Equipment for realizing switching between high-temperature reactor and low-temperature reactor

Abstract

The utility model relates to the field of experimental equipment, and discloses equipment for switching high and low temperature reactors, which comprises a first test tube, a second test tube arranged on the right side of the first test tube, a heat insulation sleeve sleeved on the outer wall of the first test tube, a heat preservation sleeve sleeved on the outer wall of the second test tube, and catalysts arranged at the bottoms of the inner sides of the first test tube and the second test tube. A first reaction tube and a second reaction tube are fixedly inserted into the inner side walls of the first test tube and the second test tube respectively, a refrigerator is arranged on the outer side of the first test tube, the output end of the refrigerator is fixedly communicated with one end of a first pipeline, and a first piston is arranged in an upper opening of the first reaction tube. The device is simultaneously provided with two test tubes and two reaction tubes, so that parallelism experiment research can be carried out, and the experiment efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment, specifically a device for switching between high and low temperature reactors. Background Technology

[0002] In chemical reactions, temperature is one of the key factors affecting reaction rate, reaction direction and product quality. Therefore, precise control of reaction temperature is an important prerequisite for ensuring the smooth progress of chemical reactions and obtaining high-quality products.

[0003] In chemical research and industrial production, it is often necessary to conduct parallel experiments or experiments under different temperature conditions to compare the results of reactions under different conditions. Currently, a single experimental device can often only conduct experiments under a single condition or different temperature conditions, which is difficult to meet the needs of parallel experiments or experiments under different temperatures. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a device for switching between high and low temperature reactors.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A device for switching between high and low temperature reactors includes a test tube 1, a test tube 2 located on the right side of the test tube 1, a heat insulation sleeve fitted over the outer wall of the test tube 1, and a thermal insulation sleeve fitted over the outer wall of the test tube 2. Catalysts are located at the bottom inner sides of both the test tubes 1 and 2. Reaction tubes 1 and 2 are respectively fixedly inserted into the inner walls of the test tubes 1 and 2. A cooler is installed on the outside of the test tube 1, with its output end fixedly connected to one end of a pipeline 1. A piston 1 is installed inside the upper opening of the reaction tube 1, and the other end of the pipeline 1 passes through the piston 1 and extends to the bottom inner side of the reaction tube 1. A valve 1 is installed on the pipeline 1. A heater is installed on the outside of the test tube 2, and heating wires are fixedly installed on the inner wall of the thermal insulation sleeve. The heating wires are distributed close to and surrounding the outer wall of the test tube 2. The heater is electrically connected to the heating wires. One end of pipe 2 is fixedly connected to the input end of the refrigerator. Pipe 2 is installed in the upper opening of pipe 2. One end of pipe 3 passes through piston 2 and extends to the bottom of the inner side of pipe 2. The other end of pipe 2 is connected to the other end of pipe 3. Valve 2 is installed on pipe 2 and valve 3 is installed on pipe 3. The connection between pipe 2 and pipe 3 is fixedly connected to one end of the intake pipe. The other end of the intake pipe is connected to the raw material gas. One end of pipe 4 passes through piston 1 and enters the interior of pipe 1. One end of pipe 5 passes through piston 2 and enters the interior of pipe 2. The other ends of pipe 4 and pipe 5 are both connected to the exhaust pipe. Valve 4 and pressure relief valve are installed on pipe 4 and pipe 5. The pressure relief valve is located at the right end of valve 4. Valve 5 is installed at the end of the exhaust pipe.

[0007] One end of the intake pipe is fixedly connected to pipe six, and the other end of pipe six is ​​connected to nitrogen. Pipe six is ​​installed with valve six and a check valve in sequence. The check valve is connected to the intake pipe, and the outlet of the check valve faces the intake pipe. The intake pipe is installed with pressure reducing valve, filter, start valve, pressure converter, needle valve and flow meter in sequence from left to right. The connection between pipe six and the intake pipe is located between pressure reducing valve and filter.

[0008] The beneficial effects of this utility model are:

[0009] This invention, through the combination of a heater and a cooler, can easily achieve switching between low temperature and high operating conditions, meeting the experimental needs of different temperatures.

[0010] The equipment is equipped with two test tubes and a reaction tube, which allows for parallel experimental studies, improving experimental efficiency and accuracy.

[0011] The equipment has a wide operating temperature range and is suitable for experimental research on a variety of chemical reactions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the air intake pipe of this utility model.

