Nitromethane demulsification water segregator

Abstract

The utility model relates to a nitromethane demulsification water segregator which comprises a first water segregation tank, a second water segregation tank and a third water segregation tank, and the first water segregation tank is communicated with a first water outlet pipeline and a first discharging pipeline; the input end of the conveying pump is communicated with the first discharging pipeline, and the output end of the conveying pump is communicated with the input end of a demulsifier; the input end of the second water separation tank is communicated with the output end of the emulsion breaker, and the second water separation tank is communicated with a second water outlet pipeline and a second discharging pipeline. Through the design of the two stages of water separation tanks, namely, the first water separation tank is used for primary separation, the second water separation tank is used for deep separation, and the demulsification effect of the demulsifier is combined, so that the separation efficiency of nitromethane and water can be remarkably improved. And the demulsifier is used, so that water and impurities in nitromethane can be removed, and the purity and the quality of the product are improved. The water content of nitromethane treated by the demulsifier is greatly reduced, so that the burden of subsequent rectification and other treatment processes is reduced, and the energy consumption and the cost are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of chemical separation, in particular to a nitromethane demulsification water separator. BACKGROUND

[0002] Nitromethane is an important organic compound with a wide range of applications and specific physical and chemical properties. It is a colorless oily liquid, slightly soluble in water, but soluble in ethanol, diethyl ether and dimethylformamide. Nitromethane plays an important role in organic synthesis and can be used to synthesize pesticides, explosives, rocket fuel, medicines, dyes, insecticides and gasoline additives. At the same time, it is also an effective organic solvent. Nitromethane is difficult to dissolve in water, but it can be mixed with many organic solvents. Its aqueous solution is acidic and can generate salt when reacting with alkali. In addition, nitromethane also has specific chemical reactivity, such as nucleophilic addition reaction with aldehydes and reduction reaction. The characteristics and applications of nitromethane make it an important position in the chemical industry, but at the same time, its safety and potential impact on health need to be concerned.

[0003] In the related art, after the reactants enter the distillation kettle, they are treated by gasification and condensation to obtain a nitromethane crude product containing a large amount of water. The separation efficiency of water in the crude nitromethane is low, which leads to the consumption of a large amount of steam in the subsequent rectification process, the product quality is affected, and the energy consumption cost is increased. SUMMARY

[0004] The application provides a nitromethane demulsification water separator, which can solve the technical problems of low water separation efficiency in the crude nitromethane, affecting the product quality, and increasing the energy consumption cost.

[0005] The application provides a nitromethane demulsification water separator, which can solve the technical problems of low water separation efficiency in the crude nitromethane, affecting the product quality, and increasing the energy consumption cost.

[0006] The first water separation tank is communicated with a first water outlet pipeline and a first discharge pipeline;

[0007] The conveying pump is communicated with the input end of the demulsifier.

[0008] The second water separation tank is communicated with a second water outlet pipeline and a second discharge pipeline.

[0009] In one embodiment, the demulsifier comprises:

[0010] The tank body is provided with a nitrogen charging inlet and an impurity outlet.

[0011] A first demulsification and oil removal membrane filter is installed inside the tank body, with its input end communicating with the output end of the delivery pump through a first delivery pipeline;

[0012] A second demulsification and oil removal membrane filter is installed inside the tank body, with its output end communicating with the input end of the second water separation tank through a second delivery pipeline.

[0013] In an embodiment, the first water separation tank is installed with a first density liquid level meter;

[0014] The first water outlet pipeline is installed with a first water outlet solenoid valve, and the first discharge pipeline is installed with a first discharge solenoid valve;

[0015] The nitromethane demulsification water separator further comprises:

[0016] A controller is electrically connected with the first density liquid level meter, the first water outlet solenoid valve, and the first discharge solenoid valve.

[0017] In an embodiment, the nitromethane demulsification water separator further comprises:

[0018] A first display screen is electrically connected with the controller, and is used to display the density value monitored by the first density liquid level meter, and the valve states of the first water outlet solenoid valve and the first discharge solenoid valve.

