Ammonia water transfer system and automatic control method

Abstract

The invention discloses an ammonia water transfer system and an automatic control method, and by arranging a feeding tank, a receiving tank, a transfer tank, a transfer power trolley, a control system, a feeding butt joint device, a receiving butt joint device, a feeding purging device, a receiving purging device, a cleaning device and a control system, the whole process of ammonia water transfer is achieved, and the automatic control method has the advantages that the labor intensity of workers is reduced; the transfer purpose can be achieved only when all the components are closely matched, automatic transfer of the ammonia water is achieved, the ammonia water is not leaked in the transfer process, maintenance is easy, the ammonia water transfer efficiency is high, the device space is saved, and the safety risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical industry, and in particular relates to an ammonia water transport system and an automatic control method. Background Art

[0002] At present, ammonia water is transported by pipeline, which takes up a large space in the device, is easy to be blocked, has a high possibility of leakage due to the long pipeline, has a high safety risk, and is inconvenient to maintain. With the improvement of production requirements, the pipeline transportation method has a low efficiency and can no longer meet production requirements. Summary of the invention

[0003] (1) Technical problem to be solved: How to realize an automatic ammonia water transport system and automatic control method to solve the technical problems of the existing pipeline method, such as large space occupation, inconvenient maintenance, high safety risks and low transportation efficiency.

[0004] (2) The technical solution adopted by the present invention is as follows: An ammonia water transport system includes a feed tank, a receiving tank, a transfer tank, a transfer power trolley, a control system, a feed docking device, a receiving docking device, a feed purge device, a receiving purge device, a cleaning device and a control system. The feeding tank is provided with a feeding level meter and a feeding medium outlet. A feeding outlet solenoid valve and a feeding outlet ball valve are provided at the feeding medium outlet. The feeding level meter and the feeding outlet solenoid valve are both connected to the control system. The feeding tank is connected to the feeding docking device, which includes a feeding pipe, a feeding telescopic cylinder and a feeding sealing joint. The feeding pipe is a hose or a telescopic tube. The upper interface of the feeding pipe is connected to the bottom of the feeding outlet ball valve. The piston of the feeding telescopic cylinder is connected to the feeding pipe, and the feeding sealing joint is connected to the lower interface of the feeding pipe; the feeding telescopic cylinder is connected to the control system. The receiving tank is provided with a receiving liquid level meter and a receiving medium inlet, and a receiving inlet solenoid valve and a receiving inlet ball valve are provided at the receiving medium inlet. The receiving liquid level meter and the receiving inlet solenoid valve are both connected to the control system. The material receiving tank is connected to the material receiving docking device, which includes a material receiving pipe, a material receiving telescopic cylinder and a material receiving sealing joint. The material receiving pipe is a hose or a telescopic pipe. The lower interface of the material receiving pipe is connected to the material receiving inlet ball valve. The piston of the material receiving telescopic cylinder is connected to the material receiving pipe. The material receiving sealing joint is connected to the upper interface of the material receiving pipe. The material receiving telescopic cylinder is connected to the control system. The transfer tank is provided with a transfer medium inlet, a transfer medium outlet and a transfer liquid level meter, the transfer medium inlet is connected to a transfer receiving pipe, an inlet sealing joint is provided at the upper end of the transfer receiving pipe, the transfer medium outlet is connected to a transfer discharge pipe, an outlet sealing joint is provided at the lower end of the transfer discharge pipe, an inlet solenoid valve is provided on the transfer receiving pipe, an outlet solenoid valve is provided on the transfer discharge pipe, and the inlet solenoid valve and the outlet solenoid valve are connected to a control system; the transfer tank is installed on a transfer power trolley, The feeding purge device comprises a first feeding purge pipeline and a second feeding purge pipeline, wherein the first feeding purge pipeline is connected to the feeding pipe, a feeding purge ball valve and a feeding purge front solenoid valve are arranged on the first feeding purge pipeline, and the feeding purge front solenoid valve is connected to the control system; the second feeding purge pipeline is connected to the transfer receiving pipe, and a feeding purge stop valve and a feeding purge rear solenoid valve are arranged on the second feeding purge pipeline, The material receiving and purging device comprises a first material receiving and purging pipeline and a second material receiving and purging pipeline, the first material receiving and purging pipeline is connected to the material receiving pipe, a material receiving and purging ball valve and a material receiving and purging front solenoid valve are arranged on the first material receiving and purging pipeline, the second material receiving and purging pipeline is connected to the venting port on the transfer tank, a material receiving and purging stop valve and a material receiving and purging rear solenoid valve are arranged on the second material receiving and purging pipeline, the first material receiving and purging pipeline and the second material receiving and purging pipeline are both connected to a hose; the material receiving and purging front solenoid valve and the material receiving and purging rear solenoid valve are connected to a control system, The cleaning device comprises a cleaning water supply pipe, one end of which is a transfer tank, and the other end of which is connected to a cleaning ammonia booster pump. A post-pump shut-off valve and a post-pump solenoid valve are arranged on the cleaning water supply pipe, and the post-pump solenoid valve is connected to a control system.