[0014] The reference numerals in all the attached drawings are as follows: 1. Test tube one; 2. Insulation sleeve; 3. Test tube two; 4. Thermal insulation sleeve; 5. Catalyst; 6. Reaction tube one; 7. Reaction tube two; 8. Refrigerator; 9. Pipeline one; 10. Valve one; 11. Heater; 12. Heating wire; 13. Pipeline two; 14. Pipeline three; 15. Valve two; 16. Valve three; 17. Inlet pipe; 18. Pipeline four; 19. Pipeline five; 20. Valve four; 21. Pressure relief valve; 22. Exhaust pipe; 23. Valve five; 24. Pipeline six; 25. Valve six; 26. Check valve; 27. Pressure reducing valve; 28. Filter; 29. ​​Starting valve; 30. Pressure converter; 31. Needle valve; 32. Flow meter; 33. Piston one; 34. Piston two. Detailed Implementation

[0015] like Figure 1-2As shown: A device for switching between high and low temperature reactors includes a test tube 1, a test tube 2 3 on the right side of the test tube 1, a heat insulation sleeve 2 fitted onto the outer wall of the test tube 1, a heat insulation sleeve 4 fitted onto the outer wall of the test tube 2 3, a catalyst 5 at the bottom inner side of the test tube 1 and the test tube 2 3, a reaction tube 6 and a reaction tube 7 respectively fixedly inserted into the inner walls of the test tube 1 and the test tube 2 3, a cooler 8 is installed on the outside of the test tube 1, the output end of the cooler 8 is fixedly connected to one end of a pipe 9, a piston 33 is installed in the upper opening of the reaction tube 6, the other end of the pipe 9 passes through the piston 33 and extends to the bottom inner side of the reaction tube 6, a valve 10 is installed on the pipe 9, a heater 11 is installed on the outside of the test tube 2 3, an electric heating wire 12 is fixedly installed on the inner wall of the heat insulation sleeve 4, the electric heating wire 12 is attached to and surrounds the outer wall of the test tube 2 3, the heater 11 is electrically connected to the electric heating wire 12, and one end of the pipe 2 13 is connected to the cooler. The input end of 8 is fixedly connected. A piston 34 is installed in the upper opening of the reaction tube 7. One end of the pipe 14 passes through the piston 34 and extends to the bottom of the inner side of the reaction tube 7. The other end of the pipe 13 is connected to the other end of the pipe 14. A valve 15 is installed on the pipe 13 and a valve 16 is installed on the pipe 14. The connection between the pipe 13 and the pipe 14 is fixedly connected to one end of the intake pipe 17. The other end of the intake pipe 17 is connected to the raw material gas. One end of the pipe 18 passes through the piston 33 and enters the interior of the reaction tube 6. One end of the pipe 19 passes through the piston 34 and enters the interior of the reaction tube 7. The other ends of the pipes 18 and 19 are connected to the exhaust pipe 22. A valve 20 and a pressure relief valve 21 are installed on both the pipes 18 and 19. The pressure relief valve 21 is located at the right end of the valve 20. A valve 23 is installed at the end of the exhaust pipe 22.

[0016] The intake pipe 17 is fixedly connected to one end of the sixth pipe 24, and the other end of the sixth pipe 24 is connected to nitrogen. The sixth valve 25 and the one-way valve 26 are installed in sequence on the sixth pipe 24. The one-way valve 26 is connected to the intake pipe 17, and the outlet of the one-way valve 26 faces the intake pipe 17. The intake pipe 17 is installed from left to right with the following components: pressure reducing valve 27, filter 28, start valve 29, pressure converter 30, needle valve 31 and flow meter 32. The connection between the sixth pipe 24 and the intake pipe 17 is located between the pressure reducing valve 27 and the filter 28.

[0017] The cooler 8 is a prior art device, and the cooler 8 is a gas refrigeration device, such as a gas refrigeration machine or other gas refrigeration device.

[0018] First, based on the experimental requirements, determine whether test tube 1 and test tube 2 need to be subjected to high or low temperature treatment.

[0019] If low-temperature treatment is required, open valve 10 and valve 25, and close valve 316. The raw material gas and nitrogen enter the cooler 8 through pipeline 213. Start the cooler 8, and the cooler 8 will cool the raw material gas. The cooled raw material gas enters the reaction tube 6 through pipeline 19 to carry out the low-temperature reaction experiment.

