Vacuum pumping device for reaction kettle

Abstract

The utility model relates to the technical field of reaction kettle vacuumizing, in particular to a reaction kettle vacuumizing device which comprises a reaction kettle body, a separating tower arranged beside the reaction kettle body, a water tower arranged beside the separating tower, a vacuum pump arranged beside the water tower, the separating tower comprises an outer frame body, a cooling frame structure is arranged in the outer frame body, and the cooling frame structure comprises a transverse frame. A plurality of through holes are formed in the two sides of the outer frame body, connecting frames are fixed to the positions, located on the outer sides of the through holes, of the two sides of the outer frame body, stepped openings are formed in the upper sides of the connecting frames, and filter plates are inserted into the stepped openings. One side of the connecting frame communicates with an air conveying pipe. The separation tower structure solves the problems that the separation tower structure in the existing reaction kettle vacuumizing device is poor in heat exchange efficiency, cannot completely separate waste gas and affects the normal operation of a vacuum pump.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettle vacuum pumping, in particular to a reaction kettle vacuum pumping device. Background Art

[0002] When the heated slurry and solvent enter the reaction kettle for reaction, in order to prevent oxygen in the air mixed in the feed pipeline from reacting with the reaction product for the second time, resulting in impure reaction products, it is necessary to continuously evacuate the reaction kettle. Existing equipment generally evacuates the reaction kettle through a vacuum pump to remove the air in the reaction kettle. However, after the solvent is mixed with the heated slurry, the solvent is prone to volatilization. Along with the air being pumped away by the vacuum pump, over time, the volatilized solvent accumulates on the output shaft of the vacuum pump, forming viscous dirt, which affects the operation of the vacuum pump and even causes damage to the vacuum pump.

[0003] In the Chinese utility model patent with the application number: CN202321135114.8, a reaction kettle vacuum pumping device is disclosed. Its structure includes a reaction kettle and a vacuum pump. The vacuum pump is arranged on the right side of the reaction kettle. The slurry pipe and the solvent pipe are sequentially arranged on the upper part of the reaction kettle from left to right. The discharge pipe is arranged at the bottom of the reaction kettle, and an electric valve is arranged on the discharge pipe. A separation tower is arranged on the right side of the reaction kettle, and a cooling water tower is arranged on the right side of the separation tower. The reaction kettle is connected to the separation tower through a pipeline. A spiral pipe is arranged in the separation tower. The upper port and the lower port of the spiral pipe are respectively connected to the corresponding pipelines, and the pipelines are connected to the cooling water tower. A water pump is arranged on the pipeline connecting the separation tower and the cooling water tower. The separation tower is connected to the vacuum pump through a pipeline.

[0004] The separation tower structure in this device exchanges heat with the exhaust gas discharged from the reaction kettle through the water cooling of the spiral pipe, so that the exhaust gas is cooled to a liquid state and remains in the separation tower. The vacuum pump will extract the separated gas. However, in this structure, due to the small contact area between the spiral pipe and the exhaust gas, the heat exchange efficiency is poor, resulting in insufficient cooling. Moreover, there are large-particle impurities in the exhaust gas discharged from the reaction kettle. Insufficient cooling will also cause the large-particle impurities not to react completely, and thus will be pumped away by the vacuum pump, affecting the operation of the vacuum pump. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the heat exchange efficiency of the separation tower structure in the existing reaction kettle vacuum pumping device is poor, and the exhaust gas cannot be completely separated, affecting the normal operation of the vacuum pump.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a reactor vacuum device, including a reactor body, a separation tower is provided next to the reactor body, a water tower is provided next to the separation tower, a vacuum pump is provided next to the water tower, the separation tower includes an outer frame, a cooling frame structure is provided inside the outer frame, the cooling frame structure includes a transverse frame, a plurality of vertical frames are connected to the lower side of the transverse frame, a water pipe is connected to the top of the transverse frame, a water outlet pipe is connected to the lower side of the vertical frame, a plurality of through holes are opened on both sides of the outer frame, connecting frames are fixed on both sides of the outer frame outside the plurality of through holes, a stepped opening is opened on the upper side of the connecting frame, a filter plate is inserted in the stepped opening, and a gas pipe is connected to one side of the connecting frame.

[0007] As a further solution of the utility model: baffles are fixed on the upper sides of the outer frame body, and the transverse frame is arranged above the baffles to facilitate the installation and disassembly of the cooling frame structure.

