Biochemical engineering gas separation and purification device for laboratory

Abstract

The invention discloses a biochemical engineering gas separation and purification device for a laboratory, and relates to the technical field of separation and purification, the biochemical engineering gas separation and purification device comprises a reaction box and a base, the base is fixedly connected with the reaction box, and the upper part of the reaction box is provided with a liquid inlet for adding a solvent dissolved with target gas into the reaction box; a gas inlet pipe for feeding mixed gas into the reaction box is arranged on one side of the reaction box, a one-way valve for preventing a solvent added into the reaction box from flowing out is arranged at the joint of the gas inlet pipe and the one-way valve, and a stirring mechanism for enabling the mixed gas and the solvent to fully react is arranged in the reaction box; when mixed gas reacts with a solvent added into the reaction box, the motor is started to drive the stirring mechanism and the cleaning mechanism to operate at the same time, so that the mixed gas is in full contact with the solvent, the concentration in the reaction box can be kept consistent, residues can be prevented from being adhered to the interior of the reaction box, and the service life of the reaction box is prolonged. The separation purity of a target product can be conveniently improved.

Description

Technical Field

[0001] The invention relates to the technical field of separation and purification, and in particular to a biochemical gas separation and purification device for laboratory use. Background Art

[0002] In laboratory biochemical research, the purity and quality of gases have a crucial impact on experimental results. High-purity gases can ensure the accuracy and reliability of experimental data, improve experimental efficiency, and reduce experimental errors. Therefore, the research and development and application of laboratory biochemical gas separation and purification equipment are particularly important. Chemical reaction separation and purification technology utilizes the differences in chemical reaction properties between components in a gas mixture to separate the target gas from other components through specific chemical reactions and further purify it.

[0003] After searching, the Chinese patent number CN211799799U discloses a laboratory biochemical gas separation and purification device, including an air inlet on the top of a condenser, a reflux upper pipe connected to the side of the condenser, a condenser fixedly installed on the top of a tower top tank, a bottom surface of the tower top tank is funnel-shaped and a liquid outlet is opened at the bottom, a tower body is fixedly connected to the bottom of the tower top tank, the liquid outlet is inserted into the opening at the top of the tower body, a tower kettle is fixedly connected to the bottom of the tower body, a lower liquid port is opened at the bottom of the tower kettle, a reflux lower pipe is connected to the side of the tower kettle, the reflux lower pipe is connected to the reflux upper pipe, a solvent is contained in the tower kettle, and a steam generator is connected to the side wall of the tower kettle; by arranging various components, a set of low-temperature distillation system suitable for laboratory research operations is formed, which has a simple structure, a reasonable process, low operation difficulty, and low energy consumption, while ensuring the purity and efficiency of separation and purification.

[0004] However, in the actual use of the above patent, it is difficult to evenly distribute the target gas in the solvent, to make the contact between the gas and the solvent more complete, to eliminate the concentration gradient of the gas in the solvent, and to keep the concentration of the reactants consistent in the entire reaction system, that is, it is difficult to improve the purity of the target product. Therefore, it is necessary to propose a laboratory biochemical gas separation and purification device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art that it is difficult to evenly distribute the target gas in the solvent, to make the contact between the gas and the solvent more complete, to eliminate the concentration gradient of the gas in the solvent, to keep the concentration of the reactants consistent in the entire reaction system, that is, to improve the purity of the target product, and to propose a laboratory biochemical gas separation and purification device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A biochemical gas separation and purification device for laboratory use, comprising a reaction box and a base, the base and the reaction box are fixedly connected, the upper part of the reaction box is provided with a liquid inlet for adding a solvent soluble in a target gas into the reaction box, one side of the reaction box is provided with an air inlet pipe for delivering a mixed gas into the reaction box, a one-way valve is provided at the connection between the air inlet pipe and the one-way valve for preventing the solvent added to the reaction box from flowing out, a stirring mechanism is provided inside the reaction box for allowing the mixed gas and the solvent to fully react, a cleaning mechanism is provided inside the reaction box for preventing residues from accumulating on the inner wall of the reaction box, a gas reflux pipe is provided on the side of the reaction box away from the air inlet pipe for reflowing and discharging the mixed gas after the reaction, a gas discharge pipe is provided on the side of the gas reflux pipe away from the reaction box for discharging a gas not containing the target gas, and a purity detector for detecting the concentration of the target gas is provided at the connection between the gas reflux pipe and the gas discharge pipe.

