An air intake system for potassium superoxide production

Abstract

The present invention belongs to the field of potassium superoxide powder preparation, and specifically provides an air intake system for potassium superoxide production, including a compressor, an air intake end of the compressor is connected to the atmosphere, an air outlet end of the compressor is connected to a gas membrane separation device, a first air outlet of the gas membrane separation device is connected to a gas heating device, an air outlet end of the gas heating device is connected to an oxygen inlet of a reaction tank, a second air outlet of the gas membrane separation device is connected to an expander, a liquid outlet end of the expander is connected to a molecular sieve adsorber, a first liquid outlet of the molecular sieve adsorber is connected to the atmosphere, a second liquid outlet of the molecular sieve adsorber is connected to a gas mixing chamber, an intelligent temperature controller is provided in the gas mixing chamber, an air outlet end of the gas mixing chamber is connected to a reaction tank, a powder feed port is provided at the top of the reaction tank, the powder feed port is connected to a potassium supply device, and a powder discharge port is provided at the bottom of the reaction tank. The above-mentioned arrangement improves the purity of potassium superoxide by reacting oxygen with potassium, and slows down the severity of the reaction by argon gas.

Description

Technical Field

[0001] The invention relates to the field of potassium superoxide powder preparation, and in particular to an air intake system for potassium superoxide production. Background Art

[0002] Potassium superoxide (KO 2 ), a primary oxidant, can be used as an oxygen generator in aerospace, submarine technology, mine emergency and other fields. In a closed environment, the carbon dioxide and water produced by human breathing can react with potassium superoxide to produce oxygen necessary for human survival.

[0003] In the traditional preparation process of potassium superoxide, potassium hydroxide and hydrogen peroxide are generally used as raw materials for reaction. However, the potassium superoxide powder produced by the above preparation method has low purity, so people have adopted a method of preparing potassium superoxide by reacting metallic potassium and oxygen under high temperature environment.

[0004] Since metallic potassium is a metal with very active chemical properties, it reacts violently with oxygen and releases a large amount of heat. If the reaction between the two cannot be properly controlled, the reaction tank will be damaged and even an explosion may occur. Summary of the invention

[0005] In view of the above-mentioned defects, the present invention provides an air intake system for potassium superoxide production, which can reduce the intensity of the reaction while ensuring a high purity of potassium superoxide, and is safer and more reliable.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an air intake system for potassium superoxide production, comprising a compressor, wherein the air intake end of the compressor is provided with an air filter and an air drying device connected to the atmosphere, the air outlet end of the compressor is connected to the air intake end of a gas membrane separation device, the first air outlet of the gas membrane separation device is connected to the air intake end of a gas heating device, the air outlet end of the gas heating device is connected to the oxygen inlet of a reaction tank, the second air outlet of the gas membrane separation device is connected to the air intake end of an expander, the liquid outlet end of the expander is connected to a molecular sieve adsorber, the first air outlet of the molecular sieve adsorber is connected to the atmosphere, and the second air outlet of the molecular sieve adsorber is connected to the A first air inlet end is connected to a gas mixing chamber, an intelligent temperature controller is arranged in the gas mixing chamber, an air outlet end of the gas mixing chamber is connected to an inert gas inlet arranged at the top of one end of the reaction tank, an inert gas outlet is arranged at the bottom of the other end of the reaction tank, an air suction fan is arranged at the inert gas outlet, a powder filter is arranged on the side of the air suction fan close to the inside of the reaction tank, a three-way regulating valve is arranged on the pipeline connected to the inert gas outlet, one end of the three-way regulating valve is connected to the second air inlet end of the gas mixing chamber, and the other end of the three-way regulating valve is connected to the atmosphere, a powder feed port is arranged on the top of the reaction tank, the powder feed port is connected to a potassium supply device, and a powder discharge port is arranged at the bottom of the reaction tank.

[0007] As a further improvement of the present invention, a powder nozzle is arranged at the bottom of the powder feed port.

[0008] As a further improvement of the present invention, an oxygen pipe connected to an oxygen inlet is arranged in the middle of the reaction tank, and a plurality of oxygen nozzles are arranged on the oxygen pipe.

[0009] As a further improvement of the present invention, the oxygen nozzle and the powder nozzle are arranged opposite to each other.

[0010] As a further improvement of the present invention, the oxygen pipe is arranged along the inner circumference of the reaction tank.

