Reaction kettle exhaust device based on Tesla valve

Abstract

The utility model discloses a reaction kettle exhaust device based on a Tesla valve, which comprises a surge bin, and partition plates are arranged at an inlet and an outlet of the surge bin for spatial isolation. A material returning Tesla valve structure is arranged at the bottom of the surge bin, and a plurality of Tesla valve structure units are arranged in the structure, so that materials can quickly flow back to the reaction kettle. A filter sieve plate is arranged at a gas outlet of the surge bin, a back-blowing pipe is arranged behind the sieve plate, a back-blowing valve is arranged behind the back-blowing pipe, a discharging Tesla valve structure is arranged at a gas outlet of a gas exhaust pipeline of the surge bin, and a plurality of Tesla valve structure units are arranged in the structure and are used for realizing rapid gas exhaust and preventing gas backflow, so that the sealing state in the reaction kettle is favorably maintained. According to the reaction kettle device, the problem that reactants are splashed into a pipeline to influence the opening and closing of a valve or block the pipeline in the stirring process of the reaction kettle device is solved, the waste of raw materials is reduced, and good economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to a reaction kettle exhaust device based on a Tesla valve. Background Art

[0002] The polymerization reaction in the reactor is generally an exothermic reaction, and releases a certain amount of by-product gas, which causes the pressure in the reactor to increase. The high temperature and high pressure environment generally reduces the rate of the forward reaction and increases the rate of the reverse reaction. Therefore, how to efficiently reduce the pressure and remove the by-product gas in the polymerization reaction is a difficulty in chemical production. At present, the exhaust of the reactor in production generally adopts the top direct discharge method, but the reactor may still be in a reaction state and requires continuous and uninterrupted stirring. Stirring will cause the materials and products in the reactor to splash. If the exhaust pipe is opened at this time, the reaction slurry and the product enter the exhaust pipe, which is easy to cause the valve to be unable to close and the pipeline to be blocked. Problems such as unstable production operation, large loss of raw materials and products, and increased labor intensity of employees, etc., the existing technology has no efficient solution to this. Utility Model Content

[0003] The utility model provides a reaction kettle exhaust device based on a Tesla valve, which has a reliable structure, high exhaust and back-feeding efficiency, and good recoil effect, thus solving the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A reactor exhaust device based on a Tesla valve includes a buffer bin connected to the reactor exhaust port, a feed port and an exhaust port are provided on the top of the buffer bin, a feed port is provided with a feed pipe, an exhaust pipe is provided at the exhaust port, the feed pipe and the exhaust pipe are separated by a partition, a return pipe is provided at the bottom of the buffer bin, the discharge end of the return pipe is connected in parallel to the feed end of the feed pipe, the feed end of the feed pipe is connected to the reactor exhaust port, and Tesla valve structures are provided on the exhaust pipe and the return pipe. The return Tesla valve structure on the return pipe has a plurality of Tesla valve structural units inside the structure to achieve rapid reflux of materials to the reactor. The exhaust Tesla valve structure on the exhaust pipe has a plurality of Tesla valve structural units inside the structure to achieve rapid exhaust and prevent gas backflow.

[0006] Furthermore, a filter screen plate is provided at the inner end of the exhaust pipe, and the Tesla valve structure of the exhaust pipe is located at the air outlet of the exhaust pipe.

[0007] Furthermore, a back-blowing pipe is provided on a branch of the exhaust pipe behind the filter screen plate, a back-blowing pipe is provided with a back-blowing valve, and a buffer bin outlet valve is provided on the exhaust pipe between the back-blowing pipe and the Tesla valve structure.

[0008] Furthermore, a buffer bin feed valve is provided on the feed pipeline.

[0009] Furthermore, the top of the partition is fixed on the top plate of the buffer bin, the front and rear sides of the partition are fixed on the inner wall of the buffer bin, and the lower end surface of the partition is higher than the feed end of the return pipe.

[0010] Furthermore, the return pipe is arranged obliquely downward from the feed end to the discharge end.

[0011] The utility model adopts the above structure, which is reliable, adds a buffer sedimentation device on the exhaust pipeline, solves the problems of entrained materials and material splashing caused by stirring during the exhaust process, achieves better economic benefits, and solves the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] In the figure, 1. exhaust port of reactor, 2. feed pipe, 3. feed valve of buffer bin, 4. partition, 5. return pipe, 6. Tesla valve structure for return, 7. buffer bin, 8. filter screen plate, 9. backflush valve, 10. backflush pipe, 11. outlet valve of buffer bin, 12. Tesla valve structure for exhaust, 13. exhaust pipe. DETAILED DESCRIPTION