[0005] A further technical solution is that the cylinder bodies of the feeding telescopic cylinder and the receiving telescopic cylinder are both fixed by a bracket.

[0006] An automatic control method for an ammonia water transport system, the specific process is: When the control system detects that the ammonia water has received the instruction, the control system controls the transfer power trolley to run to the bottom of the designated feed tank. When the transfer power trolley is controlled to the designated position, the position sensor on the transfer power trolley triggers a signal, and the control system controls the transfer power trolley to stop. The control system controls the piston of the feeding telescopic cylinder of the feeding docking device to extend, and the piston of the feeding telescopic cylinder drives the feeding sealing joint at the lower end of the feeding pipe to connect with the inlet sealing joint at the upper end of the transfer connecting pipe. After the piston of the feeding telescopic cylinder is extended to the right position, it opens to complete the connection between the feeding docking device and the transfer tank. After the piston of the feeding telescopic cylinder is extended to the right position, the control system controls the feeding outlet solenoid valve and the feeding inlet solenoid valve to open, and the feeding starts. The ammonia water in the feeding tank flows into the transfer tank along the feeding pipe and the transfer connecting pipe. After the transfer level meter detects that the liquid level in the feeding tank has reached the set position, feeding to the transfer tank is completed, and the control system controls the feeding outlet solenoid valve and the inlet solenoid valve to close. The control system controls the feed purge front solenoid valve and feed purge rear solenoid valve to open and start purge. After the purge time is up, the feed purge front solenoid valve and feed purge rear solenoid valve are closed; the feed purge ball valve and feed purge stop valve are both in the open state. After the control system controls the piston of the feeding telescopic cylinder to be retracted into place, the feeding sealing joint of the feeding docking device is disconnected from the inlet sealing joint. The control system controls the transfer power trolley to run above the designated receiving tank. After the position sensor on the transfer power trolley triggers a signal, the control system controls the transfer power trolley to stop. The piston of the material receiving telescopic cylinder of the material receiving docking device brings the material receiving sealing joint at the upper end of the material receiving pipe up and completes the docking of the material receiving sealing joint of the material receiving docking device with the outlet sealing joint at the lower end of the transfer discharge pipe. The control system controls the outlet solenoid valve and the receiving inlet solenoid valve to open and start receiving materials. After the receiving tank level meter detects that the material level in the receiving tank has reached the limit, the transfer tank outlet solenoid valve and the receiving tank inlet solenoid valve are closed. The stop valve behind the pump is in the open state, the control system controls the solenoid valve behind the pump to open, and the control system controls the cleaning ammonia booster pump to run. After the cleaning time is up, the cleaning ammonia booster pump stops running, and the solenoid valve behind the pump and the cleaning ammonia booster pump are closed. The control system controls the solenoid valve before and after the receiving material purge to open, and the receiving material purge ball valve and the receiving material purge stop valve are both in the open state. After the purge time is up, the solenoid valve before and after the receiving material purge are closed. The control system controls the material receiving telescopic cylinder of the material receiving docking device to retract, disconnects the connection between the material receiving sealing joint of the material receiving docking device and the outlet sealing joint of the transfer tank, After one working cycle is finished, the feeding instruction is waited for and the power trolley is transferred to the next working cycle.