[0019] In an embodiment, the nitromethane demulsification water separator further comprises:

[0020] A first water return tank has its input end communicating with the first water outlet pipeline.

[0021] In an embodiment, the second water separation tank is installed with a second density liquid level meter;

[0022] The second water outlet pipeline is installed with a second water outlet solenoid valve, and the second discharge pipeline is installed with a second discharge solenoid valve;

[0023] The controller communicates with the second density liquid level meter, the second water outlet solenoid valve, and the second discharge solenoid valve.

[0024] In an embodiment, the nitromethane demulsification water separator further comprises:

[0025] A second display screen is electrically connected with the controller, and is used to display the density value monitored by the second density liquid level meter, and the valve states of the second water outlet solenoid valve and the second discharge solenoid valve.

[0026] In an embodiment, the nitromethane demulsification water trap further comprises:

[0027] A second backwater tank, an input end of the second backwater tank being in communication with the second water outlet pipeline.

[0028] In an embodiment, the nitromethane demulsification water trap further comprises:

[0029] A condenser, an output end of the condenser being in communication with an input end of the first water trap.

[0030] In an embodiment, the nitromethane demulsification water trap further comprises:

[0031] A distillation kettle, an output end of the distillation kettle being in communication with an input end of the condenser.

[0032] The technical scheme provided by the embodiments has the beneficial effects including:

[0033] (1) Through the design of two-stage water traps, i.e., the first water trap for preliminary separation and the second water trap for deep separation, combined with the demulsification effect of the demulsifier, the separation efficiency of nitromethane and water can be significantly improved. Since the water trap can effectively separate water from nitromethane, the water content in the subsequent rectification process is reduced, thereby reducing the amount of steam required in the rectification process and saving energy costs. Through accurate separation and demulsification treatment, the purity of nitromethane can be ensured, and the quality of the final product can be improved to meet the strict requirements of various application fields for the purity of nitromethane.

[0034] (2) The demulsifier can effectively destroy the emulsification state between nitromethane and water, reduce the stability of the emulsion, and separate the originally closely combined water molecules and nitromethane molecules. Through the treatment of the demulsifier, the separation of nitromethane and water becomes easier and more efficient. The demulsifier can quickly penetrate the emulsion layer, reduce the interfacial tension, and promote the aggregation and sedimentation of water droplets, thereby accelerating the separation speed. The use of the demulsifier helps to remove water and impurities in nitromethane, improving the purity and quality of the product. After treatment by the demulsifier, the water content of nitromethane is greatly reduced, which reduces the burden of subsequent rectification and other treatment processes, and reduces energy consumption and costs. Stable operation of the demulsifier helps to maintain stable operation of the entire water separation system, reducing the risk of equipment failure and production interruption caused by emulsification. BRIEF DESCRIPTION OF DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a nitromethane demulsifier / water separator.

[0037] In the diagram: 1. First water separator; 11. First water outlet pipe; 12. First material outlet pipe; 13. First density level gauge; 2. Transfer pump; 3. Demulsifier; 31. Tank body; 32. Nitrogen inlet; 33. Impurity outlet; 34. First demulsification and oil removal film filter element; 35. Second demulsification and oil removal film filter element; 4. Second water separator; 41. Second water outlet pipe; 42. Second material outlet pipe; 43. Second density level gauge; 5. Condenser; 6. Distillation kettle. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0039] This application provides a nitromethane demulsifier and water separator, which can solve the technical problem of low water separation efficiency in crude nitromethane, which leads to poor product quality and increased energy consumption costs.

[0040] like Figure 1 As shown in the embodiment of this application, a nitromethane demulsifier includes: a first water distribution tank 1, which is connected to a first water outlet pipe 11 and a first material outlet pipe 12; a conveying pump 2, the input end of which is connected to the first material outlet pipe 12, and the output end of which is connected to the input end of a demulsifier 3; and a second water distribution tank 4, the input end of which is connected to the output end of the demulsifier 3, and the second water distribution tank 4 is connected to a second water outlet pipe 41 and a second material outlet pipe 42.