[0020] If high-temperature treatment is required, close valve 10 and valve 25, open valve 316, and the raw material gas and nitrogen enter the reaction tube 27 through pipeline 314. Start heater 11 and heating wire 12. Heater 11 and heating wire 12 work together to heat the reactants in test tube 23 through heat conduction, and carry out high-temperature reaction experiments.

[0021] Based on the above principle, parallel experiments at high and low temperatures can also be conducted simultaneously.

[0022] Raw material gas supply stage:

[0023] Open the start valve 29, and the raw material gas and nitrogen enter through the inlet pipe 17. They pass through the pressure reducing valve 27 to reduce the gas pressure, the filter 28 to filter impurities, the pressure converter 30 to adjust according to pressure changes, the needle valve 31 to fine-tune the flow rate, and the flow meter 32 to measure the flow rate, ensuring that the raw material gas enters the reaction tube in a stable and pure state.

[0024] As needed, nitrogen can be injected into the inlet pipe 17 through pipe 6 24 to protect the reaction system or adjust the concentration of the raw material gas. Nitrogen enters through valve 6 25 and check valve 26. Check valve 26 ensures that nitrogen can only flow in one direction to avoid backflow.

[0025] In test tube 1 and test tube 2, the reactants react with the raw gas in reaction tube 6 and reaction tube 2 under the action of catalyst 5.

[0026] During the reaction, the generated gas enters the exhaust pipe 22 through pipe 18 and pipe 19 and is eventually discharged from the system. The pressure relief valve 21 is used to automatically relieve pressure when the system pressure is too high, thus protecting the equipment.

[0027] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A device for switching between high and low temperature reactors, characterized in that, The utility model provides a kind of reaction tube, including test tube one (1), the right side of test tube one (1) has test tube two (3), the outer wall of test tube one (1) is sleeved with heat insulation sleeve (2), the outer wall of test tube two (3) is sleeved with heat preservation sleeve (4), the inside bottom of test tube one (1) and test tube two (3) has catalyst (5), the inside wall of test tube one (1) and test tube two (3) is fixed respectively with the insertion reaction tube one (6) and reaction tube two (7), the outside of test tube one (1) is provided with refrigerator (8), the output end of refrigerator (8) is fixed with one end of communication pipeline one (9), the upper opening of reaction tube one (6) is provided with piston one (33), the other end of pipeline one (9) is penetrated piston one (33) and extends to the inside bottom of reaction tube one (6), valve one (10) is installed on pipeline one (9), the outside of test tube two (3) is provided with heater (11), the inner wall of heat preservation sleeve (4) is fixed with electric heating wire (12), electric heating wire (12) is attached and surrounds the distribution of test tube two (3) outer wall, heater (11) is electrically connected with electric heating wire (12), one end of pipeline two (13) is fixed with the input end of refrigerator (8) communication, the upper opening of reaction tube two (7) is provided with piston two (34), one end of pipeline three (14) is penetrated piston two (34) and extends to the inside bottom of reaction tube two (7), the other end of pipeline two (13) is communicated with the other end of pipeline three (14), valve two (15) is installed on pipeline two (13), valve three (16) is installed on pipeline three (14), one end of communication inlet pipeline (17) is fixed with the communication of pipeline two (13) and pipeline three (14), the other end of inlet pipeline (17) is connected with raw gas, one end of pipeline four (18) is penetrated piston one (33) and enters the inside of reaction tube one (6), one end of pipeline five (19) is penetrated piston two (34) and enters the inside of reaction tube two (7), the other end of pipeline four (18) and pipeline five (19) are all communicated with exhaust pipeline (22), valve four (20) and pressure relief valve (21) are all installed on pipeline four (18) and pipeline five (19), pressure relief valve (21) is located in the right end of valve four (20), valve five (23) is installed on the end of exhaust pipeline (22).

2. The apparatus for implementing high-low temperature reactor switching according to claim 1, wherein, One end of communication pipeline six (24) is fixed with inlet pipeline (17), the other end of pipeline six (24) is connected with nitrogen, valve six (25) and check valve (26) are installed on pipeline six (24) in sequence, check valve (26) is communicated with inlet pipeline (17), the outlet of check valve (26) faces inlet pipeline (17), pressure reducing valve (27), filter (28), starting valve (29), pressure transducer (30), needle valve (31) and flowmeter (32) are installed on inlet pipeline (17) from left to right direction in sequence, the communication of pipeline six (24) and inlet pipeline (17) is located between pressure reducing valve (27) and filter (28).

Images