An ammonia supply system based on intelligent operation and maintenance

Abstract

The present invention belongs to the technical field of ammonia supply equipment, specifically an ammonia supply system based on intelligent operation and maintenance, including a first support shell, a second support shell embedded on the sealing top cover of the first support shell, a first fixing sleeve fixedly connected to the middle of the outer side of the second support shell, a second fixing sleeve fixedly connected to the outer side of the first support shell, a fixing plate fixedly connected to the inside of the second support shell, a sliding rod slidably connected to the side of the second support shell close to the base, a first piston plate fixedly connected to one end of the sliding rod, and a first elastic member fixedly connected between the first piston plate and the second support shell. The present invention uses the elastic force of the first elastic member to buffer the impact force of the pressure fluctuation of liquid ammonia on the second support shell; by changing the heat exchange path of the liquid ammonia between the first piston plate and the fixing plate, it can prevent the liquid ammonia from being unable to complete vaporization in a short time due to the low temperature of the heat medium.

Description

Technical Field

[0001] The present invention belongs to the technical field of ammonia supply equipment, and specifically relates to an ammonia supply system based on intelligent operation and maintenance. Background Art

[0002] In recent years, ammonia has been considered as a potential marine fuel. Ammonia is rich in hydrogen and does not contain carbon. As a fuel for marine engine power systems, the main components of the products after complete combustion are water and nitrogen. Since ammonia does not contain sulfur atoms, emissions do not need to consider the impact of SO2, thereby reducing greenhouse gas emissions from maritime transport.

[0003] In the ammonia supply system, liquid ammonia is vaporized by an ammonia vaporizer heater and heated to a temperature allowed for use by the engine. The vaporizer heater generally adopts a container-type heat exchanger. Liquid ammonia exchanges heat with the heat medium in the container through a spiral coil, thereby increasing the temperature of the liquid ammonia to vaporize it. However, the existing vaporizer heater generally adds a pressure buffer tank to buffer the pressure fluctuation during operation, so that the entire vaporizer heater occupies a relatively large space. In addition, when pressure fluctuations occur in the liquid ammonia delivery system, the flow rate of the liquid ammonia will change, and the temperature of the heat medium in the vaporizer heater cannot be effectively increased in a short time, resulting in a slow vaporization efficiency of the liquid ammonia and accumulation in the vaporizer heater. Summary of the invention

[0004] The present invention provides an ammonia supply system based on intelligent operation and maintenance to solve the defects pointed out in the above background technology.

[0005] The technical solution of the present invention is: an ammonia supply system based on intelligent operation and maintenance, comprising a base, one side of the base is fixedly connected to an intelligent control box, the other side of the base is fixedly connected to a first support shell, a second support shell is embedded on a sealed top cover of the first support shell, both the first support shell and the second support shell are filled with heat medium, an exhaust pipe is connected to the top cover of the second support shell, a first fixed sleeve with circumferentially evenly spaced through holes on the upper side is fixedly connected to the middle of the outer side of the second support shell, the second support shell cooperates with the first fixed sleeve to form an annular cavity 1, a spiral liquid inlet pipe is connected between the second support shell and the first support shell, and the first support shell A second fixing sleeve is fixedly connected to the outer side of the second supporting shell, and the second fixing sleeve cooperates with the first supporting shell to form a closed annular cavity II, a fixing plate with a through hole in the middle is fixedly connected to the inside of the second supporting shell, a one-way valve is installed at the through hole of the fixing plate, a sliding rod is slidably connected to the lower side of the second supporting shell, and a first piston plate that is sealed and slidably matched with the second supporting shell is fixedly connected to the upper end of the sliding rod, a first elastic member is fixedly connected between the first piston plate and the second supporting shell, a liquid guide tube with an electromagnetic valve installed is connected between the second supporting shell and the exhaust pipe, and the liquid guide tube passes through the first supporting shell and the second fixing sleeve and is located in the annular cavity II.

[0006] Preferably, the elastic force of the first elastic member is greater than the pressure of the ammonia gas in the second supporting shell, thereby ensuring normal vaporization of the liquid ammonia.

[0007] Preferably, the first supporting shell and the second fixing sleeve are both made of heat-insulating materials, and the second supporting shell, the first fixing sleeve and the liquid guiding tube are all made of metal heat-conducting materials, so as to increase the heat exchange efficiency between liquid ammonia and heat medium.

[0008] Preferably, a heat medium displacement mechanism is further included, the heat medium displacement mechanism is arranged in the annular cavity 2, the heat medium displacement mechanism includes a first connecting pipe, the first connecting pipe is connected between the first fixing sleeve and the first supporting shell, a one-way valve is installed in the first connecting pipe, a second piston plate is sealed and slidably connected between the first supporting shell and the second fixing sleeve, the liquid guide pipe passes through the second piston plate, the liquid guide pipe is sealed and slidably matched with the second piston plate, the second piston plate is provided with a through hole, a one-way valve is installed at the through hole of the second piston plate, a second connecting pipe is embedded on the first supporting shell, a one-way valve is installed on the second connecting pipe, a symmetrical first electric push rod is fixedly connected to the second fixing sleeve, the first electric push rod is electrically connected to the intelligent control box, the second piston plate is fixedly connected to a sliding rod that passes through the second fixing sleeve and is symmetrically distributed, the telescopic end of the first electric push rod is fixedly connected to the adjacent sliding rod through the mounting plate, the sealing top cover of the second supporting shell, the first supporting shell and the second fixing sleeve are all provided with temperature and pressure sensors, the three temperature and pressure sensors are all electrically connected to the intelligent control box, and an insulation component is arranged on the outer side of the first fixing sleeve.