[0007] (3) Due to the adoption of the above technical solution, the beneficial effects of the present invention are: The present invention realizes the entire process of ammonia water transportation by arranging a feeding tank, a receiving tank, a transfer tank, a transfer power trolley and a control system, as well as a feeding docking device, a receiving docking device, a feeding purge device, a receiving purge device, a cleaning device and a control system. Only when the above components are closely coordinated can the purpose of transportation be achieved. In addition, the automatic transportation of ammonia water is realized, and the ammonia water does not leak during the transportation process, which is easy to maintain, has high ammonia water transportation efficiency, saves device space, and reduces safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a schematic diagram of the overall structural connection relationship of the present invention; Figure 2 It is a schematic diagram of the feeding docking device; Figure 3 Schematic diagram of the receiving docking device Figure 4 It is the operation flow chart of the present invention. DETAILED DESCRIPTION

[0009] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0010] like Figure 1-Figure 4 An ammonia water transport system includes a feed tank 1, a receiving tank 2, a transfer tank 3, a transfer power trolley 4 and a control system, a feed docking device, a receiving docking device, a feed purge device, a receiving purge device, a cleaning device and a control system. The feeding tank 1 is provided with a feeding level meter 5 and a feeding medium outlet 6. A feeding outlet solenoid valve 7 and a feeding outlet ball valve 8 are provided at the feeding medium outlet 6. The feeding level meter 5 and the feeding outlet solenoid valve 7 are both connected to the control system. The feeding tank 1 is connected to the feeding docking device, which includes a feeding pipe 9, a feeding telescopic cylinder 10 and a feeding sealing joint 11. The feeding pipe 9 is a hose or a telescopic tube. The upper interface of the feeding pipe 9 is connected to the bottom of the feeding outlet ball valve 8. The piston of the feeding telescopic cylinder 10 is connected to the feeding pipe 9, and the feeding sealing joint 11 is connected to the lower interface of the feeding pipe 9; the feeding telescopic cylinder 10 is connected to the control system. The receiving tank 2 is provided with a receiving liquid level meter 15 and a receiving medium inlet 12, and the receiving medium inlet 12 is provided with a receiving inlet solenoid valve 13 and a receiving inlet ball valve 14, and the receiving liquid level meter 15 and the receiving inlet solenoid valve 13 are both connected to the control system. The material receiving tank 2 is connected to a material receiving docking device, which includes a material receiving pipe 16, a material receiving telescopic cylinder 17 and a material receiving sealing joint 18. The material receiving pipe 16 is a hose or a telescopic pipe. The lower interface of the material receiving pipe 16 is connected to the material receiving inlet ball valve 14. The piston of the material receiving telescopic cylinder 17 is connected to the material receiving pipe 16. The material receiving sealing joint 18 is connected to the upper interface of the material receiving pipe 16. The material receiving telescopic cylinder 17 is connected to the control system. The transfer tank 3 is provided with a transfer medium inlet 19, a transfer medium outlet 20 and a transfer liquid level meter 21. The transfer medium inlet 19 is connected to a transfer receiving pipe 22. An inlet sealing joint 23 is provided at the upper end of the transfer receiving pipe 22. The transfer medium outlet 20 is connected to a transfer discharge pipe 24. An outlet sealing joint 25 is provided at the lower end of the transfer discharge pipe 24. An inlet solenoid valve 26 is provided on the transfer receiving pipe 22. An outlet solenoid valve 27 is provided on the transfer discharge pipe 24. The inlet solenoid valve 26 and the outlet solenoid valve 27 are connected to the control system. The transfer tank 3 is installed on a transfer power trolley 4, and an observation window 42 is provided on the transfer tank 3.

