Water supplementing device for reducing ammonia gas leakage of synthesis kettle and synthesis kettle

Abstract

The utility model relates to a water supplementing device for reducing ammonia gas leakage of a synthesis kettle and the synthesis kettle, the water supplementing device is used for being connected to a mechanical sealing position of the synthesis kettle, and the mechanical sealing position comprises a first sealing position located at an end cover mounting position of the synthesis kettle and a second sealing position located at a connecting position of the end cover and a stirring shaft of the synthesis kettle; the water supplementing device comprises a water supplementing tank, a first pipeline and a second pipeline, the first pipeline and the second pipeline are installed at the water outlet end of the water supplementing tank, the water outlet end of the first pipeline is connected to the first sealing position, and the water outlet end of the second pipeline is connected to the second sealing position. By utilizing the principle that ammonia gas is easily dissolved in water, water is supplemented to a sealing position where ammonia gas leaks, so that the ammonia gas is absorbed and dissolved, the concentration of the ammonia gas is effectively reduced, and water serving as a lubricant can play a certain role in cooling high temperature generated at the joint of the end cover and the stirring shaft of the synthesis kettle, so that the service life of the synthesis kettle is prolonged. And meanwhile, water sealing can be conducted on the mechanical seal abrasion position, and leakage of ammonia gas is further blocked.

Description

Technical Field

[0001] The present application relates to the technical field of lithium-ion batteries, and in particular to a water replenishing device and a synthesis reactor for reducing ammonia leakage in a synthesis reactor. Background Art

[0002] At present, the main equipment used in the precursor synthesis process is the synthesis kettle. A motor is connected to the top of the synthesis kettle, and the motor is connected to the stirring shaft. The stirring shaft passes through the end cover of the synthesis kettle and penetrates into the cavity for stirring. There is a circumferential gap at the connection between the stirring shaft and the end cover, and the circumferential gap is generally sealed by a mechanical sealing device.

[0003] However, during the mixing process of the materials, the mixing shaft and the mechanical seal will continuously rub against each other, which may easily cause wear of the mechanical seal, and then ammonia will leak from the damaged seal. In addition, the mixing shaft will generate high temperature during high-speed rotation and cannot be cooled or lubricated. In addition, the end cover pressure at the top of the synthesis reactor will also cause ammonia leakage due to the loose sealing of the end cover, and ammonia leakage will cause the ammonia concentration in the workshop to rise, causing great harm to the health of the workshop operators.

[0004] Therefore, it is urgent to provide a water replenishing device for reducing ammonia leakage in a synthesis reactor to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on this, a water replenishing device and a synthesis reactor for reducing ammonia leakage in a synthesis reactor are provided. The water replenishing device can replenish water to the sealing position where ammonia leaks, thereby absorbing and dissolving the ammonia, effectively reducing the ammonia concentration.

[0006] On the one hand, a water replenishing device for reducing ammonia leakage of a synthesis reactor is provided, wherein the water replenishing device is used to be connected to a mechanical seal of the synthesis reactor, wherein the mechanical seal includes a first sealing position located at an end cover installation position of the synthesis reactor, and a second sealing position located at a connection between the end cover and a stirring shaft of the synthesis reactor; the water replenishing device includes a water replenishing tank and a first pipe and a second pipe installed at a water outlet end of the water replenishing tank, wherein the water outlet end of the first pipe is configured to be connected to the first sealing position, and the water outlet end of the second pipe is configured to be connected to the second sealing position.

[0007] Preferably, the automatic water replenishing device also includes a first gas concentration detection device, a first pneumatic valve and a PLC control cabinet; the first gas concentration detection device is provided with a first ammonia extraction pipeline, and the free end of the first ammonia extraction pipeline is at least configured to be arranged above the first sealing position; the first pneumatic valve is arranged on the first pipeline; the PLC control cabinet is used to interlock the first pneumatic valve and the first gas concentration detection device, and control the opening of the first pneumatic valve according to the detection signal of the first gas concentration detection device.