[0009] Preferably, the thermal insulation assembly includes a first rotating sleeve, the first rotating sleeve is rotatably connected to the outer side of the first fixed sleeve, the first fixed sleeve is fixedly connected to the third fixed sleeve through a mounting block, the third fixed sleeve is fitted with the inner wall of the first rotating sleeve, the first rotating sleeve and the third fixed sleeve are both provided with square through holes with circumferentially equal spacing, the first fixed sleeve is fixedly connected to an arc-shaped telescopic rod through a mounting block, the telescopic end of the arc-shaped telescopic rod is fixedly connected to the first rotating sleeve through a mounting plate, and the second fixed sleeve is provided with a driving component.

[0010] Preferably, a gap is provided between the third fixing sleeve and the first fixing sleeve to facilitate the flow of heat medium in the gap between the third fixing sleeve and the first fixing sleeve.

[0011] Preferably, the driving component includes a fixed shell, which is fixedly connected to the second fixed sleeve through a mounting plate, an oil guide pipe is connected between the fixed shell and the arc-shaped telescopic rod, and the oil guide pipe runs through the first supporting shell and the second fixed sleeve, a second electric push rod is fixedly connected to the mounting plate of the fixed shell, the second electric push rod is electrically connected to the intelligent control box, a third piston plate is fixedly connected to the telescopic end of the second electric push rod, the third piston plate is sealed and slidably matched with the fixed shell, and hydraulic oil is injected between the fixed shell and the third piston plate.

[0012] Preferably, the first rotating sleeve and the third fixed sleeve are both made of heat-insulating material to reduce heat exchange between the heat medium in the second supporting shell and the first fixed sleeve and the heat medium in the first supporting shell.

[0013] Preferably, it also includes a stirring mechanism, which is arranged at the bottom of the first supporting shell, and the stirring mechanism includes a second rotating sleeve, which is rotatably connected to the bottom of the first supporting shell, and the second rotating sleeve is fixedly connected with stirring blades with circumferential equal spacing through an annular mounting plate, and the upper end of the stirring blade is lower than the lower side of the first fixed sleeve, and a first motor is fixedly connected to the bottom of the first supporting shell, and the first motor is electrically connected to the intelligent control box, and the first motor and the second rotating sleeve are driven by a pulley and a belt.

[0014] Preferably, it also includes a limiting mechanism, which is arranged between the sliding rod and the second rotating sleeve, and the limiting mechanism includes a rotating rod, which is rotatably connected to the middle part of the second rotating sleeve, and the rotating rod is sealed and matched with the second rotating sleeve. The bottom of the first support shell is fixedly connected to a second motor, the second motor is electrically connected to the intelligent control box, the output shaft of the second motor is fixedly connected to the rotating rod, the top of the rotating rod is fixedly connected to a limiting block, the limiting block is provided with a centrally symmetrical limiting groove, the lower part of the sliding rod is fixedly connected to a fixed disk, the bottom end of the sliding rod is rotatably connected to the rotating disk, a second elastic member is fixedly connected between the rotating disk and the fixed disk, and a centrally symmetrical limiting hook is provided on the side of the rotating disk close to the limiting block, and the limiting hook is limitedly matched with the adjacent limiting groove on the limiting block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention impacts the first piston plate through the pressure fluctuation of liquid ammonia, and cushions the impact force of the pressure fluctuation of liquid ammonia on the second support shell through the elastic force of the first elastic member, thereby extending the service life of the present invention.

[0017] 2. The present invention changes the heat exchange path of the liquid ammonia between the first piston plate and the fixed plate, thereby preventing the liquid ammonia in the second supporting shell from being unable to be vaporized in a short time due to the low temperature of the heat medium, thereby causing the liquid ammonia to accumulate in the second supporting shell.

[0018] 3. The present invention seals the rotating sleeve and the fixed sleeve with each other, thereby reducing the heat exchange between the heat medium flowing between the second supporting shell and the first fixed sleeve and the heat medium in the first supporting shell, so that most of the heat in the heat medium completes the heat exchange with the liquid ammonia in the second supporting shell, thereby improving the vaporization efficiency of the liquid ammonia in the second supporting shell.

[0019] 4. The present invention stirs the heat medium in the first supporting shell by means of a stirring blade, so that the heat medium in the first supporting shell is in a flowing state. The flowing heat medium can not only be in uniform contact with the second supporting shell, but also make the heat medium between the rotating sleeve and the first fixed sleeve in a flowing state, so that the temperature of the heat medium between the second supporting shell and the first fixed sleeve is consistent with that of the heat medium in the first supporting shell.

[0020] 5. The present invention limits the two limit hooks by a limit block, thereby extending the compression time of the first elastic member and the retention time of the liquid ammonia in the first piston plate and the fixed plate, thereby ensuring the vaporization effect of the liquid ammonia and ensuring the temperature recovery of the internal heat medium of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the first supporting shell, the second fixing sleeve and other parts of the present invention;

[0023] Figure 3 It is a side view stereoscopic structural diagram of the first electric push rod and the fixing housing and other parts of the present invention;

[0024] Figure 4 It is a schematic diagram of a sectional three-dimensional structure of the first supporting shell and the second supporting shell and other parts of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the second supporting shell and the first fixing sleeve and other parts of the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the fixing plate and the first piston plate and other parts of the present invention;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the first rotating sleeve and the arc-shaped telescopic rod and other parts of the present invention;

[0028] Figure 8 It is an exploded view of the first rotating sleeve and the third fixed sleeve of the present invention;

[0029] Fig. 9 It is a side view stereoscopic structural schematic diagram of the arc-shaped telescopic rod and the first rotating sleeve and other parts of the present invention;

[0030] Fig.10 It is a three-dimensional structural schematic diagram of parts such as a stirring blade and a limit block of the present invention;

[0031] Fig.11 It is a three-dimensional structural schematic diagram of parts such as the limit block and the limit hook of the present invention.