[0011] The feeding purge device includes a first feeding purge pipeline 28 and a second feeding purge pipeline 29. The first feeding purge pipeline 28 is connected to the feeding pipe 9. A feeding purge ball valve 30 and a feeding purge front solenoid valve 21 are arranged on the first feeding purge pipeline 28. The feeding purge front solenoid valve 21 is connected to the control system. The second feeding purge pipeline 29 is connected to the transfer receiving pipe 22. A feeding purge stop valve 33 and a feeding purge rear solenoid valve 34 are arranged on the second feeding purge pipeline 29. The material receiving and purging device comprises a first material receiving and purging pipeline 35 and a second material receiving and purging pipeline 36. The first material receiving and purging pipeline 35 is connected to the material receiving pipe 16. The first material receiving and purging pipeline 35 is provided with a material receiving and purging ball valve 37 and a material receiving and purging front solenoid valve 38. The second material receiving and purging pipeline 36 is connected to the venting port 39 on the transfer tank 3. The second material receiving and purging pipeline 36 is provided with a material receiving and purging stop valve 40 and a material receiving and purging rear solenoid valve 41. The first material receiving and purging pipeline 35 and the second material receiving and purging pipeline 36 are both connected to a hose. The material receiving and purging front solenoid valve 38 and the material receiving and purging rear solenoid valve 41 are connected to the control system. The cleaning device includes a cleaning water supply pipe 43, one end of which is connected to the transfer tank 3, and the other end of the cleaning water supply pipe 43 is connected to a cleaning ammonia booster pump 44. The cleaning water supply pipe 43 is provided with a post-pump stop valve 45 and a post-pump solenoid valve 46, and the post-pump solenoid valve 46 is connected to the control system.

[0012] The cylinder bodies of the feeding telescopic cylinder 10 and the receiving telescopic cylinder 17 are fixed by a bracket. The bracket can be fixed on the tank body of the feeding tank 1 or the receiving tank 2, or the bracket can be directly fixed on the ground. The feeding telescopic cylinder 10 and the receiving telescopic cylinder 17 can be cylinders, hydraulic cylinders or electric cylinders, preferably cylinders. The receiving sealing joint 18 is fixed on a support plate. The receiving telescopic cylinder 17 includes two, and the pistons of the two receiving telescopic cylinders 17 are connected to the support plate. The lower ends of the cylinder bodies of the two receiving telescopic cylinders 17 are fixed to the bracket 52. The feeding sealing joint 11 is also fixed on another support plate. The feeding telescopic cylinder 10 includes two, and the pistons of the two feeding telescopic cylinders 10 are connected to the support plate. The lower ends of the cylinder bodies of the two receiving telescopic cylinders 17 are fixed to the bracket 52. The feeding sealing joint 11 and the inlet sealing joint 23 adopt the method of connecting the parent and child pipe joints. For example, the outer diameter of the feeding sealing joint 11 is smaller than the inner diameter of the inlet sealing joint 23. The inlet sealing joint 23 adopts the form of a bell mouth. The feeding sealing joint 11 can be inserted into the inlet sealing joint 23. The receiving sealing joint 18 and the outlet sealing joint 25 also adopt the method of connecting the parent and child pipe joints.

[0013] The feeding outlet solenoid valve 7 and the receiving inlet solenoid valve 13 are both electric upward-expanding discharge valves.

