An ammonia treatment system

Abstract

The application relates to an ammonia treatment system and relates to the technical field of ammonia treatment. In order to solve the problems of low ammonia treatment efficiency and large water resource consumption, the ammonia treatment system comprises a knocking separation tank, a recovery tank, a water tank device and a water regeneration device, a knocking separation tank is connected with an engine liquid discharge branch; a liquid ammonia separation recovery branch is arranged between the bottom of the knocking separation tank and the recovery tank, an ammonia gas recirculation branch is arranged at the lower part of the recovery tank; an ammonia gas separation and adsorption branch is arranged between the top of the knocking separation tank and the water tank device; a saturated ammonia water branch is arranged between the water tank device and the water regeneration device; a regenerated water branch is further arranged between the water regeneration device and the water tank device, an ammonia solution discharge branch is arranged at the lower part of the water regeneration device, an exhaust mast is arranged at the top of the water tank device, and a fan device is arranged on the exhaust mast. The application can efficiently treat ammonia, and reduces water consumption and sewage production.

Description

Technical Field

[0001] This application relates to the field of ammonia treatment technology, and in particular to an ammonia treatment system. Background Technology

[0002] Ammonia, as a basic industrial gas, occupies an irreplaceable position in refrigeration engineering, fertilizer synthesis, chemical catalysis, ship exhaust gas purification, and engine fluid treatment due to its high specific heat capacity, strong reactivity, and low cost. In marine power systems, ammonia is often used as a clean fuel for dual-fuel engines or as a reducing agent in selective catalytic reduction of exhaust gases to reduce nitrogen oxide emissions. In the industrial refrigeration field, ammonia refrigerant has become an ideal substitute for Freon due to its environmentally friendly properties. However, ammonia has strong irritant properties and is flammable and explosive. If efficient separation and harmless treatment cannot be achieved in the process of engine fluid treatment, chemical exhaust gas treatment, or ship exhaust gas treatment, it will lead to a surge in environmental pollution, equipment corrosion, and explosion risks, seriously threatening production safety and the ecological environment.

[0003] Current ammonia treatment devices operating in environments such as ships generally suffer from low efficiency in reducing ammonia concentration, making it difficult to achieve rapid reduction. Furthermore, the treatment process consumes a large amount of water, increasing operating costs. Additionally, the wastewater generated is difficult to treat effectively using conventional shipboard wastewater treatment systems, thus requiring improvement. Utility Model Content

[0004] To address the problems of low ammonia treatment efficiency and high water consumption, this application provides an ammonia treatment system.

[0005] The ammonia treatment system provided in this application adopts the following technical solution:

[0006] An ammonia treatment system includes an impact separation tank, a recovery tank, a water tank assembly, and a water regeneration device. The water tank assembly contains water, and the water regeneration device contains a catalyst. The impact separation tank is connected to an engine drain branch for connecting ammonia-containing fluid from an engine. A liquid ammonia separation and recovery branch is connected between the bottom of the impact separation tank and the recovery tank. The lower part of the recovery tank is connected to an ammonia recirculation branch for returning liquid ammonia to the supply system. An ammonia separation and adsorption branch is connected between the top of the impact separation tank and the water tank assembly. A saturated ammonia water branch for conveying saturated ammonia water is connected between the water tank assembly and the water regeneration device. A regenerated water branch for returning regenerated water is also connected between the water regeneration device and the water tank assembly. The lower part of the water regeneration device is connected to an ammonia solution discharge branch for discharging the reaction solution. An exhaust mast is connected to the top of the water tank assembly, and a fan assembly is installed on the exhaust mast.