[0032] In the figure: 1. base; 2. intelligent control box; 3. first supporting shell; 4. second supporting shell; 5. exhaust pipe; 6. first fixed sleeve; 7. spiral liquid inlet pipe; 8. second fixed sleeve; 9. fixed plate; 10. sliding rod; 11. first piston plate; 12. first elastic member; 13. liquid guide tube; 14. first connecting pipe; 15. second piston plate; 16. second connecting pipe; 17. first electric push rod; 18. first rotating sleeve; 19. third fixed sleeve; 20. arc-shaped telescopic rod; 21. fixed shell; 22. second electric push rod; 23. third piston plate; 24. second rotating sleeve; 25. stirring blade; 26. first motor; 27. rotating rod; 28. second motor; 29. ​​limit block; 30. fixed disk; 31. rotating disk; 32. second elastic member; 33. limit hook. DETAILED DESCRIPTION

[0033] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The connection mentioned in the present invention includes direct and indirect connection unless otherwise specified.

[0034] It has been found through research that the vaporization heater needs to ensure that the pressure of liquid ammonia is in a stable state during use, and that the temperature of the heat medium matches the flow rate of liquid ammonia. When the pressure of liquid ammonia fluctuates, the flow rate of liquid ammonia will change, thereby destroying the balance between the temperature of the heat medium and the flow rate of liquid ammonia. The pressure fluctuation of liquid ammonia will impact the vaporization heater. Since it takes a certain amount of time for the heater in the vaporization heater to heat the heat medium, some liquid ammonia will accumulate in the vaporization heater. The following implementation is now adopted to overcome the above-mentioned problems.

[0035] Embodiment 1: An ammonia supply system based on intelligent operation and maintenance, such as Figure 1-Figure 5As shown, it includes a base 1, an intelligent control box 2 is fixedly connected to the right side of the base 1, a first support shell 3 is fixedly connected to the left side of the base 1, a support leg is installed between the base 1 and the first support shell 3, a second support shell 4 is embedded on the sealed top cover of the first support shell 3, and a heat medium is filled in the first support shell 3 and the second support shell 4. The heat medium is a mixed solution of water and ethylene glycol. An exhaust pipe 5 is connected to the top cover of the second support shell 4, and the exhaust pipe 5 is used to discharge the vaporized ammonia and transfer it to the ammonia supply system. A first fixed sleeve 6 is fixedly connected to the middle part of the outer side of the second support shell 4, and six through holes with equal circumferential spacing are arranged on the upper side of the first fixed sleeve 6. The second support shell 4 cooperates with the first fixed sleeve 6 to form The first supporting shell 3 is provided with a spiral liquid inlet pipe 7, which prevents air blockage during the transportation of liquid ammonia. The spiral liquid inlet pipe 7 is wound around the outside of the second supporting shell 4 and the first fixed sleeve 6. During the flow of liquid ammonia along the spiral liquid inlet pipe 7, heat is exchanged with the heat medium in the first supporting shell 3. The outside of the first supporting shell 3 is fixedly connected with a second fixed sleeve 8, and the second fixed sleeve 8 cooperates with the first supporting shell 3 to form a closed annular cavity 2. The inside of the second supporting shell 4 is fixedly connected with a fixed plate 9, and a through hole is provided in the middle of the fixed plate 9. A one-way valve is installed at the through hole of the fixed plate 9. Liquid ammonia can only flow downward through the one-way valve on the fixed plate 9. The second supporting shell 4 is provided with a spiral liquid inlet pipe 7, which prevents air blockage during the transportation of liquid ammonia. The lower side of the support shell 4 is slidably connected with a sliding rod 10, and the upper end of the sliding rod 10 is fixedly connected with a first piston plate 11 which is sealed and slidably matched with the second support shell 4. The first piston plate 11 is located on the lower side of the fixed plate 9. A first elastic member 12 is fixedly connected between the first piston plate 11 and the second support shell 4. The first elastic member 12 is set as a spring. The elastic force of the first elastic member 12 is greater than the pressure of ammonia in the second support shell 4 to ensure the normal vaporization of liquid ammonia. A liquid guide tube 13 is connected between the second support shell 4 and the exhaust pipe 5. The material of the liquid guide tube 13 is the same as that of the spiral liquid inlet tube 7. An electromagnetic valve electrically connected to the intelligent control box 2 is installed in the liquid guide tube 13. The liquid guide tube 13 runs through the first support shell 3 and the second fixed sleeve 8, and the liquid guide tube 13 is located in the annular cavity 2, the first support shell 3 and the second fixed sleeve 8 are both equipped with electric heaters, the above-mentioned electric heaters are existing heating devices and are respectively distributed inside the first support shell 3 and the second fixed sleeve 8, not shown in the figure, the first support shell 3 and the second fixed sleeve 8 are both made of heat-insulating materials for keeping the heat medium warm, the second support shell 4, the first fixed sleeve 6 and the liquid guide tube 13 are all made of metal heat-conducting materials to improve the heat exchange efficiency between liquid ammonia and the heat medium, the first support shell 3, the sealing top cover of the second support shell 4 and the second fixed sleeve 8 are both equipped with temperature and pressure sensors, and the above-mentioned temperature and pressure sensors are electrically connected to the intelligent control box 2.