[0011] As a further improvement of the present invention, the top of the powder filter in the reaction tank is fixedly connected to an electric push rod, and the output end of the electric push rod is downwardly provided with a push plate fixedly connected thereto.

[0012] As a further improvement of the present invention, the electric push rod is fixedly connected to a heat-insulating chamber arranged inside the reaction tank.

[0013] As a further improvement of the present invention, a conveying auger is provided at the powder discharge port and connected to the storage box.

[0014] Beneficial effects of the present invention:

[0015] By setting up an air intake system for potassium superoxide production, oxygen and argon in the air can be separated, and the separated oxygen is used to react with liquid potassium to produce potassium superoxide with higher purity. Since high-purity oxygen and liquid potassium react violently and release a large amount of heat, low-temperature inert gas argon is introduced into the reaction tank to slow down the reaction of oxygen and argon, and at the same time absorb the heat in the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric diagram of an air intake system for producing potassium superoxide according to the present invention;

[0017] Figure 2 This is a schematic diagram of the interior of the reaction tank;

[0018] Figure 3 yes Figure 2 A is an enlarged schematic diagram.

[0019] In the figure: 1-air filter, 2-second pipeline, 3-air drying device, 4-first pipeline, 5-compressor, 6-third pipeline, 7-gas membrane separation device, 8-fourth pipeline, 9-gas heating device, 10-fifth pipeline, 11-sixth pipeline, 12-expander, 13-seventh pipeline, 14-molecular sieve adsorber, 15-eighth pipeline, 16-ninth pipeline, 17-gas mixing chamber, 18-tenth pipeline, 19-eleventh pipeline Road, 20-three-way regulating valve, 21-twelfth pipeline, 22-reaction tank, 220-oxygen pipe, 221-oxygen nozzle, 222-inert gas inlet, 223-powder nozzle, 224-powder discharge port, 225-insulation chamber, 23-powder supply pipeline, 24-powder supply equipment, 25-conveying auger, 26-storage box, 27-electric push rod, 28-push plate, 29-powder filter, 30-suction fan, 31-inert gas outlet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific examples described herein are only used to explain the present invention and are not intended to limit the present invention. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the present invention. In addition, in all embodiments, the same figure numerals represent the same elements.

[0021] See also Figure 1 , Figure 2 , Figure 3The present invention provides an air intake system for potassium superoxide production, including a compressor 5, a first pipeline 4 is provided at the air intake end of the compressor 5, the first pipeline 4 is connected to the air outlet end of the air drying device 3, a second pipeline 2 is provided at the air intake end of the air drying device 3, and the second pipeline 2 is connected to the atmosphere. An air filter 1 is provided at the end of the second pipeline 2.

[0022] As a further explanation of this embodiment, the air entering the compressor 5 can be filtered and dried by the air filter 1 and the air drying device 3 to ensure the cleanliness of the gas entering the compressor 5.

[0023] A third pipeline 6 is provided at the air outlet end of the compressor 5, and the third pipeline 6 is connected to the air inlet end of the gas membrane separation device 7. The gas membrane separation device 7 is provided with two air outlets. A fourth pipeline 8 is provided at the first air outlet of the gas membrane separation device 7, and the fourth pipeline 8 is connected to the air inlet end of the gas heating device 9. A fifth pipeline 10 is provided at the air outlet end of the gas heating device 9, and the fifth pipeline 10 is connected to the oxygen inlet of the reaction tank 22.

[0024] As a further explanation of this embodiment, the gas compressed by the compressor 5 enters the gas membrane separation device 7. The gas membrane separation device 7 is provided with a separation membrane, which can block other gases behind the membrane and only allow oxygen to pass through. The oxygen separated from the air enters the reaction tank 22 for reaction.

[0025] A sixth pipeline 11 is provided at the second gas outlet of the gas membrane separation device 7, and the sixth pipeline 11 is connected to the gas inlet end of the expander 12. A seventh pipeline 13 is provided at the liquid outlet end of the expander 12, and the seventh pipeline 13 is connected to the gas inlet end of the molecular sieve adsorber 14. The molecular sieve adsorber 14 is provided with two gas outlets, and an eighth pipeline 15 is provided at the first gas outlet of the molecular sieve adsorber 14, and the eighth pipeline 15 is connected to the atmosphere. A ninth pipeline 16 is provided at the second gas outlet of the molecular sieve, and the ninth pipeline 16 is connected to the first gas inlet end of the gas mixing chamber 17.

