Explosion-proof reaction reflux water distribution device

Abstract

The utility model belongs to the technical field of reaction process control equipment, and particularly relates to an explosion-proof reaction reflux water distribution device which comprises a reaction kettle, a first condenser, a visible explosion-proof gas-liquid separator, a U-shaped pipe, a second condenser, a buffer tank, a receiving tank and a third condenser, each of the first condenser, the second condenser and the third condenser comprises a shell pass pipeline and a tube pass pipeline; a first exhaust end is arranged at the top of the reaction kettle; a first liquid outlet end is arranged at the bottom of the reaction kettle; a first exhaust end at the top of the reaction kettle is communicated with an inlet end of a tube pass pipeline at the top of the first condenser through a first evaporation pipeline; and the outlet end of the tube pass pipeline at the bottom of the first condenser is communicated with the inlet end of the top of the visible explosion-proof gas-liquid separator through a first glass tube explosion-proof visual cup. According to the utility model, the reaction efficiency can be ensured, the water and the oil phase solvent can be effectively separated, and the utilization rate of the water and the oil phase solvent is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction process control equipment, and specifically relates to an explosion-proof reaction reflux water separation device. Background Art

[0002] At present, in the chemical and pharmaceutical production processes, some reaction processes will produce water. The water produced by the reaction can be evaporated by selecting a suitable solvent to form an azeotrope. The condensate after the azeotrope is condensed can be separated from the water by a water separator. The organic solvent from which the water is separated is refluxed into the reactor to continue to participate in the reaction. At the same time, separating water from the reaction system through a water separator can also promote the forward reaction and improve the conversion rate.

[0003] However, traditional condensers and glass water separators are not pressure-resistant, easily cracked and broken, and the separation effect is poor; metal water separators cannot directly observe the progress of the reaction, and the reaction heating and time control are not intuitive. Therefore, improving the safety of ultra-long reflux reactions is a technical problem that urgently needs to be solved in the field of chemical production.

[0004] Based on this, the utility model designs an explosion-proof visual reaction water separation and reflux device, which can not only achieve the effect of water separation, but also directly observe the reaction process, thereby improving the safety of ultra-long time reflux reaction. Utility Model Content

[0005] In order to solve the above technical problems, the present application proposes an explosion-proof reaction reflux water separation device with simple structure, safety and reliability, practical functions, convenient operation, and outstanding energy saving and consumption reduction. While ensuring the reaction efficiency, it can also achieve effective separation of water and oil phase solvent, thereby improving the utilization rate of water and oil phase solvent.

[0006] Based on the above purpose, the utility model adopts the following technical solutions:

[0007] An explosion-proof reaction reflux water separation device, comprising a reaction kettle, a first condenser, a visible explosion-proof gas-liquid separator, a U-shaped tube, a second condenser, a buffer tank, a receiving tank, and a third condenser;

[0008] The first condenser, the second condenser and the third condenser each include a shell-side pipeline and a tube-side pipeline;

[0009] A first exhaust port is provided at the top of the reactor, and a first liquid outlet port is provided at the bottom of the reactor;

[0010] The first exhaust end at the top of the reactor is connected to the inlet end of the top tube-side pipeline of the first condenser through the first evaporation pipeline;

[0011] The outlet end of the pipeline at the bottom of the first condenser is connected to the inlet end at the top of the visual explosion-proof gas-liquid separator through the first glass tube explosion-proof sight glass;

[0012] The visual explosion-proof gas-liquid separator is provided with three outlets, namely, a first branch outlet located at the left end of the visual explosion-proof gas-liquid separator, a second branch outlet located at the bottom end of the visual explosion-proof gas-liquid separator, and a third branch outlet located at the right end of the visual explosion-proof gas-liquid separator;

[0013] The U-shaped tube includes a bending portion, a first vertical portion connected to the right end of the bending portion, and a second vertical portion connected to the left end of the bending portion; the outlet end of the first branch is connected to the inlet end of the first vertical portion of the U-shaped tube;

