separation vessel with a separation cavity 1a. Specifically, in one embodiment, the shell 1 is configured as a cylindrical reaction vessel, and correspondingly, its inner cavity is also configured as cylindrical.

[0060] In one embodiment, the housing 1 includes a bottom shell 11 and an end cap 12. The bottom shell 11 and the end cap 12 together enclose an inner cavity and are detachably connected to the end cap 12. A partition 5 is disposed in the bottom shell 11 and divides the inner cavity from top to bottom into a transition cavity 1e and a separation cavity 1a. An exhaust port 1c is disposed on the end cap 12.

[0061] In this embodiment, the end cap 12 can be periodically disassembled to clean the internal filter structure 4. Specifically, in this solution, the microfiltration membrane filter 41 is disposed in the filter chamber of the bottom shell 11, and the wire mesh demister 42 is installed on the end cap 12.

[0062] It should be noted that the end cap 12 and the bottom shell 11 can be detachably connected by a snap fastener, pin, or other structure.

[0063] In one embodiment, the end cap 12 is provided with a fixing hole, the bottom shell 11 is provided with an assembly hole corresponding to the fixing hole, and the shell 1 also includes an assembly bolt and an assembly nut. The assembly bolt passes through the fixing hole and the assembly hole, and the assembly nut is threadedly connected to the assembly bolt and is located on the side of the assembly hole away from the fixing hole.

[0064] In this embodiment, the end cap 12 and the bottom shell 11 are detachably connected by the fitting of assembly bolts, assembly nuts and corresponding holes, resulting in a simple and reliable structure.

[0065] In one embodiment, the housing 1 also has a drain port 1d and a drain valve, the drain port 1d being connected to the outside and the bottom of the separation chamber 1a, and the drain valve being located at the drain port 1d.

[0066] In this embodiment, the liquid phase at the bottom can be periodically discharged through the drain valve, achieving sustainable separation.

[0067] To better understand this utility model, the following is combined with... Figure 1 and Figure 2 The technical solution of this utility model is described in detail below:

[0068] In this design, gaseous ammonia enters the housing 1 and rotates between the housing 1 and the gas guide section 2. Under centrifugal force, larger droplets are separated to the bottom, while other droplets follow the gaseous ammonia up and down, eventually collecting and settling. Finally, the gas flow, carrying unseparated impurities, flows upwards from the bottom of the gas guide channel 2a and is separated again by the baffle plate 3. After this separation unit, 70%–90% of the droplets are effectively separated. Thus, the above components constitute a cyclone separation unit: gas-liquid separation is achieved through gravity and centrifugal force.

[0069] The gas discharged from the outlet 22 of the self-guided gas channel 2a then passes sequentially through the microfiltration membrane filter 41 and the wire mesh demister 42. The wire mesh demister 42 uses high-precision stainless steel wire mesh, made into a V-shape with an S-shaped internal channel to increase the flow area and guide the flow, thereby increasing the filtration efficiency and effectively separating droplets in the 10-50μm range in the process gas. Furthermore, the microfiltration membrane filter 41 uses a microfiltration-grade stainless steel fiber sintered felt filter element, which can effectively separate solid impurities or droplets in the 1-10μm range in the process gas at low speed and high precision, with low pressure drop and excellent corrosion resistance.

[0070] Thus, this solution can effectively separate liquid droplets entrained in gaseous ammonia, with high separation efficiency, low pressure drop, small footprint, good corrosion resistance, separation accuracy ≤1μm, and separation efficiency greater than 99.9%, completely solving the problem of severe liquid entrainment in gaseous ammonia causing the ice machine to malfunction.

[0071] 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 apparatus for separating liquid ammonia from gaseous ammonia, characterized by, include: The housing has a separation chamber and an air inlet, the air inlet being connected to the separation chamber and tangent to the inner wall of the separation chamber; and An air guide is connected to the housing and located in the separation chamber. The air guide is provided with an air guide channel. The air guide channel has an air guide end that communicates with the separation chamber and an air outlet end that communicates with the outside of the housing. The air outlet end, the air inlet and the air guide end are arranged sequentially along the direction close to the bottom of the separation chamber.

2. The liquid and gas ammonia separation apparatus of claim 1, wherein, The distance between the air inlet and the air guide end is a, and the distance between the air inlet and the air outlet end is b, satisfying a < b.

3. The liquid and gaseous ammonia separation apparatus of claim 1, wherein, The liquid ammonia and gaseous ammonia separation equipment also includes two sets of baffles. The two sets of baffles are located in the gas guiding channel and are respectively connected to the opposite side walls of the gas guiding channel. The two sets of baffles are arranged alternately and at intervals along the direction away from the bottom of the separation chamber. The projection portions of two adjacent baffles at the bottom of the separation chamber overlap.

4. The liquid and gaseous ammonia separation apparatus of claim 3, wherein, The baffle is a corrugated plate, and the corrugation extends in a direction parallel to the horizontal direction.

5. The liquid and gaseous ammonia separation apparatus of claim 1 wherein, The housing also has a transition cavity and an exhaust port. The exhaust port connects to the outside and the transition cavity. The transition cavity is located above the separation cavity and is separated from the separation cavity, and is connected to the air outlet. The liquid ammonia and gaseous ammonia separation equipment also includes a filtration structure, which is located in the transition chamber and between the gas outlet and the exhaust port, for filtering the liquid phase in the gas.

6. The liquid and gaseous ammonia separation apparatus of claim 5, wherein, The filtration structure includes a microfiltration membrane filter and a wire mesh demister. The microfiltration membrane filter and the wire mesh demister are disposed in the transition cavity and located between the air outlet and the exhaust port, and are arranged sequentially in the direction close to the exhaust port.

7. The liquid and gaseous ammonia separation apparatus of claim 5 wherein, The liquid ammonia and gaseous ammonia separation equipment also includes a partition plate, which is disposed between the transition chamber and the separation chamber, and is provided with a connection port communicating with the transition chamber; The air guide is located on the partition and is connected to the housing via the partition. The air outlet is connected to the connection port.

8. The liquid and gaseous ammonia separation apparatus of claim 7, wherein, The housing includes a bottom shell and an end cap, the bottom shell and the end cap together enclose an inner cavity, and are detachably connected to the end cap; The partition is located inside the bottom shell and divides the inner cavity from top to bottom into the transition cavity and the separation cavity. The exhaust port is located on the end cap.

9. The liquid and gaseous ammonia separation apparatus of claim 8, wherein, The end cap is provided with a fixing hole, and the bottom shell is provided with an assembly hole corresponding to the fixing hole. The shell also includes an assembly bolt and an assembly nut. The assembly bolt passes through the fixing hole and the assembly hole, and the assembly nut is threadedly connected to the assembly bolt and is located on the side of the assembly hole away from the fixing hole.

10. The liquid and gaseous ammonia separation apparatus according to claim 1, wherein, The housing also has a drain port and a drain valve. The drain port is connected to the outside and the bottom of the separation chamber, and the drain valve is located at the drain port.

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