[0008] Preferably, the automatic water replenishing device also includes a second gas concentration detection device and a second pneumatic valve, the second gas concentration detection device is provided with a second ammonia extraction pipeline, and the free end of the second ammonia extraction pipeline is at least configured to be arranged above the second sealing position; the second pneumatic valve is arranged on the second pipeline and is interlocked with the second gas concentration detection device through a PLC control cabinet; the PLC control cabinet can control the opening of the second pneumatic valve according to the detection signal of the second gas concentration detection device.

[0009] Preferably, both the first gas concentration detection device and the second gas concentration detection device are provided with an alarm module. When the concentration of ammonia in the first ammonia extraction pipeline reaches a threshold value, the alarm module in the first gas concentration detection device sounds an alarm, and / or when the concentration of ammonia in the second ammonia extraction pipeline reaches a threshold value, the alarm module in the second gas concentration detection device sounds an alarm.

[0010] Preferably, the first sealing position and the second sealing position are respectively provided with water outlets; wherein the water replenishing device further comprises a liquid collecting tank; the liquid collecting tank is respectively connected to the water outlets of the first sealing position and the second sealing position through a liquid collecting pipe.

[0011] Preferably, the water replenishing device further includes a purification device; the purification device is located at the water inlet end of the liquid collecting tank and / or the water outlet end of the liquid collecting pipe, and is used to purify the ammonia water flowing down from the liquid collecting pipe.

[0012] Preferably, the purification device includes an activated carbon layer, which is arranged on the upper part of the liquid collecting tank and divides the liquid collecting tank into a wastewater area and a purification area, the wastewater area is connected to the water outlet end of the liquid collecting pipe, the purification area is used to store deammonium water, and a deammonium water outlet is provided at the purification area.

[0013] Preferably, a circulation pipe is provided between the outlet of the deammonium water and the water inlet of the water replenishment tank, and a circulation pump is provided on the circulation pipe, and the circulation pump is used to pump the deammonium water into the water replenishment tank for circulation.

[0014] Preferably, the liquid collecting tank is provided with a first liquid level gauge, and the water making tank is provided with a second liquid level gauge; the first liquid level gauge, the second liquid level gauge and the circulating pump are interlocked through a PLC control cabinet; when the second liquid level gauge detects that the water making tank is at a low liquid level, and the first liquid level gauge detects that the liquid collecting tank is at a high liquid level, the PLC control cabinet controls the circulating pump to start replenishing water into the water making tank; when the second liquid level gauge detects that the water making tank is at a high liquid level, and the first liquid level gauge detects that the liquid collecting tank is at a low liquid level, the PLC control cabinet controls the circulating pump to stop replenishing water.

[0015] The second aspect of the present application provides a synthesis reactor, wherein the mechanical seal of the synthesis reactor is connected with the water replenishing device for reducing ammonia leakage of the synthesis reactor. The synthesis reactor has low ammonia leakage risk and long service life.

[0016] Preferably, the mechanical seal includes a first sealing position located at the installation position of the end cover of the synthesis reactor, and a second sealing position located at the connection between the end cover and the stirring shaft of the synthesis reactor.

[0017] Beneficial effects:

[0018] The present application utilizes the principle that ammonia is easily soluble in water to add a water replenishing tank, a first pipeline and a second pipeline. The water outlet end of the first pipeline is configured to be arranged at a first sealing position at the end cover installation position of the synthesis kettle. When ammonia leaks, water is sprayed to the leakage position of the first sealing position through the water outlet end of the first pipeline, thereby absorbing the escaped ammonia and reducing the ammonia concentration; the water outlet end of the second pipeline is configured to be arranged at a second sealing position at the connection between the end cover and the stirring shaft of the synthesis kettle. When ammonia leaks, water is sprayed to the leakage position of the second sealing position through the water outlet end of the second pipeline, thereby absorbing the escaped ammonia and reducing the ammonia concentration, and the sealing position of the mechanical seal can also be water-sealed, and the mechanical seal can also be cooled to extend the service life; thereby, the ammonia concentration can be effectively controlled below 20%, which not only meets environmental protection requirements, but also does not cause harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a water replenishing device for reducing ammonia leakage in a synthesis reactor in this embodiment.