[0014] The automatic control method of the ammonia water transport system, the specific process is: When the control system detects that the ammonia water receives the instruction, the control system controls the transfer power trolley 4 to run to the designated feeding tank 1. When the transfer power trolley 4 reaches the designated position, the position sensor on the transfer power trolley 4 triggers a signal, and the control system controls the transfer power trolley 4 to stop. The control system controls the piston of the feeding telescopic cylinder 10 of the feeding docking device to extend, and the piston of the feeding telescopic cylinder 10 drives the feeding sealing joint 11 at the lower end of the feeding pipe 9 to dock with the inlet sealing joint 23 at the upper end of the transfer connecting pipe 22. After the piston of the feeding telescopic cylinder 10 is extended to the right position, it opens to complete the connection between the feeding docking device and the transfer tank 3. After the piston of the feeding telescopic cylinder 10 is extended to the right position, the control system controls the feeding outlet solenoid valve 7 and the inlet solenoid valve 26 to open, and the feeding starts. The ammonia water in the feeding tank 1 flows into the transfer tank 3 along the feeding pipe 9 and the transfer receiving pipe 22. After the transfer level meter 21 detects that the liquid level of the feeding tank 1 has reached the set position, feeding to the transfer tank 3 is completed, and the control system controls the feeding outlet solenoid valve 7 and the inlet solenoid valve 26 to close. The control system controls the feed purge front solenoid valve 21 and the feed purge rear solenoid valve 34 to open and start purge. After the purge time is up, the feed purge front solenoid valve 21 and the feed purge rear solenoid valve 34 are closed; the feed purge ball valve 30 and the feed purge stop valve 33 are both in the open state. After the control system controls the piston of the feeding telescopic cylinder 10 to be retracted into place, the feeding sealing joint 11 of the feeding docking device is disconnected from the inlet sealing joint 23. The control system controls the transfer power trolley 4 to run above the designated material receiving tank 2. After the position sensor on the transfer power trolley 4 triggers a signal, the control system controls the transfer power trolley 4 to stop. The piston of the material receiving telescopic cylinder 17 of the material receiving docking device brings the material receiving sealing joint 18 at the upper end of the material receiving pipe 16 up and completes the docking of the material receiving sealing joint 18 of the material receiving docking device with the outlet sealing joint 25 at the lower end of the transfer discharge pipe 24. The control system controls the outlet solenoid valve 27 and the material receiving inlet solenoid valve 13 to open and start receiving the material. After the receiving material level meter 15 detects that the material level in the receiving tank 2 has reached the limit, the outlet solenoid valve 27 of the transfer tank 3 and the inlet solenoid valve 26 of the receiving tank 2 are closed. The stop valve 45 after the pump is in an open state, the control system controls the electromagnetic valve 46 after the pump to open, and the control system controls the cleaning ammonia booster pump 44 to operate. After the cleaning time is up, the cleaning ammonia booster pump 44 stops running, and the electromagnetic valve 46 after the pump and the cleaning ammonia booster pump 44 are closed. The control system controls the front solenoid valve 38 of the receiving material purge and the rear solenoid valve 41 of the receiving material purge to open, and the receiving material purge ball valve 37 and the receiving material purge stop valve 40 are both in the open state. After the purge time is up, the front solenoid valve 38 of the receiving material purge and the rear solenoid valve 41 of the receiving material purge are closed. The control system controls the material receiving telescopic cylinder 17 of the material receiving docking device to be retracted, disconnecting the material receiving sealing joint 18 of the material receiving docking device from the outlet sealing joint 25 of the transfer tank 3, After one working cycle is finished, the feeding instruction is waited for and the transfer power trolley 4 proceeds to the next working cycle.

[0015] The cleaning ammonia water booster pump 44 is connected in parallel with a branch 47, on which a branch ball valve 48 and a bypass flow limiting orifice 49 are provided, and a front-pump solenoid valve 50 and a front-pump ball valve 51 are provided on the pipeline in front of the cleaning ammonia water booster pump 44. Guardrails are provided around the transfer trolley.

[0016] The control system described in the present invention is an automatic control system based on PLC, and the feeding outlet solenoid valve 7, the receiving inlet solenoid valve 13, the feeding telescopic cylinder 10, the receiving telescopic cylinder 17, the outlet solenoid valve 27, the inlet solenoid valve 26, the feeding purge front solenoid valve 21, the feeding purge rear solenoid valve 34, the material purge front solenoid valve, and the receiving purge rear solenoid valve 41 are all connected to the output end of the control system, and the feeding level meter 5, the transfer level meter 21, and the receiving level meter 15 are all connected to the input end of the control system. The transfer power trolley 4 is an existing AGV or RGV trolley, and a position sensor is set below the feeding tank 1. The position sensor is connected to the input end of the control system. After the transfer power trolley 4 reaches the bottom of the feeding tank 1, the position sensor will be triggered. The position sensor is also set above the receiving tank 2. The transfer power trolley 4 triggers the position sensor after reaching the top of the feeding and receiving tank 2. The position sensor uses a photoelectric proximity switch, and the photoelectric proximity switch accurately detects the parking space of the transfer trolley to achieve accurate positioning of the transfer trolley. The feeding level meter 5, the transfer level meter 21 and the receiving level meter 15 are all radar level meters, which detect the corresponding liquid levels in the tanks and transmit them to the control system.