[0041] In this embodiment, the first water trap 1 serves as the initial water separation stage, mainly used to receive the nitromethane mixture and physically separate part of the water. The first water trap 1 is connected with a first water outlet pipeline 11 for discharging the separated water, and a first discharge pipeline 12 for outputting the preliminarily water-separated nitromethane. The delivery pump 2, with its input end connected with the first discharge pipeline 12, is responsible for delivering the preliminarily water-separated nitromethane to the demulsifier 3. The demulsifier 3 receives the nitromethane from the delivery pump 2 and applies a physical demulsification method to further break the emulsified water in the nitromethane, improving the water separation efficiency. The second water trap 4 serves as the subsequent water separation stage, receiving the nitromethane treated by the demulsifier 3 for final water separation. The second water trap 4 is connected with a second water outlet pipeline 41 for discharging the finally separated water, and a second discharge pipeline 42 for outputting the water-separated pure nitromethane. Through the organic combination of the two-stage water trap (the first water trap 1 and the second water trap 4) and the demulsifier 3, efficient and complete separation of water in the nitromethane is achieved, improving the water separation efficiency. After demulsification treatment and two-stage water separation, the purity of the nitromethane is significantly improved, meeting the strict requirements of subsequent processes or products on the purity of nitromethane. The design of the nitromethane demulsification water separator makes the entire water separation process more smooth and stable, optimizes the process flow, and reduces the operation difficulty and cost. Through the stable delivery of the delivery pump 2 and the effective demulsification of the demulsifier 3, the stability and reliability of the entire water separation system are enhanced, reducing the failure rate and maintenance cost. The nitromethane demulsification water separator realizes efficient separation and treatment of water in nitromethane with its efficient, stable and reliable technical means, providing strong technical support for the production and application of nitromethane.

[0042] Specifically, the two-stage water separation tank design—with the first tank 1 performing initial separation and the second tank 4 performing deep separation—combined with the demulsifier 3, significantly improves the separation efficiency of nitromethane and water. Because the water separation tanks effectively separate water from nitromethane, the water content in subsequent distillation processes is reduced, thereby lowering the steam consumption required and saving energy costs. Precise separation and demulsification ensure the purity of nitromethane, improving the quality of the final product and meeting the stringent purity requirements of various applications. The demulsifier 3 effectively disrupts the emulsion state between nitromethane and water, reducing emulsion stability and allowing the previously tightly bound water and nitromethane molecules to separate. Through the demulsifier 3, the separation of nitromethane and water becomes easier and more efficient. The demulsifier 3 rapidly penetrates the emulsion layer, reducing interfacial tension and promoting water droplet aggregation and sedimentation, thus accelerating the separation speed. The use of demulsifier 3 helps remove moisture and impurities from nitromethane, improving product purity and quality. After treatment by demulsifier 3, the moisture content of the nitromethane is significantly reduced, lessening the burden on subsequent processing steps such as distillation and lowering energy consumption and costs. The stable operation of demulsifier 3 helps maintain the stable operation of the entire water separation system, reducing the risk of equipment failure and production interruptions caused by emulsification.

[0043] In one implementation, such as Figure 1 As shown, the demulsifier 3 includes: a tank 31, which has a nitrogen inlet 32 ​​and an impurity outlet 33; a first demulsification and oil removal membrane filter element 34, which is installed inside the tank 31, and the input end of the first demulsification and oil removal membrane filter element 34 is connected to the output end of the delivery pump 2 via a first delivery pipeline; and a second demulsification and oil removal membrane filter element 35, which is installed inside the tank 31, and the output end of the second demulsification and oil removal membrane filter element 35 is connected to the input end of the second water separator 4 via a second delivery pipeline.