[0014] A first liquid inlet is provided at the top of the receiving tank, and a second liquid outlet is provided at the bottom of the receiving tank;

[0015] The outlet end of the second branch is connected to the first liquid inlet end at the top of the receiving tank through the first liquid discharge pipe;

[0016] A second exhaust port is also provided at the top of the receiving tank; the second exhaust port at the top of the receiving tank is connected to the inlet end of the bottom tube side pipeline of the third condenser through the first exhaust pipeline;

[0017] The outlet end of the third branch is connected to the inlet end of the bottom tube side pipeline of the second condenser through the second emptying pipeline;

[0018] The outlet end of the pipeline on the top tube side of the second condenser is connected to the inlet end of the top of the buffer tank through the second liquid discharge pipe.

[0019] Furthermore, the shell-side piping and tube-side piping structures of the first condenser, the second condenser and the third condenser in the present invention adopt conventional arrangements in the prior art, and are not the inventive point of the present invention, so they will not be described in detail.

[0020] The shell-side pipelines of the first condenser, the second condenser and the third condenser are all connected to an external cooling water circulation system, and can exchange heat between the cooling water and the gas phase flowing through the tube-side pipelines, and condense the gas phase.

[0021] Furthermore, a first valve is provided at the connection between the first exhaust end at the top of the reactor and the first evaporation pipeline; and a second valve is provided at the first liquid outlet at the bottom of the reactor.

[0022] Furthermore, the distance between the first branch outlet and the bottom of the visual explosion-proof gas-liquid separator is smaller than the distance between the third branch outlet and the bottom of the visual explosion-proof gas-liquid separator, that is, on the visual explosion-proof gas-liquid separator, the first branch outlet is lower than the third branch outlet.

[0023] Furthermore, the reactor is also provided with a reflux end, and the outlet end of the second vertical portion of the U-shaped tube is connected to the reflux end of the reactor through a first reflux pipe.

[0024] Furthermore, a second glass tube explosion-proof sight glass and a third valve are provided on the first reflux pipe; and a fourth valve is also provided on the U-shaped bending portion of the U-shaped pipe.

[0025] Furthermore, a flow meter and a fifth valve are provided at the connection between the second branch outlet and the first liquid discharge pipe; a sixth valve is provided at the connection between the first liquid discharge pipe and the first liquid inlet end of the receiving tank; and a seventh valve is provided at the second liquid outlet at the bottom of the receiving tank.

[0026] Furthermore, the outlet end of the pipeline on the top tube side of the third condenser is connected to an external tail gas recovery system through a pipeline.

[0027] Furthermore, an eighth valve is provided at the connection between the second exhaust end of the receiving tank and the first exhaust pipeline.

[0028] Furthermore, the outlet end at the top of the buffer tank is connected to an external tail gas recovery system through a pipeline.

[0029] Furthermore, the first glass tube explosion-proof sight glass and the second glass tube explosion-proof sight glass in the utility model both adopt conventional equipment in the prior art, and their structures are not the inventive point of the utility model, so they are not described in detail; the first glass tube explosion-proof sight glass and the second glass tube explosion-proof sight glass are used to observe the outflow of materials.

[0030] Furthermore, the reactor is also provided with a pressure gauge and a thermometer for observing the reaction conditions in the reactor.

[0031] Furthermore, the visual explosion-proof gas-liquid separator is a steel-lined sprayed F40 tank with a hollow interior. The front and rear sides of the visual explosion-proof gas-liquid separator are provided with sight glasses, which can be used to observe the stratification in the visual explosion-proof gas-liquid separator. The sight glasses are made of safety explosion-proof glass, which can observe the reaction speed and the reflux water process.

[0032] Furthermore, the outlet end of the first branch is an overflow port. When the liquid containing water and organic solvent is phase-separated in the visual explosion-proof gas-liquid separator, the upper organic solvent liquid level reaches the outlet end of the first branch. At this time, the organic solvent in phase with the water overflows through the outlet end of the first branch into the U-shaped tube, and then flows back into the reactor.

