A regeneration system and method for eliminating ammonia

Abstract

The present application relates to the technical field of condensate polishing, and discloses a regenerative system for eliminating ammonia gas, which comprises a separation tower, a negative tower, a positive tower, a wastewater resin catcher and a wastewater pool; the separation tower, the negative tower and the positive tower are connected to the wastewater resin catcher through branch pipelines and a converging main pipe; the wastewater resin catcher is connected to the top of the wastewater pool through a ditch; in addition, a bypass pipeline is connected to the bottom of the wastewater pool in the waste acid water discharge pipeline of the positive tower; the bypass pipeline is in a sealed state, and a valve is arranged on the bypass pipeline. The bypass pipeline is directly connected to the wastewater pool, so that the acid solution containing ammonium ions generated by the positive tower can be discharged into the bottom of the wastewater pool through the sealed pipeline, ammonia is dissolved in a large amount of wastewater, the alkaline solution containing hydroxyl ions generated by the negative tower is discharged into the top of the wastewater pool through the converging main pipe, and hydroxyl is also dissolved in a large amount of wastewater; after ammonia and alkali are mixed with a large amount of water in the wastewater pool, the phenomenon of ammonia gas volatilization will not occur.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of condensate water fine treatment, in particular to a regeneration system and method for eliminating ammonia. BACKGROUND

[0002] Condensate water generally refers to water condensed after steam generated by a boiler is cooled by circulating cooling water after work in a steam turbine. During normal operation of a unit, due to leakage into part of salts and air impurities and the like of a condenser, shaft seal and the like, and due to the fact that corrosion products and impurities in make-up water of the thermal system cannot be completely removed and there is no blowdown, the boiler water quality will be inevitably affected, thereby leading to corrosion, scaling and salt accumulation of the steam turbine and the boiler, and thus endangering the safe and economic operation of the unit, so that condensate water fine treatment of a supercritical unit, especially a supercritical once-through unit, is extremely necessary.

[0003] The condensate water fine treatment system is composed of a mixed bed unit, a regeneration unit and an auxiliary unit; the regeneration unit is mainly composed of a separation tower, a negative tower, a positive tower, a waste water resin catcher and a waste water pool; waste water generated during regeneration of the three towers is first discharged into the waste water resin catcher, filtered by a filter screen and then discharged into the waste water pool through a ditch open channel; due to the fact that ammonia ions combined by the positive resin are displaced during the resin regeneration process and react with a large number of hydroxyl ions existing in the regeneration waste water to generate and release ammonia gas, the ammonia gas has strong irritability to the respiratory tract and eyes of human body and is toxic; and since the waste water resin catcher and the ditch are both open, the ammonia gas generated during regeneration poses a serious safety threat to the workers.

[0004] Therefore, how to provide a regeneration system for eliminating ammonia is a problem to be solved by those skilled in the art.

[0005] After acid and alkali discharged during normal regeneration of the positive tower and the negative tower are combined together into the waste water resin catcher and then discharged from the ditch, ammonia gas is volatilized due to the violent reaction between the ammonia in the acid water and the alkali water; a bypass pipe valve is newly added at the outlet of the positive tower for discharging waste water to the waste water pool directly after system modification, so that the acid water (containing ammonia and acid) generated by the positive tower is discharged into the bottom of the waste water pool through a sealed pipe and mixed with a large amount of waste water in the waste water pool, and the ammonia is dissolved in the water; the alkali water (containing ammonia) generated by the negative tower still flows to the top of the waste water pool through the original pipe, the resin catcher and the ditch; after the ammonia and the alkali are mixed with a large amount of water in the waste water pool respectively, ammonia gas is not volatilized. Therefore, when the regeneration system performs the "acid and alkali feeding" operation step, the waste water of the positive tower is discharged through the sealed bypass pipe by switching the valve; and when the regeneration system performs other regeneration operation steps, since the waste water does not react as described above, ammonia gas is not generated, so the waste water is discharged through the original open pipe ditch. SUMMARY

[0006] Therefore, the application provides a regeneration system for eliminating ammonia to solve the problem that a large amount of ammonia is released from a regeneration unit of an existing condensate polishing system, which is harmful to the health of workers.