[0026] As a further explanation of this embodiment, the gas discharged from the second gas outlet of the gas membrane separation device 7 is deoxygenated air. The air after removing oxygen is condensed into liquid through the expander 12. The deoxygenated liquid air enters the molecular sieve adsorber 14 from the expander 12. The molecular sieve adsorber 14 separates liquid argon from other liquid gases. The other liquid gases are discharged into the atmosphere from the first outlet of the molecular sieve adsorber 14 and immediately turn into gas when heated and re-enter the atmosphere, while the liquid argon enters the mixing chamber 17.

[0027] An intelligent temperature controller is provided in the gas mixing chamber 17, and a tenth pipeline 18 is provided at the gas outlet end of the gas mixing chamber 17, and the tenth pipeline 18 is connected to the inert gas inlet 222 of the reaction tank 22. The reaction tank 22 is provided with an inert gas outlet 31, and an eleventh pipeline 19 is provided at the inert gas outlet 31, and a three-way regulating valve 20 is provided on the eleventh pipeline 19. A twelfth pipeline 21 is provided at one end of the three-way regulating valve 20, and the twelfth pipeline 21 is connected to the atmosphere. The other end of the three-way regulating valve 20 is connected to the second gas inlet end of the gas mixing chamber 17.

[0028] As a further explanation of this embodiment, the liquid argon gas entering the mixing chamber 17 from the molecular sieve adsorber 14 is vaporized into a low-temperature gaseous gas by the intelligent temperature controller in the mixing chamber 17, and the low-temperature gaseous argon gas is introduced into the reaction tank 22, and then discharged from the inert gas outlet 31 of the reaction tank 22, and enters the mixing chamber 17 again, and is mixed with the liquid argon gas introduced from the molecular sieve adsorber 14, and then becomes a low-temperature gaseous gas together, and is introduced into the reaction tank 22 again. When the generated argon content is too much, the argon gas is discharged through the twelfth pipeline 21 to ensure that the pressure in the reaction tank 22 is normal.

[0029] A powder feed port is provided at the top of the reaction tank 22, and one end of the powder feed port is connected to the powder supply device 24 through the powder supply pipeline 23. The powder feed port passes through the top of the reaction tank 22 and is connected to the inside of the reaction tank 22. A powder nozzle 223 is provided at the end of the powder feed port, and the powder nozzle 223 is arranged downward. An oxygen pipe 220 is provided in the middle of the reaction tank 22, and the oxygen pipe 220 is connected to the oxygen inlet of the reaction tank 22. The oxygen pipe 220 is arranged in a ring around the inside of the reaction tank 22, and a plurality of oxygen nozzles 221 are arranged on the oxygen pipe 220, and the oxygen nozzles 221 are opposite to the powder nozzles 223 and are arranged upward.

[0030] An inert gas inlet 222 is provided on one side of the upper part of the reaction tank 22, and an inert gas outlet 31 is provided on the other side of the lower part of the reaction tank 22. An air suction fan 30 is provided at the inert gas outlet 31, and a powder filter 29 is provided on one side of the air suction fan 30 close to the inside of the reaction tank 22, so as to ensure that potassium superoxide powder does not enter the inert gas inlet 222 connecting pipeline. An insulating chamber 225 is provided on the top of the powder filter 29, and an electric push rod 27 is fixed in the insulating chamber 225. The output end of the electric push rod 27 is downwardly arranged, and a push plate 28 is fixedly connected, and the push plate 28 acts on the powder filter 29.

[0031] A powder discharge port 224 is provided on one side of the bottom of the reaction tank 22 near the inert gas outlet 31. The powder discharge port 224 is arranged in a bucket shape. A conveying auger 25 is provided at the bottom of the powder discharge port 224. The feed port of the conveying auger 25 is connected to the powder discharge port 224, and the discharge port of the conveying auger 25 is connected to the storage box 26.

[0032] As a further explanation of this embodiment, by setting relative oxygen nozzles 221 and powder nozzles 223, the mixing degree of oxygen and liquid potassium can be further ensured, and the production efficiency of potassium superoxide can be improved. At the same time, the suction fan 30 set at the inert gas outlet 31 can ensure that the argon gas can return to the mixing chamber 17 as much as possible to prevent leakage from the discharge port. The electric push rod 27 can ensure that the powder can flow down normally and will not be blocked at the powder filter 29.

