A device for stabilizing the gas pressure of a reaction system

Abstract

The utility model relates to a chemical equipment technical field, concretely relates to a device of stable reaction system gas pressure, include: reaction container, have reaction cavity, partial pressure container, have partial pressure cavity, the partial pressure cavity passes through first pipeline with reaction cavity intercommunication, liquid storage container, have liquid storage cavity, the liquid storage cavity passes through second pipeline with partial pressure cavity intercommunication, negative pressure air suction pipeline, one end with liquid storage cavity intercommunication, other end places in liquid storage cavity outside, wherein, the liquid storage cavity contains the sealed liquid, one end of second pipeline places in the liquid level below of sealed liquid. The present application has realized the stable gas pressure environment, makes the material reaction in reaction container more stable, and further guarantees the stability of whole reaction process. The present application can realize automatic exhaust according to the pressure change in reaction container, and the degree of automation is high, saves manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a device for stabilizing the gas pressure of a reaction system. Background Technology

[0002] With the rapid development of the lithium-ion battery ternary cathode material industry, ternary precursors, as its core raw material, have also seen rapid expansion in industry scale. In the production process of ternary precursors, the synthesis process is the key link that determines the performance and quality of the product, and the reaction vessel (such as a reactor) is the core equipment in the synthesis process. Its operational stability is directly related to whether qualified ternary precursor products can be produced, and has an important impact on the company's production efficiency and market competitiveness.

[0003] In existing ternary precursor production processes, the exhaust gas from the reactor is typically treated in a crude manner, using the suction power and air pressure of a fan to directly draw the exhaust gas through ducts to a exhaust gas recovery system for treatment. However, this direct extraction method has several adverse process effects for the refined production of ternary precursors, as follows:

[0004] First, direct extraction will lead to a significant increase in nitrogen consumption. Due to the negative pressure generated by the fan, a large amount of nitrogen needs to be continuously introduced into the reactor to maintain a positive pressure environment. If the nitrogen input is insufficient, outside air is easily drawn back into the reactor due to the negative pressure, which will cause material oxidation and affect product quality.

[0005] Second, direct extraction will accelerate the volatilization of ammonia in the reaction system. As an important component in the synthesis reaction of ternary precursors, the sudden increase in the volatilization rate of ammonia will cause large fluctuations in the flow balance of the entire reaction system, destroy the stability of the reaction in the reactor, and make it difficult to control key indicators such as particle size distribution and morphology of the product.

[0006] Third, direct extraction will significantly increase exhaust emissions, which will directly lead to an increase in the processing load of the exhaust gas recovery system, resulting in a significant increase in energy consumption, which is not conducive to enterprises achieving their energy-saving and consumption-reducing production goals.

[0007] Fourth, during the reaction process, the direct extraction method cannot effectively monitor and provide feedback on pressure changes in the reaction system, making it difficult to determine if there is any leakage. Once a leak occurs, it will not only affect the normal progress of the reaction but may also cause safety hazards.

[0008] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0009] The purpose of this invention is to provide a device for stabilizing the gas pressure of a reaction system.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A device for stabilizing the gas pressure of a reaction system, comprising:

[0012] A reaction vessel, having a reaction chamber;

[0013] A pressure-distributing container has a pressure-distributing chamber, which is connected to the reaction chamber via a first pipe;

[0014] A liquid storage container having a liquid storage chamber, the liquid storage chamber being connected to the pressure dividing chamber via a second pipe;

[0015] A negative pressure suction pipe, one end of which is connected to the liquid storage chamber, and the other end of which is placed outside the liquid storage chamber;

[0016] The liquid storage chamber contains a sealing liquid, and one end of the second pipe is positioned below the surface of the sealing liquid.

[0017] In one specific embodiment of the reaction process, the negative pressure suction pipe can be connected to the tail gas recovery system. The reaction vessel (which can be a reaction kettle) and the partial pressure vessel (the specific type is not limited, as long as it meets the purpose) maintain a positive nitrogen pressure. The reaction vessel, the partial pressure vessel, and the liquid storage vessel (which can be a cubic structure) are connected to the second pipe through the first pipe, so that the tail gas in the reaction vessel is discharged into the liquid storage chamber. Then, some components in the tail gas (such as ammonia) are absorbed by the sealed liquid (which can be pure water) in the liquid storage chamber, and the unabsorbed tail gas is collected in the top space of the liquid storage chamber. Since the fan of the tail gas recovery system has suction power, the unabsorbed tail gas is drawn into the tail gas recovery system for treatment through the negative pressure suction pipe, thereby realizing the effective recovery of the tail gas in the reaction vessel.