[0007] To solve the above technical problems, the application adopts the following technical solutions.

[0008] The regeneration system for eliminating ammonia comprises a separation tower, a negative tower, a positive tower, a wastewater resin catcher and a wastewater pool.

[0009] The positive tower is connected to the bottom of the wastewater pool through a bypass pipeline, the bypass pipeline is in a sealed state, and a valve is arranged on the bypass pipeline.

[0010] Preferably, in the regeneration system for eliminating ammonia, the bypass pipeline comprises a fourth branch pipeline and an outlet pipeline.

[0011] One end of the outlet pipeline is connected to the collecting main pipeline, and the other end is connected to the bottom of the wastewater pool, and the outlet direction of the outlet pipeline is sequentially provided with a first valve and a second valve.

[0012] One end of the fourth branch pipeline is connected to the outlet end of the third branch pipeline, and the other end is connected to the outlet pipeline, and the connection position is between the first valve and the second valve.

[0013] Preferably, in the regeneration system for eliminating ammonia, the bypass pipeline comprises a fourth branch pipeline and an outlet pipeline.

[0014] One end of the outlet pipeline is connected to the collecting main pipeline, and the other end is connected to the bottom of the wastewater pool, and the outlet direction of the outlet pipeline is sequentially provided with a first valve and a second valve.

[0015] One end of the fourth branch pipeline is connected to the outlet end of the positive tower, and the other end is connected to the outlet pipeline, and the connection position is between the first valve and the second valve.

[0016] Preferably, in the regeneration system for eliminating ammonia, a wastewater resin catcher is arranged on the outlet pipeline, and the wastewater resin catcher is located on the second valve side or the fourth branch pipeline.

[0017] Preferably, in the ammonia-eliminating regeneration system, a third valve is arranged on the collecting main pipe, and the third valve is located at the rear side of the connecting position between the collecting main pipe and the water outlet pipe.

[0018] Preferably, in the ammonia-eliminating regeneration system, resin separation detection devices are arranged in the separation tower and the anion tower respectively, and the resin separation detection devices are used to detect whether the separation of the anion and cation resins is complete and whether the regeneration of the cation resin is qualified.

[0019] A control unit is connected with the resin separation detection devices, and is used to receive detection data and control the opening and closing of the first valve and the second valve according to the detection data.

[0020] Preferably, in the ammonia-eliminating regeneration system, the resin separation detection devices are photoelectric detection devices or conductivity detection devices, and are used to detect the color difference or conductivity difference between the anion and cation resins.

[0021] The application further provides an ammonia-eliminating regeneration method using the system.

[0022] (1) resin output: the invalid high-mixed resin is introduced into the separation tower;

[0023] (2) scrubbing of the separation tower: the water at the top of the separation tower is drained to the top of the resin, the compressed air scrubbing and backwashing of the separation resin are started, and after the separation resin, the anion resin is transported to the anion tower and the cation resin is transported to the cation tower;

[0024] (3) acid and alkali feeding and scrubbing: the acid and alkali feeding and scrubbing of the cation and anion resins in the cation tower and the anion tower are respectively carried out, the alkali wastewater generated by the anion tower is flowed to the wastewater resin catcher through the collecting main pipe, and then is drained to the top of the wastewater pool through the ditch, and the wastewater generated by the cation tower is drained to the bottom of the wastewater pool through the bypass pipe;

[0025] (4) mixing of the anion and cation resins: the anion resin in the anion tower is transported to the cation tower, the anion and cation resins are mixed and rinsed by air, and standby.

[0026] Preferably, in the ammonia-eliminating regeneration method, the wastewater generated by the separation tower in steps (1)-(4) is sequentially drained to the top of the wastewater pool through the first branch pipe, the collecting main pipe, the wastewater resin catcher and the ditch;

[0027] The wastewater generated by the anion tower in steps (1)-(4) is sequentially drained to the top of the wastewater pool through the second branch pipe, the collecting main pipe, the wastewater resin catcher and the ditch;

[0028] The wastewater generated by the cation tower in steps (1), (2) and (4) is sequentially drained to the top of the wastewater pool through the third branch pipe, the collecting main pipe, the wastewater resin catcher and the ditch;

[0029] Further, the third valve on the confluence header in steps (1)-(4) is in an open state;

[0030] The second valve on the water outlet pipeline in steps (1), (2), and (4) is in a closed state, and the first valve is in an open state.