[0020] Figure numerals: 1. synthesis kettle; 11. end cover; 12. stirring shaft; 13. motor; 14. sealing cover; 2. first pipeline; 21. first pneumatic valve; 3. second pipeline; 31. second pneumatic valve; 4. water supply tank; 41. second liquid level gauge; 5. first gas concentration detection device; 6. first ammonia extraction pipeline; 7. PLC control cabinet; 8. second gas concentration detection device; 9. second ammonia extraction pipeline; 10. liquid collecting tank; 101. liquid collecting pipe; 102. purification device; 103. circulation pipe; 1031. circulation pump; 104. first liquid level gauge. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present application in a schematic manner, and therefore the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0024] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] The mixed salt and ammonia water undergo a synthesis reaction with the alkali solution at the feed port of the kettle body. During the synthesis reaction, the stirring shaft needs to rotate continuously, and the blades of the stirring shaft stir and mix the materials. During the uninterrupted operation of the stirring shaft, the stirring shaft rubs against the mechanical seal, causing the mechanical seal (most of the mechanical seals in the prior art are provided as sealing rings, skeleton oil seals or wool felt provided between the shaft and the aperture, and the sealing rings are generally resistant to high temperatures) to be damaged. Ammonia will leak from the damaged part of the mechanical seal, causing the ammonia concentration to rise. When the ammonia concentration is greater than 13ppm, it will increase the interference ability to the disease and cause great harm to the body of the workshop operators. When the ammonia concentration is 15%VOL, it will reach the lower limit concentration of ammonia combustion and explosion.

[0026] Therefore, by providing a water replenishing device for reducing ammonia leakage in the synthesis reactor of the present application, water can be replenished at the mechanical seal, thereby absorbing and dissolving the leaked ammonia, and water can be used as a lubricant to cool down the high temperature generated at the stirring shaft and the mechanical seal, thereby extending the service life.

[0027] The following is a detailed description of a water replenishment device for reducing ammonia leakage in a synthesis reactor provided by the present application. Figure 1 As shown, the water replenishing device is used to be connected to the mechanical seal of the synthesis reactor 1, wherein the mechanical seal includes a first sealing position located at the installation position of the end cover 11 of the synthesis reactor 1, and a second sealing position located at the connection position of the end cover 11 and the stirring shaft 12 of the synthesis reactor 1; in this embodiment, the end cover 11 is arranged on the top of the synthesis reactor 1, so that the installation position of the end cover 11 and the synthesis reactor 1 is set as the first sealing position; a stirring device is arranged on the end cover 11, and the stirring device includes a stirring shaft 12 and a motor 13, the motor 13 is connected to the stirring shaft 12, and the stirring shaft 12 passes through The end cover 11 extends into the synthesis reactor 1, so that the second sealing position is set at the connection between the stirring shaft 12 and the end cover 11; the water replenishing device includes a water replenishing tank 4 and a first pipe 2 and a second pipe 3 installed at the water outlet end of the water replenishing tank 4. Water replenishing operations can be performed in the first pipe 2 and the second pipe 3 respectively through the water replenishing tank 4. The water outlet end of the first pipe 2 is configured to be connected to the first sealing position, and is used to spray water on the leakage of the first sealing position; the water outlet end of the second pipe 3 is configured to be connected to the second sealing position, and is used to spray water on the leakage of the second sealing position.

[0028] In this embodiment, the water outlet end of the first pipe 2 is configured to be set at the first sealing position, that is, the sealing position where the end cover 11 and the synthesis reactor 1 are installed. When there is ammonia leakage, water is sprayed to the leakage position of the first sealing position through the water outlet end of the first pipe 2, so that the escaped ammonia is absorbed and the ammonia concentration is reduced; the water outlet end of the second pipe 3 is configured to be set at the second sealing position, that is, the sealing position where the end cover 11 and the stirring shaft 12 are connected. When there is ammonia leakage, water is sprayed to the leakage position of the second sealing position through the water outlet end of the second pipe 3, so that the escaped ammonia is absorbed and the ammonia concentration is reduced. At the same time, the water in this embodiment can also be used as a lubricant, which can play a certain cooling effect on the high temperature generated at the connection between the end cover 11 and the stirring shaft 12, and can also perform water sealing on the wear of the mechanical seal to further prevent the leakage of ammonia.