[0036] Before using the present invention, it is necessary to connect the discharge pipe of the pressure vessel with the upper end of the spiral liquid inlet pipe 7, liquid ammonia is stored in the pressure vessel, the upper end of the exhaust pipe 5 is connected with the gaseous ammonia delivery pipe, and the start button on the intelligent control box 2 is pressed. In the initial state, the first support shell 3 and the annular cavity 2 are filled with heat medium. At this time, the electric heater in the first support shell 3 and the second fixed sleeve 8 is working, and the heat medium in the first support shell 3 and the annular cavity 2 is heated synchronously. The temperature and pressure sensors on the second fixed sleeve 8 simultaneously transmit signals to the intelligent control box 2. When the temperature monitored by the two temperature and pressure sensors reaches the preset value, liquid ammonia is delivered to the spiral liquid inlet pipe 7, and the liquid ammonia flows along the spiral liquid inlet pipe 7 to the second support shell 4. During the flow of liquid ammonia, the liquid ammonia in the spiral liquid inlet pipe 7 exchanges heat with the heat medium in the first support shell 3. After the heat exchange is completed, the liquid ammonia has begun to vaporize in the process of flowing into the second support shell 4. The vaporized ammonia continues to flow upward along the second support shell 4 until it enters the exhaust pipe 5 and flows away along the gaseous ammonia delivery pipe.

[0037] In the above process, the electric heater in the first support shell 3 is always in working state, and the heat medium in the annular cavity 2 does not exchange heat with the liquid ammonia, so the electric heater in the second fixed sleeve 8 is always in a heat preservation state. During the transportation of liquid ammonia, if the pressure fluctuates, the flow rate of the liquid ammonia entering the spiral liquid inlet pipe 7 will be accelerated. Since the heat exchange time of the liquid ammonia in the spiral liquid inlet pipe 7 is shortened, part of the liquid ammonia enters the second support shell 4 without being vaporized, and the pressure fluctuation of the liquid ammonia will directly impact the second support shell 4, causing the second support shell 4 to be deformed and damaged. When the liquid ammonia produces pressure fluctuations, the pressure of the liquid ammonia entering the second support shell 4 acts on the one-way valve of the fixed plate 9, and the one-way valve on the fixed plate 9 is opened. Due to the increase in the pressure of the liquid ammonia in the second support shell 4, the first piston plate 11 begins to move downward after being subjected to pressure, and the first piston plate 11 drives the sliding rod 10 to move downward. At the same time, the first elastic member 12 is compressed, and the elastic force of the first elastic member 12 is used to buffer the impact force of the pressure fluctuation of the liquid ammonia on the second support shell 4, thereby extending the service life of the present invention.

[0038] After the liquid ammonia enters the second support shell 4, the temperature of the heat medium in the first support shell 3 decreases due to the increase in the amount of liquid ammonia entering. When the temperature and pressure sensor on the first support shell 3 detects the temperature drop, it transmits a signal to the intelligent control box 2. The intelligent control box 2 improves the working efficiency of the electric heater on the first support shell 3 and quickly heats the heat medium in the first support shell 3. When the pressure in the second support shell 4 returns to the initial value, under the elastic force of the first elastic member 12, the first piston plate 11 and the sliding rod 10 start to move upward and reset. Since the temperature of the heat medium in the first support shell 3 is already low, when the first piston plate 11 moves upward and squeezes the liquid ammonia (flowing into The liquid ammonia between the fixed plate 9 and the first piston plate 11 also exchanges heat with the heat medium in the first support shell 3 through the second support shell 4), the first piston plate 11 moves upward to reset and squeezes the liquid ammonia on its upper side. Since a one-way valve is installed on the fixed plate 9, the intelligent control box 2 opens the solenoid valve on the liquid guide tube 13, and then the liquid ammonia flows along the liquid guide tube 13. When the liquid ammonia flowing along the liquid guide tube 13 passes through the annular cavity 2, the liquid ammonia in the liquid guide tube 13 exchanges heat with the heat medium in the annular cavity 2, so that the liquid ammonia is vaporized in the liquid guide tube 13. The vaporized ammonia gas in the liquid guide tube 13 flows into the exhaust pipe 5, and then the intelligent control box 2 controls the solenoid valve on the liquid guide tube 13 to close.

[0039] When the liquid ammonia in the liquid guide tube 13 completes heat exchange with the heat medium in the annular cavity 2, the temperature of the heat medium in the annular cavity 2 will also decrease. The temperature and pressure sensor on the second fixed sleeve 8 detects the temperature drop and transmits a signal to the intelligent control box 2. The intelligent control box 2 switches the electric heater on the second fixed sleeve 8 from the insulation state to the heating state until the heat medium in the annular cavity 2 returns to the temperature before the heat exchange. Similarly, after the liquid ammonia pressure returns to normal, the working efficiency of the electric heater on the first support shell 3 decreases, and the heat medium in the first support shell 3 is maintained at a preset temperature. By changing the heat exchange path of the liquid ammonia, it can be prevented that the liquid ammonia in the second support shell 4 cannot be vaporized in a short time due to the low temperature of the heat medium, resulting in the accumulation of liquid ammonia in the second support shell 4.