[0031] The first valve on the water outlet pipeline in step (3) is in a closed state, and the second valve is in an open state.

[0032] Preferably, in the above ammonia-eliminating regeneration method, when the detection data of the resin separation detection device exceeds a preset difference, the control unit controls the first valve to be closed and the second valve to be opened.

[0033] When the detection data of the resin separation detection device reaches a preset value, the control unit controls the first valve to be opened and the second valve to be closed.

[0034] The embodiment of the present application provides an ammonia-eliminating regeneration system and method, which has the following beneficial effects compared with the prior art:

[0035] The acid solution containing ammonium ions generated by the positive tower is discharged into the bottom of the wastewater pool through the sealed pipeline, so that the ammonia is dissolved in a large amount of wastewater, and the alkaline solution containing hydroxyl ions generated by the negative tower is discharged into the top of the wastewater pool through the confluence header, so that the hydroxyl ions are also dissolved in a large amount of wastewater, and after the ammonia and the alkaline solution are mixed with a large amount of water in the wastewater pool, the phenomenon of ammonia gas volatilization does not occur.

[0036] In addition, the resin separation detection device is arranged, so that whether the negative and positive resins are completely separated and whether the positive resin is regenerated qualified can be detected, and the control unit controls the opening and closing of the valve in the bypass pipeline, so that the wastewater of the positive tower is discharged through the bypass pipeline, and automatic control is realized, which is convenient and flexible to use. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0038] Figure 1 The structure diagram of the ammonia-eliminating regeneration system of the embodiment of the present application.

[0039] In the drawings:

[0040] 100 is the separation tower, 200 is the anion tower, 300 is the cation tower, 400 is the wastewater resin capture device, 500 is the wastewater pool, 610 is the first branch pipeline, 620 is the second branch pipeline, 630 is the third branch pipeline, 640 is the fourth branch pipeline, 650 is the main conduit, 660 is the effluent pipeline, 670 is the trench, 710 is the first valve, 720 is the second valve, and 730 is the third valve. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figure 1 As shown, this embodiment of the invention provides a regeneration system for eliminating ammonia, including a separation tower 100, a negative tower 200, a positive tower 300, a wastewater resin trap 400, and a wastewater pool 500. The separation tower 100 is connected to the wastewater resin trap 400 in sequence through a first branch pipe 610 and a main pipe 650. The negative tower 200 is connected to the wastewater resin trap 400 in sequence through a second branch pipe 620 and a main pipe 650. The positive tower 300 is connected to the wastewater resin trap 400 in sequence through a third branch pipe 630 and a main pipe 650. The wastewater resin trap 400 is connected to the top of the wastewater pool 500 through a trench 670.

[0043] Understandably, during the operation of the condensate polishing and regeneration unit, the wastewater generated by the separation tower 100, the anion tower 200, and the cation tower 300 is discharged through the branch pipes at the wastewater outlet. Then, the three branch pipes converge into the main pipe 650, so that the wastewater flows into the wastewater resin capture device 400 through the branch pipes and the main pipe 650 to intercept the discharged resin, and then continues to be discharged into the wastewater pool 500 through the plant area ditch 670.

[0044] In some embodiments of the present invention, the solar tower 300 is also connected to the wastewater tank 500 via a bypass pipe. The bypass pipe is sealed and is equipped with a valve.

[0045] By setting up a bypass pipe directly connected to the wastewater tank 500, during the acid-base replacement process, the acid solution containing ammonium ions generated by the cation tower 300 can be discharged into the bottom of the wastewater tank 500 through a sealed pipe, allowing ammonia to dissolve in a large amount of wastewater. At the same time, the alkaline solution containing hydroxide ions generated by the anion tower 200 is discharged into the top of the wastewater tank 500 through the manifold 650, where hydroxide ions also dissolve in a large amount of wastewater. After the ammonia and alkali are mixed with a large amount of water in the wastewater tank 500, no ammonia volatilization will occur.