[0007] By adopting the above technical solution, including a striking separator, a recovery tank, a water tank device, and a water regeneration device, the engine drain branch introduces ammonia-containing fluid into the striking separator. The striking separator introduces liquid ammonia into the recovery tank through a liquid ammonia separation and recovery branch. The recovery tank sends the liquid ammonia back to the supply system through an ammonia recirculation branch. The striking separator also introduces gaseous ammonia into the water tank device through an ammonia separation and adsorption branch. The water tank device delivers saturated ammonia water through a saturated ammonia water branch. The water regeneration device returns regenerated water to the water tank device through a regenerated water branch and discharges ammonia solution through an ammonia solution discharge branch. The exhaust mast is connected to the top of the water tank device and is equipped with a fan device.

[0008] When ammonia is processed, the ammonia-containing fluid from the engine enters the impact separator tank via the engine drain line. Through gravity settling and centrifugal swirling, coarse gas-liquid separation is achieved. High-concentration gaseous ammonia rises to the top due to density differences, while liquid ammonia settles to the bottom. The high-concentration gaseous ammonia is then introduced into the water tank via the ammonia separation and adsorption line. Liquid ammonia at the bottom of the tank is transported to the lower liquid phase zone of the recovery tank for centralized recovery via the liquid ammonia separation and recovery line. Trace amounts of residual gaseous ammonia are introduced into the upper gas phase zone of the recovery tank via the ammonia separation and recovery line, while the lower liquid ammonia is returned to the engine ammonia supply system via the ammonia recirculation line for recycling. Pre-stored water in the water tank comes into full contact with the gaseous ammonia to form saturated ammonia water. This saturated ammonia water is then transported to the water tank via the saturated ammonia water line. The regeneration unit contains a catalyst that neutralizes ammonia and generates water. The regenerated water returns to the water tank through a regenerated water branch, while the ammonia solution is discharged through an ammonia solution discharge branch. This solution can be used in the fertilizer industry. When the saturated water cannot absorb the ammonia, a blower mixes the ammonia with air, rapidly diluting the ammonia concentration. Once the ammonia concentration drops below the required level, it is discharged from the exhaust mast. The unit also features a three-stage ammonia inlet branch: an ammonia inlet branch connected to the plant's ventilation system; an ammonia discharge branch that treats leaked ammonia from equipment pipelines; and a purging ammonia branch that receives ammonia replaced by nitrogen purging. All these components converge into the water tank for unified water washing and catalytic treatment, achieving centralized and harmless disposal of ammonia from multiple sources.

[0009] By incorporating a shock separation pipe, recovery tank, water tank device, and water regeneration device, ammonia gas can be recovered and treated efficiently. High-concentration gaseous ammonia is introduced into the water tank device for water washing and absorption through the shock separation tank, while liquid ammonia is recycled through the recovery tank. The water tank device and water regeneration device work together to achieve a high water reuse rate through a closed-loop circulation of saturated ammonia water transportation, catalysis, and reclaimed water reuse, thereby reducing water consumption and wastewater generation and lowering operating costs. At the same time, multi-source ammonia gas treatment is achieved through multiple branches to meet the ammonia gas treatment needs in ship scenarios.

[0010] Optionally, an ammonia separation and recovery branch for recovering residual gaseous ammonia is also connected between the impact separation tank and the recovery tank. Pneumatic valves for controlling the on / off state of each branch are respectively installed on the liquid ammonia separation and recovery branch, the ammonia separation and recovery branch, the ammonia recirculation branch, the saturated ammonia water branch, and the regenerated water branch.

[0011] By adopting the above technical solution, an ammonia separation and recovery branch is connected between the impact separation tank and the recovery tank. At the same time, pneumatic valves are installed on the liquid ammonia separation and recovery branch, the ammonia gas separation and recovery branch, the ammonia gas recirculation branch, the saturated ammonia water branch, and the regenerated water branch. Through the setting of the ammonia gas separation and recovery branch and the pneumatic valves, the ammonia gas separation and recovery branch realizes the recovery of residual gaseous ammonia, which is used to recover the trace amount of residual gaseous ammonia in the impact separation tank. At the same time, the pneumatic valves are used to control the precise switching of the on and off of each branch.

[0012] Optionally, the recovery tank is also connected to a nitrogen supply branch, which is equipped with a second pneumatic valve for nitrogen supply.