[0029] In some embodiments, the water inlet end of the second pipe 3 is connected to the bottom of the water supply tank 4, and the water inlet end of the first pipe 2 is connected to the second pipe 3. In other words, the water from the water supply tank 4 is divided into two at the position where the first pipe 2 and the second pipe 3 are connected, one part flows into the first pipe 2, and the other part flows into the second pipe 3. Of course, the specific layout is not specifically limited in this embodiment.

[0030] In some embodiments, the automatic water replenishment device also includes a first gas concentration detection device 5, a first pneumatic valve 21 and a PLC control cabinet 7; when ammonia leaks, it is necessary to detect it through an instrument such as the first gas concentration detection device 5, so as to facilitate accurate control of the concentration of ammonia leakage and to determine the location where the leakage occurs. The first gas concentration detection device 5 is provided with a first ammonia extraction pipeline 6, and the free end of the first ammonia extraction pipeline 6 is at least configured to be arranged above the first sealing position, that is, the end cover 11 and the installation position of the synthesis reactor 1, so that when ammonia leaks at the first sealing position, the free end of the first ammonia extraction pipeline 6 can extract the rising ammonia in time. Preferably, a sealing cover 14 is provided at the top position of the end cover 11. When the end cover 11 is not tightly sealed, the ammonia leaked at the first sealing position is collected in the area of ​​the sealing cover 14, and the free end of the first ammonia extraction pipeline 6 extends into the sealing cover 14, thereby extracting the ammonia collected in the sealing cover 14.

[0031] The first pneumatic valve 21 is arranged on the first pipeline 2, and the first pneumatic valve 21 is mainly used to control the opening and closing of the first pipeline 2. The first pneumatic valve 21 and the first gas concentration detection device 5 are interlocked through the PLC control cabinet 7. The PLC control cabinet 7 controls the opening of the first pneumatic valve 21 according to the detection signal of the first gas concentration detection device 5.

[0032] In some embodiments, the automatic water replenishing device also includes a second gas concentration detection device 8 and a second pneumatic valve 31; a second ammonia extraction pipeline 9 is arranged on the second gas concentration detection device 8, and the free end of the second ammonia extraction pipeline 9 is at least configured to be arranged above the second sealing position, that is, the connection between the end cover 11 and the stirring shaft 12. In this way, when there is ammonia leakage at the second sealing position, the free end of the second ammonia extraction pipeline 9 can extract ammonia in time.

[0033] The second pneumatic valve 31 is arranged on the second pipeline 3, and the second pneumatic valve 31 is mainly used to control the on-off of the second pipeline 3. The second pneumatic valve 31 and the second gas concentration detection device 8 are interlocked through the PLC control cabinet 7. The PLC control cabinet 7 can control the opening of the second pneumatic valve 31 according to the detection signal of the second gas concentration detection device 8.

[0034] In some embodiments, both the first gas concentration detection device 5 and the second gas concentration detection device 8 are provided with an alarm module. When the concentration of ammonia in the first ammonia extraction pipeline 6 reaches a threshold value, the alarm module in the first gas concentration detection device 5 sounds an alarm, and / or when the concentration of ammonia in the second ammonia extraction pipeline 9 reaches a threshold value, the alarm module in the second gas concentration detection device 8 sounds an alarm. Thus, the first pneumatic valve 21 will be opened and closed according to the detection threshold value of the first gas concentration detection device 5, and the alarm module in the first gas concentration detection device 5 will also be opened. When a leak occurs at the first sealing position where the end cover 11 is located, the first ammonia extraction pipeline 6 will extract the leaked ammonia to the first gas concentration detection device 5 at the first time. When the concentration of the leaked ammonia reaches the detection threshold value of the first gas concentration detection device 5, the alarm module of the first gas concentration detection device 5 will sound an alarm. At this time, the PLC control cabinet 7 controls the first pneumatic valve 21 to open, and the water in the water supply tank 4 will enter the leak through the first pipeline 2 to absorb the ammonia. The second pneumatic valve 31 will open and close according to the detection threshold of the second gas concentration detection device 8, and the alarm module in the second gas concentration detection device 8 will also open. When the second sealing position at the connection between the end cover 11 and the stirring shaft 12 leaks and the ammonia concentration rises, the free end of the second ammonia extraction pipeline 9 will extract the leaked ammonia to the second gas concentration detection device 8 at the first time. When the concentration of the leaked ammonia reaches the detection threshold of the second gas concentration detection device 8, the alarm module of the second gas concentration detection device 8 alarms. At this time, the PLC control cabinet 7 controls the second pneumatic valve 31 to open, and the water in the water supply tank 4 will enter the leakage through the second pipeline 3 to absorb the ammonia, and form a water seal film at the mechanical seal of the stirring shaft 12 and the end cover 11; at the same time, water can be used as a lubricant, which can play a certain cooling role on the high temperature generated at the mechanical seal of the stirring shaft 12, and can also perform water sealing on the wear of the mechanical seal to further block the leakage of ammonia, thereby effectively preventing the leakage of ammonia.