[0008] The above technical solution further includes:

[0009] The stirring mechanism includes a sliding rod arranged inside the reaction box, the sliding rod is slidably connected to the reaction box, a plurality of stirring rods for stirring are fixedly connected to the sliding rod, and the lower part of the sliding rod passes through the reaction box and extends to the upper part of the base;

[0010] Wherein, the stirring rods are arranged in multiple numbers and are evenly distributed, so as to facilitate a full reaction inside the reaction box.

[0011] The cleaning mechanism includes a threaded rod arranged inside the reaction box, the threaded rod and the reaction box are rotatably connected, the lower part of the threaded rod and the base are rotatably connected, the threaded rod is threadedly connected with a cleaning plate for cleaning the inner wall, the cleaning plate is slidably connected with a plurality of fixed rods, the upper part of the fixed rod is fixedly connected to the reaction box, and the lower part of the fixed rod is fixedly connected to the base.

[0012] A motor is fixedly mounted on the upper part of the base, a worm is arranged at the output end of the motor, the worm is rotationally connected to the base, and the worm is meshingly connected to a turbine.

[0013] The turbine is rotatably connected to the lower part of the reaction box. A first connecting plate is fixedly connected to one side of the turbine. The first connecting plate is rotatably connected to a second connecting plate. The second connecting plate is rotatably connected to a third connecting plate on a side away from the first connecting plate.

[0014] A bevel gear is fixedly connected to one side of the third connecting plate close to the turbine, the bevel gear is rotationally connected to the lower part of the reaction box, the bevel gear is meshingly connected to a bevel rack, and the bevel rack is fixedly connected to the slide rod.

[0015] The worm is fixedly connected to a first gear, the first gear is meshingly connected to a second gear, and both sides of the second gear are rotatably connected to the base;

[0016] Wherein, the two sides of the second gear are rotatably connected to the base so that the second gear can remain stable when rotating.

[0017] The second gear is slidably connected to a fixed plate, the fixed plate and the slide rod are fixedly connected, the fixed plate and the base are slidably connected, the lower part of the slide rod is rotatably connected to a fourth connecting plate, the upper part of the fourth connecting plate is fixedly connected to a first rack, the first rack is meshedly connected to a third gear, the third gear is fixedly connected to a first rotating shaft, and the first rotating shaft is rotatably connected to the base;

[0018] The fixing plate is slidably connected to the second gear, so that the second gear can rotate to drive the sliding rod to rotate through the fixing plate.

[0019] The first rotating shaft is fixedly connected with a first bevel gear, the first bevel gear is meshingly connected with a second bevel gear, and the second bevel gear is fixedly connected to the threaded rod.

[0020] An openable door is arranged on one side of the reaction box, and an observation window is provided on the door for observing the interior of the reaction box. A solvent discharge pipe for discharging the solvent after the reaction is arranged at the lower part of the reaction box, and a pump body is arranged at the connection between the solvent discharge pipe and the reaction box.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, when the mixed gas reacts with the solvent added inside the reaction box, the stirring mechanism and the cleaning mechanism are driven to operate simultaneously by starting the motor, so that the mixed gas and the solvent are fully contacted, and the concentration inside the reaction box can be kept consistent. At the same time, the residue is prevented from adhering to the inside of the reaction box, so as to improve the separation purity of the target product.

[0023] 2. In the present invention, after the mixed gas reacts, it will enter the gas reflux pipe. At this time, the purity detector will detect the gas after the reaction. When the detected gas still contains the target gas, the gas after the reaction will re-enter the interior of the reaction box for a secondary reaction. When the target gas is not detected, the gas after the reaction will be discharged from the gas exhaust pipe, so as to improve the separation effect of the mixed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a laboratory biochemical gas separation and purification device proposed by the present invention;

[0025] Figure 2 It is a schematic diagram of the first structure in the present invention;

[0026] Figure 3 It is a second structural schematic diagram of the present invention;

[0027] Figure 4 It is a schematic diagram of the third structure of the present invention;