[0046] In some embodiments of the present application, the bypass pipeline comprises a fourth branch pipeline 640 and a water outlet pipeline 660; one end of the water outlet pipeline 660 is communicated with the collecting main pipe 650, and the other end is communicated to the bottom of the wastewater pool 500; the water outlet direction of the water outlet pipeline 660 is sequentially provided with a first valve 710 and a second valve 720; one end of the fourth branch pipeline 640 is communicated with the outlet end of the third branch pipeline 630, and the other end is communicated to the water outlet pipe, and the communication position is between the first valve 710 and the second valve 720. The communication and interruption between the bypass pipeline and the collecting main pipe 650 are realized by the valve, and the use control is convenient.

[0047] In some embodiments of the present application, the bypass pipeline comprises a fourth branch pipeline 640 and a water outlet pipeline 660; one end of the water outlet pipeline 660 is communicated with the collecting main pipe 650, and the other end is communicated to the bottom of the wastewater pool 500; the water outlet direction of the water outlet pipeline 660 is sequentially provided with a first valve 710 and a second valve 720; one end of the fourth branch pipeline 640 is communicated with the outlet end of the third branch pipeline 630, and the other end is communicated to the water outlet pipe, and the communication position is between the first valve 710 and the second valve 720. The communication and interruption between the bypass pipeline and the collecting main pipe 650 are realized by the valve, and the use control is convenient.

[0048] Specifically, the fourth branch pipeline 640 can be directly communicated with the wastewater outlet of the cation tower 300, or communicated with the third branch pipeline 630, and the communication or interruption with the water outlet pipeline 660 and the collecting main pipe 650 is realized by the valve. It can be understood that the communication mode of the bypass pipeline is not limited to the above two modes, and the main purpose is to: in the specific steps such as acid-base displacement, the wastewater generated by the cation tower 300 is led out to the wastewater pool 500 through a separate pipeline, so as to avoid the mixing of the ammonium ion of the cation tower 300 and the hydroxyl ion of the anion tower 200 to produce ammonia gas.

[0049] In some embodiments of the present application, a wastewater resin catcher is arranged on the water outlet pipeline 660, and the wastewater resin catcher is located on the rear side of the second valve 720 or the fourth branch pipeline 640, which can intercept the resin running out of the cation tower 300 due to improper flow control, so as to prevent the resin from being discharged into the wastewater pool and the resin from being lost, and the intercepted resin can be added to the cation tower 300 through a resin adding hopper.

[0050] In some embodiments of the present application, a third valve 730 is arranged on the collecting main pipe 650, and the third valve 730 is located on the rear side of the communication position between the collecting main pipe 650 and the water outlet pipeline 660, which can control the start and stop of the third valve 730 according to the actual operation condition, so as to control the degree of wastewater discharge in the regeneration process.

[0051] In some embodiments of the present application, resin separation detection devices are further included, which are respectively arranged in the separation tower 100 and the positive tower 300, for detecting whether the negative and positive resins are completely separated and whether the positive resin is regenerated qualified; preferably, the resin separation detection devices can be photoelectric detection devices or conductivity detection devices, for detecting the color difference or conductivity difference between the negative and positive resins.

[0052] Further, a control unit is further included, which is connected with the resin separation detection devices, for receiving detection data and controlling the opening and closing of the first valve 710 and the second valve 720 according to the detection data.

[0053] It can be understood that the separation of the negative and positive resins is controlled by the resin separation detection devices, and the principle is to detect the interface between the negative and positive resins by using the photoelectric detection devices or the conductivity detection devices according to the color difference or conductivity difference between the negative and positive resins, so as to completely separate the negative and positive resins and thus ensure the regeneration effect.

[0054] It should be noted that the first valve 710, the second valve 720 and the third valve 730 can be manual valves or electromagnetic valves, and preferably are electromagnetic valves, which can be directly controlled by the control unit, so as to realize automatic control of the regeneration process and save manpower.