[0035] In this embodiment, when leakage occurs at the installation place of the end cover 11 of the synthesis reactor 1 and the connection place between the end cover 11 and the stirring shaft 12 of the synthesis reactor 1 at the same time, the first gas concentration detection device 5 and the second gas concentration detection device 8 can alarm at the same time, and the first pneumatic valve 21 and the second pneumatic valve 31 are opened at the same time, and water will enter the corresponding leakage place from the first pipeline 2 and the second pipeline 3 to absorb ammonia. The first gas concentration detection device 5 and the second gas concentration detection device 8 are respectively arranged at different sealing positions, which can well distinguish the ammonia leakage point and facilitate maintenance; and the gas concentration detection device and the pneumatic valve are interlocked and controlled. When the gas concentration detection device issues an alarm, the pneumatic valve will open to dilute and dissolve the leakage place, which can effectively reduce the leakage of ammonia.

[0036] In some embodiments, the first sealing position and the second sealing position are respectively provided with water outlets; the water replenishment device also includes a liquid collecting tank 10, and the liquid collecting tank 10 is connected to the water outlets of the first sealing position and the second sealing position respectively through a liquid collecting pipe 101. Preferably, in this embodiment, the wastewater generated by the first sealing position and the second sealing position will flow into the sealing cover 14 through the water outlet, and the liquid collecting pipe 101 is connected to the sealing cover 14; thereby, the wastewater collected in the sealing cover 14 can be sent to the liquid collecting tank 10 for collection through the liquid collecting pipe 101, so as to facilitate subsequent recycling.

[0037] In one example, in order to allow the wastewater that absorbs ammonia to be recycled, the water replenishment device further includes a purification device 102, which is located at the water inlet end of the liquid collecting tank 10 and / or the water outlet end of the liquid collecting pipe 101, and is used to purify the ammonia water flowing down from the liquid collecting pipe 101. Preferably, the purification device 102 includes an activated carbon layer, which is arranged at the upper part of the liquid collecting tank 10 and divides the liquid collecting tank 10 into a wastewater area and a purification area, the wastewater area is connected to the water outlet end of the liquid collecting pipe 101, the purification area is used to store deammoniation water, and a deammoniation water outlet is provided at the purification area. Thus, the wastewater that has absorbed ammonia flows into the wastewater area of ​​the liquid collecting box 10 through the collecting pipe 101. The wastewater is adsorbed and removed by the activated carbon layer to generate deammonium water, which is stored in the purification area. Because ammonia water is alkaline, the present application also dopes acidic substances in the activated carbon layer so that the ammonia water can be absorbed to ensure that the deammonium water entering the purification area meets the requirements. The acidic substances can be low-concentration hydrochloric acid, acetic acid, etc.