[0033] Furthermore, the bottom ends of the first condenser, the second condenser and the third condenser are provided with pressure gauges and thermometers for monitoring the steam volume and the heat exchange effect of the condenser.

[0034] The beneficial effects of the utility model are:

[0035] 1. The utility model is composed of a reaction kettle, a first condenser, a visible explosion-proof gas-liquid separator, a U-shaped tube, a second condenser, a buffer tank, a receiving tank, a third condenser and other components, which can improve the reaction efficiency and safety level.

[0036] 2. The device described in the utility model has a wide range of uses and can be used in both normal pressure and reduced pressure environments. The device as a whole is resistant to acid and alkali corrosion and has a long service life.

[0037] 3. The utility model has high efficiency in reflux water, which can improve reaction conversion rate and yield, improve material utilization rate, save energy, reduce emissions and reduce consumption.

[0038] 4. The utility model is suitable for processes that easily produce water during the reaction process.

[0039] 5. The utility model has the characteristics of simple structure, safety and explosion-proof, corrosion resistance, practical functions, energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic structural diagram of the explosion-proof reaction reflux water separation device described in Example 1;

[0041] In the figure, 1, reactor; 2, first condenser; 3, visual explosion-proof gas-liquid separator; 4, second condenser; 5, receiving tank; 6, third condenser; 7, buffer tank; 8, U-shaped tube; 11, first evaporation pipeline; 12, first valve; 13, second valve; 21, first glass tube explosion-proof sight glass; 31, first reflux pipe; 32, first drain pipe; 33, second emptying pipeline; 34, third valve; 35, second glass tube explosion-proof sight glass; 36, fourth valve; 37, fifth valve; 38, flow meter; 41, second drain pipe; 51, sixth valve; 52, first emptying pipeline; 53, eighth valve; 54, seventh valve. DETAILED DESCRIPTION

[0042] In order to make the technical means, technical features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0043] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense; for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0046] Example 1

[0047] like Figure 1 As shown, an explosion-proof reaction reflux water separation device includes a reaction kettle 1, a first condenser 2, a visible explosion-proof gas-liquid separator 3, a U-shaped tube 8, a second condenser 4, a buffer tank 7, a receiving tank 5, and a third condenser 6;

[0048] The first condenser 2, the second condenser 4 and the third condenser 6 all include shell-side piping and tube-side piping; the shell-side piping and tube-side piping structures of the first condenser 2, the second condenser 4 and the third condenser 6 in the utility model adopt conventional settings in the prior art, and are not the inventive point of the utility model, so they are not described in detail.

[0049] The shell-side pipelines of the first condenser 2, the second condenser 4 and the third condenser 6 are all connected to an external cooling water circulation system, and can exchange heat between the cooling water and the gas phase flowing through the tube-side pipelines, and condense the gas phase.

[0050] The top of the reactor 1 is provided with a first exhaust port, and the bottom of the reactor 1 is provided with a first liquid outlet port;

[0051] The first exhaust end at the top of the reactor 1 is connected to the inlet end of the top tube-side pipeline of the first condenser 2 through the first evaporation pipeline 11, and a first valve 12 is provided at the connection between the first exhaust end at the top of the reactor 1 and the first evaporation pipeline 11;

[0052] A second valve 13 is provided at the first liquid outlet at the bottom of the reactor 1 .

[0053] The outlet end of the bottom tube of the first condenser 2 is connected to the inlet end of the top of the visual explosion-proof gas-liquid separator 3 through the first glass tube explosion-proof sight glass 21;

[0054] The visual explosion-proof gas-liquid separator 3 is provided with three outlets, namely, a first branch outlet located at the left end of the visual explosion-proof gas-liquid separator 3, a second branch outlet located at the bottom end of the visual explosion-proof gas-liquid separator 3, and a third branch outlet located at the right end of the visual explosion-proof gas-liquid separator 3;