[0018] The liquid reservoir with a sealing liquid plays a crucial role in maintaining stable gas pressure in the reaction system. The principle is that the liquid within the reservoir forms a pressure buffer zone. When the gas pressure inside the reaction vessel fluctuates due to the reaction, or when the suction force of the exhaust gas recovery system's fan changes, the sealing liquid can balance the pressure through its own flow and level changes.

[0019] To illustrate this with an example, pressure stabilizing tanks are commonly used in industrial production. The gas and liquid within the pressure stabilizing tank work together to effectively mitigate pressure fluctuations in pipelines, ensuring system pressure stability. The sealed liquid in the storage chamber is similar to the medium in the pressure stabilizing tank. When the gas pressure inside the reaction vessel increases, the excess gas pushes the sealed liquid, compressing the gas space at the top of the storage chamber and thus buffering the pressure rise. When the gas pressure inside the reaction vessel decreases, the gas at the top of the storage chamber expands, pushing the sealed liquid back to replenish the pressure, preventing sudden increases and decreases in gas pressure within the reaction vessel. Through the dynamic balance of the sealed liquid, the storage chamber transforms the suction effect of the exhaust gas recovery system into a gradual pressure change, rather than directly affecting the reaction vessel. This establishes a pressure buffer zone between the reaction vessel and the exhaust gas recovery system, achieving pressure stability for the entire reaction system.

[0020] A pressure-sharing container is installed between the reaction vessel and the storage vessel to further buffer the pressure pulse of the exhaust gas discharged from the reaction vessel. This prevents the instantaneous high-pressure gas flow from directly impacting the sealing liquid in the storage chamber, which could cause drastic fluctuations in the liquid level. Simultaneously, it provides initial flow stabilization for the exhaust gas, resulting in a more stable flow rate into the storage chamber. This reduces interference from unstable airflow on the sealing liquid's effectiveness and pressure buffering, thereby enhancing the overall system's pressure stability and reliability. This is particularly suitable for scenarios where pressure fluctuations within the reaction vessel are frequent. The liquid in the pressure-sharing container is the same as the liquid in the reaction vessel.

[0021] In summary, this embodiment achieves a stable gas pressure environment, resulting in a more stable material reaction within the reaction vessel and thus ensuring the stability of the entire reaction process. This embodiment can automatically vent gas based on pressure changes within the reaction vessel, achieving a high degree of automation and saving labor costs. Compared to the direct extraction method in the prior art, the device in this embodiment can be used for refined ternary precursor production, avoiding the process interferences seen in the prior art.

[0022] In a further technical solution, the first pipe, the second pipe, and the negative pressure suction pipe all have at least one bend. These bends can flexibly adjust the pipe routing, making the path of the exhaust gas from the reaction vessel to the exhaust gas recovery equipment more reasonable, and reducing the total length of the pipes or unnecessary detours.

[0023] During the reaction operation, there may be a sudden increase in tail gas pressure (such as violent reaction or feed fluctuation). The bend section can buffer the pressure impact by changing the airflow speed (the flow rate first decreases and then increases at the bend), so as to avoid damage to subsequent pipelines or equipment due to instantaneous high pressure.

[0024] A further technical solution involves installing at least one first control valve on each of the first pipe, the second pipe, and the negative pressure suction pipe. The core function of the control valve is to regulate the flow and pressure of the exhaust gas, ensuring the operational stability and safety of the device in this embodiment. For example, if the pressure inside the reaction vessel suddenly increases, the control valve can quickly close its opening to limit the exhaust gas emission rate, preventing the pipe from rupturing due to instantaneous high pressure.

[0025] A further technical solution is that the bottom end of the liquid storage container is provided with a drain port, and a second control valve is provided at the drain port;

[0026] The liquid storage container is provided with a tray below it, and there is a gap between the drain port and the tray;

[0027] The edge of the tray is bent upward to form a limiting part, and the tray is provided with a water outlet hole, and a third control valve is provided at the water outlet hole;

[0028] The limiting part is inclined toward the liquid storage container.