[0038] In one example, the outlet of deammonium water and the water inlet of the water supply tank 4 are also connected through a circulation pipe 103, and a circulation pump 1031 is provided on the circulation pipe 103. The circulation pump 1031 is used to pump the deammonium water into the water supply tank 4 for circulation. The liquid collecting tank 10 is also provided with a first liquid level gauge 104, and the water supply tank 4 is provided with a second liquid level gauge 41. The first liquid level gauge 104, the second liquid level gauge 41 and the circulation pump 1031 are interlocked through the PLC control cabinet 7; when the second liquid level gauge 41 detects that the water supply tank 4 is at a low liquid level, and the first liquid level gauge 104 detects that the liquid collecting tank 10 is at a high liquid level, the circulation pump 1031 starts to replenish water into the water supply tank 4; when the second liquid level gauge 41 detects that the water supply tank 4 is at a high liquid level, and the first liquid level gauge 104 detects that the liquid collecting tank 10 is at a low liquid level, the circulation pump 1031 stops replenishing water. Since the ammonia gas is fully absorbed by the water in the water seal when leaking, and the ammonia water is adsorbed by the purification device 102 when flowing back to the liquid collection tank 10, the water can also be recycled.

[0039] A second aspect of the present application provides a synthesis reactor 1, the mechanical seal of which is connected to the aforementioned water replenishment device for reducing ammonia leakage of the synthesis reactor 1, the mechanical seal specifically refers to a first sealing position located at the installation position of the end cover 11 of the synthesis reactor 1, and a second sealing position located at the connection between the end cover 11 and the stirring shaft 12 of the synthesis reactor 1.

[0040] The implementation principle of this embodiment is as follows: when salt, alkali and ammonia are mixed in a certain ratio, in the next process, salt, alkali and ammonia are metered and synthesized in the synthesis reactor 1. During the mixing process, the stirring shaft 12 is continuously rubbed against the connection between the end cover 11 and the first sealing position during the rotation process, thereby causing ammonia leakage at the sealing position. When ammonia leaks, the second ammonia extraction pipeline 9 will absorb the leaked ammonia into the second gas concentration detection device 8. When the second gas concentration detection device 8 detects that the ammonia concentration has increased, it will send data to the PLC control cabinet 7. The PLC control cabinet 7 controls the alarm module attached to the second gas concentration detection device 8 to alarm. Since the second gas concentration detection device 8 is interlocked with the second pneumatic valve 31 on the second pipeline 3 Therefore, when the second pneumatic valve 31 is opened, water will enter the leaking part from the water supply tank 4 along the second pipeline 3 to absorb and dissolve the ammonia; similarly, when a leak occurs at the installation place of the end cover 11 and the synthesis reactor 1, that is, the second sealing position, the first ammonia extraction pipeline 6 will absorb the leaked ammonia to the first gas concentration detection device 5. When the first gas concentration detection device 5 detects an increase in ammonia concentration, it will send data to the PLC control cabinet 7. The PLC control cabinet 7 controls the alarm module attached to the first gas concentration detection device 5 to alarm. Since the first gas concentration detection device 5 is interlocked with the first pneumatic valve 21 on the first pipeline 2, when the first pneumatic valve 21 is opened, water will enter the leaking part from the water supply tank 4 along the first pipeline 2 to absorb and dissolve the ammonia.

[0041] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A water replenishing device for reducing ammonia leakage in a synthesis reactor, characterized in that: The water replenishing device is used to be connected to the mechanical seal of the synthesis reactor (1), and the mechanical seal includes a first sealing position located at the installation position of the end cover (11) of the synthesis reactor (1), and a second sealing position located at the connection between the end cover (11) and the stirring shaft (12) of the synthesis reactor (1); The water replenishment device comprises a water replenishment tank (4) and a first pipe (2) and a second pipe (3) installed at a water outlet end of the water replenishment tank (4), wherein the water outlet end of the first pipe (2) is configured to be connected to the first sealing position, and the water outlet end of the second pipe (3) is configured to be connected to the second sealing position.

2. The water replenishing device for reducing ammonia leakage in a synthesis reactor according to claim 1, characterized in that: The water replenishment device also includes a first gas concentration detection device (5), a first pneumatic valve (21) and a PLC control cabinet (7); The first gas concentration detection device (5) is provided with a first ammonia extraction pipeline (6), and the free end of the first ammonia extraction pipeline (6) is at least configured to be arranged above the first sealing position; The first pneumatic valve (21) is arranged on the first pipeline (2); The PLC control cabinet (7) is used to interlock the first pneumatic valve (21) and the first gas concentration detection device (5), and to control the opening of the first pneumatic valve (21) according to the detection signal of the first gas concentration detection device (5).