[0028] Figure 5 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0030] In the figure: 1. reaction box; 2. base; 3. box door; 4. observation window; 5. liquid inlet; 6. gas reflux pipe; 7. purity detector; 8. gas discharge pipe; 9. pump body; 10. solvent discharge pipe; 11. air inlet pipe; 12. one-way valve; 13. threaded rod; 14. worm; 15. stirring rod; 16. fixed rod; 17. cleaning plate; 18. motor; 19. first gear; 20. second gear; 21. sliding rod; 22. bevel rack; 23. turbine; 24. first connecting plate; 25. second connecting plate; 26. third connecting plate; 27. fourth connecting plate; 28. fixed plate; 29. ​​first rack; 30. third gear; 31. first rotating shaft; 32. first bevel gear; 33. second bevel gear; 34. bevel gear. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1 - Figure 6As shown, a biochemical gas separation and purification device for laboratory use comprises a reaction box 1 and a base 2, wherein the base 2 and the reaction box 1 are fixedly connected, a liquid inlet 5 for adding a solvent compatible with a target gas into the reaction box 1 is arranged on the upper part of the reaction box 1, an air inlet pipe 11 for delivering a mixed gas into the reaction box 1 is arranged on one side of the reaction box 1, a one-way valve 12 for preventing the solvent added into the reaction box 1 from flowing out is arranged at the connection between the air inlet pipe 11 and the one-way valve 12, a stirring mechanism for making the mixed gas and the solvent fully react is arranged inside the reaction box 1, a cleaning mechanism for preventing residues from accumulating on the inner wall of the reaction box 1 is arranged inside the reaction box 1, a gas reflux pipe 6 for refluxing and discharging the mixed gas after the reaction is arranged on the side of the reaction box 1 away from the air inlet pipe 11, a gas discharge pipe 8 for discharging a gas not containing the target gas is arranged on the side of the gas reflux pipe 6 away from the reaction box 1, and a purity detector 7 for detecting the concentration of the target gas is arranged at the connection between the gas reflux pipe 6 and the gas discharge pipe 8;

[0034] The stirring mechanism includes a slide bar 21 disposed inside the reaction box 1, the slide bar 21 is slidably connected to the reaction box 1, a plurality of stirring rods 15 for stirring are fixedly connected to the slide bar 21, and the lower portion of the slide bar 21 penetrates the reaction box 1 and extends to the upper portion of the base 2;

[0035] The cleaning mechanism includes a threaded rod 13 arranged inside the reaction box 1, the threaded rod 13 and the reaction box 1 are rotatably connected, the lower part of the threaded rod 13 and the base 2 are rotatably connected, the threaded rod 13 is threadedly connected with a cleaning plate 17 for cleaning the inner wall, the cleaning plate 17 is slidably connected with a plurality of fixed rods 16, the upper part of the fixed rod 16 and the reaction box 1 are fixedly connected, and the lower part of the fixed rod 16 and the base 2 are fixedly connected.

[0036] In this embodiment, when the mixed gas needs to be separated and purified, a solvent that is soluble in the target gas is added to the interior of the reaction box 1 through the liquid inlet 5. At this time, the mixed gas is sent into the interior of the reaction box 1 through the air inlet pipe 11 to react with the solvent. During the reaction, the stirring mechanism and the cleaning mechanism are operated at the same time, so that the slide bar 21 rotates. The rotation of the slide bar 21 drives the multiple stirring rods 15 that are fixedly connected to rotate. The rotation of the stirring rods 15 can stir the solvent in the reaction box 1, so that the solvent and the target gas can fully contact and react.

[0037] At the same time, the threaded rod 13 will rotate, and the rotation of the threaded rod 13 will cause the cleaning plate 17 connected by the thread to rise and fall on the threaded rod 13. The multiple fixed rods 16 to which the cleaning plate 17 is slidably connected are fixedly connected to the reaction box 1, which will keep the cleaning plate 17 stable when it rises and falls, that is, the cleaning plate 17 can clean the inside of the reaction box 1 when it rises and falls, preventing residues from sticking to the inner wall of the reaction box 1, thereby ensuring the purity of gas separation;

[0038] After separation, the reacted mixed gas will enter the interior of the gas reflux pipe 6. At this time, the purity detector 7 set at the connection between the gas reflux pipe 6 and the gas exhaust pipe 8 will detect the reacted mixed gas. When the purity detector 7 detects that the reacted mixed gas still contains the target gas, the reacted gas will re-enter the interior of the reaction box 1 for another reaction. When the purity detector 7 does not detect the target gas in the reacted mixed gas, the reacted mixed gas will be discharged from the gas exhaust pipe 8 to ensure that the target gas in the mixed gas is fully reacted and improve the separation and purification effect.