[0029] During drainage, the liquid in the storage container is discharged through the drain port to the inside of the tray, and finally discharged to the recovery device through the water outlet. During this process, the tray, under the limiting action of the limiting part, plays a role in preventing liquid splashing and improving the liquid recovery rate.

[0030] The limiting part is tilted towards the liquid storage container to further improve the effect of preventing liquid splashing and leakage.

[0031] A further technical solution is that the bottom of the tray is equipped with multiple feet, which raise the water outlet, making it easier for the liquid in the storage container to be discharged to the recycling device through the water outlet.

[0032] A further technical solution is that, in the vertical direction, the projection of each of the foot feet on the bottom surface of the pallet is close to the edge of the bottom surface of the pallet, so as to improve the stability of the pallet after it is raised.

[0033] A further technical solution involves placing the water outlet at the edge of the tray to facilitate the final discharge of liquid from the storage container to the recycling device. If the water outlet is located in the center of the tray and the liquid needs to be directly recycled using the recycling device, the recycling device must be placed directly below the tray. In this case, the feet of the device will interfere with the recycling device. Placing the water outlet at the edge of the tray avoids this problem.

[0034] Preferably, the bottom surface of the inner side of the tray is inclined to one side, and the opening of the water outlet is located at the lower end of the bottom surface of the inner side of the tray.

[0035] In a further technical solution, the top of the liquid storage container is provided with an operation port (not shown in the figure), the operation port is provided with a cover plate, the cover plate is connected to the liquid storage container by a threaded structure, and an annular sealing gasket is provided between the cover plate and the liquid storage container.

[0036] The operating port facilitates the filling and cleaning of the liquid storage container. Normally, a cover is fitted over the operating port to prevent exposure. The cover is secured using a threaded structure, making installation and removal easy. Simultaneously, a ring-shaped sealing gasket, in conjunction with the cover, seals the operating port, preventing exhaust gases from escaping through the gap between the cover and the operating port.

[0037] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0038] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0039] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0040] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0041] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0042] The working principle and advantages of this utility model are as follows:

[0043] In one specific embodiment of the reaction process, a negative pressure suction pipe is connected to a tail gas recovery system. The reaction vessel and the partial pressure vessel maintain a positive nitrogen pressure. The reaction vessel, the partial pressure vessel, and the liquid storage vessel are connected to a second pipe through a first pipe, allowing the tail gas in the reaction vessel to be discharged into the liquid storage chamber. Then, some components in the tail gas (such as ammonia) are absorbed by the sealed liquid in the liquid storage chamber, while the unabsorbed tail gas accumulates in the top space of the liquid storage chamber. Because the fan of the tail gas recovery system has suction power, the unabsorbed tail gas is drawn into the tail gas recovery system for treatment through the negative pressure suction pipe, thereby achieving effective recovery of the tail gas in the reaction vessel.

[0044] The liquid reservoir with a sealing liquid plays a crucial role in maintaining stable gas pressure in the reaction system. The principle is that the liquid within the reservoir forms a pressure buffer zone. When the gas pressure inside the reaction vessel fluctuates due to the reaction, or when the suction force of the exhaust gas recovery system's fan changes, the sealing liquid can balance the pressure through its own flow and level changes.

[0045] The sealed liquid in the storage chamber is similar to the medium in existing pressure stabilizing tanks. When the gas pressure inside the reaction vessel increases, the excess gas pushes the sealed liquid, compressing the gas space at the top of the storage chamber and thus buffering the pressure rise. When the gas pressure inside the reaction vessel decreases, the gas at the top of the storage chamber expands, pushing the sealed liquid back to replenish the pressure, preventing sudden increases and decreases in gas pressure inside the reaction vessel. Through the dynamic balance of the sealed liquid, the storage chamber transforms the suction effect of the tail gas recovery system into a gradual pressure change, rather than directly acting on the reaction vessel, thereby establishing a pressure buffer zone between the reaction vessel and the tail gas recovery system, achieving gas pressure stability for the entire reaction system.

[0046] A pressure-sharing container is installed between the reaction vessel and the storage vessel to further buffer the pressure pulse of the exhaust gas discharged from the reaction vessel. This prevents the instantaneous high-pressure airflow from directly impacting the sealing liquid in the storage chamber, which could cause drastic fluctuations in the liquid level. At the same time, it can initially stabilize the exhaust gas flow, making the exhaust gas flow into the storage chamber more stable. This reduces the interference of unstable airflow on the sealing liquid's sealing effect and pressure buffering effect, thereby enhancing the reliability of the entire system's pressure stability. It is especially suitable for scenarios where pressure fluctuations within the reaction vessel are frequent.