[0055] The distance between the first branch outlet and the bottom of the visual explosion-proof gas-liquid separator 3 is smaller than the distance between the third branch outlet and the bottom of the visual explosion-proof gas-liquid separator 3, that is, on the visual explosion-proof gas-liquid separator 3, the first branch outlet is lower than the third branch outlet;

[0056] The U-shaped tube 8 includes a bending portion, a first vertical portion connected to the right end of the bending portion, and a second vertical portion connected to the left end of the bending portion;

[0057] The outlet end of the first branch is connected to the inlet end of the first vertical portion of the U-shaped tube 8. A reflux end is also provided on the right side of the reactor 1. The outlet end of the second vertical portion of the U-shaped tube 8 is connected to the reflux end of the reactor 1 through the first reflux pipe 31.

[0058] A second glass tube explosion-proof sight glass 35 and a third valve 34 are provided on the first reflux pipe 31 ; a fourth valve 36 is also provided on the U-shaped bending portion of the U-shaped pipe 8 .

[0059] A first liquid inlet is provided at the top of the receiving tank 5, and a second liquid outlet is provided at the bottom of the receiving tank 5;

[0060] The outlet end of the second branch is connected to the first liquid inlet end at the top of the receiving tank 5 through the first liquid discharge pipe 32. A flow meter 38 and a fifth valve 37 are provided at the connection between the outlet end of the second branch and the first liquid discharge pipe 32. A sixth valve 51 is provided at the connection between the first liquid discharge pipe 32 and the first liquid inlet end of the receiving tank 5. A seventh valve 54 is provided at the second liquid outlet end at the bottom of the receiving tank 5.

[0061] Furthermore, a second exhaust port is provided at the top of the receiving tank 5;

[0062] The second exhaust end at the top of the receiving tank 5 is connected to the inlet end of the tube-side pipeline at the bottom of the third condenser 6 through the first exhaust pipeline 52, and the outlet end of the tube-side pipeline at the top of the third condenser 6 is connected to the external tail gas recovery system through the pipeline;

[0063] An eighth valve 53 is also provided at the connection between the second exhaust end of the receiving tank 5 and the first exhaust pipeline 52;

[0064] The outlet end of the third branch is connected to the inlet end of the bottom tube side pipeline of the second condenser 4 through the second emptying pipeline 33;

[0065] The outlet end of the top tube-side pipeline of the second condenser 4 is connected to the inlet end of the top of the buffer tank 7 through the second drain pipe 41 .

[0066] Furthermore, the outlet end at the top of the buffer tank 7 is connected to an external tail gas recovery system through a pipeline.

[0067] The first glass tube explosion-proof sight glass 21 and the second glass tube explosion-proof sight glass 35 in the utility model are conventional equipment in the prior art, and their structures are not the inventive point of the utility model, so they are not repeated; the first glass tube explosion-proof sight glass 21 and the second glass tube explosion-proof sight glass 35 are used to observe the outflow of materials, wherein the explosion-proof sight glasses of the first glass tube explosion-proof sight glass 21 and the second glass tube explosion-proof sight glass 35 are 20 mm thick, 316 mm high and 116 mm wide.

[0068] The reactor 1 is also provided with a pressure gauge and a thermometer (not shown in the figure) for observing the reaction conditions in the reactor 1 .

[0069] The visual explosion-proof gas-liquid separator 3 is a steel-lined sprayed F40 tank with a hollow interior. The front and rear sides of the visual explosion-proof gas-liquid separator 3 are provided with sight glasses, which can be used to observe the stratification in the visual explosion-proof gas-liquid separator 3. The sight glasses are made of safety explosion-proof glass, which can observe the reaction speed and the reflux water process.

[0070] Among them, the outlet end of the first branch is an overflow port. When the liquid containing water and organic solvent is phase-separated in the visual explosion-proof gas-liquid separator 3, the upper organic solvent liquid level reaches the outlet end of the first branch. At this time, the organic solvent in phase with the water overflows through the outlet end of the first branch into the U-shaped tube 8, and then flows back into the reactor 1.