[0013] By adopting the above technical solution, a nitrogen supply branch is connected to the recovery tank, and a second pneumatic valve for nitrogen supply is installed on the nitrogen supply branch; by setting up the nitrogen supply branch, the recovery tank can be safely emptied when the engine drain branch is switched, ensuring the safety of the system.

[0014] Optionally, the nitrogen supply branch is connected to a nitrogen discharge branch, and a nitrogen discharge pneumatic valve is provided on the nitrogen discharge branch. The nitrogen supply branch is also provided with a first nitrogen supply pneumatic valve for controlling the overall nitrogen supply.

[0015] By adopting the above technical solution, the nitrogen supply branch and the nitrogen discharge branch are connected in parallel. The former is responsible for introducing high-purity nitrogen into the recovery tank for exhaust, while the latter is used to cut off the nitrogen supply path. When it is necessary to switch pipelines, the first nitrogen supply pneumatic valve and the second nitrogen supply pneumatic valve are opened simultaneously, while the nitrogen discharge pneumatic valve is closed. The purge is performed by using a high-speed nitrogen flow to force the residual ammonia in the upper gas phase zone of the recovery tank to be discharged through the nitrogen discharge branch. With the nitrogen discharge branch, the nitrogen discharge pneumatic valve, and the first nitrogen supply pneumatic valve, the overall on / off control is achieved through the first nitrogen supply pneumatic valve, and the discharge branch quickly cuts off the supply path through the nitrogen discharge pneumatic valve. The operation is convenient and risk-free.

[0016] Optionally, the exhaust mast is connected to a blower branch, the blower device is arranged at the end of the blower branch, and the exhaust mast is also equipped with an ammonia concentration detector for monitoring the emission concentration.

[0017] By adopting the above technical solution, the blower unit is connected to the exhaust mast via a blower branch, and an ammonia concentration detector is integrated on the exhaust mast. Through the setting of the blower branch and the ammonia concentration detector, ventilation and real-time concentration monitoring of the exhaust gas are realized. The blower unit at the end of the blower branch accelerates the gas flow through negative pressure suction. When the absorption capacity of saturated water is insufficient, it efficiently mixes and dilutes the residual ammonia with air, quickly reducing the ammonia concentration to the standard requirements. At the same time, the ammonia concentration detector provides real-time feedback on the emission concentration data to ensure that the emission meets the standards.

[0018] Optionally, the water tank device is connected to an ammonia branch of a ventilation duct for introducing ammonia into the ventilation system, and an ammonia pneumatic valve for the ventilation duct is installed on the ammonia branch of the ventilation duct.

[0019] By adopting the above technical solution, the ammonia branch of the ventilation duct is connected to the water tank device, and an ammonia pneumatic valve for the ventilation duct is configured. Through the setting of the ammonia branch and the ammonia pneumatic valve for the ventilation duct, the introduction and treatment of ammonia in the ventilation system is realized, the system's processing capacity for the ventilation system is expanded, and the efficiency of multi-source ammonia collaborative treatment is improved.

[0020] Optionally, the water tank device is connected to a pipeline for discharging ammonia gas, and a pneumatic valve for discharging ammonia gas is installed on the pipeline for discharging ammonia gas.

[0021] By adopting the above technical solution, the pipeline ammonia discharge branch is connected to the water tank device, and a pipeline ammonia discharge pneumatic valve is configured. Through the setting of the pipeline ammonia discharge branch and the pipeline ammonia discharge pneumatic valve, the introduction and treatment of pipeline ammonia is realized, the system's processing capacity for pipeline ammonia is expanded, and the efficiency of multi-source ammonia collaborative treatment is improved.

[0022] Optionally, the water tank device is connected to a purging ammonia gas branch for introducing purging ammonia gas for the purging operation, and a purging ammonia gas pneumatic valve is provided on the purging ammonia gas branch.