[0047] In summary, this application achieves a stable gas pressure environment, resulting in a more stable material reaction within the reaction vessel and thus ensuring the stability of the entire reaction process. This application can automatically vent gas based on pressure changes within the reaction vessel, achieving a high degree of automation and saving labor costs. Compared to the direct extraction method in the prior art, the device in this application can be used for refined ternary precursor production, avoiding the process interferences present in the prior art. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of the device for stabilizing the gas pressure of the reaction system according to an embodiment of the present invention.

[0049] Figure 2 This is one of the partial structural schematic diagrams of the device for stabilizing the gas pressure of the reaction system according to an embodiment of this utility model;

[0050] Figure 3 This is a second partial structural schematic diagram of the device for stabilizing the gas pressure of the reaction system according to an embodiment of this utility model.

[0051] In the above attached diagrams: 1. Reaction vessel; 11. Reaction chamber; 2. Pressure dividing vessel; 21. Pressure dividing chamber; 3. First pipe; 4. Liquid storage container; 41. Liquid storage chamber; 42. Drain outlet; 5. Second pipe; 6. Negative pressure suction pipe; 7. Bend section; 8. First control valve; 9. Second control valve; 10. Tray; 101. Limiting part; 102. Water outlet; 100. Third control valve; 200. Foot; 300. Cover plate; 400. Threaded structure; 500. Annular sealing gasket. Detailed Implementation

[0052] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0053] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0054] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0055] See Figures 1-3 A device for stabilizing the gas pressure of a reaction system, comprising:

[0056] Reaction vessel 1 has a reaction chamber 11;

[0057] The pressure-distributing container 2 has a pressure-distributing chamber 21, which is connected to the reaction chamber 11 through a first pipe 3;

[0058] The liquid storage container 4 has a liquid storage chamber 41, which is connected to the pressure dividing chamber 21 through the second pipe 5;

[0059] The negative pressure suction pipe 6 is connected at one end to the liquid storage chamber 41 and at the other end to the outside of the liquid storage chamber 41.

[0060] The liquid storage chamber 41 contains a sealing liquid, and one end of the second pipe 5 is positioned below the surface of the sealing liquid.

[0061] In one specific embodiment of the reaction process, the negative pressure suction pipe 6 can be connected to the tail gas recovery system. The reaction vessel 1 (which can be a reaction kettle) and the partial pressure vessel 2 (the specific type is not limited, as long as it meets the purpose) maintain a positive pressure of nitrogen. The reaction vessel 1, the partial pressure vessel 2, and the liquid storage vessel 4 (which can be a cubic structure) are connected to the second pipe 5 through the first pipe 3, so that the tail gas in the reaction vessel 1 is discharged into the liquid storage chamber 41. Then, some components in the tail gas (such as ammonia) will be absorbed by the sealed liquid (which can be pure water) in the liquid storage chamber 41, and the unabsorbed tail gas will accumulate in the top space of the liquid storage chamber 41. Since the fan of the tail gas recovery system has suction force, the unabsorbed tail gas will be drawn into the tail gas recovery system for treatment through the negative pressure suction pipe 6, thereby realizing the effective recovery of the tail gas in the reaction vessel 1.

[0062] The liquid storage chamber 41 with sealed liquid plays a crucial role in maintaining stable gas pressure in the reaction system. The principle is that the liquid in the liquid storage chamber 41 can form a pressure buffer zone. When the gas pressure in the reaction vessel 1 fluctuates due to the reaction, or when the suction force of the fan in the tail gas recovery system changes, the sealed liquid can balance the pressure through its own flow and liquid level changes.

[0063] To illustrate this point, pressure stabilizing tanks are commonly used in industrial production. The gas and liquid within the pressure stabilizing tank work together to effectively mitigate pressure fluctuations in the pipeline, ensuring system pressure stability. The sealed liquid in the storage chamber 41 is similar to the medium in the pressure stabilizing tank. When the gas pressure inside the reaction vessel 1 increases, the excess gas pushes the sealed liquid, compressing the gas space at the top of the storage chamber 41, thus buffering the pressure rise. When the gas pressure inside the reaction vessel 1 decreases, the gas at the top of the storage chamber 41 expands, pushing the sealed liquid back to replenish the pressure, preventing sudden increases and decreases in gas pressure within the reaction vessel 1. Through the dynamic balance of the sealed liquid, the storage chamber 41 transforms the suction effect of the tail gas recovery system into a gradual pressure change, rather than directly acting on the reaction vessel 1. This establishes a pressure buffer zone between the reaction vessel 1 and the tail gas recovery system, achieving pressure stability for the entire reaction system.