[0071] The liquid containing water and organic solvent entering the visual explosion-proof gas-liquid separator 3 is divided into oil and water phases, the upper part is the organic solvent (oil phase), and the lower part is the water phase. The stratification line can be observed at the sight glasses on the front and rear sides of the visual explosion-proof gas-liquid separator 3. When the liquid level of the upper organic solvent reaches the outlet end of the first branch, it overflows from the outlet end of the first branch into the U-shaped tube 8, and then flows back into the reactor 1, while the gas volatilized by the organic solvent enters the second condenser 4 from the outlet end of the third branch for condensation.

[0072] Other structures not mentioned in the visual explosion-proof gas-liquid separator 3 described in this application are all conventional settings, and the visual explosion-proof gas-liquid separator 3 described in this application can adopt conventional models in the prior art, which will not be repeated here.

[0073] The bottom ends of the first condenser 2, the second condenser 4 and the third condenser 6 are all provided with pressure gauges and thermometers (not shown in the figure) for monitoring the steam volume and the heat exchange effect of the condenser.

[0074] The operation process of the utility model is:

[0075] During operation, the first valve 12 is opened, and the fifth valve 37 is closed. The water produced by the reactants in the reactor 1 during the reaction process forms an azeotrope with the organic solvent. The azeotrope enters the tube-side pipeline of the first condenser 2 through the first evaporation pipeline 11, and exchanges heat with the cooling water in the first condenser 2, is condensed into liquid, and enters the visual explosion-proof gas-liquid separator 3. Then, in the visual explosion-proof gas-liquid separator 3, it is separated into oil and water phases according to the difference in density, solubility and boiling point at different temperatures;

[0076] At the same time, the water and oil phase solvent in the visual explosion-proof gas-liquid separator 3 are separated and gradually enriched to the bottom of the visual explosion-proof gas-liquid separator 3 to obtain the water phase, and the control phase separation line can be observed at the sight glasses on the front and rear sides of the visual explosion-proof gas-liquid separator 3; when the liquid level of the organic solvent above the phase separation line reaches the first branch outlet end of the visual explosion-proof gas-liquid separator 3, the organic solvent in phase with the water flows into the U-shaped tube 8 through the first branch outlet end, and then flows back into the reactor 1 through the second glass tube explosion-proof sight glass 35, while the gas volatilized by the organic solvent enters the second condenser 4 from the third branch outlet end for condensation and continues to be condensed; then the fifth valve 37 and the sixth valve 51 are opened, and the water phase enters the receiving tank 5 through the first drain pipe 32, during which the amount of water can be measured by the flow meter 38;

[0077] Then the eighth valve 53 can be opened, and part of the volatile gas in the water phase entering the receiving tank 5 can enter the third condenser 6 through the first exhaust pipe 52, exchange heat with the cooling water, be condensed into liquid, and pass into the external tail gas recovery system at the outlet end of the top pipe of the third condenser 6 for post-processing;

[0078] The water that is not completely separated can continue to be separated again in the U-shaped tube 8. When the reflux water separation is completed, the fourth valve 36 is opened and separated through the fourth valve 36 at the bottom of the U-shaped tube 8 (the separated water here is very little, and the fourth valve 36 is only opened at the end);

[0079] The gas phase separated in the visible explosion-proof gas-liquid separator 3 enters the pipe side pipe of the second condenser 4 through the second exhaust pipe 33, exchanges heat with the cooling water, is condensed into liquid, and flows back to the visible explosion-proof gas-liquid separator 3. The volatile gas entering the buffer tank 7 enters the external exhaust gas recovery system through the outlet end at the top of the buffer tank 7 for post-processing.

[0080] When no stratification is observed in the visual explosion-proof gas-liquid separator 3 through the sight glass, it means that the water in the reactor 1 has been separated or the reaction produced by water is nearly completed, and the operation of the reactor 1 can be terminated or the reaction can be slowed down to stop the operation.