[0033] The working principle and use process of this embodiment:

[0034] The compressor 5 is started to absorb air. The air enters the compressor 5 after being filtered and dried by the air filter 1 and the air drying device 3. The air is compressed by the compressor 5 and then enters the gas membrane separation device 7. The gas membrane separation device 7 separates oxygen from other gases. The oxygen therein is passed into the reaction tank 22 and reacts with the liquid potassium entering the reaction tank 22 from the potassium supply device to generate potassium superoxide powder, which is then transported to the storage box 26 through the conveying auger 25.

[0035] At the same time, other gases separated by the gas membrane separation device 7 are introduced into the expander 12, condensed into liquid by the expander 12, and then the liquid argon is separated by the molecular sieve adsorber 14. The separated liquid argon enters the gas mixing chamber 17, is converted into gas again by the intelligent temperature controller, and is introduced into the reaction tank 22 to alleviate the violent reaction between liquid argon and oxygen, and to cool the inside of the reaction tank 22 at the same time.

[0036] Since the argon content in the air is relatively low, the argon gas entering the reaction tank 22 returns to the mixing chamber 17 through the inert gas outlet. The argon gas returning to the mixing chamber 17 absorbs the heat released when potassium superoxide is generated, and its own temperature is further increased, and the liquid argon gas introduced into the mixing chamber 17 is heated together with the intelligent temperature controller.

[0037] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above implementation measures. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An air intake system for potassium superoxide production, characterized in that: The invention comprises a compressor (5), wherein an air inlet end of the compressor (5) is provided with an air filter (1) and an air drying device (3) and is connected to the atmosphere, an air outlet end of the compressor (5) is connected to an air inlet end of a gas membrane separation device (7), a first air outlet of the gas membrane separation device (7) is connected to an air inlet end of a gas heating device (9), an air outlet end of the gas heating device (9) is connected to an oxygen inlet of a reaction tank (22), a second air outlet of the gas membrane separation device (7) is connected to an air inlet end of an expander (12), a liquid outlet end of the expander (12) is connected to a molecular sieve adsorber (14), a first air outlet of the molecular sieve adsorber (14) is connected to the atmosphere, a second air outlet of the molecular sieve adsorber (14) is connected to a first air inlet end of a gas mixing chamber (17), and an intelligent A temperature controller, the gas outlet end of the gas mixing chamber (17) is connected to an inert gas inlet (222) provided at the top of one end of a reaction tank (22), the bottom of the other end of the reaction tank (22) is provided with an inert gas outlet (31), an air suction fan (30) is provided at the inert gas outlet (31), a powder filter (29) is provided on the side of the air suction fan (30) close to the inside of the reaction tank (22), a three-way regulating valve (20) is provided on the pipeline connected to the inert gas outlet (31), one end of the three-way regulating valve (20) is connected to the second gas inlet end of the gas mixing chamber (17), and the other end of the three-way regulating valve (20) is connected to the atmosphere, a powder feed port is provided at the top of the reaction tank (22), the powder feed port is connected to a potassium supply device, and a powder discharge port (224) is provided at the bottom of the reaction tank (22).

2. The air intake system for potassium superoxide production according to claim 1, characterized in that: A powder nozzle (223) is arranged at the bottom of the powder feed opening.

3. The air intake system for potassium superoxide production according to claim 2, characterized in that: An oxygen pipe (220) connected to an oxygen inlet is arranged in the middle of the reaction tank (22), and a plurality of oxygen nozzles (221) are arranged on the oxygen pipe (220).

4. The air intake system for producing potassium superoxide according to claim 3, characterized in that: The oxygen spray head (221) and the powder spray head (223) are arranged opposite to each other.

5. The air intake system for producing potassium superoxide according to claim 3, characterized in that: The oxygen pipe (220) is arranged along the inner circumference of the reaction tank (22).

6. The air intake system for producing potassium superoxide according to claim 1, characterized in that: The top of the powder filter screen (29) in the reaction tank (22) is fixedly connected to an electric push rod (27), and the output end of the electric push rod (27) is downwardly provided with a push plate (28) fixedly connected thereto.

7. The air intake system for producing potassium superoxide according to claim 6, characterized in that: The electric push rod (27) is fixedly connected to a heat-insulating chamber (225) provided inside the reaction tank (22).

8. The air intake system for producing potassium superoxide according to claim 1, characterized in that: The powder discharge port (224) is provided with a conveying auger (25) connected to a material storage box (26).

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