[0064] A pressure-splitting container 2 is installed between the reaction vessel 1 and the storage container 4. This further buffers the pressure pulse of the exhaust gas discharged from the reaction vessel 1, preventing the instantaneous high-pressure airflow from directly impacting the sealing liquid in the storage chamber 41 and causing drastic fluctuations in the liquid level. Simultaneously, it provides initial flow stabilization for the exhaust gas, making the flow rate into the storage chamber 41 more stable. This reduces interference from unstable airflow on the sealing effect and pressure buffering function of the sealing liquid, thereby enhancing the reliability of the entire system's pressure stability. This is particularly suitable for scenarios where pressure fluctuations within the reaction vessel 1 are frequent. The liquid in the pressure-splitting container 2 is the same as the liquid in the reaction vessel 1.

[0065] In summary, this embodiment achieves a stable gas pressure environment, resulting in a more stable material reaction within reaction vessel 1 and thus ensuring the stability of the entire reaction process. This embodiment can automatically vent gas based on pressure changes within reaction vessel 1, achieving a high degree of automation and saving labor costs. Compared to the direct extraction method in the prior art, the device in this embodiment can be used for refined ternary precursor production, avoiding the process influences seen in the prior art.

[0066] In some embodiments, the liquid storage container 4 is made of acrylic material, which allows for real-time observation and timely and effective handling of sudden changes in the reaction system, avoiding waste of raw materials due to reaction failure.

[0067] See Figure 1 In this embodiment, the first pipe 3, the second pipe 5 and the negative pressure suction pipe 6 all have at least one bend 7. These bends 7 can flexibly adjust the pipe direction, making the path of the exhaust gas from the reaction vessel 1 to the exhaust gas recovery device more reasonable, reducing the total length of the pipe or unnecessary detours.

[0068] During the reaction operation, there may be a sudden increase in tail gas pressure (such as violent reaction or feed fluctuation). The bend section 7 can buffer the pressure impact by changing the airflow speed (the flow rate first decreases and then increases at the bend), so as to avoid damage to subsequent pipelines or equipment due to instantaneous high pressure.

[0069] The specific number and location of the 7-bend segment are not limited; please refer to [the relevant documentation]. Figure 1 .

[0070] See Figure 1 In this embodiment, at least one first control valve 8 is installed on the first pipe 3, the second pipe 5, and the negative pressure suction pipe 6. The core function of the control valve is to regulate the flow and pressure of the exhaust gas, ensuring the operational stability and safety of the device in this embodiment. For example, if the pressure inside the reaction vessel 1 suddenly increases, the control valve can quickly close its opening to limit the exhaust gas emission rate and prevent the pipe from rupturing due to instantaneous high pressure.

[0071] Each control valve is preferably installed on a straight section of the corresponding pipeline, as can be referred to. Figure 1 In this embodiment, the specific type of control valve is not limited, as long as it meets the requirements; for example, a ball valve can be used.

[0072] See Figure 2 In this embodiment, the bottom end of the liquid storage container 4 is provided with a drain port 42, and a second control valve 9 is provided at the drain port 42;

[0073] The liquid storage container 4 is provided with a tray 10 below it, and there is a gap between the drain port 42 and the tray 10;

[0074] The edge of the tray 10 is bent upward to form a limiting part 101. The tray 10 is provided with a water outlet 102 and a third control valve 100 is provided at the water outlet 102.

[0075] The limiting part 101 is inclined toward the liquid storage container 4.

[0076] During drainage, the liquid in the storage container 4 is discharged through the drain port 42 to the inside of the tray 10, and finally discharged to the recovery device through the water outlet 102. During this process, under the limiting action of the limiting part 101, the tray 10 plays a role in preventing liquid splashing and improving the liquid recovery rate.

[0077] The limiting part 101 is tilted toward the liquid storage container 4 to further improve the effect of preventing liquid splashing and leakage.

[0078] See Figure 2 In this embodiment, the bottom of the tray 10 is equipped with multiple feet 200, which raise the water outlet 102 so that the liquid in the storage container 4 can be discharged to the recycling device through the water outlet 102.