[0040] Embodiment 2: Based on Embodiment 1, Figure 2-Figure 5As shown, it also includes a heat medium displacement mechanism, which is arranged in the annular cavity 2. The heat medium displacement mechanism is used to displace the heat medium in the annular cavity 1. The heat medium displacement mechanism includes a first connecting pipe 14, which is connected between the first fixed sleeve 6 and the first support shell 3. A one-way valve is installed in the first connecting pipe 14. The heat medium in the annular cavity 2 can only flow into the annular cavity 1 along the first connecting pipe 14. A second piston plate 15 is sealed and slidably connected between the first support shell 3 and the second fixed sleeve 8. The second piston plate 15 is located at the upper part of the second fixed sleeve 8 in the initial state. The liquid guide tube 13 passes through the second piston plate 15. The liquid guide tube 13 and the second piston plate 15 are sealed and slidably matched. When the second piston plate 15 moves, the liquid guide tube 13 will not bend. The second piston plate 15 is provided with a through hole. A one-way valve is installed at the through hole of the second piston plate 15. The heat medium on the upper side of the second piston plate 15 can only pass downward through the one-way valve thereon. The first supporting shell 3 is embedded with a second connecting pipe 14. Tube 16, a one-way valve is installed on the second connecting pipe 16. When the second piston plate 15 moves downward, the heat medium in the support shell 3 flows into the annular cavity 2 through the second connecting pipe 16. The second fixed sleeve 8 is fixedly connected with two symmetrical first electric push rods 17. The first electric push rod 17 is electrically connected to the intelligent control box 2. The second piston plate 15 is fixedly connected with two sliding rods that penetrate the second fixed sleeve 8 and are symmetrically distributed. Both sliding rods are sealed and slidably matched with the second fixed sleeve 8. The telescopic end of the first electric push rod 17 is fixedly connected to the adjacent sliding rod through the mounting plate. The telescopic end of the first electric push rod 17 drives the second piston plate 15 to move through the sliding rod. The sealing top cover of the second support shell 4, the first support shell 3 and the second fixed sleeve 8 are all equipped with temperature and pressure sensors. The three temperature and pressure sensors are all electrically connected to the intelligent control box 2. An insulation component is arranged on the outer side of the first fixed sleeve 6. The insulation component is used to reduce the heat exchange between the heat medium in the second support shell 4 and the first fixed sleeve 6 and the heat medium in the first support shell 3.

[0041] like Figure 7-Figure 9As shown, the thermal insulation assembly includes a first rotating sleeve 18, the first rotating sleeve 18 is rotatably connected to the outer side of the first fixed sleeve 6, the first fixed sleeve 6 is fixedly connected to the third fixed sleeve 19 through a mounting block, the third fixed sleeve 19 is fitted with the inner wall of the first rotating sleeve 18, the first rotating sleeve 18 and the third fixed sleeve 19 are both provided with five square through holes with equal circumferential spacing, in the initial state, the square through holes of the first rotating sleeve 18 and the third fixed sleeve 19 are in a connected state, the first fixed sleeve 6 is fixedly connected to the arc telescopic rod 20 through the mounting block, the telescopic end of the arc telescopic rod 20 is fixedly connected to the first rotating sleeve 18 through a mounting plate, and the arc The telescopic end of the telescopic rod 20 is used to drive the first rotating sleeve 18 to rotate. The second fixed sleeve 8 is provided with a driving component, and the driving component is used to change the matching state of the first rotating sleeve 18 and the third fixed sleeve 19. The first rotating sleeve 18 and the third fixed sleeve 19 are both set to heat-insulating materials to reduce the heat exchange between the heat medium in the second support shell 4 and the first fixed sleeve 6 and the heat medium in the first support shell 3. A gap is set between the third fixed sleeve 19 and the first fixed sleeve 6 to facilitate the flow of the heat medium in the gap between the third fixed sleeve 19 and the first fixed sleeve 6, so that the temperature of the heat medium on both sides of the first fixed sleeve 6 is kept constant.

[0042] like Figure 3 and Fig. 9 As shown, the driving component includes a fixed shell 21, which is fixedly connected to the second fixed sleeve 8 through a mounting plate. An oil guide pipe is connected between the fixed shell 21 and the arc telescopic rod 20, and the oil guide pipe passes through the first support shell 3 and the second fixed sleeve 8. The oil guide pipe is sealed with the first support shell 3 and the second fixed sleeve 8. A second electric push rod 22 is fixedly connected to the mounting plate of the fixed shell 21. The second electric push rod 22 is located at the rear side of the fixed shell 21. The second electric push rod 22 is electrically connected to the intelligent control box 2. A third piston plate 23 is fixedly connected to the telescopic end of the second electric push rod 22. A heat insulating member is installed between the second electric push rod 22 and the third piston plate 23. The third piston plate 23 is sealed and slidably matched with the fixed shell 21. Hydraulic oil is injected between the fixed shell 21 and the third piston plate 23. The telescopic state of the telescopic rod of the arc telescopic rod 20 is changed by the telescopic end of the second electric push rod 22.

[0043] In the process of liquid ammonia flowing along the spiral liquid inlet pipe 7, the temperature and pressure sensors on the sealed top cover of the second support shell 4 detect the ammonia gas in the second support shell 4. When the temperature value detected by the temperature and pressure sensors on the sealed top cover of the second support shell 4 is too low and the pressure value is too large, and at the same time, the temperature value detected by the temperature and pressure sensors on the first support shell 3 is too low, it proves that the amount of liquid ammonia entering does not match the temperature of the heat medium in the first support shell 3, and the electric heater in the first support shell 3 is in the working state of maximum power, and the temperature of the heat medium cannot be effectively increased, thereby causing the accumulation of liquid ammonia in the second support shell 4 (liquid ammonia on the upper side of the fixed plate 9). The temperature and pressure sensors on the sealed top cover of the second support shell 4 transmit signals to the intelligent control box 2, and the intelligent control box 2 controls the second electric push rod 22 to start. The telescopic end of the second electric push rod 22 drives the third piston plate 23 thereon to move forward. The hydraulic oil in the fixed shell 21 is squeezed and flows into the arc-shaped telescopic rod 20 along the oil guide pipe. The telescopic end of the arc-shaped telescopic rod 20 extends outward. The telescopic end of the arc-shaped telescopic rod 20 drives the first rotating sleeve 18 to rotate through the mounting plate. The first rotating sleeve 18 and the third fixed sleeve 19 are misaligned. The fixed sleeves 19 complete mutual sealing, and then the intelligent control box 2 controls the second electric push rod 22 to close, and at the same time, the intelligent control box 2 controls the two first electric push rods 17 to start, and the telescopic ends of the first electric push rods 17 drive the adjacent sliding rods to move downward, and the two sliding rods drive the second piston plate 15 to move downward, and the second piston plate 15 squeezes the heat medium on the lower side downward (the temperature of the heat medium in the annular cavity 2 is greater than the temperature of the heat medium in the first support shell 3), and the heat medium in the annular cavity 2 flows into the annular cavity 1 through the first connecting pipe 14. As the heat medium is gradually injected into the annular cavity 1, the heat medium originally in the annular cavity 1 begins to flow upward, and passes through the first fixed sleeve 19. In the above process, under the sealing effect of the first rotating sleeve 18 and the third fixed sleeve 19, the heat exchange between the heat medium flowing through the annular cavity one and the heat medium in the first supporting shell 3 is reduced, so that most of the heat in the heat medium is exchanged with the liquid ammonia in the second supporting shell 4, and the vaporization efficiency of the liquid ammonia in the second supporting shell 4 is improved. At the same time, the heat medium in the first supporting shell 3 enters the annular cavity two through the second connecting pipe 16, and the heat medium flowing upward along the annular cavity one exchanges heat with the liquid ammonia in the second supporting shell 4, thereby improving the vaporization efficiency of the liquid ammonia in the second supporting shell 4 and reducing the accumulation in the second supporting shell 4.