[0044] In this embodiment, the nitrogen inlet 32 ​​on the tank 31 is used to fill the tank with nitrogen gas, which helps create a specific atmosphere and helps prevent the nitromethane from exploding. The impurity outlet 33 is used to discharge impurities or unwanted substances generated during the demulsification process, maintaining the cleanliness of the tank 31 and the efficiency of demulsification. The first demulsification and oil removal membrane filter element 34 is installed inside the tank 31, and its input end is connected to the output end of the delivery pump 2 through a first delivery pipeline. The first demulsification and oil removal membrane filter element 34 plays a preliminary filtration and demulsification role, removing some of the emulsified water and impurities from the nitromethane. The second demulsification and oil removal membrane filter element 35 is also installed inside the tank 31, but its output end is connected to the input end of the second water separator 4 through a second delivery pipeline. The second demulsification and oil removal membrane filter element 35 further refines the filtration and demulsification, ensuring that the nitromethane output to the second water separator 4 has higher purity and lower water content. The use of a two-stage demulsification and oil removal membrane filter (first demulsification and oil removal membrane filter 34 and second demulsification and oil removal membrane filter 35) achieves gradual and thorough demulsification of emulsified water in nitromethane, improving the demulsification effect. The fine filtration of the demulsification and oil removal membrane filter removes tiny impurities and particles from the nitromethane, improving its purity. The design of the nitrogen inlet 32 ​​allows for adjustment of the pressure inside the tank as needed, creating more favorable conditions for the demulsification process. The impurity outlet 33 facilitates regular cleaning of impurities and deposits inside the tank 31, maintaining the demulsifier 3 in good working condition and simplifying the maintenance process.

[0045] In one implementation, such as Figure 1 As shown, the first water distribution tank 1 is equipped with a first density level gauge 13; the first water outlet pipe 11 is equipped with a first water outlet solenoid valve, and the first discharge pipe 12 is equipped with a first discharge solenoid valve; the nitromethane demulsifying water distributor also includes a controller, which is electrically connected to the first density level gauge 13, the first water outlet solenoid valve and the first discharge solenoid valve.

[0046] In this embodiment, the first density liquid level meter 13 monitors the density and liquid level changes of the water in the first water tank 1 in real time, providing accurate data input for the controller. It helps to judge the progress and effect of water separation, as well as the purity of nitromethane in the tank. The first water outlet solenoid valve is responsible for controlling the discharge of water in the first water outlet pipeline 11, and its on-off state is determined by the controller according to real-time monitoring data and control logic. The first discharge solenoid valve controls the output of nitromethane after water separation in the first discharge pipeline 12, which is also precisely controlled by the controller. The controller, as the core of the entire water separation system, receives and processes data from the first density liquid level meter 13. According to the preset algorithm and logic, the on-off state of the solenoid valve is adjusted in real time to achieve the best water separation effect. The addition of the controller makes the entire water separation process more intelligent and automated, reducing human intervention and errors. Through the precise control and fault diagnosis function of the controller, abnormal situations in the system can be discovered and handled in time, enhancing the stability and safety of the system.

[0047] Specifically, the first density liquid level meter 13 is between water and nitromethane, and the liquid level meter float ball of the first density liquid level meter 13 is suspended at the junction of water and nitromethane. Under normal circumstances, as the crude nitromethane continuously enters the first water tank 1, stratification will be formed. When the upper layer of water reaches the overflow and the float ball is below the overflow, the first water outlet solenoid valve will slowly open. As the float ball rises, the first water outlet solenoid valve opening will slowly decrease until it closes, while the first discharge solenoid valve will open and the delivery pump 2 will start, completing the discharge of the lower nitromethane.

[0048] In one embodiment, the nitromethane demulsification water separator further comprises: a first display screen, the first display screen is electrically connected with the controller, and the first display screen is used to display the density value monitored by the first density liquid level meter 13, the valve state of the first water outlet solenoid valve and the first discharge solenoid valve.