[0055] The present application further provides a regeneration method for eliminating ammonia gas by using the above system, which comprises the following steps:

[0056] Step S100. Resin output: the invalid high-mixed resin is introduced into the separation tower 100.

[0057] Step S200. Scrubbing the separation tower 100: the separation tower 100 is top-press drained to the top of the resin, and compressed air scrubbing and backwashing are started to separate the resin, and after the resin is separated, the negative resin is transported to the negative tower 200 and the positive resin is transported to the positive tower 300.

[0058] Specifically, the separation tower 100 is top-press drained to the top of the resin by 15-25 cm; the compressed air scrubbing is started for 25-35 min to eliminate the static electricity of the resin and loosen the impurities on the surface of the resin, and then the resin is backwashed at a flow rate of 80, 50 and 20 t / h respectively to remove the impurities;

[0059] In addition, the interface between the cation resin and the anion resin is detected by a photoelectric detection device or a conductivity detection device, and the cation resin and the anion resin are separated completely by using the color difference or the conductivity difference between the cation resin and the anion resin. After the resin is separated, the cation resin is transported to the cation tower 200, and the anion resin is transported to the middle part of the second peephole of the anion tower 300. Specifically, when the cation resin is transported to the cation tower 200, water is introduced into the upper part of the separation tower 100, the separated cation resin is pressed into the cation tower 200, water is introduced into the top and the bottom of the separation tower 100, and the water is mainly introduced into the top and a small amount of water is introduced into the bottom. When the height of the resin in the separation tower 100 reaches the cation resin outlet of the separation tower 100, the transportation of the cation resin is completed, and the cation resin is transported to the cation tower 200. A small amount of cation resin is left in the separation tower 100, so as to reduce the amount of the anion resin mixed into the cation tower 200.

[0060] Step S300. Acid and alkali are introduced into the resin of the anion tower 200 and the cation tower 300, and then the resin is scrubbed. The waste water generated by the cation tower 300 is discharged to the bottom of the waste water pool 500 through the bypass pipeline.

[0061] Specifically, the water pump is started, and the outlet door of the acid and alkali metering box is opened. The acid and alkali are introduced into the resin of the anion tower 200 and the cation tower 300 through the acid and alkali injectors. The concentration of the acid is 4-5%, the concentration of the alkali is 3-4%, the flow rate is uniformly controlled at 8-12 t / h, and the acid and the alkali are introduced for 1 hour. The resin of the anion tower 200 and the cation tower 300 is scrubbed for 3 times, and the resin is washed for 1 time. The resin is washed for 1 time, and the DD value is less than 5 μs / cm.

[0062] Step S400. The resin of the anion tower 200 is transported to the cation tower 300, the cation resin and the anion resin are mixed by air, and the resin is rinsed, so as to be ready for use.

[0063] Specifically, the resin of the anion tower 200 is transported to the cation tower 300, the cation tower 300 is watered to the position 200 mm above the resin surface, the cation tower 300 is mixed by compressed air, the cation tower 300 is watered, the cation tower 300 is rinsed until the DD value is less than 0.15 μs / cm, and the cation tower 300 is ready for use.

[0064] In some embodiments of the present application, the waste water generated by the separation tower 100 in steps (1)-(4) is discharged to the top of the waste water pool 500 through the first branch pipeline 610, the flow collecting main pipe 650, the waste water resin catcher 400 and the ditch 670 in sequence.

[0065] The waste water generated by the anion tower 200 in steps (1)-(4) is discharged to the top of the waste water pool 500 through the second branch pipeline 620, the flow collecting main pipe 650, the waste water resin catcher 400 and the ditch 670 in sequence.

[0066] The waste water generated by the cation tower 300 in steps (1), (2) and (4) is discharged to the top of the waste water pool 500 through the third branch pipeline 630, the flow collecting main pipe 650, the waste water resin catcher 400 and the ditch 670 in sequence.

[0067] Further, the third valve 730 on the confluence header 650 in steps (1)-(4) is in an open state;

[0068] The second valve 720 on the water outlet pipeline 660 in steps (1), (2), (4) is in a closed state, and the first valve 710 is in an open state;

[0069] The first valve 710 on the water outlet pipeline 660 in step (3) is in a closed state, and the second valve 720 is in an open state.