[0023] By adopting the above technical solution, the ammonia purging branch is connected to the water tank device and equipped with a pneumatic valve for ammonia purging. Through the setting of the ammonia purging branch and the pneumatic valve for ammonia purging, the introduction and treatment of ammonia purging is realized, the system's processing capacity for ammonia purging is expanded, and the efficiency of multi-source ammonia synergistic treatment is improved.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up a shock separation pipe, recovery tank, water tank device and water regeneration device, the resource recovery and efficient treatment of ammonia gas is realized. The shock separation tank introduces high-concentration gaseous ammonia into the water tank device for water washing and absorption, while liquid ammonia is recycled through the recovery tank. The water tank device and water regeneration device work together to achieve a high water reuse rate through saturated ammonia water transportation, catalysis and regeneration water reuse closed loop circulation, which reduces water consumption and wastewater generation and reduces operating costs. At the same time, multi-source ammonia gas treatment is realized through multiple branches to meet the ammonia gas treatment needs in the ship scenario.

[0026] 2. By setting up the ammonia separation and recovery branch and the pneumatic valve, the ammonia separation and recovery branch realizes the recovery of residual gaseous ammonia, which is used to recover the trace amount of gaseous ammonia remaining in the impact separation tank. At the same time, the pneumatic valve is used to control the precise switching of the on and off of each branch.

[0027] 3. By setting up blower branches and ammonia concentration detectors, ventilation and real-time concentration monitoring of exhaust gases are achieved. The blower at the end of the blower branch accelerates gas flow through negative pressure suction. When the absorption capacity of saturated water is insufficient, it efficiently mixes and dilutes residual ammonia with air, quickly reducing the ammonia concentration to the standard requirements. At the same time, the ammonia concentration detector provides real-time feedback on the emission concentration data to ensure that emissions meet the standards. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an ammonia treatment system according to an embodiment of this application.

[0029] Figure 2 This is a structural schematic diagram illustrating the water tank device and the water regeneration device in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram illustrating the structure of the nitrogen supply branch in the embodiments of this application.

[0031] Explanation of reference numerals in the attached diagram: 1. Impact separator; 2. Recovery tank; 3. Water tank device; 4. Water regeneration device; 5. Engine drain branch; 6. Liquid ammonia separation and recovery branch; 7. Ammonia recirculation branch; 8. Ammonia separation and adsorption branch; 9. Saturated ammonia water branch; 10. Regenerated water branch; 11. Ammonia solution discharge branch; 12. Exhaust mast; 13. Ammonia separation and recovery branch; 14. Nitrogen supply branch; 141. Nitrogen supply... 142. Nitrogen supply to the first pneumatic valve; 15. Nitrogen exhaust branch; 151. Nitrogen exhaust pneumatic valve; 16. Fan unit; 161. Blower branch; 17. Ammonia concentration detector; 18. Ammonia branch in ventilation duct; 181. Ammonia pneumatic valve in ventilation duct; 19. Ammonia exhaust branch in pipeline; 191. Ammonia exhaust pneumatic valve in pipeline; 20. Ammonia purging branch; 201. Ammonia purging pneumatic valve. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses an ammonia treatment system. (Refer to...) Figure 1 The ammonia treatment system includes an impact separation tank 1, a recovery tank 2, a water tank device 3, and a water regeneration device 4. The impact separation tank 1 accelerates the separation of liquid ammonia from the gas by reducing the gas flow rate and using gravity. Specifically, the tank body is designed with a flow guiding structure and an impact separation structure. By expanding the flow channel, the gas flow rate is reduced, causing the liquid droplets carried in the gas flow to separate from the gas due to inertia. The gas flow impacts the impact separation structure and then flows downward along the structural grooves under the action of gravity. The ammonia is collected naturally by gravity. This is a common gas-liquid separation device structure in the industrial field.