[0044] As the pressure in the second support shell 4 gradually decreases, under the action of the elastic force of the first elastic member 12, the liquid nitrogen in the first piston plate 11 slowly resets. In the above process, the liquid ammonia flowing through the liquid guide tube 13 also flows slowly, which prolongs the heat exchange time with the heat medium newly entering the annular cavity 2. At the same time, the intelligent control box 2 controls the telescopic ends of the two first electric push rods 17 to reset. When the second piston plate 15 moves upward, the one-way valve thereon opens, and the one-way valve in the second connecting pipe 16 closes. The heat medium located on the upper side of the second piston plate 15 flows to the lower side of the second piston plate 15. During the reset of the second piston plate 15 During the operation, the electric heaters on the first supporting shell 3 and the second fixed sleeve 8 continue to work. When the second piston plate 15 is reset, the intelligent control box 2 controls the two first electric push rods 17 to close. While the second piston plate 15 is reset, the intelligent control box 2 controls the second electric push rod 22 to start. The telescopic end of the second electric push rod 22 drives the third piston plate 23 to reset. The hydraulic oil in the arc-shaped telescopic rod 20 flows back to the fixed shell 21. The telescopic end of the arc-shaped telescopic rod 20 is retracted. The telescopic end of the arc-shaped telescopic rod 20 drives the first rotating sleeve 18 to reset, and the through hole of the first rotating sleeve 18 is reconnected with the through hole of the third fixed sleeve 19.

[0045] Embodiment 3: Based on Embodiment 2, Fig.10 As shown, it also includes a stirring mechanism, which is arranged at the bottom of the first supporting shell 3. The stirring mechanism is used to drive the heat medium in the first supporting shell 3 to flow. The stirring mechanism includes a second rotating sleeve 24, which is rotatably connected to the bottom of the first supporting shell 3. The second rotating sleeve 24 is sealed with the first supporting shell 3. The second rotating sleeve 24 is fixedly connected to three stirring blades 25 with circumferential equal spacing through an annular mounting plate. The upper ends of the stirring blades 25 are lower than the lower side of the first fixed sleeve 6. The three stirring blades 25 will not contact other structures during rotation, and the three stirring blades 25 drive the heat medium in the first supporting shell 3 to flow in one direction. A first motor 26 is fixedly connected to the bottom of the first supporting shell 3. The first motor 26 is located on the right side of the first supporting shell 3. The first motor 26 is electrically connected to the intelligent control box 2. The first motor 26 and the second rotating sleeve 24 are both equipped with pulleys, and a belt is wound between the two pulleys.

[0046] When the present invention is in working state, the intelligent control box 2 controls the first motor 26 to start, and the output shaft of the first motor 26 drives the second rotating sleeve 24 to rotate circumferentially through the belt and the pulley, thereby driving the three stirring blades 25 on the second rotating sleeve 24 to rotate, and the three stirring blades 25 stir the heat medium in the first supporting shell 3, so that the heat medium in the first supporting shell 3 is in a flowing state, and the flowing heat medium can not only be in uniform contact with the second supporting shell 4, but also can ensure that the heat medium in the first supporting shell 3 passes through the through holes of the first rotating sleeve 18 and the third fixed sleeve 19, so that the heat medium between the first rotating sleeve 18 and the first fixed sleeve 6 is in a flowing state, so that the temperature of the heat medium between the second supporting shell 4 and the first fixed sleeve 6 is consistent with the heat medium in the first supporting shell 3; after the use of the present invention is finished, the intelligent control box 2 controls the first motor 26 to turn off, so that the three stirring blades 25 stop rotating.

[0047] Embodiment 4: Based on Embodiment 3, Fig.10 and Fig.11 As shown, it also includes a limiting mechanism, which is arranged between the sliding rod 10 and the second rotating sleeve 24. The limiting mechanism is used to slow down the reset time of the first piston plate 11. The limiting mechanism includes a rotating rod 27, which is rotatably connected to the middle part of the second rotating sleeve 24. The central axis of the rotating rod 27 coincides with the central axis of the second rotating sleeve 24. The rotating rod 27 is sealed with the second rotating sleeve 24. A second motor 28 is fixedly connected to the bottom of the first support shell 3. The second motor 28 is electrically connected to the intelligent control box 2. The output shaft of the second motor 28 is fixedly connected to the rotating rod 27. The second motor 28 is set as a reciprocating motor. The rotating rod 27 The top of the limit block 29 is fixedly connected, and the limit block 29 is provided with two limit grooves which are symmetrical in center. The lower part of the sliding rod 10 is fixedly connected with a fixed disk 30, and the bottom end of the sliding rod 10 is rotatably connected with a rotating disk 31, and the rotating disk 31 is located below the fixed disk 30. The limit block 29 is located below the fixed disk 30, and a second elastic member 32 is fixedly connected between the rotating disk 31 and the fixed disk 30. The second elastic member 32 is configured as a torsion spring, and the second elastic member 32 is wound around the lower part of the sliding rod 10. Two limit hooks 33 which are symmetrical in center are provided on the lower side of the rotating disk 31, and the limit hooks 33 are limitedly matched with the adjacent limit grooves on the limit block 29.