[0039] Embodiment 2

[0040] like Figure 1 - Figure 6 As shown, a motor 18 is fixedly installed on the upper part of the base 2, and a worm 14 is provided at the output end of the motor 18. The worm 14 is rotatably connected to the base 2, and the worm 14 is meshedly connected to the turbine 23. The turbine 23 is rotatably connected to the lower part of the reaction box 1. A first connecting plate 24 is fixedly connected to one side of the turbine 23, and the first connecting plate 24 is rotatably connected to the second connecting plate 25. The second connecting plate 25 is rotatably connected to the third connecting plate 26 on the side away from the first connecting plate 24, and the third connecting plate 26 is fixedly connected to the side close to the turbine 23 with a bevel gear 34. The bevel gear 34 is rotatably connected to the lower part of the reaction box 1, and the bevel gear 34 is meshedly connected to the bevel rack 22. The bevel rack 22 is fixedly connected to the slide bar 21, and the worm 14 is fixedly connected to the first gear 19, and the first gear 19 is meshedly connected to the second gear 20. Both sides of the second gear 20 are rotatably connected to the base 2.

[0041] The second gear 20 is slidably connected with a fixed plate 28, the fixed plate 28 and the sliding rod 21 are fixedly connected, the fixed plate 28 and the base 2 are slidably connected, the lower part of the sliding rod 21 is rotatably connected with a fourth connecting plate 27, the upper part of the fourth connecting plate 27 is fixedly connected with a first rack 29, the first rack 29 is meshed with a third gear 30, the third gear 30 is fixedly connected with a first rotating shaft 31, the first rotating shaft 31 and the base 2 are rotatably connected, the first rotating shaft 31 is fixedly connected with a first bevel gear 32, the first bevel gear 32 is meshed with a second bevel gear 33, the second bevel gear 33 and the threaded rod 13 are fixedly connected, an openable box door 3 is provided on one side of the reaction box 1, the box door 3 is provided with an observation window 4 for observing the inside of the reaction box 1, a solvent discharge pipe 10 for discharging a post-reaction solvent is provided at the lower part of the reaction box 1, and a pump body 9 is provided at the connection between the solvent discharge pipe 10 and the reaction box 1.

[0042] In this embodiment, the starting motor 18 drives the worm 14 to rotate, the worm 14 causes the meshing turbine 23 to rotate, the turbine 23 causes the fixedly connected first connecting plate 24 to rotate, the first connecting plate 24 causes the rotatably connected second connecting plate 25 to rotate, the second connecting plate 25 drives the bevel gear 34 to intermittently rotate forward and reverse through the rotatably connected third connecting plate 26, the rotation of the bevel gear 34 causes the meshing bevel rack 22 to rise and fall, the bevel rack 22 and the slide bar 21 are fixedly connected, that is, the stirring mechanism can be driven to rise and fall inside the reaction box 1;

[0043] The rotation of the worm 14 will drive the first fixed gear 19 to rotate, and the first gear 19 will cause the meshing second gear 20 to rotate. The rotation of the second gear 20 will drive the slide bar 21 to rotate through the slidably connected fixed plate 28. The second gear 20 and the fixed plate 28 are snap-fitted, and the lifting and lowering of the slide bar 21 will not affect the second gear 20. The rotation of the second gear 20 will always cause the slide bar 21 to rotate through the fixed plate 28. At the same time, when the slide bar 21 is lifted or lowered, it will drive the lower rotatably connected fixed plate 28 to lift or lower.

[0044] When the fixed plate 28 is lifted or lowered, the fixedly connected first rack 29 is driven to be lifted or lowered. When the first rack 29 is lifted or lowered, the meshingly connected third gear 30 is caused to rotate. The rotation of the third gear 30 causes the fixedly connected first rotating shaft 31 to rotate. The rotation of the first rotating shaft 31 causes the fixedly connected first bevel gear 32 to rotate. The rotation of the first bevel gear 32 causes the meshingly connected second bevel gear 33 to rotate. The second bevel gear 33 drives the fixedly connected threaded rod 13 to rotate, which causes the cleaning mechanism to operate.

[0045] The door 3 provided on one side of the reaction box 1 is convenient for collecting the reactants inside the reaction box 1 after the reaction is completed, and the observation window 4 is convenient for observing the inside of the reaction box 1. After the reaction is completed, the pump body 9 is started to discharge the solvent after the reaction from the inside of the reaction box 1 through the solvent discharge pipe 10.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory biochemical gas separation and purification device, comprising a reaction box (1) and a base (2), characterized in that: The base (2) and the reaction box (1) are fixedly connected. The upper portion of the reaction box (1) is provided with a liquid inlet (5) for adding a solvent that is compatible with the target gas into the reaction box (1). One side of the reaction box (1) is provided with an air inlet pipe (11) for delivering a mixed gas into the reaction box (1). A one-way valve (12) is provided at the connection between the air inlet pipe (11) and the one-way valve (12) for preventing the solvent added into the reaction box (1) from flowing out. The interior of the reaction box (1) is provided with a valve for allowing the mixed gas and the solvent to flow into the reaction box (1). The invention relates to a stirring mechanism for the reaction of the reaction chamber (1); a cleaning mechanism for preventing residues from accumulating on the inner wall of the reaction chamber (1); a gas reflux pipe (6) for recirculating and discharging the mixed gas after the reaction is arranged on the side of the reaction chamber (1) away from the air inlet pipe (11); a gas discharge pipe (8) for discharging a gas not containing the target gas is arranged on the side of the gas reflux pipe (6) away from the reaction chamber (1); and a purity detector (7) for detecting the concentration of the target gas is arranged at the connection between the gas reflux pipe (6) and the gas discharge pipe (8).