3. The water replenishing device for reducing ammonia leakage of a synthesis reactor according to claim 2, characterized in that: The water replenishing device further comprises a second gas concentration detection device (8) and a second pneumatic valve (31); The second gas concentration detection device (8) is provided with a second ammonia extraction pipeline (9), and the free end of the second ammonia extraction pipeline (9) is at least configured to be arranged above the second sealing position; The second pneumatic valve (31) is arranged on the second pipeline (3) and is interlocked with the second gas concentration detection device (8) through a PLC control cabinet (7); The PLC control cabinet (7) can control the opening of the second pneumatic valve (31) according to the detection signal of the second gas concentration detection device (8).

4. The water replenishing device for reducing ammonia leakage of a synthesis reactor according to claim 3, characterized in that: The first gas concentration detection device (5) and the second gas concentration detection device (8) are both provided with an alarm module. When the concentration of ammonia in the first ammonia extraction pipeline (6) reaches a threshold value, the alarm module in the first gas concentration detection device (5) sounds an alarm, and / or when the concentration of ammonia in the second ammonia extraction pipeline (9) reaches a threshold value, the alarm module in the second gas concentration detection device (8) sounds an alarm.

5. The water replenishing device for reducing ammonia leakage in a synthesis reactor according to any one of claims 1 to 4, characterized in that: The first sealing position and the second sealing position are respectively provided with a water outlet; Wherein, the water replenishment device further comprises a liquid collecting box (10); the liquid collecting box (10) is connected to the water outlets of the first sealing position and the second sealing position respectively through a liquid collecting pipe (101).

6. The water replenishing device for reducing ammonia leakage of a synthesis reactor according to claim 5, characterized in that: The water replenishment device further comprises a purification device (102), wherein the purification device (102) is located at the water inlet end of the liquid collecting tank (10) and / or the water outlet end of the liquid collecting pipe (101), and is used for purifying the ammonia water flowing down from the liquid collecting pipe (101).

7. The water replenishing device for reducing ammonia leakage of a synthesis reactor according to claim 6, characterized in that: The purification device (102) comprises an activated carbon layer, which is arranged on the upper part of the liquid collecting tank (10) and divides the liquid collecting tank (10) into a wastewater area and a purification area, the wastewater area is connected to the water outlet end of the liquid collecting pipe (101), and the purification area is used to store deammonium water, and a deammonium water outlet is provided in the purification area.

8. The water replenishing device for reducing ammonia leakage of a synthesis reactor according to claim 7, characterized in that: A circulation pipe (103) is provided between the deammonium water outlet and the water inlet of the water replenishment tank (4), and a circulation pump (1031) is provided on the circulation pipe (103). The circulation pump (1031) is used to pump the deammonium water into the water replenishment tank (4) for circulation.

9. The water replenishing device for reducing ammonia leakage in a synthesis reactor according to claim 8, characterized in that: The liquid collecting tank (10) is provided with a first liquid level gauge (104), and the water replenishing tank (4) is provided with a second liquid level gauge (41); The first liquid level meter (104), the second liquid level meter (41) and the circulation pump (1031) are interlocked via a PLC control cabinet (7); When the second liquid level meter (41) detects that the water supply tank (4) is at a low liquid level, and the first liquid level meter (104) detects that the liquid collecting tank (10) is at a high liquid level, the PLC control cabinet (7) controls the circulation pump (1031) to start replenishing water into the water supply tank (4); When the second liquid level meter (41) detects that the water replenishment tank (4) is at a high liquid level, and the first liquid level meter (104) detects that the liquid collecting tank (10) is at a low liquid level, the PLC control cabinet (7) controls the circulation pump (1031) to stop replenishing water.

10. A synthesis reactor, characterized in that: The mechanical seal of the synthesis reactor is connected with a water replenishing device for reducing ammonia leakage of the synthesis reactor as described in any one of claims 1 to 9.

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