[0048] When the pressure in the second support shell 4 increases, the pressure in the second support shell 4 acts on the first piston plate 11, the first piston plate 11 and the sliding rod 10 move downward, and the liquid ammonia flows downward through the one-way valve on the fixed plate 9. When the pressure in the second support shell 4 continues to increase, the sliding rod 10 drives the rotating disk 31 and the fixed disk 30 to move downward. When the two limit hooks 33 contact the limit block 29, the two limit hooks 33 drive the rotating disk 31 to rotate along the sliding rod 10, and the second elastic member 32 is tightened at the same time. When the two limit hooks 33 are separated from the limit block 29, they are reset under the elastic force of the second elastic member 32, and the two limit hooks 33 are in contact with the limit block 29. The first support shell 4 is in a limited matching state with the limit block 29. When the value monitored by the temperature and pressure sensor on the second support shell 4 exceeds the preset value, the liquid ammonia is stopped from being input into the spiral liquid inlet pipe 7, and the electric heaters on the first support shell 3 and the second fixed sleeve 8 work, so that the temperature of the heat medium in the annular cavity 1 and the annular cavity 2 gradually increases, the liquid ammonia in the second support shell 4 gradually vaporizes, and the pressure in the second support shell 4 gradually decreases. Since the liquid ammonia content between the fixed plate 9 and the first piston plate 11 is relatively large, in order to ensure the temperature recovery of the internal heat medium of the present invention, at this time, during the pressure recovery process in the second support shell 4, the first piston plate 11 is in a stationary state.

[0049] Then the intelligent control box 2 controls the solenoid valve on the liquid conduit 13 to open. Since the first piston plate 11 will not squeeze the liquid ammonia thereon upward, as the liquid ammonia gradually vaporizes, the pressure between the first piston plate 11 and the fixed plate 9 gradually decreases. After a period of time, the temperature of the heat medium between the first support shell 3 and the second fixed sleeve 8 increases, and the intelligent control box 2 controls the second motor 28 to start. The output shaft of the second motor 28 drives the limit block 29 to rotate counterclockwise (at a top view angle) through the rotating rod 27. The limit block 29 rotates counterclockwise and gradually releases the match with the limit hook 33. Then, under the elastic force of the first elastic member 12, the remaining liquid ammonia between the fixed plate 9 and the first piston plate 11 flows along the liquid conduit 13 to complete the heat exchange with the heat medium between the first support shell 3 and the second fixed sleeve 8 until the first piston plate 11 is completely reset. During the reset of the first piston plate 11, the second motor 28 drives the limit block 29 to reset through the rotating rod 27, and then the intelligent control box 2 controls the second motor 28 and the solenoid valve on the liquid conduit 13 to close.

[0050] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention.

Claims

1. An ammonia supply system based on intelligent operation and maintenance, comprising a base (1), one side of the base (1) being fixedly connected to an intelligent control box (2), wherein: The invention also comprises a first support shell (3), the first support shell (3) being fixedly connected to the other side of the base (1), a second support shell (4) being embedded on the sealed top cover of the first support shell (3), the top cover of the second support shell (4) being connected to an exhaust pipe (5), a first fixing sleeve (6) being fixedly connected to the middle of the outer side of the second support shell (4) and having through holes at circumferentially equal intervals on the upper side, the second support shell (4) and the first fixing sleeve (6) being cooperated to form an annular cavity 1, a spiral liquid inlet pipe (7) being connected between the second support shell (4) and the first support shell (3), a second fixing sleeve (8) being fixedly connected to the outer side of the first support shell (3), both the first support shell (3) and the second fixing sleeve (8) being filled with heat medium, the second fixing sleeve (8) and the first fixing sleeve (8) being connected to the first support shell (3), and the second fixing sleeve (8) and the second fixing sleeve (8) being connected to the first support shell (3). The first support shell (3) cooperates to form a sealed annular cavity II; a fixed plate (9) having a through hole in the middle is fixedly connected to the interior of the second support shell (4); a one-way valve is installed at the through hole of the fixed plate (9); a sliding rod (10) is slidably connected to the lower side of the second support shell (4); a first piston plate (11) which is sealed and slidably matched with the second support shell (4) is fixedly connected to the upper end of the sliding rod (10); a first elastic member (12) is fixedly connected between the first piston plate (11) and the second support shell (4); a liquid guide tube (13) installed with a solenoid valve is connected between the second support shell (4) and the exhaust pipe (5); the liquid guide tube (13) passes through the first support shell (3) and the second fixed sleeve (8) and is located in the annular cavity II; The elastic force of the first elastic member (12) is greater than the pressure of the ammonia gas in the second supporting shell (4); The first supporting shell (3) and the second fixing sleeve (8) are both equipped with electric heaters.

2. According to claim 1, an ammonia supply system based on intelligent operation and maintenance is characterized in that: The first supporting shell (3) and the second fixing sleeve (8) are both made of heat-insulating materials, and the second supporting shell (4), the first fixing sleeve (6) and the liquid guiding tube (13) are all made of metal heat-conducting materials.