[0034] Reference Figure 1 The impact separation tank 1 is connected to an engine drain branch 5, which is used to access the engine containing ammonia fluid. In this embodiment, the engine drain branch 5 can be a single branch or multiple branches. An ammonia separation and adsorption branch 8 is connected between the top of the impact separation tank 1 and the water tank device 3. The ammonia separation and adsorption branch 8 is used to introduce high-concentration gaseous ammonia into the water tank device 3.

[0035] Reference Figure 1 and Figure 2 The water tank device 3 contains water. Because ammonia has a strong affinity for water, water easily absorbs ammonia and reaches gas-liquid balance. The water tank device 3 absorbs and filters ammonia to treat ammonia in the exhaust gas. The water tank device 3 and the water regeneration device 4 are connected by a saturated ammonia water branch 9, which is used to transport saturated ammonia water.

[0036] Reference Figure 1 and Figure 2 The water regeneration device 4 contains a catalyst. The lower part of the water regeneration device 4 is connected to an ammonia solution discharge branch 11, which is used to discharge the solution after the reaction. The ammonia solution discharged through the ammonia solution discharge branch 11 can be used in the fertilizer industry. At the same time, the water regeneration device 4 is also connected to the water tank device 3 by a regenerated water branch 10, which is used to return regenerated water to the water tank device 3 to realize resource reuse. After the water in the water tank device 3 absorbs enough ammonia to reach saturation, the water regeneration device 4 is started. The saturated ammonia water in the water tank enters the water regeneration device 4. The catalyst in the water regeneration device 4 neutralizes the ammonia and generates water. The regenerated water is discharged from the device outlet and re-enters the water tank device 3 to circulate and absorb ammonia. The water in the water regeneration device 4 can be recycled.

[0037] Reference Figure 1 and Figure 2The top of the water tank device 3 is connected to an exhaust mast 12, which is connected to a blower branch 161. A blower device 16 is installed at the end of the blower branch 161, and an ammonia concentration detector 17 for monitoring emission concentration is integrated on the exhaust mast 12. Using the blower device 16, when the water in the water tank device 3 is converted into saturated ammonia water, the continuously recovered ammonia gas, when the saturated water cannot absorb it, is mixed with air through the blower device, and the ammonia concentration is rapidly diluted. When the ammonia concentration is reduced to below the standard requirements, it is discharged from the exhaust mast. This achieves ventilation and real-time concentration monitoring of the emitted gas. The blower device 16 at the end of the blower branch 161 accelerates the gas flow through negative pressure suction. When the absorption capacity of the saturated water is insufficient, it efficiently mixes and dilutes the residual ammonia gas with air, quickly reducing the ammonia concentration to the standard requirements. At the same time, the ammonia concentration detector 17 provides real-time feedback on the emission concentration data to ensure that the emission meets the standards.

[0038] Reference Figure 1 and Figure 2 The water tank device 3 is also connected in sequence to a ventilation duct ammonia branch 18, a pipeline discharge ammonia branch 19, and a purging ammonia branch 20. Ventilation duct ammonia branch 18, pipeline discharge ammonia branch 19, and purging ammonia branch 20 are respectively equipped with ventilation duct ammonia pneumatic valve 181, pipeline discharge ammonia pneumatic valve 191, and purging ammonia pneumatic valve 201; thus realizing the introduction and treatment of ammonia from the ventilation system, pipeline discharge ammonia, and purging ammonia, expanding the system's processing capacity, and improving the synergistic treatment efficiency of multi-source ammonia.

[0039] Reference Figure 1 and Figure 3 A liquid ammonia separation and recovery branch 6 is connected between the bottom of the impact separation tank 1 and the recovery tank 2. The liquid ammonia separation and recovery branch 6 is used to collect liquid ammonia into the recovery tank 2. The lower part of the recovery tank 2 is connected to an ammonia recirculation branch 7, which is used to send liquid ammonia back to the supply system.