[0070] In some embodiments of the present application, when the detection data of the resin separation detection device exceeds the preset difference, the control unit controls the first valve 710 to be closed and the second valve 720 to be opened; that is, when the photoelectric detection device or the conductivity detection device detects that the color difference or the conductivity difference between the anion and cation resin interfaces is large, it indicates that the anion and cation resins are completely separated, and the anion resin is transported to the anion tower 200 and the cation resin is transported to the cation tower 300 after resin separation. At this time, the subsequent acid-base replacement operation is performed, that is, the wastewater of the cation tower 300 is discharged to the bottom of the wastewater tank 500 through the bypass pipeline, so that the ammonium ions are mixed with a large amount of wastewater at the bottom of the wastewater tank 500.

[0071] When the detection data of the resin separation detection device reaches the preset value, the control unit controls the first valve 710 to be opened and the second valve 720 to be closed; that is, when the photoelectric detection device or the conductivity detection device detects that the conductivity of the cation tower 300 is lower than the preset value, it indicates that the acid-base replacement process is completed, and the cation tower 300 will not discharge ammonium ions. At this time, the second valve 720 is closed, so that the wastewater discharged from the cation tower 300 is discharged to the top of the wastewater tank 500 through the confluence pipeline and then through the wastewater resin trap 400 and the ditch 670.

[0072] The present application can realize that the acid solution containing ammonium ions generated by the cation tower is discharged into the bottom of the wastewater tank through the sealed pipeline, so that ammonia is dissolved in a large amount of wastewater, and the alkaline solution containing hydroxyl ions generated by the anion tower is discharged into the top of the wastewater tank through the confluence header, so that the hydroxyl ions are also dissolved in a large amount of wastewater. After ammonia and alkali are mixed with a large amount of water in the wastewater tank, the phenomenon of ammonia gas volatilization will not occur.

[0073] In addition, the present application can detect whether the anion and cation resins are completely separated and whether the cation resin is regenerated qualified by setting the resin separation detection device, and the control unit controls the opening and closing of the valve in the bypass pipeline, so that the wastewater of the cation tower is discharged through the bypass pipeline, realizing automatic control and being convenient and flexible to use.

[0074] Various embodiments are described herein with reference to the following items, which are presented by way of example and are not intended to be limiting of the disclosure. 1. A method for wireless communication, comprising: receiving a first signal from a first wireless communication device; receiving a second signal from a second wireless communication device; and determining a location of the first wireless communication device based on the first signal and the second signal. 2. The method of item 1, further comprising: determining a location of the second wireless communication device based on the first signal and the second signal. 3. The method of item 1, wherein the first signal and the second signal are received at a same time. 4. The method of item 1, wherein the first signal and the second signal are received at different times. 5. The method of item 1, wherein the first signal and the second signal are received at different frequencies. 6. The method of item 1, wherein the first signal and the second signal are received at different times and different frequencies. 7. The method of item 1, wherein the first signal and the second signal are received at a same frequency. 8. The method of item 1, wherein the first signal and the second signal are received at a same time and a same frequency. 9. The method of item 1, wherein the first signal and the second signal are received at different times and a same frequency. 10. The method of item 1, wherein the first signal and the second signal are received at different times and different frequencies. 11. The method of item 1, wherein the first signal and the second signal are received at different times and a same frequency. 12. The method of item 1, wherein the first signal and the second signal are received at a same time and different frequencies. 13. The method of item 1, wherein the first signal and the second signal are received at a same time and a same frequency. 14. The method