[0008] As a further solution of the utility model: a sealing cover is provided on the upper cover of the outer frame, and a water supply pipe and a water outlet pipe respectively pass through the sealing cover and the lower side of the outer frame, and are respectively connected to the top and bottom of the water tower through the water supply pipe; a water pump is connected to the middle part of the water supply pipe connected to the water supply pipe for conveying coolant.

[0009] As a further solution of the utility model: the top of the filter plate is a fitting platform structure, and the fitting platform structure and the stepped opening fit tightly with each other, which can achieve a sealing effect.

[0010] As a further solution of the utility model: the separation tower is connected to the interior of the reactor body and the vacuum pump respectively through gas pipes on both sides.

[0011] As a further solution of the utility model: a slurry pipe and a solvent pipe are connected to the top of the reactor body, and a discharge pipe is connected to the bottom of the reactor body.

[0012] As a further solution of the utility model: the vacuum pump and the water pump are electrically connected to an external power supply respectively.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model adds a cooling frame structure, which can increase the heat exchange area through a horizontal frame and multiple vertical frames, so that the exhaust gas can be cooled faster, and adds a detachable filtering structure, which can filter large particles in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a vacuum pumping device for a reaction kettle.

[0016] Figure 2 This is a three-dimensional view of the separation tower in a vacuum pumping device for a reaction kettle of the present utility model.

[0017] Figure 3 This is a sectional view of the separation tower in a vacuum pumping device for a reaction kettle of the present utility model.

[0018] Figure 4 This is a sectional view of the cooling frame structure in a vacuum pumping device for a reaction kettle of the present utility model.

[0019] In the attached drawings:

[0020] 1. Reaction kettle body; 2. Separation tower; 3. Water tower; 4. Vacuum pump; 5. Water supply pipe; 6. Water pump; 1.1. Slurry pipe; 1.2. Solvent pipe; 1.3. Discharge pipe; 2.1. Outer frame body; 2.2. Horizontal frame; 2.3. Vertical frame; 2.4. Water delivery pipe; 2.5. Water outlet pipe; 2.6. Through hole; 2.7. Connection frame; 2.8. Step-shaped opening; 2.9. Filter plate; 2.10. Gas delivery pipe; 2.11. Baffle; 2.12. Sealing cover. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a technical solution: to solve the existing problems proposed in the background technology.

[0023] Combined with the attached Figure 1 , it can be known that the device includes a reaction kettle body 1, a separation tower 2 is arranged beside the reaction kettle body 1, a water tower 3 is arranged beside the separation tower 2, a vacuum pump 4 is arranged beside the water tower 3, the water delivery pipe 2.4 and the water outlet pipe 2.5 are respectively connected to the top and bottom of the water tower 3 through a water supply pipe 5, and a water pump 6 is connected in the middle of the water supply pipe 5 connected to the water delivery pipe 2.4 for transporting coolant; a slurry pipe 1.1 and a solvent pipe 1.2 are connected to the top of the reaction kettle body 1, and a discharge pipe 1.3 is connected to the bottom of the reaction kettle body 1; the vacuum pump 4 and the water pump 6 are respectively electrically connected to an external power supply, and the separation tower 2 is connected to the inside of the reaction kettle body 1 and the vacuum pump 4 through gas delivery pipes 2.10 on both sides;

[0024] Combined with the attached Figures 2 - 4, it can be known that the separation tower 2 includes an outer frame body 2.1. Inside the outer frame body 2.1, there is a cooling frame structure. The cooling frame structure includes a horizontal frame 2.2. A number of vertical frames 2.3 are connected and provided below the horizontal frame 2.2. A water delivery pipe 2.4 is connected and provided at the top of the horizontal frame 2.2. A water outlet pipe 2.5 is connected and provided below the vertical frame 2.3. A number of through holes 2.6 are opened on both sides of the outer frame body 2.1. Connection frames 2.7 are fixed on both sides of the outer frame body 2.1 outside the number of through holes 2.6. A stepped opening 2.8 is opened on the upper side of the connection frame 2.7. A filter plate 2.9 is inserted in the stepped opening 2.8. An air delivery pipe 2.10 is connected and provided on one side of the connection frame 2.7; on both sides above the inside of the outer frame body 2.1, there are fixed retaining platforms 2.11. The horizontal frame 2.2 is erected above the retaining platforms 2.11, which is convenient for the installation and disassembly of the cooling frame structure; a sealing cover 2.12 is covered on the upper side of the outer frame body 2.1. The water delivery pipe 2.4 and the water outlet pipe 2.5 respectively pass through the sealing cover 2.12 and the lower side of the outer frame body 2.1. The top of the filter plate 2.9 is a fitting table structure, and the fitting table structure and the stepped opening 2.8 are tightly fitted with each other, which can achieve a sealing effect.