[0049] In this embodiment, the nitromethane demulsification water separator is further equipped with a first display screen, which provides a more intuitive and convenient monitoring interface for the operator. The first display screen is electrically connected with the controller and serves as the main interface for human-computer interaction. It displays the nitromethane density value monitored by the first density liquid level meter 13 and the current state (such as opening, closing or failure) of the first water outlet solenoid valve and the first discharge solenoid valve in real time. The controller processes the state information from the first density liquid level meter and the solenoid valves and transmits these data to the first display screen for display in real time. The display screen also has touch or button input function, allowing the operator to perform parameter setting, mode selection or fault diagnosis and other operations on the controller.

[0050] In one embodiment, the nitromethane demulsification water separator further comprises: a first backwater tank, the input end of the first backwater tank is communicated with the first water outlet pipeline 11.

[0051] In the embodiment, the first water return tank is a separate storage unit, which is ingeniously arranged in the water separation system. The input end of the first water return tank is closely connected with the first water outlet pipeline 11, so as to ensure that the separated water from the first water separation tank 1 can smoothly flow into the first water return tank. The separated water is then guided into the first water return tank through the first water outlet pipeline 11, so as to realize the recycling and reuse of the water or subsequent safe treatment.

[0052] In an embodiment, as shown in Figure 1 The second density liquid level meter 43 is arranged in the second water separation tank 4, the second water outlet pipeline 41 is provided with a second water outlet electromagnetic valve, the second discharge pipeline 42 is provided with a second discharge electromagnetic valve, and the controller is in communication with the second density liquid level meter 43, the second water outlet electromagnetic valve and the second discharge electromagnetic valve.

[0053] In the embodiment, the working principles of the second density liquid level meter 43, the second water outlet electromagnetic valve and the second discharge electromagnetic valve can refer to the working principles of the controller, the first density liquid level meter 13, the first water outlet electromagnetic valve and the first discharge electromagnetic valve.

[0054] In an embodiment, the nitromethane demulsification water separator further comprises a second display screen, which is electrically connected with the controller and is used to display the density value monitored by the second density liquid level meter 43 and the valve states of the second water outlet electromagnetic valve and the second discharge electromagnetic valve.

[0055] In the embodiment, the functions of the second display screen can refer to the functions of the first display screen.

[0056] In an embodiment, the nitromethane demulsification water separator further comprises a second water return tank, the input end of which is in communication with the second water outlet pipeline 41.

[0057] In the embodiment, the second water return tank is a separate storage unit, which is ingeniously arranged in the water separation system. The input end of the first water return tank is closely connected with the first water outlet pipeline 11, so as to ensure that the separated water from the first water separation tank 1 can smoothly flow into the first water return tank. The separated water is then guided into the first water return tank through the first water outlet pipeline 11, so as to realize the recycling and reuse of the water or subsequent safe treatment.

[0058] In an embodiment, as shown in Figure 1 The nitromethane demulsification water separator further comprises a condenser 5, and the output end of the condenser 5 is in communication with the input end of the first water separation tank 1.

[0059] In this embodiment, the condenser 5 is a commonly used device in chemical processes, mainly used for condensing gaseous or vapor state substances into liquid state. The condenser 5 is used to treat the steam or volatile components in the nitromethane mixed liquid, and condenses them into liquid state before being sent to the first water trap 1. The nitromethane mixed liquid is first condensed by the condenser 5 before entering the first water trap 1. The condensed mixed liquid (including nitromethane and moisture) then enters the first water trap 1 for demulsification and water separation operation. Through condensation treatment, the steam and volatile components in the nitromethane mixed liquid can be removed, reducing the impact of these components on water separation accuracy, thereby improving water separation effect. The temperature of the condensed mixed liquid is reduced, which helps to improve the working environment in the water trap, making the water separation process more stable and efficient. Condensation treatment can reduce the erosion of impurities and corrosive substances in the mixed liquid to the water separation equipment, prolonging the service life of the equipment.

[0060] In one embodiment, as shown in Figure 1 The nitromethane demulsification water separator further comprises a distillation kettle 6, the output end of the distillation kettle 6 being in communication with the input end of the condenser 5.