Claims

1. A method for regenerating ammonia gas, characterized in that, A regeneration system for eliminating ammonia gas includes the following steps: (1) Resin output: The failed high-mixed resin is introduced into the separation tower; (2) Scrubbing the separation tower: The top pressure of the separation tower drains water to the top of the resin, and the compressed air is started to scrub and backwash the resin. After the resin is separated, the anion resin is sent to the anion tower and the cation resin is sent to the cation tower. (3) Acid and alkali inlet and scrubbing: acid and alkali are introduced into the resin of the cation tower and anion tower respectively for replacement and scrubbing. The alkaline wastewater generated by the anion tower flows to the wastewater resin capture device through the main pipe and then is discharged to the top of the wastewater pool through the ditch. The acidic wastewater generated by the cation tower is discharged to the bottom of the wastewater pool through the bypass pipe. (4) Mixing of cation and cation resins: The resin from the anion tower is sent to the cation tower, where the cation and cation resins are mixed with air and rinsed for later use; When the detection data of the resin separation detection device exceeds the preset difference, the control unit controls the first valve to close and the second valve to open. When the detection data of the resin separation detection device reaches the preset value, the control unit controls the first valve to open and the second valve to close. A regeneration system for eliminating ammonia includes a separation tower, an anion tower, an cation tower, a wastewater resin trap, and a wastewater pool. The separation tower is connected to the wastewater resin trap via a first branch pipe and a main manifold. The anion tower is connected to the wastewater resin trap via a second branch pipe and the main manifold. The cation tower is connected to the wastewater resin trap via a third branch pipe and the main manifold. The wastewater resin trap is connected to the top of the wastewater pool via a trench. The solar tower is connected to the bottom of the wastewater tank via a bypass pipe. The bypass pipe is sealed and equipped with a valve. The bypass pipeline includes a fourth branch pipeline and an outlet pipeline; One end of the outlet pipe is connected to the main conduit, and the other end is connected to the bottom of the wastewater pool. The outlet pipe is equipped with a first valve and a second valve in sequence in the direction of water discharge. One end of the fourth branch pipe is connected to the outlet end of the third branch pipe, and the other end is connected to the water outlet pipe, with the connection point located between the first valve and the second valve; It also includes a resin separation and detection device, which is respectively installed in the separation tower and the cation tower, and is used to detect whether the cation and anion resins are completely separated and whether the cation resin is regenerated to a qualified standard. The control unit is connected to the resin separation detection device and is used to receive detection data and control the opening and closing of the first valve and the second valve according to the detection data. A bypass pipe is installed that is directly connected to the wastewater tank. The acid solution containing ammonium ions produced by the anolyte is discharged into the bottom of the wastewater tank through a sealed pipe, so that ammonia dissolves in a large amount of wastewater. At the same time, the alkaline solution containing hydroxide ions produced by the anion tower is discharged into the top of the wastewater tank through a manifold. Hydroxide ions also dissolve in a large amount of wastewater. After the ammonia and alkali are mixed with a large amount of water in the wastewater tank, no ammonia gas volatilization will occur.

2. The regeneration method for eliminating ammonia according to claim 1, wherein the resin separation and detection device is a photoelectric detection device or a conductivity detection device, used to detect the color difference or conductivity difference between the anion and cation resins.

3. The regeneration method for eliminating ammonia gas according to claim 1, characterized in that, The outlet pipe is equipped with a wastewater resin trap, which is located behind the second valve or on the fourth branch pipe.

4. The regeneration method for eliminating ammonia gas according to claim 1, characterized in that, A third valve is installed on the main manifold, and the third valve is located on the rear side of the connection between the main manifold and the outlet pipe.

5. The regeneration method for eliminating ammonia gas according to claim 1, characterized in that, The wastewater generated by the separation tower in steps (1)-(4) is discharged sequentially through the first branch pipeline, the main confluence pipe, the wastewater resin capture device, and the ditch to the top of the wastewater pool; The wastewater generated by the anion tower in steps (1)-(4) is discharged sequentially through the second branch pipeline, the main confluence pipe, the wastewater resin capture device, and the ditch to the top of the wastewater pool; The wastewater generated by the anode in steps (1), (2), and (4) is discharged sequentially through the third branch pipeline, the main confluence pipe, the wastewater resin capture device, and the ditch to the top of the wastewater pool; And / or the third valve on the manifold in steps (1)-(4) is in the normally open state; In steps (1), (2), and (4), the second valve on the water outlet pipe is in the closed state, and the first valve is in the open state; In step (3), the first valve on the water outlet pipe is in the closed state, and the second valve is in the open state.

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