[0017] The above are only preferred embodiments of the present invention.

Claims

1. An ammonia water transport system, characterized in that: It comprises a feeding tank (1), a receiving tank (2), a transfer tank (3), a transfer power trolley (4), a feeding docking device, a receiving docking device, a feeding purge device, a receiving purge device, a cleaning device and a control system. The feeding tank (1) is provided with a feeding liquid level meter (5) and a feeding medium outlet (6), a feeding outlet solenoid valve (7) and a feeding outlet ball valve (8) are provided at the feeding medium outlet (6), and the feeding liquid level meter (5) and the feeding outlet solenoid valve (7) are both connected to a control system. The feeding tank (1) is connected to a feeding docking device, which comprises a feeding pipe (9), a feeding telescopic cylinder (10) and a feeding sealing joint (11). The feeding pipe (9) is a hose or a telescopic tube. The upper interface of the feeding pipe (9) is connected to the lower part of the feeding outlet ball valve (8). The piston of the feeding telescopic cylinder (10) is connected to the feeding pipe (9). The feeding sealing joint (11) is connected to the lower interface of the feeding pipe (9). The feeding telescopic cylinder (10) is connected to a control system. The receiving tank (2) is provided with a receiving liquid level meter (15) and a receiving medium inlet (12); a receiving medium inlet solenoid valve (13) and a receiving medium inlet ball valve (14) are provided at the receiving medium inlet (12); the receiving liquid level meter (15) and the receiving medium inlet solenoid valve (13) are both connected to a control system. The material receiving tank (2) is connected to a material receiving docking device, which comprises a material receiving pipe (16), a material receiving telescopic cylinder (17) and a material receiving sealing joint (18). The material receiving pipe (16) is a hose or a telescopic pipe. The lower interface of the material receiving pipe (16) is connected to the material receiving inlet ball valve (14). The piston of the material receiving telescopic cylinder (17) is connected to the material receiving pipe (16). The material receiving sealing joint (18) is connected to the upper interface of the material receiving pipe (16). The material receiving telescopic cylinder (17) is connected to a control system. The transfer tank (3) is provided with a transfer medium inlet (19), a transfer medium outlet (20) and a transfer liquid level meter (21); the transfer medium inlet (19) is connected to a transfer material receiving pipe (22); an inlet sealing joint (23) is provided at the upper end of the transfer material receiving pipe (22); the transfer medium outlet (20) is connected to a transfer material discharging pipe (24); an outlet sealing joint (25) is provided at the lower end of the transfer material discharging pipe (24); an inlet solenoid valve (26) is provided on the transfer material receiving pipe (22); an outlet solenoid valve (27) is provided on the transfer material discharging pipe (24); and the inlet solenoid valve (26) and the outlet solenoid valve (27) are connected to a control system; the transfer tank (3) is installed on a transfer power trolley (4); The feed purge device comprises a first feed purge pipeline (28) and a second feed purge pipeline (29), wherein the first feed purge pipeline (28) is connected to the feed pipe (9), and a feed purge ball valve (30) and a feed purge front solenoid valve (21) are arranged on the first feed purge pipeline (28), and the feed purge front solenoid valve (21) is connected to the control system; the second feed purge pipeline (29) is connected to the transfer receiving pipe (22), and a feed purge stop valve (33) and a feed purge rear solenoid valve (34) are arranged on the second feed purge pipeline (29), The material receiving and purging device comprises a first material receiving and purging pipeline (35) and a second material receiving and purging pipeline (36); the first material receiving and purging pipeline (35) is connected to the material receiving pipe (16); a material receiving and purging ball valve (37) and a material receiving and purging front solenoid valve (38) are arranged on the first material receiving and purging pipeline (35); the second material receiving and purging pipeline (36) is connected to the venting port (39) on the transfer tank (3); a material receiving and purging stop valve (40) and a material receiving and purging rear solenoid valve (41) are arranged on the second material receiving and purging pipeline (36); the first material receiving and purging pipeline (35) and the second material receiving and purging pipeline (36) are both connected to a hose; the material receiving and purging front solenoid valve (38) and the material receiving and purging rear solenoid valve (41) are connected to a control system; The cleaning device comprises a cleaning water supply pipe, one end of which is a transfer tank (3), and the other end of which is connected to a cleaning ammonia booster pump. A post-pump stop valve and a post-pump solenoid valve are provided on the cleaning water supply pipe, and the post-pump solenoid valve is connected to a control system.