3. The ammonia supply system based on intelligent operation and maintenance according to claim 1 is characterized in that: The heat medium displacement mechanism is also included, the heat medium displacement mechanism is arranged in the annular cavity 2, the heat medium displacement mechanism includes a first connecting pipe (14), the first connecting pipe (14) is connected between the first fixed sleeve (6) and the first support shell (3), a one-way valve is installed in the first connecting pipe (14), a second piston plate (15) is sealed and slidably connected between the first support shell (3) and the second fixed sleeve (8), the liquid guide pipe (13) passes through the second piston plate (15), the liquid guide pipe (13) and the second piston plate (15) are sealed and slidably matched, the second piston plate (15) is provided with a through hole, a one-way valve is installed at the through hole of the second piston plate (15), and the first support shell (3) and the second fixed sleeve (8) are sealed and slidably connected. 3) is embedded with a second connecting pipe (16), a one-way valve is installed on the second connecting pipe (16), the second fixing sleeve (8) is fixedly connected with a symmetrical first electric push rod (17), the first electric push rod (17) is electrically connected to the intelligent control box (2), the second piston plate (15) is fixedly connected with a sliding rod that passes through the second fixing sleeve (8) and is symmetrically distributed, the telescopic end of the first electric push rod (17) is fixedly connected to the adjacent sliding rod through the mounting plate, the sealing top cover of the second support shell (4), the first support shell (3) and the second fixing sleeve (8) are all installed with temperature and pressure sensors, the three temperature and pressure sensors are all electrically connected to the intelligent control box (2), and a temperature insulation component is arranged on the outer side of the first fixing sleeve (6).

4. The ammonia supply system based on intelligent operation and maintenance according to claim 3 is characterized in that: The thermal insulation assembly comprises a first rotating sleeve (18), the first rotating sleeve (18) being rotatably connected to the outer side of the first fixed sleeve (6), the first fixed sleeve (6) being fixedly connected to a third fixed sleeve (19) via a mounting block, the third fixed sleeve (19) being in contact with the inner wall of the first rotating sleeve (18), the first rotating sleeve (18) and the third fixed sleeve (19) being both provided with square through holes with circumferentially equal spacing, the first fixed sleeve (6) being fixedly connected to an arc-shaped telescopic rod (20) via a mounting block, the telescopic end of the arc-shaped telescopic rod (20) being fixedly connected to the first rotating sleeve (18) via a mounting plate, and the second fixed sleeve (8) being provided with a driving component.

5. The ammonia supply system based on intelligent operation and maintenance according to claim 4 is characterized in that: A gap is provided between the third fixing sleeve (19) and the first fixing sleeve (6), so as to facilitate the flow of heat medium in the gap between the third fixing sleeve (19) and the first fixing sleeve (6).

6. The ammonia supply system based on intelligent operation and maintenance according to claim 4 is characterized in that: The driving component comprises a fixed shell (21), the fixed shell (21) being fixedly connected to the second fixed sleeve (8) via a mounting plate, an oil guide pipe being connected between the fixed shell (21) and the arc-shaped telescopic rod (20), the oil guide pipe penetrating the first supporting shell (3) and the second fixed sleeve (8), a second electric push rod (22) being fixedly connected to the mounting plate of the fixed shell (21), the second electric push rod (22) being electrically connected to the intelligent control box (2), a third piston plate (23) being fixedly connected to the telescopic end of the second electric push rod (22), the third piston plate (23) being sealed and slidably matched with the fixed shell (21), and hydraulic oil being injected between the fixed shell (21) and the third piston plate (23).

7. The ammonia supply system based on intelligent operation and maintenance according to claim 4 is characterized in that: The first rotating sleeve (18) and the third fixed sleeve (19) are both made of heat-insulating material to reduce heat exchange between the heat medium in the second supporting shell (4) and the first fixed sleeve (6) and the heat medium in the first supporting shell (3).

8. The ammonia supply system based on intelligent operation and maintenance according to claim 7 is characterized in that: The invention also comprises a stirring mechanism, the stirring mechanism being arranged at the bottom of the first supporting shell (3), the stirring mechanism comprising a second rotating sleeve (24), the second rotating sleeve (24) being rotatably connected to the bottom of the first supporting shell (3), the second rotating sleeve (24) being fixedly connected to stirring blades (25) with circumferentially equal spacing via an annular mounting plate, the upper ends of the stirring blades (25) being lower than the lower side of the first fixed sleeve (6), the bottom of the first supporting shell (3) being fixedly connected to a first motor (26), the first motor (26) being electrically connected to the intelligent control box (2), and the first motor (26) and the second rotating sleeve (24) being driven by a pulley and a belt.

9. The ammonia supply system based on intelligent operation and maintenance according to claim 8 is characterized in that: The invention also comprises a limiting mechanism, wherein the limiting mechanism is arranged between the sliding rod (10) and the second rotating sleeve (24), the limiting mechanism comprises a rotating rod (27), the rotating rod (27) is rotatably connected to the middle part of the second rotating sleeve (24), the rotating rod (27) and the second rotating sleeve (24) are sealed and matched, a second motor (28) is fixedly connected to the bottom of the first supporting shell (3), the second motor (28) is electrically connected to the intelligent control box (2), an output shaft of the second motor (28) is fixedly connected to the rotating rod (27), and the rotating The top end of the rod (27) is fixedly connected to a limit block (29), and the limit block (29) is provided with a limit groove in a centrally symmetrical manner. The lower part of the sliding rod (10) is fixedly connected to a fixed disk (30), and the bottom end of the sliding rod (10) is rotatably connected to a rotating disk (31). A second elastic member (32) is fixedly connected between the rotating disk (31) and the fixed disk (30). A limit hook (33) in a centrally symmetrical manner is provided on one side of the rotating disk (31) close to the limit block (29), and the limit hook (33) is limitedly matched with an adjacent limit groove on the limit block (29).

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