[0040] Reference Figure 1 and Figure 3 The ammonia separation and recovery branch 13 is connected between the impact separation tank 1 and the recovery tank 2. The ammonia separation and recovery branch 13 is used to recover residual gaseous ammonia. At the same time, pneumatic valves are installed on the liquid ammonia separation and recovery branch 6, the ammonia separation and recovery branch 13, the ammonia recirculation branch 7, the saturated ammonia water branch 9, and the regenerated water branch 10. The ammonia separation and recovery branch 13 realizes the recovery of residual gaseous ammonia, and at the same time, the pneumatic valve is used to control the precise switching of the on and off of each branch.

[0041] Reference Figure 1 and Figure 3The recovery tank 2 is connected to a nitrogen supply branch 14, and a nitrogen supply branch 14 is equipped with a nitrogen supply second pneumatic valve 142. The nitrogen supply branch 14 enables the recovery tank 2 to be safely emptied when the engine drain branch 5 is switched, ensuring the safety of the system. At the same time, the nitrogen supply second pneumatic valve 142 enables the opening and closing of the nitrogen supply branch 14.

[0042] Reference Figure 1 and Figure 3 Meanwhile, nitrogen supply branch 14 is connected to nitrogen discharge branch 15, and nitrogen discharge branch 15 is equipped with nitrogen discharge pneumatic valve 151. Nitrogen supply branch 14 is also equipped with nitrogen supply first pneumatic valve 141. Nitrogen supply branch 14 and nitrogen discharge branch 15 are connected in parallel. The former is responsible for supplying high-purity nitrogen to recovery tank 2 for venting, and the latter is used to cut off the nitrogen supply path. When it is necessary to switch pipelines, nitrogen supply first pneumatic valve 141 and nitrogen supply second pneumatic valve 141 are opened simultaneously. 2. When the nitrogen discharge pneumatic valve 151 is closed, the residual ammonia in the upper gas phase zone of the recovery tank 2 is forcibly discharged through the nitrogen discharge branch 15 by a high-speed nitrogen gas flow. The first nitrogen supply pneumatic valve 141 is located at the front end of the main supply pipeline to realize the overall control of the on / off state. The second nitrogen supply pneumatic valve 142 is connected in series in the nitrogen supply branch 14. The nitrogen supply and the first pneumatic valve form a dual-valve series control structure. The discharge branch quickly cuts off the supply path through the nitrogen discharge pneumatic valve 151. The operation is convenient and risk-free.

[0043] The implementation principle of an ammonia treatment system according to an embodiment of this application is as follows: When ammonia is treated, the ammonia-containing fluid in the engine enters the impact separation tank 1 through the engine drain branch 5. Coarse gas-liquid separation is achieved through gravity settling and centrifugal swirling. High-concentration gaseous ammonia rises to the top region due to density differences, while liquid ammonia settles to the bottom. The high-concentration gaseous ammonia is introduced into the water tank device 3 through the ammonia separation and adsorption branch 8. The liquid ammonia at the bottom of the tank is transported to the lower liquid phase zone of the recovery tank 2 for centralized recovery via the liquid ammonia separation and recovery branch 6. Trace amounts of residual gaseous ammonia are introduced into the upper gas phase zone of the recovery tank 2 through the ammonia separation and recovery branch 13. The lower liquid ammonia is returned to the engine ammonia supply system for recycling through the ammonia recirculation branch 7. Pre-stored water in the water tank fully contacts the gaseous ammonia to form saturated ammonia water. This saturated ammonia water is then processed through a saturated... Ammonia water branch 9 is delivered to water regeneration device 4. The catalyst inside water regeneration device 4 neutralizes ammonia and generates water. The regenerated water returns to water tank device 3 through regenerated water branch 10. Ammonia solution is discharged through ammonia solution discharge branch 11 and can be used in the fertilizer industry. When saturated water cannot absorb it, ammonia gas is mixed with air through a blower, and the ammonia concentration is rapidly diluted. When the ammonia concentration is reduced to below the standard requirements, it is discharged from the exhaust mast. At the same time, a three-stage ammonia gas inlet branch is also configured. Ventilation duct ammonia gas branch 18 is connected to the ammonia gas in the plant ventilation system. Pipeline discharge ammonia gas branch 19 treats ammonia gas leaking from equipment pipelines. Purging ammonia gas branch 20 receives ammonia gas replaced by nitrogen purging. All of them are collected into water tank device 3 for unified water washing and catalytic treatment to achieve centralized harmless treatment of multi-source ammonia gas.