2. An ammonia transport system according to claim 1, characterized in that: The cylinder bodies of the feeding telescopic cylinder (10) and the receiving telescopic cylinder (17) are both fixed by brackets.

3. The automatic control method for an ammonia water transport system according to claim 1, characterized in that: The specific process is: When the control system detects that the ammonia water has received the instruction, the control system controls the transfer power trolley (4) to move to the bottom of the designated feed tank (1). When the transfer power trolley (4) is moved to the designated position, the position sensor on the transfer power trolley (4) sends a trigger signal, and the control system controls the transfer power trolley (4) to stop. The control system controls the piston of the feeding telescopic cylinder (10) of the feeding docking device to extend, and the piston of the feeding telescopic cylinder (10) drives the feeding sealing joint (11) at the lower end of the feeding pipe (9) to dock with the inlet sealing joint (23) at the upper end of the transfer connecting pipe (22). After the piston of the feeding telescopic cylinder (10) is extended to the right position, it opens, and the connection between the feeding docking device and the transfer tank (3) is completed. After the piston of the feeding telescopic cylinder (10) is extended to the right position, the control system controls the feeding outlet solenoid valve (7) and the inlet solenoid valve (26) to open, and feeding begins. The ammonia water in the feeding tank (1) flows along the feeding pipe (9) and the transfer receiving pipe (22) into the transfer tank (3). After the transfer level meter (21) detects that the liquid level of the feeding tank (1) has reached the set position, feeding to the transfer tank (3) is completed, and the control system controls the feeding outlet solenoid valve (7) and the inlet solenoid valve (26) to close. The control system controls the feed purge front solenoid valve (21) and the feed purge rear solenoid valve (34) to open and start purge. After the purge time is up, the feed purge front solenoid valve (21) and the feed purge rear solenoid valve (34) are closed. The feed purge ball valve (30) and the feed purge stop valve (33) are both in an open state. After the control system controls the piston of the feeding telescopic cylinder (10) to be retracted into position, the feeding sealing joint (11) of the feeding docking device is disconnected from the inlet sealing joint (23). The control system controls the transfer power trolley (4) to move to the top of the designated material receiving tank (2). After the position sensor on the transfer power trolley (4) triggers a signal, the control system controls the transfer power trolley (4) to stop. The piston of the material receiving telescopic cylinder (17) of the material receiving docking device moves up with the material receiving sealing joint (18) at the upper end of the material receiving pipe (16), thereby completing the docking of the material receiving sealing joint (18) of the material receiving docking device with the outlet sealing joint (25) at the lower end of the transfer discharge pipe (24). The control system controls the outlet solenoid valve (27) and the receiving inlet solenoid valve (13) to open and start receiving the material. After the receiving material level meter (15) detects that the material level in the receiving tank (2) has reached the limit, the outlet solenoid valve (27) of the transfer tank (3) and the inlet solenoid valve (26) of the receiving tank (2) are closed. The stop valve behind the pump is in the open state, the control system controls the solenoid valve behind the pump to open, and the control system controls the cleaning ammonia booster pump to run. After the cleaning time is up, the cleaning ammonia booster pump stops running, and the solenoid valve behind the pump and the cleaning ammonia booster pump are closed. The control system controls the front solenoid valve (38) of the receiving material purge and the rear solenoid valve (41) of the receiving material purge to open, and the receiving material purge ball valve (37) and the receiving material purge stop valve (40) are both in an open state. After the purge time is up, the front solenoid valve (38) of the receiving material purge and the rear solenoid valve (41) of the receiving material purge are closed. The control system controls the material receiving telescopic cylinder (17) of the material receiving docking device to retract, disconnecting the material receiving sealing joint (18) of the material receiving docking device from the outlet sealing joint (25) of the transfer tank (3). After one working cycle is finished, the power transfer vehicle (4) waits for the feeding instruction to proceed to the next working cycle.

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