[0079] See Figure 3 In this embodiment, in the vertical direction, the projection of each foot 200 on the bottom surface of the tray 10 is close to the edge of the bottom surface of the tray 10 to improve the stability of the tray 10 after it is raised.

[0080] See Figure 2 In this embodiment, the water outlet 102 is located at the edge of the tray 10 to further facilitate the final discharge of liquid in the storage container 4 to the recycling device through the water outlet 102. If the water outlet 102 is located in the middle of the tray 10 and the liquid needs to be directly recycled using the recycling device, the recycling device needs to be placed directly below the tray 10. In this case, the foot 200 will interfere with the recycling device. Placing the water outlet 102 at the edge of the tray 10 can avoid this problem.

[0081] Preferably, the inner bottom surface of the tray 10 is inclined to one side, and the opening of the water outlet 102 is located at the lower end of the inner bottom surface of the tray 10.

[0082] See Figure 3 In this embodiment, the top of the liquid storage container 4 is provided with an operation port (not shown in the figure), and a cover plate 300 is provided at the operation port. The cover plate 300 is connected to the liquid storage container 4 through a threaded structure 400, and an annular sealing gasket 500 is provided between the cover plate 300 and the liquid storage container 4.

[0083] The operating port facilitates the filling and cleaning of the liquid storage container 4. Normally, the cover plate 300 is fitted over the operating port to prevent exposure. The cover plate 300 is secured using a threaded structure 400, making installation and removal convenient. Simultaneously, an annular sealing gasket 500, in conjunction with the cover plate 300, seals the operating port, preventing exhaust gases from the liquid storage container 4 from escaping through the gap between the cover plate 300 and the operating port.

[0084] The threaded structure 400 can be configured as a wing screw. The annular sealing gasket 500 can be configured as a silicone sealing gasket.

[0085] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for stabilizing the gas pressure of a reaction system, characterized in that: include: The reaction vessel (1) has a reaction chamber (11); The pressure-distributing container (2) has a pressure-distributing chamber (21), which is connected to the reaction chamber (11) through a first pipe (3); The liquid storage container (4) has a liquid storage chamber (41), which is connected to the pressure dividing chamber (21) through a second pipe (5); The negative pressure suction pipe (6) is connected at one end to the liquid storage chamber (41) and at the other end to the outside of the liquid storage chamber (41); The liquid storage chamber (41) contains a sealing liquid, and one end of the second pipe (5) is placed below the liquid surface of the sealing liquid.

2. The device for stabilizing the gas pressure of a reaction system according to claim 1, characterized in that: The first pipe (3), the second pipe (5) and the negative pressure suction pipe (6) all have at least one bend (7).

3. The device for stabilizing the gas pressure of a reaction system according to claim 1, characterized in that: At least one first control valve (8) is installed on the first pipe (3), the second pipe (5) and the negative pressure suction pipe (6).

4. The device for stabilizing the gas pressure of a reaction system according to claim 1, characterized in that: The bottom end of the liquid storage container (4) is provided with a drain port (42), and a second control valve (9) is provided at the drain port (42). The storage container (4) is provided with a tray (10) below it, and there is a gap between the drain port (42) and the tray (10); The edge of the tray (10) is bent upward to form a limiting part (101). The tray (10) is provided with a water outlet (102). A third control valve (100) is provided at the water outlet (102). The limiting part (101) is inclined toward the liquid storage container (4).

5. The device for stabilizing the gas pressure of a reaction system according to claim 4, characterized in that: The bottom of the tray (10) is fitted with multiple feet (200).

6. The device for stabilizing the gas pressure of a reaction system according to claim 5, characterized in that: In the vertical direction, the projection of each foot (200) on the bottom surface of the tray (10) is close to the edge of the bottom surface of the tray (10).

7. The device for stabilizing the gas pressure of a reaction system according to claim 5, characterized in that: The water outlet (102) is located at the edge of the tray (10).

8. A device for stabilizing the gas pressure of a reaction system according to any one of claims 1-7, characterized in that: The top of the liquid storage container (4) is provided with an operation port, and a cover plate (300) is provided at the operation port. The cover plate (300) is connected to the liquid storage container (4) through a threaded structure (400), and an annular sealing gasket (500) is provided between the cover plate (300) and the liquid storage container (4).

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