[0061] In this embodiment, the distillation kettle 6 is used to pretreat the nitromethane mixed liquid, removing certain impurities or volatile components through distillation operation. The nitromethane mixed liquid first enters the distillation kettle 6 for distillation treatment. The distilled mixed liquid (including nitromethane and possibly remaining moisture and other components) then enters the condenser 5 for condensation treatment. The condensed mixed liquid finally enters the first water trap 1 for demulsification and water separation operation.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0064] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A nitromethane demulsifying water trap, characterized by, It comprises: A first water tank (1) is communicated with a first water outlet pipeline (11) and a first discharge pipeline (12); A delivery pump (2) is communicated with the first discharge pipeline (12) at the input end, and the output end of the delivery pump (2) is communicated with the input end of a demulsifier (3); A second water tank (4) is communicated with the output end of the demulsifier (3) at the input end, and the second water tank (4) is communicated with a second water outlet pipeline (41) and a second discharge pipeline (42).

2. The nitromethane demulsification water separator according to claim 1, wherein the demulsifier (3) comprises: A tank body (31) is provided with a nitrogen charging inlet (32) and an impurity outlet (33); A first demulsification oil removal membrane filter element (34) is installed in the inside of the tank body (31), and the input end of the first demulsification oil removal membrane filter element (34) is communicated with the output end of the delivery pump (2) through a first delivery pipeline; A second demulsification oil removal membrane filter element (35) is installed in the inside of the tank body (31), and the output end of the second demulsification oil removal membrane filter element (35) is communicated with the input end of the second water tank (4) through a second delivery pipeline.

3. The nitromethane demulsification water separator according to claim 1, wherein the first water tank (1) is provided with a first density liquid level meter (13); The first water outlet pipeline (11) is provided with a first water outlet electromagnetic valve, and the first discharge pipeline (12) is provided with a first discharge electromagnetic valve; The nitromethane demulsification water separator further comprises: A controller is electrically connected with the first density liquid level meter (13), the first water outlet electromagnetic valve and the first discharge electromagnetic valve.

4. The nitromethane demulsification water separator according to claim 3, wherein the nitromethane demulsification water separator further comprises: A first display screen is electrically connected with the controller, and the first display screen is used for displaying the density value monitored by the first density liquid level meter (13), and the valve state of the first water outlet electromagnetic valve and the first discharge electromagnetic valve.

5. The nitromethane demulsification water separator according to claim 3, wherein the nitromethane demulsification water separator further comprises: A first backwater tank is communicated with the first water outlet pipeline (11) at the input end.

6. The nitromethane demulsification water separator according to claim 3, wherein the second water tank (4) is provided with a second density liquid level meter (43); The second water outlet pipeline (41) is provided with a second water outlet electromagnetic valve, and the second discharge pipeline (42) is provided with a second discharge electromagnetic valve; The controller is communicated with the second density liquid level meter (43), the second water outlet electromagnetic valve and the second discharge electromagnetic valve.

7. The nitromethane demulsification water separator according to claim 6, wherein the nitromethane demulsification water separator further comprises: ​ ​ ​ ​ ​ ​ A second display screen is electrically connected with the controller, and is used for displaying the density value monitored by the second density liquid level meter (43) and the valve state of the second water outlet electromagnetic valve and the second discharge electromagnetic valve. 8.The nitromethane demulsifying water trap of claim 6, wherein the nitromethane demulsifying water trap further comprises: The nitromethane demulsifying water trap further comprises: A second water return tank, an input end of the second water return tank being communicated with the second water outlet pipeline (41). 9.The nitromethane demulsifying water trap of claim 1, wherein the nitromethane demulsifying water trap further comprises: The nitromethane demulsifying water trap further comprises: A condenser (5), an output end of the condenser (5) being communicated with an input end of the first water trap tank (1). 10.The nitromethane demulsifying water trap of claim 9, wherein the nitromethane demulsifying water trap further comprises: The nitromethane demulsifying water trap further comprises: A distillation kettle (6), an output end of the distillation kettle (6) being communicated with an input end of the condenser (5).

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