[0014] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0015] A reactor exhaust device based on a Tesla valve, such as Figure 1As shown, a buffer bin 7 connected to the reactor exhaust port 1 is included, a feed port and an air outlet are provided at the top of the buffer bin 7, a feed pipe 2 is provided at the feed port, an exhaust pipe 13 is provided at the air outlet, the feed pipe 2 and the exhaust pipe 13 are separated by a partition 4, a return pipe 5 is provided at the bottom of the buffer bin 7, the discharge end of the return pipe 5 is connected in parallel to the feed end of the feed pipe 2, the feed end of the feed pipe 2 is connected to the reactor exhaust port 1, and a return Tesla valve structure 6 is provided on the return pipe 5. The return Tesla valve structure 6 has several Tesla valve structural units inside to achieve rapid reflux of materials to the reactor. The exhaust pipe 13 is provided with an exhaust Tesla valve structure 12 at the air outlet, and there are several Tesla valve structural units inside the structure to achieve rapid exhaust and prevent gas backflow. A filter screen plate 8 is provided at the air outlet of the buffer bin 7. A backflush pipe 10 is branched on the exhaust pipe 13 after the filter screen plate 8, and a backflush valve 9 is provided on the backflush pipe 10. A buffer bin outlet valve 11 is provided on the exhaust pipe 13 between the backflush pipe 10 and the exhaust Tesla valve structure 12. A buffer bin feed valve 3 is provided on the feed pipe 2. The top of the partition 4 is fixed on the top plate of the buffer bin 7, and the front and rear sides of the partition 4 are fixed on the inner wall of the buffer bin 7. The lower end surface of the partition 4 is higher than the feed end of the return pipe 5. The return pipe 5 is arranged obliquely downward from the feed end to the discharge end to facilitate the return of the liquid material or the mixture of liquid and solid in the buffer bin 7 to the reactor.

[0016] The back-blowing valve 9 is normally closed. When the filter screen plate 8 or the return material Tesla valve structure 6 is blocked, the buffer bin feed valve 3 and the buffer bin air outlet valve 11 are closed, the back-blowing valve 9 is opened, the filter screen plate 8 is purged and cleaned, and the return material Tesla valve structure 6 is unblocked.

[0017] The filter screen plate 8 is fixed at the gas outlet of the buffer bin 7. The filter screen plate 8 can effectively filter the solid products entrained in the gas and reduce the problem of blockage of the rear device.

[0018] The exhaust Tesla valve structure 12 is fixed behind the buffer bin outlet valve 11, but the existence of the filter screen plate 8 reduces the exhaust efficiency. The special structure of the Tesla valve is used to accelerate the gas flow rate and improve the exhaust speed.

[0019] The return material Tesla valve structure 6 disposed at the bottom of the buffer bin 7 utilizes the characteristics of the Tesla valve to achieve one-way rapid return of materials and reduce material residue. At the same time, the material will not enter the buffer bin 7 through the return material Tesla valve structure 6, thereby solving the problem of material and product waste.

[0020] When in use, open the buffer bin feed valve 3, and then the gaseous material containing reactants and products enters the device from the reactor exhaust port 1. After entering the device, it is buffered and blocked by the partition 4, and gas-liquid and gas-solid separation is performed inside the buffer bin 7. The gas enters the filter screen plate 8 from the top of the buffer bin, and then enters the exhaust Tesla valve structure 12, and completes the final exhaust from the exhaust pipe 13 outlet; liquid and solid enter the return material Tesla valve structure 6 from the bottom of the buffer bin 7, and finally flow back to the reactor exhaust port 1. When the pressure difference before and after the outlet of the buffer bin 7 is too large, it means that the filter screen plate 8 is blocked and backwashing is required. At this time, close the buffer bin feed valve 3 and the buffer bin outlet valve 11, open the backwash valve 9, and inject nitrogen from the backwash pipe 10. When the pressure in the reactor rises, the backwashing can be stopped and the exhaust operation can be performed again.

[0021] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0022] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A reactor exhaust device based on a Tesla valve, characterized in that: It includes a buffer bin connected to the exhaust port of the reactor, a feed port and an exhaust port are provided on the top of the buffer bin, a feed pipe is provided at the feed port, an exhaust pipe is provided at the exhaust port, the feed pipe and the exhaust pipe are separated by a partition, a return pipe is provided at the bottom of the buffer bin, the discharge end of the return pipe is connected in parallel with the feed end of the feed pipe, the feed end of the feed pipe is connected to the exhaust port of the reactor, and Tesla valve structures are provided on the exhaust pipe and the return pipe.

2. The exhaust device for a reactor based on a Tesla valve according to claim 1, characterized in that: A filter screen plate is provided at the air outlet of the buffer bin, and the Tesla valve structure of the exhaust pipe is located at the air outlet of the exhaust pipe.

3. The exhaust device for a reactor based on a Tesla valve according to claim 2, characterized in that: A back-blowing pipe is provided on the branch of the exhaust pipe behind the filter screen plate, a back-blowing valve is provided on the back-blowing pipe, and a buffer bin air outlet valve is provided on the exhaust pipe between the back-blowing pipe and the Tesla valve structure.

4. The exhaust device for a reactor based on a Tesla valve according to claim 1, characterized in that: A buffer bin feed valve is provided on the feed pipeline.

5. The exhaust device for a reactor based on a Tesla valve according to claim 1, characterized in that: The top of the partition is fixed on the top plate of the buffer bin, the front and rear sides of the partition are fixed on the inner wall of the buffer bin, and the lower end surface of the partition is higher than the feed end of the return pipe.

6. The exhaust device for a reactor based on a Tesla valve according to claim 1, characterized in that: The return pipe is arranged obliquely downward from the feed end to the discharge end.

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