[0081] After the reaction is finished, the second valve 13 can be opened to discharge the reaction product and waste liquid and waste materials in the reactor 1; when the reaction is finished and the receiving tank 5 needs to be cleaned, the seventh valve 54 can be opened.

[0082] The utility model can separate the water and the oil phase solvent in the reactor 1, recycle the water, and return the oil phase to the reactor 1 for reuse, thereby improving the reaction efficiency and avoiding the problems that the traditional condenser and glass water separator are not pressure-resistant, easy to crack and break, and have poor separation effect; the metal water separator cannot directly observe the progress of the reaction, and the reaction heating and time control are not intuitive.

[0083] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An explosion-proof reaction reflux water separation device, characterized in that: It includes a reaction kettle, a first condenser, a visible explosion-proof gas-liquid separator, a U-shaped tube, a second condenser, a buffer tank, a receiving tank, and a third condenser; The first condenser, the second condenser and the third condenser each include a shell-side pipeline and a tube-side pipeline; A first exhaust port is provided at the top of the reactor, and a first liquid outlet port is provided at the bottom of the reactor; The first exhaust end at the top of the reactor is connected to the inlet end of the top tube-side pipeline of the first condenser through the first evaporation pipeline; The outlet end of the pipeline at the bottom of the first condenser is connected to the inlet end at the top of the visual explosion-proof gas-liquid separator through the first glass tube explosion-proof sight glass; The visual explosion-proof gas-liquid separator is provided with three outlets, namely, a first branch outlet located at the left end of the visual explosion-proof gas-liquid separator, a second branch outlet located at the bottom end of the visual explosion-proof gas-liquid separator, and a third branch outlet located at the right end of the visual explosion-proof gas-liquid separator; The U-shaped tube includes a bending portion, a first vertical portion connected to the right end of the bending portion, and a second vertical portion connected to the left end of the bending portion; the outlet end of the first branch is connected to the inlet end of the first vertical portion of the U-shaped tube; A first liquid inlet is provided at the top of the receiving tank, and a second liquid outlet is provided at the bottom of the receiving tank; The outlet end of the second branch is connected to the first liquid inlet end at the top of the receiving tank through the first liquid discharge pipe; A second exhaust port is also provided at the top of the receiving tank; the second exhaust port at the top of the receiving tank is connected to the inlet end of the bottom tube side pipeline of the third condenser through the first exhaust pipeline; The outlet end of the third branch is connected to the inlet end of the bottom tube side pipeline of the second condenser through the second emptying pipeline; The outlet end of the pipeline on the top tube side of the second condenser is connected to the inlet end of the top of the buffer tank through the second liquid discharge pipe.

2. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: A first valve is provided at the connection between the first exhaust end at the top of the reactor and the first evaporation pipeline; a second valve is provided at the first liquid outlet end at the bottom of the reactor.

3. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: The distance between the outlet end of the first branch and the bottom end of the visual explosion-proof gas-liquid separator is smaller than the distance between the outlet end of the third branch and the bottom end of the visual explosion-proof gas-liquid separator.

4. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: The reactor is also provided with a reflux end, and the outlet end of the second vertical portion of the U-shaped tube is connected with the reflux end of the reactor through a first reflux pipe.

5. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: The first reflux pipe is provided with a second glass tube explosion-proof sight glass and a third valve; the U-shaped bending part of the U-shaped pipe is also provided with a fourth valve.

6. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: A flow meter and a fifth valve are provided at the connection between the second branch outlet and the first liquid discharge pipe; a sixth valve is provided at the connection between the first liquid discharge pipe and the first liquid inlet end of the receiving tank; and a seventh valve is provided at the second liquid outlet end at the bottom of the receiving tank.

7. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: An eighth valve is also provided at the connection between the second exhaust end of the receiving tank and the first exhaust pipeline.

8. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: The reactor is also equipped with a pressure gauge and a thermometer.

9. The explosion-proof reaction reflux water separation device according to claim 1, characterized in that: The bottom ends of the first condenser, the second condenser and the third condenser are all provided with a pressure gauge and a thermometer.

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