2. A laboratory biochemical gas separation and purification device according to claim 1, characterized in that: The stirring mechanism comprises a sliding rod (21) arranged inside the reaction box (1), the sliding rod (21) being slidably connected to the reaction box (1), the sliding rod (21) being fixedly connected to a plurality of stirring rods (15) for stirring, and the lower part of the sliding rod (21) passing through the reaction box (1) and extending to the upper part of the base (2).

3. A laboratory biochemical gas separation and purification device according to claim 1, characterized in that: The cleaning mechanism comprises a threaded rod (13) arranged inside the reaction box (1), the threaded rod (13) being rotatably connected to the reaction box (1), the lower part of the threaded rod (13) being rotatably connected to the base (2), the threaded rod (13) being threadedly connected to a cleaning plate (17) for cleaning the inner wall, the cleaning plate (17) being slidably connected to a plurality of fixed rods (16), the upper part of the fixed rod (16) being fixedly connected to the reaction box (1), and the lower part of the fixed rod (16) being fixedly connected to the base (2).

4. A laboratory biochemical gas separation and purification device according to claim 1, characterized in that: A motor (18) is fixedly mounted on the upper part of the base (2); a worm (14) is provided at the output end of the motor (18); the worm (14) is rotationally connected to the base (2); and the worm (14) is meshingly connected to a turbine (23).

5. A laboratory biochemical gas separation and purification device according to claim 4, characterized in that: The turbine (23) is rotatably connected to the lower part of the reaction box (1); a first connecting plate (24) is fixedly connected to one side of the turbine (23); the first connecting plate (24) is rotatably connected to a second connecting plate (25); and the second connecting plate (25) is rotatably connected to a third connecting plate (26) at a side away from the first connecting plate (24).

6. A laboratory biochemical gas separation and purification device according to claim 5, characterized in that: A bevel gear (34) is fixedly connected to one side of the third connecting plate (26) close to the turbine (23); the bevel gear (34) is rotationally connected to the lower part of the reaction box (1); the bevel gear (34) is meshingly connected to a bevel rack (22); and the bevel rack (22) is fixedly connected to the slide rod (21).

7. The biochemical gas separation and purification device for laboratory use according to claim 4, characterized in that: The worm (14) is fixedly connected to a first gear (19), the first gear (19) is meshingly connected to a second gear (20), and both sides of the second gear (20) are rotationally connected to the base (2).

8. A laboratory biochemical gas separation and purification device according to claim 7, characterized in that: The second gear (20) is slidably connected to a fixed plate (28), the fixed plate (28) and the slide bar (21) are fixedly connected, the fixed plate (28) and the base (2) are slidably connected, the lower part of the slide bar (21) is rotatably connected to a fourth connecting plate (27), the upper part of the fourth connecting plate (27) is fixedly connected to a first rack (29), the first rack (29) is meshingly connected to a third gear (30), the third gear (30) is fixedly connected to a first rotating shaft (31), and the first rotating shaft (31) and the base (2) are rotatably connected.

9. A laboratory biochemical gas separation and purification device according to claim 8, characterized in that: The first rotating shaft (31) is fixedly connected to a first bevel gear (32), the first bevel gear (32) is meshingly connected to a second bevel gear (33), and the second bevel gear (33) is fixedly connected to the threaded rod (13).

10. The biochemical gas separation and purification device for laboratory use according to claim 1, characterized in that: An openable box door (3) is provided on one side of the reaction box (1), and an observation window (4) is provided on the box door (3) for observing the interior of the reaction box (1). A solvent discharge pipe (10) for discharging a solvent after the reaction is provided at the bottom of the reaction box (1), and a pump body (9) is provided at the connection between the solvent discharge pipe (10) and the reaction box (1).

Images