[0025] The working principle of this application is as follows: When the reaction kettle body 1 is working and reacting, waste gas will be released. And the reaction kettle body 1 needs to be mixed in a vacuum environment during the working process. Therefore, it is necessary to use a vacuum pump 4 to evacuate the inside of the reaction kettle body 1. When evacuating, the waste gas will be drawn out of the reaction kettle body 1. Then the waste gas will enter the connection frame 2.7 through the air delivery pipe 2.10. The large particle structures in the waste gas will be filtered by the filter plate 2.9. The filtered waste gas will enter the inside of the outer frame body 2.1 through a number of through holes 2.6. Starting the water pump will draw the coolant out of the water tower 3 and output it into the inside of the horizontal frame 2.2 and the vertical frame 2.3, so that the temperature inside the outer frame body 2.1 drops. When the waste gas passes through the cooling frame structure, it will exchange heat with the coolant, so that the waste gas is cooled into a liquid state and remains inside the outer frame body 2.1. The separated gas will be drawn away by the vacuum pump 4 and will not cause damage to the vacuum pump 4.

[0026] The above describes the present utility model and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and without departing from the creative concept of the present utility model, they design similar structural manners and embodiments to this technical solution without creative efforts, and these should all fall within the protection scope of the present utility model.

Claims

1. A vacuum pumping device for a reaction kettle, comprising a reaction kettle body (1), a separation tower (2) is arranged beside the reaction kettle body (1), a water tower (3) is arranged beside the separation tower (2), and a vacuum pump (4) is arranged beside the water tower (3), characterized in that: The separation tower (2) includes an outer frame body (2.1). Inside the outer frame body (2.1), there is a cooling frame structure. The cooling frame structure includes a horizontal frame (2.2). A number of vertical frames (2.3) are connected and provided at the lower side of the horizontal frame (2.2). A water delivery pipe (2.4) is connected and communicated at the top of the horizontal frame (2.2). A water outlet pipe (2.5) is connected and communicated at the lower side of the vertical frame (2.3). A number of through holes (2.6) are opened on both sides of the outer frame body (2.1). Connection frames (2.7) are fixed on both sides of the outer frame body (2.1) outside the number of through holes (2.6). A stepped opening (2.8) is opened on the upper side of the connection frame (2.7). A filter plate (2.9) is inserted in the stepped opening (2.8). An air delivery pipe (2.10) is connected and communicated on one side of the connection frame (2.7).

2. The vacuum extraction device for a reactor according to claim 1, wherein: On both sides above inside the outer frame body (2.1), retaining platforms (2.11) are fixed. The horizontal frame (2.2) is erected above the retaining platforms (2.11).

3. The vacuum pumping device for a reactor according to claim 2, wherein: A sealing cover (2.12) is covered on the upper side of the outer frame body (2.1). The water delivery pipe (2.4) and the water outlet pipe (2.5) respectively pass through the sealing cover (2.12) and the lower side of the outer frame body (2.1).

4. A reaction kettle vacuum pumping device according to claim 1, characterized in that: The top of the filter plate (2.9) is a fitting platform structure, and the fitting platform structure fits tightly with the stepped opening (2.8).

5. A vacuum pumping device for a reaction kettle according to claim 1, characterized in that: The separation tower (2) is respectively communicated with the inside of the reaction kettle body (1) and the vacuum pump (4) through the air delivery pipes (2.10) on both sides.

6. The vacuum pumping device for a reactor according to claim 1, characterized in that: The water delivery pipe (2.4) and the water outlet pipe (2.5) are respectively communicated with the top and the bottom of the water tower (3) through a water supply pipe (5). A water pump (6) is connected and communicated in the middle of the water supply pipe (5) connected with the water delivery pipe (2.4).

7. A vacuum pumping device for a reaction kettle according to claim 1, wherein: A slurry pipe (1.1) and a solvent pipe (1.2) are connected and communicated at the top of the reaction kettle body (1). An outlet pipe (1.3) is connected and communicated at the bottom of the reaction kettle body (1).

8. A vacuum pumping device for a reactor according to claim 6, characterized in that: The vacuum pump (4) and the water pump (6) are respectively electrically connected with an external power source.

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