[0044] By setting up a shock separation pipe, a recovery tank 2, a water tank device 3, and a water regeneration device 4, ammonia gas resource recovery and efficient treatment are achieved. High-concentration gaseous ammonia is introduced into the water tank device 3 for water washing and absorption through the shock separation tank 1, while liquid ammonia is recycled through the recovery tank 2. The water tank device 3 and the water regeneration device 4 work together to achieve a high water reuse rate, reduce water consumption and wastewater generation through a closed-loop circulation of saturated ammonia water transportation, catalysis, and reclaimed water reuse, thereby reducing operating costs. At the same time, multi-source ammonia gas treatment is achieved through multiple branches to meet the ammonia gas treatment needs in ship scenarios.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ammonia treatment system, characterized in that: The system includes a shock separation tank, a recovery tank, a water tank assembly, and a water regeneration device. The water tank assembly contains water, and the water regeneration device contains a catalyst. The shock separation tank is connected to an engine drain branch for connecting to ammonia-containing fluid from the engine. A liquid ammonia separation and recovery branch connects the bottom of the shock separation tank to the recovery tank. The lower part of the recovery tank is connected to an ammonia recirculation branch for returning liquid ammonia to the supply system. An ammonia separation and adsorption branch connects the top of the shock separation tank to the water tank assembly. A saturated ammonia water branch connects the water tank assembly to the water regeneration device for conveying saturated ammonia water. A regenerated water branch connects the water regeneration device to the water tank assembly for returning regenerated water. The lower part of the water regeneration device is connected to an ammonia solution discharge branch for discharging the reaction solution. An exhaust mast is connected to the top of the water tank assembly, and a fan assembly is installed on the exhaust mast.

2. The ammonia treatment system according to claim 1, characterized in that: The impact separation tank and the recovery tank are also connected by an ammonia separation and recovery branch for recovering residual gaseous ammonia. The liquid ammonia separation and recovery branch, ammonia separation and recovery branch, ammonia recirculation branch, saturated ammonia water branch and regenerated water branch are respectively equipped with pneumatic valves for controlling the on and off of each branch.

3. The ammonia treatment system according to claim 1, characterized in that: The recovery tank is also connected to a nitrogen supply branch, which is equipped with a second pneumatic valve for nitrogen supply.

4. The ammonia treatment system according to claim 3, characterized in that: The nitrogen supply branch is connected to the nitrogen discharge branch, and a nitrogen discharge pneumatic valve is installed on the nitrogen discharge branch. The nitrogen supply branch is also equipped with a first nitrogen supply pneumatic valve for overall nitrogen supply control.

5. An ammonia treatment system according to claim 1, characterized in that: The exhaust mast is connected to a blower branch, the blower is located at the end of the blower branch, and an ammonia concentration detector for monitoring the emission concentration is also installed on the exhaust mast.

6. An ammonia treatment system according to claim 1, characterized in that: The water tank device is connected to an ammonia branch of a ventilation duct for introducing ammonia into the ventilation system, and an ammonia pneumatic valve for the ventilation duct is installed on the ammonia branch of the ventilation duct.

7. An ammonia treatment system according to claim 1, characterized in that: The water tank device is connected to a pipeline for discharging ammonia gas, and a pneumatic valve for discharging ammonia gas is installed on the pipeline for discharging ammonia gas.

8. An ammonia treatment system according to claim 1, characterized in that: The water tank device is connected to a purging ammonia branch for introducing purging ammonia gas, and a purging ammonia gas pneumatic valve is installed on the purging ammonia gas branch.

Images